A crank pin drilling auxiliary tool

Abstract

The utility model relates to the technical field of crank pin processing, concretely to a crank pin drilling auxiliary tool, including three -jaw chuck machining table, annular cover and crank pin, the top welding of annular cover has the locating end cover, the top of locating end cover has established a number of locating holes, one side welding has the cross bar on annular cover outer surface, be provided with the clamping component on the cross bar outer wall. This kind of crank pin drilling auxiliary tool, through the cooperation of three -jaw chuck machining table, annular cover, locating end cover, locating hole, clamping component, cross bar, first clamping rod, second clamping rod and crank pin, the use of this tool directly realizes the marking and positioning of crank pin end head, avoids the traditional method's line drawing, impact and other complicated procedures, is convenient to use, reduces the labor intensity of staff, improves the drilling efficiency and the qualified rate of product, reduces the safety risk to the minimum. Reduce downtime.

Description

Technical Field

[0001] This utility model relates to the field of crank pin machining technology, specifically to an auxiliary tool for drilling crank pins. Background Technology

[0002] In modern manufacturing, crank pins are a key component in mechanical devices, and their precise manufacturing directly affects the overall performance and reliability of the equipment. Every year, with the continuous growth of industrial production demands, a large number of crank pins need to be produced. In this process, drilling the ends of the crank pins is a crucial step in production.

[0003] Traditional crankpin machining methods involve workers first manually marking drilling positions on the end of the crankpin, a time-consuming and error-prone process. Next, workers use a hammer to impact the marked positions to create an initial indentation in the material; this step not only increases labor intensity but also demands significant physical strength and skill from the workers. Finally, drilling is performed. This manual operation is not only inefficient but also significantly increases safety hazards. During impact operations, workers may lose control of the tool due to improper force, resulting in injury. Furthermore, errors generated during manual operation can lead to a lower final product yield, causing additional repairs and rework, further increasing production costs and downtime. These factors combined result in reduced overall economic efficiency.

[0004] Therefore, it is necessary to provide an auxiliary tool for drilling crank pins to solve the above-mentioned technical problems. Utility Model Content

[0005] The purpose of this utility model is to provide an auxiliary tool for drilling crank pins to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: A crank pin drilling auxiliary tool, comprising: The three-jaw chuck machining table, the annular sleeve and the crank pin, the top of the annular sleeve is welded with a positioning end cap, the top of the positioning end cap is provided with several positioning holes, a crossbar is welded to one side of the outer surface of the annular sleeve, and a locking component is provided on the outer wall of the crossbar.

[0007] Preferably, a screw hole is provided on the other side of the outer surface of the annular sleeve, and a fixing bolt is threadedly connected to the annular sleeve through the screw hole.

[0008] Preferably, the locking assembly includes a first locking rod and a second locking rod, with the second locking rod welded to the bottom end of the first locking rod, and the first locking rod welded to the outer wall of the crossbar.

[0009] Preferably, the outer diameter of the second clamp is smaller than the outer diameter of the first clamp.

[0010] Preferably, the crossbar is perpendicular to the first locking bar.

[0011] Preferably, the size of the annular sleeve is adapted to the crank pin.

[0012] Compared with the prior art, the beneficial effects of this utility model are: 1. This utility model utilizes a three-jaw chuck processing table, annular sleeve, positioning end cap, positioning hole, chuck assembly, crossbar, first chuck, second chuck, and crank pin in conjunction. This tool directly marks and positions the crank pin end, avoiding the tedious processes of traditional methods such as drawing lines and impact. It is easy to use, reduces the labor intensity of employees, improves drilling efficiency and product qualification rate, and minimizes safety risks. It also reduces downtime, thereby significantly improving overall production and economic benefits.

[0013] 2. This utility model, through the combined use of fixing bolts and screw holes, effectively limits and fixes the annular sleeve at the end of the crank pin, making the position of the auxiliary tool more stable during subsequent drilling operations and effectively preventing the tool from moving during drilling. This significantly improves the stability and reliability of the tool, providing a more precise and stable operating basis for drilling operations. Attached Figure Description

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

[0015] Figure 2 This is a schematic diagram of the crank pin in the machining state of this utility model.

[0016] Figure 3 This is a schematic diagram of the connection structure between the annular sleeve and the fixing bolt in this utility model.

[0017] Figure 4 This is a schematic diagram of the positioning end cap in this utility model.

[0018] In the diagram: 1. Three-jaw chuck machining table; 2. Ring sleeve; 3. Positioning end cap; 4. Positioning hole; 5. Fixing bolt; 6. Clamping assembly; 7. Crossbar; 8. First clamping rod; 9. Second clamping rod; 10. Crank pin; 11. Screw hole. Detailed Implementation

[0019] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0020] In the description of this utility model, it should be noted that the terms "upper," "lower," "inner," "outer," "front end," "rear end," "both ends," "one end," and "the other end," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0021] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," and "connected," etc., should be interpreted broadly. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0022] 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.

[0023] Please see Figures 1-4 One embodiment provided by this utility model: A crank pin drilling auxiliary tool, comprising: The three-jaw chuck processing table 1, the annular sleeve 2 and the crank pin 10, the top of the annular sleeve 2 is welded with a positioning end cap 3, the top of the positioning end cap 3 is provided with several positioning holes 4, a crossbar 7 is welded to one side of the outer surface of the annular sleeve 2, and a locking component 6 is provided on the outer wall of the crossbar 7.

