An automobile engine assembling fixture

Abstract

The utility model relates to the technical field of engine assembly, specifically relates to a kind of automobile engine assembly fixture, and the outer wall one side of frame body is fixedly connected with pump body by bolt, and the one end of two air pipes is communicated with the outlet of pump body, and the top of bearing plate is rotatably connected with support plate, and the bottom one side of bearing plate is fixedly connected with driving motor by bolt, and the bottom of support plate is fixedly connected with rotating rod, by setting multiple pneumatic telescopic rod and extruding plate, and combining the design of clamp plate and second cylinder, can automatically or manually adjust clamping point according to the appearance size of different models of engine, ensure that clamping force is evenly distributed, effectively avoid the phenomenon of workpiece shaking or deviation caused by unstable clamping, improve assembly accuracy.

Description

Technical Field

[0001] This utility model relates to the field of engine assembly technology, and in particular to an automotive engine assembly fixture. Background Technology

[0002] The automobile engine is the core power component of a car, its main function being to convert the chemical energy of fuel into mechanical energy to provide driving force. In automobile manufacturing and repair, engine assembly is a highly technical and complex process that directly affects the performance and reliability of the entire vehicle. During assembly, various engine components must be combined, adjusted, and secured according to strict technological processes to ensure normal operation and long-term stable function. In engine assembly, assembly fixtures, as key auxiliary equipment, have a decisive impact on assembly quality, efficiency, and operational safety due to their performance and stability. Especially in the assembly of the engine block with components such as the transmission and accessories, the engine needs to be stably clamped and flexibly adjusted to facilitate precise docking and fastening of various components.

[0003] Utility model patent CN201856188U discloses an engine assembly fixture. A pallet seat is rotatably mounted on a pallet base, and a reducer is installed at the upper end of a support frame. The output shaft of the reducer is supported on the top of the support frame by bearings, and the end of the output shaft is fixed to a positioning plate. Through holes are distributed on the positioning plate, corresponding to the positioning pin holes and fastening screw holes of the transmission on the engine crankcase. This device allows the engine crankcase to rotate freely 360° in both the vertical and horizontal planes, facilitating free assembly of the engine. It is not only simple and convenient to operate but also greatly improves assembly efficiency and effectively reduces the labor intensity of workers. This utility model allows the assembly of an entire engine to be completed at a single workstation, enabling assembly line operations. It is particularly beneficial for mass production, improving efficiency and reducing assembly costs, and can be widely used in automobile manufacturing enterprises or 4S shops for engine disassembly and assembly operations.

[0004] However, in practical applications, existing engine assembly fixtures still have a series of significant technical problems in terms of clamping and fixing. When clamping the engine body, these fixtures struggle to achieve comprehensive and stable clamping of all critical engine components, resulting in uneven clamping force. This can easily cause the engine to shake or shift during assembly, affecting assembly accuracy. Therefore, to address the numerous shortcomings of existing technologies, there is an urgent need to provide a new automotive engine assembly fixture. Utility Model Content

[0005] The purpose of this utility model is to provide an automotive engine assembly fixture that solves the problem that existing fixtures, when clamping the engine body, are unable to achieve comprehensive and stable clamping of various key parts of the engine, resulting in uneven clamping force, which can easily cause the engine to shake or shift during assembly and affect assembly accuracy.

[0006] To achieve the above objectives, this utility model provides an automotive engine assembly fixture, including a frame, and a support plate slidably connected to the lower inner side of the frame, with air pipes fixedly connected to both sides of the top of the support plate.

[0007] A pump body is bolted to one side of the outer wall of the frame, and one end of each of the two air pipes is connected to the outlet of the pump body. A support plate is rotatably connected to the top of the support plate, and a drive motor is bolted to one side of the bottom of the support plate. A rotating rod is fixedly connected to the bottom of the support plate, and the bottom end of the rotating rod passes through the support plate and is connected to the output shaft of the drive motor. Several pneumatic telescopic rods are connected to the opposite sides of the two air pipes, and a compression plate is fixedly connected to one end of each pneumatic telescopic rod. Clamping plates are slidably connected to both sides of the top of the support plate.

