Internal support clamping tooling for processing thin-walled cylindrical bodies

Abstract

The present application relates to an internal support clamping tooling for machining thin-walled cylindrical bodies, belonging to the technical field of machine tool machining of thin-walled cylindrical products. It includes a support block, on which a plurality of control blocks are slidably connected. The plurality of control blocks are arranged in a circumferential array centered on the axis of the support block. The control blocks slide radially along the support block. On the side of the control block facing away from the control slider, there is an abutting block, and the side of the abutting block facing away from the control block is arc-shaped. The support block is provided with a control chute for the control block to slide, and a control slider for controlling the sliding of the control block is slidably connected to the support block. The control slider is coaxially arranged with the support block, and the control slider slides axially along the support block. The control block is in inclined wedge fit with the control slider. The support block is provided with a control member for controlling the sliding of the control slider, and the support block is provided with a control member for judging the sliding length of the control block. The present application has the effect of improving the working efficiency of providing support for the thin-walled cylinder and the stability of product quality.

Description

Technical Field

[0001] This application relates to the technical field of machine tool processing of thin-walled cylinder products, and in particular to an internal support clamping tooling for processing thin-walled cylinders. Background Art

[0002] When designing and manufacturing power switches and transmission casings, in order to meet various requirements such as electrical performance, mechanical strength, and installation convenience, a thin-walled cylindrical structure is usually adopted. In the power system, power switches and transmission casings often need to be connected to other equipment or pipelines. Therefore, it is necessary to machine flange surfaces on the cylinder body, so that these components can be connected through flanges to ensure the stability and tightness of the connection.

[0003] The flange surfaces on power switches and transmission casings are usually machined by a lathe. The lathe includes a lathe bed, a headstock, and a tailstock. The headstock is fixedly arranged on the lathe bed, and the tailstock is slidably arranged on the lathe bed. The tailstock slides along the length direction of the lathe bed, so that the lathe can adapt to cylinder workpieces of different length dimensions. Spindles for fixing the support structure are provided on both the headstock and the tailstock. In the prior art, the support structure includes four screw rods threadedly connected to a fixed shaft, and the four screw rods are arranged in a circumferential array with the axis of the fixed shaft as the center. An arc-shaped block matching the inner wall circle of the cylinder is provided on the screw rod head.

[0004] However, it is found in the actual use process that this clamping method requires manual rotation of the screw rod with a wrench until the arc-shaped block abuts against the inner wall of the cylinder on the one hand. The cylinder clamping adjustment time is long and the efficiency is low. On the other hand, the manual adjustment method cannot ensure that the jacking forces of the four arc-shaped blocks on the inner wall of the cylinder are consistent. When measuring the product size after loosening the support tooling after processing, problems such as out-of-roundness and dimensional tolerance exceeding of the flange outer circle and the sealing groove are likely to occur. Summary of the Invention

[0005] In order to improve the working efficiency of providing support for thin-walled cylinders and the stability of product quality, this application provides an internal support clamping tooling for processing thin-walled cylinders.

[0006] The internal support clamping tooling for processing thin-walled cylinders provided by this application adopts the following technical solutions:

[0007] The internal support clamping tooling for processing thin-walled cylinders includes a support block, on which a plurality of control blocks are slidably connected. The plurality of control blocks are arranged in a circumferential array with the axis of the support block as the center. The control blocks slide radially along the support block. An abutting block is provided on the side of the control block facing away from the control slider. The side of the abutting block facing away from the control block is arc-shaped;

[0008] The support block is provided with a control slide groove for the control block to slide, the support block is slidably connected with a control slide block for controlling the sliding of the control block, the control slide block is coaxially arranged with the support block, the control slide block slides along the axial direction of the support block, the control block cooperates with the control slide block obliquely, and the support block is provided with a control slide member for controlling the sliding of the control slide block.

