A knife claw for a tool magazine of a CNC machine tool that is easy to install

Abstract

The utility model discloses a knife claw of a tool magazine of a numerical control machine tool that is easy to install, which includes a knife claw, a mounting device is arranged inside the knife claw, and the mounting device includes a separation unit and a clamping unit, the separation unit is arranged on the left side inside the knife claw, the clamping unit is arranged on the right side of the knife claw, a mounting groove is opened on the left side inside the knife claw, the telescopic rod is fixedly installed in the middle part of the knife claw, the first spring is sleeved on the outer surface of the telescopic rod, the bidirectional screw is installed on the left side inside the knife claw and located at the upper end of the first spring, the guide rod is fixedly installed on the left side inside the knife claw and located on the left side of the bidirectional screw, the moving block is threadedly connected to the outer surface of the bidirectional screw and located at the front and rear ends of the bidirectional screw, the clamping plate is fixedly installed on the right side of the moving block, and a fixing device is arranged on the right side of the clamping block. The device solves the problem that when the knife claw is currently installed, a plurality of bolts are used for fixing, which is inconvenient for the installation and disassembly of the knife claw.

Description

Technical Field

[0001] The utility model belongs to the technical direction of numerical control machine tools, and in particular relates to a tool claw of a tool magazine of a numerical control machine tool which is easy to install. Background Art

[0002] Most CNC machine tools now use an automatic tool change system with a tool magazine. The tool magazines mainly include linear tool magazines, chain tool magazines, and disc tool magazines. When using an automatic tool change system with a tool magazine, you need to use a tool claw to select the required tool and then install it on the spindle. The tool magazine generally includes a tool disk and a tool claw on the tool disk. The tool claw is mainly used to replace the spindle tool during the machining process.

[0003] The knife claw in the prior art usually includes a driving component, a clamping component for fixing the tool, and a connecting component for connecting the knife claw and the cutter disc. During the processing, when the knife claw is close to the tool handle, the driving device controls the knife claw to open a certain angle to allow the tool to enter the knife claw; when the tool enters the knife claw, the driving device controls the knife claw to close to clamp the tool. In this way, the knife claw needs a driving device to control the knife claw to grab the tool, and the installation of the driving device requires a certain space to be reserved for corresponding wiring, which makes the structure of the knife claw more complicated and the manufacturing cost relatively high.

[0004] As disclosed in Chinese patent CN207788379U, the tool claw of a CNC machine tool magazine and the CNC machine tool that are easy to install are arranged with a telescopic assembly on the inner side behind the left clamp and the right clamp, one end of the telescopic assembly is connected to the left clamp, and the other end is connected to the right clamp, so that the left clamp and the right clamp can complete the replacement of the spindle tool under the action of the telescopic assembly. The replacement of the spindle tool is realized by replacing the driving assembly with a telescopic assembly, and the structure is simple and the manufacturing cost is relatively low.

[0005] However, when the device is installed on the knife claw, multiple bolts are used for fixing, which is inconvenient for installing and disassembling the knife claw.

[0006] For this reason, we urgently need to provide a kind of tool claw of the tool magazine of numerical control machine tool that is easy to install. Utility Model Content

[0007] The utility model aims to provide a tool claw of a tool magazine of a numerically controlled machine tool which is easy to install in view of the existing device, so as to solve the problems raised in the above-mentioned background technology.

[0008] In order to solve the above technical problems, the utility model provides the following technical solutions: a tool claw of a tool magazine of a CNC machine tool which is easy to install, comprising a tool claw, wherein a mounting device is arranged inside the tool claw.

[0009] The mounting device comprises a separation unit and a clamping unit, wherein the separation unit is arranged on the left side inside the knife claw, and the clamping unit is arranged on the right side of the knife claw.

[0010] The separation unit includes a telescopic rod, a first spring, a bidirectional screw rod, a guide rod, a moving block and a clamping plate. A mounting groove is opened on the left side inside the knife claw, the telescopic rod is fixedly installed in the middle part of the knife claw, the first spring is sleeved on the outer surface of the telescopic rod, the bidirectional screw rod is installed on the left side inside the knife claw and is located at the upper end of the first spring, the guide rod is fixedly installed on the left side inside the knife claw and is located on the left side of the bidirectional screw rod, the moving block is threadedly connected to the outer surface of the bidirectional screw rod and is located at the front and rear ends of the bidirectional screw rod, and the clamping plate is fixedly installed on the right side of the moving block.

