Intermediate shaft machining power transmission device

Abstract

The invention discloses an intermediate shaft processing power transmission device, which comprises a machine tool chuck, a base, a transmission rod and an intermediate shaft main body, the base is provided with a first mounting hole, a second mounting hole and a mounting screw hole, the machine tool chuck is fixedly connected with the base through a locking bolt, the transmission rod comprises a transmission shaft body and a connecting stud, and the transmission shaft body is fixedly connected with the base through the connecting stud. The connecting stud of the transmission rod is in threaded connection with the mounting screw hole of the base, the base is fixedly connected with the transmission rod in a threaded mode, the intermediate shaft body comprises a flange end, and a hole body is formed in the center of the flange end. According to the technical scheme, the novel tool is designed and manufactured, the transmission effect is ideal, compared with an original tool, the influence of idling of an intermediate shaft in the initial movement process is reduced, power transmission is timely, the shaft and a lathe spindle do not have relative movement, the problem that machining is difficult due to uneven transmission force in the shaft machining process is solved, the machining precision of products is guaranteed, and the machining efficiency is improved. Therefore, the product quality and the attractiveness are improved.

Description

Technical Field

[0001] The invention relates to the technical field of ship intermediate shaft processing tooling, and in particular to an intermediate shaft processing power transmission device. Background Art

[0002] Ships are a general term for various vessels. They are vehicles that can sail or anchor in waters for transportation or operations. They are man-made vehicles that mainly operate in geographical waters. Ships have different technical performances, equipment and structural types according to different use requirements, including various types of displacement or non-displacement ships, boats, rafts, seaplanes, submersibles, mobile platforms and other mobile devices on water. The ship's shaft system mainly consists of three parts: transmission shaft (intermediate shaft, thrust shaft, tail shaft or propeller shaft, etc.), bearings (intermediate bearings, thrust bearings and tail shaft bearings, etc.) and shaft system accessories (rigid couplings, shaft system brakes, bulkhead stuffing boxes, etc.). The task of the ship's shaft system is to transmit the power of the main engine to the propeller. At the same time, the axial thrust generated by the rotation of the propeller is transmitted to the hull to drive the ship. There is a certain distance from the main engine to the propeller, and the transmission shaft is used to connect them. In order to facilitate processing, manufacturing, transportation, and disassembly, it is often divided into many shaft sections and connected with couplings to form a ship's shaft system.

[0003] In shipbuilding production, the intermediate shaft is an important and key processing part. During the processing, the dimensional accuracy and shape position accuracy of this shaft are extremely high. In order to ensure the processing quality of the product, the workshop has been trying to improve the product quality through tooling improvements.

[0004] The original workshop used a clamping method to fix the intermediate shaft. This processing method also ensures the shape and position accuracy of the product. However, during the processing, the tooling and the workpiece still have relative movement due to the moment of machine tool startup, and the relative position changes. Although the clamp is lined with copper, copper slag remains on the outer circle of the intermediate shaft flange, which is difficult to clean, resulting in an unsightly appearance of the shaft. Two-center processing must be used when processing the intermediate shaft. Other processing methods cannot ensure that the runout of the workpiece shaft is less than 0.06.

[0005] Therefore, it is necessary to design an intermediate shaft processing power transmission device to solve the above problems. Summary of the invention

[0006] Technical issues solved: In view of the shortcomings of the prior art, the present invention provides a power transmission device for intermediate shaft processing. By designing and manufacturing a new tooling, the transmission effect is relatively ideal. Compared with the original tooling, the influence of the intermediate shaft idling during the initial movement is reduced, the power transmission is timely, and there is no relative movement between the shaft and the lathe spindle. The problem of processing difficulties caused by uneven transmission force during shaft processing is solved, the processing accuracy of the product is guaranteed, and the product quality and aesthetics are improved, thereby solving the technical problems mentioned in the background technology.

