Automatic compensation equipment for cutter abrasion of numerical control machining center

Abstract

The utility model discloses a numerical control machining center cutter wear automatic compensation device which comprises a driving displacement device which is in driving connection with a detection compensation device. A detection compensation device, a controller and a servo motor are arranged to drive a positive and negative threaded rod to rotate, a sliding rod is matched to simultaneously drive two displacement patches to move in opposite directions, the thickness of a tool is measured through an infrared distance meter, and then the abrasion condition of the tool can be obtained; the cutter grinding device is controlled through the sensor and the controller so that real-time compensation and repair can be achieved; and through the arranged driving displacement device, an electric push rod pushes a push plate backwards, a first connecting rod and a second connecting rod are driven to rotate in a matched mode, the detection compensation device is driven to be transferred to the cutter grinding device, and the cutter abrasion condition is conveniently detected.

Description

Technical Field

[0001] The utility model relates to the technical field of tool production and processing, in particular to an automatic compensation device for tool wear in a numerical control machining center. Background Art

[0002] In automated production, an extremely critical technology is tool condition monitoring technology, which is one of the main means to reduce manufacturing costs, reduce manufacturing environmental hazards, and ensure the normal and efficient operation of the manufacturing system and product quality. During the machining process, timely grasping the status of the tool, monitoring and diagnosing tool wear and other damage failures are very important for extending the trouble-free operation of machine tools and improving product quality.

[0003] At present, tool grinding devices can perform timely repair operations on tools. The traditional tool detection method uses a camera to take pictures of the tool to obtain the wear condition. This detection method is cumbersome, time-consuming and labor-intensive, and requires analysis of the pictures. It is unable to obtain a more accurate wear condition. At the same time, it is unable to transmit data to the tool grinding device in time to compensate and repair the tool in time. Utility Model Content

[0004] In order to overcome the shortcomings of the prior art, one of the purposes of the utility model is to provide an automatic compensation device for tool wear in a CNC machining center. Through the detection and compensation device and controller that are set up, the servo motor drives the positive and negative threaded rods to rotate, and the sliding rod simultaneously drives the two displacement patches to move toward each other, and the thickness of the tool is measured by an infrared rangefinder, so that the wear condition of the tool can be obtained, and the tool grinding device is controlled by the sensor and the controller so that real-time compensation and repair can be achieved; through the set driving displacement device, the electric push rod pushes the push plate backward, driving the connecting rod one and the connecting rod two to rotate in coordination with each other, and driving the detection and compensation device to be transferred to the tool grinding device, so as to facilitate the detection of tool wear.

[0005] One of the purposes of the utility model is achieved by the following technical solution: an automatic compensation device for tool wear in a CNC machining center, comprising: a driving displacement device, the driving displacement device being drivingly connected to a detection compensation device;

[0006] The driving displacement device comprises two L-shaped mounting plates which are symmetrically arranged on the left and right, the front sides of the two L-shaped mounting plates being fixedly connected by a connecting plate, the side walls of the L-shaped mounting plates are each provided with a sliding hole, the inner wall of the sliding hole is slidably connected with a push plate, the middle of the connecting plate is inlaid and fixedly connected with an electric push rod, the movable end of the electric push rod is fixedly connected to the front wall of the push plate, a rotating block is provided on both sides of the upper surface of the push plate, the side walls of the rotating block are rotatably connected with a connecting rod 1, the inner side walls of the L-shaped mounting plates are rotatably connected with a connecting rod 2, the top side walls of the connecting rod 1 and the connecting rod 2 on the same side are rotatably connected, the upper surface of the bottom end of the L-shaped mounting plate is provided with a sliding groove, the inner wall of the sliding groove is slidably connected with a slider, and the upper surface of the slider is fixedly connected with a telescopic rod;

