A mold for engine installation and engine installation method

Abstract

The present invention discloses a jig for engine installation and an engine installation method, wherein the jig comprises a first installation part, a second installation part and a connecting rod connecting the first installation part and the second installation part, wherein the two ends of the first installation part are respectively used to connect the two front suspension lower brackets of the engine, and the two ends of the second installation part are respectively used to connect the two rear suspension brackets; wherein the first installation part is a hollow structure, and the second installation part is a plate-like structure. The present invention improves the existing installation method in view of the characteristics of the engine housing, so that the engine installation can be successful at one time.

Description

Technical Field

[0001] The present invention relates to the field of vehicle manufacturing, and in particular to a mold for engine installation and an engine installation method. Background Art

[0002] Engine installation mainly refers to the installation of the engine mounting system, which includes the upper mounting bracket, the lower mounting bracket and the shock-absorbing cushion. The main functions of the mounting system are to isolate vibration, support and position the engine, protect the engine, and overcome and balance the reaction force generated by the torque output.

[0003] The inventor believes that, at present, due to the poor precision of parts, the upper suspension bracket and the lower suspension bracket have long holes in the left and right and front and back directions. This leads to the problem that the engine is not positioned, and the construction of the workshop is difficult during the construction process. The engine needs to be adjusted many times to ensure the installation size. In addition, it is easy for the engine to tilt left and right after installation. This problem affects the production rhythm of the workshop and can easily cause resonance of the whole vehicle.

[0004] The inventor also believes that if the engine tilts left or right after installation, the engine needs to be adjusted to ensure that the engine is installed in the correct posture, which obviously affects work efficiency. Summary of the invention

[0005] In view of the disadvantage that the existing engine installation method easily causes the engine to tilt left or right after installation, the present invention aims to provide an engine installation method, which improves the existing installation method according to the characteristics of the engine housing, so that the engine installation can be successful in one go.

[0006] A first object of the present invention is to provide a mold for engine installation.

[0007] A second object of the present invention is to provide an engine mounting method.

[0008] In order to achieve the above-mentioned invention object, the present invention discloses the following technical solutions:

[0009] First, the present invention discloses a jig for mounting an engine, comprising a first mounting portion, a second mounting portion, and a connecting rod connecting the first mounting portion and the second mounting portion, wherein two ends of the first mounting portion are respectively used to connect two front undersuspension brackets of the engine, and two ends of the second mounting portion are respectively used to connect two rear undersuspension brackets;

[0010] The first mounting portion is a hollow structure, and the second mounting portion is a plate-like structure.

[0011] Furthermore, the first mounting portion is box-shaped, and an opening is provided on the top side of the first mounting portion.

[0012] Furthermore, the vertical cross-section of the first mounting portion is in an inverted trapezoidal shape.

[0013] Furthermore, two side surfaces of the first mounting portion are inclined surfaces, and the two side surfaces of the first mounting portion can be connected to two front undersuspension brackets of the engine.

[0014] Further, the connecting rod connects a bottom side of the first mounting portion and a bottom side of the second mounting portion.

[0015] Furthermore, two connecting rods are provided, and the two connecting rods are arranged in parallel.

[0016] Secondly, the present invention discloses an engine installation method, using the tire for engine installation, comprising the following steps:

[0017] A positioning hole and a long hole are set in the X direction of the engine, and a positioning hole and a long hole are set in the Y direction of the engine;

[0018] At the engine pre-assembly station, fix the engine front suspension upper bracket, front suspension shock-absorbing cushion, rear suspension shock-absorbing cushion, and rear suspension upper bracket to the engine respectively;

[0019] Using the jig for engine installation, fix the front suspension lower bracket in the X direction, and fix the first rear suspension shock-absorbing cushion in the Y direction of the ring beam;

[0020] Secure the preassembled engine to the mounting bracket.

