Door type engine body machining fixing device

By combining a multi-axis drive system and a sliding plate, the problem of unstable fixing during engine block machining was solved, achieving stable clamping at multiple angles, adapting to the fixing of irregularly shaped engine blocks, and improving the stability and convenience of machining.

CN224674699UActive Publication Date: 2026-08-25SHANXI NORTH HENGTONG POWER SYSTEM CO LTD
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Patent Information

Application Number
CN202521980197.X
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-09-15
Publication Date
2026-08-25
Estimated Expiration
2035-09-15

AI Technical Summary

Technical Problem

Existing engine block machining and fixing devices are unstable in the horizontal direction and are difficult to adapt to irregularly shaped engine blocks.

Method used

A multi-axis drive system is adopted, including a combination of motor and screw. Through the cooperation of threaded slide and sliding plate, the engine body can be fixed in multiple directions. The motor drives the screw to rotate and move the slide plate. Combined with manual adjustment of the slide and lead screw rotation, multi-angle fixation can be achieved.

Benefits of technology

It achieves stable clamping of the engine block, adapts to the fixing requirements of different shapes, and improves the stability and convenience of the processing.

✦ Generated by Eureka AI based on patent content.

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    Figure CN224674699U_ABST
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Abstract

The utility model relates to a door type structure engine body processing fixing device, including work table, the work table bottom is equipped with four support columns, the work table top is equipped with the sliding slot no.
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Description

Technical Field

[0001] This utility model relates to the field of engine processing technology, specifically a portal frame engine body processing and fixing device. Background Technology

[0002] Engine machining technology is the core process that ensures engine performance, precision, and reliability. It involves multiple precision operations, and key technologies include high-speed milling and boring of cylinder blocks / cylinder heads to ensure the flatness and diameter accuracy of key surfaces; grinding and dynamic balancing of crankshafts to reduce operating vibration; precision grinding of camshafts to ensure valve timing; honing (to improve cylinder wall roughness to optimize lubrication); and laser welding (to achieve high-precision connection of components). It requires CNC equipment and testing technology to strictly control tolerances and meet the requirements of high power, low energy consumption, and long service life of engines.

[0003] Chinese patent discloses an engine body fixing device for engine maintenance (authorization announcement number CN217264542U). This patented technology includes a workbench and two fixing devices symmetrically arranged on both sides of the workbench. A lifting mechanism is located on one side of the workbench. The lifting mechanism includes a lifting groove, with a limit guide rod fixedly connected to the top of the inner wall of the lifting groove. A lifting plate is slidably connected to the limit guide rod, and a lifting platform for driving the engine up and down is fixedly connected to one side of the lifting plate. This patented technology, by setting up a lifting mechanism, facilitates the upward and downward movement of the engine through the up-and-down movement of the lifting platform, making it easier to move the engine to the top of the workbench and transport the engine upwards and downwards. This facilitates both fixing and maintaining the engine at high positions and transporting the engine, making engine maintenance more convenient and labor-saving. However, this patented technology only fixes the engine body in one horizontal direction, which may lead to unstable fixing during actual processing. Therefore, those skilled in the art provide a portal frame structure engine body processing fixing device to solve the problems mentioned in the background art. Utility Model Content

[0004] The purpose of this utility model is to provide a portal frame engine body machining and fixing device to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: A portal frame engine block machining and fixing device includes a worktable with four support columns at the bottom and a sliding groove at the top. Four supports are fixedly connected to the four corners of the top of the worktable, and each support has a top column fixedly connected to it. Two sliding grooves are located within the top column. A motor is fixedly connected to one side of the worktable, and a connecting shaft is rotatably connected to the motor. A screw is fixedly connected to the other end of the connecting shaft and is positioned within the sliding groove.

[0006] As a further embodiment of this utility model: a clamping device is provided on the workbench, the clamping device having two base plates, the first base plate being fixedly connected to the top of the workbench, the second base plate being slidably connected to the top of the workbench, the top of the two base plates having side plates fixedly connected thereto, the top center of the two base plates having a sliding groove three, the bottom end of the second base plate having a threaded sliding member one, the threaded sliding member one being fixedly connected to the bottom end of the second base plate via a connecting slider, the threaded sliding member one being drivenly connected to a screw one, the connecting slider being slidably connected to the sliding groove one, a motor two being fixedly connected to one side of the base plate, the motor two having a connecting shaft two being rotatably connected thereto, the other end of the connecting shaft two having a screw two being fixedly connected thereto, the screw two being placed within the sliding groove three, the sliding groove three having two threaded sliding members two with opposite thread directions being slidably connected thereto, the two threaded sliding members two being drivenly connected to the screw two, the top ends of the two threaded sliding members two having clamping plates fixedly connected thereto.

