Constant force clamp for thin-wall cavity part
By using a motor-driven lifting seat and synchronous stretching mechanism in a constant-force fixture for thin-walled cavity parts, the problems of time-consuming, labor-intensive, and uneven clamping in traditional clamping methods are solved, achieving rapid and accurate positioning and uniform clamping, thus ensuring processing quality.
Patent Information
- Application Number
- CN202423100728.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-16
- Publication Date
- 2025-12-05
- Estimated Expiration
- 2034-12-16
AI Technical Summary
Traditional clamping methods for thin-walled cavity parts are time-consuming, labor-intensive, and difficult to achieve precise positioning, resulting in poor machining accuracy and finished product quality. Furthermore, uneven clamping force leads to severe deformation problems.
A constant-force fixture for thin-walled cavity parts is adopted. Through a motor-driven lifting seat and synchronous tensioning mechanism, the part is accurately vertically positioned and uniformly clamped. The internal and external clamping structures are used to disperse stress and avoid deformation.
It enables rapid automatic clamping of thin-walled cavity parts, improves positioning accuracy and clamping force uniformity, and protects the machining integrity of the parts.
Smart Images
Figure CN223630213U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to thin -walled cavity class part fixture technical field, specifically, relate to a thin -walled cavity class part fixed -force fixture. BACKGROUND
[0002] Thin -walled cavity class part, with its unique structure design and extensive application field, occupies the pivotal position in the machinery processing industry. However, the processing of this kind of part faces many challenges, especially the complexity of clamping process, becomes the key factor restricting its processing quality and efficiency. The clamping method of traditional thin -walled cavity class part mostly relies on manual operation, not only time -consuming and labor -intensive, but also difficult to realize accurate positioning. In the processing, due to the poor rigidity of thin -walled part, once clamping is improper, the part is prone to deformation, and then influences its machining precision and finished product quality. In addition, the traditional clamping method also generally exists the problem of uneven clamping force, especially in the edge and internal area of the part, the deformation phenomenon caused by stress concentration is particularly prominent.
[0003] In order to overcome these difficulties, the industry begins to explore the research and development of automatic clamping equipment, however, the existing automatic clamping equipment, although improves the clamping efficiency to some extent, still has many deficiencies, for example, some equipment cannot realize accurate positioning of the part in the clamping process, which limits the machining precision, and some equipment may not be able to achieve uniform distribution of clamping force, especially when processing thin -walled cavity class parts, the deformation problem caused by the difference of clamping force at each point is still serious, therefore, in view of the above technical problems, a thin -walled cavity class part fixed -force fixture is provided. UTILITY MODEL CONTENTS
[0004] The utility model aims at providing a thin -walled cavity class part fixed -force fixture, which can not only realize rapid and automatic clamping of thin -walled cavity class parts, but also avoid deformation caused by different clamping forces at each point during the processing of thin -walled cavity class parts, and protect the processing integrity of thin -walled cavity class parts.
[0005] The utility model realizes the following technical scheme:
[0006] A kind of thin -walled cavity class part fixed -force fixture, including bottom plate, the upper side of the bottom plate is fixedly connected with stand, the outer side of the stand is equipped with lifting groove, the inner side of the stand is installed with lifting mechanism, the external fixed connection of the lifting mechanism is equipped with mounting plate, the lower side of the mounting plate is equipped with sliding slot, the inner side of the sliding slot is slidably connected with sliding block, the external fixed connection of the sliding block is equipped with arc clamping plate, the inner side of the sliding slot is fixedly connected with spring, and the end of spring is fixedly connected to one side of sliding block, synchronous stretching mechanism is installed at the bottom of mounting plate.
[0007] The upper side of the bottom plate is fixedly connected with a first positioning ring.
[0008] The lifting mechanism comprises a screw rod and a lifting seat, the screw rod is rotationally connected to the inner side of the lifting groove, and the lifting seat is threadedly connected to the outer side of the screw rod.
[0009] Preferably, the upper side of the column is fixedly connected with a first motor, and the screw rod is fixedly connected with the first motor.
[0010] Preferably, the outer side of the lifting seat is fixedly connected with a connecting block, and the connecting block is fixedly connected to one side of the mounting plate.
[0011] Preferably, the bottom of the mounting plate is fixedly connected with a second positioning ring, and the inner diameter of the second positioning ring is smaller than the inner diameter of the first positioning ring.
[0012] Preferably, the number of the sliding grooves is three and the sliding grooves are arranged in a ring shape.