[0007] The detection and compensation device includes a connecting column, both ends of which are fixedly connected to side plates, a sliding rod is fixedly connected between opposite surfaces of the two side plates, a servo motor is fixedly connected to the side wall of one side of the side plate, the output end of the servo motor passes through the inner wall of the side plate and is fixedly connected to a positive and negative threaded rod, the outer wall of the positive and negative threaded rod passes through the threaded connection with two displacement patches, the side walls of the sliding rod pass through the side walls of the displacement patches, a baffle is welded on one side of one of the displacement patches, and an installation box is welded on one side of the other displacement patch at a position corresponding to the baffle, an infrared rangefinder is placed inside the installation box, a guide hole is opened on one side of the installation box, a ring is welded on the top of the displacement patch, and a displacement sensor is sleeved inside the ring. Through the detection and compensation device and controller that are set up, the servo motor drives the forward and reverse threaded rods to rotate, and cooperates with the sliding rod to drive the two displacement patches to move towards each other at the same time, and measures the thickness of the tool through the infrared rangefinder, thereby being able to obtain the wear condition of the tool, and control the tool grinding device through the sensor and the controller so as to achieve real-time compensation and repair; through the set driving displacement device, the electric push rod pushes the push plate backward, driving the connecting rod one and the connecting rod two to rotate in coordination with each other, and driving the detection and compensation device to be transferred to the tool grinding device, so as to facilitate the detection of the tool wear condition.

[0008] According to the automatic tool wear compensation device for a CNC machining center, a controller is fixedly installed on the inner wall of the side panel on one side, the input end of the displacement sensor is electrically connected to the output end of the controller, and the input ends of the controller and the infrared rangefinder are both electrically connected to the mains output end.

[0009] According to the automatic tool wear compensation device for a CNC machining center, the data ends of the displacement sensor and the infrared rangefinder are connected to the controller, and the data end of the controller is connected to the tool grinding device.

[0010] Provided is a CNC machining center tool wear automatic compensation device, wherein the bottom ends of the side plates are fixedly connected to the top ends of the telescopic rods.

[0011] According to the automatic tool wear compensation device for a CNC machining center, the outer walls of the side plates are rotatably connected to the rotatable connection between the connecting rod 1 and the connecting rod 2 on the same side.

[0012] Additional aspects and advantages of the present invention will be given in part in the following description, and in part will become apparent from the following description, or will be learned through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] The utility model is further described below in conjunction with the accompanying drawings and embodiments;

[0014] Figure 1 This is a three-dimensional diagram of an automatic compensation device for tool wear in a CNC machining center according to the utility model;

[0015] Figure 2 This is a three-dimensional diagram of a driving displacement device of a tool wear automatic compensation device for a CNC machining center according to the utility model;

[0016] Figure 3 This is a three-dimensional diagram of the detection and compensation of an automatic compensation device for tool wear in a CNC machining center according to the utility model;

[0017] Figure 4 This is an enlarged view of point A of an automatic tool wear compensation device for a CNC machining center according to the utility model.

[0018] Legend:

[0019] 1. Driving displacement device; 2. Detection and compensation device; 3. Controller; 101. L-shaped mounting plate; 1011. Sliding hole; 1012. Sliding groove; 102. Connecting plate; 103. Electric push rod; 104. Push plate; 1041. Rotating block; 105. Connecting rod one; 106. Connecting rod two; 107. Telescopic rod; 108. Sliding block; 201. Connecting column; 202. Side plate; 203. Servo motor; 204. Positive and negative threaded rod; 205. Sliding rod; 206. Displacement patch; 207. Blocking piece; 208. Ring; 209. Displacement sensor; 210. Mounting box; 211. Infrared rangefinder; 212. Guide hole. DETAILED DESCRIPTION

[0020] This section will describe in detail the specific embodiments of the utility model. The preferred embodiments of the utility model are shown in the accompanying drawings. The purpose of the accompanying drawings is to supplement the description of the text part of the specification with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the utility model, but it cannot be understood as a limitation on the protection scope of the utility model.

