Adjustable structure for assisting tool setting

Abstract

The utility model relates to the technical field of crankshaft drilling processing, especially to a supplementary tool setting adjustable structure, including spindle, the core rod connected in spindle inside, the inner bushing connected in the core rod outside, the nut connected in the core rod outside, the spindle includes the shaft body, the recess that sets up in the left side of shaft body, sets up the core groove in the right side of shaft body, the core rod includes the core rod pole, sets up the threaded rod of core rod pole outside, the inner bushing includes fixed cover, sets up the thread groove in fixed cover top surface. The utility model through the inner bushing and drilling spindle connection and the core rod and the inner bushing through the thread connection and the core rod and the inner bushing through the thread connection and reach adjustable purpose realized fast adjustment and fixed drill bit, reduced the time of replacing drill bit, improved the processing efficiency, its adjustable nature makes different model drill bit to be able to easily adapt, expands the use scene of equipment, and the fastening effect of nut ensures the stability in the processing process.

Description

Technical Field

[0001] This utility model relates to the field of crankshaft drilling technology, specifically to an adjustable auxiliary tool setting structure. Background Technology

[0002] During the crankshaft manufacturing process, the main journal of the crankshaft needs to be drilled to facilitate subsequent connection. Currently, in the traditional crankshaft manufacturing process, replacing and disassembling the old drill bit, installing the new drill bit, and recalibrating are time-consuming and rely on manual labor. This requires operators to have a high level of technical skill, making it difficult to ensure the alignment accuracy between the drill bit and the main journal. As a result, the processed products have large deviations and low precision in subsequent processing, reducing economic efficiency. Utility Model Content

[0003] In order to overcome the problem that in the production and processing of crankshafts, the replacement and disassembly of old drill bits and the installation of new drill bits rely on manual skills, which makes it difficult to ensure the alignment accuracy between the drill bit and the spindle, resulting in large deviations in the processed products, slow progress, and reduced economic benefits in subsequent processing.

[0004] The present invention provides an adjustable tool setting structure, comprising a spindle, a mandrel connected to the inner side of the spindle, an inner bushing connected to the outer side of the mandrel, and a nut connected to the outer side of the mandrel.

[0005] The main shaft includes a shaft body, a groove on the left side of the shaft body, and a core groove on the right side of the shaft body.

[0006] The mandrel includes a mandrel rod and a threaded rod disposed on the outside of the mandrel rod;

[0007] The inner sleeve includes a fixed sleeve and a threaded groove formed on the top surface of the fixed sleeve.

[0008] Preferably, the threaded groove is a through groove that extends from top to bottom.

[0009] Preferably, the core groove is a through groove that extends from top to bottom.

[0010] Preferably, the outer side of the fixing sleeve is provided with threads.

[0011] Preferably, the right side of the core groove is provided with threads.

[0012] Preferably, the thread on the outer side of the retaining sleeve matches the thread on the right side of the core groove.

[0013] Compared with the prior art, this utility model provides an adjustable structure for auxiliary tool setting, which has the following beneficial effects:

[0014] 1. This utility model achieves quick adjustment and fixation of the drill bit by connecting the inner bushing to the drilling spindle and the mandrel to the inner bushing via a threaded connection, thereby reducing the time for changing drill bits and improving processing efficiency. Its adjustability allows for easy adaptation to different models of drill bits, expanding the application scenarios of the equipment. At the same time, the tightening effect of the nut ensures the stability during the processing. The operation is simple and reduces the skill level requirements for operators.

[0015] 2. This utility model uses a mandrel connected to an inner bushing via threads, and the inner bushing is then connected to the spindle via threads, forming an adjustable linkage system. When the drill bit needs to be changed, the mandrel position can be adjusted by loosening the nut, and the nut can be tightened again after tool setting. The optimization of the mechanical structure significantly improves the tool changing efficiency, accuracy, and safety of crankshaft drilling, while also reducing production and maintenance costs. Attached Figure Description

[0016] Figure 1 This is a cross-sectional structural diagram of the present invention;

[0017] Figure 2 This is a schematic diagram of the cross-sectional structure of the main shaft of this utility model;

[0018] Figure 3 This is a schematic diagram of the mandrel structure of this utility model;

[0019] Figure 4 This is a schematic diagram of the inner liner structure of this utility model. Figure 1 ;

[0020] Figure 5 This is a schematic diagram of the inner liner structure of this utility model. Figure 2 .

