CN207402488U - Parts fixing device for CNC machining center - Google Patents

Abstract

The utility model discloses a part fixing device for CNC machining center, the device comprises a device body, install the motor on one side bottom outer wall of device body, the adjustment tank has been seted up to the bottom of device body, the movable opening with the adjustment tank intercommunication is seted up at the top of device body, be connected with spacing horizontal pole and the screw rod that is parallel to each other between the both sides inner wall of adjustment tank, and the one end of screw rod and the output shaft of motor, be connected with two movable adjusting plates between spacing horizontal pole and the screw rod, the gangbar has all been welded at movable adjusting plate's top, and wherein the one end of gangbar runs through the top that movable opening extended to the device body, and gangbar and movable opening's inner wall sliding connection, and the top fixed mounting of gangbar has the U-shaped fixed bolster, the inside of U-shaped fixed bolster is equipped with two relative elastic splint. The utility model relates to a rationally, can press from both sides tight fixed, reduce cost to not unidimensional part to improve the machining precision.

Description

Parts fixing device for CNC machining center

technical field

The utility model relates to the technical field of CNC machining, in particular to a part fixing device for a CNC machining center.

Background technique

CNC is also called computer gong, CNCCH or CNC machine tool, which is actually a name in Hong Kong. Later, it was introduced to the Pearl River Delta of the mainland. It is actually a CNC milling machine. Some people in Guangzhou, Jiangsu, Zhejiang and Shanghai call it "CNC machining center". General CNC machining usually refers to precision machining, CNC machining lathes, CNC machining milling machines, CNC machining boring and milling machines, etc. At present, parts need to be fixed and clamped during CNC machining. The existing parts fixing devices for CNC machining centers have a simple structure and relatively simple performance. Usually, they are only convenient for clamping and fixing parts of a specific size, and the flexibility is poor. , it is inconvenient to adjust, and at the same time, the processing accuracy is low, and there are great limitations in processing.

Utility model content

The purpose of the utility model is to solve the shortcomings in the prior art, and propose a part fixing device for CNC machining centers.

In order to achieve the above object, the utility model adopts the following technical solutions:

A part fixing device for a CNC machining center, comprising a device body, a motor is installed on one side of the bottom outer wall of the device body, an adjustment groove is provided at the bottom end of the device body, and an adjustment slot is provided at the top of the device body. The movable opening connected with the groove, the inner walls of the two sides of the adjustment groove are connected with a limit bar and a screw parallel to each other, and one end of the screw is connected with the output shaft of the motor, and two are connected between the limit bar and the screw. A movable adjustment plate, the top of the movable adjustment plate is welded with a linkage rod, wherein one end of the linkage rod extends through the movable opening to the top of the device body, and the linkage rod is slidably connected with the inner wall of the movable opening, and the top of the linkage rod is fixedly installed with a U The U-shaped fixed bracket is provided with two opposite elastic splints inside the U-shaped fixed bracket. A plurality of support rods corresponding to the elastic rods are welded on the inner wall of the side, wherein a limit groove is provided on the side of the support rod close to the elastic rod, and a spring is fixedly connected to the inner wall of the limit groove, and one end of the spring is connected to the elastic rod. connect.

Preferably, a fixed groove is provided on the inner wall of the adjustment groove away from the motor, wherein both the fixed groove and the screw rod have a T-shaped structure, and a bearing is installed in the vertical groove body of the fixed groove, and the screw rod is rotationally connected with the device body through the bearing .

Preferably, the screw rod is a two-way threaded rod, in which a part of threads matches with one movable adjustment plate, and another part of threads matches with another movable adjustment plate, and the movable adjustment plate is slidably connected with the limit cross bar.

Preferably, the width of the U-shaped fixed bracket is greater than the width of the movable opening, and both sides of the bottom of the U-shaped fixed bracket are provided with slots, and rolling balls are arranged in the slots, and a part of the rolling balls extends outside the slots. And the rolling ball is rollingly connected to the top of the device body.

Preferably, a limit ring is provided on the inner wall of the limit groove close to the elastic rod, wherein one end of the elastic rod extends through the inner ring of the limit ring and extends into the limit groove, and the elastic rod and the limit ring slide connect.