[0007] Technical solution: To achieve the above object, the present invention is implemented through the following technical solutions: The camshaft of the embodiment of the present invention is a kind of intermediate shaft processing power transmission device, comprising a machine tool chuck, a base, a transmission rod and an intermediate shaft main body, the base is provided with a first mounting hole, a second mounting hole and a mounting screw hole, the machine tool chuck and the base are fixedly connected by a locking bolt, the transmission rod comprises a transmission shaft body and a connecting stud, the connecting stud of the transmission rod is threadedly connected with the mounting screw hole of the base, the base and the transmission rod are threadedly fixedly connected, the intermediate shaft main body comprises a flange end, a hole body is provided at the center position of the flange end, the base is installed and fixed on the surface of the machine tool chuck, the base and the intermediate shaft main body are connected by the transmission rod, one end of the transmission rod extends into the hole body of the intermediate shaft main body, one end of the intermediate shaft main body is connected to the machine tool chuck, and the other end of the intermediate shaft main body is connected to the tailstock, the tailstock comprises a center, the intermediate shaft main body is clamped by the tailstock and the machine tool chuck, and two centers are used for processing to ensure that the runout of the intermediate shaft main body is within a reasonable range.

[0008] In a possible implementation, the base and the transmission rod are located between the machine tool chuck and the intermediate shaft body, and are used to connect the machine tool chuck and the intermediate shaft body. The machine tool chuck and the intermediate shaft body are connected by the base and the transmission rod, replacing the original clamping clamp to form a new tooling. After the intermediate shaft body is clamped, the outer circle of its flange end is not blocked or contacted by other structural parts, and no copper slag will remain on the outer circle of the flange end of the intermediate shaft body, thereby improving the aesthetics of the intermediate shaft body.

[0009] In a possible implementation, the first mounting hole is located on one side of the base, and the second mounting hole is located on the other side of the base. Two groups of locking bolts are provided for connecting the base and the machine tool chuck, wherein one group of locking bolts passes through the first mounting hole of the base and is fixed by a nut, and the other group of locking bolts passes through the second mounting hole of the base and is fixed by a nut. When installing and fixing the machine tool chuck and the base, the first mounting hole of the base is aligned with the groove body on the machine tool chuck, and the second mounting hole of the base is aligned with the groove body on the machine tool chuck. One group of locking bolts is used to pass through the first mounting hole of the base and is fixed by a nut, and the other group of locking bolts is used to pass through the second mounting hole of the base and is fixed by a nut, so as to achieve the installation and fixation of the base.

[0010] In a possible implementation, the first mounting hole and the second mounting hole have the same aperture size, the mounting screw hole is located in the middle position between the first mounting hole and the second mounting hole, and the first mounting hole and the second mounting hole are symmetrically arranged about the axis of the mounting screw hole, and the mounting screw hole is at the center position of the base.

[0011] In a possible implementation, the transmission shaft and the connecting stud are configured as an integrally formed structure, the transmission shaft and the connecting stud are located on the same axis, and chamfered structures are provided at both ends of the transmission shaft. The integrally formed transmission rod structure has good integrity and high structural strength and rigidity. When used as a transmission component, it can stably transmit power and meet the processing and use requirements of the intermediate shaft body.

[0012] In one possible implementation, an external thread groove is provided on the outer side surface of the connecting stud, and an internal thread groove is provided on the inner side surface of the mounting screw hole. The external thread groove of the connecting stud and the internal thread groove of the mounting screw hole are adapted to each other. When assembling the base and the transmission rod, the connecting stud of the transmission rod is aligned with the mounting screw hole of the base and screwed into the mounting screw hole of the base.

[0013] In a possible implementation, the connecting stud of the transmission rod is embedded in the mounting screw hole of the base and is threadedly fixed to the mounting screw hole, so that the assembly and disassembly between the base and the transmission rod are convenient.

[0014] In a possible implementation, the diameter of the hole on the flange end is larger than the diameter of the transmission shaft, the transmission shaft is inserted into the hole, and the transmission rod passes through the hole and is fastened to the base.

