Fixture for numerical control machine tool and numerical control machine tool

Abstract

The utility model provides a numerical control machine tool clamp and a numerical control machine tool, and relates to the field of numerical control equipment, the numerical control machine tool clamp and the numerical control machine tool comprise a clamp chuck, an adjusting assembly and a plurality of driven limiting assemblies, the positions of the driven limiting assemblies can be flexibly adjusted through the adjusting assembly to adapt to workpieces of different sizes, and the universality is improved. The attaching component is composed of a rotating shaft, an attaching block and an auxiliary spring and can adapt to the surface of a workpiece and enhance the clamping stability, the attaching component can adapt to the surface shape of the workpiece, the workpiece is fixed more firmly, the clamping stability is improved, and the machining precision is guaranteed; and the surface of the workpiece is protected from being scratched while the friction force is increased, so that more efficient and accurate machining is realized, the machining quality and the production efficiency are improved, and the rejection rate of the workpiece is also reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to numerical control equipment field especially, relates to a kind of fixture and numerical control machine tool for numerical control machine tool. BACKGROUND

[0002] The relationship between numerical control machine tool (CNC Machine Tool) and fixture (Fixture) is inseparable, they jointly act to realize efficient, accurate part processing In numerical control machine tool processing, fixture positioning and clamping workpiece are crucial, its fixture plays a crucial role in machining, it is not only used to fix workpiece, ensure that it remains stable during processing, but also can help positioning workpiece, make it be in correct processing position relative to tool and machine tool, it is the key factor to ensure that final product meets design requirements;

[0003] But existing numerical control machine tool fixture exists only applicable to specific shape and size workpiece, it is difficult to meet the diversification processing problem, make its fixture face the universality of different processing part size, replace different fixture clamping and disassembly process each time when workpiece size processing is tedious, consume a lot of time and manpower cost, make numerical control machine tool production efficiency reduce, simultaneously, uneven distribution of existing numerical control machine tool fixture clamping force, easily make workpiece displacement or deformation when processing, especially in thin-walled piece, special-shaped part processing more remarkable, it seriously affects the machining accuracy of numerical control machine tool, makes workpiece rejection rate high.

[0004] Therefore, it is necessary to provide a new numerical control machine tool fixture and numerical control machine tool to solve the above technical problems. INVENTION CONTENTS

[0005] To solve the above technical problems, the utility model provides a kind of numerical control machine tool fixture and numerical control machine tool.

[0006] The numerical control machine tool fixture and numerical control machine tool provided by the utility model include: fixture chuck and multiple driven limiting components, multiple driven limiting components are slid in the inside of the fixture chuck through adjusting assembly, and multiple driven limiting components are equally angularly located in the inside of the fixture chuck, and adjusting assembly is located in the inside of the fixture chuck;

[0007] The driven limiting component includes driven clamping body and two groups of adhesion parts, one end of the driven clamping body penetrates the surface of the fixture chuck and extends to the inside of the fixture chuck and the side surface of the adjusting assembly is adhesion, the side surface of the driven clamping body is provided with two adhesion grooves, and two ends of two groups of adhesion parts are fixedly connected with the inner wall of the adhesion groove.

[0008] Preferably, the fitting component comprises a rotating shaft, a fitting block and two booster springs, the rotating shaft is fixedly connected with the inner side wall of the fitting groove on both sides, the fitting block is rotatably sleeved on the surface of the rotating shaft, the bottom ends of the two booster springs are fixedly connected with the inner bottom end of the fitting groove, and the top ends of the two booster springs are fitted with the bottom end of the fitting block.

[0009] Preferably, the adjusting assembly comprises an adjusting disc and a plurality of adjusting gears, one end of the driven clamping body extending into the inside of the clamp chuck is engaged with the top end surface of the adjusting disc, and a plurality of adjusting gears extend through the outer surface of the clamp chuck and into the inside of the clamp chuck and are engaged with the bottom end of the adjusting disc.

[0010] Preferably, the top end of each of the plurality of fitting blocks is fixedly provided with a protective clamping strip.

[0011] Preferably, one side of each of the plurality of adjusting gears is provided with a square adjusting hole for adjustment.

[0012] The second aspect of the utility model provides a numerical control machine tool, including machine tool body, numerical control device and numerical control machine tool clamp, one side of clamp chuck is fixedly connected with one side in the inside of machine tool body through a plurality of connecting bolts, one side of numerical control device is installed on one side of the outside of machine tool body and is fixedly connected.

