Cylindrical special-shaped part machining and clamping tool

By designing a clamping fixture that combines a sliding base block and a screw, the problem of unstable fixing of cylindrical irregular parts was solved, achieving stable clamping and adapting to the needs of workpieces of different sizes, ensuring machining accuracy and stability.

CN224102371UActive Publication Date: 2026-04-10SICHUAN HANAO MASCH CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
SICHUAN HANAO MASCH CO LTD
Filing Date
2025-05-08
Publication Date
2026-04-10

AI Technical Summary

Technical Problem

Existing clamping fixtures cannot fully adapt to the surface of cylindrical irregular parts, resulting in insufficient fixation and affecting machining accuracy and stability.

Method used

A clamping fixture was designed, comprising a combination structure of a sliding base block, a screw, a pressure plate, a pressure block, and a nut. Stable clamping is achieved by rotating the nut to press down the pressure plate, and the clamping height and angle can be quickly adjusted by the sliding engagement between the screw and the base block to accommodate workpieces of different sizes.

Benefits of technology

It achieves stable clamping of cylindrical irregular parts, avoids displacement or vibration during processing, ensures processing accuracy and adapts to workpieces of different sizes, and improves processing stability and versatility.

✦ Generated by Eureka AI based on patent content.

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    Figure CN224102371U_ABST
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Abstract

The utility model discloses a barrel type special-shaped piece machining clamping tool which comprises a working table and a clamping part, the clamping part is arranged at the top of the working table and provided with a bottom block arranged at the top of the working table in a sliding mode, the top of the bottom block abuts against the bottom of a barrel type special-shaped piece, a screw is arranged at the top of the bottom block in a sliding mode, and the clamping part is arranged on the working table. A pressing plate is arranged at the top of the screw rod in a sliding mode, the pressing plate abuts against the top of the barrel type special-shaped piece, a pressing block is arranged at the top of the pressing plate, a nut is arranged at the top of the pressing block, the nut is connected with the screw rod in a threaded and nested mode, and the nut rotates to move downwards along the screw rod to drive the pressing plate to move to press the top of the barrel type special-shaped piece. According to the clamping device, the clamping part is arranged, the pressing plate can be evenly pressed down by rotating the nut, stable clamping of the barrel-type special-shaped part is achieved, displacement or vibration of the workpiece in the machining process is avoided, and the machining precision is ensured; and meanwhile, the clamping height can be rapidly adjusted through sliding fit of the screw and the bottom block, and the device adapts to workpieces of different sizes.
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Description

TECHNICAL FIELD

[0001] The utility model relates to milling machine clamping frock technical field, concretely is a kind of cylinder special-shaped part machining clamping frock. BACKGROUND

[0002] Milling machine is a kind of machine tool for metal, wood and other material processing, mainly through the rotating multi-blade cutter (milling cutter) to workpiece is cut, to complete plane, groove, gear, thread and other complex shape processing. Its core feature is that tool rotates while workpiece moves, and precise machining is realized by controlling the relative movement of workpiece and tool.

[0003] The existing one cylinder special-shaped part, as shown in Figure 1 When processing cylinder special-shaped part, it needs to be clamped and fixed on the workbench by clamping frock, but the existing clamping frock cannot completely adapt to the surface of cylinder special-shaped part, so that the fixation of cylinder special-shaped part is not stable enough, therefore we propose a kind of cylinder special-shaped part machining clamping frock. INVENTION CONTENTS

[0004] The utility model aims at providing a kind of cylinder special-shaped part machining clamping frock to solve the above background art in the processing of cylinder special-shaped part, it needs to be clamped and fixed on the workbench by clamping frock, but the existing clamping frock cannot completely adapt to the surface of cylinder special-shaped part, so that the fixation of cylinder special-shaped part is not stable enough, therefore we propose a kind of cylinder special-shaped part machining clamping frock.

[0005] To achieve the above object, the utility model provides the following technical scheme: a kind of cylinder special-shaped part machining clamping frock, including workbench and clamping part:

[0006] The clamping part is arranged on the top of the workbench, the clamping part has a bottom block slidingly arranged on the top of the workbench, the top of the bottom block abuts against the bottom of the cylinder special-shaped part, the top of the bottom block is slidingly provided with a screw rod, the top of the screw rod is slidingly provided with a pressing plate, the pressing plate abuts against the top of the cylinder special-shaped part, the top of the pressing plate is provided with a pressing block, the top of the pressing block is provided with a nut, the nut is threadedly nested with the screw rod, and the nut is rotated to move downward along the screw rod to drive the pressing plate to displace and press the top of the cylinder special-shaped part.

