Clamping mechanism for CNC machining

Abstract

The utility model relates to the field of CNC (computer numerical control) machining, in particular to a clamping mechanism for CNC machining, which comprises a base, a plurality of limiting chutes are equidistantly formed in the top of the base, clamping mechanisms are slidably mounted in the limiting chutes, and a placing cavity is formed in the base and positioned on one side of the corresponding limiting chute; by means of the electric telescopic rod and the corresponding clamping mechanism, metal products which are different in diameter and need to be machined within a certain range can be clamped, and by means of a sliding mechanism of the clamping mechanism, a corresponding limiting sliding block and a corresponding abutting arc block, the clamping mechanism can clamp the metal products to be machined. A user can conveniently clamp metal products with small diameters within a certain range, and meanwhile, the user can conveniently adjust the clamping height of the metal products within a certain height range according to requirements through a second electric telescopic rod.

Description

Technical Field

[0001] The utility model relates to the technical field of CNC processing, in particular to a clamping mechanism for CNC processing. Background Art

[0002] CNC machining usually refers to computer digital controlled precision machining, which is usually used for metal products. During machining, a clamping device is needed to clamp the metal product. In the process of automatic clamping device for CNC machining of metal products, the metal product is generally placed on the surface of the workbench and clamped by the clamping device to keep it in a stable position.

[0003] However, the existing clamping mechanism for CNC machining can only clamp cylindrical metal products of a specified size, which makes the application scope narrow. When clamping a cylindrical metal product of a larger size, it is necessary to replace the clamping mechanism with an appropriate one. Utility Model Content

[0004] The utility model aims to solve the shortcomings in the prior art and proposes a clamping mechanism for CNC machining.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] A clamping mechanism for CNC machining, comprising a base, a plurality of limit slide grooves are provided at equal distances on the top of the base, a clamping mechanism is slidably installed in the limit slide groove, and a placement cavity is provided inside the base on one side of the corresponding limit slide groove, a first electric telescopic rod is horizontally placed in the placement cavity, and an output end of the first electric telescopic rod is connected to the corresponding clamping mechanism;

[0007] The clamping mechanism includes a limit sliding block, a second electric telescopic rod is vertically arranged inside the limit sliding block, and the output end of the second electric telescopic rod is connected to a fixed block, a sliding groove is provided on one side of the fixed block close to the middle of the base, a sliding mechanism is provided at the bottom of the sliding groove, and a limit sliding block is installed in the sliding groove through the sliding mechanism, one end of the limit sliding block passes through the sliding groove and is connected to a connecting plate, and one end of the connecting plate is connected to a pressing arc block.

[0008] In addition, a preferred structure is that the sliding mechanism includes two bearing seats, a lead screw is arranged in the middle between the two bearing seats, and the lead screw is driven by a forward and reverse drive motor.

[0009] In addition, a preferred structure is that the outer wall of the screw rod is threadedly connected with a nut pair, and the top of the nut pair is connected to the bottom of the limiting sliding block on a side away from the center of the base.

[0010] In addition, a preferred structure is that a placement groove is opened in the middle of the top of the base, and a drainage groove is opened at the top of the base and equidistantly outside the corresponding placement groove, and the bottom of the drainage groove is inclined from one side of the placement groove to the other side.

[0011] In addition, a preferred structure is that a fixed base is installed at the bottom of the base, and a plurality of mounting holes are opened at equal distances on the top of the fixed base and outside the corresponding base.

[0012] In addition, a preferred structure is that a control switch group is installed on one side of the top of the fixed base and outside the corresponding base, and the control switch group controls the first electric telescopic rod, the second electric telescopic rod, and the forward and reverse drive motor through electrical signal connections.

