A quick fixture for machining disc parts by means of a central axis tension

Abstract

The utility model discloses a kind of quick clamps for machining disc parts by middle shaft tension, it is related to machining tooling technical field including tooling shell, the chuck flange that tooling shell one end is equipped with can be connected with machine tool, the other end of the chuck flange is equipped with the receiving ring that can be sleeved with disc workpiece, the end surface of the receiving ring is equipped with the abutting disc for extruding disc workpiece;Tooling shell inner position axis position is equipped with pull rod direct connection sleeve, one end of the pull rod direct connection sleeve is inserted into receiving ring.The utility model is driven pull rod direct connection sleeve by machine tool middle shaft, integrates lathe tooling of quick clamping and high-precision positioning, solves the problem of "low efficiency, poor accuracy, difficult to change type" of existing clamp, realizes automatic operation, high-precision machining, multi-specification adaptation, and the setting of receiving ring, extension ring and gasket ring, cooperate with the replacement of the pressable disc insertion tube, so that the clamp can be adapted to the clamping of disc workpieces of various sizes, to improve the range of application.

Description

Technical Field

[0001] This utility model relates to the field of machining tooling technology, specifically a quick clamping fixture for machining disc-shaped parts using a central shaft. Background Technology

[0002] Disc-shaped parts are a type of part with distinct characteristics and wide applications. Flanges and pipe pile end plates are two typical ring-shaped disc-shaped parts. When performing robotic welding, handling and inspection operations, mechanical pressing devices are usually used to apply radial or surface pressure to achieve the purpose of clamping.

[0003] Currently, the fixtures used in lathe machining of disc-shaped parts have the following shortcomings:

[0004] 1. Low clamping efficiency: It relies heavily on manual operation (such as tightening with a wrench and adjusting the pads), which takes a long time and is difficult to adapt to automated production lines;

[0005] 2. Poor positioning accuracy: Uneven force and deviation of positioning reference during manual clamping lead to unstable machining accuracy;

[0006] 3. Insufficient versatility: When changing the type of disc-shaped parts to process different specifications, it is necessary to replace the entire set of fixtures or make a lot of adjustments, resulting in poor flexibility.

[0007] Therefore, there is an urgent need for a tooling for machining disc-shaped parts that features automatic tensioning and relaxation, high-precision positioning, and multi-specification adaptability, in order to improve production efficiency and machining quality. To this end, a quick clamping fixture for machining disc-shaped parts using a central shaft is proposed. Utility Model Content

[0008] Therefore, the purpose of this utility model is to provide a quick clamping fixture for machining disc-shaped parts by using a central shaft to solve the technical problems mentioned in the background.

[0009] To achieve the above objectives, this utility model provides the following technical solution: a quick clamp for processing disc-shaped parts by using a central shaft, comprising a tooling housing, one end of which is provided with a chuck flange that can be connected to a machine tool, and the other end of which is provided with a receiving ring that can receive disc-shaped workpieces, and the end face of the receiving ring is provided with an abutment plate for pressing disc-shaped workpieces.

[0010] A pull rod connecting sleeve is provided at the axial position inside the tooling housing. One end of the pull rod connecting sleeve is inserted into the receiving ring. A pressure plate for pressing the receiving plate is provided on one side of the receiving plate. The end face of the pressure plate is provided with a plug-in cylinder that extends into the receiving ring and can be engaged with the pull rod connecting sleeve.

[0011] As a preferred technical solution, the plug-in cylinder is provided with a pre-tightening rod that extends through to the outside of the plug-in cylinder. The plug-in cylinder is arranged along the radial direction of the plug-in cylinder. The end face of the pull rod direct connecting sleeve is provided with two sets of L-shaped slots that can engage with the pre-tightening rod.

[0012] As a preferred technical solution, the outer wall of the receiving ring is fitted with an extension ring extending to the end, and the outer wall of the receiving ring is provided with a groove that matches the extension ring.

[0013] As a preferred technical solution, a first stepped ring is fixedly provided inside the plug-in cylinder, and a second stepped ring adapted to the first stepped ring is fixed on the end face of the pressure plate.

[0014] As a preferred technical solution, the end face of the pressure plate is detachably connected to the end face of the plug-in cylinder using bolts.

[0015] As a preferred technical solution, the outer wall of the receiving ring is fitted with a pad ring that fits the inner wall of the disc-shaped workpiece, the outer wall of the extension ring is provided with a constraint groove along its circumferential direction, and the inner wall of the pad ring is provided with a protrusion that matches the groove.

[0016] As a preferred technical solution, the tooling shell and the receiving ring are integrally cast.

