EGR (Exhaust Gas Recirculation) channel built-in intake manifold processing clamp
By designing a built-in intake manifold machining fixture for the EGR channel, the coordination of the limiting parts and connecting parts is used to solve the problem of position offset of the special-shaped intake manifold during processing, the stable clamping and limiting of the intake manifold are achieved, and the processing quality is improved.
Patent Information
- Application Number
- CN202421872950.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-05
- Publication Date
- 2025-05-30
- Estimated Expiration
- 2034-08-05
AI Technical Summary
The prior art is difficult to effectively clamp and fix the special-shaped intake manifold, resulting in position deviation during processing, affecting the processing quality.
A built-in intake manifold machining fixture is designed to achieve clamping and fixing of the intake manifold and limiting and solid blocking through the coordination between the limiting parts and the connecting parts. The limiting member includes an elastic arc piece, an arc clip piece and an extruded arc piece, and the connecting member includes a connecting slide piece and a push piece to ensure stable clamping and position fixation of the intake manifold.
This fixture can not only stably clamp the intake manifold to ensure processing quality, but also limit the sides of the special-shaped intake manifold to avoid movement during processing and improve processing stability.
Smart Images
Figure CN222920392U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of tooling fixtures, in particular to a processing fixture for an intake manifold with an EGR passage built therein. Background Art
[0002] EGR is the abbreviation of Exhaust Gas Recirculation. Exhaust gas recirculation means that part of the exhaust gas discharged from the engine is sent back to the intake manifold and enters the cylinder again together with the fresh mixture. Since the exhaust gas contains a large amount of polyatomic gases such as nitrogen dioxide, and gases such as nitrogen dioxide cannot burn but absorb a large amount of heat due to their high specific heat capacity, the maximum combustion temperature of the mixture in the cylinder is reduced, thereby reducing the generation amount of nitrogen oxides. The intake manifold with an EGR (Exhaust Gas Recirculation) passage built therein is a technology that reduces the combustion temperature and harmful emissions by reintroducing part of the exhaust gas into the engine intake system.
[0003] The intake manifold includes a main pipe and a plurality of branch pipes communicated with the main pipe, and has a special-shaped structure. Moreover, its blank is usually formed by casting, and later, each connection end needs to be processed to ensure the stability and sealing performance of the connection. Therefore, when processing the intake manifold, however, when the common fixture clamps the special-shaped intake manifold, the contact surface between the fixture and the intake manifold is small, and the side surface of the intake manifold cannot be limited and fixed. Therefore, when processing the intake manifold, the position of the intake manifold may shift, affecting the processing quality. Therefore, the present application provides a processing fixture for an intake manifold with an EGR passage built therein to meet the use requirements. Summary of the Utility Model
[0004] The purpose of the utility model is to provide a processing fixture for an intake manifold with an EGR passage built therein for the deficiencies of the prior art. By means of a limiting component cooperating with a linkage component, the functions of clamping and fixing the intake manifold and limiting and blocking the intake manifold are realized, and the problem that the special-shaped intake manifold is inconvenient to clamp and fix is solved.
[0005] To achieve the above purpose, the utility model provides the following technical solution: A processing fixture for an intake manifold with an EGR passage built therein, including a workbench, a movable clamping plate and a limiting component. A rotating bracket is arranged on the side wall of the workbench, and a connecting frame is rotatably sleeved at the top of the rotating bracket. A connecting block is arranged at the bottom of the movable clamping plate, and the connecting block is fixedly sleeved inside the connecting frame. A plurality of clamping grooves are arranged inside the movable clamping plate. The limiting component includes an elastic arc plate. One end of the elastic arc plate is provided with a connecting card, and the connecting card is clamped inside the clamping groove. The other end of the elastic arc plate is provided with an arc-shaped clamping piece. Two weakening grooves are arranged on the inner wall of the elastic arc plate. A groove is arranged inside the arc-shaped clamping piece, and a pressing arc plate is arranged inside the groove. A linkage component is arranged inside the limiting component.
[0006] Preferably, the linkage member includes a connecting sliding piece, push pieces are arranged at both ends of the connecting sliding piece, the outer wall of the push piece is in contact with the inner wall of the extrusion arc piece, and a limiting sliding seat is arranged on the inner wall of the movable clamping plate.