[0008] Each of the two clamping plates has a sliding block fixedly connected to its bottom, and both sliding blocks are slidably connected to the support plate through sliding grooves.

[0009] The support plate has a second cylinder fixedly connected to both sides by bolts, and the output shaft of the second cylinder passes through one side of the support plate. The output shaft of the second cylinder is fixedly connected to one side of the sliding block.

[0010] One side of the frame is equipped with a connecting pipe, and both ends of the connecting pipe penetrate the side wall of the frame. The two ends of the two connecting pipes are connected to one side of the two air pipes respectively. A control valve is installed on both ends of the connecting pipe, and one end of the connecting pipe is connected to the connection port of the pump body.

[0011] The support plate has sliders fixedly connected to both sides, and both sliders are slidably connected to the side wall of the frame through a groove.

[0012] Each of the two sliders has a side plate fixedly connected to one side, and the upper two sides of the frame are fixedly connected to a top plate. The top of each of the two top plates is fixedly connected to a first cylinder by bolts. The output shaft of the first cylinder passes through the top of the top plate and is fixedly connected to the top of the side plate.

[0013] This utility model discloses an automotive engine assembly fixture. By incorporating multiple pneumatic telescopic rods and a pressing plate, combined with the design of the clamping plate and a second cylinder, the clamping points can be automatically or manually adjusted according to the external dimensions of different engine models. This ensures uniform distribution of clamping force, effectively preventing workpiece swaying or displacement caused by unstable clamping, thus improving assembly accuracy. Secondly, the sliding structure of the support plate on the frame enables flexible adjustment of the engine height, solving the problems of inconvenient adjustment and limited applicability of traditional fixtures, enhancing the fixture's versatility and adaptability. Thirdly, the linkage structure between the rotating rod at the bottom of the support plate and the drive motor allows the engine to rotate freely in the horizontal plane, greatly facilitating the docking operation of components at different angles during assembly, reducing the time and labor intensity of repeated manual adjustments, and improving overall assembly efficiency. Furthermore, the application of the pneumatic system not only improves the clamping response speed but also provides good buffering performance, avoiding the risk of engine housing damage due to excessive clamping force, further ensuring the safety and reliability of the assembly process. Attached Figure Description

[0014] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the accompanying drawings used in the description of the embodiments or the prior art will be briefly introduced below.

[0015] Figure 1 This is a schematic diagram of the overall main view structure of an embodiment of this utility model.

[0016] Figure 2 This is a side view structural diagram of an embodiment of the present utility model.

[0017] Figure 3 This is a top view of an embodiment of the present invention.

[0018] Figure 4 This is a schematic diagram of the support plate structure according to an embodiment of the present utility model.

[0019] Figure 5 This is a schematic diagram of the trachea structure according to an embodiment of the present invention.

[0020] 1. Frame; 2. Support plate; 3. Side plate; 4. Slider; 5. Slide groove; 6. Top plate; 7. First cylinder; 8. Support plate; 9. Clamping plate; 10. Sliding block; 11. Second cylinder; 12. Sliding groove; 13. Air pipe; 14. Pneumatic telescopic rod; 15. Extrusion plate; 16. Drive motor; 17. Connecting pipe; 18. Control valve; 19. Rotating rod; 20. Pump body. Detailed Implementation

[0021] The embodiments of the present invention are described in detail below. Examples of the embodiments are shown in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the present invention, but should not be construed as limiting the present invention.

[0022] Please see Figure 1-5 .

[0023] An automotive engine assembly fixture includes a frame 1, and a support plate 2 is slidably connected to the lower inner side of the frame 1. Air pipes 13 are fixedly connected to both sides of the top of the support plate 2.