[0015] In a possible implementation, a plurality of groups of T-slots are provided on the machine tool chuck, and the machine tool chuck is configured as a disc-shaped structure, and the plurality of groups of T-slots are all oriented toward the center of the machine tool chuck.

[0016] In a possible implementation, a slide is installed inside the T-slot, and the slide is slidably connected to the T-slot, and the slide is fixedly connected to the locking bolt, and the screw head of the locking bolt is located in the T-slot, and the T-slot is set to a T-shaped structure. The slide can drive the locking bolt to slide along the T-slot, and the position of the locking bolt can be flexibly adjusted. When installing the base, the position of the locking bolt can be adjusted accordingly according to the positions of the first mounting hole and the second mounting hole of the base, and the base can be installed and fixed by the locking bolt.

[0017] Compared with the prior art, the present invention has the following beneficial effects: 1. The present invention connects the machine tool chuck and the intermediate shaft body through a base and a transmission rod, replacing the original clamping hoop to form a new tooling. By designing and manufacturing the new tooling, the transmission effect is relatively ideal. Compared with the original tooling, the influence of the intermediate shaft idling during the initial movement is reduced, the power transmission is timely, and the shaft and the lathe spindle have no relative movement and no relative position change. The use of this tooling well solves the problem of processing difficulties caused by uneven transmission force during shaft processing, ensures the processing accuracy of the product, and thus improves the product quality.

[0018] 2. After the intermediate shaft body of the present invention is clamped, the outer circle of the flange end thereof is not blocked or contacted by other structural parts. Therefore, during the processing of the intermediate shaft body, no copper slag will remain on the outer circle of the flange end of the intermediate shaft body, thereby improving the aesthetics of the intermediate shaft body and eliminating the need to clean the intermediate shaft body, saving time and effort and solving the problem of unsightly workpiece surface. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The above description is only an overview of the technical solution of the present invention. In order to more clearly understand the technical means of the present invention and implement it according to the contents of the specification, the following is a detailed description of the preferred embodiments of the present invention in conjunction with the accompanying drawings.

[0020] Figure 1 It is a schematic diagram of the assembly of the machine tool chuck, base, transmission rod and intermediate shaft body of the present invention; Figure 2 It is a schematic diagram of the assembly of the base and the transmission rod of the present invention; Figure 3 It is a schematic diagram of the assembly of the locking bolt, the base and the transmission rod of the present invention; Figure 4 It is a schematic diagram of the overall structure of the base of the present invention; Figure 5 It is a front view of the base of the present invention; Figure 6 It is the cross-sectional view AA of the present invention; Figure 7 It is a schematic diagram of the overall structure of the transmission rod of the present invention; Figure 8 It is a front view of the transmission rod of the present invention; Fig. 9 It is the cross-sectional view BB of the present invention; Fig.10 It is a schematic diagram of the original clamp of the intermediate shaft body of the present invention.

[0021] In the figure: 1, machine tool chuck; 2, slide; 3, locking bolt; 4, base; 5, transmission rod; 6, intermediate shaft body; 11, T-slot; 41, first mounting hole; 42, second mounting hole; 43, mounting screw hole; 51, transmission shaft body; 52, connecting stud; 61, flange end; 62, hole body. DETAILED DESCRIPTION

[0022] The embodiment of the present application provides an intermediate shaft processing power transmission device. By designing and manufacturing a new type of tooling, the transmission effect is relatively ideal. Compared with the original tooling, the influence of the intermediate shaft idling during the initial movement is reduced, the power transmission is timely, and there is no relative movement between the shaft and the lathe spindle. The problem of processing difficulties caused by uneven transmission force during shaft processing is solved, the processing accuracy of the product is guaranteed, and the product quality and aesthetics are improved, thereby solving the technical problems mentioned in the background technology.