[0009] By adopting the above technical scheme, the arc-shaped abutment block is more adapted to the inner wall of the cylinder, which effectively improves the contact area between the abutment block and the inner wall of the cylinder, improves the effect of providing support to the cylinder through the abutment block, and the cylinder is not easily deformed during the support process, thereby improving the quality of supporting the inner wall of the cylinder; through the design of the control block and the control sliding block oblique wedge cooperation, when the control sliding block slides along the axial direction of the support block, the four control blocks located on the support block can synchronously slide along the radial direction of the support block, and the sliding lengths of the four control blocks are consistent, so that the supporting force and position size of the abutment block on the inner wall of the cylinder are consistent, thereby improving the quality of supporting the cylinder.

[0010] Preferably, the control sliding part is a control oil cylinder, which includes a shell and a piston rod. The piston rod is slidably arranged in the shell, one end of the shell is in contact with the end surface of the support block facing away from the control block, and the other end of the shell is provided with a control flange for connecting with other components. The piston rod is coaxially connected to the control sliding block.

[0011] By adopting the above technical scheme, the control slide block slides under the action of the control cylinder, which effectively improves the speed and efficiency of providing support to the inner wall of the cylinder through the internal support clamping tooling, and the magnitude of the force providing support to the inner wall of the cylinder can be adjusted by controlling the pressure of the cylinder, so that the internal support clamping tooling can adapt to cylinders of different diameters and wall thicknesses. The whole set of tooling is simple to operate and runs safely and reliably, realizes automated control, and improves the quality of supporting the inner wall of the cylinder.

[0012] Preferably, a limit tube is coaxially provided on the support block, a limit cavity for the limit tube to be engaged is provided on the support block, a limit baffle is coaxially provided on the end of the limit tube away from the control sliding block, the limit baffle is fitted with the support block and the control block, and the sliding distance of the control block is maximum when the control sliding block slides to fit with the limit tube.

[0013] By adopting the above technical scheme, through the setting of the limit baffle, on the one hand, it is possible to limit the shaking of the control block in the direction away from the support block, and on the other hand, it is possible to provide protection for the control slide groove, so that external impurities or dust are not easily moved into the control slide groove, thereby ensuring the stability and reliability of the sliding of the control block; through the setting of the limit tube, the maximum sliding distance of the control slide block can be effectively limited, thereby ensuring the service life of the internal support clamping tooling.

[0014] Preferably, the support block is provided with a positioning rod corresponding to the control block, the positioning rod is located in the control slide groove, and the control block is provided with a positioning slide groove for the positioning rod to slide.

[0015] By adopting the above technical solution, with the cooperation of the positioning rod and the positioning slide groove, the sliding length of the control block is further limited, thereby ensuring the service life of the internal support clamping tooling.

[0016] Preferably, the abutment block is detachably connected to the control block and fixed to the control block by a control bolt. The abutment block is provided with a control countersunk hole for accommodating the control bolt head and a control through hole for the control bolt to pass through, and the support block is provided with a control threaded hole that cooperates with the control bolt thread.

[0017] By adopting the above technical solution, the abutment block and the control block are detachably designed, and the arc-shaped adaptive abutment block can be replaced according to the inner diameter of the cylinder to be supported, further improving the effect of providing support to the cylinder by the abutment block; the abutment block and the control block are fixed by control bolts, so that the connection strength between the abutment block and the control block is high and the installation is convenient, thereby facilitating the replacement of the adaptive abutment block according to the size of the cylinder.

[0018] Preferably, a limit plate is provided on the control block, a limit groove for accommodating the limit plate is provided on the control block, an engaging groove for the limit plate to be engaged is provided on the abutment block, one end of the limit plate facing away from the limit tube is located in the engaging groove, and both ends of the limit plate are arranged in an arc shape.

[0019] By adopting the above technical solution, the limit plate and the interlocking groove cooperate to provide positioning for the installation of the abutment block, thereby facilitating the abutment block to move to the control through hole and connect with the control threaded hole, thereby improving the disassembly and assembly efficiency of the abutment block; both ends of the limit plate are arranged in an arc shape, thereby facilitating the limit plate to slide into the interlocking groove, thereby further improving the installation efficiency of the abutment block.

