Adjustable core disc clamp for machining workpieces with inner cavity ring ribs

Abstract

The utility model belongs to the technical field of machine tool machining, and particularly relates to an adjustable core plate clamp for machining a workpiece containing an inner cavity ring rib, which comprises a first core body, a second core body, a plurality of top blocks, a stud assembly, a pressing plate and a plurality of pressing strips. The two ends of the interior of a workpiece are supported and clamped through the multiple ejection blocks and the multiple pressing strips, and circles where the supporting faces of the multiple ejection blocks are located can be adjusted to be different in diameter so as to adapt to workpieces of different diameters. The circles where the pressing strips are located can be adjusted to have different diameters so as to adapt to workpieces with different diameters; the diameters of circles where the multiple ejector blocks and the multiple pressing strips are located can be different so as to adapt to the variable-diameter cylinder workpieces. And in addition, the stud assembly is telescopic, so that the device can adapt to workpieces with different heights. The clamp is high in applicability and can adapt to diameter cylinders and variable-diameter cylinders of different sizes and workpieces of different heights.

Description

TECHNICAL FIELD

[0001] The utility model belongs to lathe processing technical field, especially relate to the small batch production, general type, finish machining lathe worker and milling tool holder clamp for containing the adjustable core disc clamp of inner chamber ring muscle work piece processing. BACKGROUND

[0002] Thin-walled parts are widely used in various industrial mechanical products due to their light weight, less material, compact structure and other characteristics, and some specific industries need some thin-walled parts to meet the use requirements of the equipment. Thin-walled parts are a difficult problem in machining, and the machining of thin-walled parts is difficult. Selecting appropriate clamping method or using reasonable auxiliary tooling can effectively reduce the deformation caused by clamping, thereby ensuring the machining accuracy of thin-walled parts.

[0003] In the prior art, as shown in Chinese patent CN217045472, the clamp cannot adapt to workpieces of different diameters or variable diameters, and a clamp needs to be separately made for each size of part, which has low applicability. UTILITY MODEL CONTENT

[0004] In view of the deficiencies in the related art, the utility model provides an adjustable core disc clamp for machining workpieces containing inner cavity ring muscle, which is suitable for workpieces of different diameters or variable diameters and different heights, and improves the applicability of the clamp.

[0005] The utility model provides an adjustable core disc clamp for machining workpieces containing inner cavity ring muscle, which comprises: a first core body, the end face of the first core body is connected with a machine tool, and further comprises:

[0006] A second core body is annular in shape, and the end face of the second core body is connected with the end face of the first core body.

[0007] A plurality of top blocks are movably connected to the second core body, the plurality of top blocks are concentric, and the plurality of top blocks can slide along the diameter direction of the second core body. Each top block comprises a support surface, and the support surface is in contact with the inner wall of the workpiece to be clamped.

[0008] A stud assembly is connected to the first core body and the second core body at one end.

[0009] A pressing plate is connected to the other end of the stud assembly.

[0010] A plurality of pressing strips are movably connected to the pressing plate in a radial manner, and the pressing strips slide in the pressing plate along the length direction.

[0011] Among them, the plurality of top blocks are slid and / or the plurality of pressing strips are pushed and pulled to adapt to workpieces of different sizes.

[0012] In other embodiments, the second core body further includes:

[0013] Multiple first grooves are located at the edges of the second core body, and the first grooves are adapted to the top block.

[0014] In other embodiments, it also includes:

[0015] Multiple screws are inserted into the first sliding groove, and the screws are pushed to push the top block to slide.

[0016] A motor is connected to a plurality of the screws, and the motor pushes the screws to slide outward along the diameter direction of the second core body.

[0017] In other embodiments, the stud assembly is a retractable stud assembly.

[0018] In other embodiments, the stud assembly further includes:

[0019] A sleeve stud is fixedly connected to the second core body, and the inner surface of the sleeve stud is provided with a first thread.

[0020] A stud body is fixedly connected to the pressure plate. The outer surface of the stud body is provided with a second thread, which is adapted to the first thread so that the stud body can be screwed into the sleeve stud at different positions to adjust the length of the stud assembly.

[0021] In other embodiments, the pressure plate has an "I" shaped cross-section, and the upper and lower horizontal sides of the "I" shaped cross-section are provided with a second sliding groove, which forms four insertion slots with the end face of the pressure plate; the number of pressure strips is four, which are respectively inserted into the insertion slots.

[0022] In other embodiments, the surface of the pressure strip is provided with a serrated structure to enhance the friction between the pressure strip and the pressure plate.

[0023] In other embodiments, the workpiece is a thin-walled workpiece, the workpiece is cylindrical or variable-diameter cylindrical in shape, and the workpiece contains internal ribs.