[0013] The beneficial effects of the utility model are:

[0014] In the utility model, the electric telescopic rod and the corresponding clamping mechanism can clamp metal products of different diameters within a certain range that need to be processed, and the sliding mechanism of the clamping mechanism and the corresponding limiting sliding block and pressing arc block can facilitate users to clamp metal products with smaller diameters within a certain range. At the same time, the second electric telescopic rod can facilitate users to adjust the clamping height of metal products within a certain height range according to needs. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 A schematic diagram of the structure of a clamping mechanism for CNC machining proposed by the utility model Figure 1 ;

[0016] Figure 2 This is a schematic structural diagram of a cross section of a clamping mechanism for CNC machining proposed by the utility model;

[0017] Figure 3 for Figure 2 A partial enlarged structural schematic diagram;

[0018] Figure 4 The utility model proposes a structural schematic diagram of a clamping mechanism for CNC machining Figure 2 ;

[0019] Figure 5 It is a schematic structural diagram of the cross section of the clamping mechanism proposed by the utility model.

[0020] In the figure: 1 fixed base, 2 base, 3 clamping mechanism, 31 limit slider, 32 fixed block, 33 limit slider, 34 connecting plate, 35 second electric telescopic rod, 36 sliding mechanism, 361 forward and reverse driving motor, 362 screw rod, 363 nut pair, 4 arc pressing block, 5 first electric telescopic rod. DETAILED DESCRIPTION

[0021] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0022] Reference Figure 1-4 A clamping mechanism for CNC processing includes a base 2, a plurality of limit slide grooves are equidistantly provided on the top of the base 2, a clamping mechanism 3 is slidably installed in the limit slide groove, and a placement cavity is provided inside the base 2 on one side of the corresponding limit slide groove, a first electric telescopic rod 5 is horizontally placed in the placement cavity, and the output end of the first electric telescopic rod 5 is connected to the corresponding clamping mechanism 3, and the number of the clamping mechanisms 3 is four, thereby facilitating the improvement of the stability when clamping the metal product to be processed.

[0023] The clamping mechanism 3 includes a limit slider 31, a second electric telescopic rod 35 is vertically arranged inside the limit slider 31, and the output end of the second electric telescopic rod 35 is connected to a fixed block 32, and a slide groove is provided on one side of the fixed block 32 close to the middle of the base 2, and a sliding mechanism 36 is provided at the bottom of the slide groove, and a limit slider 33 is installed in the slide groove through the sliding mechanism 36, one end of the limit slider 33 passes through the slide groove and is connected to a connecting plate 34, and one end of the connecting plate 34 is connected to a pressing arc block 4, wherein the pressing arc block 4 is made of flexible material, and the metal product to be processed can be flexibly pressed by the pressing arc block 4.

[0024] The sliding mechanism 36 includes two bearing seats, a screw rod 362 is arranged in the middle between the two bearing seats, and the screw rod 362 is driven by a forward and reverse driving motor 361. The outer wall of the screw rod 362 is threadedly connected with a nut pair 363, and the top of the nut pair 363 is connected to the bottom of the side of the limit sliding block 33 away from the center of the base 2, and the sliding mechanism 36 is an existing mechanism and technology, so this technical solution will not be described in detail.

[0025] A placement groove is provided in the middle of the top of the base 2, and a drainage groove is provided at an equal distance on the top of the base 2 and outside the corresponding placement groove, and the bottom of the drainage groove is inclined from one side of the placement groove to the other side, wherein the drainage groove facilitates the discharge of debris generated during the processing of metal products.

[0026] A fixed base 1 is installed at the bottom of the base 2, and a plurality of mounting holes are equidistantly provided at the top of the fixed base 1 and outside the corresponding base 2, through which bolts are driven, so as to facilitate the connection between the fixed base 1 and the CNC processing device.

[0027] A control switch group is installed on one side of the top of the fixed base 1 and outside the corresponding base 2, and the control switch group controls the first electric telescopic rod 5, the second electric telescopic rod 35, and the forward and reverse drive motor 361 through electrical signal connections. The first electric telescopic rod 5, the second electric telescopic rod 35, and the forward and reverse drive motor 361 are all existing structures, so this technical solution will not be elaborated in detail.

