Flexible clamping mechanism for thin-wall part

Abstract

The utility model relates to the technical field of clamping and fastening of thin-wall parts in machining, and provides a flexible clamping mechanism for thin-wall parts, which comprises two protective shells which are fixedly connected through a connecting strip; and the fixing mechanism is installed on the inner side of the protective shell and used for adaptively fixing the thin-wall part. According to the limiting device for the thin-walled workpiece, through cooperation of parts such as the limiting columns, the limiting columns can adaptively press and fix the uneven thin-walled workpiece under the action of the extension springs in the process that the uneven thin-walled workpiece is pressed by the multiple limiting columns, the limiting effect on the thin-walled workpiece is improved, and the overall practicability of the device is improved. By means of the technical scheme, the problem that in the prior art, when clamping equipment clamps an uneven workpiece, the contact area between the clamping equipment and the workpiece is small, and consequently the workpiece is prone to shaking in the machining process is solved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the clamping fastening technical field of thin wall class spare in machining, specifically, relate to a flexible clamping mechanism of thin wall spare. BACKGROUND

[0002] With the development of mechanical products towards light weight, complexity, integration and good human-computer interaction, more and more product parts adopt irregular structure design concept, and are thin-walled structural parts. When machining such parts, machining centers and other equipment are usually used for cutting. In order to ensure the machining quality and consistency of the parts, the parts must be stably and accurately clamped on the machine tool table. However, the machine tool table is generally of standard structure and has no good flexibility, so it cannot directly clamp the parts and needs to introduce an intermediate connecting device to fix the relative position of the machine tool table and the parts. The fixture, as an intermediate device connecting the machine tool table and the parts, generally has a standard interface connecting the machine tool table and a special interface connecting the parts. In use, the standard interface is fixedly connected with the machine tool table, and the special interface is fixedly connected with the parts, that is, the clamping of the parts on the machine tool table is indirectly realized.

[0003] The existing clamping mechanism is generally manually placed in the clamping mechanism. However, the clamping mechanism is generally clamped on the outer wall of the workpiece by a flat clamping plate. However, when clamping and machining the uneven workpiece, the clamping plate can only be clamped on the end of the uneven workpiece, which causes the workpiece to shake easily during machining, thereby affecting the machining. Therefore, the flexible clamping mechanism of the thin-walled part is provided to solve the above problems. UTILITY MODEL CONTENTS

[0004] The utility model provides a flexible clamping mechanism of thin-walled part, solves the problem that the clamping device in the related art has small contact area with the workpiece during clamping the uneven workpiece, which causes the workpiece to shake easily during machining.

[0005] The technical scheme of the utility model is as follows:

[0006] The utility model provides a flexible clamping mechanism of thin -walled spare, include: protection shell, two protection shell are provided with between through connecting strip fixed connection, fixed mechanism, the inside of protection shell is installed for the adaptive fixed of thin -walled spare, and the fixed mechanism includes the drive shell sliding connection in the inside of protection shell, one end of drive shell is fixedly connected with the limit board, one side of limit board is provided with limit post, one end of every limit post is fixedly connected with a limit rod, and the outer wall of limit rod is fixedly connected with a plurality of limit disc, and the inside of limit board is provided with the through -hole of diameter with limit disc is matched.

[0007] Preferably, the fixed mechanism further comprises a first hydraulic cylinder installed at the bottom of the protection shell, the output end of the first hydraulic cylinder is fixedly connected with the drive shell, one end of the limit rod is fixedly connected with a tension spring, the other end of the tension spring is fixedly connected with the inner side of the drive shell, and the inner side of the protection shell is provided with a locking unit for locking and unlocking the thin-walled part.

[0008] Preferably, the limit post is provided with a plurality of limit posts, and the top of each limit post is provided as a spherical shape.

[0009] Preferably, the locking unit comprises two mounting tables fixedly connected with the inner side of the drive shell, one second hydraulic cylinder is mounted at the top of each mounting table, the output end of each second hydraulic cylinder is fixedly connected with a driving plate, one net-shaped plate is fixedly connected with one end of the two driving plates, the two net-shaped plates are arranged in a staggered manner, a plurality of connecting blocks are fixedly connected with the top of each net-shaped plate, and a fixed plate is fixedly connected with the top of the connecting block.

[0010] Preferably, the inner side of the fixed plate is provided with a limit hole matched with the limit rod, the edge of the limit hole is provided with a first arc surface, and the first arc surface is distributed at the upper and lower ends of the limit hole, the top end and the bottom end of the limit disc are provided with a second arc surface at the edge, and the distance between every two limit discs is matched with the thickness of the fixed plate.

[0011] Preferably, the inner side of the drive shell is provided with a limit sliding groove matched with the fixed plate, and the fixed plate is arranged in the limit sliding groove.