[0017] In summary, the present invention has the following main advantages:

[0018] This invention solves the problems of "low efficiency, poor accuracy, and difficult changeover" of existing fixtures by using a machine tool spindle drive tie rod direct connection sleeve and a lathe tooling fixture that integrates quick clamping and high-precision positioning. It achieves automated operation, high-precision machining, and multi-specification adaptation. The setting of the receiving ring, extension ring, and pad ring, together with the replacement of the pressable disc plug-in cylinder, allows the fixture to be adapted to clamping disc workpieces of various sizes, thereby expanding its applicability. Attached Figure Description

[0019] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0020] Figure 2 This is a cross-sectional view of the present invention;

[0021] Figure 3 This is a three-dimensional structural diagram of the tie rod direct connection sleeve of this utility model;

[0022] Figure 4 This is a schematic diagram of the structure of the tooling housing of this utility model;

[0023] Figure 5 This is a diagram showing the internal structure of the plug-in tube of this utility model.

[0024] In the diagram: 100, tooling housing; 110, chuck flange; 120, abutment plate; 130, pressure plate; 140, tie rod straight sleeve; 141, L-shaped groove; 150, preload rod; 160, plug-in sleeve; 161, first stepped ring; 162, second stepped ring; 170, gasket;

[0025] 101. Receiving ring; 102. Groove; 103. Extension ring; 104. Constraint groove. Detailed Implementation

[0026] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention.

[0027] The embodiments of this utility model will be described below based on its overall structure.

[0028] Example 1

[0029] A quick clamping fixture that utilizes a central spindle to tighten and process disc-shaped parts, such as... Figures 1 to 5 As shown, it includes a tooling housing 100, one end of which is provided with a chuck flange 110 that can be connected to a machine tool, and the other end of the chuck flange 110 is provided with a receiving ring 101 that can be fitted onto a disc-shaped workpiece. The end face of the receiving ring 101 is provided with an abutment plate 120 for pressing the disc-shaped workpiece.

[0030] A pull rod connecting sleeve 140 is provided at the axial position inside the tooling housing 100. One end of the pull rod connecting sleeve 140 is inserted into the receiving ring 101. A pressure plate 130 for pressing the receiving plate 120 is provided on one side of the receiving plate 120. The end face of the pressure plate 130 is provided with a plug-in cylinder 160 that extends into the receiving ring 101 and can be engaged with the pull rod connecting sleeve 140. A gasket ring 170 that fits against the inner wall of the disc-shaped workpiece is sleeved on the outer wall of the receiving ring 101.

[0031] The plug-in sleeve 160 is provided with a pre-tightening rod 150 extending through to the outside of the plug-in sleeve 160. The plug-in sleeve 160 is arranged along the radial direction of the plug-in sleeve 160. The end face of the pull rod straight connecting sleeve 140 is provided with two sets of L-shaped slots 141 that can engage with the pre-tightening rod 150.

[0032] The tie rod direct connection sleeve 140 can connect to the central shaft of an automatic machine tool to transmit tension or relaxation power;

[0033] The pre-tightening rod 150 of the plug-in cylinder 160 is tightly engaged with the pull rod straight sleeve 140 through the L-shaped slot 141, ensuring that the pressure plate 130 applies stable pressure to the abutment plate 120, thereby achieving precise extrusion of the disc-shaped workpiece.

[0034] The chuck flange 110 is used to mount the fixture as a whole onto the lathe chuck, ensuring installation stability;

[0035] When clamping disc-shaped workpieces, the disc-shaped workpiece is taken out and sleeved on the outside of the receiving ring 101. Then, the abutment plate 120 is sleeved on the outside of the receiving ring 101 in the same way. Finally, the insertion cylinder 160 on the end face of the pressure plate 130 is inserted into the receiving ring 101 and rotated. At this time, the pre-tightening rod 150 enters the L-shaped groove 141. The pre-tightening rod 150 slides along the vertical section of the L-shaped groove 141 into the bottom of the horizontal section to achieve circumferential locking.

[0036] During this process, the axial displacement of the tie rod direct sleeve 140 drives the plug-in sleeve 160 and pressure plate 130 to move into the receiving ring 101 through the pre-tightening rod 150, so that the pressure plate 130 continuously squeezes the abutment plate 120. After the abutment plate 120 is subjected to force, it stably presses the disc-shaped workpiece outside the receiving ring 101, waiting for the machine tool to process it.

[0037] Example 2

[0038] The differences between this embodiment and Embodiment 1 are as shown in the appendix to the instruction manual. Figure 3 and Figure 4 As shown, the outer wall of the receiving ring 101 is fitted with an extension ring 103 extending to the end, and the outer wall of the receiving ring 101 is provided with a groove 102 that is adapted to the extension ring 103.

