Quick-change arc turning clamping device

Abstract

The utility model relates to the technical field of positioning and clamping, and discloses a quick-change arc turning clamping device which comprises a flange plate and a connecting seat arranged on the outer wall of the flange plate, an installing and fixing mechanism is arranged on the connecting seat, a pressing and disassembling mechanism is arranged on the installing and fixing mechanism, a clamping block is inserted into an inserting groove, and the pressing and disassembling mechanism is arranged on the clamping block. The inserting column is rotated clockwise, the clamping block rotates clockwise, then the clamping block rotates into the limiting rotating groove, the limiting rotating groove can preliminarily limit the clamp head and extrude the clamping protruding block, the extruded clamping protruding block drives the positioning rod to move downwards and extrude the spring, and at the moment, the clamping block continues to rotate; and when the positioning hole is driven to move to the position above the positioning rod, the spring rebounds and resets to push the positioning rod and the clamping convex block to be inserted into the positioning rod, so that the clamping block is limited and fixed, the fixture head can be fixedly mounted, the mounting mode is simple and convenient, and the fixture head can be mounted without any tool.

Description

Technical Field

[0001] The utility model belongs to the technical field of positioning and clamping, and specifically relates to a circular arc clamping device for a quick-change lathe. Background Technique

[0002] Currently, when machining the surface arc of a metal workpiece, the workpiece to be machined needs to be placed in a fixture, and then the machine tool is used for turning processing.

[0003] When facing different types of metal workpieces, different fixture heads need to be used. However, the existing replacement and installation of fixture heads are relatively cumbersome, and it will take a long time for disassembly and replacement, which will greatly affect the processing efficiency of metal workpieces. At the same time, it is not convenient for workers to replace and disassemble.

[0004] In view of this, the present utility model is specifically proposed. Content of the Utility Model

[0005] In order to solve the above technical problems that when facing different types of metal workpieces, different fixture heads need to be used, but the existing replacement and installation of fixture heads are relatively cumbersome, and it will take a long time for disassembly and replacement, which will greatly affect the processing efficiency of metal workpieces, and it is not convenient for workers to replace and disassemble, the basic concept of the technical solution adopted by the present utility model is:

[0006] A circular arc clamping device for a quick-change lathe, comprising a flange;

[0007] A connecting seat arranged on the outer wall of the flange, an installation and fixing mechanism is arranged on the connecting seat, a pressing and disassembling mechanism is arranged on the installation and fixing mechanism, and the installation and fixing mechanism includes an installation seat fixedly connected to the outer wall of one end of the connecting seat:

[0008] A slot is opened on the outer wall of the end of the installation seat away from the connecting seat, a limiting rotating groove is opened on the inner wall of the slot, a clamping block is slidably connected to the inner wall of the limiting rotating groove, an inserting column is fixedly connected to the outer wall of the clamping block, a fixture head is fixedly connected to one end outer wall of the inserting column, a positioning hole is opened on the outer wall of the clamping block, a sliding hole is opened at the bottom end of the inner wall of the limiting rotating groove, a spring is fixedly connected to the inner wall of the sliding hole, a positioning rod is fixedly connected to the end of the spring away from the sliding hole, and a clamping convex block is fixedly connected to the end of the positioning rod away from the spring.

[0009] As a preferred embodiment of the present utility model, the pressing and disassembling mechanism includes a connecting plate fixedly connected to the outer wall of the positioning rod, a fixing plate is fixedly connected to the outer wall of the end of the connecting plate away from the positioning rod, a connecting rod is fixedly connected to the outer wall of the fixing plate, and a pressing plate is fixedly connected to the end of the connecting rod away from the fixing plate.

[0010] As a preferred embodiment of the present invention, the number of the card blocks is two, and the card blocks are distributed on both sides of the outer wall of the plug post in an oppositely symmetrical structure.

[0011] As a preferred implementation manner of the utility model, the outer wall of the clamping block fits in close contact with the inner wall of the limiting rotation groove, and the inner wall of the positioning hole fits in close contact with the outer wall of the positioning rod.