[0024] In other embodiments, the number of the first grooves is four, evenly distributed around the second core body, and the number of the top blocks is four.

[0025] In other embodiments, it also includes:

[0026] Multiple sensors are located on the surface of the support surface to detect the positional relationship between the top block and the workpiece to be clamped.

[0027] Based on the above technical scheme, the diameter of the circle where the plurality of top blocks are located can be adjusted to adapt to workpieces of different diameters; the diameter of the circle where the plurality of pressing strips are located can be adjusted to adapt to workpieces of different diameters; the diameters of the circles where the plurality of top blocks and the plurality of pressing strips are located can be different to adapt to workpieces of different diameters;

[0028] 2. The stud assembly is telescopic to adapt to workpieces of different heights. BRIEF DESCRIPTION OF DRAWINGS

[0029] The accompanying drawings, which are included to provide a further understanding of the present application and are incorporated in and constitute a part of this application, illustrate embodiments of the present application and serve to explain the present application. In the drawings:

[0030] Figure 1 It is a perspective view of the adjustable core disc clamp for machining the workpiece containing the inner cavity ring rib according to the embodiments of the present application;

[0031] Figure 2 It is a top block structure schematic view according to the embodiments of the present application;

[0032] Figure 3 It is a first core body structure perspective view according to the embodiments of the present application;

[0033] Figure 4 It is a second core body structure perspective view according to the embodiments of the present application;

[0034] Figure 5 It is Figure 1 A view in the direction of A;

[0035] Figure 6 It is a stud assembly perspective view according to the embodiments of the present application;

[0036] Figure 7 It is a pressing plate perspective view according to the embodiments of the present application;

[0037] Figure 8 It is a pressing strip perspective view according to the embodiments of the present application;

[0038] In the drawings:

[0039] The first core body 1, the second core body 2, the first sliding groove 201, the screw 202, the top block 3, the support surface 301, the stud assembly 4, the sleeve stud 401, the stud body 402, the pressing plate 5, the second sliding groove 501, the socket 5011, the pressing strip 6. DETAILED DESCRIPTION

[0040] With reference to the drawings of the embodiments of the present application, the technical solutions in the embodiments will be clearly and completely described below. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments of the present application, all other embodiments obtained by those skilled in the art without creative work fall within the scope of the present application.

[0041] In the description of the present application, it should be understood that the terms "center", "transverse", "longitudinal", "upper", "lower", "top", "bottom", "inner", "outer" and the like indicate the orientation or positional relationship only for the purpose of facilitating the description of the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation of the present application.

[0042] The terms "first", "second" are only for the purpose of description, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the technical features indicated. Therefore, the features defined with "first", "second" can explicitly or implicitly include one or more of the features.

[0043] In the description of the present application, it should be noted that, unless otherwise explicitly specified and limited, the terms "mounting", "connecting", "connection" should be understood broadly, for example, it can be fixed connection, or detachable connection, or integrally connected; it can be directly connected, or indirectly connected through an intermediate medium, or the communication between two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0044] As shown in Figures 1-3 The utility model provides a adjustable core disc clamp for containing inner chamber ring muscle work piece processing, include: First core body 1, second core body 2, top block 3, stud assembly 4, pressboard 5 and press strip 6, wherein,

[0045] The first core body 1 end surface is connected with the chuck of the machine tool, so as to connect and fix the clamp with the machine tool.

[0046] The second core body 2 is annular as a whole, and the end surface of the second core body 2 is connected with the end surface of the first core body 1.

[0047] A plurality of top blocks 3 are movably connected to the second core body 2, the plurality of top blocks 3 are concentric, and the plurality of top blocks 3 are slidable in the diameter direction of the second core body 2. Each top block 3 comprises a support surface 301 which is in contact with the inner wall of the workpiece to be clamped. It can be understood that the circle in which the plurality of support surfaces 301 are located is in contact with the inner wall of the workpiece to be clamped, so as to support the workpiece to be clamped. The position of the top block 3 on the second core body 2 is adjusted so that the circle in which the support surface 301 is located has different diameters to adapt to workpieces to be clamped of different diameters.

[0048] A stud assembly 4 is connected to one end of the first core body 1 and the second core body 2. It can be understood that the first core body 1 and the second core body 2 are fixed to one end of the stud assembly 4.

[0049] A pressing plate 5 is connected to the other end of the stud assembly 4.

[0050] A plurality of pressing strips 6 are movably connected to the pressing plate 5 in a radial manner, and the pressing strips 6 slide in the length direction in the pressing plate 5. It can be understood that the plurality of pressing strips 6 are used to support the workpiece to be clamped, especially the workpiece to be clamped which contains an inner cavity ring. The pressing strip 6 is pressed against the inner pressure ring, and the pressing strip 6 is pulled out so that the length of the pressing strip 6 extending out of the pressing plate 5 is different to adapt to workpieces of different sizes.