[0020] Preferably, the control block is located at one end of the control slide groove and is arranged in a dovetail shape, and the shape of the control slide groove is adapted to the control block.

[0021] By adopting the above technical solution, the dovetail-shaped setting of the control block can improve the sliding stability of the control block on the support block on the one hand, and limit the movement of the control block away from the support block on the other hand, thereby improving the sliding stability of the control block on the support block.

[0022] Preferably, the support block is provided with a control member for judging the sliding length of the control block, the control member comprises a partition block slidably arranged on the support block, the support block is provided with a partition slide groove for the partition block to slide, the control block is provided with a partition embedding groove for the partition block to be embedded after sliding, when the sliding distance of the control block is the smallest, the partition embedding groove is connected with the partition slide groove, and the support block is provided with a partition elastic member for pushing the partition block to slide into the partition embedding groove;

[0023] The partition block is provided with a partition slope on the side facing the control slider. When the control block slides in the direction away from the axis of the control slider, the partition block slides in the direction away from the control block under the cooperation of the partition slope and the inner wall of the partition groove. The end of the partition block away from the partition slope includes a plurality of reflective blocks of different colors, and the plurality of reflective blocks are arranged along the length direction of the partition block. The end of the support block away from the control block is provided with a reflector cooperating with the reflective block.

[0024] By adopting the above technical solution and setting the partition block, in actual use, the operator can shine a light toward the partition block from the opening of the cylinder, and the operator can judge the sliding distance of the control block according to the color feedback on the reflector, thereby facilitating the judgment of whether the sliding distances of the four control blocks are consistent, and can effectively test the service life of the internal support clamping tooling. The sliding of the partition block is driven by the sliding of the control block and the partition elastic member, which is convenient for controlling the timing of the sliding of the partition block.

[0025] Preferably, a locking block is slidably connected to the support block, a locking slide groove for sliding the locking block is provided on the support block, and a locking groove for the locking block to be embedded in after sliding is provided on the control block, when the sliding distance of the control block is the maximum, the locking slide groove is communicated with the locking groove, and the locking block cooperates with the locking groove to limit the sliding of the control block in a direction away from the axis of the control slide block;

[0026] A control gear is provided between the locking block and the partition block, and the control gear is rotatably connected to the support block. The locking block and the partition block are both provided with control racks meshing with the control gear. A locking inclined surface is provided on the side of the locking block away from the partition block. When the control block slides toward the axis of the control sliding block, the locking block slides in the direction away from the control block under the cooperation of the locking inclined surface and the inner wall of the locking groove.

[0027] By adopting the above technical solution, the locking block and the locking groove cooperate to restrict the sliding of the control block in the direction away from the axis of the control slider, further restricting the sliding length of the control block and ensuring the service life of the inner support clamping tooling. When the divided blocks slide in the direction away from the control block under the action of the control block, the locking block can slide in the direction of the control block under the action of gear transmission, without an additional driving source, facilitating the control of the sliding length and timing of the locking block. In addition, through the setting of the locking inclined surface, the locking block is not likely to affect the sliding of the control block in the direction of the axis of the control slider, and to a certain extent, it is convenient to release the locking of the locking block on the sliding of the control block.

[0028] Preferably, an anti-slip pad is provided at one end of the abutting block facing away from the control block.

[0029] By adopting the above technical solution, through the setting of the anti-slip pad, the friction between the abutting block and the inner wall of the cylinder is effectively increased, improving the effect of supporting the cylinder through the abutting block, and the cylinder is not likely to rotate relative to the support block.

[0030] In summary, the present application includes at least one of the following beneficial technical effects:

[0031] 1. Through the design of the cooperation between the control block and the control slider wedge, when the control slider slides axially along the support block, the four control blocks located on the support block can synchronously slide radially along the support block, and the sliding lengths of the four control blocks are the same, making the supporting force and position dimensions of the abutting block on the inner wall of the cylinder consistent, thereby improving the quality of supporting the cylinder.

