Positioning jig for tapping of large rotating shaft

Abstract

The utility model relates to the technical field of processing and positioning, and discloses a positioning jig for large rotating shaft trepanning, which comprises a positioning tool, the positioning tool comprises a bottom plate, the right side of the upper end of the bottom plate is fixedly connected with a fastening assembly, and the fastening assembly comprises a second mounting frame. The front side and the rear side of the upper end of the second mounting frame are fixedly connected with second triangular plates, the right ends of the second triangular plates are fixedly mounted on the left side of the mounting plate, the right end of the mounting plate is fixedly connected with a Y-shaped support, the upper end of the Y-shaped support is fixedly connected with an air cylinder, and the left driving end of the air cylinder is fixedly connected with a C-shaped frame. The front end and the rear end of the C-shaped frame are in threaded connection with first fastening bolts. According to the positioning jig for drilling of the large rotating shaft, through the supporting assembly and the fastening assembly at the upper end of the bottom plate, the large rotating shaft body is supported and limited in the drilling process of the large rotating shaft body, and accurate drilling of the large rotating shaft body is facilitated.

Description

Technical Field

[0001] The utility model relates to the technical field of processing positioning, in particular to a positioning fixture for opening holes in a large rotating shaft. Background Art

[0002] In the fields of modern mechanical manufacturing and industrial production, as a key transmission component and support structure, large rotating shafts are widely used in many important equipment, such as large mechanical equipment, heavy industrial equipment, ship propulsion systems, etc. Large rotating shafts usually need to be precisely drilled to meet the requirements of installing accessories, connecting other components, or achieving specific functions. However, in the traditional process of opening holes in large rotating shafts, many technical problems are faced. On the one hand, due to the large size and heavy weight of large rotating shafts, their fixation and positioning are relatively difficult. Traditional positioning methods may not provide sufficient stability and accuracy, resulting in easy deviation during the hole opening process, affecting the position accuracy and size accuracy of the holes. On the other hand, the materials of large rotating shafts are often relatively special and have high hardness, which also correspondingly increases the requirements for hole opening tools and positioning jigs. Traditional positioning jigs may not be able to adapt to the material characteristics of large rotating shafts, and are prone to wear or damage during the positioning process, affecting the accuracy of positioning and the service life of the jigs. Summary of the Utility Model

[0003] The main purpose of the utility model is to provide a positioning fixture for opening holes in a large rotating shaft, which can effectively solve the problems in the background art.

[0004] To achieve the above purpose, the technical solution adopted by the utility model is as follows:

[0005] A positioning fixture for opening holes in a large rotating shaft includes a positioning jig. A large rotating shaft main body is fixedly installed at the upper end of the positioning jig. Installation positioning holes are symmetrically opened at both the upper and lower ends of the large rotating shaft main body. The positioning jig includes a bottom plate. A fastening component is fixedly connected to the right side of the upper end of the bottom plate. A support component is fixedly connected to the left end of the upper end of the bottom plate. The fastening component includes a second installation frame. Triangular plates are fixedly connected to the front and rear sides of the upper end of the second installation frame. The right ends of the triangular plates are fixedly installed on the left side of an installation plate. A Y-shaped bracket is fixedly connected to the right end of the installation plate. Cylinders are fixedly connected to the upper ends of the Y-shaped brackets. The left driving ends of the cylinders are fixedly connected to a C-shaped frame. Fastening bolts I are threadedly connected to the front and rear ends of the C-shaped frame.

[0006] Preferably, the right end of the large rotating shaft main body is in contact with the side close to the triangular plates II.

[0007] Preferably, the lower ends of the fastening bolts I are inserted into the internal of the installation positioning holes.

[0008] Preferably, the support assembly includes a first mounting frame. Triangular plates are fixedly connected to the front and rear sides of the upper end of the first mounting frame. The upper ends of the triangular plates are all threadedly connected with second fastening bolts, and the upper ends of the second fastening bolts are arranged inside the front and rear ends of the fastening plate.

[0009] Preferably, the left end of the main body of the large rotating shaft is in contact with the side of the triangular plate close to it.

[0010] Preferably, the lower end of the fastening plate is in contact with the upper end of the main body of the large rotating shaft.