[0051] Further, the top block 3 cooperates with the pressing strip 6, the top block 3 supports one end of the workpiece to be clamped, and the pressing strip 6 supports the other end of the workpiece to be clamped. Both ends are supported, so that the workpiece to be clamped is stably supported. The diameters of the circles in which the top block 3 and the pressing strip 6 are located can be the same or different to adapt to more sizes of the workpiece to be clamped.

[0052] The embodiment provides an adjustable core disc clamp for machining a workpiece containing an inner cavity ring. The diameters of the circles in which the plurality of top blocks are located and the diameters of the circles in which the plurality of pressing strips are located are adjusted to adapt to workpieces of different sizes.

[0053] As shown in FIG. 1, Figure 4 In other embodiments, the second core body 2 further comprises:

[0054] A plurality of first sliding grooves 201 are respectively located at the edges of the second core body 2, and the first sliding grooves 201 are matched with the top blocks 3. It can be understood that the top blocks 3 are installed in the first sliding grooves 201, and the top blocks 3 slide in the first sliding grooves 201. When the top blocks 3 slide in the first sliding grooves 201, they are not easy to be misplaced, and it is convenient to make the plurality of top blocks concentric. The embodiment realizes the installation of the top blocks and the adjustment of the positions of the top blocks and the second core body.

[0055] As shown in FIG. 1, Figures 4-5 In other embodiments, a plurality of screws 302 and a motor are further included, wherein,

[0056] Multiple screws 202 are respectively inserted into the first sliding groove 201, and the screws 202 are pushed to push the top block 3 to slide;

[0057] A motor (not shown in the attached diagram) is connected to multiple screws 202. The motor pushes the screws 202 to slide outward along the diameter of the second core body 2. The motor can be mounted on the end face of the first core body, but is not limited to this. It is understood that by driving multiple screws with a motor, the top block can be pushed simultaneously to achieve concentricity, and the distance pushed by the motor is more precise. This embodiment achieves more precise positioning when the top block is concentric.

[0058] like Figure 6 As shown, in other embodiments, the stud assembly 4 is a telescopic stud assembly. It is understood that the telescopic design allows adjustment of the overall length of the stud assembly 4 to accommodate workpieces of different lengths. This embodiment improves the applicability of the device.

[0059] like Figure 6 As shown, in other embodiments, the stud assembly 4 further includes:

[0060] A sleeve stud 401 is fixedly connected to the second core body 2, and the inner surface of the sleeve stud 401 is provided with a first thread.

[0061] A stud body 402 is fixedly connected to the pressure plate 5. The outer surface of the stud body 402 is provided with a second thread, which matches the first thread, allowing the stud body 402 to be screwed into the sleeve stud 401 at different positions to adjust the length of the stud assembly 4. It can be understood that the first thread is an internal thread, and the second thread is an external thread. The second thread is screwed into the first thread for a tight lock, and different positions of the second thread adjust the overall height of the stud assembly 4. This embodiment achieves the adjustment of the stud assembly height to accommodate workpieces of different sizes to be clamped.

[0062] like Figure 7 As shown, in other embodiments, the pressure plate 5 has an "I"-shaped cross-section, with a second sliding groove 501 provided in both the upper and lower horizontal sides of the "I" shape. The second sliding groove 501 and the end face of the pressure plate form four insertion slots 5011. Four pressure strips 6 are inserted into the insertion slots 5011 respectively. It can be understood that the pressure strips 6 are inserted at different positions in the second sliding grooves 501, i.e., the lengths of the pressure strips 6 extending beyond the pressure plate 5 are different, to adjust the size of the workpiece to be clamped. Simultaneously, the pressure strips are strip-shaped, which can abut against the inner ribs of the workpiece to be clamped, resulting in a more secure clamping. This solution achieves convenient manufacturing and installation of the pressure plate and pressure strips.

[0063] likeFigure 8 As shown, in other embodiments, the surface of the pressure strip 6 is provided with a serrated structure to enhance the friction between the pressure strip 6 and the pressure plate 5.

[0064] like Figure 1 As shown, in other embodiments, the workpiece is a thin-walled workpiece, and the workpiece has a cylindrical or variable-diameter cylindrical shape, with internal ribs. It can be understood that when the diameter of the circle containing the multiple top blocks 3 is the same as the diameter of the circle containing the multiple pressure strips 6, the workpiece is a cylindrical body with a constant diameter. When the diameter of the circle containing the multiple top blocks 3 is greater than or less than the diameter of the circle containing the multiple pressure strips 6, it is a cylindrical body with a variable diameter.