[0007] Preferably, a limiting sliding groove is arranged inside the limiting sliding seat, and the connecting sliding piece is slidably sleeved inside the limiting sliding groove.
[0008] Preferably, a connecting pin is rotatably sleeved inside the connecting frame, a rotating bracket and a pushing cylinder are arranged on the side wall of the workbench, the top end of the pushing cylinder is rotatably connected with the connecting pin, and the rotating bracket is rotatably sleeved inside the connecting frame.
[0009] Preferably, the elastic arc piece, the arc-shaped clamping piece, and the connecting card are of an integral structure and are made of metal.
[0010] Preferably, the extrusion arc piece is of an arc-shaped structure.
[0011] Preferably, the connecting sliding piece and the push piece are of an integral structure, and the linkage member is made of metal.
[0012] Preferably, a fixing seat is arranged on the side wall of the workbench, a fixing clamping plate is arranged on the top of the fixing seat, and a plurality of clamping grooves are arranged inside the fixing clamping plate.
[0013] Preferably, a baffle is arranged inside the clamping groove, and the outer wall of the baffle is in contact with the outer wall of the connecting card.
[0014] Preferably, a plurality of rubber pads are arranged at the bottom of the workbench.
[0015] The beneficial effects of the present utility model are as follows:
[0016] By arranging the limiting member and the linkage member, the present utility model can not only clamp and fix the intake manifold, but also limit and block the special-shaped intake manifold. Such a setting can, on the one hand, ensure the stability of the intake manifold clamping, and on the other hand, can limit and block the side of the special-shaped intake manifold to avoid the problem that the intake manifold moves during processing and affects the processing quality.
[0017] In summary, the present utility model has the advantages of clamping and fixing the intake manifold, and can limit and block the position of the intake manifold, and can improve the stability of the intake manifold. Description of the Drawings
[0018] Figure 1 It is a three-dimensional structural schematic diagram of a processing fixture for an intake manifold with an EGR passage built-in;
[0019] Figure 2 It is an enlarged three-dimensional structural schematic diagram of the cooperation between the movable clamping plate and the limiting clamping piece;
[0020] Figure 3 For Figure 2 Schematic diagram of sectional three-dimensional enlarged structure;
[0021] Figure 4 For Figure 3 Schematic diagram of enlarged structure at position B in
[0022] Reference numerals: 1, workbench; 2, fixed clamping plate; 3, movable clamping plate; 4, limiting member; 401, elastic arc piece; 402, arc-shaped clamping piece; 403, extrusion arc piece; 404, weakening groove; 405, connecting card; 406, groove; 5, linkage member; 501, connecting sliding piece; 502, pushing piece; 6, clamping groove; 7, baffle; 8, limiting sliding seat; 9, limiting sliding groove; 10, connecting block; 11, connecting frame; 12, rotating bracket; 13, pushing cylinder; 14, connecting pin; 15, fixed seat; 16, rubber pad. Specific embodiments
[0023] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.
[0024] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the 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 orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present invention. In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include one or more of such features. In the description of the present invention, "a plurality" means two or more, unless otherwise specifically defined.