[0007] As a further embodiment of this utility model: a fixing device is provided between the two top columns, and two sliding plates are provided in the fixing device. Each of the two sliding plates has a sliding element 1 at both ends. The four sliding elements 1 are slidably connected to four sliding grooves 2 respectively. Each of the two sliding plates has a sliding groove 4 on both sides. Each of the two sliding plates has two sliding elements 2. Limiting elements are provided on both sides of the sliding elements 2. The limiting elements are slidably connected to the sliding grooves 4. A lead screw is provided in the middle of the sliding element 2 and is rotatably connected to it. A rotating wheel is provided at the top of the lead screw. A hand crank is provided at the top of the rotating wheel and is rotatably connected to it. A fixing plate is provided at the bottom of the lead screw.

[0008] Compared with the prior art, the beneficial effects of this utility model are: 1. The motor drives the screw to rotate through the drive shaft. The screw remains in a fixed position during rotation, so the threaded slide moves with it, which in turn moves the second base plate at the top of the worktable, so that the two side plates can clamp the left and right sides of the engine body. 2. The two motors drive the connecting shaft to rotate, which in turn drives the screw to rotate, and causes the threaded sliding parts with opposite thread directions to move relative to each other, so that the clamping plate can clamp the front and rear sides of the engine body, further strengthening the fixing effect. 3. Move the sliding plate to the appropriate position and manually adjust the positions of the four sliding parts. Then, crank the hand crank to make the wheel drive the lead screw to rotate, so that the fixing plate can fix the top of the engine body. The positions of the four sliding parts can be adjusted individually, which is also applicable to irregularly shaped bodies. Attached Figure Description

[0009] Figure 1 This is a three-dimensional structural diagram of a portal frame engine body machining and fixing device.

[0010] Figure 2 This is a top view schematic diagram of a portal frame engine body machining and fixing device.

[0011] Figure 3 This is a three-dimensional structural diagram of a portal-type engine block machining and fixing device along a cross-section of slide groove three.

[0012] Figure 4 This is a side view sectional three-dimensional structural diagram of a portal frame engine body machining and fixing device.

[0013] Figure 5 This is a three-dimensional structural diagram of a portal-type engine block machining and fixing device along the cross-section of a sliding plate.

[0014] Figure 6 This is a three-dimensional structural diagram of the fixing device in a portal frame engine body machining fixing device.

[0015] In the diagram: 1-Workbench; 101-Support column; 102-Slide groove one; 103-Support; 104-Top column; 105-Slide groove two; 106-Motor one; 107-Connecting shaft one; 108-Screw one; 2-Clamping device; 201-Base plate; 202-Side plate; 203-Slide groove three; 204-Threaded sliding part one; 205-Connecting slider; 206-Motor two; 207-Connecting shaft two; 208-Screw two; 209-Threaded sliding part two; 210-Clamping plate; 3-Fixing device; 301-Sliding plate; 302-Sliding part one; 303-Slide groove four; 304-Sliding part two; 305-Limiting part; 306-Lead screw; 307-Rotating wheel; 308-Hand crank; 309-Fixing plate. Detailed Implementation

[0016] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0017] Please see Figures 1-6 In this embodiment of the utility model, a portal frame engine body machining and fixing device includes a worktable 1. The bottom of the worktable 1 is provided with four support columns 101. The top of the worktable 1 is provided with a sliding groove 102. Four supports 103 are fixedly connected at the four corners of the top of the worktable 1. The top of each support 103 is provided with a top column 104 fixedly connected to it. The top column 104 is provided with two sliding grooves 105. A motor 106 is provided on one side of the worktable 1 and fixedly connected to it. A connecting shaft 107 is provided in the motor 106 and rotatably connected to it. The other end of the connecting shaft 107 is provided with a screw 108 fixedly connected to it. The screw 108 is placed in the sliding groove 102.

[0018] The workbench 1 is equipped with a clamping device 2, which has two base plates 201. The first base plate 201 is fixedly connected to the top of the workbench 1, and the second base plate 201 is slidably connected to the top of the workbench 1. The top of the two base plates 201 is provided with side plates 202, which are fixedly connected to them. The center of the top of the two base plates 201 is provided with a sliding groove 203. The bottom end of the second base plate 201 is provided with a threaded slide 204, which is fixedly connected to the bottom end of the second base plate 201 through a connecting slider 205. The threaded slide 204 is drivenly connected to the screw 108. The connecting slider 205 is slidably connected to the first slide groove 102. A second motor 206 is provided on one side of the base plate 201 and is fixedly connected to it. A second connecting shaft 207 is provided in the second motor 206 and is rotatably connected to it. A second screw 208 is provided at the other end of the second connecting shaft 207 and is fixedly connected to it. The second screw 208 is placed inside the third slide groove 203. Two threaded sliding parts 209 with opposite thread directions are provided in the third slide groove 203 and are slidably connected to it. The two threaded sliding parts 209 are drively connected to the second screw 208. A clamping plate 210 is provided at the top of the two threaded sliding parts 209 and is fixedly connected to them.

