Thin-wall part inner hole machining clamp for numerical control lathe

Abstract

The thin-wall part inner hole machining clamp comprises a supporting ring and a plurality of clamping assemblies, the inner wall of the supporting ring is rotationally connected with an upper rotating plate, a lower rotating plate is arranged below the upper rotating plate, the upper rotating plate and the lower rotating plate are provided with corresponding sliding ways, the inner walls of the sliding ways are connected with sliding blocks in a sliding mode, and the sliding blocks are connected with the clamping assemblies in a sliding mode. A positioning block is installed on the two sliding blocks located on the lower portion, a rotating sleeve is rotationally connected to the positioning block, the rotating sleeve is located on the other two sliding blocks, a bearing plate is arranged below the supporting ring, a mounting frame is fixedly connected to the bottom end of the bearing plate, and a fixing plate is installed at the center of the lower rotating plate; the rotating sleeve is driven by rotation of the upper rotating plate and the lower rotating plate to move and rotate in the hole, the problem of too much or too little polishing in the hole can be found in time in combination with scale marks on the measuring rod and the attaching condition of the rotating sleeve and the interior of the hole, and quality detection can be conveniently conducted on a workpiece subjected to polishing machining in the thin-wall hole.

Description

Technical Field

[0001] This utility model relates to the field of CNC lathe technology, and in particular to a fixture for machining the inner hole of thin-walled parts on a CNC lathe. Background Technology

[0002] After the internal hole of a thin-walled part is machined, the existing fixtures for machining the internal hole of the thin-walled part have problems. Due to the insufficient rigidity of the thin-walled part and the need for continuous displacement of the workpiece, the cylindrical thin-walled part is easily affected by the cutting force and vibrates. This can easily lead to unstable grinding amplitude during the internal grinding process. Furthermore, after fixing the thin-walled part, the existing fixtures make it difficult to determine whether the internal hole machining quality is up to standard and cannot detect out-of-tolerance situations in a timely and accurate manner. This results in an increased scrap rate, which increases production costs and production cycle. Utility Model Content

[0003] This utility model aims to at least partially solve one of the technical problems in the related art.

[0004] Therefore, the purpose of this utility model is to propose a fixture for machining the inner hole of thin-walled parts on a CNC lathe, which can solve the problem of not being able to detect out-of-tolerance situations in the inner hole machining process in a timely and accurate manner.

[0005] To achieve the above objectives, this utility model proposes a fixture for machining the inner hole of thin-walled parts on a CNC lathe, comprising a support ring and several clamping components. An upper rotating plate is rotatably connected to the inner wall of the support ring, and a lower rotating plate is provided below the upper rotating plate. Corresponding slide rails are provided on the upper and lower rotating plates. Slider blocks are slidably connected to the inner wall of the slide rails. Positioning blocks are installed on the two lower sliders, and rotating sleeves are rotatably connected to the positioning blocks. The rotating sleeves are located on the other two sliders.

[0006] The support ring is provided with a support plate below it, and a mounting frame is fixedly connected to the bottom end of the support plate. A fixing plate is installed at the center of the lower rotating plate, and a lower motor for driving the fixing plate is fixedly connected to the bottom end of the mounting frame.

[0007] A positioning block is installed on the top of the rotating sleeve, and a measuring rod is connected between the rotating sleeves. The measuring rod has a connecting hole that matches the rotating sleeve.

[0008] The utility model discloses a thin -walled part inner hole processing clamp for numerical control lathe, when the polishing work of the inner hole of the cylindrical thin -walled part is processed, can through the rotation of the upper swing plate and lower swing plate on the part, the position of rotating sleeve is adjusted flexibly, makes it and the polishing piece dislocation, after polishing, the sliding adjusting function of the sliding block in the inner wall of slide, the interval of rotating sleeve can correspond with the size after polishing in the hole, and fixed position support in the inner wall of hole, through the rotation of upper swing plate and lower swing plate drive rotating sleeve displacement, rotation in hole, combines the scale line on the measuring rod and the sticking situation of rotating sleeve and hole, can discover the problem that the hole is polished too much or too little in time, the quality detection of the workpiece of thin -walled hole polishing processing is convenient, and the quality after processing meets the requirement.