[0013] Compared with the related art, the numerical control machine tool clamp and the numerical control machine tool have the following beneficial effects:

[0014] The adjusting assembly can flexibly adjust the position of the driven limiting assembly, adapt to workpieces of different sizes, improve universality, reduce cost, improve efficiency, the fitting component is composed of a rotating shaft, a fitting block and a booster spring, can adapt to the surface of the workpiece, enhance the clamping stability, the design of the fitting component can adapt to the shape of the surface of the workpiece, fix the workpiece more firmly, improve the clamping stability and ensure the machining precision, the protective clamping strip is made of rubber and other materials, which increases the friction and protects the surface of the workpiece from being scratched, thereby realizing more efficient and accurate machining, improving the machining quality and production efficiency, and reducing the scrap rate of workpieces. BRIEF DESCRIPTION OF DRAWINGS

[0015] Fig. 1 is a schematic diagram of the overall structure of the numerical control machine tool clamp and the numerical control machine tool provided by the utility model;

[0016] Fig. 2 is a schematic diagram of the overall structure of the numerical control machine tool clamp provided by the utility model;

[0017] Fig. 3 is a schematic diagram of the split structure of the numerical control machine tool clamp provided by the utility model;

[0018] Figure 4 is the split structure schematic diagram of the driven limiting assembly provided by the utility model;

[0019] Figure 5 is the partial section schematic diagram of the driven limiting assembly provided by the utility model.

[0020] Marked number in drawing: 1, clamp chuck; 2, driven clamping body; 3, fitting groove; 4, rotating shaft; 5, fitting block; 6, power spring; 7, adjusting disc; 8, adjusting gear; 9, protective clamping strip; 10, square adjusting hole; 11, machine tool body; 12, numerical control device; 13, connecting bolt. DETAILED DESCRIPTION

[0021] The utility model will be further explained in connection with drawing and embodiment.

[0022] Please combine with reference to Figure 1, Figure 2, Figure 3, Figure 4 and Figure 5, wherein, Figure 1 is the overall structure schematic diagram of the utility model provides a kind of numerical control machine tool clamp and numerical control machine tool;Figure 2 is the overall structure schematic diagram of the utility model provides a kind of numerical control machine tool clamp;Figure 3 is the split structure schematic diagram of the utility model provides a kind of numerical control machine tool clamp;Figure 4 is the split structure schematic diagram of the driven limiting assembly provided by the utility model;Figure 5 is the partial section schematic diagram of the driven limiting assembly provided by the utility model.

[0023] In the specific implementation process, as shown in Figure 1-5, the utility model provides a kind of numerical control machine tool clamp and numerical control machine tool, including clamp chuck 1 and multiple driven limiting assemblies, multiple driven limiting assemblies are slid in the interior of clamp chuck 1 by adjusting assembly, and multiple driven limiting assemblies are equiangularly located in the interior of clamp chuck 1, and adjusting assembly is located in the interior of clamp chuck 1.

[0024] Driven limiting assembly includes driven clamping body 2 and two groups of fitting components, driven clamping body 2 one end penetrates the surface of clamp chuck 1 and extends to the interior of clamp chuck 1 and is fitted with the one side surface of adjusting assembly, and two fitting grooves 3 are formed in the one side surface of driven clamping body 2, and the two ends of two groups of fitting components are fixedly connected with the inner wall of fitting groove 3 This design makes that driven limiting assembly can move according to the action of adjusting assembly, to realize reliable clamping to workpiece.

[0025] The fitting component comprises a rotating shaft 4, a fitting block 5 and two booster springs 6. The rotating shaft 4 is fixedly connected with the inner side wall of the fitting groove 3 on both sides. The fitting block 5 is rotatably sleeved on the surface of the rotating shaft 4. The bottom end of each of the two booster springs 6 is fixedly connected with the bottom end inside the fitting groove 3, and the top end of each of the two booster springs 6 is in abutment with the bottom end of the fitting block 5.

[0026] In one specific embodiment, the booster spring 6 is arranged so that the fitting block 5 can adapt to the surface shape of the workpiece within a certain range. When the fitting block 5 is in contact with the surface of the workpiece, the booster spring 6 will elastically deform according to the contact condition, thereby ensuring the close fitting of the fitting block 5 with the surface of the workpiece and improving the stability of clamping.

[0027] The adjusting assembly comprises an adjusting disc 7 and a plurality of adjusting gears 8. One end of the driven clamping body 2 extending into the inside of the chuck is engaged with the top surface of the adjusting disc 7, and the plurality of adjusting gears 8 penetrate through the outer surface of the chuck and extend into the inside of the chuck and are engaged with the bottom end of the adjusting disc 7.

[0028] It should be noted that one side of each of the plurality of adjusting gears 8 is provided with a square adjusting hole 10 for adjustment. The square adjusting hole 10 facilitates the rotation of the adjusting gear 8 by using a corresponding tool (such as a square wrench), making the adjustment process more convenient and accurate. The top end of the adjusting disc 7 is provided with an open spiral groove, thereby driving the driven clamping body 2 to adjust the clamping position. The bottom end of the adjusting disc 7 is provided with a ring-shaped rack. In addition, the adjusting gear 8 is a bevel gear.

[0029] In one specific embodiment, by rotating the adjusting gear 8, the adjusting disc 7 can be driven to rotate, thereby making the driven clamping body 2 slide along the inside of the chuck 1, and the position of the driven limiting assembly is adjusted to adapt to workpieces of different sizes.

