An engine housing automatic positioning tool

Abstract

The utility model discloses an automatic positioning frock of engine casing, including mounting bracket, the inside of mounting bracket is provided with drive assembly, is provided with two movable racks on drive assembly, and two movable racks all are provided with a plurality of positioning assembly, still include two locking assemblies, and they are located on two movable racks respectively, when working, drive assembly drives two movable racks relative movement, and the multi -point clamping positioning of engine casing is carried out to a plurality of positioning assembly, and the locking assembly locks positioning assembly after engine casing clamping positioning of positioning assembly. The utility model discloses through the cooperation of drive assembly and positioning assembly, can carry out self -adaptation clamping positioning to the irregular surface of engine casing, and through the setting of locking assembly, can lock positioning assembly after engine casing clamping positioning of positioning assembly, avoid the stability of positioning assembly loosening influence its to engine casing clamping positioning.

Description

Technical Field

[0001] This utility model relates to the field of positioning tooling technology, specifically to an automatic positioning tooling for engine housing. Background Technology

[0002] Tooling fixtures are indispensable components in machining. They help ensure the machining accuracy of workpieces, stabilize product quality, improve labor productivity and reduce costs, improve workers' working conditions, ensure safe production, and expand the range of machine tool processes.

[0003] For example, a Chinese patent with authorization announcement number "CN220463020U" and titled "A Fixture for Machining Engine Housings" includes a base plate and a worktable. The worktable is located on the upper end of the base plate, and a machining mechanism is connected to the upper ends of the base plate and the worktable. In use, the electric push rod is first activated, causing the sliding rods at both ends to move along the slide groove. This causes the rotating rod outside the sliding rod to rotate around a circular axis, simultaneously changing the overall height of the rotating rod. When the upper worktable is moved to a height suitable for clamping and fixing the engine housing, the electric push rod is deactivated. The engine housing is then placed between the two clamping plates, and the handle is turned to rotate the two threaded rods together. This causes the moving plate to move along the outer side of the limiting rod until the clamping plates at the upper end of the moving plate contact the two ends of the engine housing, thus fixing the engine housing onto the worktable for machining.

[0004] The shortcomings of the existing technology are: the above-mentioned patent can only clamp and position the flat surfaces at both ends of the engine housing. The clamping at both ends is suitable for processing the side of the engine housing. However, when processing the two ends of the engine housing, it is necessary to clamp and fix the irregular surfaces on the side of the engine housing with positioning fixtures so that the two ends of the engine housing are exposed for processing. However, the fixture in the above-mentioned patent is a single-point clamping fixture. When clamping the irregular surfaces, the contact area between the clamping plate and the engine housing is small, making it difficult to stably clamp and position the irregular surfaces on the side of the engine housing. Utility Model Content

[0005] The purpose of this invention is to provide an automatic positioning fixture for engine housings to address the aforementioned shortcomings in the prior art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: an automatic positioning fixture for engine housing, including a mounting frame, wherein a drive assembly is provided inside the mounting frame, two movable frames are provided on the drive assembly, and multiple positioning components are provided on each of the two movable frames;

[0007] It also includes two locking components, which are respectively mounted on the two movable frames;

[0008] During operation, the drive assembly drives the two moving frames to move relative to each other, and the engine housing is clamped and positioned at multiple points by multiple positioning components. The locking component locks the positioning components after the positioning components have clamped and positioned the engine housing.

[0009] As a further description of the above technical solution: the drive assembly includes two electric telescopic rods and two guide rods fixedly connected to the mounting frame. The telescopic ends of the two electric telescopic rods are fixedly connected to a moving block, and the moving block is slidably sleeved between the two guide rods.

[0010] As a further description of the above technical solution: the two movable frames are fixedly connected to the two movable blocks respectively.

[0011] As a further description of the above technical solution: the positioning component includes a rotating block rotatably mounted on a movable frame, a movable rod is movably inserted inside the rotating block, a positioning block is fixedly connected to one end of the movable rod, and a threaded groove is opened on the outer surface of the movable rod, a guide post is movably connected inside the threaded groove, a spring and a guide rod are fixedly connected to one side of the positioning block, the other end of the spring is fixedly connected to the movable frame, and the spring is sleeved on the outside of the movable rod.

[0012] As a further description of the above technical solution: the guide post is fixedly connected to the rotating block.

[0013] As a further description of the above technical solution: the locking assembly includes an electric telescopic rod II and multiple locking rings. The telescopic end of the electric telescopic rod II is fixedly connected to a locking frame, and the bottom of the locking frame is fixedly connected to multiple locking blocks. The outer surface of the locking rings is provided with several locking grooves. The number of locking rings, locking blocks and rotating blocks are the same and their positions correspond one-to-one.

[0014] As a further description of the above technical solution: the locking block and the locking groove are configured to be adapted to each other in size.