[0023] The technical solution in the embodiment of the present application is to solve the problems of the above-mentioned background technology, and the overall idea is as follows: Embodiment 1: See also Figure 1-10The present invention provides a technical solution: an intermediate shaft processing power transmission device, comprising a machine tool chuck 1, a base 4, a transmission rod 5 and an intermediate shaft body 6, the intermediate shaft body 6 is made of alloy steel, the base 4 is set as a convex structure, the base 4 is provided with a first mounting hole 41, a second mounting hole 42 and a mounting screw hole 43, the first mounting hole 41 and the second mounting hole 42 are distributed on both sides of the mounting screw hole 43, the mounting screw hole 43 is located at the center of the base 4, and is used to connect the transmission rod 5, the machine tool chuck 1 and the base 4 are fixedly connected by a locking bolt 3, the transmission rod 5 comprises a transmission shaft body 51 and a connecting stud 52, the connecting stud 52 of the transmission rod 5 is threadedly connected with the mounting screw hole 43 of the base 4, the base 4 is threadedly fixedly connected with the transmission rod 5, the intermediate shaft body 6 includes a flange end 61, a chamfered corner portion is provided at the connection between the intermediate shaft body 6 and the flange end 61, a hole body 62 is provided at the center position of the flange end 61, the base 4 is installed and fixed on the surface of the machine tool chuck 1, the base 4 and the intermediate shaft body 6 are connected through the transmission rod 5, one end of the transmission rod 5 extends into the hole body 62 of the intermediate shaft body 6, one end of the intermediate shaft body 6 is connected to the machine tool chuck 1, and the other end of the intermediate shaft body 6 is connected to the tailstock, the tailstock includes a center, the intermediate shaft body 6 is clamped by the tailstock and the machine tool chuck 1, and two centers are used for processing to ensure that the runout of the intermediate shaft body 6 is within a reasonable range, thereby ensuring the processing quality of the intermediate shaft body 6.

[0024] Among them, the original clamping and fixing method of the intermediate shaft body 6 is as follows Fig.10 As shown, the positions of the multiple sets of clamp structures on the machine tool chuck 1 are adjustable. The positions of the multiple sets of clamps on the machine tool chuck 1 are adjusted according to the size structure of the intermediate shaft body 6. The outer circle of the flange end 61 at one end of the intermediate shaft body 6 is tightened by the multiple sets of clamps. The multiple sets of clamps are tightly attached to the outer circle of the flange end 61 to achieve clamping and fixing of the intermediate shaft body 6. The clamps are lined with copper and tightly attached to the outer circle of the flange end 61. After the intermediate shaft body 6 is removed, copper slag will remain on the outer circle of the flange end 61. The copper slag is difficult to clean, resulting in a decrease in the aesthetics of the intermediate shaft body 6. If the aesthetics of the intermediate shaft body 6 is to be ensured, the copper slag needs to be cleaned, which increases the cleaning process, is time-consuming and labor-intensive, and reduces the processing efficiency.

[0025] Among them, the base 4 is designed with a first mounting hole 41 and a second mounting hole 42 according to the arrangement of the T-slot 11 on the machine tool chuck 1, so that the first mounting hole 41 and the second mounting hole 42 of the base 4 are adapted to the slot structure of the machine tool chuck 1, and the base 4 can be installed and fixed on the surface of the machine tool chuck 1 through the first mounting hole 41 and the second mounting hole 42.

[0026] Among them, the transmission rod 5 structure for connecting the base 4 and the intermediate shaft body 6 is designed according to the size of the intermediate shaft body 6 and the size of the base 4, and it is ensured that the structural strength and rigidity of the transmission rod 5 meet the use requirements. When installing the transmission rod 5, the connecting stud 52 of the transmission rod 5 is aligned with the mounting screw hole 43 of the base 4, and the connecting stud 52 of the transmission rod 5 is manually rotated to screw the connecting stud 52 of the transmission rod 5 into the mounting screw hole 43 of the base 4 to achieve a threaded fixed connection between the connecting stud 52 and the mounting screw hole 43, that is, to achieve a threaded fixed connection between the base 4 and the transmission rod 5. The connection method is simple, and the base 4 and the transmission rod 5 are a detachable structure. When assembling, it is only necessary to manually rotate the transmission rod 5, which is convenient for installation and disassembly of the transmission rod 5 and can ensure the connection strength.

