A tool wear monitoring device for a five-axis machining center

Abstract

The utility model provides a kind of cutter wear monitoring device for five-axis machining center, belong to machining center technical field, including monitoring component, including base, fixedly connected in the side wall of base support plate, slidingly connected in the side wall of support plate end portion side wall moving plate, slidingly inserted in the side wall of moving plate connecting plate and fixedly connected in the end of connecting plate detection head;Positioning assembly, including fixedly connected in the side wall of base support seat, fixedly connected in the side wall of support seat positioning block, fixedly connected in the side wall of support seat limiting plate and slidingly connected in the side wall of support seat sleeve tube.The utility model has the beneficial effects that: monitoring component passes through two-stage adjusting structure, realizes the multidimensional accurate alignment of detection head, ensures that detection direction and cutter wear surface are perpendicular, avoids the detection error caused by angle deviation;The cambered surface structure of positioning block adapts different diameter cutters, ensures that cutter is not loose after clamping, maintains the relative position stability of detection head and cutter, reduces monitoring error.

Description

Technical Field

[0001] This utility model belongs to the field of machining center technology, specifically relating to a tool wear monitoring device for a five-axis machining center. Background Technology

[0002] First paragraph: background technology.

[0003] The second paragraph discusses the problems with existing technology and how to solve them. Utility Model Content

[0004] The purpose of this invention is to provide a tool wear monitoring device for a five-axis machining center, which aims to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: A tool wear monitoring device for a five-axis machining center, comprising, The monitoring component includes a base, a support plate fixedly connected to the side wall of the base, a movable plate slidably connected to the end side wall of the support plate, a connecting plate slidably inserted into the side wall of the movable plate, and a detection head fixedly connected to the end of the connecting plate. The positioning assembly includes a support fixedly connected to the side wall of the base, a positioning block fixedly connected to the side wall of the support, a limiting plate fixedly connected to the side wall of the support, and a sleeve slidably connected to the side wall of the support. The limiting plate and the sleeve are symmetrically arranged at both ends of the support. The end of the positioning block has an arc surface structure, and the positioning block is located below the detection head.

[0006] In a preferred embodiment of this utility model, a guide plate is fixedly connected to the side wall of the support base, the end of the sleeve is inserted into the center of the guide plate, and the bottom of the guide plate is fixedly connected to the side wall of the base.

[0007] In a preferred embodiment of this utility model, an elbow clamp is fixedly connected to the side wall of the base, and the end of the elbow clamp is fixedly connected to the side wall of the sleeve.

[0008] In a preferred embodiment of this utility model, a positioning seat is fixedly connected to the side wall of the movable plate, and a sensor mounting shell is fixedly connected to the side wall of the positioning seat, with the end of the sensor mounting shell extending above the connecting plate.

[0009] In a preferred embodiment of this utility model, a lead screw is threadedly connected to the side wall of the positioning seat, the lower end of the lead screw is threadedly connected to the side wall of the connecting plate, a handle is installed at the upper end of the lead screw, and a limiting post is installed inside the central groove of the connecting plate and fixedly connected to the moving plate.

[0010] In a preferred embodiment of this utility model, a vertical plate is fixedly connected to the side wall of the base, a turntable is rotatably mounted on the end side wall of the vertical plate, a pull rod is hinged to the side wall of the turntable, and the end of the pull rod is hinged to the side wall of the movable plate.

[0011] In a preferred embodiment of this utility model, a motor is fixedly connected to the side wall of the upright plate, and the end of the motor output shaft is fixedly connected to the end of the central shaft of the turntable.

[0012] Compared with the prior art, the beneficial effects of this utility model are: the monitoring component achieves multi-dimensional precise alignment of the detection head through a two-stage adjustment structure, ensuring that the detection direction is perpendicular to the tool wear surface and avoiding detection errors caused by angular deviation; the arc-shaped structure of the positioning block is adapted to tools of different diameters, ensuring that the tool is clamped without loosening, maintaining the relative position of the detection head and the tool is stable, and reducing monitoring errors. Attached Figure Description

[0013] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort. Wherein: Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a side view perspective three-dimensional structural diagram of the present invention; Figure 3 This is a front structural diagram of the present invention; Figure 4 This is a side view of the present invention.

[0014] In the diagram: 100, Monitoring component; 101, Base; 102, Support plate; 103, Moving plate; 104, Connecting plate; 105, Detection head; 106, Positioning seat; 107, Sensor mounting shell; 108, Lead screw; 109, Vertical plate; 110, Turntable; 111, Pull rod; 112, Motor; 200, Positioning component; 201, Support seat; 202, Positioning block; 203, Limiting plate; 204, Sleeve; 205, Guide plate; 206, Elbow clamp. Detailed Implementation

[0015] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings.

[0016] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Those skilled in the art can make similar extensions without departing from the spirit of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0017] Secondly, the term "an embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The phrase "in one embodiment" appearing in different places in this specification does not necessarily refer to the same embodiment, nor is it a single or selective embodiment that excludes other embodiments.