[0012] As a preferred embodiment of the utility model, the end of the clamping block away from the positioning rod is provided with a semicircular arc surface, and the outer wall of the clamping block is provided with an arc setting.

[0013] As a preferred embodiment of the present utility model, the number of the connecting rods is two, and the connecting rods are symmetrically distributed on the outer wall of the fixing plate.

[0014] As a preferred embodiment of the present invention, the pressing plate is configured to be in an arc shape, and the outer wall of the pressing plate is matched with the outer wall of the mounting seat.

[0015] Compared with the prior art, the utility model has the following beneficial effects:

[0016] The clamping block is first aligned with the slot provided on the mounting seat, and then the plug post is inserted into the mounting slot provided on the outer wall of one end of the mounting seat, and the clamping block will be inserted into the slot. After the insertion is completed, the clamp head can be rotated clockwise, at this time, the plug post and the clamping block can be driven to rotate clockwise, and then the clamping block will be rotated to the limit rotation groove, and the clamp head can be initially limited by the limit rotation groove. As the clamping block continues to rotate, it can contact and squeeze the card protrusion, and the squeezed card protrusion will drive the positioning rod to move downward, and at the same time, the positioning rod will squeeze the spring during the movement. At this time, the clamping block will continue to rotate, and when driving the positioning hole to move to the top of the positioning rod, the spring rebounds and resets to push the positioning rod and the card protrusion to be inserted therein, thereby forming a limiting and fixing effect on the clamping block. In this way, the clamp head can be fixed and installed. This installation method is relatively simple and the clamp head can be installed without any tools.

[0017] The utility model, when the pressure plate is pressed downward, the pressure plate will drive the connecting rod to move downward. When the connecting rod moves downward, the fixing plate and the connecting plate will be driven downward, so that the connecting plate will drive the positioning rod to move downward, so that the positioning rod and the card protrusion can be driven to separate from the inner wall of the positioning hole, so as to release the positioning relationship with the card block. Subsequently, the clamp head can be rotated counterclockwise to drive the card block to rotate and separate from the inner wall of the limit rotating groove, and then move to the slot, and the disassembly work can be completed by pulling out the clamp head.

[0018] The specific implementation of the utility model is further described in detail below in conjunction with the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In the accompanying drawings:

[0020] Figure 1 is a schematic diagram of the overall structure of the present utility model;

[0021] Figure 2 is a schematic diagram of the separated structure of the present utility model;

[0022] Figure 3 is a schematic diagram of the separated structure of the installation and fixing mechanism of the present utility model;

[0023] Figure 4 is a partially sectional schematic diagram of the installation and fixing mechanism of the present utility model;

[0024] Figure 5 is a partial schematic diagram of the installation and fixing mechanism of the present utility model;

[0025] Figure 6 is a sectional schematic diagram of the pressing and disassembling mechanism of the present utility model.

[0026] In the figure: 1. Flange; 2. Connecting seat; 31. Installation and fixing mechanism; 311. Installation seat; 312. Slot; 313. Limit rotating slot; 314. Block; 315. Plug post; 316. Clamping head; 317. Positioning hole; 318. Spring; 319. Positioning rod; 3110. Clamping projection; 32. Pressing and disassembling mechanism; 321. Connecting plate; 322. Fixed plate; 323. Connecting rod; 324. Pressing plate. Detailed implementation manners

[0027] To make the objectives, technical solutions and advantages of the embodiments of the present utility model clearer, the technical solutions in the embodiments will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. The following embodiments are used to illustrate the present utility model.

