Quick clamping and positioning tool for numerical control machining center

Abstract

The utility model relates to the technical field of machining and assembling devices, and particularly discloses a quick clamping and positioning tool for a numerical control machining center, which comprises a tool base, supports are mounted on two sides of the top of the tool base, a screw is rotatably arranged between the two supports, two guide shafts are fixedly connected between the two supports, and the two guide shafts are fixedly connected with the top of the tool base. The two guide shafts are symmetrically distributed in the axial direction of the screw rod, sliding blocks distributed at equal intervals in the length direction of the screw rod are in threaded connection with the outer wall of the screw rod, sinking grooves are formed in the two sides of the top of each sliding block, and an electrode can be clamped between the sinking grooves in the sides, close to each other, of every two adjacent sliding blocks. According to the electrode fixing device, a plurality of electrodes can be fixed at a time, the electrodes can be evenly distributed, corresponding machining equipment can conveniently conduct batch machining, the structure is simple, operation and use are easy, and efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of processing and assembling devices, and more specifically to a fast clamping and positioning tool for a numerical control processing center. Background Art

[0002] Copper electrodes are often used in molds. The processing of copper electrodes is usually carried out using CNC machine tools. During processing, the workpiece needs to be fixed on a corresponding fixture, and then the fixture is installed on the operating table of the CNC machine tool for processing. The existing fixture can usually only fix a single workpiece, so the machine tool needs to be started and stopped frequently and the workpiece needs to be replaced. The operation is time-consuming and inconvenient, which will reduce production efficiency. Utility Model Content

[0003] In view of the problems existing in the prior art, the utility model aims to provide a fast clamping and positioning tool for a CNC machining center.

[0004] To solve the above problems, the utility model adopts the following technical solutions.

[0005] A quick clamping and positioning tool for a CNC machining center comprises a tool base, supports are installed on both sides of the top of the tool base, a screw is rotatably arranged between the two supports, two guide shafts are fixedly connected between the two supports, the two guide shafts are symmetrically distributed along the axial direction of the screw, sliders are threadedly connected to the outer wall of the screw and are distributed at equal distances along the length direction of the screw, sinking grooves are opened on both sides of the top of the slider, and an electrode can be clamped between the sinking grooves on the side where two adjacent sliders are close to each other.

[0006] As a further description of the above technical solution: a cavity corresponding to the sinking groove is opened inside the sliding block, a pressure sensor is installed in the cavity, and an elastic mechanism is arranged between the sinking groove and the cavity.

[0007] As a further description of the above technical solution: the elastic mechanism includes a cylinder passing through the slider, one end of the cylinder is located in the sinking groove, the other end of the cylinder extends into the cavity and is fixedly connected to a limiting plate, and a spring is fixedly connected to the side of the limiting plate away from the cylinder, and the end of the spring away from the limiting plate contacts the pressure sensor.

[0008] As a further description of the above technical solution: the guide shaft passes through the slider, and the slider is slidably matched with the outer wall of the guide shaft.

[0009] As a further description of the above technical solution: one end of the screw is fixedly connected to an adjusting head, and the adjusting head is a hexagonal structure and is used in conjunction with a hexagonal wrench.

[0010] As a further description of the above technical solution: the pressure sensor adopts a thin film pressure sensor of model FSR402 from Comex.

[0011] As a further description of the above technical solution: the diameters of the screw and the guide shaft are both 16 mm, the length of the screw is 380 mm, the length of the guide shaft is 350 mm, and the screw and the guide shaft are both precision round steel material components.

[0012] As a further description of the above technical solution: the number of sliders between the two supports is 3-10, that is, the number of clamped electrodes is 2-9, and the supports can be arranged in several rows according to needs.

[0013] Compared with the prior art, the advantages of the present invention are:

[0014] 1. The screw is rotated by the hexagonal wrench and the adjusting head, and the screw drives multiple sliders connected with the screw thread to move synchronously. The distance between two adjacent sliders is the same. The electrode is placed in the sinking groove between the two sliders, and the screw is rotated in the opposite direction to move the slider to clamp the electrode. Multiple electrodes can be fixed at one time, and the electrodes can be evenly distributed, which is convenient for batch processing of corresponding processing equipment. It has a simple structure, is easy to operate and use, and improves efficiency.