[0065] like Figure 1 As shown, in other embodiments, there are four first slide grooves 201, evenly distributed around the second core body, and four top blocks 3. It can be understood that each of the four first slide grooves 201 contains a top block 3, and the four supporting surfaces (top, bottom, left, and right) support the workpiece to be clamped.

[0066] like Figure 1 As shown, in other embodiments, it also includes:

[0067] Multiple sensors, each located on the surface of the support surface 301, are used to detect the positional relationship between the top block 3 and the workpiece to be clamped. This solution achieves high accuracy in the top block ejection.

[0068] By examining the adjustable mandrel fixture of this invention for machining workpieces with internal cavities and ring ribs, it can be seen that this invention has at least one or more of the following advantages:

[0069] 1. This utility model adapts to workpieces of different diameters by adjusting the diameter of the circles where multiple top blocks are located and the diameter of the circle where the pressure strip is located;

[0070] 2. This utility model uses a telescopic stud assembly to adjust the overall height of the fixture to accommodate workpieces of different heights.

[0071] Finally, it should be noted that the various embodiments in this specification are described in a progressive manner, with each embodiment focusing on the differences from other embodiments. The same or similar parts between the various embodiments can be referred to each other.

[0072] The above examples are only used to illustrate the technical solutions of the present application and not to limit them; although the present application has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that the specific embodiments of the present application can be modified or some technical features can be replaced by equivalent ones; without departing from the spirit of the technical solutions of the present application, all of them should be covered in the technical solution range of the present application claimed.

Claims

1. An adjustable core plate fixture for machining a workpiece having a lumen annular rib, comprising: The first core body, the end face of which is connected to the machine tool, is characterized in that it further includes: The second core body is ring-shaped, and the end face of the second core body is connected to the end face of the first core body. Multiple top blocks are movably connected to the second core body. The multiple top blocks are concentric and can slide along the diameter direction of the second core body. Each top block includes a support surface, which is in contact with the inner wall of the workpiece to be clamped. A stud assembly, one end of which is connected to the first core body and the second core body; A pressure plate is connected to the other end of the stud assembly; Multiple pressure strips are radially and movably connected to the pressure plate, and the pressure strips slide within the pressure plate along their length. The multiple top blocks are slidable and / or the multiple pressure strips are pushed and pulled to accommodate workpieces of different sizes.

2. The adjustable chuck for machining of workpieces containing internal annular ribbing according to claim 1, characterized in that, The second core body further includes: Multiple first grooves are located at the edges of the second core body, and the first grooves are adapted to the top block.

3. The adjustable chuck for machining a workpiece having a cavity with a ring rib according to claim 2, wherein Also includes: Multiple screws are inserted into the first sliding groove, and the screws are pushed to push the top block to slide. A motor is connected to a plurality of the screws, and the motor pushes the screws to slide outward along the diameter direction of the second core body.

4. The adjustable chuck for machining of workpieces containing internal annular ribbing according to claim 1, wherein, The stud assembly is a retractable stud assembly.

5. The adjustable chuck for machining workpieces containing internal annular ribbing according to claim 4, wherein, The stud assembly further includes: A sleeve stud is fixedly connected to the second core body, and the inner surface of the sleeve stud is provided with a first thread. The stud body is fixedly connected to the pressure plate. The outer surface of the stud body is provided with a second thread, which is adapted to the first thread so that the stud body can be screwed into the sleeve stud at different positions to adjust the length of the stud assembly.

6. The adjustable chuck for machining of workpieces containing internal annular ribbing according to claim 1, wherein, The pressure plate has an "I" shaped cross section, and a second sliding groove is provided in the upper and lower horizontal sides of the "I" shaped cross section. The second sliding groove and the end face of the pressure plate form four insertion slots. There are four pressure strips, which are inserted into the insertion slots respectively.

7. The adjustable chuck for machining a workpiece having a lumen annular ridge according to claim 1, wherein, The surface of the pressure strip is provided with a serrated structure to enhance the friction between the pressure strip and the pressure plate.

8. The adjustable chuck for machining of workpieces containing internal annular ribbing of claim 1, wherein, The workpiece is a thin-walled workpiece, and the workpiece is cylindrical or variable diameter cylindrical in shape, and the workpiece contains internal cavity ribs.

9. The adjustable chuck for machining of workpieces containing internal annular ribbing of claim 2, wherein, There are four first sliding grooves, evenly distributed around the second core body, and there are four top blocks.

10. The adjustable chuck for machining a workpiece having a lumen annular ridge according to claim 3, wherein, Also includes: Multiple sensors are located on the surface of the support surface to detect the positional relationship between the top block and the workpiece to be clamped.

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