[0015] As a further description of the above technical solution: a limiting ring is movably sleeved on the outer side of the locking frame, and the limiting ring is fixedly installed on the movable frame.

[0016] The advantages of the automatic positioning fixture for engine housing provided by this utility model in the above technical solution are as follows:

[0017] This invention enables adaptive clamping and positioning of an engine housing on irregular surfaces through the cooperation of a drive component and a positioning component. Furthermore, the locking component allows the positioning component to be locked after it has clamped and positioned the engine housing, preventing it from becoming loose and affecting the stability of its clamping and positioning of the engine housing.

[0018] It should be understood that the foregoing general description and the following detailed description are exemplary and illustrative only, and are not intended to limit this disclosure.

[0019] This application provides an overview of various implementations or examples of the technology described in this disclosure, and is not a full disclosure of the entire scope or all features of the disclosed technology. Attached Figure Description

[0020] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this utility model. For those skilled in the art, other drawings can be obtained based on these drawings.

[0021] Figure 1 A schematic diagram of the overall structure provided for an embodiment of this utility model;

[0022] Figure 2 This is a schematic diagram of the structure of guide rod one and guide rod two provided in the embodiments of this utility model;

[0023] Figure 3 This is an exploded view of the structure of the moving rod and rotating block provided in the embodiment of this utility model;

[0024] Figure 4 This is a schematic diagram showing the state of the locking block being inserted into the locking groove according to an embodiment of the present utility model;

[0025] Figure 5 A schematic diagram showing the mounting bracket provided in this embodiment of the utility model installed on a conveyor.

[0026] Explanation of reference numerals in the attached figures:

[0027] 1. Mounting bracket; 11. Moving bracket; 21. Electric telescopic rod one; 22. Guide rod one; 23. Moving block; 31. Rotating block; 32. Moving rod; 33. Positioning block; 34. Threaded groove; 35. Guide column; 36. Spring; 37. Guide rod two; 41. Electric telescopic rod two; 42. Locking ring; 43. Locking frame; 44. Locking block; 45. Locking groove; 46. Limiting ring. Detailed Implementation

[0028] To make the objectives, technical solutions, and advantages of the embodiments of this disclosure clearer, the technical solutions of the embodiments of this disclosure will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this disclosure. All other embodiments obtained by those skilled in the art based on the described embodiments of this disclosure without creative effort are within the scope of protection of this disclosure.

[0029] Please see Figure 1-5 The automatic positioning fixture for engine housing provided in this embodiment includes a mounting frame 1. A drive assembly is provided inside the mounting frame 1. Two movable frames 11 are provided on the drive assembly. Multiple positioning components are provided on each of the two movable frames 11.

[0030] It also includes two locking components, which are respectively mounted on the two movable frames 11;

[0031] During operation, the drive assembly drives the two moving frames 11 to move relative to each other, and the engine housing is clamped and positioned at multiple points by multiple positioning components. The locking component locks the positioning components after the positioning components clamp and position the engine housing.

[0032] In a further embodiment of this utility model, the driving assembly includes two electric telescopic rods 21 and two guide rods 22 fixedly connected to the mounting frame 1. The telescopic ends of the two electric telescopic rods 21 are fixedly connected to a moving block 23. The moving block 23 is slidably sleeved between the two guide rods 22. The guide rods 22 limit the moving block 23 and ensure the stability of the moving block 23 during movement.

[0033] Furthermore, the two movable frames 11 are fixedly connected to the two movable blocks 23 respectively, and the movable blocks 23 drive the movable frames 11 to move synchronously when they move.

[0034] In a further embodiment of this utility model, the positioning component includes a rotating block 31 rotatably mounted on a movable frame 11. A movable rod 32 is movably inserted inside the rotating block 31. One end of the movable rod 32 is fixedly connected to a positioning block 33, and a threaded groove 34 is formed on the outer surface of the movable rod 32. A guide post 35 is movably connected inside the threaded groove 34. The guide post 35 is fixedly connected to the rotating block 31. A spring 36 and a second guide rod 37 are fixedly connected to one side of the positioning block 33. The second guide rod 37 is movably mounted through the movable frame 11 to limit the positioning block 33 and the movable rod 32, thereby improving the stability of the positioning block 33 and the movable rod 32 during movement. The other end of the spring 36 is fixedly connected to the movable frame 11, and the spring 36 is sleeved on the outside of the movable rod 32.