[0030] The top end of each of the plurality of fitting blocks 5 is fixedly provided with a protective clamping strip 9. The protective clamping strip 9 is usually made of soft material with certain friction, such as rubber, etc. Its role is to protect the surface of the workpiece from being scratched when clamping the workpiece, and to increase the friction with the surface of the workpiece, thereby further improving the reliability of clamping.

[0031] In the implementation process, as shown in Figure 1, the utility model discloses a second aspect provides a kind of numerical control machine tool, it is applicable to a kind of numerical control machine tool fixture, including machine tool body 11, numerical control device 12 and above-mentioned numerical control machine tool fixture, fixture chuck 1 side is fixedly connected with the inside one side of machine tool body 11 by multiple connecting bolts 13, and numerical control device 12 side is installed on the outside one side of machine tool body 11 and is fixedly connected.

[0032] It should be noted that machine tool body 11 provides stable support structure for the entire numerical control machine tool, each component is installed on machine tool body 11, which ensures the overall stability of the machine tool, and numerical control device 12 is the control core of the numerical control machine tool, which can accurately control various actions of the machine tool according to the pre-written program, including adjustment of the fixture and execution of the machining process, and further organically combines the numerical control machine tool fixture with the machine tool body 11 and the numerical control device 12, so that the numerical control machine tool can more efficiently and accurately complete various machining tasks.

[0033] The working principle of the utility model provided is as follows:

[0034] First, according to the size of the workpiece to be machined, prepare the appropriate square wrench and other tools, and the operator inserts the square wrench into the square adjusting hole 10 of the adjusting gear 8, rotates the adjusting gear 8, drives the adjusting disc 7 to rotate in the fixture chuck 1, and the driven clamping body 2 is engaged with the top end of the adjusting disc 7, so that the driven clamping body 2 slides along the inside of the fixture chuck 1, thereby adjusting the position of each driven limiting assembly to adapt to the workpiece. At this time, the driven limiting assembly is close to the workpiece, the abutting block 5 contacts the surface of the workpiece, and follows the shape of the workpiece surface to rotate along the rotating shaft 4 to adapt to the shape of the workpiece. At this time, the power spring 6 will be elastically deformed by the change of the abutting block 5, so that the clamping strip is in close contact with the workpiece. Then, the numerical control device 12 controls the fixture adjustment and machine tool machining action according to the program, such as tool feed speed, cutting depth, etc., to complete efficient and accurate machining.

[0035] The above is only an embodiment of the utility model, and does not limit the patent range of the utility model, and any equivalent structure or equivalent process transformation using the contents of the utility model specification and drawings, or direct or indirect application in other related technical fields, are also included in the patent protection range of the utility model.

Claims

1. A fixture for a numerically controlled machine tool, characterized by, Include: Clamp chuck (1) and a plurality of driven limit components, a plurality of the driven limit components are slid in the clamp chuck (1) through the adjustment assembly, and a plurality of the driven limit components are equiangularly located in the clamp chuck (1), the adjustment assembly is located in the clamp chuck (1); The driven limit component includes a driven clamping body (2) and two sets of fitting components, one end of the driven clamping body (2) penetrates the surface of the clamp chuck (1) and extends into the clamp chuck (1) and is attached to one side of the adjustment assembly, and the side surface of the driven clamping body (2) is provided with two fitting grooves (3), and the two ends of the two sets of fitting components are respectively fixedly connected with the inner side wall of the fitting groove (3).

2. The fixture for a numerical control machine tool according to claim 1, characterized in that, The fitting component includes a rotating shaft (4), a fitting block (5) and two booster springs (6), the rotating shaft (4) is fixedly connected with the inner side wall of the fitting groove (3) on both sides, the fitting block (5) is rotatably sleeved on the surface of the rotating shaft (4), and the bottom ends of the two booster springs (6) are fixedly connected with the bottom end of the fitting groove (3), and the top ends of the two booster springs (6) are attached to the bottom end of the fitting block (5).

3. The fixture for a numerically controlled machine tool according to claim 2, characterized in that, The adjustment assembly includes an adjustment disc (7) and a plurality of adjustment gears (8), one end of the driven clamping body (2) extending into the clamp chuck (1) is engaged with the top surface of the adjustment disc (7), and a plurality of adjustment gears (8) penetrate the outer surface of the clamp chuck (1) and extend into the clamp chuck (1) and are engaged with the bottom end of the adjustment disc (7).

4. The fixture for a numerically controlled machine tool according to claim 3, characterized in that, A plurality of the fitting block (5) top is fixedly provided with a protective clamping strip (9).

5. The fixture for a numerically controlled machine tool according to claim 4, characterized in that, A plurality of the adjustment gear (8) side is provided with a square adjustment hole (10) for adjustment.

6. A numerically controlled machine tool, characterized by comprising: Include machine tool body (11), numerical control device (12) and the clamp of any one of claims 1-5 for numerical control machine tool, one side of the clamp chuck (1) is fixedly connected with one side of the machine tool body (11) through a plurality of connecting bolts (13), and one side of the numerical control device (12) is fixedly connected with one side of the machine tool body (11) and is installed on the outside of the machine tool body (11).

Images