[0011] Compared with the prior art, the utility model has the following beneficial effects:

[0012] Through the support assembly and the fastening assembly on the upper end of the bottom plate, the support and limitation of the main body of the large rotating shaft are realized during the drilling process, which is convenient for accurately drilling the main body of the large rotating shaft. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is the first front view three-dimensional schematic diagram of the assembly positioning of a positioning fixture for opening holes in a large rotating shaft of the utility model;

[0014] Figure 2 It is the second front view three-dimensional schematic diagram of the assembly positioning of a positioning fixture for opening holes in a large rotating shaft of the utility model;

[0015] Figure 3 It is the first front view three-dimensional schematic diagram of a positioning fixture for opening holes in a large rotating shaft of the utility model;

[0016] Figure 4 It is the second front view three-dimensional schematic diagram of a positioning fixture for opening holes in a large rotating shaft of the utility model;

[0017] Figure 5 It is the partial three-dimensional schematic diagram of the large rotating shaft of a positioning fixture for opening holes in a large rotating shaft of the utility model.

[0018] In the figure: 1, positioning tooling; 101, bottom plate; 102, first mounting frame; 103, triangular plate; 104, second fastening bolt; 105, fastening plate; 106, second mounting frame; 107, triangular plate; 108, mounting plate; 109, Y-shaped bracket; 1010, cylinder; 1011, C-shaped frame; 1012, first fastening bolt; 2, main body of large rotating shaft; 3, mounting positioning hole. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0019] In order to make the technical means, creative features, achieved purposes and effects of the utility model easy to understand, the utility model will be further described below in conjunction with specific embodiments.

[0020] Such as Figures 1-5As shown in the figure, a positioning fixture for opening holes in a large rotating shaft includes a positioning tooling 1. A large rotating shaft main body 2 is fixedly installed at the upper end of the positioning tooling 1. Installation positioning holes 3 are symmetrically opened at both the upper and lower ends of the large rotating shaft main body 2. The positioning tooling 1 includes a bottom plate 101. A fastening assembly is fixedly connected to the right side of the upper end of the bottom plate 101. A support assembly is fixedly connected to the left end of the upper end of the bottom plate 101. The fastening assembly includes a second mounting bracket 106. Triangular plates 107 are fixedly connected to both the front and rear sides of the upper end of the second mounting bracket 106. The right ends of the triangular plates 107 are fixedly installed on the left side of a mounting plate 108. A Y-shaped bracket 109 is fixedly connected to the right end of the mounting plate 108. Cylinders 1010 are fixedly connected to the upper ends of the Y-shaped brackets 109. The left driving ends of the cylinders 1010 are fixedly connected to a C-shaped frame 1011. First fastening bolts 1012 are threadedly connected to both the front and rear ends of the C-shaped frame 1011.

[0021] In this embodiment, the right ends of the large rotating shaft main body 2 are in contact with the sides of the triangular plates 107 close to them. The lower ends of the first fastening bolts 1012 are inserted into the installation positioning holes 3.

[0022] Specifically, insert the driving end of the driving tooling into the left end interior of the large rotating shaft main body 2. Start the driving tooling to drive the large rotating shaft main body 2 to rotate. When the installation positioning hole 3 rotates to the upper end of the front triangular plate 107, start the front cylinder 1010 to drive the front C-shaped frame 1011 to move leftward and insert the first fastening bolt 1012 into the installation positioning hole 3 to limit the large rotating shaft main body 2. Start the hole punching tooling to open a hole in the upper end of the large rotating shaft main body 2. After the hole in the upper end of the large rotating shaft main body 2 is successfully opened, pull out the front first fastening bolt 1012. Start the cylinder 1010 to drive the front C-shaped frame 1011 to move rightward and make the rear C-shaped frame 1011 move leftward. Start the driving tooling to drive the front end of the large rotating shaft main body 2 to move to the upper end. At this time, the installation positioning hole 3 at the upper front side rotates to the upper rear side, and the installation positioning hole 3 at the lower rear side rotates to the lower front side. Limit the large rotating shaft main body 2 with the rear first fastening bolt 1012. After the hole punching is completed, repeat the operation until all the holes on the outer periphery of the large rotating shaft main body 2 are punched. Through the support assembly and the fastening assembly on the upper end of the bottom plate 101, support and limit of the large rotating shaft main body 2 are realized during the hole punching process, facilitating precise hole punching of the large rotating shaft main body 2.

[0023] In this embodiment, the support assembly includes a first mounting bracket 102. Triangular plates 103 are fixedly connected to both the front and rear sides of the upper end of the first mounting bracket 102. Second fastening bolts 104 are threadedly connected to the upper ends of the triangular plates 103. The upper ends of the second fastening bolts 104 are arranged inside the front and rear ends of a fastening plate 105. The left ends of the large rotating shaft main body 2 are in contact with the sides of the triangular plates 103 close to them. The lower end of the fastening plate 105 is in contact with the upper end of the large rotating shaft main body 2.

[0024] Specifically, place the main body 2 of the large rotating shaft on the upper end of the positioning tooling 1, and install the fastening plate 105 on the upper end of the first triangular plate 103 through the second fastening bolt 104 until the lower end of the fastening plate 105 fits against the upper left side of the main body 2 of the large rotating shaft.