[0013] Preferably, the synchronous stretching mechanism comprises a mounting groove, a rotating shaft and a connecting rope, the mounting groove is arranged at the center of the bottom of the mounting plate, the rotating shaft is rotationally connected to the inner side of the mounting groove, the connecting rope is fixedly connected to the outer side of the rotating shaft, the end of the connecting rope is fixedly connected to the outer side of the sliding block through the mounting plate, the upper side of the mounting plate is fixedly connected with a second motor, and the rotating shaft is fixedly connected with the second motor.
[0014] The technical scheme of the utility model has at least the following beneficial effects:
[0015] The utility model discloses a kind of thin-wall cavity class parts fixed force clamps, by the drive of first motor, the accurate downward of lifting seat is controlled, the upper end surface of part can be tightly extruded, the accurate positioning in vertical direction is completed, in this process, first positioning ring cooperates with the mounting plate on lifting seat, and firm foundation is provided for the preliminary positioning of part, while lifting seat is moved down, second positioning ring is inserted into the inner cavity of thin-wall cavity class part, and inside and outside clamping is formed with first positioning ring, not only improve the accuracy of positioning, also help to disperse stress in clamping process, reduce the risk of part deformation, in addition, by the drive of second motor, rotating shaft is synchronously wound connecting rope, sliding block is smoothly slid in sliding groove, so that a plurality of arc-shaped clamping plates are driven to evenly and synchronously clamp the outside of thin-wall cavity class part, ensure the uniform distribution of clamping force, effectively avoid the part deformation problem caused by different clamping force of each point, so as to protect the machining integrity of thin-wall cavity class part. BRIEF DESCRIPTION OF DRAWINGS
[0016] Figure 1 It is the whole structure schematic diagram of the utility model;
[0017] Figure 2 It isFigure 1 Enlarged view of middle A;
[0018] Figure 3 Second overall structure schematic view of the utility model;
[0019] Figure 4 For Figure 3 Enlarged view of middle B;
[0020] Icon: 1, bottom plate; 2, first positioning ring; 3, stand; 4, lifting groove; 5, first motor; 6, lead screw; 7, lifting seat; 8, connecting block; 9, mounting plate; 10, second positioning ring; 11, sliding slot; 12, sliding block; 13, spring; 14, mounting groove; 15, second motor; 16, rotating shaft; 17, connecting rope; 18, arc-shaped clamping plate. DETAILED DESCRIPTION
[0021] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the utility model.
[0022] Please refer to Figures 1-4 The utility model provides a kind of thin-walled cavity class part fixed force clamp, including bottom plate 1, the upper side of bottom plate 1 is fixedly connected with stand 3, lifting groove 4 is set in the outside of stand 3, lifting mechanism is installed in the inside of stand 3, installation plate 9 is fixedly connected outside lifting mechanism, sliding slot 11 is set in the lower side of installation plate 9, sliding block 12 is slidably connected in the inside of sliding slot 11, arc-shaped clamping plate 18 is fixedly connected outside sliding block 12, spring 13 is fixedly connected in the inside of sliding slot 11, and the end of spring 13 is fixedly connected to one side of sliding block 12, synchronous stretching mechanism is installed in the bottom of installation plate 9.
[0023] The upper side of bottom plate 1 is fixedly connected with first positioning ring 2, and first positioning ring 2 is arranged to facilitate positioning and placing of the thin-walled cavity class part.
[0024] Lifting mechanism includes lead screw 6 and lifting seat 7, lead screw 6 is rotatably connected to the inside of lifting groove 4, and lifting seat 7 is threadedly connected to the outside of lead screw 6.
[0025] The upper side of stand 3 is fixedly connected with first motor 5, and lead screw 6 is fixedly connected between first motor 5, and the lifting seat 7 can be controlled to lift by rotating lead screw 6 by operating first motor 5.
[0026] Connecting block 8 is fixedly connected outside lifting seat 7, and connecting block 8 is fixedly connected to one side of mounting plate 9.
[0027] The bottom of the mounting plate 9 is fixedly connected with a second positioning ring 10, and the inner diameter of the second positioning ring 10 is smaller than the inner diameter of the first positioning ring 2, so that the thin-walled cavity type part can be positioned and installed through the first positioning ring 2 and the second positioning ring 10.
[0028] The number of the sliding grooves 11 is three groups and arranged in a ring shape.