[0021] Further, a long hole extending in the X direction is provided on the first front suspension lower bracket and the second front suspension beam lower bracket of the engine, and a circular hole is provided on the first front suspension upper bracket, the second front suspension upper bracket, the first rear suspension upper bracket, the second rear suspension upper bracket and the ring beam of the engine;

[0022] The first front suspension lower bracket of the engine, the connection between the first side mounting hole of the ring beam and the first front suspension shock-absorbing cushion, and the connection between the first side mounting hole of the ring beam and the first rear suspension shock-absorbing cushion are all arranged in a long hole extending in the Y direction;

[0023] Round holes are set on the right sides of the first front suspension upper bracket, the second front suspension upper bracket, the first rear suspension upper bracket, the second rear suspension upper bracket, the second front suspension lower bracket and the ring beam; that is, the second side of the rear suspension beam of the engine is the positioning hole for installing the entire engine.

[0024] Furthermore, the plurality of circular holes are all positioning holes.

[0025] Furthermore, during use of the mold, the first mounting portion abuts against the front suspension, and the second mounting portion abuts against the first rear suspension lower bracket and the second rear suspension lower bracket.

[0026] Compared with the prior art, the present invention has achieved the following beneficial effects:

[0027] 1) In the present invention, a jig that meets the requirements of engine installation is used to assist in positioning the engine during installation. The shape of the jig can temporarily fix the engine during installation. Compared with previous engine installation auxiliary tools, the jig disclosed in the present invention can install the engine in place at one time, improve construction efficiency, and ensure that the position of the engine after installation is accurate without tilting left or right.

[0028] 2) The tire mold disclosed in the present invention includes two installation parts, which correspond to the front and rear suspensions of the engine respectively. During installation, it can not only temporarily fix the front and rear suspensions of the engine, but also assist in determining the fixed positions of the front and rear suspensions of the engine, thereby avoiding installation position deviations caused by insufficient precision.

[0029] 3) In the installation method disclosed in the present invention, the method of setting long holes is combined with a jig to avoid errors caused by insufficient precision. The long holes can roughly determine the installation position in the X\Y direction, and the jig can further accurately determine the installation position. Without improving the manufacturing precision, the installation method disclosed in the present invention can improve the final installation precision of the engine and improve product quality.

[0030] 4) In the installation method disclosed in the present invention, the installation jig uses the front and rear suspensions of the engine that have been installed and are easy to position as a positioning reference, and its positioning is simple and convenient, and easy to use. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] The accompanying drawings in the specification, which constitute a part of the present invention, are used to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute improper limitations on the present invention.

[0032] Figure 1 This is a schematic diagram of the overall structure of Example 1.

[0033] Figure 2 Schematic diagram of the engine casing after installation in Example 2.

[0034] In the figure, 1, first rear suspension upper bracket, 2, first rear suspension shock-absorbing pad, 3, ring beam, 4, first front suspension lower bracket, 5, first front suspension shock-absorbing pad, 6, first front suspension upper bracket, 7, second front suspension lower bracket, 8, second front suspension shock-absorbing pad, 9, second front suspension upper bracket, 10, rear suspension beam, 11, second rear suspension upper bracket, 12, front suspension beam, 101, first mounting portion, 102, second mounting portion, 103, connecting rod. DETAILED DESCRIPTION

[0035] It should be noted that the following detailed descriptions are all illustrative and intended to provide further explanation of the present invention. Unless otherwise specified, all technical and scientific terms used herein have the same meanings as those commonly understood by those skilled in the art to which the present invention belongs.

[0036] In the description of the present invention, it should be noted that the directions or positional relationships indicated by the terms "left", "right", "front", "rear", etc. are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation on the present invention. In addition, the terms "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0037] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit exemplary embodiments according to the present invention. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprising" and / or "including" are used in this specification, it indicates the presence of features, steps, operations, devices, components and / or combinations thereof.

[0038] As described in the background technology, the existing engine installation method easily causes the engine to tilt left or right after installation. The present invention aims to provide an engine installation method. According to the characteristics of the engine casing, the existing installation method is improved so that the engine installation can be successful in one go. The present invention is further explained in conjunction with the accompanying drawings and specific implementation methods.

