Thin-wall sleeve radial hole turning clamping device

Abstract

The utility model relates to a thin-wall sleeve radial hole turning clamping device which comprises a clamp body, a mandrel, a first supporting sleeve, a second supporting sleeve, a positioning pin and a jacking mechanism. Under the matching action of the clamp body, the first supporting sleeve, the second supporting sleeve, the positioning pin and the jacking mechanism, six-degree-of-freedom limitation on a thin-wall sleeve workpiece is achieved, the thin-wall sleeve cannot move and rotate, and the complete positioning effect on the thin-wall sleeve is achieved. Limiting of the thin-wall sleeve by the device does not completely depend on the clamping effect, and the influence of clamping force on the thin-wall sleeve is reduced. And moreover, the mandrel is arranged, and the through hole is formed in the mandrel, so that a supporting effect can be provided for the thin-wall sleeve, the radial hole formed in the thin-wall sleeve is not influenced, the deformation condition of the thin-wall sleeve can be greatly reduced, and the machining quality is ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of turning processing, in particular to a thin-wall sleeve radial hole turning clamping device. Background Art

[0002] The thin-walled sleeve is a typical thin-walled part. The difference between its inner and outer diameters is very small, and it is very easy to deform during processing. When the thin-walled sleeve is processed with radial holes through turning, the thin-walled sleeve cannot withstand a large radial clamping force. Therefore, compared with the processing of ordinary parts, the thin-walled sleeve has higher requirements for the fixture.

[0003] However, currently, three-jaw chucks and other clamps are generally used to clamp thin-walled sleeves, but it is easy to clamp the thin-walled sleeve loosely, causing the thin-walled sleeve to move slightly, resulting in inaccurate radial hole processing positions. In addition, since the side wall of the thin-walled sleeve is very thin, the clamping effect of ordinary clamps can easily cause the thin-walled sleeve to deform, making it difficult to ensure processing quality. Utility Model Content

[0004] The technical problem to be solved by the utility model is to provide a thin-wall sleeve radial hole turning clamping device.

[0005] The technical solution of the utility model to solve the above technical problems is as follows:

[0006] The clamping device for turning a radial hole of a thin-walled sleeve comprises: a clamping body, a core shaft, a first support sleeve, a second support sleeve, a positioning pin and a pressing mechanism; the clamping body comprises a base plate, a first mounting beam and a second mounting beam, the first mounting beam and the second mounting beam are respectively connected to the base plate; a through hole is provided on the core shaft, the core shaft is inserted into the thin-walled sleeve, the length of the core shaft is equal to the length of the thin-walled sleeve; the first support sleeve and the second support sleeve are respectively sleeved at two ends of the thin-walled sleeve; the first mounting beam is provided with a mounting hole, the first support sleeve is clamped in the mounting hole; the second mounting beam is provided with a slot, and the second support sleeve is clamped in the slot; there are at least two positioning pins, and each end of the positioning pin passes through the second mounting beam and is connected to the end of the core shaft; the pressing mechanism is installed on the first mounting beam on a side away from the second mounting beam, and the end of the pressing mechanism is connected to the The end faces of the core shaft are against each other; there are two pressing mechanisms, and the two pressing mechanisms are respectively arranged on both sides of the mounting hole; each pressing mechanism comprises a pressing plate, a bolt, a first connecting bolt, a first washer, a nut, a spring, a support column and a second connecting bolt, the pressing plate is arranged parallel to the first mounting beam, and a first sliding groove is provided on the pressing plate, the bolt is passed through the first sliding groove, one end of the bolt is connected with the first connecting bolt, the first connecting bolt is passed through the first mounting beam, and the other end of the bolt is connected with the first washer and the nut; the spring is sleeved on the bolt, and the spring is arranged between the pressing plate and the first mounting beam; a second sliding groove is provided on the side of the pressing plate opposite to the first mounting beam, one end of the support column is slidably connected to the second sliding groove, the other end of the support column is connected with the second connecting bolt, and the second connecting bolt is passed through the first mounting beam.