[0032] 2. The control slider slides under the action of the control cylinder, effectively improving the speed and efficiency of supporting the inner wall of the cylinder through the inner support clamping tooling, and the magnitude of the force provided to the inner wall of the cylinder can be adjusted by the pressure of the control cylinder, enabling the inner support clamping tooling to adapt to cylinders of different diameters and wall thicknesses. The whole set of tooling is simple to operate, safe and reliable in operation, realizes automatic control, and improves the quality of supporting the inner wall of the cylinder.

[0033] 3. Through the setting of the limit baffle, on the one hand, it can limit the swaying of the control block in the direction away from the support block, and on the other hand, it can also provide protection for the control chute, making it difficult for external impurities or dust to move into the control chute, ensuring the stability and reliability of the sliding of the control block. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] Figure 1 is a front structural schematic diagram of the support block in the first embodiment of the present application.

[0035] Figure 2 is Figure 1 a schematic diagram of the overall structure in cooperation with the cylinder cut along the dotted line.

[0036] Figure 3 It is a schematic structural diagram when the sliding distance of the control block is minimized in the second embodiment of the present application.

[0037] Figure 4 It is a schematic structural diagram when the sliding distance of the control block is maximized in the second embodiment of the present application.

[0038] Description of reference numerals: 1. Support block; 11. Limit tube; 111. Limit cavity; 112. Limit baffle; 113. Connecting bolt; 12. Positioning rod; 121. Positioning chute; 2. Control block; 21. Control chute; 22. Abutting block; 221. Control bolt; 222. Control counterbore; 223. Control through hole; 224. Control threaded hole; 225. Fitting groove; 23. Limit plate; 231. Limit groove; 232. Limit bolt; 3. Control slider; 4. Control oil cylinder; 41. Housing; 42. Piston rod; 43. Fixed bolt; 44. Control flange; 5. Partition block; 51. Partition chute; 52. Partition fitting groove; 53. Partition spring; 54. Partition inclined surface; 55. Reflective block; 56. Reflective mirror; 6. Locking block; 61. Locking chute; 62. Locking groove; 63. Control gear; 64. Locking inclined surface. Detailed implementation manners

[0039] The following will further describe the present application in detail Figures 1-4 with reference to the accompanying drawings.

[0040] Embodiment 1. Embodiment 1 of the present application discloses an internal support clamping tool for processing thin-walled cylindrical bodies. Refer to Figure 1 and Figure 2 , including a support block 1, on which a plurality of control blocks 2 are slidably connected. The plurality of control blocks 2 are arranged in a circumferential array with the axis of the support block 1 as the center. In the embodiment of the present application, there are four control blocks 2, and the control blocks 2 slide along the radial direction of the support block 1. A control chute 21 for the control block 2 to slide is provided on the support block 1. One end of the control block 2 located in the control chute 21 is in a dovetail shape, and the shape of the control chute 21 is adapted to the control block 2. Through the dovetail shape of the control block 2, on the one hand, the stability of the control block 2 sliding on the support block 1 is improved, and on the other hand, the control block 2 is restricted from moving away from the support block 1, thus improving the stability of the control block 2 sliding on the support block 1.

[0041] Refer to Figure 1 and Figure 2, on the side of the control block 2 away from the control slider 3, there is a fixedly arranged abutting block 22. The side of the abutting block 22 away from the control block 2 is arc-shaped. By making the abutting block 22 detachably connected to the control block 2, the arc-shaped abutting block 22 adaptable to the inner diameter of the cylinder to be supported can be replaced, effectively increasing the contact area between the abutting block 22 and the inner wall of the cylinder, improving the effect of supporting the cylinder through the abutting block 22, and making the cylinder not easily deformed during the support process. The abutting block 22 and the control block 2 are fixed by two control bolts 221. The two control bolts 221 are symmetrically arranged on both sides of the midline of the abutting block 22, thereby improving the stability of the abutting block 22 fixed on the control block 2. A control counterbore 222 for accommodating the screw head of the control bolt 221 and a control through hole 223 for the control bolt 221 to pass through are provided on the abutting block 22. The control counterbore 222 is communicated with the control through hole 223. A control threaded hole 224 threadedly engaged with the control bolt 221 is provided on the support block 1. The abutting block 22 and the control block 2 are fixed by the control bolt 221, making the connection strength between the abutting block 22 and the control block 2 high and the installation convenient, thus facilitating the replacement of the adaptable abutting block 22 according to the size of the cylinder.