[0039] Example 1

[0040] Please refer to Figure 1 This embodiment discloses a jig for mounting an engine, comprising a first mounting portion, a second mounting portion, and a connecting rod connecting the first mounting portion and the second mounting portion, wherein the two ends of the first mounting portion are respectively used to connect two front suspension lower brackets of the engine, and the two ends of the second mounting portion are respectively used to connect two rear suspension brackets;

[0041] The first mounting part is a hollow structure, and the second mounting part is a plate-like structure; specifically, the first mounting part is box-shaped, and an opening is provided on the top side of the first mounting part. The first mounting part is set in a box shape so that the first mounting part can cooperate with the front suspension beam 12 of the engine. It can be understood that the front suspension beam 12 of the engine is a plate with a certain thickness, so the first mounting part needs to abut against the top surface of the front suspension beam 12, so the first mounting part needs to have a certain thickness. In order to save materials, the first mounting part adopts a box-like structure with a hollow structure.

[0042] More specifically, a side of the front suspension beam 12 of the engine that abuts against the first mounting portion is in an inverted trapezoidal shape. Therefore, a vertical cross-section of the first mounting portion is in an inverted trapezoidal shape to match the rear suspension beam 10 .

[0043] In addition, two side surfaces of the first mounting portion are inclined surfaces, and the two side surfaces of the first mounting portion can be connected to two front suspension upper brackets of the engine.

[0044] The connecting rod connects a bottom side of the first mounting portion and a bottom side of the second mounting portion.

[0045] There are two connecting rods, which are arranged in parallel to increase the connection strength.

[0046] Example 2

[0047] First of all, please refer to Figure 2 The engine to be installed in Example 2 is a part of the engine, which includes a fixed ring beam 3, a front suspension beam 12 is installed at the first position of the ring beam 3, and a rear suspension beam 10 is installed at the second position of the ring beam 3; both sides of the front suspension beam 12 need to be connected with the first front suspension lower bracket 4 and the second front suspension lower bracket 7, the first front suspension lower bracket 4 and the second front suspension lower bracket 7 are collectively referred to as the front suspension lower bracket, the first front suspension lower bracket 4 is connected to the first front suspension upper bracket 6, the second front suspension lower bracket 7 is connected to the second front suspension upper bracket 9, the first front suspension upper bracket 6 and the second front suspension upper bracket 9 are collectively referred to as the front suspension upper bracket; both sides of the rear suspension beam 10 need to be connected with the first rear suspension lower bracket and the second rear suspension lower bracket, the first rear suspension lower bracket and the second rear suspension lower bracket are collectively referred to as the rear suspension lower bracket, the first rear suspension lower bracket is connected to the first rear suspension upper bracket 1, and the second rear suspension lower bracket is connected to the second rear suspension upper bracket 11.

[0048] Embodiment 2 discloses an engine installation method, using a jig for engine installation as shown in Embodiment 1, comprising the following steps:

[0049] A positioning hole and a long hole are set in the X direction of the engine, and a positioning hole and a long hole are set in the Y direction of the engine;

[0050] At the engine pre-assembly station, fix the engine front suspension upper bracket, front suspension shock-absorbing cushion, rear suspension shock-absorbing cushion, and rear suspension upper bracket to the engine respectively;

[0051] The front suspension lower bracket is fixed in the X direction by using the jig for engine installation, and the first rear suspension shock-absorbing cushion 2 is fixed in the Y direction of the ring beam 3;

[0052] Secure the preassembled engine to the mounting bracket.

[0053] Further, a long hole extending in the X direction is provided on the first front suspension lower bracket 4 and the second front suspension beam 12 lower bracket of the engine, and a circular hole is provided on the first front suspension upper bracket 6, the second front suspension upper bracket 9, the first rear suspension upper bracket 1, the second rear suspension upper bracket 11 and the ring beam 3 of the engine;

[0054] The first front suspension lower bracket 4 of the engine, the connection between the first side mounting hole of the ring beam 3 and the first front suspension shock-absorbing cushion 5, and the connection between the first side mounting hole of the ring beam 3 and the first rear suspension shock-absorbing cushion 2 are all arranged in a long hole extending in the Y direction;

[0055] Round holes are arranged on the right sides of the first front suspension upper bracket 6, the second front suspension upper bracket 9, the first rear suspension upper bracket 1, the second rear suspension upper bracket 11, the second front suspension lower bracket 7 and the ring beam 3; that is, the second side of the rear suspension beam 10 of the engine is the positioning hole for installing the entire engine.