[0015] 2. During the clamping process, the cylinder in contact with the electrode moves relative to the cavity, causing the limit plate to move and squeeze the spring, causing the spring to be compressed and generate pressure on the pressure sensor. When the pressure value detected by the pressure sensor stabilizes, the screw stops rotating, fixing the electrode while preventing damage to the electrode surface due to excessive clamping pressure. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the overall three-dimensional structure of the utility model;

[0017] Figure 2 It is a schematic diagram of the cross-sectional plan structure of the utility model as a whole;

[0018] Figure 3 For this utility model Figure 2 The enlarged schematic diagram at A in the middle;

[0019] Figure 4 This is a schematic diagram of the two-row six-station clamping electrode of the utility model.

[0020] Description of the numbers in the figure:

[0021] 1. Tooling base; 2. Support; 3. Screw; 31. Adjusting head; 4. Guide shaft; 5. Slider; 6. Sinking groove; 7. Cavity; 8. Pressure sensor; 9. Elastic mechanism; 91. Cylinder; 92. Limiting plate; 93. Spring. DETAILED DESCRIPTION

[0022] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings in the embodiments of the present invention;

[0023] See also Figures 1 to 4 In the utility model, a fast clamping and positioning tool for a CNC machining center includes a tool base 1, supports 2 are installed on both sides of the top of the tool base 1, a screw 3 is rotatably arranged between the two supports 2, two guide shafts 4 are fixedly connected between the two supports 2, the two guide shafts 4 are symmetrically distributed along the axial direction of the screw 3, and sliders 5 are threadedly connected to the outer wall of the screw 3 and are equidistantly spaced along the length direction of the screw 3. Sinking grooves 6 are opened on both sides of the top of the slider 5, and the electrode can be clamped between the sinking grooves 6 on the side where two adjacent sliders 5 are close to each other.

[0024] In this embodiment, preferably, a cavity 7 corresponding to the sinking groove 6 is opened inside the slider 5 , a pressure sensor 8 is installed in the cavity 7 , and an elastic mechanism 9 is provided between the sinking groove 6 and the cavity 7 .

[0025] In this embodiment, preferably, the elastic mechanism 9 includes a cylinder 91 that passes through the slider 5, one end of the cylinder 91 is located in the sinking groove 6, the other end of the cylinder 91 extends into the cavity 7 and is fixedly connected to a limiting plate 92, and a spring 93 is fixedly connected to the side of the limiting plate 92 away from the cylinder 91, and the end of the spring 93 away from the limiting plate 92 contacts the pressure sensor 8.

[0026] In this embodiment, preferably, the guide shaft 4 passes through the slider 5 , and the slider 5 is slidably matched with the outer wall of the guide shaft 4 , and the guide shaft 4 plays a guiding role for the slider 5 .

[0027] In this embodiment, preferably, one end of the screw rod 3 is fixedly connected with an adjusting head 31 , and the adjusting head 31 is a hexagonal structure and is used in conjunction with a hexagonal wrench, so that the operator can conveniently control the rotation of the screw rod 3 .

[0028] In this embodiment, preferably, the pressure sensor 8 is a thin film pressure sensor 8 of model FSR402 from Comex.

[0029] In this embodiment, preferably, the diameters of the screw rod 3 and the guide shaft 4 are both 16 mm, the length of the screw rod 3 is 380 mm, the length of the guide shaft 4 is 350 mm, and the screw rod 3 and the guide shaft 4 are both precision round steel material components.

[0030] In this embodiment, preferably, the number of sliders 5 between the two supports 2 is 3-10, that is, the number of clamped electrodes is 2-9, and the supports 2 can be arranged in several rows according to needs; according to the number of rows of the supports 2 and the number of clamped electrodes, for example, the supports 2 are arranged in 2 rows, and the number of clamps is 5, that is, two rows of 5 workstations.

[0031] The working principle and use process of this utility model:

[0032] According to the size of the electrode, the distance between the sinking grooves 6 on one side of two adjacent sliders 5 is slightly larger than the size of the electrode. The screw rod 3 is rotated by cooperating with the hexagonal wrench and the adjusting head 31. The screw rod 3 drives the multiple sliders 5 connected with the screw rod 3 to move synchronously. The distance between two adjacent sliders 5 is the same. The sliders 5 are adjusted to the required position, and the electrode is placed in the sinking groove 6 between the two sliders 5. The screw rod 3 is rotated in the opposite direction to move the sliders 5 to clamp the electrode. Multiple electrodes can be fixed at one time, and each electrode can be evenly distributed, which is convenient for the corresponding processing equipment to perform batch processing. The structure is simple, easy to operate and use, and the efficiency is improved.