[0007] The beneficial effects of the utility model are as follows: a coordinate system is established with the axis direction of the thin-walled sleeve as the Z-axis direction, and under the action of at least two positioning pins, the thin-walled sleeve is restricted from moving along the X-axis direction, moving along the Y-axis direction, and rotating along the Z-axis direction; under the action of the clamping body, the thin-walled sleeve is restricted from moving along the Z-axis direction; under the action of the first support sleeve and the second support sleeve, the thin-walled sleeve is restricted from rotating along the X-axis direction and rotating along the Y-axis direction. Therefore, under the cooperation of the clamping body, the first support sleeve, the second support sleeve, the positioning pins, and the top pressing mechanism, the six degrees of freedom of the thin-walled sleeve workpiece are restricted, so that the thin-walled sleeve can neither be displaced nor rotated, and the complete positioning effect of the thin-walled sleeve is achieved. The positioning of the thin-walled sleeve by the device does not completely rely on the clamping effect, and the influence of the clamping force on the thin-walled sleeve is reduced. In addition, a mandrel is provided, and a through hole is opened on the mandrel, which can provide support for the thin-walled sleeve without affecting the radial hole of the thin-walled sleeve, and can greatly reduce the occurrence of deformation of the thin-walled sleeve, and ensure the processing quality. In the pressing mechanism, a first slide groove and a second slide groove are provided so that the pressing plate can be moved without affecting the installation and disassembly of structures such as the thin-walled sleeve and the core shaft; a support column is provided to support the pressing plate and prevent the pressing plate from rotating; the positioning of the pressing plate is achieved under the action of nuts and bolts.

[0008] On the basis of the above technical solution, the present invention can also be improved as follows.

[0009] Furthermore, the core shaft includes a positioning shaft, a connecting shaft and an axial adjustment sleeve, the positioning shaft is coaxially connected to the connecting shaft; the axial adjustment sleeve is sleeved on the connecting shaft, and the outer diameter of the axial adjustment sleeve is equal to the outer diameter of the positioning shaft; one end of the thin-walled sleeve is flush with the end face of the axial adjustment sleeve, and the other end of the thin-walled sleeve is flush with the end face of the positioning shaft; the through hole is opened on the positioning shaft, and the positioning pin is connected to the positioning shaft.

[0010] The beneficial effect of adopting the above further solution is that for thin-walled sleeves of different lengths, mandrels of different lengths need to be used to match them, so as to ensure that the mandrel provides sufficient support for the thin-walled sleeve. The mandrel is arranged in a segmented structure, and the overall length of the mandrel can be adjusted by only adjusting the length of the axial adjustment sleeve.

[0011] Furthermore, the bottom plate is a circular structure, the projection of the center line of the core shaft on the bottom plate coincides with the diameter of the bottom plate, and the projection of the center point of the through hole on the bottom plate coincides with the center of the bottom plate.

[0012] The beneficial effect of adopting the above further solution is that the center of the circle of the base plate can be directly aligned with the center point of the through hole, that is, the center point of the radial hole, which facilitates the accurate positioning of the radial hole.

[0013] Furthermore, the through hole is an elongated hole.

[0014] Furthermore, the first support sleeve is a sleeve structure, and a first annular protrusion is provided on the inner wall of the first support sleeve at one end away from the second mounting beam, and an annular groove is provided on the outer wall of the other end of the first support sleeve, and a block adapted to the annular groove is provided on the side wall of the mounting hole at one end close to the second mounting beam.

[0015] The beneficial effect of adopting the above further solution is that the first support sleeve is limited by the cooperation of the annular groove and the block to prevent the first support sleeve from sliding out. Only the first annular protrusion contacts the thin-walled sleeve to prevent over-positioning.

[0016] Furthermore, the second supporting sleeve is a sleeve structure, and a second annular protrusion is provided on the inner wall of the second supporting sleeve at one end close to the first mounting beam.

[0017] The beneficial effect of adopting the above further solution is that only the second annular projection contacts the thin-walled sleeve, thereby preventing over-positioning.

[0018] Furthermore, it includes a first screw, the end of which passes through the first mounting beam and is connected to the first supporting sleeve.

[0019] The beneficial effect of adopting the above further solution is that the position of the first support sleeve can be further fixed to prevent the first support sleeve from rotating relative to the clamp body.

[0020] Furthermore, it also includes a second screw, the end of which passes through the second mounting beam and is connected to the second supporting sleeve.