[0027] Among them, the flange end 61 at one end of the intermediate shaft body 6 is the propeller end, and a hole body 62 structure slightly larger than the transmission rod 5 is opened on the flange end 61. The circumferential center distance of the hole body 62 is consistent with the flange hole. The transmission rod 5 passes through the hole body 62 and is connected and fastened to the base 4. The hole body 62 of the flange end 61 of the intermediate shaft body 6 is adapted to the transmission shaft body 51 of the transmission rod 5, so that the transmission shaft body 51 of the transmission rod 5 can extend into the hole body 62 of the flange end 61 of the intermediate shaft body 6.

[0028] In some examples, the base 4 and the transmission rod 5 are located between the machine tool chuck 1 and the intermediate shaft body 6 to connect the machine tool chuck 1 and the intermediate shaft body 6 .

[0029] The machine tool chuck 1 and the intermediate shaft body 6 are connected through the base 4 and the transmission rod 5. Figure 1 As shown, after the intermediate shaft body 6 is clamped, the outer circle of the flange end 61 thereof is not blocked or contacted by other structural parts, and the original clamping hoop is used instead. Therefore, during the processing of the intermediate shaft body 6, no copper slag will remain on the outer circle of the flange end 61 of the intermediate shaft body 6, thereby improving the aesthetics of the intermediate shaft body 6 and eliminating the need to clean the intermediate shaft body 6, saving time and effort. The machine tool chuck 1 and the intermediate shaft body 6 are connected by the base 4 and the transmission rod 5. Compared with the original clamping and fixing of the intermediate shaft by the clamping hoop, the clamping operation using the base 4 and the transmission rod 5 is simpler and the assembly and disassembly operation of the intermediate shaft body 6 is convenient.

[0030] In some examples, the first mounting hole 41 is located on one side of the base 4, and the second mounting hole 42 is located on the other side of the base 4. Two groups of locking bolts 3 are provided for connecting the base 4 to the machine tool chuck 1. One group of locking bolts 3 passes through the first mounting hole 41 of the base 4 and is fixed by nuts, and the other group of locking bolts 3 passes through the second mounting hole 42 of the base 4 and is fixed by nuts. The base 4 is installed and fixed on the surface of the machine tool chuck 1 by the two groups of locking bolts 3.

[0031] Among them, when installing and fixing the machine tool chuck 1 and the base 4, align the first mounting hole 41 of the base 4 with the groove body on the machine tool chuck 1, align the second mounting hole 42 of the base 4 with the groove body on the machine tool chuck 1, use a group of locking bolts 3 to penetrate the first mounting hole 41 of the base 4 and fix it with nuts, use another group of locking bolts 3 to penetrate the second mounting hole 42 of the base 4 and fix it with nuts, so as to achieve the installation and fixation of the base 4, and install and fix the base 4 at the center position of the machine tool chuck 1. At this time, the mounting screw hole 43 on the base 4 is also in the center position of the machine tool chuck 1, and then install the transmission rod 5, align the connecting stud 52 of the transmission rod 5 with the mounting screw hole 43 and threadedly connect them, to achieve the installation and fixation of the transmission rod 5, and install and fix the transmission rod 5 on the base 4. At this time, the transmission rod 5 is also in the center position of the machine tool chuck 1.

[0032] In some examples, the first mounting hole 41 and the second mounting hole 42 have the same aperture size, and the base 4 can be installed and fixed using locking bolts 3 of the same specification. The mounting screw hole 43 is located in the middle position between the first mounting hole 41 and the second mounting hole 42, and the first mounting hole 41 and the second mounting hole 42 are symmetrically arranged about the axis of the mounting screw hole 43, and the mounting screw hole 43 is at the center position of the base 4.