[0025] Working principle:

[0026] First, place the main body 2 of the large rotating shaft on the upper end of the positioning tooling 1, and install the fastening plate 105 on the upper end of the first triangular plate 103 through the second fastening bolt 104 until the lower end of the fastening plate 105 fits against the upper left side of the main body 2 of the large rotating shaft. Insert the driving end of the driving tooling into the left end inside of the main body 2 of the large rotating shaft, start the driving tooling, and drive the main body 2 of the large rotating shaft to rotate. When the installation positioning hole 3 rotates to the upper end of the second triangular plate 107 at the front side, start the front end cylinder 1010, drive the front C-shaped frame 1011 to move leftward, and insert the first fastening bolt 1012 into the installation positioning hole 3 to limit the main body 2 of the large rotating shaft. Start the drilling tooling to drill a hole in the upper end of the main body 2 of the large rotating shaft. After the hole in the upper end of the main body 2 of the large rotating shaft is successfully drilled, pull out the first fastening bolt 1012 at the front side, start the cylinder 1010, drive the front C-shaped frame 1011 to move rightward, and make the rear C-shaped frame 1011 move leftward. Start the driving tooling to drive the front end of the main body 2 of the large rotating shaft to move to the upper end. At this time, the installation positioning hole 3 at the upper front side rotates to the upper rear side, and the installation positioning hole 3 at the lower rear side rotates to the lower front side. Limit the main body 2 of the large rotating shaft through the first fastening bolt 1012 at the rear side. After drilling is completed, repeat the operation until all the holes are drilled on the outer circumference of the main body 2 of the large rotating shaft. Through the support assembly and fastening assembly on the upper end of the base plate 101, during the drilling process of the main body 2 of the large rotating shaft, the main body 2 of the large rotating shaft is supported and limited, which is convenient for accurately drilling the main body 2 of the large rotating shaft.

[0027] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art of this industry should understand that the present invention is not limited by the above embodiments. What is described in the above embodiments and the specification only illustrates the principle of the present invention. Without departing from the spirit and scope of the present invention, the present invention will have various changes and improvements, and these changes and improvements all fall within the scope of the present invention claimed. The scope of protection claimed by the present invention is defined by the appended claims and their equivalents.

Claims

1. A positioning fixture for opening holes in a large rotating shaft, comprising a positioning tooling (1), characterized in that: The upper end of the positioning tooling (1) is fixedly installed with a large rotating shaft body (2). Installation positioning holes (3) are symmetrically opened at both the upper and lower ends of the large rotating shaft body (2). The positioning tooling (1) includes a bottom plate (101). A fastening component is fixedly connected to the right side of the upper end of the bottom plate (101), and a support component is fixedly connected to the left end of the upper end of the bottom plate (101). The fastening component includes a second mounting frame (106). Triangular plates two (107) are fixedly connected to the front and rear sides of the upper end of the second mounting frame (106). The right ends of the triangular plates two (107) are fixedly installed on the left side of a mounting plate (108). A Y-shaped bracket (109) is fixedly connected to the right end of the mounting plate (108). Air cylinders (1010) are fixedly connected to the upper ends of the Y-shaped brackets (109). The left end driving ends of the air cylinders (1010) are fixedly connected to a C-shaped frame (1011). Fastening bolts one (1012) are threadedly connected to the front and rear ends of the C-shaped frame (1011).

2. The positioning fixture for opening holes in a large rotating shaft according to claim 1, characterized in that: The right ends of the large rotating shaft body (2) are in contact with the sides of the triangular plates two (107) close to them.

3. A positioning jig for opening holes in a large rotating shaft according to claim 1, characterized in that: The lower ends of the fastening bolts one (1012) are inserted into the interiors of the installation positioning holes (3).

4. A positioning jig for opening holes in a large rotating shaft according to claim 1, characterized in that: The support component includes a first mounting frame (102). Triangular plates one (103) are fixedly connected to the front and rear sides of the upper end of the first mounting frame (102). Fastening bolts two (104) are threadedly connected to the upper ends of the triangular plates one (103). The upper ends of the fastening bolts two (104) are arranged inside the front and rear ends of a fastening plate (105).

5. A positioning fixture for large shaft hole opening according to claim 4, characterized in that: The left ends of the large rotating shaft body (2) are in contact with the sides of the triangular plates one (103) close to them.

6. A positioning fixture for opening holes in a large rotating shaft according to claim 4, characterized in that: The lower end of the fastening plate (105) is in contact with the upper end of the large rotating shaft body (2).

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