Cutter clamping mechanism of numerical control machining center

Abstract

The utility model belongs to the technical field of machining center cutters, and particularly relates to a numerical control machining center cutter clamping mechanism which comprises a fixing plate, and a square plate is fixedly connected to the surface of the fixing plate. The side wall of the square plate is fixedly connected with an air cylinder; the output end of the air cylinder is fixedly connected with a round rod. The round rod penetrates through the square plate and is in sliding connection with the square plate; the end part of the round rod is fixedly connected with a double-sided toothed plate; the side wall of the fixing plate is rotationally connected with a pair of gears. The double-sided toothed plate and the gear are correspondingly arranged and are in transmission fit; a clamping plate is fixedly connected to the middle of the gear; a placing groove is formed in the fixing plate; when a round rod is used for driving a double-faced toothed plate to move, when a clamping plate moves, teeth on the two sides are clamped with each other, so that a gear rotates synchronously, and therefore the clamping plate moves synchronously when rotating, and a cutter is clamped by the clamping plate; and when the cutter needs to be removed, the round rod pushes the double-sided toothed plate to move towards the placing groove, so that the clamping plates can be opened towards the two sides, and clamping of the cutter is removed.

Description

TECHNICAL FIELD

[0001] The utility model relates to machining center cutter technical field, specifically a numerical control machining center cutter clamping mechanism. BACKGROUND

[0002] Numerical control machining center is by mechanical equipment and numerical control system composition is suitable for machining complex spare high efficiency automation machine tool of part, numerical control machining center is one of the world's highest output, the most widely used numerical control machine tool.

[0003] Numerical control machining center is widely used in aerospace, automobile manufacturing, mould manufacturing and numerous modern manufacturing industry fields, and is one of important signs of measuring manufacturing level of a country or region, and its emergence greatly promotes manufacturing industry to develop in the direction of automation, intelligentization and precision.

[0004] The traditional numerical control machining center cutter is detachably fixed on the cutter seat through bolts, and thus a plurality of bolts need to be tightened when the cutter is fixed, leading to that it is time-consuming when the cutter is operated.

[0005] Therefore, aiming at the above problems, a numerical control machining center cutter clamping mechanism is provided. INVENTION CONTENTS

[0006] In order to make up for the deficiencies of the prior art, at least one technical problem proposed in the background art is solved.

[0007] The technical scheme adopted by the utility model to solve its technical problems is: the numerical control machining center cutter clamping mechanism, including the fixed plate, the fixed plate surface is fixedly connected with the square board, the square board side wall is fixedly connected with the air cylinder, the air cylinder output end is fixedly connected with the round rod, the round rod is set through on the square board and is connected with sliding, the round rod end is fixedly connected with the double-sided toothed plate, the fixed plate side wall is rotatably connected with a pair of gears, the double-sided toothed plate and the gear are correspondingly arranged and are transmission matched, the gear middle part is fixedly connected with the clamping plate, the fixed plate interior is equipped with the placing groove, the placing groove is located above the double-sided toothed plate, when the double-sided toothed plate is moved by the round rod, the gear can be synchronously rotated by the mutual engagement of the teeth on both sides when the clamping plate moves, so that the clamping plate is synchronously moved when rotating, and the cutter is clamped, when the cutter needs to be released, the double-sided toothed plate is moved to the placing groove by the round rod, and the clamping plate is opened to both sides, so that the clamping of the cutter is released.

[0008] Preferably, the end of the clamping plate is provided with a rotating groove; a rotating plate is rotatably connected to the middle of the rotating groove; the rotating plate and the rotating groove are connected through a torsional spring; by adding the rotating plate, the contact area of the clamping plate and the rotating groove can be increased when the tool is clamped, so that the sliding during clamping is reduced, thereby increasing the stability during clamping.

[0009] Preferably, the inner wall of the placing groove is fixedly connected with a plurality of spring telescopic rods; the end of the spring telescopic rod is fixedly connected with a push plate; by adding the push plate, the tool can be preliminarily clamped by the compression of the spring telescopic rod when the tool enters the inside of the placing groove, thereby assisting the clamping and fixing of the tool by the clamping plate, thereby increasing the convenience of fixing the tool.

[0010] Preferably, the bottom of the placing groove is rotatably connected with a supporting plate; the end of the supporting plate is provided as an inclined surface; the supporting plate and the placing groove are connected through a torsional spring; by adding the supporting plate, the tool can be pushed into the inside of the placing groove after being supported by the supporting plate, thereby increasing the accuracy of inserting the tool into the placing groove, thereby increasing the installation of the tool.