[0042] Refer to Figure 1 and Figure 2 , a limiting plate 23 is fixedly connected to the control block 2. A limiting groove 231 for accommodating the limiting plate 23 is provided on the control block 2. A fitting groove 225 for the limiting plate 23 to be fitted into is provided on the abutting block 22. When the abutting block 22 is fixed to the control block 2, one end of the limiting plate 23 is located in the limiting groove 231, and the other end of the limiting plate 23 is located in the fitting groove 225. The limiting plate 23 and the control block 2 are fixed by a limiting bolt 232. The cooperation between the limiting plate 23 and the fitting groove 225 provides positioning for the installation of the abutting block 22, thus facilitating the movement of the abutting block 22 until the control through hole 223 is communicated with the control threaded hole 224, and improving the disassembly and assembly efficiency of the abutting block 22. Both ends of the limiting plate 23 are arc-shaped, so that the limiting plate 23 can easily slide into and be embedded in the fitting groove 225, further improving the installation efficiency of the abutting block 22.

[0043] Let one end of the abutting block 22 away from the control block 2 be provided with an anti-slip pad. The anti-slip pad is made of rubber material. Through the setting of the anti-slip pad, the friction between the abutting block 22 and the inner wall of the cylinder is effectively increased, improving the effect of supporting the cylinder through the abutting block 22, and making the cylinder not easily rotate relative to the support block 1; the setting of rubber can also provide a certain buffering force, making the abutting block 22 not easily damage the inner wall of the cylinder, and improving the supporting effect of the abutting block 22 on the inner wall of the cylinder.

[0044] Refer to Figure 1 and Figure 2A control slider 3 for controlling the sliding movement of the control block 2 is slidably connected to the support block 1. The control slider 3 is coaxially arranged with the support block 1. The control slider 3 slides along the axial direction of the support block 1. The control block 2 and the control slider 3 are matched with an oblique wedge. The control slider 3 is set with a square inclined surface. In the embodiment of the present application, the angle between the inclined surface of the control slider 3 and the axis of the control slider 3 is 10 degrees. Through the design of the oblique wedge cooperation between the control block 2 and the control slider 3, when the control slider 3 slides along the axial direction of the support block 1, the four control blocks 2 located on the support block 1 can synchronously slide along the radial direction of the support block 1, and the sliding lengths of the four control blocks 2 are consistent, so that the supporting force and position size of the abutment block 22 on the inner wall of the cylinder are consistent, thereby improving the quality of support provided to the cylinder.

[0045] Reference Figure 1 and Figure 2 The support block 1 is provided with a control slide member for controlling the sliding movement of the control slide block 3. The control slide member is a control oil cylinder 4. The control oil cylinder 4 includes a housing 41 and a piston rod 42. The piston rod 42 is slidably arranged in the housing 41. One end of the housing 41 is in contact with the end face of the support block 1 away from the control block 2. The support block 1 and the housing 41 are fixed by fixing bolts 43. There are four fixing bolts 43. The four fixing bolts 43 are arranged in a circular array with the axis of the support block 1 as the center. The four fixing bolts 43 are staggered with the control block 2. A control flange 44 is provided at the other end of the housing 41. The control flange 44 is used to enable the control oil cylinder 4 to be fixed to the fixed shafts on the head and foot of the milling machine. The fixed shaft is rotatably arranged on the milling machine, so that the control oil cylinder 4 can be driven to rotate according to the rotation of the fixed shaft, and then the cylinder body can be driven to rotate, which is convenient for machining the flange surface on the cylinder body.