[0021] In the diagram: 1. Spindle; 101. Shaft body; 102. Groove; 103. Core groove; 2. Core rod; 201. Core rod rod; 202. Threaded rod; 3. Inner bushing; 301. Fixing sleeve; 302. Threaded groove; 4. Nut. Detailed Implementation

[0022] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0023] An adjustable auxiliary tool setting structure, according to Figures 1-4 As shown, it includes a main shaft 1, a mandrel 2 connected to the inside of the main shaft 1, an inner bushing 3 connected to the outside of the mandrel 2, and a nut 4 connected to the outside of the mandrel 2.

[0024] The spindle 1 includes a shaft body 101, a groove 102 formed on the left side of the shaft body 101, and a core groove 103 formed on the right side of the shaft body 101;

[0025] The mandrel 2 includes a mandrel rod 201 and a thread 202 disposed on the outside of the mandrel rod 201;

[0026] The inner sleeve 3 includes a fixed sleeve 301 and a threaded groove 302 formed on the top surface of the fixed sleeve 301.

[0027] according to Figure 5 As shown, the threaded groove 302 is a through groove that runs from top to bottom.

[0028] It should be noted that the inner bushing 3 is threadedly connected to the mandrel 2 via the threaded groove 302.

[0029] according to Figures 1-2 As shown, the core groove 103 is a through groove that runs from top to bottom.

[0030] It should be noted that the mandrel 2, which is threaded to the inner bushing 3, can be placed inside the mandrel groove 103, and the inner bushing 3 can be connected to the main shaft 1 via the thread on the outer side of the inner bushing 3.

[0031] according to Figure 1 As shown, the outer side of the fixing sleeve 301 is provided with threads.

[0032] It should be noted that the threaded connection allows for easy adjustment of the mandrel 2 and inner bushing 3, reducing drill bit change time and improving processing efficiency.

[0033] according to Figures 1-2 As shown, the right side of the core groove 103 is provided with a thread.

[0034] It should be noted that the thread on the right side of the core groove 103 allows the fixing sleeve 301 to be quickly connected, and the nut 4 can be installed for fixation after the connection is completed.

[0035] according to Figure 1 As shown, the thread on the outer side of the fixing sleeve 301 matches the thread on the right side of the core groove 103.

[0036] It should be noted that the thread of the threaded rod 202 matches the threaded groove 302, thereby enabling the inner bushing 3 to be quickly connected to the spindle 1 and the mandrel 2. When adjustments are needed, the fastening nut 4 can be loosened, and the position of the mandrel 2 can be adjusted to quickly change to different models of drill bits.

[0037] The embodiments of the present invention have been described in detail above with reference to the accompanying drawings. However, the present invention is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present invention.

Claims

1. An adjustable auxiliary tool setting structure, characterized in that: Includes a main shaft (1), a mandrel (2) connected to the inside of the main shaft (1), an inner bushing (3) connected to the outside of the mandrel (2), and a nut (4) connected to the outside of the mandrel (2); The main shaft (1) includes a shaft body (101), a groove (102) opened on the left side of the shaft body (101), and a core groove (103) opened on the right side of the shaft body (101); The mandrel (2) includes a mandrel rod (201) and a threaded rod (202) disposed on the outside of the mandrel rod (201); The inner sleeve (3) includes a fixed sleeve (301) and a threaded groove (302) formed on the top surface of the fixed sleeve (301).

2. The adjustable auxiliary tool setting structure according to claim 1, characterized in that: The threaded groove (302) is a through groove that runs from top to bottom.

3. The adjustable auxiliary tool setting structure according to claim 1, characterized in that: The core groove (103) is a through groove that runs vertically through the top and bottom.

4. The adjustable auxiliary tool setting structure according to claim 1, characterized in that: The outer side of the fixing sleeve (301) is provided with threads.

5. The adjustable auxiliary tool setting structure according to claim 1, characterized in that: The right side of the core groove (103) is provided with threads.

6. The adjustable auxiliary tool setting structure according to claim 1, characterized in that: The thread on the outside of the fixed sleeve (301) matches the thread on the right side of the core groove (103).

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