[0011] Preferably, the inside of the placing groove is rotatably connected with a supporting telescopic rod; the supporting telescopic rod and the supporting plate are slidingly connected; when the supporting plate rotates, the supporting telescopic rod will contract and rotate at the same time, thereby cooperating with the supporting plate to contract into the inside of the placing groove; when the clamping plate leaves, the supporting telescopic rod will expand with the rotation of the supporting plate to increase the support of the supporting plate, thereby making the support of the tool more stable.

[0012] Preferably, a plurality of rubber pads are fixedly connected to the surface of the rotating plate; the rubber pads are provided in an arc shape; by adding the rubber pads, the contact with the tool can be increased when the rotating plate contacts the tool through the deformation of the rubber pads, thereby increasing the friction when clamping the tool, thereby increasing the stability when clamping the tool.

[0013] The utility model discloses the beneficial effect lies in:

[0014] 1. The utility model discloses a numerical control machining center tool clamping mechanism, through using the round rod to drive the double-sided toothed plate to move can when the clamping plate moves through the mutual engagement of both sides tooth to rotate the gear synchronously, thereby when rotating the clamping plate, synchronous movement is carried out, makes it clamp the tool, when needing to release the tool, pushes the double-sided toothed plate to the placing groove and moves with the round rod, can open the clamping plate to both sides, thereby releasing the clamping of the tool.

[0015] 2. The numerical control machining center tool clamping mechanism, through the increase rotating plate can be clamped to the tool, through the force of the clamping plate moves to adjust the rotating plate, thereby clamping to the tool increases the contact area of the clamping plate and rotating groove, so that the clamping to the tool reduces the sliding and increases the stability when clamping. BRIEF DESCRIPTION OF DRAWINGS

[0016] In order to more clearly illustrate the technical scheme in the embodiments of the present application or the prior art, the drawings needed to be used in the embodiments or the prior art description will be briefly introduced below, and obviously, the drawings in the following description are only some embodiments of the present application, and for those skilled in the art, other drawings can also be obtained without creative labor on the basis of these drawings.

[0017] Figure 1 It is a schematic diagram of the main body of the present application;

[0018] Figure 2 It is a schematic diagram of the structure of the clamping plate in the present application;

[0019] Figure 3 It is a schematic diagram of the structure of the gear in the present application;

[0020] Figure 4 It is a schematic diagram of the structure of the placing groove in the present application;

[0021] Figure 5 It is a schematic diagram of the structure of the supporting plate in the present application.

[0022] In the figure: 1, fixed plate; 11, square plate; 12, air cylinder; 13, round rod; 14, double-sided tooth plate; 15, gear; 16, clamping plate; 17, placing groove; 2, rotating groove; 21, rotating plate; 3, spring telescopic rod; 31, push plate; 4, supporting plate; 5, supporting telescopic rod; 6, rubber pad. DETAILED DESCRIPTION

[0023] The technical scheme in the embodiments of the present application will be described clearly and completely below in combination with the drawings in the embodiments of the present application. Obviously, the described embodiments are only some embodiments of the present application, not all embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor are within the scope of protection of the present application.

[0024] Specific embodiments will be given below.

[0025] As Figures 1 to 5As shown in the embodiment of this utility model, a tool clamping mechanism for a CNC machining center includes a fixed plate 1, on which a square plate 11 is fixedly attached; a cylinder 12 is fixedly attached to the side wall of the square plate 11; a round rod 13 is fixedly attached to the output end of the cylinder 12; the round rod 13 is through-hole and slidably connected to the square plate 11; a double-sided gear plate 14 is fixedly attached to the end of the round rod 13; a pair of gears 15 are rotatably connected to the side wall of the fixed plate 1; the double-sided gear plate 14 and the gears 15 are correspondingly arranged and in transmission cooperation; a clamping plate 16 is fixedly attached to the middle of the gears 15; a placement groove 17 is opened inside the fixed plate 1; the placement groove 17 is located above the double-sided gear plate 14; during operation, the tool is first inserted into the placement groove 17 and then the cylinder 12 is started, at which time the cylinder 12 will drive the round rod 13 to move forward. When the round rod 13 moves, it pushes the double-sided toothed plate 14 to slide on the fixed plate 1. When the double-sided toothed plate 14 slides, it drives the gear 15 to rotate. At this time, the round rod 13 moves the double-sided toothed plate 14 towards the square plate 11. When the gear 15 rotates, it moves the clamping plate 16 towards the tool. When the clamping plate 16 and the tool come close to each other, the tool is clamped and fixed. When the round rod 13 drives the double-sided toothed plate 14 to move, the teeth on both sides of the clamping plate 16 can engage with each other to make the gear 15 rotate synchronously. Thus, the clamping plate 16 moves synchronously when it rotates, making it clamp the tool. When it is necessary to release the tool, the round rod 13 pushes the double-sided toothed plate 14 towards the placement groove 17 to open the clamping plate 16 to both sides, thereby releasing the tool from clamping.