[0056] In this embodiment, a plurality of the circular holes are used as positioning holes.

[0057] It can be understood that the X direction and the Y direction are two directions perpendicular to each other on the plane, wherein Figure 2 For reference, the X direction is the front-to-back direction, and the Y direction is the left-to-right direction.

[0058] It can be understood that the front suspension lower bracket is fixed in the X direction by using the jig for engine installation, and the first rear suspension shock-absorbing pad 2 is fixed in the Y direction of the ring beam 3; in this process, the first mounting portion abuts the front suspension, and the second mounting portion abuts the first rear suspension lower bracket and the second rear suspension lower bracket.

[0059] Secure the preassembled engine to the mounting bracket.

[0060] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A method for installing an engine using a jig, characterized in that: The mold comprises a first mounting portion, a second mounting portion and a connecting rod connecting the first mounting portion and the second mounting portion, wherein two ends of the first mounting portion are respectively used to connect two front suspension lower brackets of the engine, and two ends of the second mounting portion are respectively used to connect two rear suspension brackets; Wherein, the first mounting portion is a hollow structure, and the second mounting portion is a plate-like structure; The installation method comprises the following steps: A positioning hole and a long hole are set in the X direction of the engine, and a positioning hole and a long hole are set in the Y direction of the engine; At the engine pre-assembly station, fix the engine front suspension upper bracket, front suspension shock-absorbing cushion, rear suspension shock-absorbing cushion, and rear suspension upper bracket to the engine respectively; The front suspension lower bracket is fixed in the X direction by using the jig for engine installation, and the first rear suspension shock-absorbing cushion is fixed in the Y direction of the ring beam, wherein the X direction and the Y direction are two directions perpendicular to each other on the plane, the X direction is the front-to-back direction, and the Y direction is the left-to-right direction; Secure the preassembled engine to the mounting bracket.

2. An engine installation method according to claim 1, characterized in that: The first mounting portion is box-shaped, and an opening is provided on the top side of the first mounting portion.

3. An engine installation method as claimed in claim 2, characterized in that: The vertical cross section of the first mounting portion is in an inverted trapezoidal shape.

4. An engine installation method as claimed in claim 3, characterized in that: The two side surfaces of the first mounting portion are inclined surfaces, and the two side surfaces of the first mounting portion can be connected to the two front undersuspension brackets of the engine.

5. An engine installation method as claimed in claim 1, characterized in that: The connecting rod connects a bottom side of the first mounting portion and a bottom side of the second mounting portion.

6. An engine installation method as claimed in claim 1, characterized in that: There are two connecting rods, and the two connecting rods are arranged in parallel.

7. An engine installation method as claimed in claim 1, characterized in that: Long holes extending in the X direction are provided on the first front suspension lower bracket and the second front suspension beam lower bracket of the engine, and circular holes are provided on the first front suspension upper bracket, the second front suspension upper bracket, the first rear suspension upper bracket, the second rear suspension upper bracket and the ring beam of the engine; The first front suspension lower bracket of the engine, the connection between the first side mounting hole of the ring beam and the first front suspension shock-absorbing cushion, and the connection between the first side mounting hole of the ring beam and the first rear suspension shock-absorbing cushion are all arranged in a long hole extending in the Y direction; Round holes are arranged on the right sides of the first front suspension upper bracket, the second front suspension upper bracket, the first rear suspension upper bracket, the second rear suspension upper bracket, the second front suspension lower bracket and the ring beam; that is, the second side of the rear suspension beam of the engine is the positioning hole for installing the entire engine.

8. An engine installation method as claimed in claim 7, characterized in that: The plurality of circular holes are all positioning holes.

9. An engine installation method as claimed in claim 1, characterized in that: During use of the mold, the first mounting portion abuts against the front suspension, and the second mounting portion abuts against the first rear suspension lower bracket and the second rear suspension lower bracket.

Images