[0009] In addition, the thin-walled part inner hole processing clamp for numerical control lathe provided in the utility model can also have the following additional technical features:

[0010] Specifically, a limiting groove is arranged at the connection between the inner wall of the slide and the sliding block, and a limiting block is fixedly connected at the connection between the sliding block and the limiting groove.

[0011] Specifically, two upper motors corresponding to the slide are fixedly connected to the outer wall of the lower swing plate, an adjusting rod is fixedly connected to the driving end of the upper motor, and the two adjusting rods are threadedly connected with the two sliding blocks, respectively.

[0012] Specifically, the supporting frame is connected between the supporting plate and the supporting ring, and the mounting frame is dislocated from the lower swing plate.

[0013] Specifically, an installation ring is arranged above the supporting plate, a plurality of fixed rods are fixedly connected to the inner wall of the installation ring, a sliding plate is slidably connected to the fixed rod, the sliding plate is dislocated from the clamping assembly, and the sliding plate is slidably connected with the supporting ring.

[0014] The additional aspects and advantages of the utility model will be partially given in the following description, some will become obvious from the following description, or be understood through the practice of the utility model. BRIEF DESCRIPTION OF DRAWINGS

[0015] The above and / or additional aspects and advantages of the utility model will become apparent and more readily appreciated from the following description of the embodiments, with reference to the following drawings, in which:

[0016] Figure 1 It is the overall structure schematic view of the utility model;

[0017] Figure 2 It is the split structure schematic view of the utility model;

[0018] Figure 3 It is the cross section structure schematic view of the utility model;

[0019] Figure 4 For the utility model Figure 2 The structure schematic diagram of the local amplification at A in the middle.

[0020] As shown in the figure:

[0021] 1, support ring, 11, clamping assembly, 2, upper turning plate, 21, lower turning plate, 22, slide, 23, limiting groove, 24, sliding block, 241, limiting block, 25, fixed plate, 251, lower motor, 26, mounting bracket, 27, upper motor, 271, adjusting rod, 28, rotating sleeve, 281, positioning block, 29, measuring rod, 291, connecting clamping hole, 3, supporting plate, 31, mounting ring, 32, fixed rod, 33, sliding plate, 34, support frame. DETAILED DESCRIPTION

[0022] The embodiments of the utility model are described in detail below, and the examples of the embodiments are shown in the drawings, wherein the same or similar reference signs represent the same or similar elements or elements with the same or similar functions throughout. The embodiments described below by referring to the drawings are exemplary and are intended to explain the utility model, and cannot be understood as limiting the utility model. On the contrary, the embodiments of the utility model include all changes, modifications and equivalents falling within the spirit and scope of the appended claims.

[0023] The thin-wall part inner hole machining clamp for the numerical control lathe is described below in combination with the drawings.

[0024] As Figures 1-4 shown, the thin-wall part inner hole machining clamp for the numerical control lathe of the utility model embodiment can include a support ring 1 and a plurality of clamping assemblies 11, characterized in that the inner wall of the support ring 1 is rotationally connected with an upper turning plate 2, a lower turning plate 21 is arranged below the upper turning plate 2, corresponding slides 22 are arranged on the upper turning plate 2 and the lower turning plate 21, sliding blocks 24 are slidably connected with the inner walls of the slides 22, positioning blocks 281 are arranged on the two sliding blocks 24 below, rotating sleeves 28 are rotationally connected with the positioning blocks 281, and the rotating sleeves 28 are arranged on the other two sliding blocks 24.

[0025] Among them, the supporting plate 3 is arranged below the support ring 1, the mounting bracket 26 is fixedly connected with the bottom end of the supporting plate 3, the fixed plate 25 is arranged at the center of the lower turning plate 21, and the lower motor 251 for driving the fixed plate 25 is fixedly connected with the bottom end of the mounting bracket 26.