[0033] In some examples, the transmission shaft 51 and the connecting stud 52 are configured as an integrally formed structure, the transmission shaft 51 and the connecting stud 52 are located on the same axis, and chamfered structures are provided at both ends of the transmission shaft 51. The transmission rod 5 has good structural integrity and high structural strength and rigidity. When used as a transmission component, it can stably transmit power and meet the processing and use requirements of the intermediate shaft body 6.

[0034] In some examples, an outer side surface of the connecting stud 52 is provided with an external thread groove, and an inner side surface of the mounting screw hole 43 is provided with an internal thread groove, and the external thread groove of the connecting stud 52 and the internal thread groove of the mounting screw hole 43 are adapted to each other.

[0035] In some examples, the connection stud 52 of the transmission rod 5 is embedded in the mounting screw hole 43 of the base 4 and is threadedly fixed to the mounting screw hole 43 .

[0036] When assembling the base 4 and the transmission rod 5, align the connecting stud 52 of the transmission rod 5 with the mounting screw hole 43 of the base 4 and screw it into the mounting screw hole 43 of the base 4 to achieve a threaded fixed connection between the base 4 and the transmission rod 5, making assembly and disassembly between the base 4 and the transmission rod 5 convenient.

[0037] In some examples, the diameter of the hole 62 on the flange end 61 is larger than the diameter of the transmission shaft 51 , the transmission shaft 51 is inserted into the hole 62 , and the transmission rod 5 passes through the hole 62 to be connected and fastened to the base 4 .

[0038] By adopting the above technical solution: The machine tool chuck 1 and the intermediate shaft body 6 are connected through the base 4 and the transmission rod 5, replacing the original clamping hoop to form a new tooling. By designing and manufacturing the new tooling, the transmission effect is relatively ideal. Compared with the original tooling, the influence of the intermediate shaft idling during the initial movement is reduced, the power transmission is timely, and the shaft and the lathe spindle have no relative movement and no relative position change. The use of this tooling solves the problem of processing difficulties caused by uneven transmission force during shaft processing, ensures the processing accuracy of the product, and thus improves the product quality; After the intermediate shaft body 6 is clamped, the outer circle of its flange end 61 is not blocked or contacted by other structural parts. Therefore, during the processing of the intermediate shaft body 6, no copper slag will remain on the outer circle of the flange end 61 of the intermediate shaft body 6, which improves the aesthetics of the intermediate shaft body 6 and eliminates the need to clean the intermediate shaft body 6, saving time and effort.

[0039] Embodiment 2: Based on Example 1, this example introduces a specific structure of a machine tool chuck 1 in an intermediate shaft processing power transmission device. A plurality of groups of T-slots 11 are provided on the machine tool chuck 1. The machine tool chuck 1 is configured as a disc-shaped structure. The plurality of groups of T-slots 11 are all oriented toward the center of the machine tool chuck 1. When the base 4 is installed, the first mounting hole 41 and the second mounting hole 42 of the base 4 are aligned with the T-slots 11 of the machine tool chuck 1.

[0040] In some examples, a slide 2 is installed inside the T-slot 11 , and the slide 2 is slidably connected to the T-slot 11 , and the slide 2 is fixedly connected to the locking bolt 3 , and the screw head of the locking bolt 3 is located in the T-slot 11 .

[0041] Among them, the T-slot 11 is set as a T-shaped structure, and the slide 2 can drive the locking bolt 3 to slide along the T-slot 11, so as to flexibly adjust the position of the locking bolt 3. When installing the base 4, the position of the locking bolt 3 can be adjusted accordingly according to the position of the first mounting hole 41 and the second mounting hole 42 of the base 4. The base 4 is installed and fixed by the locking bolt 3, and a detachable structure is provided between the machine tool chuck 1 and the locking bolt 3.

[0042] Finally, it should be noted that: Obviously, the above embodiments are only examples for clearly explaining the present invention, and are not intended to limit the implementation methods. For ordinary technicians in the relevant field, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to list all the implementation methods here. The obvious changes or modifications derived from this are still within the scope of protection of the present invention.