[0011] The utility model further describes that the clamping unit includes a clamping block, a fixed rod, a stopper, a clamping leg and a second spring, the clamping block is arranged on the right side of the knife claw, a placement groove is opened on the left side inside the clamping block, the fixed rod is fixedly installed at the front and rear ends of the right side inside the clamping block, the stopper is fixedly installed in the middle part of the knife claw and the front and rear ends are fixedly connected to the fixed rod, the clamping leg is slidably connected to the outside of the fixed rod and is located at the front and rear sides of the stopper, and the second spring is sleeved on the outer surface of the fixed rod and is located between the stopper and the clamping leg.

[0012] The utility model further describes that a fixing device is arranged on the right side of the clamping block, and the fixing device includes an upper metal plate, a lower metal plate, a bolt and a nut. The upper metal plate is fixedly installed on the upper end of the right side of the clamping block, and the lower metal plate is fixedly installed on the lower end of the right side of the clamping block. The bolt is threadedly connected to the upper metal plate and the inside of the lower metal plate, and the nut is threadedly connected to the lower end of the bolt.

[0013] The utility model further describes that a protrusion is provided on the right side of the telescopic rod, and the diameter of the protrusion is larger than the outer diameter of the first spring. The telescopic rod is extended and retracted by squeezing the first spring by the protrusion. A through groove equal to the size of the guide rod is opened on the left side inside the moving block. The guide rod passes through the through groove. The two moving blocks are moved along the guide rod by rotating the bidirectional screw rod, so that the splint pushes the clamping leg out of the knife claw, which is convenient for disassembly of the knife claw.

[0014] The utility model further describes that the left side of the clamping leg is an inclined surface, and a mounting hole is opened on the right side of the clamping leg. The fixing rod passes through the mounting hole, so that the clamping leg moves along the fixing rod and enters the knife claw to fix the knife claw.

[0015] Compared with the prior art, the beneficial effects achieved by the utility model are: the utility model,

[0016] (1) The installation device is provided to facilitate installation of the knife claw on the clamping block, making installation and removal of the knife claw more convenient, thus solving the problem in the background art that when installing the knife claw, multiple bolts are used for fixing, which makes installation and removal of the knife claw inconvenient;

[0017] (2) The fixing device is provided to facilitate fixing the fixing block on the turret, thereby facilitating installation and removal of the knife claw. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0019] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0020] Figure 2 This is a schematic diagram of the separation unit structure of the utility model;

[0021] Figure 3 This is a schematic diagram of the structure of the clamping unit of the utility model;

[0022] Figure 4 This is a schematic diagram of the structure of the installation device of the utility model;

[0023] Figure 5 This is a schematic diagram of the structure of the fixing device of the utility model.

[0024] In the figure: 1, knife claw; 201, telescopic rod; 202, first spring; 203, bidirectional screw rod; 204, guide rod; 205, moving block; 206, clamping plate; 207, clamping block; 208, fixing rod; 209, stopper; 210, clamping leg; 211, second spring; 301, upper metal plate; 302, lower metal plate; 303, bolt; 304, nut. DETAILED DESCRIPTION

[0025] The following is a further non-limiting detailed description of the technical solution of the utility model in conjunction with the preferred embodiments and the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0026] See also Figure 1-5 , the utility model provides a technical solution: Embodiment 1:

[0027] A tool claw of a tool magazine of a numerical control machine tool which is easy to install comprises a tool claw 1, wherein a mounting device is arranged inside the tool claw 1.

[0028] The mounting device comprises a separation unit and a clamping unit. The separation unit is arranged on the left side inside the knife claw 1 , and the clamping unit is arranged on the right side of the knife claw 1 .