Preferably, the elastic rod is a transverse T-shaped structure, wherein the horizontal rod body of the elastic rod is slidingly connected to the inner wall of the limiting groove, and the width of the horizontal rod body of the elastic rod is larger than the diameter of the inner ring of the limiting ring.

The beneficial effect of the utility model is: the motor drives the screw to rotate, so that the two movable adjustment plates are moved closer to or separated from each other under the rotation power of the thread and the orientation of the limit cross bar, so that parts of different sizes can be quickly adjusted The purpose of fixing is strong flexibility and cost reduction. At the same time, two elastic splints are used to clamp parts under the effect of elasticity. The operation is simple and convenient, which relieves the vibration force generated in the CNC machining process and improves the machining accuracy. The utility model has a reasonable design. The operation is simple and convenient, and parts of different sizes can be clamped and fixed, the cost is reduced, and the machining accuracy is improved.

Description of drawings

Fig. 1 is the front view anatomical structural schematic diagram of a kind of CNC machining center parts fixing device proposed by the utility model;

Fig. 2 is the top view structure schematic diagram of a kind of CNC machining center part fixing device proposed by the utility model;

Fig. 3 is a partial side view structural diagram of a part fixing device for a CNC machining center proposed by the utility model.

In the figure: 1 device body, 2 motor, 3 adjustment slot, 4 movable opening, 5 limit bar, 6 screw, 7 movable adjustment plate, 8 linkage rod, 9 U-shaped fixed bracket, 10 elastic splint, 11 elastic rod, 12 Support rod, 13 limit grooves, 14 springs.

Detailed ways

The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. example.

Referring to Figures 1-3, a CNC machining center parts fixing device includes a device body 1, a motor 2 is installed on one side of the bottom outer wall of the device body 1, an adjustment groove 3 is opened at the bottom of the device body 1, and the device body 1 The top of the top is provided with a movable opening 4 communicating with the adjustment groove 3, and the inner walls on both sides of the adjustment groove 3 are connected with a limit bar 5 and a screw 6 parallel to each other, and one end of the screw 6 is connected with the output shaft of the motor 2, Two movable adjustment plates 7 are connected between the limit cross bar 5 and the screw rod 6, and the tops of the movable adjustment plates 7 are welded with linkage rods 8, wherein one end of the linkage rods 8 extends through the movable opening 4 to the top of the device body 1, And the linkage bar 8 is slidingly connected with the inwall of the movable opening 4, and the top of the linkage bar 8 is fixedly equipped with a U-shaped fixed bracket 9, and the inside of the U-shaped fixed bracket 9 is provided with two opposite elastic splints 10, two elastic splints 10 A plurality of linearly arranged elastic rods 11 are welded on the far side, and a plurality of supporting rods 12 corresponding to the elastic rods 11 are welded on the inner walls of both sides of the U-shaped fixed bracket 9, wherein the supporting rods 12 are close to the elastic rods 11 A limit groove 13 is provided on one side of the limit groove 13, and a spring 14 is fixedly connected to the inner wall of the limit groove 13, and one end of the spring 14 is connected with the elastic rod 11.

In this embodiment, the inner wall of the adjustment groove 3 away from the motor 2 is provided with a fixed groove, wherein the fixed groove and the screw rod 6 are T-shaped structures, and the vertical groove body of the fixed groove is equipped with a bearing, and the screw rod 6 passes through the bearing and the screw rod 6. The device body 1 is rotatably connected, the screw 6 is a two-way threaded rod, one part of the thread matches with one movable adjustment plate 7, the other part of the thread matches the other movable adjustment plate 7, and the movable adjustment plate 7 slides with the limit bar 5 connection, the width of the U-shaped fixed bracket 9 is greater than the width of the movable opening 4, and both sides of the bottom of the U-shaped fixed bracket 9 are provided with a draw-in groove, and a rolling ball is provided in the draw-in groove, wherein a part of the rolling ball extends to the outside of the draw-in groove. And the rolling ball is rollingly connected to the top of the device body 1, and the limit groove 13 is provided with a limit ring on the side wall near the elastic rod 11, wherein one end of the elastic rod 11 extends through the inner ring of the limit ring to the limit groove 13, and the elastic rod 11 is slidably connected with the limit ring, the elastic rod 11 is a transverse T-shaped structure, wherein the horizontal rod body of the elastic rod 11 is slidably connected with the inner wall of the limit groove 13, and the horizontal rod body width of the elastic rod 11 is greater than The diameter of the inner ring of the limit ring.

