Numerical control machine tool oil pressure fixture pressure detection device

Abstract

The utility model relates to detection device technical field, and disclose a kind of numerical control machine tool oil pressure fixture pressure detection device, including connecting block and the detection mechanism of assembly in the connecting block one side, the detection mechanism includes fixedly connected with the fixed column of connecting block bottom and the cylinder of fixedly connected with the fixed column bottom, and erect three movable blocks on the surface of cylinder.This numerical control machine tool oil pressure fixture pressure detection device, by the setting of detection mechanism, the bottom of cylinder is placed at jig center, starts jig, and the movable block of movable jaw of jig is pushed, drives movable rod in the rectangular groove of the surface of rectangular plate in movable block top sliding, by the position change of three movable rods in three rectangular grooves, to quickly judge the tightening force of jig jaw, and can quickly distinguish which jaw has problem, and the device structure is simple, and the pressure problem of detection jig is relatively fast, improve the practicality of the device.

Description

Technical Field

[0001] This utility model relates to the field of detection device technology, and in particular to a pressure detection device for CNC machine tool hydraulic fixtures. Background Technology

[0002] When performing cutting operations on CNC machine tools, the workpiece needs to be clamped by a fixture for cutting. CNC machine tool fixtures generally use three-jaw chuck fixtures. Its working principle is to use the hydraulic power provided by the hydraulic system to drive the three jaws to move simultaneously towards the center or outward, thereby clamping or releasing the workpiece.

[0003] Currently, the pressure detection devices for hydraulic fixtures of CNC machine tools on the market have drawbacks: general detection devices use a large number of sensors, which may easily cause problems after long-term use, and may require debugging before use, which is cumbersome and makes it difficult to quickly detect the pressure of the fixture, thus affecting the production capacity of CNC machine tools; therefore, we have designed a pressure detection device for hydraulic fixtures of CNC machine tools. Utility Model Content

[0004] The technical problem solved by this utility model is to provide a CNC machine tool hydraulic fixture pressure detection device that is highly practical, easy to operate, and has a simple structure. This solves the problem mentioned in the background art that general detection devices use a lot of sensors and may easily develop problems after long-term use.

[0005] To achieve the above objectives, this utility model is implemented through the following technical solution: a pressure detection device for a CNC machine tool hydraulic fixture, comprising a connecting block and a detection mechanism assembled on one side of the connecting block;

[0006] The detection mechanism includes a fixed column fixedly connected to the bottom of the connecting block and a cylinder fixedly connected to the bottom of the fixed column, as well as three movable blocks mounted on the surface of the cylinder. Three springs are fixedly connected to one side of the three movable blocks, and three buffer rods are sleeved inside the three springs. The other ends of the three springs are fixedly connected to the surface of the cylinder. Three rectangular plates are fixedly connected to one side of the surface of the fixed column. Rectangular grooves are opened on the surface of the three rectangular plates. Three movable rods are slidably connected inside the three rectangular grooves. The bottoms of the three movable rods are fixedly connected to the tops of the three movable blocks.

[0007] Optionally, the tops of the three movable rods extend to the tops of the three rectangular plates, and triangular blocks are provided on both sides of the three movable rods. The surface of the rectangular plates is provided with scale lines.

[0008] Optionally, a support column is fixedly connected to the other side of the connecting block, and a first semi-circular block is fixedly connected to the bottom of the support column.

[0009] Optionally, two sliding rods are fixedly connected to both sides of the first semicircular block, and a fixing plate is fixedly connected to one end of each sliding rod.

[0010] Optionally, the surface of the fixing plate is threadedly connected to a threaded rod, one end of which is rotatably connected to a second semicircular block via a bearing, and the two sides of the second semicircular block are slidably connected to the surfaces of two sliding rods.

[0011] Optionally, the bottom of the cylinder is longer than three movable blocks, and the bottom of the cylinder is provided with an anti-slip pad.