[0007] By adopting the above technical scheme, the pressing plate can be uniformly pressed down by rotating the nut, the stable clamping of the cylinder special-shaped part is realized, the workpiece displacement or vibration during processing is avoided, and the machining precision is ensured. At the same time, the sliding cooperation of the screw rod and the bottom block allows quick adjustment of the clamping height to adapt to workpieces of different sizes.

[0008] Preferably, the clamping part further has a sleeve slidingly arranged on the top of the workbench, a lifting rod is threadedly nested on the top of the sleeve, and the top of the lifting rod is in abutment with the bottom of the end of the pressing plate away from the barrel-like special-shaped part.

[0009] By adopting the technical scheme, the horizontal angle of the pressing plate can be finely adjusted by rotating the lifting rod, the pressing plate can be completely attached to the top of the workpiece, the workpiece is prevented from being deformed or clamped loosely due to uneven stress, and the sliding design of the sleeve facilitates flexible adjustment of the support point according to the position of the workpiece.

[0010] Preferably, the workbench further has a plurality of installation grooves arranged transversely on the top of the workbench, and the screw rod, the sleeve and the bottom block are fixed in the installation grooves on the top of the workbench by T-shaped bolts and matching nuts.

[0011] By adopting the technical scheme, the modular layout of the clamping assembly can be realized by using the installation grooves, the quick locking function of the T-shaped bolts facilitates flexible adjustment of the clamping position according to the shape of the workpiece and the machining requirement, and the universality and clamping efficiency of the tooling are improved.

[0012] Preferably, the clamping part further has a sliding groove arranged in the pressing plate, and the screw rod passes through the sliding groove and is slidingly connected with the pressing plate.

[0013] By adopting the technical scheme, the pressing plate can move transversely along the screw rod through the sliding groove, and the pressing plate can be adapted to barrel-like special-shaped parts of different diameters.

[0014] Preferably, the clamping part further has a plurality of clamping teeth a arranged on the top of the pressing plate, the pressing block is in clamping connection with the clamping teeth a, and the pressing block vertically passes through the screw rod.

[0015] By adopting the technical scheme, the meshing structure of the clamping teeth a and the pressing block can prevent the pressing plate from rotating or deviating due to vibration during machining, and the clamping stability is enhanced.

[0016] Preferably, the clamping part further has two rotating blocks rotatingly arranged on the bottom of the pressing plate, and the rotating blocks are in abutment with the top arc surface of the barrel-like special-shaped part.

[0017] By adopting the technical scheme, the rotating blocks can freely rotate with the surface curvature of the workpiece, and the surface of the workpiece is prevented from being scratched.

[0018] Preferably, the clamping part further has clamping teeth b arranged on the bottom of the pressing plate, and the screw rod is in abutment with the top of the barrel-like special-shaped part.

[0019] By adopting the technical scheme, the frictional force of the contact surface between the pressing plate and the workpiece can be improved.

[0020] Preferably, the clamping part is provided with multiple groups for clamping the arc surface of the cylindrical special-shaped part and the protruding end part of the cylindrical special-shaped part, and the base block is provided with multiple top surfaces, and the top surfaces of the multiple base blocks are provided with arc surfaces and planes of different degrees to adapt to cylindrical special-shaped parts of different sizes.

[0021] By adopting the technical scheme, the modular design of the multiple base blocks can be combined to match workpieces of different diameters and shapes, the arc surface base block is used for a cylinder, and the plane base block is used for a special-shaped boss, thereby significantly expanding the application range of the tooling.

[0022] Compared with the prior art, the clamping part can be uniformly pressed down by rotating the nut, the stable clamping of the cylindrical special-shaped part is realized, the workpiece is prevented from being displaced or vibrated during the machining process, and the machining precision is ensured; meanwhile, the sliding cooperation of the screw rod and the base block allows the clamping height to be quickly adjusted to adapt to workpieces of different sizes. BRIEF DESCRIPTION OF DRAWINGS

[0023] Figure 1 It is a schematic diagram of a cylindrical special-shaped workpiece structure of the present application;

[0024] Figure 2 It is a schematic diagram of the overall structure of the present application;

[0025] Figure 3 It is a schematic diagram of the overall structure of the present application;

[0026] Figure 4 It is a schematic diagram of the clamping part of the present application;

[0027] Figure 5 It is a schematic diagram of the clamping part of the present application;

[0028] In the figure: 1, workbench; 101, mounting groove; 2, clamping part; 201, pressing plate; 202, sliding groove; 203, tooth a; 204, rotating block; 205, tooth b; 206, screw rod; 207, pressing block; 208, nut; 209, sleeve; 210, lifting rod; 211, base block. DETAILED DESCRIPTION