[0025] Embodiment 1
[0026] As Figures 1 to 4As shown in the figure, this embodiment provides a processing fixture for an intake manifold with an EGR passage built-in, which includes a workbench 1, a movable clamping plate 3, and a limiting component 4. A rotating bracket 12 is arranged on the side wall of the workbench 1, and a connecting frame 11 is rotatably sleeved at the top of the rotating bracket 12. A connecting block 10 is arranged at the bottom of the movable clamping plate 3, and the connecting block 10 is fixedly sleeved inside the connecting frame 11. A fixed seat 15 is arranged on the side wall of the workbench 1, and a fixed clamping plate 2 is arranged on the top of the fixed seat 15. A number of clamping grooves 6 are arranged inside both the fixed clamping plate 2 and the movable clamping plate 3. The limiting component 4 includes an elastic arc plate 401, one end of the elastic arc plate 401 is provided with a connecting card 405, and the connecting card 405 is clamped inside the clamping groove 6. The other end of the elastic arc plate 401 is provided with an arc-shaped clamping piece 402. Two weakening grooves 404 are arranged on the inner wall of the elastic arc plate 401. A groove 406 is arranged inside the arc-shaped clamping piece 402, and an extrusion arc plate 403 is arranged inside the groove 406. A linkage component 5 is arranged inside the limiting component 4. The elastic arc plate 401, the arc-shaped clamping piece 402, and the connecting card 405 are of an integral structure and are made of metal material. The extrusion arc plate 403 is of an arc-shaped structure. By arranging the limiting component 4 and the linkage component 5, the limiting components 4 are linearly arranged inside the fixed clamping plate 2 and the movable clamping plate 3. The limiting component 4 is an integral structure composed of the elastic arc plate 401, the arc-shaped clamping piece 402, and the extrusion arc plate 403. The linkage component 5 is arranged between two groups of limiting components 4. Elastic arc plates 401 are arranged at both ends of the arc-shaped clamping piece 402, and the two elastic arc plates 401 are of a mirror image structure. The weakening grooves 404 arranged inside the two elastic arc plates 401 are also of a mirror image structure. The elastic arc plate 401 has a certain elasticity. The groove 406 is arranged in the middle of the arc-shaped clamping piece 402. When clamping the intake manifold, the extrusion arc plate 403 first contacts the surface of the intake manifold and is extruded. When the extrusion arc plate 403 is extruded to a certain extent, the arc-shaped clamping piece 402 contacts the surface of the intake manifold, and the arc-shaped clamping piece 402 is extruded, causing the elastic arc plate 401 to deform at the weakening groove 404. Then, under the action of the elasticity of the elastic arc plate 401 and in cooperation with the arc-shaped clamping piece 402, the intake manifold is clamped and fixed. At the same time, the connecting sliding piece 501 is pushed to slide directionally inside the limiting sliding groove 9 arranged inside the limiting sliding seat 8, thereby pushing the other group of extrusion arc plates 403 outwards by the connecting sliding piece 501, so that the other group of arc-shaped clamping pieces 402 contact the side surface of the intake manifold, and the position of the intake manifold can be limited and blocked. Such a setting can ensure the stability of the intake manifold clamping on the one hand, and can limit and block the side surface of the special-shaped intake manifold on the other hand, avoiding the problem that the intake manifold moves during processing and affects the processing quality.
[0027] As an implementation manner in this embodiment, as Figures 2 to 4As shown in the figure, the linkage component 5 includes a connecting sliding piece 501. Push pieces 502 are arranged at both ends of the connecting sliding piece 501. The outer wall of the push piece 502 is in contact with the inner wall of the extrusion arc piece 403. A limiting sliding seat 8 is arranged on the inner wall of the movable clamping plate 3, and a limiting sliding groove 9 is arranged inside the limiting sliding seat 8. The connecting sliding piece 501 is slidably sleeved inside the limiting sliding groove 9. The connecting sliding piece 501 and the push piece 502 are of an integral structure, and the linkage component 5 is made of metal material.
[0028] As an implementation manner in this embodiment, as Figure 1 shown in the figure, a connecting pin 14 is rotatably sleeved inside the connecting frame 11. A rotating bracket 12 and a pushing cylinder 13 are arranged on the side wall of the workbench 1. The top end of the pushing cylinder 13 is rotatably connected to the connecting pin 14, and the rotating bracket 12 is rotatably sleeved inside the connecting frame 11.
[0029] As an implementation manner in this embodiment, as Figure 2 shown in the figure, a baffle 7 is arranged inside the clamping groove 6. The outer wall of the baffle 7 is in contact with the outer wall of the connecting card 405. By arranging the clamping groove 6 and the baffle 7, the connecting card 405 is fixedly sleeved inside the clamping groove 6, and the position of the connecting card 405 is restricted by the baffle 7, which is convenient for installing and fixing the limiting component 4 inside the movable clamping plate 3.
[0030] As an implementation manner in this embodiment, as Figure 1 shown in the figure, a plurality of rubber pads 16 are arranged at the bottom of the workbench 1. By arranging the rubber pads 16, when the intake manifold is placed on the rubber pads 16, it can be avoided that the surface of the intake manifold contacts the surface of the workbench 1, and scratches on the surface of the intake manifold can be avoided, which affects the quality of the intake manifold.