[0012] This utility model provides a pressure detection device for hydraulic fixtures in CNC machine tools, which has the following beneficial effects:

[0013] This CNC machine tool hydraulic fixture pressure detection device, through the setting of the detection mechanism, places the bottom of the cylinder at the center of the fixture. When the fixture is started, the fixture's jaws push the movable block, causing the movable rod at the top of the movable block to slide within a rectangular groove on the surface of the rectangular plate. By observing the positional changes of the three movable rods in the three rectangular grooves, the device can quickly determine the clamping force of the fixture jaws and quickly identify which jaw is malfunctioning. Furthermore, the device has a simple structure and can quickly detect pressure problems in the fixture, thus improving its practicality. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0015] Figure 2 This is a schematic diagram of the disassembled structure of the testing mechanism of this utility model;

[0016] Figure 3 This is a schematic diagram of the second semicircular block structure of this utility model;

[0017] Figure 4 This is a schematic diagram of the bottom structure of the circular block of this utility model.

[0018] In the diagram: 1. Connecting block; 2. Detection mechanism; 201. Fixed column; 202. Cylinder; 203. Movable block; 204. Spring; 205. Rectangular plate; 206. Rectangular groove; 207. Movable rod; 3. Support column; 4. First semicircular block; 5. Sliding rod; 6. Fixed plate; 7. Threaded rod; 8. Second semicircular block. Detailed Implementation

[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the scope of protection of the present utility model.

[0020] Please see Figures 1 to 4 This utility model provides a technical solution: a pressure detection device for a CNC machine tool hydraulic fixture, comprising a connecting block 1 and a detection mechanism 2 assembled on one side of the connecting block 1. The detection mechanism 2 includes a fixed column 201 fixedly connected to the bottom of the connecting block 1 and a cylinder 202 fixedly connected to the bottom of the fixed column 201, and three movable blocks 203 mounted on the surface of the cylinder 202. Three springs 204 are fixedly connected to one side of the three movable blocks 203, and three buffer rods are sleeved inside the three springs 204. The other ends of the three springs 204 are fixedly connected to the surface of the cylinder 202. Three rectangular plates 205 are fixedly connected to one side of the surface of the fixed column 201, and the surfaces of the three rectangular plates 205 are provided with... The rectangular grooves 206 have three movable rods 207 slidably connected inside them. The bottoms of the three movable rods 207 are fixedly connected to the tops of the three movable blocks 203. The bottom of the cylinder 202 is placed at the center of the fixture. When the fixture is activated, the grippers of the fixture push the movable blocks 203, causing the movable rods 207 on the top of the movable blocks 203 to slide within the rectangular grooves 206 on the surface of the rectangular plate 205. By observing the positional changes of the three movable rods 207 within the three rectangular grooves 206, the clamping force of the fixture grippers can be quickly determined, and it is possible to quickly identify which gripper is malfunctioning. Furthermore, this device has a simple structure and can quickly detect pressure issues in the fixture, thus improving its practicality.

[0021] Furthermore, the tops of the three movable rods 207 extend to the tops of the three rectangular plates 205, and triangular blocks are provided on both sides of the three movable rods 207. The surface of the rectangular plates 205 is provided with scale lines, which indicate the distance the movable rods 207 can move.

[0022] Furthermore, the other side of the connecting block 1 is fixedly connected to the support column 3, and the bottom of the support column 3 is fixedly connected to the first semicircular block 4, wherein the first semicircular block 4 can fit against the arc-shaped surface of the fixture.

[0023] Furthermore, two sliding rods 5 are fixedly connected to both sides of the first semicircular block 4, and a fixing plate 6 is fixedly connected to one end of each sliding rod 5.

[0024] Furthermore, the surface of the fixed plate 6 is threadedly connected to a threaded rod 7, one end of which is rotatably connected to a second semicircular block 8 via a bearing. The two sides of the second semicircular block 8 are slidably connected to the surfaces of the two slide rods 5. The rotation of the threaded rod 7 can push the second semicircular plate to move on the surface of the slide rod 5 through the central bearing.

[0025] Furthermore, the bottom of the cylinder 202 is longer than the three movable blocks 203, and the bottom of the cylinder 202 is provided with an anti-slip pad, which can reduce slippage when the cylinder 202 is placed on the fixture.