[0028] Such as Figures 1 to 6As shown in the figure, a circular arc clamping device for a quick-change vehicle includes a flange 1, a connecting seat 2 provided on the outer wall of the flange 1, an installation and fixing mechanism 31 provided on the connecting seat 2, and a pressing and disassembling mechanism 32 provided on the installation and fixing mechanism 31. The installation and fixing mechanism 31 includes an installation seat 311 fixedly connected to one end outer wall of the connecting seat 2. A slot 312 is opened on the outer wall of the installation seat 311 away from the connecting seat 2. A limiting rotating groove 313 is opened on the inner wall of the slot 312. A clamping block 314 is slidably connected to the inner wall of the limiting rotating groove 313. A plug post 315 is fixedly connected to the outer wall of the clamping block 314. A clamping head 316 is fixedly connected to one end outer wall of the plug post 315. A positioning hole 317 is opened on the outer wall of the clamping block 314. A sliding hole is opened at the bottom end of the inner wall of the limiting rotating groove 313. A spring 318 is fixedly connected to the inner wall of the sliding hole. A positioning rod 319 is fixedly connected to the end of the spring 318 away from the sliding hole. A clamping projection 3110 is fixedly connected to the end of the positioning rod 319 away from the spring 318.

[0029] Furthermore, the number of the clamping blocks 314 is two, and the clamping blocks 314 are symmetrically distributed on both sides of the outer wall of the plug post 315 in an opposite and symmetric structure. In this way, the symmetric two sides of the plug post 315 can be supported and installed synchronously, thereby improving the stability after installation.

[0030] Furthermore, the outer wall of the clamping block 314 is fitted with the inner wall of the limiting rotating groove 313, and the inner wall of the positioning hole 317 is fitted with the outer wall of the positioning rod 319. In this way, the tight fit between the clamping block 314 and the inner wall of the limiting rotating groove 313 can be ensured, thereby ensuring the stability after clamping installation.

[0031] Even further, a semi-circular arc surface is opened at the end of the clamping projection 3110 away from the positioning rod 319, and an arc is provided on the outer wall of the clamping block 314. In this way, when the clamping block 314 moves, the contact area with the clamping projection 3110 can be reduced, thereby facilitating the pressing of the positioning rod 319 to move downward and facilitating the installation operation.

[0032] The pressing and disassembling mechanism 32 includes a connecting plate 321 fixedly connected to the outer wall of the positioning rod 319. A fixing plate 322 is fixedly connected to one end outer wall of the connecting plate 321 away from the positioning rod 319. A connecting rod 323 is fixedly connected to the outer wall of the fixing plate 322. A pressing plate 324 is fixedly connected to the end of the connecting rod 323 away from the fixing plate 322.

[0033] Furthermore, the number of the connecting rods 323 is two, and the connecting rods 323 are symmetrically distributed on the outer wall of the fixing plate 322. In this way, when the pressing plate 324 is pressed, the positioning rods 319 on both sides can be driven to move downward synchronously, thereby directly completing the disassembly work on the clamping blocks 314 on both sides.

[0034] Furthermore, the pressing plate 324 is configured to be in an arc shape, and the outer wall of the pressing plate 324 is matched with the outer wall of the mounting seat 311, so that when the pressing plate 324 is pressed down, there will be no intersection or collision with the outer wall of the mounting seat 311, which facilitates the disassembly work.

[0035] The implementation principle of the arc clamping device for a quick-changing vehicle of the present embodiment is as follows: first, align the clamping block 314 with the slot 312 provided on the mounting seat 311, and then insert the plug post 315 into the mounting slot provided on the outer wall of one end of the mounting seat 311, and then the clamping block 314 will be inserted into the slot 312. After the insertion is completed, the clamp head 316 can be rotated clockwise, and the plug post 315 and the clamping block 314 can be driven to rotate clockwise. Then the clamping block 314 will rotate to the limiting rotation groove 313, and the limiting rotation groove 313 can be used to perform a preliminary limiting effect on the clamping head 316. As the clamping block 314 continues to rotate, The clamping block 314 can be contacted and squeezed to form a locking cam 3110, and the squeezed locking cam 3110 will drive the positioning rod 319 to move downward. At the same time, the positioning rod 319 will squeeze the spring 318 during the movement. At this time, the clamping block 314 will continue to rotate, and when the positioning hole 317 is driven to move to the top of the positioning rod 319, the spring 318 rebounds and resets to push the positioning rod 319 and the locking cam 3110 to be inserted therein, thereby forming a limiting and fixing effect on the clamping block 314. In this way, the clamp head 316 can be fixed and installed. This installation method is relatively simple and the clamp head 316 can be installed without any tools.