[0031] Working steps
[0032] Before processing, place the intake manifold on the rubber pad 16 and place it between the fixed clamping plate 2 and the movable clamping plate 3. Then, by controlling the pushing cylinder 13, push the connecting frame 11 to rotate around the rotating bracket 12, so that the distance between the movable clamping plate 3 and the fixed clamping plate 2 is reduced, and the intake manifold is clamped. Since the intake manifold is a special-shaped structure and its surface is irregular, the extrusion arc piece 403 and the arc-shaped clamping piece 402 come into contact with the surface of the intake manifold successively. When the extrusion arc piece 403 is squeezed, it pushes the connecting sliding piece 501 to slide directionally inside the limit sliding groove 9 provided inside the limit sliding seat 8. Furthermore, the connecting sliding piece 501 pushes another group of extrusion arc pieces 403 outwards, so that another group of arc-shaped clamping pieces 402 come into contact with the side surface of the intake manifold to limit and fix the intake manifold. At the same time, when the arc-shaped clamping piece 402 is squeezed, the elastic arc piece 401 deforms at the weakening groove 404. Then, under the action of the elasticity of the elastic arc piece 401 and in cooperation with the arc-shaped clamping piece 402, the intake manifold is clamped and fixed. The EGR passage built-in intake manifold processing fixture of the present application can not only clamp and fix the intake manifold to ensure the stability of the intake manifold clamping, but also limit and fix the side surface of the special-shaped intake manifold to avoid the problem that the intake manifold moves during processing and affects the processing quality.
[0033] The above are only the preferred embodiments of the present invention, and are not intended to limit the present invention. Any modifications, equivalent replacements, and improvements made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.
Claims
1. A machining fixture for an EGR channel built-in intake manifold, comprising a workbench, a movable clamp and a limiting component, characterized in that: The side wall of the workbench is provided with a rotating bracket, the top of the rotating bracket is rotatably sleeved with a connecting frame, the bottom of the movable splint is provided with a connecting block, the connecting block is fixedly sleeved inside the connecting frame, a plurality of card slots are provided inside the movable splint, the limiting component includes an elastic arc piece, one end of the elastic arc piece is provided on a connecting card, the connecting card is clamped in the card slot, the other end of the elastic arc piece is provided with an arc-shaped clip, the inner wall of the elastic arc piece is provided with two weakening grooves, the arc clip is provided with a groove, the groove is provided with an extrusion arc piece, and the limiting component is provided with a linkage component.
2. The EGR channel built-in intake manifold processing fixture according to claim 1, characterized in that: The linkage component comprises a connecting slide, and push pieces are arranged at both ends of the connecting slide. The outer wall of the push piece contacts the inner wall of the extrusion arc piece, and a limited position slide is arranged on the inner wall of the movable clamping plate.
3. The EGR channel built-in intake manifold processing fixture according to claim 2, characterized in that: A limiting sliding groove is arranged inside the limiting sliding seat, and the connecting sliding piece is slidably sleeved inside the limiting sliding groove.
4. The EGR channel built-in intake manifold processing fixture according to claim 1, characterized in that: A connecting pin is rotatably sleeved inside the connecting frame, a rotating bracket and a pushing cylinder are provided on the side wall of the workbench, the top of the pushing cylinder is rotatably connected to the connecting pin, and the rotating bracket is rotatably sleeved inside the connecting frame.
5. The EGR channel built-in intake manifold processing fixture according to claim 1, characterized in that: The elastic arc piece, the arc-shaped clip and the connecting card are an integrated structure and are made of metal.
6. The EGR channel built-in intake manifold processing fixture according to claim 1, characterized in that: The extruded arc sheet has an arc-shaped structure.
7. The EGR channel built-in intake manifold processing fixture according to claim 2, characterized in that: The connecting slide and the pushing plate are an integrated structure, and the linkage component is made of metal.
8. The EGR channel built-in intake manifold processing fixture according to claim 1, characterized in that: The side wall of the workbench is provided with a fixing seat, the top of the fixing seat is provided with a fixing clamping plate, and a plurality of card slots are provided inside the fixing clamping plate.
9. The EGR channel built-in intake manifold processing fixture according to claim 1, characterized in that: A baffle is arranged inside the card slot, and an outer wall of the baffle contacts an outer wall of the connecting card.
10. The EGR channel built-in intake manifold processing fixture according to claim 1, characterized in that: A plurality of rubber pads are arranged at the bottom of the workbench.