[0026] It should be noted that the mounting bracket 26 described in this embodiment is staggered with the lower turning plate 21, the lower motor 251 corresponds to the fixed plate 25, and the lower motor 251 corresponds to the centers of the upper turning plate 2 and the lower turning plate 21.

[0027] The rotating sleeve 28 is provided with a positioning block 281 at the top, and a measuring rod 29 is connected between the rotating sleeves 28, and the connecting clamping holes 291 are formed in the measuring rod 29 and matched with the rotating sleeves 28.

[0028] It should be noted that the positioning block 281 protrudes from the top end of the rotating sleeve 28, the connecting clamping hole 291 is in sliding connection with the positioning block 281, and the measuring rod 29 is provided with a scale line on the surface.

[0029] Specifically, in use, the support ring 1 is used to provide a mounting surface for the clamping assembly 11, the clamping assemblies 11 are equidistantly distributed on the surface of the support ring 1, so that the clamping assembly 11 can clamp the workpiece, at this time, the upper rotating plate 2 rotatably connected to the inner wall of the support ring 1 corresponds to the lower rotating plate 21 below, after the upper rotating plate 2 and the lower rotating plate 21 correspond, the slide 22 formed in the upper rotating plate 2 and the lower rotating plate 21 can be used to mount the sliding block 24, the two symmetrical sliding blocks 24 are respectively slidably connected to the two corresponding slides 22, the two sliding blocks 24 on the lower rotating plate 21 are used to fixedly mount the positioning block 281, so that the rotating sleeve 28 rotatably connected to the top of the positioning block 281 can be supported on the two sliding blocks 24 above, and the position of the rotating sleeve 28 can be connected through the positioning block 281, so that the position of the rotating sleeve 28 can correspond to the sliding block 24 below, when the clamping assembly 11 clamps the cylindrical thin-walled part, when the inner hole is machined and polished, the upper rotating plate 2 and the lower rotating plate 21 can be rotated, so that the rotating sleeve 28 is adjusted to be dislocated from the polishing part when polishing in the hole of the thin-walled workpiece, so that the polishing work on each position in the hole is avoided, and after polishing is completed, the sliding block 24 can be displaced in the slide 22, so that the distance between the sliding blocks 24 is displaced to a position corresponding to the polishing size in the hole, after the position is adjusted, the position of the rotating sleeve 28 is fixed, so that the rotating sleeve 28 can be supported in the inner wall polished after the hole of the thin-walled workpiece, the upper rotating plate 2 and the lower rotating plate 21 can be rotated again, so that the rotating sleeve 28 is displaced in the hole, so that the rotating sleeve 28 rotates in the hole to reduce friction, when the distance between the rotating sleeves 28 is equal to the size required by polishing in the hole, or when the rotating sleeve 28 is difficult to rotate due to the clearance between the rotating sleeve 28 and the hole, it can be determined that there is too much or too little polishing in the hole, and the measuring rod 29 can be connected to the positioning block 281 through the connecting clamping hole 291 to determine the distance between the rotating sleeves 28, so that the rotating sleeves 28 can keep the distance corresponding to the size of the designed hole, thereby facilitating quality detection of the workpiece polished in the hole of the thin-walled workpiece, and ensuring the quality of the workpiece polished in the hole of the thin-walled workpiece.

[0030] In one embodiment of the utility model, as shown in Figures 1-4 The limit groove 23 is formed in the connecting position between the slide 22 and the sliding block 24, and the limit block 241 is fixedly connected to the connecting position between the sliding block 24 and the limit groove 23.

[0031] It should be noted that the limiting groove 23 and the limiting block 241 are engaged in this embodiment, and the limiting groove 23 and the limiting block 241 are in sliding connection.