[0046] Reference Figure 2 The piston rod 42 is coaxially fixed with the control slide block 3. When the control slide block 3 slides under the action of the control cylinder 4, it can drive the control block 2 to slide along the control slide groove 21, effectively improving the speed and efficiency of providing support to the inner wall of the cylinder through the internal support clamping tooling, and the magnitude of the force providing support to the inner wall of the cylinder can be adjusted by the pressure of the control cylinder 4, so that the internal support clamping tooling can adapt to cylinders of different diameters and wall thicknesses. The whole set of tooling is simple to operate, safe and reliable, and solves the problem of elastic deformation of thin-walled cylinders during clamping.

[0047] Reference Figure 1 and Figure 2, a limiting tube 11 is coaxially arranged on the supporting block 1. A limiting cavity 111 for fitting the limiting tube 11 is arranged on the supporting block 1. A limiting baffle 112 is coaxially and fixedly arranged at one end of the limiting tube 11 away from the control slider 3. The limiting baffle 112 is in contact with both the supporting block 1 and the control block 2. When the control slider 3 slides to fit with the limiting tube 11, the sliding distance of the control block 2 is the largest. Through the setting of the limiting baffle 112, on the one hand, it can limit the shaking of the control block 2 in the direction away from the supporting block 1, and on the other hand, it can also provide protection for the control chute 21, so that external impurities or dust are not easily moved into the control chute 21, ensuring the stability and reliability of the sliding of the control block 2; through the setting of the limiting tube 11, the maximum sliding distance of the control slider 3 can be effectively limited, ensuring the service life of the internal support clamping tooling. The limiting baffle 112 and the supporting block 1 are fixed by connecting bolts 113.

[0048] Referring to Figure 2 , a positioning rod 12 corresponding to the control block 2 is fixedly arranged on the supporting block 1. The positioning rod 12 is fixedly connected to the control block 2 by threads. One end of the positioning rod 12 is in contact with the housing 41 of the control oil cylinder 4. The other end of the positioning rod 12 penetrates through the supporting block 1 and extends into the control chute 21. A positioning chute 121 for the positioning rod 12 to slide is arranged on the control block 2. With the cooperation of the positioning rod 12 and the positioning chute 121, the sliding length of the control block 2 is further limited, ensuring the service life of the internal support clamping tooling.

[0049] Embodiment 2 is different from Embodiment 1 in that, referring to Figure 3 and Figure 4 , a control member for judging the sliding length of the control block 2 is arranged on the supporting block 1. The control member includes a partition block 5 slidably arranged on the supporting block 1. The partition block 5 is arranged corresponding to the control block 2. A partition chute 51 for the partition block 5 to slide is penetrated and arranged on the supporting block 1. A partition fitting groove 52 for the partition block 5 to fit after sliding is arranged on the control block 2. When the sliding distance of the control block 2 is the smallest, the partition fitting groove 52 is communicated with the partition chute 51. A partition elastic member for pushing the partition block 5 to slide into the partition fitting groove 52 is arranged on the supporting block 1. In the embodiment of the present application, the partition elastic member is a partition spring 53. One end of the partition spring 53 is fixed to the supporting block 1, and the other end of the partition spring 53 is fixed to the partition block 5. The partition block 5 can slide into the partition fitting groove 52 under the action of the partition spring 53.

[0050] Referring to Figure 3 and Figure 4The partition block 5 is provided with a partition slope 54 on the side facing the control slider 3. When one end of the partition block 5 provided with the partition slope 54 is embedded in the partition embedding groove 52 under the action of the partition spring 53, the other end of the partition block 5 is completely received in the partition slide groove 51. When the control block 2 slides in the direction away from the axis of the control slider 3, the partition block 5 slides in the direction away from the control block 2 under the cooperation of the partition slope 54 and the inner wall of the partition embedding groove 52. Then, the end of the partition block 5 not provided with the partition slope 54 slides to the outside of the partition slide groove 51, so that the end of the partition block 5 away from the partition slope 54 includes a plurality of reflective blocks 55 of different colors. The number of reflective blocks 55 depends on the sliding length of the partition block 5. When the sliding distance of the control block 2 is the longest, all the partition blocks 5 are located outside the partition slide groove 51.