[0026] like Figure 3 As shown, a rotating groove 2 is provided at the end of the clamping plate 16; a rotating plate 21 is rotatably connected to the middle of the rotating groove 2; the rotating plate 21 and the rotating groove 2 are connected by a torsion spring; during operation, when the clamping plate 16 is moved toward the tool, the rotating groove 2 will first contact the tool. As the clamping plate 16 moves continuously, it will push the rotating plate 21 toward the tool. When the rotating plate 21 contacts the tool, it will automatically adjust to increase the contact area with the tool, thereby increasing friction when clamping the tool; by adding the rotating plate 21, the force of the clamping plate 16 moving can be used to adjust the rotating plate 21 when clamping the tool, thereby increasing the contact area between the clamping plate 16 and the rotating groove 2 when clamping the tool, reducing slippage when clamping the tool and thus increasing the stability of clamping.

[0027] like Figure 4As shown, the inner wall of the placing groove 17 is fixedly connected with a plurality of spring telescopic rods 3; the end of the spring telescopic rod 3 is fixedly connected with a push plate 31; in work; when the cutter is inserted into the inside of the placing groove 17, it will first contact the push plate 31, at this time the push plate 31 will move to the inside of the placing groove 17, at the same time it will extrude the spring telescopic rod 3 to make it compressed, when the cutter enters the inside of the placing groove 17, it will be clamped by the push plate 31 pushed by the spring telescopic rod 3, then the cutter can be clamped and fixed by the clamping plate 16; by increasing the push plate 31, the cutter can be preliminarily clamped by the push force applied to the push plate 31 through the compression of the spring telescopic rod 3 when the cutter enters the inside of the placing groove 17, thereby assisting the clamping and fixing of the cutter by the clamping plate 16, thereby increasing the convenience of fixing the cutter.

[0028] As shown in Figures 4 to 5 , the bottom of the placing groove 17 is rotatably connected with a support plate 4; the end of the support plate 4 is provided as an inclined surface; the support plate 4 and the placing groove 17 are connected by a torsion spring; in work, when the cutter is inserted into the placing groove 17, it can first contact the support plate 4, thereby increasing the guidance when the cutter is pushed to quickly enter the inside of the placing groove 17, at the same time, when the clamping plate 16 moves to clamp the cutter, the clamping plate 16 will move along the surface of the support telescopic rod 5 to push the support plate 4 to rotate to the inside of the placing groove 17, so that it enters the inside of the placing groove 17, thereby reducing the influence of the clamping plate 16 on clamping the cutter; by increasing the support plate 4, the cutter can be first supported by the support plate 4 when it is inserted and then pushed into the inside of the placing groove 17, thereby speeding up the accuracy of inserting the cutter into the placing groove 17, thereby speeding up the installation of the cutter.

[0029] As shown in Figure 5 , the inside of the placing groove 17 is rotatably connected with a support telescopic rod 5; the support telescopic rod 5 and the support plate 4 are slidingly connected; in work, when the support plate 4 rotates, the support telescopic rod 5 will contract, at the same time it will also rotate, thereby cooperating with the support plate 4 to contract into the inside of the placing groove 17, when the clamping plate 16 leaves, the support telescopic rod 5 will expand with the rotation of the support plate 4 to increase the support of the support plate 4, so that it is more stable when supporting the cutter.

[0030] As shown in Figure 3 , a plurality of rubber pads 6 are fixedly connected to the surface of the rotating plate 21; the rubber pad 6 is provided as an arc; in work, when the clamping plate 16 contacts the cutter, the rubber pad 6 will first contact the cutter, with the extrusion of the clamping plate 16, it will constantly push the rubber pad 6 to deform to increase the contact area with the cutter; by increasing the rubber pad 6, the contact with the cutter can be increased by the deformation of the rubber pad 6 when the rotating plate 21 contacts the cutter, thereby increasing the friction when clamping the cutter to increase the stability of clamping the cutter.