[0012] The working principle and beneficial effects of the utility model are as follows:

[0013] 1. The utility model discloses a cooperation of limiting post and other parts, and the output end of two first hydraulic cylinders respectively drives one drive shell to move to the thin wall piece direction, when limiting post is pressed tightly on the outer wall of thin wall piece, through a plurality of limiting posts, it is fixed by pressing tightly, because the shape of thin wall piece is different, thereby make the uneven of thin wall piece, make a plurality of limiting posts in the process of pressing tightly to uneven thin wall piece, can make limiting post adaptability fixed by pressing tightly under the action of tension spring, increase the limiting effect to thin wall piece, can make thin wall piece uniform stress, and can better complete the fixation according to shape difference, improve the fixation effect of the device, increase the overall practicality of the device.

[0014] 2. The utility model discloses a cooperation of net -like board and other parts, and the output end of second hydraulic cylinder drives drive board to move to the direction of net -like board, and drives net -like board to move to move, thereby drive connecting block to move, and then drive fixed plate to move, when the limiting hole in fixed plate inside is pressed against the outer wall of limiting rod, second hydraulic cylinder stops running, at this moment, the top and bottom of fixed plate are respectively pasted to two limiting discs, and the locking of limiting post is completed at this moment, and the limiting post is fixed well, and then the fixation effect to thin wall piece is increased, and the overall practicality of the device is improved. DRAWINGS

[0015] The utility model will be further explained in detail in connection with the drawings and specific embodiment.

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

[0017] Figure 2 It is flexible clamping mechanism sectional view of the utility model;

[0018] Figure 3 It is fixed mechanism partial structure schematic drawing of the utility model;

[0019] Figure 4 It is limiting post, limiting disc and other parts explosion drawing of the utility model;

[0020] Figure 5 It is limiting rod structure schematic drawing of the utility model.

[0021] In the drawing: 1, protection shell;2, connecting strip;3, fixed mechanism;301, limiting post;302, first hydraulic cylinder;303, drive shell;304, limiting hole;305, limiting plate;306, second hydraulic cylinder;307, mounting table;308, drive plate;309, net -like board;310, connecting block;311, tension spring;312, limiting disc;313, fixed plate;314, limiting rod. SPECIFIC EMBODIMENT

[0022] The technical solutions in the embodiments of the utility model will be clearly and completely described below in combination with the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by those skilled in the art without creative labor are involved in the protection scope of the utility model.

[0023] Please refer to Figures 1-5 A flexible clamping mechanism of thin-walled parts, comprising: two protective shells 1, the two protective shells 1 are fixedly connected through connecting strips 2; a fixing mechanism 3 is installed on the inner side of the protective shell 1 and is used for adaptively fixing the thin-walled part, the fixing mechanism 3 comprises a driving shell 303 slidably connected to the inner side of the protective shell 1, one end of the driving shell 303 is fixedly connected with a limiting plate 305, one side of the limiting plate 305 is provided with a limiting column 301, one end of each limiting column 301 is fixedly connected with a limiting rod 314, the outer wall of the limiting rod 314 is fixedly connected with a plurality of limiting discs 312, and the inner side of the limiting plate 305 is provided with a through hole with a diameter matched with the limiting disc 312; the fixing mechanism 3 further comprises a first hydraulic cylinder 302 installed at the bottom of the protective shell 1, the output end of the first hydraulic cylinder 302 is fixedly connected with the driving shell 303, one end of the limiting rod 314 is fixedly connected with a tensile spring 311, the other end of the tensile spring 311 is fixedly connected with the inner side of the driving shell 303, and the inner side of the protective shell 1 is provided with a locking unit for locking and unlocking the thin-walled part; the limiting column 301 is provided with a plurality of limiting columns 301, and the top of each limiting column 301 is provided with a spherical shape.

[0024] In the embodiment: first, the staff puts the thin-walled part between the two protective shells 1, at this time, the limiting columns 301 in the protective shell 1 on the lower side press against the thin-walled part, the two first hydraulic cylinders 302 are started, the output ends of the two first hydraulic cylinders 302 drive one driving shell 303 to move towards the thin-walled part, when the limiting columns 301 are pressed against the outer wall of the thin-walled part, the thin-walled part is fixedly pressed by the plurality of limiting columns 301, because the shapes of the thin-walled parts are different, the thin-walled part is uneven, so that the plurality of limiting columns 301 can adaptively press and fix the uneven thin-walled part under the action of the tensile spring 311, the limiting effect on the thin-walled part is increased, the thin-walled part can be uniformly stressed, and the fixing can be better completed according to the different shapes, the fixing effect of the device is improved, and the overall practicability of the device is increased.

