Precise calibration tool for drilling position of diesel engine cylinder body

Abstract

The utility model relates to the technical field of diesel engines, and discloses a diesel engine cylinder drilling position accurate calibration tool which comprises a workbench and a tool support, the two sides of the tool support are rotationally connected with a first connecting bearing and a second connecting bearing respectively, and the side face of the first connecting bearing is fixedly connected with a first rotating disc. According to the accurate calibration tool for the drilling position of the diesel engine cylinder body, corresponding limiting can be conducted through the attaching relation between the plug pin and the tool support and the threaded connection relation between the plug pin and the positioning screw hole after angle adjustment is completed, and high-precision positioning of the diesel engine cylinder body can be achieved; according to the drilling device, the drilling position accuracy is ensured, the problems that in the prior art, the drilling position precision is low, and the tool adaptability is poor are solved, through the innovative structural design, angle adjustment and downward pressing and pressing operation of the cylinder body are achieved, the drilling device can flexibly adapt to diesel engine cylinder bodies of different models and sizes, and the drilling machining efficiency and quality are improved.

Description

Technical Field

[0001] This utility model relates to the field of diesel engine technology, specifically to a tooling for precise calibration of drilling positions in diesel engine cylinder blocks. Background Technology

[0002] The cylinder block of a diesel engine is the main body of the engine. It connects the cylinders and crankcase into one unit and serves as the supporting skeleton for mounting pistons, crankshafts, and other parts and accessories. The cylinder block is usually made of gray cast iron or aluminum and their alloys, which have sufficient strength and good castability.

[0003] However, in actual operation, the inventors found that the following problems still exist: In the machining process of diesel engine cylinder blocks, the drilling process is an extremely critical step. The positional accuracy of the numerous holes on the cylinder block, such as piston cylinder holes and bolt mounting holes, directly affects the overall performance and reliability of the engine. However, the existing diesel engine cylinder block drilling tooling has problems. Some existing tooling is complicated to operate when adjusting the drilling angle, cannot quickly adapt to the situation where the cylinder block drilling position is at multiple angles, and is inconvenient to adjust the clamping position of different cylinder blocks, making it difficult to meet diverse production needs.

[0004] Based on this, the present invention provides a tooling for precise calibration of the drilling position of a diesel engine cylinder block. Utility Model Content

[0005] To address the shortcomings of existing technologies, this utility model provides a precision calibration fixture for drilling positions in diesel engine cylinder blocks. It has the advantages of adjustable drilling angles as needed and the ability to adapt to and clamp different cylinder blocks, thus solving the problems mentioned in the background art.

[0006] This utility model provides the following technical solution: a tooling for precise calibration of drilling positions in a diesel engine cylinder block, comprising a worktable and a tooling bracket. A connecting bearing 1 and a connecting bearing 2 are rotatably connected to both sides of the tooling bracket. A turntable 1 is fixedly connected to one side of the connecting bearing 1. A connecting plate is fixedly connected to the other side of the turntable 1. A turntable 2 is fixedly connected to the other side of the connecting plate. A connecting bearing 2 is fixedly connected to the side of the turntable 2. A connecting bolt 3 is threadedly connected to the inside of the connecting plate. A cylinder block adapter frame is threadedly connected to the surface of the threaded teeth of the connecting bolt 3.

[0007] Preferably, a motor bracket is fixedly installed on the left side of the tooling bracket, a drive motor is installed inside the motor bracket, and a connecting bearing is fixedly connected to the output shaft of the drive motor.

[0008] Preferably, the turntable one and turntable two are provided with a plurality of positioning screw holes, and the tooling bracket is provided with insertion holes through both sides. The insertion holes are horizontally aligned with one of the positioning screw holes. A pin is fitted inside the insertion hole, and a pin is threaded inside the positioning screw hole.

[0009] Preferably, a plurality of adjustment holes are provided on both sides of the connecting plate, and a connecting column is fitted inside one set of adjustment holes. A pressure plate is fixedly connected to the top of the connecting column, and the pressure plate is used to press down the cylinder body. A second connecting bolt is fixedly connected to the bottom of the connecting column, and a fastening nut is threaded onto the surface of the second connecting bolt.

[0010] Preferably, both the workbench and the tooling bracket are provided with threaded grooves, and a connecting bolt is threaded into the inside of the threaded groove.

[0011] Preferably, the top of the fastening nut is fitted with a connecting plate.

