CNC tool clamp

Abstract

The CNC tool clamp comprises a placing rack, a pressing mechanism and a plurality of clamping mechanisms, a plurality of placing grooves are formed in the upper portion of the placing rack, limiting through openings are formed in the bottoms of the placing grooves, each clamping mechanism comprises a positioning block and a clamping block, the clamping blocks are installed at the bottoms of the positioning blocks, and the pressing mechanisms are arranged on the positioning blocks. The positioning block and the clamping block are clamped in the containing groove and the limiting through opening respectively, a clamping groove is formed in the bottom of the clamping block, a limiting assembly used for limiting the positioning block is arranged in the containing groove, a mounting frame is mounted above the containing rack, the pressing mechanism comprises a hydraulic cylinder and a pressing plate, and the hydraulic cylinder is connected with the pressing plate. The hydraulic cylinder is installed above the installation frame, the pressing plate is arranged below the installation frame and located at the top of the clamping mechanism, and the pressing plate is installed at the output end of the hydraulic cylinder. Maintenance personnel can conveniently stand in the operation table to complete maintenance operation through the pedal, the using angle of the pedal can be adjusted to be in a horizontal state through the angle control assembly when the ground is uneven, and therefore it can be guaranteed that the maintenance personnel operate conveniently and smoothly.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of fixture, especially a CNC tooling fixture. BACKGROUND

[0002] The CNC fixture is a clamping device specially used in CNC machining, which is used for fixing and positioning workpieces to ensure the precision and stability of machining. Specifically, the design of the CNC fixture usually includes multiple components such as mounting plates, clamping plates, fixed rods, U-shaped fixed plates, reinforcing mechanisms, etc. These components work together to achieve stable clamping of workpieces.

[0003] Generally, the clamping mechanism and the driving mechanism of the ordinary CNC tooling fixture need to be fixedly connected and arranged, so when clamping workpieces of different shapes, the clamping mechanism needs to be replaced, which is very inconvenient to operate. INVENTION CONTENTS

[0004] In view of the technical problem in the prior art that the clamping mechanism and the driving mechanism need to be fixedly connected and arranged, so when clamping workpieces of different shapes, the clamping mechanism needs to be replaced, which is very inconvenient to operate, the utility model provides a CNC tooling fixture.

[0005] The technical scheme adopted by the utility model is: a CNC tooling fixture, comprising a placing rack, a pressing mechanism and a plurality of clamping mechanisms, a plurality of placing grooves are formed in the upper part of the placing rack, a limiting opening is formed in the bottom of the placing groove, the clamping mechanism comprises a positioning block and a clamping block, the clamping block is installed at the bottom of the positioning block, the positioning block and the clamping block are respectively clamped in the placing groove and the limiting opening, a clamping groove is formed in the bottom of the clamping block, a limiting assembly for limiting the positioning block is arranged in the placing groove, an installation frame is installed on the upper part of the placing rack, the pressing mechanism comprises a hydraulic cylinder and a pressing plate, the hydraulic cylinder is installed on the upper part of the installation frame, the pressing plate is arranged below the installation frame and on the top of the clamping mechanism, and the pressing plate is installed on the output end of the hydraulic cylinder.

[0006] Further, the limiting assembly comprises a bearing frame and a plurality of limiting springs, the bearing frame is used for supporting the positioning block, and the bearing frame is installed on the inner wall of the placing groove through the limiting springs.

[0007] Further, a through groove is formed in the positioning block to reduce the weight of the clamping mechanism.

[0008] Further, anti-shaking mechanisms for fixing the clamping block from both sides are arranged inside the inner wall of the limiting opening on both sides, and a pressure increasing mechanism for controlling the movement of the anti-shaking mechanism is arranged on both sides of the positioning block.

[0009] Further, the anti-shaking mechanism comprises a sealing sheet, a positioning rod, a limiting cylinder and a mounting spring, L-shaped booster grooves are arranged between the inner walls of the limiting through hole and the upper surface of the placing rack, the limiting cylinder is installed in the booster grooves and located at the positions on the two sides of the limiting through hole, the sealing sheet is clamped in the booster grooves, the mounting spring is installed between the sealing sheet and the limiting cylinder, and the positioning rod is installed on one side of the sealing sheet and one end of the positioning rod is clamped in the limiting cylinder.

[0010] Further, the booster mechanism comprises a fixing block and a booster push rod, the fixing block is installed on the side wall of the positioning block, and the booster push rod is installed at the bottom of the fixing block.

[0011] Further, the bottom area of the booster push rod is the same as the upper surface area of the booster groove.

[0012] The utility model discloses the beneficial effect is:

[0013] 1, the utility model discloses a press mechanism can push the clamping mechanism and move down to clamping and positioning workpiece, and the clamping mechanism and press mechanism are not fixed connection state when not using, thus convenient quick disassembly or replacement of clamping mechanism.