[0029] The technical scheme in the embodiments of the present application will be described clearly and completely in combination with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0030] Embodiment one

[0031] Please refer to Figure 2 ,Figure 3 and Figure 4 The embodiment provides a technical scheme: a cylindrical special-shaped part machining clamping tool, which comprises a workbench 1 and a clamping part 2:

[0032] The clamping part 2 is arranged on the top of the workbench 1, the clamping part 2 is provided with a bottom block 211 slidingly arranged on the top of the workbench 1, the top of the bottom block 211 abuts against the bottom of the cylindrical special-shaped part, the top of the bottom block 211 is slidingly provided with a screw rod 206, the top of the screw rod 206 is slidingly provided with a pressing plate 201, the pressing plate 201 abuts against the top of the cylindrical special-shaped part, the top of the pressing plate 201 is provided with a pressing block 207, the top of the pressing block 207 is provided with a screw nut 208, the screw nut 208 is threadedly nested with the screw rod 206, the screw nut 208 is rotated to drive the pressing plate 201 to displace downward along the screw rod 206 and press the top of the cylindrical special-shaped part, the pressing plate 201 can be uniformly pressed downward by rotating the screw nut 208, the stable clamping of the cylindrical special-shaped part is realized, the workpiece is prevented from being displaced or vibrated in the machining process, and the machining precision is ensured; meanwhile, the sliding cooperation of the screw rod 206 and the bottom block 211 allows the clamping height to be quickly adjusted, and the workpieces of different sizes are adapted.

[0033] Embodiment two

[0034] Please refer to Figure 3 , Figure 4 and Figure 5 The embodiment provides a technical scheme: a cylindrical special-shaped part machining clamping tool, which comprises a clamping part 2, a pressing plate 201 and a sleeve 209:

[0035] The sleeve 209 is slidingly arranged on the top of the workbench 1, the top of the sleeve 209 is threadedly nested with a lifting rod 210, the top of the lifting rod 210 abuts against the bottom of one end of the pressing plate 201 away from the cylindrical special-shaped part, the horizontal angle of the pressing plate 201 can be finely adjusted by rotating the lifting rod 210, the complete adhesion of the pressing plate 201 to the top of the workpiece is ensured, the workpiece is prevented from being deformed or clamped loose due to uneven stress, and the sliding design of the sleeve 209 facilitates the flexible adjustment of the support point according to the position of the workpiece.

[0036] A plurality of installation grooves 101 are horizontally formed on the top of the workbench 1, the screw rod 206, the sleeve 209 and the bottom block 211 are fixed in the installation grooves 101 on the top of the workbench 1 through T-shaped bolts and matched nuts, the modular layout of the clamping assembly can be realized by utilizing the installation grooves 101, the quick locking function of the T-shaped bolts facilitates the flexible adjustment of the clamping position according to the shape of the workpiece and the machining requirement, and the tool universality and the clamping efficiency are improved.

[0037] A sliding groove 202 is formed in the pressing plate 201, the screw rod 206 penetrates through the sliding groove 202 and is slidingly connected with the pressing plate 201, the pressing plate 201 can move laterally along the screw rod 206 through the sliding groove 202, and different diameters of the cylindrical special-shaped part can be adapted.

[0038] A plurality of clamping teeth a 203 are arranged on the top of the pressing plate 201, and the pressing block 207 is connected with the clamping teeth a 203 in a clamping manner. The pressing block 207 vertically penetrates the screw rod 206, and the meshing structure of the clamping teeth a 203 and the pressing block 207 can prevent the pressing plate 201 from rotating or deviating due to vibration during the machining process, thereby enhancing the clamping stability.

[0039] Two rotating blocks 204 are arranged on the bottom of the pressing plate 201 in a rotating manner. The rotating blocks 204 abut against the top arc surface of the cylindrical special-shaped part, so that the rotating blocks 204 can freely rotate along the curvature of the workpiece surface, thereby avoiding scratching the workpiece surface.

[0040] The clamping teeth b 205 are arranged on the bottom of the pressing plate 201, and the screw rod 206 abuts against the top of the cylindrical special-shaped part, thereby improving the friction force of the contact surface between the pressing plate 201 and the workpiece.

[0041] The clamping part 2 is provided with a plurality of groups, which are used to clamp the arc surface of the cylindrical special-shaped part and the protruding end portion of the cylindrical special-shaped part. The bottom block 211 is provided with a plurality of top surfaces, and the top surfaces of the plurality of bottom blocks 211 are provided with arc surfaces and flat surfaces of different degrees to adapt to cylindrical special-shaped parts of different sizes. The modular design of the plurality of bottom blocks 211 can be used in combination to match workpieces of different diameters and shapes. The arc surface bottom block 211 is used for a cylinder, and the flat surface bottom block 211 is used for a special-shaped boss, thereby significantly expanding the application range of the tool.