[0029] The separation unit includes a telescopic rod 201, a first spring 202, a bidirectional screw rod 203, a guide rod 204, a moving block 205 and a clamping plate 206. A mounting groove is provided on the left side of the inside of the knife claw 1. The telescopic rod 201 is fixedly installed in the middle of the inside of the knife claw 1. A convex block is provided on the right side of the telescopic rod 201, and the diameter of the convex block is larger than the outer diameter of the first spring 202. The telescopic rod 201 is extended and retracted by squeezing the first spring 202 by the convex block. The first spring 202 is sleeved on the outer surface of the telescopic rod 201. The bidirectional screw rod 203 is installed on the left side of the inside of the knife claw 1 and is located at the upper end of the first spring 202. The guide rod 204 is fixedly installed on the left side of the inside of the knife claw 1 and is located on the left side of the two-way screw rod 203. The moving block 205 is threadedly connected to the outer surface of the two-way screw rod 203 and is located at the front and rear ends of the two-way screw rod 203. A through groove equal to the size of the guide rod 204 is opened on the left side inside the moving block 205. The guide rod 204 passes through the through groove. By rotating the two-way screw rod 203, the two moving blocks 205 move along the guide rod 204, so that the splint 206 pushes the clamping leg 210 out of the knife claw 1, which is convenient for the disassembly of the knife claw 1. The splint 206 is fixedly installed on the right side of the moving block 205.

[0030] The clamping unit includes a clamping block 207, a fixing rod 208, a stopper 209, a clamping leg 210 and a second spring 211. The clamping block 207 is arranged on the right side of the knife claw 1. A placement slot is provided on the left side of the clamping block 207. The fixing rod 208 is fixedly installed at the front and rear ends of the right side of the clamping block 207. The stopper 209 is fixedly installed in the middle of the knife claw 1 and the front and rear ends are fixedly connected to the fixing rod 208. The clamping leg 210 is slidably connected to the outside of the fixing rod 208 and is located at the front and rear sides of the stopper 209. The left side of the clamping leg 210 is an inclined surface, and a mounting hole is provided on the right side of the clamping leg 210. The fixing rod 209 is fixedly installed in the middle of the knife claw 1 and the front and rear ends are fixedly connected to the fixing rod 208. The clamping leg 210 is slidably connected to the outside of the fixing rod 208 and is located at the front and rear sides of the stopper 209. The left side of the clamping leg 210 is an inclined surface, and a mounting hole is provided on the right side of the clamping leg 210. 208 passes through the mounting hole, so that the clamping leg 210 moves along the fixing rod 208, and contacts the inner groove on the right side of the knife claw 1 through the oblique edges on both sides of the clamping leg 210, pushing the clamping leg 210 to squeeze the second spring 211, so that the clamping leg 210 moves along the fixing rod 208, so that the clamping leg 210 enters the knife claw 1 to fix the knife claw 1, and the second spring 211 is sleeved on the outer surface of the fixing rod 208 and is located between the stopper 209 and the clamping leg 210. When the clamping leg 210 enters the knife claw 1, the second spring 211 stretches the clamping leg 210 outward, thereby clamping it with the inner wall of the knife claw 1. Embodiment 2:

[0031] On the basis of Example 1: a fixing device is provided on the right side of the block 207, the fixing device includes an upper metal plate 301, a lower metal plate 302, a bolt 303 and a nut 304, the upper metal plate 301 is fixedly installed at the upper end of the right side of the block 207, the lower metal plate 302 is fixedly installed at the lower end of the right side of the block 207, the bolt 303 is threadedly connected to the upper metal plate 301 and the lower metal plate 302, and the nut 304 is threadedly connected to the lower end of the bolt 303.

[0032] When in use, the clamping block 207 is installed at the desired position by means of the bolt 303 penetrating the upper metal plate 301 and the lower metal plate 302. When the knife claw 1 needs to be installed, the clamping leg 210 is inserted into the installation groove provided in the knife claw 1, and the clamping leg 210 is extended outward in cooperation with the second spring 211, so as to be clamped with the inner wall of the knife claw 1. At the same time, the clamping leg 210 pushes the telescopic rod 201 to squeeze the first spring 202 during the process of extending the clamping leg 210 into the interior of the knife claw 1, so that the first spring 202 applies a thrust to the clamping leg 210, so that the clamping leg 210 and the knife claw 1 are tightly matched. When the knife claw 1 needs to be disassembled, the two moving blocks 205 are moved along the guide rod 204 by rotating the bidirectional screw rod 203, so that the clamping plate 206 pushes the clamping leg 210 to move inward, and the knife claw 1 is pushed out in cooperation with the first spring 202, thereby facilitating the installation and disassembly of the knife claw 1.