[0012] Compared with the prior art, the present invention has the following beneficial effects:

[0013] This diesel engine cylinder block drilling position precision calibration fixture, by forming contact between two sets of cylinder block adapter frames and the sides and top surface of the diesel engine cylinder block, and aligning the holes of the cylinder block adapter frames and connecting plates, is installed in a linked manner using connecting bolt three. A pressure plate contacts the top of the diesel engine cylinder block, with the connecting post and connecting bolt two at the bottom of the pressure plate passing through one set of adjustment holes. Pulling connecting bolt two downwards controls the pressure plate to press tightly against the top surface of the diesel engine cylinder block. The limiting is then achieved through the threaded connection between the fastening nut and connecting bolt two. A drive motor can control connecting bearing one to rotate turntable one and the right side of the connecting plate. The connecting bearing two, which is fixedly connected to the turntable two, rotates inside the tooling bracket to complete the angle adjustment. Then, through the fit between the pin and the tooling bracket, and the threaded connection between the pin and the positioning screw hole, corresponding limit is achieved after the angle adjustment. This solution can achieve high-precision positioning of the diesel engine cylinder block, ensure the accuracy of the drilling position, and solve the problems of low drilling position accuracy and poor tooling adaptability in the existing technology. Through innovative structural design, the angle adjustment and pressing operation of the cylinder block can be realized, and it can flexibly adapt to different models and sizes of diesel engine cylinder blocks, improving the efficiency and quality of drilling. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall structure of the device of this utility model;

[0015] Figure 2 This utility model Figure 1 Partial structural diagram;

[0016] Figure 3 This utility model Figure 2 A partial structural diagram.

[0017] In the diagram: 1. Workbench; 2. Tooling bracket; 201. Connecting bolt one; 202. Pin; 3. Turntable one; 301. Positioning screw hole; 302. Connecting plate; 303. Adjusting hole; 304. Pressure plate; 305. Connecting column; 306. Connecting bolt two; 307. Fastening nut; 308. Cylinder body adapter frame; 309. Connecting bolt three; 310. Motor bracket; 311. Drive motor; 312. Connecting bearing one; 4. Turntable two; 401. Connecting bearing two. Detailed Implementation

[0018] 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.

[0019] Please see Figure 1-3A precision calibration fixture for drilling positions in a diesel engine cylinder block includes a worktable 1 and a fixture support 2. Connecting bearing 312 and connecting bearing 401 are rotatably connected to both sides of the fixture support 2. A turntable 3 is fixedly connected to one side of connecting bearing 312, and a connecting plate 302 is fixedly connected to the other side of turntable 3. A turntable 4 is fixedly connected to the other side of turntable 302, and connecting bearing 401 is fixedly connected to the side of turntable 4. A connecting bolt 309 is threaded into the internal part of the connecting plate 302, and a cylinder block adapter frame 308 is threaded onto the surface of the threaded teeth of the connecting bolt 309. The two sets of cylinder block adapter frames 308 are brought into contact with the sides and top surface of the diesel engine cylinder block, and the holes of the cylinder block adapter frames 308 and the connecting plate 302 are aligned. The connecting bolts 309 are used for linkage installation. A pressure plate 304 contacts the top of the diesel engine cylinder block. A connecting post 305 and a connecting bolt 306 at the bottom of the pressure plate 304 pass through one set of adjustment holes 303. Pulling down the connecting bolt 306 controls the pressure plate 304 to press tightly against the upper surface of the diesel engine cylinder block. The threaded connection between the fastening nut 307 and the connecting bolt 306 completes the limiting operation. The drive motor 311 controls the connecting bearing 312 to rotate the turntable 3, and the connecting bearing 401, fixedly connected to the turntable 4 on the right side of the connecting plate 302, rotates inside the tooling bracket 2 to complete the angle adjustment. The engagement between the pin 202 and the tooling bracket 2, and the threaded connection between the pin 202 and the positioning screw hole 301, ensures the corresponding limiting operation after angle adjustment. This solution achieves high-precision positioning of the diesel engine cylinder block, ensuring accurate drilling positions and solving problems such as low drilling position accuracy and poor tooling adaptability in existing technologies. Through innovative structural design, it realizes angle adjustment and pressing operations of the cylinder block, and can flexibly adapt to different models and sizes of diesel engine cylinder blocks, improving drilling efficiency and quality.

[0020] Among them, a motor bracket 310 is fixedly installed on the left side of the tooling bracket 2, and a drive motor 311 is installed inside the motor bracket 310. The output shaft of the drive motor 311 is fixedly connected to a connecting bearing 312.

[0021] Among them, turntable 1 3 and turntable 2 4 are provided with a number of positioning screw holes 301, and the tooling bracket 2 is provided with insertion holes through both sides. The insertion holes are horizontally aligned with one of the positioning screw holes 301. The insertion holes are fitted with pins 202, and the positioning screw holes 301 are threadedly connected to the pins 202.