[0042] Working principle: first, according to the size and shape of the cylindrical special-shaped part to be machined, the appropriate bottom block 211 is selected, which is slidably installed into the mounting groove 101 of the workbench 1 and locked and fixed by the T-shaped bolt. The workpiece is stably placed on the supporting surface of the bottom block 211, and the bottom part is completely attached, then the position of the sleeve 209 is adjusted, the horizontal angle of the pressing plate 201 is finely adjusted by rotating the lifting rod 210, the pressing plate 201 is completely attached to the top of the workpiece, and the deformation or loosening of the workpiece caused by uneven stress is avoided. The sliding design of the sleeve 209 facilitates flexible adjustment of the support according to the position of the workpiece. The pressing plate 201 is uniformly pressed by rotating the nut 208, so as to realize stable clamping of the cylindrical special-shaped part, avoid displacement or vibration of the workpiece during the machining process, and ensure the machining precision. At the same time, the sliding cooperation of the screw rod 206 and the bottom block 211 allows the clamping height to be quickly adjusted to adapt to workpieces of different sizes. The rotating block 204 can freely rotate along the curvature of the workpiece surface during the clamping process, thereby avoiding scratching the workpiece surface.

[0043] In the description of the utility model, it is necessary to explain, unless another explicit provision and limitation, the term "installation" "is provided with" "connection" and so on, should do broad sense understanding, for example "connection", can be fixed connection, also can be detachable connection, or integral connection;Can be mechanical connection, also can be electrical connection;Can be directly connected, also can be indirectly connected through the intermediate medium, can be two elements inside the communication, for the ordinary skill of the person of the art, can understand the specific meaning of the above-mentioned term in the utility model according to specific circumstances.

[0044] Although the embodiments of the utility model have been shown and described, it can be understood by those of ordinary skill in the art that various changes, modifications, replacements and variations can be made to these embodiments without departing from the principles and spirits of the utility model, and the scope of the utility model is defined by the appended claims and their equivalents.

Claims

1. A clamping fixture for machining cylindrical irregular-shaped parts, characterized in that, include: Workbench; The clamping part is located on the top of the worktable. The clamping part has a bottom block that is slidably disposed on the top of the worktable. The top of the bottom block abuts against the bottom of the cylindrical part. A screw is slidably disposed on the top of the bottom block. A pressure plate is slidably disposed on the top of the screw. The pressure plate abuts against the top of the cylindrical part. A pressure block is disposed on the top of the pressure plate. A nut is disposed on the top of the pressure block. The nut is threadedly nested with the screw. The nut rotates and moves down along the screw, causing the pressure plate to move and press against the top of the cylindrical part.

2. The clamping fixture for machining cylindrical irregular parts according to claim 1, characterized in that: The clamping part also has a sleeve that is slidably disposed on the top of the worktable. A lifting rod is threadedly nested on the top of the sleeve, and the top of the lifting rod abuts against the bottom of the end of the pressure plate away from the cylindrical part.

3. The clamping fixture for machining cylindrical irregular parts according to claim 2, characterized in that: The workbench also has several horizontally arranged mounting slots on the top of the workbench, and the screw, sleeve and base block are fixed in the mounting slots on the top of the workbench by T-bolts and matching nuts.

4. The clamping fixture for machining cylindrical irregular parts according to claim 1, characterized in that: The clamping part also has a groove formed inside the pressure plate, through which the screw passes and is slidably connected to the pressure plate.

5. The clamping fixture for machining cylindrical irregular parts according to claim 1, characterized in that: The clamping part also has several locking teeth a set on the top of the pressure plate, and the pressure block is engaged with the locking teeth a, and the pressure block passes vertically through the screw.

6. The clamping fixture for machining cylindrical irregular parts according to claim 1, characterized in that: The clamping part also has two rotating blocks rotatably disposed at the bottom of the pressure plate, which abut against the top arc surface of the cylindrical irregular part.

7. The clamping fixture for machining cylindrical irregular parts according to claim 1, characterized in that: The clamping part also has a locking tooth b opened at the bottom of the pressure plate, and the screw abuts against the top of the cylindrical part.

8. The clamping fixture for machining cylindrical irregular parts according to claim 1, characterized in that: The clamping part is provided in multiple sets for clamping the arc surface of the cylindrical irregular part and the protruding end part of the cylindrical irregular part. The bottom block is provided in several sets, and the top surface of the several bottom blocks is provided with arc surface and flat surface of different degrees to accommodate cylindrical irregular parts of different sizes.