[0021] Reference Figure 1-4, the utility model embodiment is a CNC machining center tool wear automatic compensation device, which includes: a driving displacement device 1, the driving displacement device 1 is drivingly connected to a detection compensation device 2;

[0022] The driving displacement device 1 includes two L-shaped mounting plates 101 symmetrically arranged on the left and right. The front sides of the two L-shaped mounting plates 101 are fixedly connected by a connecting plate 102. The side walls of the L-shaped mounting plates 101 are each provided with a sliding hole 1011. The inner wall of the sliding hole 1011 is slidably connected to a push plate 104. An electric push rod 103 is embedded and fixedly connected in the middle of the connecting plate 102. The movable end of the electric push rod 103 is fixedly connected to the front wall of the push plate 104. The upper surface of the push plate 104 is Rotating blocks 1041 are provided on both sides of the surface, and the side walls of the rotating blocks 1041 are rotatably connected with connecting rods 105, and the inner side walls of the L-shaped mounting plate 101 are rotatably connected with connecting rods 106. The top side walls of the connecting rods 105 and 106 on the same side are rotatably connected, and the upper surface of the bottom end of the L-shaped mounting plate 101 is provided with a sliding groove 1012, and the inner wall of the sliding groove 1012 is slidably connected with a slider 108, and the upper surface of the slider 108 is fixed with a telescopic rod 107;

[0023] The detection and compensation device 2 includes a connecting column 201, both ends of the connecting column 201 are fixedly connected with side plates 202, the bottom ends of the side plates 202 are fixedly connected to the top of the telescopic rod 107, the outer walls of the side plates 202 are rotatably connected to the rotating connection between the connecting rod 1 105 and the connecting rod 2 106 on the same side, a sliding rod 205 is fixedly connected between the opposite surfaces of the two side plates 202, a servo motor 203 is fixedly connected to the side wall of one side of the side plate 202, the output end of the servo motor 203 passes through the inner wall of the side plate 202 and is fixedly connected with a positive and negative threaded rod 204, the outer wall of the positive and negative threaded rod 204 passes through the threaded connection with two displacement patches 206, the side walls of the sliding rod 205 all pass through the side walls of the displacement patches 206, and a stopper is welded on one side of the displacement patch 206 The mounting box 210 is welded at a position corresponding to the baffle plate 207 on one side of the other displacement patch 206, an infrared rangefinder 211 is placed inside the mounting box 210, a guide hole 212 is opened on one side of the mounting box 210, a collar 208 is welded on the top of the displacement patch 206, a displacement sensor 209 is sleeved inside the collar 208, a controller 3 is fixedly installed on the inner wall of one side plate 202, an input end of the displacement sensor 209 is electrically connected to an output end of the controller 3, input ends of the controller 3 and the infrared rangefinder 211 are both electrically connected to an output end of the AC power supply, data ends of the displacement sensor 209 and the infrared rangefinder 211 are data-connected to the controller 3, and the data end of the controller 3 is data-connected to the tool grinding device. Through the detection and compensation device 2 and the controller 3, the servo motor 203 drives the positive and negative threaded rods 204 to rotate, and cooperates with the slide bar 205 to drive the two displacement patches 206 to move towards each other, fit the two sides of the tool, and measure the distance between the tool and the installation box 210 through the infrared rangefinder 211. The thickness of the tool can be obtained by subtracting the two, and then the wear condition of the tool can be obtained. Then, through the action of the displacement sensor 209 inside the collar 208, when the tool moves between the two displacement patches 206, the detected signal can be transmitted to The controller 3 is inside and controls the tool grinding device through the controller 3 so as to enable real-time compensation and repair; through the set driving displacement device 1, the electric push rod 103 pushes the push plate 104 backward, drives the connecting rod 105 and the connecting rod 2 106 to rotate in coordination with each other, drives the side plate 202 to displace, and the sliding block 108 of the displacement sleeve of the side plate 202 cooperates with the sliding groove 1012 to slide and displace, and the telescopic rod 107 is telescopic to limit the displacement direction of the side plate 202, and finally the detection and compensation device 2 is transferred to the tool grinding device, so as to facilitate the detection of tool wear.

[0024] Working principle: When in use, the driving displacement device 1 is installed on the tool grinding device. When the tool needs to be inspected, the electric push rod 103 pushes the push plate 104 backward, driving the connecting rod 105 and the connecting rod 2 106 to rotate with each other, driving the side plate 202 to move, and the sliding block 108 cooperates with the sliding groove 1012 to slide and move, and the telescopic rod 107 is telescoped to limit the displacement direction of the side plate 202. Finally, the detection compensation device 2 is transferred to the tool grinding device, and the servo motor 203 drives the positive and negative threaded rods 204 to rotate. The movement cooperates with the slide bar 205 to drive the two displacement patches 206 to move towards each other, fit the two sides of the tool, and measure the distance between the tool and the mounting box 210 through the infrared rangefinder 211. By subtracting the two, the thickness of the tool can be obtained, and then the wear condition of the tool can be obtained. Then, through the action of the displacement sensor 209 inside the ring 208, when the tool moves between the two displacement patches 206, the detected signal can be transmitted to the controller 3, and the tool grinding device can be controlled by the controller 3 to compensate and repair in real time.