[0032] Specifically, the sliding block 24 is connected and limited by the limiting groove 23 and the limiting block 241, so that the sliding block 24 can slide horizontally on the upper rotating plate 2 and the lower rotating plate 21, avoiding separation, ensuring vertical support of the positioning block 281 and the rotating sleeve 28, and ensuring that the two rotating sleeves 28 can be stably supported in the hole of the cylindrical thin-walled part.

[0033] In an embodiment of the present application, as shown in Figures 1-4 The lower rotating plate 21 is fixedly connected with two upper motors 27 corresponding to the slide 22, and the upper motor 27 is fixedly connected with an adjusting rod 271 at the driving end, and the two adjusting rods 271 are respectively threadedly connected with the two sliding blocks 24.

[0034] It should be noted that the driving end of the upper motor 27 penetrates the lower rotating plate 21 into the slide 22, and one end of the adjusting rod 271 is rotatably connected with the inner wall of the slide 22.

[0035] Specifically, when the driving end of the upper motor 27 can be driven to rotate, the adjusting rod 271 is driven to rotate, and after the adjusting rod 271 rotates, the position of the sliding block 24 slidably connected with the inner wall of the slide 22 can be adjusted, so that the distance between the two rotating sleeves 28 can be detected according to the size precision after polishing processing in the cylindrical thin-walled hole.

[0036] In an embodiment of the present application, as shown in Figures 1-4 The supporting plate 3 and the supporting ring 1 are connected through a plurality of supporting frames 34, and the mounting frame 26 is staggered with the lower rotating plate 21.

[0037] It should be noted that the supporting frames 34 are equidistantly distributed between the supporting ring 1 and the supporting plate 3, and the mounting frame 26 is supported at the bottom of the supporting plate 3 to provide a mounting surface for the lower motor 251.

[0038] Specifically, the supporting frame 34 enables the supporting plate 3 to be stably erected at a position flush with the supporting ring 1, enables the sliding plate 33 to be connected with the surface of the supporting ring 1, and enables the mounting frame 26 to be at the bottom position of the supporting plate 3 to mount the lower motor 251. The lower motor 251 can drive the fixed plate 25 to rotate with the fixed plate 25 and the lower rotating plate 21, thereby driving the rotating sleeve 28 to displace in the hole of the cylindrical thin-walled part and detecting it.

[0039] In an embodiment of the present application, as shown in Figures 1-4As shown, the mounting ring 31 is arranged above the supporting plate 3, the inner wall of the mounting ring 31 is fixedly connected with a plurality of fixed rods 32, the fixed rods 32 are slidably connected with sliding plates 33, the sliding plates 33 are staggered with the clamping assemblies 11, and the sliding plates 33 are slidably connected with the supporting ring 1.

[0040] It should be noted that the sliding plates 33 described in the embodiment are flush with the supporting ring 1, and the bottom end of the sliding plate 33 is slidably connected with the top end of the upper rotating plate 2.

[0041] Specifically, when clamping the cylindrical thin-walled part, the sliding plate 33 can be slidably limited on the supporting ring 1 according to the position of the bottom end of the part, and the top end of the sliding plate 33 supports the bottom end of the part, and the supporting position is staggered with the position of the rotating sleeve 28, so that the end of the rotating sleeve 28 does not extend into the lower part of the hole of the part, and the displacement of the rotating sleeve 28 is limited.

[0042] In summary, the thin-walled part inner hole machining clamp for the numerical control lathe can be used for clamping the cylindrical thin-walled part, the upper rotating plate 2 and the lower rotating plate 21 can be rotated, the rotating sleeve 28 is adjusted to the staggered position with the polishing part when polishing in the hole of the thin-walled workpiece, the interference of polishing work at each position in the hole is avoided, after polishing, the driving end of the upper motor 27 is driven to rotate, the adjusting rod 271 is driven to rotate, the position of the sliding block 24 slidably connected with the inner wall of the sliding groove 22 is adjusted after the self-rotation of the adjusting rod 271, the distance between the sliding blocks 24 is adjusted to the position corresponding to the polishing size in the hole, the position of the rotating sleeve 28 is fixed, so that the rotating sleeve 28 can be supported in the inner wall polished in the hole of the thin-walled workpiece, the rotating sleeve 28 is displaced in the hole through the self-rotation of the upper rotating plate 2 and the lower rotating plate 21, when the distance of the rotating sleeve 28 is equal to the size required for polishing in the hole, or when the rotating sleeve 28 is limited and difficult to rotate, it can be determined that there is more or less polishing when polishing in the hole, so as to facilitate quality detection of the workpiece polished in the thin-walled hole, and ensure the quality of the workpiece after polishing in the hole of the cylindrical thin-walled workpiece.