[0036] When the clamp head 316 needs to be disassembled, the pressure plate 324 can be directly pressed downward. At this time, the pressure plate 324 will drive the connecting rod 323 to move downward. When the connecting rod 323 moves downward, the fixing plate 322 and the connecting plate 321 will move downward, so that the connecting plate 321 will drive the positioning rod 319 to move downward, so that the positioning rod 319 and the card protrusion 3110 can be driven to disengage from the inner wall of the positioning hole 317, thereby releasing the positioning relationship with the card block 314, and then the clamp head 316 can be rotated counterclockwise to drive the card block 314 to rotate and disengage from the inner wall of the limit rotating groove 313, and then move to the slot 312 out, and the clamp head 316 can be pulled out to complete the disassembly work.

Claims

1. A circular arc clamping device for a quick-change vehicle, comprising a flange plate (1); The connecting seat (2) arranged on the outer wall of the flange (1), characterized in that, An installation and fixing mechanism (31) is arranged on the connecting seat (2), and a pressing and disassembling mechanism (32) is arranged on the installation and fixing mechanism (31). The installation and fixing mechanism (31) includes an installation seat (311) fixedly connected to the outer wall of one end of the connecting seat (2): A slot (312) is opened on the outer wall of the installation seat (311) away from the connecting seat (2). A limiting rotating groove (313) is opened on the inner wall of the slot (312). A clamping block (314) is slidably connected to the inner wall of the limiting rotating groove (313). An insertion column (315) is fixedly connected to the outer wall of the clamping block (314). A clamping head (316) is fixedly connected to the outer wall of one end of the insertion column (315). A positioning hole (317) is opened on the outer wall of the clamping block (314). A sliding hole is opened at the bottom end of the inner wall of the limiting rotating groove (313). A spring (318) is fixedly connected to the inner wall of the sliding hole. A positioning rod (319) is fixedly connected to the end of the spring (318) away from the sliding hole. A clamping convex block (3110) is fixedly connected to the end of the positioning rod (319) away from the spring (318).

2. The circular arc clamping device for a quick-change vehicle according to claim 1, characterized in that The pressing and disassembling mechanism (32) includes a connecting plate (321) fixedly connected to the outer wall of the positioning rod (319). A fixing plate (322) is fixedly connected to the outer wall of the connecting plate (321) away from the positioning rod (319). A connecting rod (323) is fixedly connected to the outer wall of the fixing plate (322). A pressing plate (324) is fixedly connected to the end of the connecting rod (323) away from the fixing plate (322).

3. A circular arc clamping device for a quick-change vehicle according to claim 1, characterized in that, The number of the clamping blocks (314) is two, and the clamping blocks (314) are symmetrically distributed on both sides of the outer wall of the insertion column (315) in an opposite and symmetrical structure.

4. A circular arc clamping device for a quick-change vehicle according to claim 1, characterized in that The outer wall of the clamping block (314) is in fit with the inner wall of the limiting rotating groove (313), and the inner wall of the positioning hole (317) is in fit with the outer wall of the positioning rod (319).

5. A rapid tool change lathe circular arc clamping device according to claim 1, characterized in that, A semi-circular arc surface is opened at the end of the clamping convex block (3110) away from the positioning rod (319), and an arc is arranged on the outer wall of the clamping block (314).

6. The arc clamping device for a quick-change vehicle according to claim 2, characterized in that, The number of the connecting rods (323) is two, and the connecting rods (323) are symmetrically distributed on the outer wall of the fixing plate (322).

7. A circular arc clamping device for a quick changeover vehicle according to claim 2, characterized in that, The pressing plate (324) is set in an arc shape, and the outer wall of the pressing plate (324) is in fit with the outer wall of the installation seat (311).

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