[0021] The beneficial effect of adopting the above further solution is that the position of the second support sleeve can be further fixed to prevent the second support sleeve from rotating relative to the clamp body.

[0022] Furthermore, a balancing mechanism is connected to the base plate, and the balancing mechanism is arranged on a side of the second mounting beam away from the first mounting beam. The balancing mechanism includes a third screw, a second washer and a balancing block, and the end of the third screw passes through the second washer and the balancing block in sequence and is connected to the base plate.

[0023] The beneficial effect of adopting the above further solution is that when the device as a whole rotates, under the action of the balancing block, excessive centrifugal force can be avoided to prevent accidents. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 This is a structural front view of a thin-walled sleeve radial hole turning clamping device of the utility model;

[0025] Figure 2The utility model is a side sectional view of a thin-wall sleeve radial hole turning clamping device.

[0026] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0027] 1. First support sleeve; 2. Second support sleeve; 3. Positioning pin; 4. Bottom plate; 5. First mounting beam; 6. Second mounting beam; 7. Through hole; 8. Thin-walled sleeve; 9. Positioning shaft; 10. Connecting shaft; 11. Axial adjustment sleeve; 12. Pressing plate; 13. Bolt; 14. First connecting bolt; 15. First washer; 16. Nut; 17. Spring; 18. Support column; 19. Second connecting bolt; 20. First screw; 21. Second screw; 22. Third screw; 23. Second washer; 24. Balance block. DETAILED DESCRIPTION

[0028] The principles and features of the present invention are described below in conjunction with the accompanying drawings. The examples given are only used to explain the present invention and are not used to limit the scope of the present invention.

[0029] like Figure 1 and Figure 2 The present embodiment provides a thin-walled sleeve radial hole turning clamping device, comprising: a clamping body, a core shaft, a first support sleeve 1, a second support sleeve 2, a positioning pin 3 and a pressing mechanism; the clamping body comprises a base plate 4, a first mounting beam 5 and a second mounting beam 6, the first mounting beam 5 and the second mounting beam 6 are respectively connected to the base plate 4; a through hole 7 is provided on the core shaft, the core shaft is inserted into a thin-walled sleeve 8, and the length of the core shaft is equal to the length of the thin-walled sleeve 8; the first support sleeve 1 and the second support sleeve 2 are respectively sleeved on the two ends of the thin-walled sleeve 8; the first mounting beam 5 is provided with a mounting hole, and the first support sleeve 1 is clamped in the mounting hole; the second mounting beam 6 is provided with a slot, and the second support sleeve 2 is clamped in the slot; there are at least two positioning pins 3, and each end of the positioning pin 3 passes through the second mounting beam 6 and is connected to the end of the core shaft; the pressing mechanism is installed on the first mounting beam 5 on the side away from the second mounting beam 6, and the end of the pressing mechanism is against the end face of the core shaft.

[0030] In this embodiment, the first mounting beam 5 is arranged in parallel with the second mounting beam 6. When a hole for connecting the positioning pin 3 is opened at the bottom of the mandrel, attention should be paid to the relative position of the hole and the through hole 7, so that after the positioning pin 3 is installed, the through hole 7 faces the bottom plate 4. At least two positioning pins 3 are provided. On the one hand, the installation angle of the mandrel is fixed to ensure that the through hole 7 on the mandrel can always face the bottom plate 4; on the other hand, the mandrel is fixed and will not rotate.

[0031] Under the cooperation of the clamp body, the first support sleeve 1, the second support sleeve 2, the positioning pin 3 and the top pressing mechanism, the six degrees of freedom of the thin-walled sleeve 8 workpiece are restricted, so that the thin-walled sleeve 8 can neither be displaced nor rotated, thereby achieving a complete positioning effect on the thin-walled sleeve 8. The device does not completely rely on the clamping effect to limit the position of the thin-walled sleeve 8, thereby reducing the influence of the clamping force on the thin-walled sleeve 8. In addition, a mandrel is provided, and a through hole 7 is opened on the mandrel, which can provide support for the thin-walled sleeve 8 without affecting the opening of radial holes in the thin-walled sleeve 8, which can greatly reduce the deformation of the thin-walled sleeve 8 and ensure the processing quality.