[0024] A pump body 20 is bolted to one side of the outer wall of the frame 1, and one end of each of the two air pipes 13 is connected to the outlet of the pump body 20. A support plate 8 is rotatably connected to the top of the support plate 2, and a drive motor 16 is bolted to one side of the bottom of the support plate 2. A rotating rod 19 is fixedly connected to the bottom of the support plate 8, and the bottom end of the rotating rod 19 passes through the support plate 2. The bottom end of the rotating rod 19 is connected to the output shaft of the drive motor 16. Several pneumatic telescopic rods 14 are connected to the opposite side of each of the two air pipes 13, and a compression plate 15 is fixedly connected to one end of each of the pneumatic telescopic rods 14. Clamping plates 9 are slidably connected to both sides of the top of the support plate 8.

[0025] During engine assembly, the engine components to be assembled are first placed stably on the support plate 8. Then, the pump 20, installed on one side of the outer wall of the frame 1, is activated. The pump 20 supplies air to multiple pneumatic telescopic rods 14 through two air pipes 13, causing the pneumatic telescopic rods 14 to extend outwards and move the pressing plates 15 at their ends inwards, thus initially clamping and fixing the two sides of the engine. Simultaneously, two second cylinders 11 can be activated to push the clamping plates 9 to slide along the top of the support plate 8, further clamping the front and rear sides of the engine, achieving multi-directional coordinated clamping and improving the comprehensiveness and stability of the clamping. When it is necessary to adjust the engine height... When in use, the support plate 2 can be adjusted up and down via the sliding structure on the lower inner side of the frame 1 to accommodate different specifications or assembly angles. In addition, after clamping, if it is necessary to rotate the engine to facilitate the assembly of parts at different angles, the drive motor 16 can be started. The output shaft of the drive motor 16 drives the rotating rod 19 to rotate through the transmission connection, thereby driving the support plate 8 to rotate as a whole, realizing the angle adjustment of the engine in the horizontal plane, which facilitates efficient assembly operations from different positions by the assembly personnel. Throughout the process, all actions can be automated or semi-automated through the control system, improving the flexibility and ease of use of the fixture.

[0026] Furthermore, each of the two clamping plates 9 has a sliding block 10 fixedly connected to its bottom, and both sliding blocks 10 are slidably connected to the support plate 8 through the sliding groove 12. By fixing the sliding block 10 at the bottom of the clamping plate 9 and slidably connecting it through the sliding groove 12 at the top of the support plate 8, the clamping plate 9 can slide flexibly along its length on the support plate 8, thereby making adaptive adjustments according to the engine's external dimensions. When clamping, it can accurately fit the front and rear sides of the engine, achieving the effect of improving clamping adaptability and clamping stability.

[0027] Furthermore, a second cylinder 11 is fixedly connected to both sides of the support plate 8 by bolts, and the output shaft of the second cylinder 11 passes through one side of the support plate 8. The output shaft of the second cylinder 11 is fixedly connected to one side of the sliding block 10. The second cylinder 11 is fixed to both sides of the support plate 8 by bolts, and the cylinder output shaft is connected to the sliding block 10. The cylinder drives the sliding block 10 to move the clamping plate 9, realizing the automatic clamping and loosening function of the clamping plate 9, thereby improving clamping efficiency and reducing the burden of manual operation.

[0028] Furthermore, a connecting pipe 17 is provided on one side of the frame 1, and both ends of the connecting pipe 17 penetrate the side wall of the frame 1. The two ends of the two connecting pipes 17 are respectively connected to one side of the two air pipes 13. A control valve 18 is installed on both ends of the connecting pipe 17. One end of the connecting pipe 17 is connected to the connection port of the pump body 20. The connecting pipe 17 connects the pump body 20 and the air pipe 13. The control valve 18 is installed on the connecting pipe 17 to control the opening and closing of the air circuit and the flow distribution, so as to ensure that the pressure of the pneumatic telescopic rod 14 is stable and the response is rapid during the clamping process, thereby improving the clamping accuracy and system controllability.