[0051] Reference Figure 3 and Figure 4 The reflective block 55 is made of resin material, and the dye used to dye the reflective block 55 has a certain fluorescent effect. A reflector 56 cooperating with the reflective block 55 is provided at one end of the support block 1 away from the control block 2. In actual use, the operator can shine a light from the opening of the cylinder toward the partition block 5. The operator can judge the sliding distance of the control block 2 according to the color feedback on the reflector 56, so as to facilitate the judgment of whether the sliding distances of the four control blocks 2 are consistent, and can effectively test the service life of the internal support clamping tooling.

[0052] Reference Figure 3 and Figure 4 The support block 1 is also slidably connected with a locking block 6. The support block 1 is provided with a locking groove 61 for the locking block 6 to slide. The control block 2 is provided with a locking groove 62 for the locking block 6 to slide and embed. When the sliding distance of the control block 2 is the largest, the locking groove 61 is connected with the locking groove 62. The locking block 6 cooperates with the locking groove 62 to limit the sliding of the control block 2 in the direction away from the axis of the control slide block 3, further limiting the sliding length of the control block 2 and ensuring the service life of the internal support clamping tooling. A control gear 63 is provided between the locking block 6 and the partition block 5. The control gear 63 is rotatably connected to the support block 1. The locking block 6 and the partition block 5 are both provided with a control rack meshing with the control gear 63. When the partition block 5 slides in the direction away from the control block 2 under the action of the control block 2, the locking block 6 can slide in the direction of the control block 2 under the action of the gear transmission. No additional driving source is required, which is convenient for controlling the sliding length and timing of the locking block 6.

[0053] Reference Figure 3 and Figure 4, a locking inclined surface 64 is provided on one side of the locking block 6 facing away from the partition block 5. When the control block 2 slides in the direction towards the axis of the control slider 3, the locking block 6 slides away from the control block 2 under the cooperation of the locking inclined surface 64 and the inner wall of the locking groove 62. Through the setting of the locking inclined surface 64, the locking block 6 is not likely to affect the sliding of the control block 2 in the direction towards the axis of the control slider 3, and to a certain extent, it is convenient to release the locking of the control block 2 by the locking block 6.

[0054] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereby. Therefore, all equivalent changes made according to the structure, shape, and principle of the present application should be covered within the protection scope of the present application.