[0026] In this invention, the working steps of the device are as follows:

[0027] First step: Place the bottom of cylinder 202 at the center of the fixture, and at the same time make the first semicircular block 4 fit against the arc-shaped surface of the fixture. Rotate the threaded rod 7 so that it drives the second semicircular block 8 to clamp the fixture through the bearing, so as to fix the device on the fixture.

[0028] The second step: Start the fixture, causing the fixture's grippers to push the movable block 203, which in turn causes the movable rod 207 at the top of the movable block 203 to slide within the rectangular groove 206 on the surface of the rectangular plate 205. By observing the positional changes of the three movable rods 207 within the three rectangular grooves 206, the clamping force of the fixture's grippers can be quickly determined, and it can be quickly identified which gripper is malfunctioning. Furthermore, this device has a simple structure and can quickly detect pressure issues in the fixture, thus improving its practicality.

[0029] It should be noted that the device structure and accompanying drawings of this utility model mainly describe the principle of this utility model. In terms of the technical aspects of this design principle, the setting of the power mechanism, power supply system and control system of the device is not fully described. However, under the premise that those skilled in the art understand the principle of the above utility model, the specific details of its power mechanism, power supply system and control system can be clearly understood. The control method in the application document is automatic control through a controller. The control circuit of the controller can be implemented by those skilled in the art through simple programming.

[0030] All standard parts used can be purchased from the market, and can be customized according to the instructions and drawings. The specific connection methods of each part adopt conventional methods such as bolts, rivets, and welding that are mature in the existing technology. The machinery, parts and equipment adopt conventional models in the existing technology, and the structure and principle of the components known to those skilled in the art can be known by those skilled in the art through technical manuals or conventional experimental methods.

[0031] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A pressure detection device for a CNC machine tool hydraulic fixture, characterized in that: It includes a connecting block (1) and a detection mechanism (2) assembled on one side of the connecting block (1); The detection mechanism (2) includes a fixed column (201) fixedly connected to the bottom of the connecting block (1) and a cylinder (202) fixedly connected to the bottom of the fixed column (201), and three movable blocks (203) mounted on the surface of the cylinder (202). Three springs (204) are fixedly connected to one side of the three movable blocks (203), and three buffer rods are sleeved inside the three springs (204). The other end of the three springs (204) is fixedly connected to the surface of the cylinder (202). Three rectangular plates (205) are fixedly connected to one side of the surface of the fixed column (201). Rectangular grooves (206) are opened on the surface of the three rectangular plates (205). Three movable rods (207) are slidably connected inside the three rectangular grooves (206). The bottom of the three movable rods (207) is fixedly connected to the top of the three movable blocks (203).

2. The pressure detection device for a CNC machine tool hydraulic fixture according to claim 1, characterized in that: The tops of the three movable rods (207) extend to the tops of the three rectangular plates (205), and triangular blocks are provided on both sides of the three movable rods (207). The surface of the rectangular plates (205) is provided with scale lines.

3. The pressure detection device for CNC machine tool hydraulic fixtures according to claim 1, characterized in that: The other side of the connecting block (1) is fixedly connected to the support column (3), and the bottom of the support column (3) is fixedly connected to the first semi-circular block (4).

4. The pressure detection device for a CNC machine tool hydraulic fixture according to claim 3, characterized in that: Two sliding rods (5) are fixedly connected to both sides of the first semicircular block (4), and a fixing plate (6) is fixedly connected to one end of the two sliding rods (5).

5. The pressure detection device for a CNC machine tool hydraulic fixture according to claim 4, characterized in that: The surface of the fixed plate (6) is threadedly connected to a threaded rod (7), one end of which is rotatably connected to a second semicircular block (8) via a bearing, and the two sides of the second semicircular block (8) are slidably connected to the surfaces of two sliding rods (5).

6. The pressure detection device for a CNC machine tool hydraulic fixture according to claim 1, characterized in that: The bottom of the cylinder (202) is longer than the three movable blocks (203), and the bottom of the cylinder (202) is provided with an anti-slip pad.

Images