[0032] Optionally, the core shaft includes a positioning shaft 9, a connecting shaft 10 and an axial adjustment sleeve 11, the positioning shaft 9 is coaxially connected to the connecting shaft 10; the axial adjustment sleeve 11 is sleeved on the connecting shaft 10, and the outer diameter of the axial adjustment sleeve 11 is equal to the outer diameter of the positioning shaft 9; one end of the thin-walled sleeve 8 is flush with the end face of the axial adjustment sleeve 11, and the other end of the thin-walled sleeve 8 is flush with the end face of the positioning shaft 9; the through hole 7 is opened on the positioning shaft 9, and the positioning pin 3 is connected to the positioning shaft 9.

[0033] For thin-walled sleeves 8 of different lengths, mandrels of different lengths need to be used to match them, so as to ensure that the mandrel provides sufficient support for the thin-walled sleeve 8. The mandrel is set as a segmented structure, and the overall length of the mandrel can be adjusted by only adjusting the length of the axial adjustment sleeve 11. In this embodiment, the positioning shaft 9 and the connecting shaft 10 are an integrated structure and belong to the same part.

[0034] Optionally, the bottom plate 4 is a circular structure, the projection of the center line of the mandrel on the bottom plate 4 coincides with the diameter of the bottom plate 4, and the projection of the center point of the through hole 7 on the bottom plate 4 coincides with the center of the circle of the bottom plate 4. Aligning the center of the circle of the bottom plate 4 can directly align the center point of the through hole 7, that is, the center point of the radial hole, which facilitates the accurate positioning of the radial hole.

[0035] Optionally, the through hole 7 is a long hole.

[0036] Optionally, there are two pressing mechanisms, which are respectively arranged on both sides of the mounting hole; each of the pressing mechanisms includes a pressing plate 12, a bolt 13, a first connecting bolt 14, a first washer 15, a nut 16, a spring 17, a support column 18 and a second connecting bolt 19; the pressing plate 12 is arranged parallel to the first mounting beam 5; a first sliding groove is provided on the pressing plate 12, the bolt 13 is inserted into the first sliding groove, one end of the bolt 13 is connected to the first connecting bolt 14, the first connecting bolt 14 is inserted into the first mounting beam 5, and the other end of the bolt 13 is connected to the first washer 15 and the nut 16; the spring 17 is sleeved on the bolt 13, and the spring 17 is arranged between the pressing plate 12 and the first mounting beam 5; a second sliding groove is provided on a side of the pressing plate 12 opposite to the first mounting beam 5, one end of the support column 18 is slidably connected to the second sliding groove, the other end of the support column 18 is connected to the second connecting bolt 19, and the second connecting bolt 19 is inserted into the first mounting beam 5.

[0037] The diameter of the bolt 13 is larger than that of the first connecting bolt 14, and the diameter of the support column 18 is larger than that of the second connecting bolt 19, forming a step positioning structure, and the first connecting bolt 14 and the second connecting bolt 19 are tightly fitted with the first mounting beam 5. In the top pressing mechanism, a first slide groove and a second slide groove are provided, so that the pressing plate 12 can be moved, so as not to affect the installation and disassembly of the thin-walled sleeve 8, the core shaft and other structures; a support column 18 is provided to support the pressing plate 12 and prevent the pressing plate 12 from rotating; under the action of the nut 16 and the bolt 13, the pressing plate 12 is positioned. In this embodiment, the bolt 13 and the first connecting bolt 14 are an integrated structure and belong to the same part; the support column 18 and the second connecting bolt 19 are an integrated structure and belong to the same part.

[0038] In some embodiments, the first connecting bolt 14 and the second connecting bolt 19 are omitted, and the ends of the bolts 13 are directly fixedly connected to the first mounting beam 5 , and the ends of the support columns 18 are fixedly connected to the first mounting beam 5 .

[0039] Optionally, the first support sleeve 1 is a sleeve structure, and a first annular protrusion is provided on the inner wall of the first support sleeve 1 at one end away from the second mounting beam 6, and an annular groove is provided on the outer wall of the other end of the first support sleeve 1, and a block adapted to the annular groove is provided on the side wall of the mounting hole at one end close to the second mounting beam 6.