[0014] 2, the utility model discloses secondly through the anti-shaking mechanism can be fixed from two sides to clamping block, thereby can prevent the clamping block from appearing to shake, thus can greatly improve stability. DRAWINGS

[0015] Figure 1 It is the structure view of the utility model;

[0016] Figure 2 It is the clamping mechanism structure view of the utility model;

[0017] Figure 3 It is the partial section view of the utility model;

[0018] Figure 4 It is the Figure 3 partial structure view of the utility model.

[0019] Marked as in the drawing: 1, placing rack; 2, press mechanism; 201, hydraulic cylinder; 202, press plate; 3, clamping mechanism; 301, positioning block; 302, clamping block; 4, placing groove; 5, limiting through hole; 6, clamping groove; 7, limiting assembly; 701, bearing frame; 702, limiting spring; 8, mounting frame; 9, anti-shaking mechanism; 901, sealing sheet; 902, positioning rod; 903, limiting cylinder; 904, mounting spring; 10, booster mechanism; 1001, fixing block; 1002, booster push rod; 11, booster groove. DETAILED DESCRIPTION

[0020] In the description of the utility model, it needs to explain, the term "front", "upper", "lower", "left", "right", "vertical", "horizontal" and so on indicate the orientation or positional relationship is based on the orientation or positional relationship shown in the drawing, only for the convenience of describing the utility model and simplifying the description, and is not indicating or implying that the device or element indicated must have a particular orientation, is constructed and operated in a particular orientation, therefore can not be understood as the limitation of the utility model.

[0021] In the description of the utility model, it needs to explain, unless another explicit provision and limitation, the term "installation", "connection", "connect" should be broad sense understanding, for example, can be fixed connection, also can be detachable connection, or integrally connected;Can be directly connected, also can be indirectly connected through the intermediate medium, can be two element internal communication.For the ordinary skilled person in the art, the above-mentioned terms can be understood according to the specific meaning of the utility model.

[0022] The following will be combined with the drawings of the utility model Figures 1-4 Further illustrate the utility model.

[0023] In order to solve the problems in the background art, the present application proposes the following technical scheme: a CNC tooling fixture.

[0024] In the specific technical solution, the placing rack 1 is provided with a plurality of placing grooves 4, and the bottom of each placing groove 4 is provided with a limiting opening 5. The plurality of placing grooves 4 and the plurality of clamping mechanisms 3 can conveniently clamp and position a plurality of workpieces at the same time. The clamping mechanism 3 comprises a positioning block 301 and a clamping block 302. The clamping block 302 is installed at the bottom of the positioning block 301. The positioning block 301 and the clamping block 302 are respectively clamped in the placing groove 4 and the limiting opening 5. The bottom of the clamping block 302 is provided with a clamping groove 6, which can clamp and fix the workpiece below. The placing groove 4 is provided with a limiting assembly 7 for limiting the positioning block 301. The limiting assembly 7 comprises a bearing frame 701 and a plurality of limiting springs 702. The bearing frame 701 is used to support the positioning block 301, and the bearing frame 701 is installed on the inner wall of the placing groove 4 through the limiting spring 702. The position of the clamping mechanism 3 can be limited by the limiting assembly 7. An installation rack 8 is installed above the placing rack 1. The pressing mechanism 2 comprises a hydraulic cylinder 201 and a pressing plate 202. The clamping mechanism 3 can be pressed by the pressing mechanism 2. The hydraulic cylinder 201 is installed above the installation rack 8. The pressing plate 202 is arranged below the installation rack 8 and located at the top of the clamping mechanism 3. The pressing plate 202 is installed at the output end of the hydraulic cylinder 201. The clamping mechanism 3 can be pushed downward by the pressing mechanism 2, so as to clamp and position the workpiece. The clamping mechanism 3 and the pressing mechanism 2 are not in a fixed connection state when not in use, so that the clamping mechanism 3 can be conveniently disassembled or replaced quickly.

[0025] Further, a through groove is formed in the positioning block 301 to reduce the weight of the clamping mechanism 3.

[0026] In a specific implementation, anti-shaking mechanisms 9 are arranged inside the two sides of the inner wall of the limiting opening 5 for fixing the clamping block 302 from both sides. The two sides of the positioning block 301 are provided with a pressure increasing mechanism 10 for controlling the movement of the anti-shaking mechanism 9.

[0027] Further, the anti-shaking mechanism 9 comprises a sealing sheet 901, a positioning rod 902, a limiting cylinder 903 and an installation spring 904. An L-shaped pressure increasing groove 11 is formed between the inner wall of the limiting opening 5 and the upper surface of the placing rack 1. The limiting cylinder 903 is installed in the pressure increasing groove 11 and located at the position of the two sides of the limiting opening 5. The sealing sheet 901 is clamped in the pressure increasing groove 11. The installation spring 904 is installed between the sealing sheet 901 and the limiting cylinder 903. The positioning rod 902 is installed on one side of the sealing sheet 901 and one end of the positioning rod 902 is clamped in the limiting cylinder 903. The pressure increasing mechanism 10 comprises a fixed block 1001 and a pressure increasing push rod 1002. The fixed block 1001 is installed on the side wall of the positioning block 301. The pressure increasing push rod 1002 is installed at the bottom of the fixed block 1001. The pressure increasing push rod 1002 corresponds to the pressure increasing groove 11.