Claims

1. A power transmission device for processing an intermediate shaft, comprising a machine tool chuck (1), a base (4), a transmission rod (5) and an intermediate shaft body (6), characterized in that: The base (4) is provided with a first mounting hole (41), a second mounting hole (42) and a mounting screw hole (43); the machine tool chuck (1) and the base (4) are fixedly connected via a locking bolt (3); the transmission rod (5) comprises a transmission shaft (51) and a connecting stud (52); the connecting stud (52) of the transmission rod (5) is threadedly connected to the mounting screw hole (43) of the base (4); the base (4) and the transmission rod (5) are threadedly fixedly connected; the intermediate shaft body (6) comprises a flange end (61); a hole body (62) is provided at the center of the flange end (61); the base (4) is fixedly mounted on the surface of the machine tool chuck (1); the base (4) and the intermediate shaft body (6) are connected via the transmission rod (5); one end of the transmission rod (5) extends into the hole body (62) of the intermediate shaft body (6).

2. The intermediate shaft processing power transmission device according to claim 1, characterized in that: The base (4) and the transmission rod (5) are located between the machine tool chuck (1) and the intermediate shaft body (6), and are used to connect the machine tool chuck (1) and the intermediate shaft body (6).

3. The intermediate shaft processing power transmission device according to claim 1, characterized in that: The first mounting hole (41) is located on one side of the base (4), and the second mounting hole (42) is located on the other side of the base (4). Two groups of locking bolts (3) are provided for connecting the base (4) to the machine tool chuck (1), one group of locking bolts (3) passes through the first mounting hole (41) of the base (4) and is fixed by a nut, and the other group of locking bolts (3) passes through the second mounting hole (42) of the base (4) and is fixed by a nut.

4. The intermediate shaft processing power transmission device according to claim 1, characterized in that: The first mounting hole (41) and the second mounting hole (42) have the same hole diameter, the mounting screw hole (43) is located at a middle position between the first mounting hole (41) and the second mounting hole (42), and the first mounting hole (41) and the second mounting hole (42) are symmetrically arranged about the axis of the mounting screw hole (43).

5. The intermediate shaft processing power transmission device according to claim 1, characterized in that: The transmission shaft body (51) and the connecting stud (52) are arranged as an integrally formed structure; the transmission shaft body (51) and the connecting stud (52) are located on the same axis; and both ends of the transmission shaft body (51) are provided with chamfered structures.

6. The intermediate shaft processing power transmission device according to claim 1, characterized in that: The outer side surface of the connecting stud (52) is provided with an external thread groove, and the inner side surface of the mounting screw hole (43) is provided with an internal thread groove, and the external thread groove of the connecting stud (52) and the internal thread groove of the mounting screw hole (43) are mutually adapted.

7. The intermediate shaft processing power transmission device according to claim 6, characterized in that: The connecting stud (52) of the transmission rod (5) is embedded in the mounting screw hole (43) of the base (4) and is threadedly fixed to the mounting screw hole (43).

8. The intermediate shaft processing power transmission device according to claim 1, characterized in that: The diameter of the hole (62) on the flange end (61) is larger than the diameter of the transmission shaft (51), and the transmission shaft (51) is inserted into the hole (62).

9. The intermediate shaft processing power transmission device according to claim 1, characterized in that: The machine tool chuck (1) is provided with a plurality of groups of T-slots (11); the machine tool chuck (1) is configured as a disc-shaped structure; the plurality of groups of T-slots (11) are all oriented towards the center of the machine tool chuck (1).

10. The intermediate shaft processing power transmission device according to claim 9, characterized in that: A slide (2) is installed inside the T-slot (11), and the slide (2) is slidably connected to the T-slot (11), and the slide (2) is fixedly connected to the locking bolt (3), and the screw head of the locking bolt (3) is located in the T-slot (11).

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