[0040] Under the cooperation of the annular groove and the block, the first support sleeve 1 is limited to prevent the first support sleeve 1 from slipping out. Only the first annular protrusion contacts the thin-walled sleeve 8 to prevent over-positioning.

[0041] Optionally, the second support sleeve 2 is a sleeve structure, and a second annular projection is provided on the inner wall of the second support sleeve 2 near one end of the first mounting beam 5. Only the second annular projection contacts the thin-wall sleeve 8 to prevent over-positioning.

[0042] Optionally, a first screw 20 is further included, and the end of the first screw 20 passes through the first mounting beam 5 and is connected to the first support sleeve 1. The position of the first support sleeve 1 can be further fixed to prevent the first support sleeve 1 from rotating relative to the clamp body.

[0043] Optionally, a second screw 21 is further included, and the end of the second screw 21 passes through the second mounting beam 6 and is connected to the second support sleeve 2. The position of the second support sleeve 2 can be further fixed to prevent the second support sleeve 2 from rotating relative to the clamp body.

[0044] Optionally, a balancing mechanism is connected to the base plate 4, and the balancing mechanism is arranged on the side of the second mounting beam 6 away from the first mounting beam 5. The balancing mechanism includes a third screw 22, a second washer 23 and a balancing block 24. The end of the third screw 22 passes through the second washer 23 and the balancing block 24 in sequence and is connected to the base plate 4.

[0045] When the device as a whole rotates, under the action of the balancing block 24, excessive centrifugal force is avoided to prevent accidents.

[0046] Working principle: When clamping the workpiece with the thin-walled sleeve 8, first adjust the length of the axial adjustment sleeve 11 according to the length of the thin-walled sleeve 8. The axial adjustment sleeve 11 can be machined to grind flat so that the overall length of the core shaft is equal to the length of the thin-walled sleeve 8. Put the thin-walled sleeve 8 on the core shaft, and then put the first support sleeve 1 and the second support sleeve 2 on the thin-walled sleeve 8 respectively, and clamp the first support sleeve 1 and the second support sleeve 2 in the mounting hole and the slot respectively. Install the first screw 20 and the second screw 21 to fix the first support sleeve 1 and the second support sleeve 2 to prevent the first support sleeve 1 and the second support sleeve 2 from rotating relative to the clamp body. Install the locating pin 3 to fix the core shaft to prevent the core shaft from rotating relative to the clamp body. Move the pressure plate 12 so that the end of the pressure plate 12 presses the end face of the thin-walled sleeve 8 and the axial adjustment sleeve 11. After adjusting the position of the pressure plate 12, tighten the bolt 13 to fix the position of the pressure plate 12.

[0047] When disassembling the workpiece, unscrew the nut 16 and remove the pressure plate 12. Remove the first screw 20, the second screw 21, the positioning pin 3 and other components. Rotate the clamp body so that the second mounting beam 6 is located at the top and the first mounting beam 5 is located at the bottom. Remove the combination of the mandrel and the thin-walled sleeve 8, and then remove the mandrel from the thin-walled sleeve 8 to complete the workpiece disassembly.

[0048] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0049] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of the present utility model, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0050] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it 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 the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0051] In the present utility model, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being "above", "above" or "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below", "below" or "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0052] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, without contradiction.

[0053] Although the embodiments of the present invention have been shown and described above, it can be understood that the above embodiments are exemplary and cannot be understood as limitations of the present invention. Ordinary technicians in the field can change, modify, replace and modify the above embodiments within the scope of the present invention.