[0028] Further, the bottom area of the pressurizing push rod 1002 is same as the upper surface area of the pressurizing groove 11, so that the pressurizing push rod 1002 can be normally pressurized after entering the pressurizing groove 11 and the anti-shaking mechanism 9 can be controlled to move to fix the clamping block 302.

[0029] In order for those skilled in the art to fully understand the technical solutions, the present application is made as follows:

[0030] In use, the workpiece is placed below the placing rack 1, then the clamping structure is placed into the placing groove 4, then the hydraulic cylinder 201 is started, the hydraulic cylinder 201 can push the pressing plate 202 downward, then the pressing plate 202 can push the positioning block 301 to move downward, the positioning block 301 can push the bearing frame 701 and extrude the limiting spring 702 to move downward, at the same time, the clamping block 302 can move downward and clamp and fix the workpiece through the clamping groove 6, after fixing, the hydraulic cylinder 201 is closed, the pressurizing push rod 1002 can enter the pressurizing groove 11 during the moving downward process, so that the pressure in the pressurizing groove 11 can be enhanced, under the action of the pressure, the sealing sheet 901 can be extruded, the sealing sheet 901 can extrude the mounting spring 904 and move, at the same time, the positioning rod 902 can move out of the limiting cylinder 903 and clamp and fix the two sides of the clamping block 302, so that the clamping mechanism 3 can be prevented from shaking.

[0031] The standard parts used in the utility model can be purchased from the market, the special-shaped parts can be ordered according to the description and the drawings, the specific connection mode of each part adopts the conventional means such as bolt, rivet and welding in the prior art, the machinery, parts and equipment adopt the conventional type in the prior art, the circuit connection adopts the conventional connection mode in the prior art, which will not be described in detail, and the contents not described in detail in the description belong to the prior art known by the person skilled in the art.

[0032] Although the embodiments of the utility model have been shown and described, the scope of the utility model is defined by the appended claims and their equivalents for those skilled in the art.

Claims

1. A CNC tooling fixture, characterized by, The utility model provides a kind of multiple clamping mechanism, including placing rack (1), pressing mechanism (2) and multiple clamping mechanism (3), multiple placing grooves (4) are set in placing rack (1) top, limiting port (5) is set in the bottom of placing groove (4), clamping mechanism (3) includes locating block (301) and clamping block (302), clamping block (302) is installed in the bottom of locating block (301), locating block (301) and clamping block (302) are respectively clamped in placing groove (4) and limiting port (5) inside, clamping groove (6) is set in the bottom of clamping block (302), limiting assembly (7) for limiting locating block (301) is provided in placing groove (4), mounting rack (8) is installed in the top of placing rack (1), pressing mechanism (2) includes hydraulic cylinder (201) and pressing plate (202), hydraulic cylinder (201) is installed in the top of mounting rack (8), pressing plate (202) is arranged below mounting rack (8) and is located in the top of clamping mechanism (3), and pressing plate (202) is installed in the output end of hydraulic cylinder (201).

2. A CNC tooling fixture according to claim 1, wherein, The limiting assembly (7) includes a bearing frame (701) and a plurality of limiting springs (702), the bearing frame (701) is used for supporting the locating block (301), and the bearing frame (701) is installed on the inner wall of the placing groove (4) by the limiting springs (702).

3. A CNC tooling fixture according to claim 2, wherein, A through groove is formed in the locating block (301) to reduce the weight of the clamping mechanism (3).

4. A CNC tooling fixture according to claim 1 or 2, wherein, The inner walls of the limiting port (5) are provided with anti-shaking mechanisms (9) on both sides for fixing the clamping block (302) from both sides.

5. A CNC tooling fixture according to claim 4, wherein, The anti-shaking mechanisms (9) include sealing sheets (901), positioning rods (902), limiting cylinders (903) and mounting springs (904), L-shaped pressure grooves (11) are formed between the inner walls of the limiting port (5) and the upper surface of the placing rack (1) on both sides, the limiting cylinders (903) are installed in the pressure grooves (11) and located on both sides of the limiting port (5), the sealing sheets (901) are clamped in the pressure grooves (11), the mounting springs (904) are installed between the sealing sheets (901) and the limiting cylinders (903), and the positioning rods (902) are installed on one side of the sealing sheets (901) and one end of which is clamped in the limiting cylinders (903).

6. A CNC tooling fixture according to claim 5, wherein, The pressure mechanism (10) includes a fixed block (1001) and a pressure push rod (1002), the fixed block (1001) is installed on the side wall of the locating block (301), and the pressure push rod (1002) is installed at the bottom of the fixed block (1001).

7. A CNC tooling fixture according to claim 6, wherein, The bottom area of the pressure push rod (1002) is the same as the upper surface area of the pressure groove (11).

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