[0029] Furthermore, sliders 4 are fixedly connected to both sides of the bearing plate 2, and both sliders 4 are slidably connected to the side wall of the frame 1 through the slide groove 5. The sliders 4 are fixed to both sides of the bearing plate 2, and the slide groove 5 on the inner side of the frame 1 realizes the up and down sliding guidance, so that the bearing plate 2 is more stable and smooth during the up and down adjustment process, and achieves the effect of improving the adjustment accuracy and the overall running stability of the fixture.

[0030] Furthermore, side plates 3 are fixedly connected to one side of each of the two sliders 4, and top plates 6 are fixedly connected to both sides of the upper part of the frame 1. The tops of the two top plates 6 are fixedly connected to the first cylinders 7 by bolts. The output shaft of the first cylinder 7 passes through the top of the top plate 6 and the side plate 3 and is fixedly connected. The side plate 3 is fixed on the slider 4, and the top plate 6 is installed on the upper part of the frame 1. The output shaft of the first cylinder 7 is connected to the side plate 3. The cylinder drives the bearing plate 2 to move up and down as a whole, thereby realizing the automatic adjustment function of the engine height direction, which improves the adaptability of the fixture and meets the needs of different assembly heights.

[0031] In summary:

[0032] During engine assembly, the engine components to be assembled are first placed stably on the support plate 8. Then, the pump body 20, which is installed on one side of the outer wall of the frame 1 and fixedly connected with bolts, is activated. The pump body 20 supplies air to multiple pneumatic telescopic rods 14 through two air pipes 13, causing the pneumatic telescopic rods 14 to extend outward and drive the pressing plate 15, which is fixedly connected to its end, to move inward, thereby initially clamping and fixing the two sides of the engine. At the same time, the second cylinder 11, which is set on both sides of the support plate 8 and fixedly connected with bolts, can also be activated. The output shaft of this cylinder passes through the support plate 8 and is fixedly connected to one side of the sliding block 10, thereby pushing the sliding block 10. The moving block 10 slides along the sliding groove 12 set on the top of the support plate 8, thereby driving the clamping plate 9 fixedly connected to it to move synchronously, realizing further clamping operation on the front and rear sides of the engine, forming multi-directional coordinated clamping, and improving the comprehensiveness and stability of clamping; when it is necessary to adjust the height position of the engine to adapt to the needs of different specifications or assembly angles, it can be adjusted up and down through the sliding structure between the slider 4 fixedly connected to both sides of the bearing plate 2 and the sliding groove 5 set on the inner side of the frame 1. At the same time, top plates 6 are provided on both sides of the upper part of the frame 1, and the top of the top plate 6 is fixedly connected to the first cylinder 7 by bolts. The output shaft of the cylinder passes through the top plate. 6. It is connected to the side plate 3 fixed to one side of the slider 4. The first cylinder 7 drives the side plate 3 to drive the slider 4 to move up and down along the slide groove 5, thereby realizing the overall height adjustment function of the bearing plate 2 and its supporting structure above it; In addition, when the clamping is completed and the engine needs to be rotated to facilitate the assembly of parts at different angles, the drive motor 16 fixed to one side of the bottom of the bearing plate 2 by bolts can be started. The output shaft of the motor drives the rotating rod 19 to rotate through the transmission connection. The bottom end of the rotating rod 19 passes through the bearing plate 2 and is fixedly connected to the bottom of the support plate 8, thereby driving the entire support plate 8 and the engine assembly to rotate together, realizing the water... The in-plane angle adjustment facilitates efficient assembly operations from different angles for assembly personnel. To ensure the stability and controllability of the gas supply, a connecting pipe 17 is installed throughout the system. Both ends of the connecting pipe 17 penetrate the side wall of the frame 1 and are interconnected with two air pipes 13. Control valves 18 are installed at both ends of the connecting pipe 17 to control the on / off state of the air path and the flow distribution, ensuring rapid response and uniform pressure of the pneumatic telescopic rod 14 during clamping, thus improving clamping accuracy and system controllability. All actions can be automated or semi-automated through the control system, greatly enhancing the operational flexibility and ease of use of the fixture.By combining the pneumatic telescopic rod 14 and the compression plate 15, along with components such as the pump body 20, air pipe 13, connecting pipe 17, and control valve 18, rapid and uniform clamping of both sides of the engine can be achieved, effectively solving the problems of unstable clamping and uneven clamping force distribution in traditional clamps, thus improving the reliability and safety of clamping. Secondly, by setting up a linkage structure of clamping plate 9, sliding block 10, sliding groove 12, and second cylinder 11, clamping plate 9 can flexibly adjust its clamping position according to the engine's external dimensions, and automatically clamp or release via cylinder drive, achieving adaptive adjustment of the clamping process and significantly improving clamping efficiency and adaptability. Thirdly, through the sliders 4 set on both sides of the bearing plate 2 and the frame 1, The sliding groove 5, in conjunction with the structure, provides a stable vertical sliding guide for the support plate 2, ensuring smooth operation and accurate positioning during height adjustment and avoiding clamping failure due to shaking. Furthermore, the linkage design between the first cylinder 7, top plate 6, side plate 3, and slider 4 enables automatic adjustment of the overall engine height, enhancing the fixture's adaptability to different engine models and meeting diverse assembly needs. Finally, the transmission structure of the drive motor 16 and the rotating rod 19 enables horizontal rotation of the support plate 8 and its engine components, greatly facilitating the assembly of parts at different angles, reducing the time and labor intensity of repeated manual adjustments, and improving assembly efficiency and ease of operation.