[0033] In the description of the present invention, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as a limitation on the present invention.

[0034] Finally, it should be pointed out that the above embodiments are only used to illustrate the technical solutions of the utility model, rather than to limit them. Although the utility model is described in detail with reference to the above embodiments, a person skilled in the art should understand that the technical solutions described in the above embodiments can still be modified, or some of the technical features can be replaced by equivalents, and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the utility model.

Claims

1. A tool claw of a tool magazine of a CNC machine tool that is easy to install, comprising a tool claw (1), characterized in that: A mounting device is provided inside the knife claw (1); The mounting device comprises a separation unit and a clamping unit, the separation unit being arranged on the left side inside the knife claw (1), and the clamping unit being arranged on the right side of the knife claw (1); The separation unit comprises a telescopic rod (201), a first spring (202), a bidirectional screw rod (203), a guide rod (204), a moving block (205) and a clamping plate (206); a mounting groove is provided on the left side of the interior of the knife claw (1); the telescopic rod (201) is fixedly mounted in the middle of the interior of the knife claw (1); the first spring (202) is sleeved on the outer surface of the telescopic rod (201); the bidirectional screw rod (203) is mounted on the left side of the interior of the knife claw (1) and is located at the upper end of the first spring (202); the guide rod (204) is fixedly mounted on the left side of the interior of the knife claw (1) and is located on the left side of the bidirectional screw rod (203); the moving block (205) is threadedly connected to the outer surface of the bidirectional screw rod (203) and is located at the front and rear ends of the bidirectional screw rod (203); and the clamping plate (206) is fixedly mounted on the right side of the moving block (205).

2. The tool claw of a CNC machine tool magazine that is easy to install according to claim 1 is characterized in that: The clamping unit comprises a clamping block (207), a fixing rod (208), a stopper (209), a clamping leg (210) and a second spring (211); the clamping block (207) is arranged on the right side of the knife claw (1); a placement slot is provided on the left side of the inside of the clamping block (207); the fixing rod (208) is fixedly mounted on the front and rear ends of the right side of the inside of the clamping block (207); the stopper (209) is fixedly mounted on the middle part of the inside of the knife claw (1) and the front and rear ends are fixedly connected to the fixing rod (208); the clamping leg (210) is slidably connected to the outside of the fixing rod (208) and is located on the front and rear sides of the stopper (209); and the second spring (211) is sleeved on the outer surface of the fixing rod (208) and is located between the stopper (209) and the clamping leg (210).

3. The tool claw of a CNC machine tool magazine that is easy to install according to claim 2 is characterized in that: A fixing device is provided on the right side of the clamping block (207), the fixing device comprising an upper metal plate (301), a lower metal plate (302), a bolt (303) and a nut (304); the upper metal plate (301) is fixedly mounted on the upper end of the right side of the clamping block (207); the lower metal plate (302) is fixedly mounted on the lower end of the right side of the clamping block (207); the bolt (303) is threadedly connected to the inside of the upper metal plate (301) and the lower metal plate (302); and the nut (304) is threadedly connected to the lower end of the bolt (303).

4. The tool claw of a CNC machine tool magazine that is easy to install according to claim 1 is characterized in that: The telescopic rod (201) has a convex block on the right side, and the diameter of the convex block is larger than the outer diameter of the first spring (202). The movable block (205) has a through slot on the left side thereof, which is equal in size to the guide rod (204), and the guide rod (204) passes through the through slot.

5. The tool claw of a CNC machine tool magazine that is easy to install according to claim 2, characterized in that: The left side of the clamping leg (210) is an inclined surface, and the right side of the clamping leg (210) is provided with a mounting hole, and the fixing rod (208) passes through the mounting hole.

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