[0033] During the clamping process, the electrode is in the sinking groove 6 and contacts the cylinder 91. As the distance between the two adjacent sliders 5 becomes smaller for clamping, the cylinder 91 in contact with the electrode moves relatively toward the cavity 7. When the cylinder 91 moves, it drives the limit plate 92 to move and squeeze the spring 93, so that the spring 93 is compressed and generates pressure on the pressure sensor 8. When the edge of the electrode is in close contact with the vertical wall of the sinking groove 6, the spring 93 is squeezed to the shortest state. At this time, the pressure value detected by the pressure sensor 8 is stable, and the rotation of the screw 3 is stopped. While fixing the electrode, it also avoids damage to the electrode surface due to excessive clamping pressure.

[0034] The electronic components and modules used in the content of this utility model can all be parts that are commonly used in the market and can realize the specific functions in this case, and the specific models and sizes can be selected and adjusted according to actual needs. The electronic components and modules are all connected to an external power supply and a control switch for use. Their specific circuit connection methods and methods of use are commonly used public technologies and will not be elaborated on here.

[0035] The above is only a preferred specific implementation of the utility model; however, the protection scope of the utility model is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical solution and improved ideas of the utility model within the technical scope disclosed by the utility model, which should be included in the protection scope of the utility model.

Claims

1. A fast clamping and positioning tool for a CNC machining center, comprising a tool base (1), characterized in that: Supports (2) are installed on both sides of the top of the tooling base (1), a screw (3) is rotatably arranged between the two supports (2), two guide shafts (4) are fixedly connected between the two supports (2), the two guide shafts (4) are symmetrically distributed along the axial direction of the screw (3), and sliders (5) are threadedly connected on the outer wall of the screw (3) and are distributed at equal distances along the length direction of the screw (3), and sinking grooves (6) are opened on both sides of the top of the slider (5), and the electrode can be clamped between the sinking grooves (6) on the side where two adjacent sliders (5) are close to each other.

2. The rapid clamping and positioning tool for a CNC machining center according to claim 1, characterized in that: A cavity (7) corresponding to the sinking groove (6) is provided inside the sliding block (5), a pressure sensor (8) is installed in the cavity (7), and an elastic mechanism (9) is provided between the sinking groove (6) and the cavity (7).

3. The rapid clamping and positioning tool for a CNC machining center according to claim 2, characterized in that: The elastic mechanism (9) comprises a cylinder (91) penetrating the slider (5), one end of the cylinder (91) is located in the sinking groove (6), the other end of the cylinder (91) extends into the cavity (7) and is fixedly connected to a limit plate (92), a side of the limit plate (92) away from the cylinder (91) is fixedly connected to a spring (93), and one end of the spring (93) away from the limit plate (92) contacts the pressure sensor (8).

4. The rapid clamping and positioning tool for a CNC machining center according to claim 1, characterized in that: The guide shaft (4) passes through the slider (5), and the slider (5) is slidably matched with the outer wall of the guide shaft (4).

5. The rapid clamping and positioning tool for a CNC machining center according to claim 1, characterized in that: One end of the screw rod (3) is fixedly connected to an adjusting head (31), and the adjusting head (31) is a hexagonal structure and is used in conjunction with a hexagonal wrench.

6. The fast clamping and positioning tool for a CNC machining center according to claim 2, characterized in that: The pressure sensor (8) is a thin film pressure sensor (8) of model FSR402 from Comex.

7. The rapid clamping and positioning tool for a CNC machining center according to claim 1, characterized in that: The diameters of the screw rod (3) and the guide shaft (4) are both 16 mm, the length of the screw rod (3) is 380 mm, the length of the guide shaft (4) is 350 mm, and the screw rod (3) and the guide shaft (4) are both precision round steel material components.

8. The rapid clamping and positioning tool for a CNC machining center according to claim 1, characterized in that: The number of the sliders (5) between the two supports (2) is 3-10, that is, the number of clamped electrodes is 2-9, and the supports (2) can be arranged in several rows according to needs.

Images