[0033] The above-disclosed embodiments are merely one or more preferred embodiments of this application and should not be construed as limiting the scope of this application. Those skilled in the art can understand that all or part of the processes for implementing the above embodiments and equivalent changes made in accordance with the claims of this application still fall within the scope of this application.

Claims

1. An automotive engine assembly fixture, comprising a frame, characterized in that, It also includes a support plate that is slidably connected to the lower inner side of the frame, and air pipes are fixedly connected to both sides of the top of the support plate; A pump body is bolted to one side of the outer wall of the frame, and one end of each of the two air pipes is connected to the outlet of the pump body. A support plate is rotatably connected to the top of the bearing plate, and a drive motor is bolted to one side of the bottom of the bearing plate. A rotating rod is fixedly connected to the bottom of the support plate, and the bottom end of the rotating rod passes through the bearing plate and is connected to the output shaft of the drive motor. Several pneumatic telescopic rods are connected to the opposite sides of the two air pipes, and a compression plate is fixedly connected to one end of each pneumatic telescopic rod. Clamping plates are slidably connected to both sides of the top of the support plate.

2. The automotive engine assembly fixture as described in claim 1, characterized in that, Both clamping plates have sliding blocks fixedly connected to their bottoms, and both sliding blocks are slidably connected to the support plate through sliding grooves.

3. The automotive engine assembly fixture as described in claim 2, characterized in that, The support plate has a second cylinder fixedly connected to both sides by bolts, and the output shaft of the second cylinder passes through one side of the support plate, and the output shaft of the second cylinder is fixedly connected to one side of the sliding block.

4. The automobile engine assembly fixture as described in claim 1, characterized in that, A connecting pipe is provided on one side of the frame, and both ends of the connecting pipe penetrate the side wall of the frame. The two ends of the two connecting pipes are respectively connected to one side of the two air pipes. A control valve is installed on both ends of the connecting pipe, and one end of the connecting pipe is connected to the connection port of the pump body.

5. The automobile engine assembly fixture as described in claim 1, characterized in that, Both sides of the support plate are fixedly connected to sliders, and both sliders are slidably connected to the side wall of the frame through a sliding groove.

6. The automobile engine assembly fixture as described in claim 5, characterized in that, Each of the two sliders is fixedly connected to a side plate on one side, and the upper two sides of the frame are fixedly connected to a top plate. The top of each of the two top plates is fixedly connected to a first cylinder by bolts, wherein the output shaft of the first cylinder passes through the top of the top plate and the side plate and is fixedly connected.

Images