[0024] A screw hole 11 is provided on the other side of the outer surface of the annular sleeve 2, and a fixing bolt 5 is threadedly connected to the annular sleeve 2 through the screw hole 11.

[0025] In one embodiment, the locking component 6 includes a first locking rod 8 and a second locking rod 9, with the second locking rod 9 welded to the bottom end of the first locking rod 8 and the first locking rod 8 welded to the outer wall of the crossbar 7, thereby limiting the tool during use and ensuring the accuracy and safety of the operation.

[0026] In one preferred embodiment, the outer diameter of the second lever 9 is smaller than that of the first lever 8, which makes it easier for the operator to apply force when pressing the second lever 9, thereby improving the comfort and efficiency of the operation.

[0027] In one embodiment, the crossbar 7 is perpendicular to the first clamping bar 8, so that the clamping assembly 6 is parallel to the annular sleeve 2. The operator can easily press the second clamping bar 9 onto the side of the clamping block at a certain position on the three-jaw chuck processing table 1 to better limit the auxiliary tool.

[0028] In one preferred embodiment, the size of the annular sleeve 2 is adapted to the crank pin 10 to ensure that the annular sleeve 2 can be securely fitted onto the top of the crank pin 10 while maintaining proper sealing and positioning accuracy.

[0029] The working principle of this utility model is as follows: In use, the crank pin 10 is first fixed on the three-jaw chuck machining table 1, and then the annular sleeve 2 on the tool is directly fitted onto the top of the crank pin 10, so that the bottom of the positioning end cap 3 directly abuts against the top of the crank pin 10. At this time, the position of the positioning hole 4 is the position to be drilled at the top of the crank pin 10. After the tool is fitted onto the top of the crank pin 10, the annular sleeve 2 is rotated by the crossbar 7. The movement of the crossbar 7 drives the second clamping rod 9 to move through the first clamping rod 8, so that the second clamping rod 9 abuts against a clamping block at a certain position on the three-jaw chuck machining table 1. On the side, the worker holds the clamping block while pressing the second locking lever 9 with their thumb to ensure the stability of the tool on the top of the crank pin 10. Once everything is ready, the external drilling mechanism can be controlled to slowly drill the top of the crank pin 10 through the positioning hole 4 on the positioning end cover 3. The use of this tool directly marks and positions the end of the crank pin 10, avoiding the tedious processes of traditional methods such as drawing lines and impact. It is easy to use, reduces the labor intensity of employees, improves drilling efficiency and product qualification rate, and minimizes safety risks. It also reduces downtime, thereby significantly improving overall production efficiency and economic benefits.

[0030] After the tool is fitted onto the end of the crank pin 10, the fixing bolt 5 can be screwed into the threaded hole 11, with one end of the fixing bolt 5 passing through the threaded hole 11 and entering the interior of the annular sleeve 2 to abut against the outer wall of the end of the crank pin 10. This effectively limits and fixes the annular sleeve 2 at the end of the crank pin 10, making the position of the auxiliary tool more stable during subsequent drilling operations and effectively preventing the tool from moving during drilling. This significantly improves the stability and reliability of the tool, providing a more precise and stable operating basis for drilling operations.

[0031] It is worth noting that the crank pin drilling auxiliary tool of this utility model exists in a complete set during use. The complete set of tools includes ring sleeves 2 of different sizes, positioning end caps 3 and positioning holes 4, and positioning end caps 3 with different numbers of positioning holes 4. These tools of different sizes are used to drill crank pins 10 of different specifications to meet the drilling requirements of crank pins 10 of different specifications.

[0032] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely preferred examples and are not intended to limit the utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A crank pin drilling auxiliary tool, characterized in that, It includes: The three-jaw chuck processing table (1), the annular sleeve (2) and the crank pin (10) are provided. The top of the annular sleeve (2) is welded with a positioning end cap (3). The top of the positioning end cap (3) is provided with several positioning holes (4). A crossbar (7) is welded to one side of the outer surface of the annular sleeve (2). A locking component (6) is provided on the outer wall of the crossbar (7).

2. The crank pin drilling auxiliary tool according to claim 1, characterized in that: A screw hole (11) is provided on the other side of the outer surface of the annular sleeve (2), and a fixing bolt (5) is threadedly connected to the annular sleeve (2) through the screw hole (11).

3. The crank pin drilling auxiliary tool according to claim 1, characterized in that: The locking assembly (6) includes a first locking rod (8) and a second locking rod (9), and the second locking rod (9) is welded to the bottom end of the first locking rod (8), and the first locking rod (8) is welded to the outer wall of the crossbar (7).

4. The crank pin drilling auxiliary tool according to claim 3, characterized in that: The outer diameter of the second lever (9) is smaller than the outer diameter of the first lever (8).

5. The crank pin drilling auxiliary tool according to claim 3, characterized in that: The crossbar (7) is perpendicular to the first locking bar (8).

6. The crank pin drilling auxiliary tool according to claim 1, characterized in that: The size of the annular sleeve (2) is adapted to the crank pin (10).

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