[0031] Working principle: through first inserting the cutter into the placing groove 17 inside and then starting the air cylinder 12, the air cylinder 12 will drive the round rod 13 to move at this time, when the round rod 13 moves, it will push the double-sided toothed plate 14 to slide on the fixed plate 1, when the double-sided toothed plate 14 slides, it will drive the gear 15 to rotate, at this time, the round rod 13 will move the double-sided toothed plate 14 to the square plate 11, when the gear 15 rotates, it will move the clamping plate 16 to the cutter, when the clamping plate 16 and each other approach, it will clamp the cutter, thereby clamping and fixing the cutter; when the clamping plate 16 moves to the cutter, the rotating groove 2 will first contact the cutter, with the continuous movement of the clamping plate 16, it will push the rotating plate 21 to the cutter, when the rotating plate 21 contacts the cutter, it will automatically adjust to increase the contact area with the cutter, thereby increasing the friction when clamping the cutter; when the cutter is inserted into the placing groove 17 inside, it will first contact the push plate 31, at this time, the push plate 31 will move to the inside of the placing groove 17, and at the same time, it will extrude the spring telescopic rod 3 to compress it, when the cutter enters the inside of the placing groove 17, it will be clamped by the push plate 31 pushed by the spring telescopic rod 3, then the cutter can be clamped and fixed by the clamping plate 16; when the cutter is inserted into the placing groove 17, it can first contact the supporting plate 4, thereby increasing the guidance when pushing the cutter to quickly enter the inside of the placing groove 17, and when the clamping plate 16 moves to clamp the cutter, the clamping plate 16 will move along the surface of the supporting telescopic rod 5 to push the supporting plate 4 to rotate to the inside of the placing groove 17, so as to enter the inside of the placing groove 17, thereby reducing the influence of the clamping plate 16 on clamping the cutter; when the supporting plate 4 rotates, the supporting telescopic rod 5 will contract, and at the same time, it will also rotate, so as to contract to the inside of the placing groove 17 with the supporting plate 4, when the clamping plate 16 leaves, the supporting telescopic rod 5 will expand with the rotation of the supporting plate 4 to increase the support of the supporting plate 4, so that it is more stable when supporting the cutter; when the clamping plate 16 contacts the cutter, the rubber pad 6 will first contact the cutter, with the extrusion of the clamping plate 16, it will constantly push the rubber pad 6 to deform to increase the contact area with the cutter.

[0032] The basic principle, main features and advantages of the present application are shown and described above. Those skilled in the art should understand that the present application is not limited by the above examples, and the above examples and descriptions in the specification are only to illustrate the principles of the present application. Without departing from the spirit and scope of the present application, various changes and improvements can be made to the present application, and these changes and improvements all fall within the scope of the claimed present application.

Claims

1. A tool holder mechanism for a numerical control machining center comprising a fixed plate (1), characterized in that: The fixed plate (1) surface is fixed with square plate (11); The square plate (11) side wall is fixed with air cylinder (12); The air cylinder (12) output is fixed with round rod (13); The round rod (13) is set on the square plate (11) and is slidingly connected; The end of the round rod (13) is fixed with double-sided tooth plate (14); The fixed plate (1) side wall is rotatably connected with a pair of gears (15); The double-sided tooth plate (14) and the gear (15) are correspondingly arranged and are drivingly connected; The middle of the gear (15) is fixed with the clamping plate (16); The fixed plate (1) is internally provided with a placing groove (17); The placing groove (17) is located above the double-sided tooth plate (14).

2. A tool holder mechanism for a CNC machining center according to claim 1, characterized in that: The end of the clamping plate (16) is provided with a rotating groove (2); The rotating groove (2) is rotatably connected with a rotating plate (21); The rotating plate (21) and the rotating groove (2) are connected by a torsion spring.

3. A tool holder mechanism for a numerically controlled machining center according to claim 2, characterized in that: The inner wall of the placing groove (17) is fixed with a plurality of spring telescopic rods (3); The end of the spring telescopic rod (3) is fixed with a push plate (31).

4. A tool holder mechanism for a numerically controlled machining center according to claim 3, characterized in that: The bottom of the placing groove (17) is rotatably connected with a support plate (4); The end of the support plate (4) is provided with an inclined surface; The support plate (4) and the placing groove (17) are connected by a torsion spring.

5. A tool holder mechanism for a numerically controlled machining center according to claim 4, characterized in that: The inside of the placing groove (17) is rotatably connected with a support telescopic rod (5); The support telescopic rod (5) and the support plate (4) are slidingly connected.

6. A tool holder mechanism for a numerically controlled machining center according to claim 5, characterized in that: The surface of the rotating plate (21) is fixed with a plurality of rubber pads (6); The rubber pad (6) is provided in an arc shape.

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