[0025] Please refer to Figures 2-5The locking unit comprises two mounting tables 307 fixedly connected to the inner side of the driving shell 303, a second hydraulic cylinder 306 is mounted on the top of each of the two mounting tables 307, a driving plate 308 is fixedly connected to the output end of each of the second hydraulic cylinders 306, a mesh plate 309 is fixedly connected to one end of each of the two driving plates 308, the two mesh plates 309 are arranged in a staggered manner, a plurality of connecting blocks 310 are fixedly connected to the top of each of the mesh plates 309, a fixing plate 313 is fixedly connected to the top of the connecting block 310, a limiting hole 304 matched with a limiting rod 314 is formed in the inner side of the fixing plate 313, a first arc surface is arranged at the edge of the limiting hole 304, and the first arc surfaces are arranged at the upper end and the lower end of the limiting hole 304, a second arc surface is arranged at the edge of the top end and the bottom end of the limiting disc 312, the distance between every two limiting discs 312 is matched with the thickness of the fixing plate 313, and a limiting sliding groove matched with the fixing plate 313 is formed in the inner side of the driving shell 303, and the fixing plate 313 is arranged in the limiting sliding groove.

[0026] In the embodiment, when the first hydraulic cylinder 302 stops moving, the second hydraulic cylinder 306 is started at this time, the output end of the second hydraulic cylinder 306 drives the driving plate 308 to move towards the mesh plate 309, and drives the mesh plate 309 to move, thereby driving the connecting block 310 to move, and further driving the fixing plate 313 to move, when the limiting hole 304 in the fixing plate 313 abuts against the outer wall of the limiting rod 314, the second hydraulic cylinder 306 stops running, at this time, the top and the bottom of the fixing plate 313 are respectively abutted against the two limiting discs 312, and at this time, the locking of the limiting column 301 is completed, the limiting column 301 is well fixed, and the fixing effect on the thin-walled part is further improved, and the overall practicability of the device is improved.

[0027] When the fixing plate 313 moves to contact the limiting disc 312 under the action of the second hydraulic cylinder 306, if the gap between the two limiting discs 312 is relatively small and is misaligned with the fixing plate 313, the limiting hole 304 in the fixing plate 313 is in contact with the second arc surface on the limiting disc 312, and an extrusion force is formed under the action of the first arc surface and the second arc surface, so that the limiting disc 312 is locally displaced, so that the fixing plate 313 can finally be clamped between the two limiting discs 312, and the upper and lower fixing of the plurality of limiting columns 301 is formed, so that the overall stability of the device is further improved, and the overall practicability of the device is further improved.

[0028] The above is only a preferred embodiment of the utility model, and is not used to limit the utility model, and any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A flexible clamping mechanism for thin-walled parts, characterized in that, include: A protective shell (1) is provided in two, and the two protective shells (1) are fixedly connected by a connecting strip (2); A fixing mechanism (3) is installed on the inner side of the protective shell (1) for adaptive fixing of thin-walled parts. The fixing mechanism (3) includes a drive shell (303) slidably connected to the inner side of the protective shell (1). One end of the drive shell (303) is fixedly connected to a limiting plate (305). A limiting post (301) is provided on one side of the limiting plate (305). A limiting rod (314) is fixedly connected to one end of each limiting post (301). A plurality of limiting discs (312) are fixedly connected to the outer wall of the limiting rod (314). A through hole with a diameter matching the limiting disc (312) is opened on the inner side of the limiting plate (305).

2. The flexible clamping mechanism for thin-walled parts according to claim 1, characterized in that, The fixing mechanism (3) further includes a first hydraulic cylinder (302) installed at the bottom of the protective shell (1). The output end of the first hydraulic cylinder (302) is fixedly connected to the drive shell (303). One end of the limiting rod (314) is fixedly connected to a tension spring (311). The other end of the tension spring (311) is fixedly connected to the inner side of the drive shell (303). The inner side of the protective shell (1) is provided with a locking unit for locking and unlocking the thin-walled component.

3. The flexible clamping mechanism for thin-walled parts according to claim 1, characterized in that, Multiple limiting posts (301) are provided, and the top of each limiting post (301) is spherical.

4. The flexible clamping mechanism for a thin-walled component according to claim 2, characterized in that, The locking unit includes two mounting platforms (307) fixedly connected to the inner side of the drive housing (303). A second hydraulic cylinder (306) is mounted on the top of each of the two mounting platforms (307). A drive plate (308) is fixedly connected to the output end of each second hydraulic cylinder (306). A mesh plate (309) is fixedly connected to one end of each of the two drive plates (308), and the two mesh plates (309) are staggered. Multiple sets of connecting blocks (310) are fixedly connected to the top of each mesh plate (309), and a fixing plate (313) is fixedly connected to the top of each connecting block (310).

5. The flexible clamping mechanism for a thin-walled component according to claim 4, characterized in that, The inner side of the fixing plate (313) is provided with a limiting hole (304) that matches the limiting rod (314). The edge of the limiting hole (304) is provided with a first arc surface, and the first arc surface is distributed at the upper and lower ends of the limiting hole (304). The top and bottom edges of the limiting disc (312) are provided with a second arc surface. The distance between every two limiting discs (312) matches the thickness of the fixing plate (313).

6. The flexible clamping mechanism for a thin-walled component according to claim 5, characterized in that, The inner side of the drive housing (303) is provided with a limiting groove that matches the fixing plate (313), and the fixing plate (313) is disposed inside the limiting groove.

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