[0025] The embodiments of the present invention are described in detail above in conjunction with the accompanying drawings, but the present invention is not limited to the above embodiments, and various changes can be made within the knowledge scope of ordinary technicians in the relevant technical field without departing from the purpose of the present invention.

Claims

1. An automatic tool wear compensation device for a CNC machining center, characterized in that: include: A driving displacement device (1), wherein the driving displacement device (1) is drivingly connected to a detection compensation device (2); The driving displacement device (1) comprises two L-shaped mounting plates (101) arranged symmetrically on the left and right, the front sides of the two L-shaped mounting plates (101) are fixedly connected via a connecting plate (102), the side walls of the L-shaped mounting plates (101) are each provided with a sliding hole (1011), the inner wall of the sliding hole (1011) is slidably connected to a push plate (104), an electric push rod (103) is embedded and fixedly connected in the middle of the connecting plate (102), the movable end of the electric push rod (103) is fixedly connected to the front wall of the push plate (104), and the upper end of the push plate (104) is fixedly connected to the front wall of the push plate (104). Rotating blocks (1041) are provided on both sides of the surface, and the side walls of the rotating blocks (1041) are rotatably connected to the connecting rod 1 (105), and the inner side walls of the L-shaped mounting plate (101) are rotatably connected to the connecting rod 2 (106), and the top side walls of the connecting rod 1 (105) and the connecting rod 2 (106) on the same side are rotatably connected, and the upper surface of the bottom end of the L-shaped mounting plate (101) is provided with a sliding groove (1012), and the inner wall of the sliding groove (1012) is slidably connected to a sliding block (108), and the upper surface of the sliding block (108) is fixedly connected to a telescopic rod (107); The detection compensation device (2) comprises a connecting column (201), both ends of the connecting column (201) are fixedly connected to side plates (202), a sliding rod (205) is fixedly connected between the opposite surfaces of the two side plates (202), a servo motor (203) is fixedly connected to the side wall of one side of the side plate (202), the output end of the servo motor (203) passes through the inner wall of the side plate (202) and is fixedly connected to a positive and negative threaded rod (204), the outer wall of the positive and negative threaded rod (204) passes through the threaded connection to have two displacement patches (206), the sliding rod (205) ) penetrate the side walls of the displacement patch (206); a baffle (207) is welded on one side of the displacement patch (206); a mounting box (210) is welded on one side of the other displacement patch (206) at a position corresponding to the baffle (207); an infrared rangefinder (211) is placed inside the mounting box (210); a guide hole (212) is opened on one side of the mounting box (210); a collar (208) is welded on the top of the displacement patch (206); a displacement sensor (209) is sleeved inside the collar (208).

2. The automatic tool wear compensation device for a CNC machining center according to claim 1, characterized in that: A controller (3) is fixedly mounted on the inner wall of the side plate (202) at one side, the input end of the displacement sensor (209) is electrically connected to the output end of the controller (3), and the input ends of the controller (3) and the infrared rangefinder (211) are both electrically connected to the mains output end.

3. The automatic tool wear compensation device for a CNC machining center according to claim 2, characterized in that: The data ends of the displacement sensor (209) and the infrared rangefinder (211) are data-connected to the controller (3), and the data end of the controller (3) is data-connected to the tool grinding device.

4. The automatic tool wear compensation device for a CNC machining center according to claim 1, characterized in that: The bottom ends of the side plates (202) are fixedly connected to the top ends of the telescopic rods (107).

5. The automatic tool wear compensation device for a CNC machining center according to claim 1, characterized in that: The outer walls of the side plates (202) are rotatably connected to the rotatable connection points of the connecting rod 1 (105) and the connecting rod 2 (106) on the same side.

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