In this embodiment, when working, the motor 2 is started, and the motor 2 can adopt a bidirectional motor, which drives the screw rod 6 to rotate through the motor 2, so that the two movable adjustment plates 7 can only Linear reciprocating motion, the two movable adjustment plates 7 are close to or separated from each other, which can realize the purpose of quickly adjusting and fixing parts of different sizes, has strong flexibility and reduces costs, and at the same time utilizes the elastic effect of the two elastic splints 10 on the spring 14 Next, the elastic rod 11 is driven to expand and contract back and forth in the support rod 12, which can clamp parts of different widths. The operation is simple and convenient, and it can also alleviate the vibration force generated during the CNC machining process and improve the machining accuracy.

The above is only a preferred embodiment of the utility model, but the scope of protection of the utility model is not limited thereto. The equivalent replacement or change of the new technical solution and the concept of the utility model shall be covered by the protection scope of the utility model.

Claims (6)

1. A part fixing device for a CNC machining center, comprising a device body (1), characterized in that a motor (2) is installed on one side bottom outer wall of the device body (1), and the device body (1) There is an adjustment groove (3) at the bottom end of the device body (1), and a movable opening (4) communicating with the adjustment groove (3) is opened on the top of the device body (1), and the inner walls on both sides of the adjustment groove (3) are connected There are space-limiting cross-bars (5) and screw rods (6) parallel to each other, and one end of the screw-rod (6) is connected with the output shaft of the motor (2), and there is a Two movable adjustment plates (7), the top of the movable adjustment plate (7) is welded with a linkage rod (8), wherein one end of the linkage rod (8) extends through the movable opening (4) to the top of the device body (1), And the linkage rod (8) is slidingly connected with the inner wall of the movable opening (4), and the top of the linkage rod (8) is fixedly equipped with a U-shaped fixing bracket (9), and the inside of the U-shaped fixing bracket (9) is provided with two Opposite elastic splints (10), two elastic splints (10) are welded with a plurality of linearly arranged elastic rods (11) on the side far away from each other, and the inner walls of both sides of the U-shaped fixed bracket (9) are A plurality of supporting rods (12) corresponding to the elastic rods (11) are welded, wherein the supporting rods (12) are provided with limiting grooves (13) near the side of the elastic rods (11), and the limiting grooves (13) A spring (14) is fixedly connected to the inner wall, and one end of the spring (14) is connected with the elastic rod (11). 2. A part fixing device for a CNC machining center according to claim 1, characterized in that, the inner wall of the adjusting groove (3) away from the motor (2) is provided with a fixing groove, wherein the fixing groove and the screw rod (6) are all T-shaped structures, bearings are installed in the vertical groove body of the fixing groove, and the screw rod (6) is rotatably connected with the device body (1) through the bearings. 3. A part fixing device for a CNC machining center according to claim 1, characterized in that, the screw (6) is a bidirectional threaded rod, wherein a part of the thread matches a movable adjusting plate (7), and the other part The screw thread is matched with another movable adjusting plate (7), and the movable adjusting plate (7) is slidably connected with the limit cross bar (5). 4. a kind of CNC machining center parts fixing device according to claim 1, is characterized in that, the width of described U-shaped fixed bracket (9) is greater than the width of movable opening (4), and U-shaped fixed bracket (9) Both sides of the bottom of the device are provided with card slots, and rolling balls are arranged in the card slots, wherein a part of the rolling balls extends out of the card slots, and the rolling balls are rollingly connected to the top of the device body (1). 5. A part fixing device for a CNC machining center according to claim 1, characterized in that a limit ring is provided on the inner wall of the limit groove (13) close to the elastic rod (11), wherein the elastic One end of the rod (11) extends through the inner ring of the limiting ring and extends into the limiting groove (13), and the elastic rod (11) is slidably connected with the limiting ring. 6. The part fixing device for a CNC machining center according to claim 5, wherein the elastic rod (11) is a transverse T-shaped structure, wherein the horizontal rod body of the elastic rod (11) and the limit groove The inner wall of (13) is slidingly connected, and the width of the horizontal rod body of the elastic rod (11) is greater than the diameter of the inner circle of the limiting ring.