[0028] In this embodiment, the metal product to be processed is placed in the middle of the top of the base 2, and then the first electric telescopic rod 5 is closed by controlling the switch group, so that the electric telescopic rod drives the corresponding clamping mechanism 3 to move toward the center of the base 2, and then the metal product is clamped by the clamping mechanism 3, which makes it convenient for users to clamp metal products of different diameters that need to be processed within a certain range.

[0029] At the same time, when it is necessary to clamp metal products with smaller diameters within a certain range, the forward and reverse drive motor 361 drives the nut pair 363 to move toward the middle of the base 2, while driving the corresponding limit sliding block 33 and the pressure arc block 4 to move toward the metal product. When the metal product is clamped and fixed, the forward and reverse drive motor is turned off by controlling the switch group.

[0030] At the same time, the second electric telescopic rod 35 can facilitate the user to adjust the clamping height of metal products within a certain height range according to needs.

[0031] In the utility model, the electric telescopic rod 5 and the corresponding clamping mechanism 3 can clamp metal products of different diameters within a certain range that need to be processed, and the sliding mechanism 36 of the clamping mechanism 3 and the corresponding limiting sliding block 33 and the pressing arc block 4 can facilitate the user to clamp metal products with smaller diameters within a certain range. At the same time, the second electric telescopic rod 35 can facilitate the user to adjust the clamping height of metal products within a certain height range according to needs.

[0032] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A clamping mechanism for CNC machining, comprising a base (2), characterized in that: A plurality of limit slide grooves are provided at equal intervals on the top of the base (2), a clamping mechanism (3) is slidably installed in the limit slide groove, and a placement cavity is provided inside the base (2) on one side of the corresponding limit slide groove, a first electric telescopic rod (5) is horizontally placed in the placement cavity, and an output end of the first electric telescopic rod (5) is connected to the corresponding clamping mechanism (3); The clamping mechanism (3) comprises a limit slider (31), a second electric telescopic rod (35) is vertically arranged inside the limit slider (31), and the output end of the second electric telescopic rod (35) is connected to a fixed block (32), a sliding groove is provided on one side of the fixed block (32) close to the middle of the base (2), a sliding mechanism (36) is provided at the bottom of the sliding groove, and a limit slider (33) is installed in the sliding groove through the sliding mechanism (36), one end of the limit slider (33) passes through the sliding groove and is connected to a connecting plate (34), and one end of the connecting plate (34) is connected to a pressing arc block (4).

2. A clamping mechanism for CNC machining according to claim 1, characterized in that: The sliding mechanism (36) comprises two bearing seats, a screw rod (362) is arranged in the middle between the two bearing seats, and the screw rod (362) is driven by a forward and reverse driving motor (361).

3. A clamping mechanism for CNC machining according to claim 2, characterized in that: The outer wall of the screw rod (362) is threadedly connected with a nut pair (363), and the top of the nut pair (363) is connected to the bottom of the side of the limiting sliding block (33) away from the center of the base (2).

4. A clamping mechanism for CNC machining according to claim 1, characterized in that: A placement groove is provided in the middle of the top of the base (2), and drainage grooves are provided at equal distances on the top of the base (2) and outside the corresponding placement grooves, and the bottom of the drainage groove is inclined from one side of the placement groove to the other side.

5. The clamping mechanism for CNC machining according to claim 1, characterized in that: A fixed base (1) is installed at the bottom of the base (2), and a plurality of mounting holes are provided at equal distances on the top of the fixed base (1) and outside the corresponding base (2).

6. A clamping mechanism for CNC machining according to claim 5, characterized in that: A control switch group is installed on one side of the top of the fixed base (1) and outside the corresponding base (2), and the control switch group controls the first electric telescopic rod (5), the second electric telescopic rod (35), and the forward and reverse drive motor (361) through electrical signal connections.

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