[0029] The synchronous stretching mechanism comprises a mounting groove 14, a rotating shaft 16 and a connecting rope 17, the mounting groove 14 is arranged at the bottom center of the mounting plate 9, the rotating shaft 16 is rotatably connected to the inner side of the mounting groove 14, the connecting rope 17 is fixedly connected to the outer side of the rotating shaft 16, and the end of the connecting rope 17 is fixedly connected to the outer side of the sliding block 12 through the mounting plate 9, the upper side of the mounting plate 9 is fixedly connected with a second motor 15, and the rotating shaft 16 is fixedly connected with the second motor 15.
[0030] The working principle of the thin-walled cavity type part positioning clamp based on the embodiment is that when the clamp is used for clamping and processing the thin-walled cavity type part, first, the first motor 5 is operated to control the rotation of the lead screw 6, so that the lifting seat 7 slides upward under the limiting action of the lifting groove 4, so that there is enough space between the mounting plate 9 and the bottom plate 1 to enable the thin-walled cavity type part to be put in, and the thin-walled cavity type part is put into the first positioning ring 2, then the first motor 5 is controlled to reverse, so that the lead screw 6 is controlled to reverse and the lifting seat 7 is controlled to move downward, so that the mounting plate 9 is tightly pressed against the upper end surface of the thin-walled cavity type part, the positioning in the vertical direction is completed, and at this time the second positioning ring 10 is inserted into the inner cavity of the thin-walled cavity type part, the first positioning ring 2 and the second positioning ring 10 are used in cooperation to achieve a certain positioning effect, at this time the second motor 15 can be operated, so that the rotating shaft 16 is synchronously wound with the connecting rope 17, the sliding block 12 is driven to slide in the sliding groove 11, and a plurality of arc-shaped clamping plates 18 are synchronously clamped to the outside of the thin-walled cavity type part, so that the thin-walled cavity type part is balanced and clamped, which not only enables the thin-walled cavity type part to be quickly and automatically clamped, but also avoids deformation caused by different clamping forces during processing of the thin-walled cavity type part, and the processing integrity of the thin-walled cavity type part is protected.
[0031] Although the embodiments of the utility model have been shown and described, it can be understood by those skilled 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 fixture for clamping a thin-walled, cavity-type part, characterized in that: The utility model provides a kind of synchronous stretching mechanism, including bottom plate (1), the upper side of the bottom plate (1) is fixedly connected with stand (3), the outer side of the stand (3) is equipped with lifting groove (4), the inner side of the stand (3) is installed with lifting mechanism, the outside of the lifting mechanism is fixedly connected with mounting plate (9), the lower side of the mounting plate (9) is equipped with sliding slot (11), the inner side of the sliding slot (11) is slidably connected with sliding block (12), the outside of the sliding block (12) is fixedly connected with arc clamping plate (18), the inner side of the sliding slot (11) is fixedly connected with spring (13), and the end of spring (13) is fixedly connected to one side of sliding block (12), and the bottom of the mounting plate (9) is installed with synchronous stretching mechanism.
2. The fixture of claim 1, wherein: The upper side of the bottom plate (1) is fixedly connected with a first positioning ring (2).
3. The fixture of claim 1, wherein: The lifting mechanism includes a lead screw (6) and a lifting seat (7), the lead screw (6) is rotatably connected to the inner side of the lifting groove (4), and the lifting seat (7) is threadedly connected to the outside of the lead screw (6).
4. The fixture of claim 3, wherein: The upper side of the stand (3) is fixedly connected with a first motor (5), and the lead screw (6) and the first motor (5) are fixedly connected.
5. The fixture of claim 3, wherein: The outside of the lifting seat (7) is fixedly connected with a connecting block (8), and the connecting block (8) is fixedly connected to one side of the mounting plate (9).
6. The fixture of claim 2, wherein: The bottom of the mounting plate (9) is fixedly connected with a second positioning ring (10), and the inner diameter of the second positioning ring (10) is smaller than the inner diameter of the first positioning ring (2).
7. The fixture of claim 1 wherein: The number of the sliding slots (11) is three groups and arranged in a ring shape.
8. The fixture of claim 1 wherein: The synchronous stretching mechanism includes a mounting groove (14), a rotating shaft (16) and a connecting rope (17), the mounting groove (14) is provided at the bottom center of the mounting plate (9), the rotating shaft (16) is rotatably connected to the inner side of the mounting groove (14), the connecting rope (17) is fixedly connected to the outside of the rotating shaft (16), and the end of the connecting rope (17) passes through the mounting plate (9) and is fixedly connected to the outside of the sliding block (12), the upper side of the mounting plate (9) is fixedly connected with a second motor (15), and the rotating shaft (16) and the second motor (15) are fixedly connected.