[0043] In the description of the present application, the terms "first" and "second" are used only for the purpose of description, and cannot 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" can explicitly or implicitly include at least one of the features. In the description of the present application, the meaning of "a plurality of" is at least two, such as two, three, etc., unless otherwise specifically limited.

[0044] In the description of the present specification, the description referring to the terms "one embodiment", "some embodiments", "an example", "a specific example", or "some examples" and the like means that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present application. In the present specification, the illustrative description of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any appropriate manner in any one or more embodiments or examples. Furthermore, the person skilled in the art can combine and combine the different embodiments or examples described in the present specification and the features of the different embodiments or examples, without contradiction.

[0045] Although the embodiments of the present application have been shown and described above, it is understood that the above-described embodiments are exemplary and are not to be construed as limiting the present application, and the person skilled in the art can make changes, modifications, replacements and deformations to the above-described embodiments within the scope of the present application.

Claims

1. A thin-walled part inner hole machining clamp for a numerical control lathe, comprising a support ring (1) and a plurality of clamping assemblies (11), characterized in that, The support ring (1) inner wall rotationally connected with the upper turning plate (2), the lower turning plate (21) is arranged below the upper turning plate (2), the upper turning plate (2) and the lower turning plate (21) are provided with corresponding slide (22), the slide (22) inner wall is slidably connected with the sliding block (24), the lower two sliding blocks (24) are installed with the positioning block (281), the positioning block (281) is rotatably connected with the rotating sleeve (28), the rotating sleeve (28) is arranged on the other two sliding blocks (24); Wherein, the support ring (1) below is equipped with the supporting plate (3), the supporting plate (3) bottom end fixedly connected with the mounting bracket (26), the lower turning plate (21) center is installed with the fixed plate (25), the mounting bracket (26) bottom end fixedly connected with the lower motor (251) for driving the fixed plate (25); The rotating sleeve (28) top is equipped with the positioning block (281), the rotating sleeve (28) is connected with the measuring rod (29), the measuring rod (29) is provided with the connecting clamping hole (291) matched with the rotating sleeve (28).

2. The thin-walled part bore machining fixture for a numerical control lathe according to claim 1, characterized in that, The slide (22) inner wall and the sliding block (24) connection place is provided with the limiting groove (23), the sliding block (24) and the limiting groove (23) connection place is fixedly connected with the limiting block (241).

3. The thin-walled part bore machining fixture for a numerical control lathe according to claim 1, characterized in that, The lower turning plate (21) outer wall is fixedly connected with two upper motors (27) corresponding with the slide (22), the upper motor (27) drive end is fixedly connected with the adjusting rod (271), two adjusting rods (271) are respectively connected with two sliding blocks (24) by screwing.

4. The thin-walled part bore machining fixture for a numerical control lathe according to claim 1, characterized in that, The supporting plate (3) and the support ring (1) are connected through a plurality of support frames (34), the mounting bracket (26) is staggered with the lower turning plate (21).

5. The thin-walled part bore machining fixture for a numerically controlled lathe according to claim 1, characterized in that, The supporting plate (3) above is equipped with the mounting ring (31), the mounting ring (31) inner wall is fixedly connected with a plurality of fixed rods (32), the fixed rod (32) is slidably connected with the sliding plate (33), the sliding plate (33) is staggered with the clamping assembly (11), the sliding plate (33) is slidably connected with the support ring (1).

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