[0019] A fixing device 3 is provided between the two top columns 104. The fixing device 3 is provided with two sliding plates 301. Each of the two sliding plates 301 is provided with a sliding element 302 at both ends. The four sliding elements 302 are slidably connected to four sliding grooves 105 respectively. Each of the two sliding plates 301 is provided with a sliding groove 303 on both sides. Each of the two sliding plates 301 is provided with two sliding elements 304. Each sliding element 304 is provided with a limiting element 305 on both sides. The limiting element 305 is slidably connected to the sliding groove 303. A lead screw 306 is provided in the middle of the sliding element 304 and is rotatably connected to it. A rotating wheel 307 is provided at the top of the lead screw 306. A hand crank 308 is provided at the top of the rotating wheel 307 and is rotatably connected to it. A fixing plate 309 is provided at the bottom of the lead screw 306.

[0020] The working principle of this utility model is as follows: First, place the engine block to be processed at the bottom of the first base plate 201. Then, turn on motor 106 to drive the connecting shaft 107 to rotate, which in turn drives the screw 108 to rotate. The screw 108 remains in a fixed position during rotation, so the threaded slide 204 moves with it, which in turn moves the second base plate 201 at the top of the worktable 1 until the two side plates 202 clamp the left and right sides of the engine block. Then, turn on the two motors 206 to drive the connecting shaft 207 to rotate, which in turn drives the screw 208. The rotation of the screw causes the threaded sliding parts 209 with opposite thread directions to move relative to each other, so that the clamping plate 201 can clamp the front and rear sides of the engine body. In addition, in order to ensure stability during the processing, the vertical direction of the engine body needs to be fixed. At this time, the sliding plate 301 is moved to a suitable position, and the positions of the four sliding parts 304 are manually adjusted. Then, the hand crank 308 is turned to make the rotating wheel 307 drive the lead screw 306 to rotate, so that the fixing plate 309 can fix the top of the engine body. The positions of the four sliding parts 304 can be adjusted individually, which is also applicable to irregularly shaped bodies.

[0021] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A portal frame engine block machining and fixing device, comprising a worktable (1), characterized in that, The workbench (1) has four support columns (101) at its bottom end and a slide groove (102) at its top. The workbench (1) has four supports (103) at its four corners at its top end, and a top column (104) at the top of the support (103) is fixedly connected to it. The top column (104) has two slide grooves (105) in it. The workbench (1) has a motor (106) on one side, and a connecting shaft (107) in the motor (106) is rotatably connected to it. The connecting shaft (107) has a screw (108) at the other end, and the screw (108) is placed in the slide groove (102).

2. The portal frame engine block machining and fixing device according to claim 1, characterized in that, The workbench (1) is provided with a clamping device (2), and the clamping device (2) is provided with two base plates (201). The first base plate (201) is fixedly connected to the top of the workbench (1), and the second base plate (201) is slidably connected to the top of the workbench (1). The top of the two base plates (201) is provided with side plates (202) which are fixedly connected to them. The top center of the two base plates (201) is provided with a sliding groove (203).

3. The portal frame engine block machining and fixing device according to claim 2, characterized in that, The bottom end of the second base plate (201) is provided with a threaded slide part (204). The threaded slide part (204) is fixedly connected to the bottom end of the second base plate (201) through a connecting slider (205). The threaded slide part (204) is connected to the screw (108) in a transmission connection. The connecting slider (205) is slidably connected to the slide groove (102). A motor (206) is provided on one side of the base plate (201) and is fixedly connected to it. A connecting shaft (207) is provided in the motor (206) and is rotatably connected to it. The other end of the connecting shaft (207) is provided with a screw (208) and is fixedly connected to it.

4. The portal frame engine block machining and fixing device according to claim 3, characterized in that, The screw 2 (208) is placed inside the slide groove 3 (203). The slide groove 3 (203) is provided with two threaded slide pieces 2 (209) with opposite thread directions and is slidably connected to it. The two threaded slide pieces 2 (209) are connected to the screw 2 (208) in a transmission manner. The top of the two threaded slide pieces 2 (209) is provided with a clamping plate (210) and is fixedly connected to it.

5. The portal frame engine block machining and fixing device according to claim 1, characterized in that, A fixing device (3) is provided between the two top columns (104). The fixing device (3) is provided with two sliding plates (301). Each of the two sliding plates (301) is provided with a sliding element (302) at both ends. The four sliding elements (302) are slidably connected to the four sliding grooves (105) respectively.

6. The portal frame engine block machining and fixing device according to claim 5, characterized in that, Both sides of the two sliding plates (301) are provided with sliding grooves (303), and both sliding plates (301) are provided with two sliding parts (304). Both sides of the sliding parts (304) are provided with limiting parts (305), and the limiting parts (305) are slidably connected to the sliding grooves (303).

7. The portal frame engine block machining and fixing device according to claim 6, characterized in that, The second sliding member (304) is provided with a lead screw (306) in the middle position and is rotatably connected to it. The top end of the lead screw (306) is provided with a rotating wheel (307), the top end of the rotating wheel (307) is provided with a hand crank (308) and is rotatably connected to it. The bottom end of the lead screw (306) is provided with a fixing plate (309).

Citation Information

Patent Citations

  • Engine body fixing device for engine maintenance

    CN217264542U