Claims

1. A thin-walled sleeve radial hole turning clamping device, characterized in that: include: A clamping body, a core shaft, a first support sleeve (1), a second support sleeve (2), a positioning pin (3) and a pressing mechanism; The clamping body comprises a bottom plate (4), a first mounting beam (5) and a second mounting beam (6), wherein the first mounting beam (5) and the second mounting beam (6) are respectively connected to the bottom plate (4); The mandrel is provided with a through hole (7), the mandrel is inserted into a thin-walled sleeve (8), and the length of the mandrel is equal to the length of the thin-walled sleeve (8); The first support sleeve (1) and the second support sleeve (2) are respectively sleeved on the two ends of the thin-wall sleeve (8); the first mounting beam (5) is provided with a mounting hole, and the first support sleeve (1) is snap-fitted into the mounting hole; the second mounting beam (6) is provided with a slot, and the second support sleeve (2) is snap-fitted into the slot; There are at least two positioning pins (3), and the end of each positioning pin (3) passes through the second mounting beam (6) and is connected to the end of the core shaft; The pressing mechanism is installed on a side of the first mounting beam (5) away from the second mounting beam (6), and an end of the pressing mechanism abuts against an end surface of the core shaft; There are two pressing mechanisms, which are respectively arranged on both sides of the mounting hole; each pressing mechanism comprises a pressing plate (12), a bolt (13), a first connecting bolt (14), a first washer (15), a nut (16), a spring (17), a support column (18) and a second connecting bolt (19); the pressing plate (12) is arranged parallel to the first mounting beam (5); a first sliding groove is provided on the pressing plate (12); the bolt (13) is inserted into the first sliding groove; one end of the bolt (13) is connected to the first connecting bolt (14); the first connecting bolt (14) is inserted into the first sliding groove; and In a mounting beam (5), the other end of the bolt (13) is connected to the first washer (15) and the nut (16); the spring (17) is sleeved on the bolt (13), and the spring (17) is arranged between the pressure plate (12) and the first mounting beam (5); a second slide groove is provided on a surface of the pressure plate (12) opposite to the first mounting beam (5), one end of the support column (18) is slidably connected to the second slide groove, and the other end of the support column (18) is connected to the second connecting bolt (19), and the second connecting bolt (19) is installed in the first mounting beam (5).

2. A thin-walled sleeve radial hole turning clamping device according to claim 1, characterized in that: The core shaft comprises a positioning shaft (9), a connecting shaft (10) and an axial adjustment sleeve (11); the positioning shaft (9) is coaxially connected to the connecting shaft (10); the axial adjustment sleeve (11) is sleeved on the connecting shaft (10); the outer diameter of the axial adjustment sleeve (11) is equal to the outer diameter of the positioning shaft (9); one end of the thin-walled sleeve (8) is flush with the end surface of the axial adjustment sleeve (11), and the other end of the thin-walled sleeve (8) is flush with the end surface of the positioning shaft (9); the through hole (7) is opened on the positioning shaft (9), and the positioning pin (3) is connected to the positioning shaft (9).

3. A thin-walled sleeve radial hole turning clamping device according to claim 1, characterized in that: The base plate (4) is a circular structure, the projection of the center line of the core shaft on the base plate (4) coincides with the diameter of the base plate (4), and the projection of the center point of the through hole (7) on the base plate (4) coincides with the center of the base plate (4).

4. A thin-walled sleeve radial hole turning clamping device according to claim 1, characterized in that: The through hole (7) is a long hole.

5. A thin-walled sleeve radial hole turning clamping device according to claim 1, characterized in that: The first support sleeve (1) is a sleeve structure, and a first annular protrusion is arranged on the inner wall of the end of the first support sleeve (1) away from the second mounting beam (6), and an annular groove is arranged on the outer wall of the other end of the first support sleeve (1), and a block adapted to the annular groove is arranged on the side wall of the mounting hole at the end close to the second mounting beam (6).

6. A thin-walled sleeve radial hole turning clamping device according to claim 1, characterized in that: The second support sleeve (2) is a sleeve structure, and a second annular protrusion is provided on the inner wall of the second support sleeve (2) at one end close to the first mounting beam (5).

7. A thin-walled sleeve radial hole turning clamping device according to claim 1, characterized in that: It also comprises a first screw (20), the end of which passes through the first mounting beam (5) and is connected to the first supporting sleeve (1).

8. A thin-walled sleeve radial hole turning clamping device according to claim 1, characterized in that: It also comprises a second screw (21), the end of which passes through the second mounting beam (6) and is connected to the second supporting sleeve (2).

9. A thin-walled sleeve radial hole turning clamping device according to claim 1, characterized in that: A balancing mechanism is connected to the bottom plate (4), and the balancing mechanism is arranged on a side of the second mounting beam (6) away from the first mounting beam (5). The balancing mechanism comprises a third screw (22), a second washer (23) and a balancing block (24). The end of the third screw (22) passes through the second washer (23) and the balancing block (24) in sequence and is connected to the bottom plate (4).

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