[0022] The connecting plate 302 has several adjustment holes 303 on both sides. A connecting column 305 is fitted inside one set of adjustment holes 303. A pressure plate 304 is fixedly connected to the top of the connecting column 305. The pressure plate 304 is used to press down the cylinder body. A connecting bolt 306 is fixedly connected to the bottom of the connecting column 305. A fastening nut 307 is threaded onto the surface of the connecting bolt 306.

[0023] Both the workbench 1 and the tooling bracket 2 are provided with threaded grooves. The internal threads of the threaded grooves are connected to connecting bolts 201. Connecting bolts 201 are used to connect the workbench 1 and the tooling bracket 2 into a whole to ensure the overall stability during operation.

[0024] The top of the fastening nut 307 is fitted with a connecting plate 302.

[0025] Working principle: Initial installation is performed between the workbench 1 and the tooling bracket 2 using connecting bolt 201. A corresponding cylinder block adapter frame 308 is selected based on the type of diesel engine cylinder block. The connecting plate 302 is pre-positioned horizontally, and the diesel engine cylinder block is placed on top. The two sets of cylinder block adapter frames 308 are then brought into contact with the sides and top surface of the diesel engine cylinder block, and the holes in the cylinder block adapter frames 308 and connecting plate 302 are aligned. Connecting bolt 309 is then used for linkage installation. The pressure plate 304 contacts the top of the diesel engine cylinder block. The connecting post 305 at the bottom of the pressure plate 304 and connecting bolt 306... By passing through one set of adjustment holes 303, pulling down the connecting bolt 306 controls the pressure plate 304 to press tightly against the upper surface of the diesel engine cylinder block. The limit is then achieved through the threaded connection between the fastening nut 307 and the connecting bolt 306. The drive motor 311 can control the connecting bearing 312 to drive the turntable 3 to rotate, and the connecting bearing 401 fixedly connected to the turntable 4 on the right side of the connecting plate 302 can rotate inside the tooling bracket 2 to complete the angle adjustment. The corresponding limit can be achieved after the angle adjustment is completed by the fit between the pin 202 and the tooling bracket 2 and the threaded connection between the pin 202 and the positioning screw hole 301.

[0026] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0027] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A tooling for precise calibration of drilling positions in a diesel engine cylinder block, characterized in that, The tooling includes a workbench (1) and a tooling bracket (2). A connecting bearing 1 (312) and a connecting bearing 2 (401) are rotatably connected to both sides of the tooling bracket (2). A turntable 1 (3) is fixedly connected to the side of the connecting bearing 1 (312). A connecting plate (302) is fixedly connected to the other side of the turntable 1 (3). A turntable 2 (4) is fixedly connected to the other side of the connecting plate (302). A connecting bearing 2 (401) is fixedly connected to the side of the turntable 2 (4). A connecting bolt 3 (309) is threaded inside the connecting plate (302). A cylinder body adapter frame (308) is threaded on the surface of the thread teeth of the connecting bolt 3 (309).

2. The precision calibration fixture for drilling positions in a diesel engine cylinder block according to claim 1, characterized in that: A motor bracket (310) is fixedly installed on the left side of the tooling bracket (2). A drive motor (311) is installed inside the motor bracket (310). The output shaft of the drive motor (311) is fixedly connected to a connecting bearing (312).

3. The precision calibration fixture for drilling positions in a diesel engine cylinder block according to claim 1, characterized in that: The turntable one (3) and turntable two (4) are provided with a number of positioning screw holes (301). The tooling bracket (2) is provided with insertion holes on both sides. The insertion holes are horizontally aligned with one of the positioning screw holes (301). The insertion holes are fitted with pins (202). The positioning screw holes (301) are threaded with pins (202).

4. The precision calibration fixture for drilling positions in a diesel engine cylinder block according to claim 1, characterized in that: The connecting plate (302) has several adjustment holes (303) on both sides. A connecting column (305) is fitted inside one set of adjustment holes (303). A pressure plate (304) is fixedly connected to the top of the connecting column (305). The pressure plate (304) is used to press down the cylinder body. A connecting bolt (306) is fixedly connected to the bottom of the connecting column (305). A fastening nut (307) is threaded onto the surface of the connecting bolt (306).

5. The precision calibration fixture for drilling positions in a diesel engine cylinder block according to claim 1, characterized in that: Both the workbench (1) and the tooling bracket (2) are provided with threaded grooves, and the internal threads of the threaded grooves are connected to a connecting bolt (201).

6. The precision calibration fixture for drilling positions in a diesel engine cylinder block according to claim 4, characterized in that: The top of the fastening nut (307) is fitted with a connecting plate (302).

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