[0039] A first stepped ring 161 is fixedly provided inside the plug-in sleeve 160, and a second stepped ring 162 that is adapted to the first stepped ring 161 is fixed on the end face of the pressure plate 130.

[0040] The end face of the pressure plate 130 is detachably connected to the end face of the plug-in cylinder 160 by bolts;

[0041] The outer wall of the extension ring 103 is provided with a constraint groove 104 along its circumference, and the inner wall of the pad ring 170 is provided with a protrusion that matches the groove.

[0042] The extension ring 103, fitted onto the outer wall of the receiving ring 101, can be axially elongated to accommodate disc-shaped workpieces of varying thicknesses. The washer ring 170 can be replaced according to the internal diameter of the disc-shaped workpiece. Because the inner wall of the washer ring 170 protrudes and embeds into the constraint groove 104 of the extension ring 103, it tightly fits the inner wall of the disc-shaped workpiece and provides radial support, ensuring no radial movement of the workpiece during processing. When it is necessary to release the workpiece, the central shaft pushes the pull rod connecting sleeve 140 forward, no longer applying axial tension to the pre-tightening rod 150. The pressure plate 130 can be manually rotated, causing the pre-tightening rod 150 to slide from the horizontal section of the L-shaped slot 141 to the vertical section. The pressure plate 130 can then be rotated in the opposite direction to allow the insertion sleeve 160 to exit the receiving ring 101, thus removing the disc-shaped workpiece. This structure achieves rapid and precise clamping and disassembly of disc-shaped workpieces through a single tightening or loosening action of the central shaft, significantly improving clamping efficiency and positioning reliability.

[0043] Please refer to this carefully. Figure 4 The tooling shell 100 and the receiving ring 101 are integrally cast.

[0044] The receiving ring 101 is able to withstand the weight of the disc-shaped workpiece, ensuring stable processing.

[0045] Although embodiments of the present invention have been shown and described, these specific embodiments are merely explanations of the present invention and are not intended to limit the invention. The specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. After reading this specification, those skilled in the art may make modifications, substitutions, and variations to the embodiments as needed without departing from the principles and spirit of the present invention, provided that such modifications, substitutions, and variations are within the scope of the claims of the present invention and are protected by patent law.

Claims

1. A quick clamping fixture for machining disc-shaped parts using a central shaft, comprising a tooling housing (100), characterized in that: The tooling housing (100) has a chuck flange (110) at one end that can be connected to a machine tool, and a receiving ring (101) at the other end that can be fitted with a disc-shaped workpiece. The end face of the receiving ring (101) is provided with an abutment plate (120) for pressing the disc-shaped workpiece. A pull rod connecting sleeve (140) is provided at the axial position inside the tooling housing (100). One end of the pull rod connecting sleeve (140) is inserted into the receiving ring (101). A pressure plate (130) for pressing the abutment plate (120) is provided on one side. The end face of the pressure plate (130) is provided with a plug-in cylinder (160) that extends into the receiving ring (101) and can be engaged with the pull rod connecting sleeve (140).

2. The quick clamping fixture for machining disc-shaped parts using a central shaft according to claim 1, characterized in that: The plug tube (160) is provided with a pre-tightening rod (150) that extends through to the outside of the plug tube (160). The plug tube (160) is arranged along the radial direction of the plug tube (160). The end face of the pull rod straight connecting sleeve (140) is provided with two sets of L-shaped slots (141) that can engage with the pre-tightening rod (150).

3. The quick clamping fixture for machining disc-shaped parts using a central shaft according to claim 1, characterized in that: The outer wall of the receiving ring (101) is fitted with an extension ring (103) extending to the end, and the outer wall of the receiving ring (101) is provided with a groove (102) that matches the extension ring (103).

4. A quick clamping fixture for machining disc-shaped parts using a central shaft according to claim 1, characterized in that: The insertion tube (160) is fixedly provided with a first stepped ring (161), and the end face of the pressure plate (130) is fixed with a second stepped ring (162) that is adapted to the first stepped ring (161).

5. A quick clamping fixture for machining disc-shaped parts using a central shaft according to claim 1, characterized in that: The end face of the pressure plate (130) is detachably connected to the end face of the plug-in cylinder (160) by bolts.

6. A quick clamping fixture for machining disc-shaped parts using a central shaft according to claim 3, characterized in that: The outer wall of the receiving ring (101) is fitted with a pad ring (170) that fits the inner wall of the disc-shaped workpiece. The outer wall of the extension ring (103) is provided with a constraint groove (104) along its circumferential direction. The inner wall of the pad ring (170) is provided with a protrusion that matches the groove.

7. A quick clamping fixture for machining disc-shaped parts using a central shaft according to claim 1, characterized in that: The tooling housing (100) and the receiving ring (101) are integrally cast.

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