Claims

1. Internal support clamping tooling for thin-walled cylinder processing, characterized in that: The invention comprises a support block (1), a plurality of control blocks (2) are slidably connected to the support block (1), the plurality of control blocks (2) are arranged in a circular array with the axis of the support block (1) as the center, the control block (2) slides in the radial direction of the support block (1), a contact block (22) is provided on the side of the control block (2) away from the control slide block (3), and the side of the contact block (22) away from the control block (2) is arranged in an arc shape; The support block (1) is provided with a control slide groove (21) for the control block (2) to slide, the support block (1) is slidably connected with a control slide block (3) for controlling the sliding of the control block (2), the control slide block (3) is coaxially arranged with the support block (1), the control slide block (3) slides along the axial direction of the support block (1), the control block (2) and the control slide block (3) are wedge-matched, and the support block (1) is provided with a control slide member for controlling the sliding of the control slide block (3); The control slide member is a control oil cylinder (4), which comprises a housing (41) and a piston rod (42). The piston rod (42) is slidably arranged in the housing (41). One end of the housing (41) is in contact with the end surface of the support block (1) facing away from the control block (2). The other end of the housing (41) is provided with a control flange (44) for connecting with other parts. The piston rod (42) is coaxially connected with the control slide block (3). The support block (1) is provided with a control member for determining the sliding length of the control block (2), the control member comprising a partition block (5) slidably arranged on the support block (1), the support block (1) is provided with a partition sliding groove (51) for the partition block (5) to slide, the control block (2) is provided with a partition embedding groove (52) for the partition block (5) to be embedded after sliding, when the sliding distance of the control block (2) is the smallest, the partition embedding groove (52) is connected with the partition sliding groove (51), and the support block (1) is provided with a partition elastic member for pushing the partition block (5) to slide towards the partition embedding groove (52); The partition block (5) is provided with a partition slope (54) on one side facing the control slide block (3); when the control block (2) slides in a direction away from the axis of the control slide block (3), the partition block (5) slides in a direction away from the control block (2) under the cooperation of the partition slope (54) and the inner wall of the partition embedding groove (52); the end of the partition block (5) away from the partition slope (54) comprises a plurality of reflective blocks (55) of different colors, and the plurality of reflective blocks (55) are arranged along the length direction of the partition block (5); and the end of the support block (1) away from the control block (2) is provided with a reflector (56) cooperating with the reflective block (55); The support block (1) is slidably connected with a locking block (6), the support block (1) is provided with a locking groove (61) for the locking block (6) to slide, the control block (2) is provided with a locking groove (62) for the locking block (6) to slide and embed, when the sliding distance of the control block (2) is the maximum, the locking groove (61) is communicated with the locking groove (62), and the locking block (6) cooperates with the locking groove (62) to limit the sliding of the control block (2) in a direction away from the axis of the control slide block (3); A control gear (63) is provided between the locking block (6) and the partition block (5); the control gear (63) is rotatably connected to the support block (1); a control rack meshing with the control gear (63) is provided on both the locking block (6) and the partition block (5); a locking inclined surface (64) is provided on the side of the locking block (6) away from the partition block (5); when the control block (2) slides in the direction of the axis of the control slide block (3), the locking block (6) slides in the direction away from the control block (2) under the cooperation of the locking inclined surface (64) and the inner wall of the locking groove (62).

2. The inner support clamping tool for processing thin-walled cylinders according to claim 1 is characterized in that: A limiting tube (11) is coaxially arranged on the support block (1), a limiting cavity (111) for the limiting tube (11) to be engaged is arranged on the support block (1), a limiting baffle (112) is coaxially arranged on one end of the limiting tube (11) away from the control slide block (3), the limiting baffle (112) is in contact with the support block (1) and the control block (2), and when the control slide block (3) slides to be in contact with the limiting tube (11), the sliding distance of the control block (2) is maximized.

3. The inner support clamping tool for processing thin-walled cylinders according to claim 1 is characterized in that: The support block (1) is provided with a positioning rod (12) corresponding to the control block (2); the positioning rod (12) is located in a control slide groove (21); and the control block (2) is provided with a positioning slide groove (121) for the positioning rod (12) to slide.

4. The inner support clamping tool for processing thin-walled cylinders according to claim 1 is characterized in that: The abutment block (22) is detachably connected to the control block (2); the abutment block (22) and the control block (2) are fixed via a control bolt (221); the abutment block (22) is provided with a control countersunk hole (222) for accommodating a screw head of the control bolt (221) and a control through hole (223) for the control bolt (221) to pass through; and the support block (1) is provided with a control threaded hole (224) threadably matched with the control bolt (221).

5. The inner support clamping tool for processing thin-walled cylinders according to claim 4 is characterized in that: The control block (2) is provided with a limit plate (23), the control block (2) is provided with a limit groove (231) for accommodating the limit plate (23), the abutment block (22) is provided with an engaging groove (225) for engaging the limit plate (23), one end of the limit plate (23) away from the limit tube (11) is located in the engaging groove (225), and both ends of the limit plate (23) are arranged in an arc shape.

6. The inner support clamping tool for processing thin-walled cylinders according to claim 1 is characterized in that: The control block (2) is arranged in a dovetail shape at one end of the control slide groove (21), and the shape of the control slide groove (21) is adapted to the control block (2).

7. The inner support clamping tool for processing thin-walled cylinders according to claim 1 is characterized in that: An end of the abutment block (22) facing away from the control block (2) is provided with a friction-enhancing pad.

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