[0035] In a further embodiment of this utility model, the locking assembly includes an electric telescopic rod 41 and multiple locking rings 42. The telescopic end of the electric telescopic rod 41 is fixedly connected to a locking frame 43, and the bottom of the locking frame 43 is fixedly connected to multiple locking blocks 44. The outer surface of the locking rings 42 is provided with a number of locking grooves 45. The number of locking rings 42, locking blocks 44 and rotating blocks 31 are the same and their positions correspond one-to-one. The sizes of the locking blocks 44 and the locking grooves 45 are adapted to each other. After the positioning assembly clamps and positions the engine housing, the extension of the electric telescopic rod 41 drives the locking frame 43 and locking blocks 44 to move down until the locking blocks 44 are inserted into the corresponding locking grooves 45 on the locking rings 42, thereby locking and fixing the rotating blocks 31 so that they cannot rotate. Then, the guide post 35 limits and fixes the moving rod 32 so that it cannot move, thereby ensuring the stability of the position of the positioning block 33. The positioning block 33 will not loosen due to vibration generated during the subsequent processing of the engine housing, which will affect the stability of clamping and positioning the engine housing.

[0036] Furthermore, a limiting ring 46 is movably sleeved on the outer side of the locking frame 43. The limiting ring 46 is fixedly installed on the movable frame 11. The limiting ring 46 plays a limiting role on the locking frame 43, improving the stability of the locking frame 43 during its up and down movement.

[0037] Working principle: During installation, the staff first fixes the engine housing automatic positioning fixture on the conveyor or workbench with bolts;

[0038] When processing the engine housing, the engine housing to be processed is placed between two sets of positioning components. By extending the two electric telescopic rods 21, the two moving blocks 23 are moved to opposite sides, which in turn moves the two moving frames 11 and moves the multiple positioning components on the moving frames 11. When some of the positioning blocks 33 in the positioning components come into contact with the engine housing, they are restricted by the engine housing and cannot continue to move. The remaining positioning blocks 33 that come into contact with the engine housing can continue to move until all the positioning blocks 33 come into contact with the surface of the engine housing, so that the multiple positioning blocks 33 can adaptively extend and retract according to the unevenness of the surface of the engine housing.

[0039] Once the multiple positioning blocks 33 are properly clamped and positioned for the engine housing, the extension of the electric telescopic rod 41 causes the locking frame 43 and locking block 44 to move downwards until the locking block 44 is inserted into the locking groove 45 on the locking ring 42. This locks and fixes the rotating block 31, preventing it from rotating. Furthermore, the guide post 35 limits and fixes the moving rod 32, preventing it from moving. This ensures the stability of the positioning block 33's position and prevents it from loosening due to vibrations generated during subsequent engine housing processing, thus affecting the stability of clamping and positioning the engine housing.

[0040] The foregoing description only illustrates certain exemplary embodiments of the present invention. Undoubtedly, those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. An automatic positioning fixture for engine housing, comprising a mounting bracket (1), characterized in that: The mounting bracket (1) is equipped with a drive assembly, and the drive assembly is equipped with two movable frames (11), each of which is equipped with multiple positioning components. It also includes two locking components, which are respectively mounted on the two movable frames (11); During operation, the drive assembly drives the two moving frames (11) to move relative to each other, and the engine housing is clamped and positioned at multiple points by multiple positioning components. The locking assembly locks the positioning components after the positioning components clamp and position the engine housing.

2. The automatic positioning fixture for engine housing according to claim 1, characterized in that, The drive assembly includes two electric telescopic rods (21) and two guide rods (22) fixedly connected to the mounting frame (1). The telescopic ends of the two electric telescopic rods (21) are fixedly connected to a moving block (23), and the moving block (23) is slidably sleeved between the two guide rods (22).

3. The automatic positioning fixture for engine housing according to claim 2, characterized in that, The two movable frames (11) are fixedly connected to the two movable blocks (23) respectively.

4. The automatic positioning fixture for engine housing according to claim 1, characterized in that, The positioning assembly includes a rotating block (31) rotatably mounted on a movable frame (11), a movable rod (32) is movably inserted inside the rotating block (31), a positioning block (33) is fixedly connected to one end of the movable rod (32), and a threaded groove (34) is opened on the outer surface of the movable rod (32), a guide post (35) is movably connected inside the threaded groove (34), and a spring (36) and a guide rod (37) are fixedly connected to one side of the positioning block (33).

5. The automatic positioning fixture for engine housing according to claim 4, characterized in that, The guide post (35) is fixedly connected to the rotating block (31).

6. The automatic positioning fixture for engine housing according to claim 1, characterized in that, The locking assembly includes an electric telescopic rod (41) and multiple locking rings (42). The telescopic end of the electric telescopic rod (41) is fixedly connected to a locking frame (43). Multiple locking blocks (44) are fixedly connected to the bottom of the locking frame (43). Several locking grooves (45) are opened on the outer surface of the locking rings (42).

7. The automatic positioning fixture for engine housing according to claim 6, characterized in that, The locking block (44) is configured to be adapted to the size of the locking groove (45).

8. The automatic positioning fixture for engine housing according to claim 6, characterized in that, The locking frame (43) is movably fitted with a limiting ring (46) on its outer side.

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