[0018] Example Reference Figure 1-4 This embodiment of the present invention provides a tool wear monitoring device for a five-axis machining center, comprising: The monitoring component 100 includes a base 101, a support plate 102 fixedly connected to the side wall of the base 101, a movable plate 103 slidably connected to the end side wall of the support plate 102, a connecting plate 104 slidably inserted into the side wall of the movable plate 103, and a detection head 105 fixedly connected to the end of the connecting plate 104. The positioning component 200 includes a support base 201 fixedly connected to the side wall of the base 101, a positioning block 202 fixedly connected to the side wall of the support base 201, a limiting plate 203 fixedly connected to the side wall of the support base 201, and a sleeve 204 slidably connected to the side wall of the support base 201. The limiting plate 203 and the sleeve 204 are symmetrically arranged at both ends of the support base 201. The end of the positioning block 202 has an arc surface structure, and the positioning block 202 is located below the detection head 105.

[0019] The monitoring component 100 achieves precise positioning of the detection head 105 through a multi-stage sliding adjustment structure, ensuring that the detection direction is perpendicular to the tool wear surface. The base 101 provides an installation reference for the entire device. The support plate 102 provides a horizontal sliding track for the moving plate 103, forming the basis for adjusting the horizontal position of the detection head 105. The connecting plate 104 slides up and down through the sliding groove on the side wall of the moving plate 103. The detection head 105 (which can integrate a laser sensor or an image acquisition device) moves synchronously with the connecting plate 104, realizing two-dimensional "horizontal + vertical" position adjustment of the detection head. The positioning component 200 is used to stably fix the tool to be detected below the detection head 105, ensuring... During the inspection, the tool does not wobble, providing a stable benchmark for wear detection. The end of the positioning block 202 has an arc-shaped structure (the radius of the arc matches the diameter of the commonly used tool shank), which can be adapted to tools of different diameters (such as milling cutters and drill bits) to achieve radial positioning of the tool. The support base 201 is symmetrically equipped with a limiting plate 203 and a sleeve 204 at both ends. The limiting plate 203 is a fixed baffle (rigidly connected to the support base 201), and the sleeve 204 can slide along the side wall of the support base 201. The two work together to clamp the tool axially, preventing the tool from moving axially during the inspection. At the same time, the sleeve 204 has a hollow structure, which can protect the tool head and prevent damage to the tool head, while also preventing the staff from accidentally touching the tool head.

[0020] Specifically, a guide plate 205 is fixedly connected to the side wall of the support base 201, the end of the sleeve 204 is inserted into the center of the guide plate 205, the bottom of the guide plate 205 is fixedly connected to the side wall of the base 101, an elbow clamp 206 is fixedly connected to the side wall of the base 101, and the end of the elbow clamp 206 is fixedly connected to the side wall of the sleeve 204.

[0021] The guide plate 205 on the side wall of the support base 201 (fixed to the base 101 at the bottom) provides sliding guidance for the sleeve 204 (the end of the sleeve 204 is embedded in the central groove of the guide plate 205), ensuring that its sliding direction is consistent with the axial direction of the tool; the end of the elbow clamp 206 on the side wall of the base is fixed to the sleeve 204, and the elbow clamp 206 can be moved to drive the sleeve 204 to slide along the guide plate 205, thereby clamping / releasing the tool, and the self-locking characteristic of the elbow clamp 206 can ensure that there is no loosening after clamping (the clamping force is stable).

[0022] Furthermore, a positioning seat 106 is fixedly connected to the side wall of the movable plate 103, and a sensor mounting shell 107 is fixedly connected to the side wall of the positioning seat 106. The end of the sensor mounting shell 107 extends above the connecting plate 104.

[0023] The sensor mounting housing 107 is used to install displacement sensors or runout sensors, etc., to cooperate with the detection of the displacement status of the connecting plate 104 and improve the tool monitoring accuracy.

[0024] Preferably, the positioning seat 106 has a threaded connection to a lead screw 108 on its side wall, the lower end of the lead screw 108 is threaded to the side wall of the connecting plate 104, a handle is installed on the upper end of the lead screw 108, and a limiting post is installed on the inner side of the central slide groove of the connecting plate 104, which is fixedly connected to the moving plate 103.

[0025] The lower end of the lead screw 108, which is threaded to the side wall of the positioning seat 106, is threaded to the connecting plate 104. The handle at the upper end can be rotated manually, and the connecting plate 104 is driven to slide up and down through the lead screw 108 (the accuracy depends on the pitch of the lead screw 108, and the position is locked by utilizing the self-locking property of the threaded transmission). The limiting post (fixed to the moving plate) in the central groove of the connecting plate 104 restricts its sliding trajectory and prevents deviation.

[0026] Preferably, a vertical plate 109 is fixedly connected to the side wall of the base 101, and a turntable 110 is rotatably mounted on the end side wall of the vertical plate 109. A pull rod 111 is hinged to the side wall of the turntable 110, and the end of the pull rod 111 is hinged to the side wall of the movable plate 103. A motor 112 is fixedly connected to the side wall of the vertical plate 109, and the end of the output shaft of the motor 112 is fixedly connected to the end of the central shaft of the turntable 110.

[0027] The upright plate 109 on the side wall of the base 101 provides a mounting seat for the motor 112. The output shaft of the motor is fixedly connected to the central shaft of the turntable 110. The other end of the pull rod 111, which is hinged to the edge of the turntable, is hinged to the side wall of the moving plate 103, forming a "motor-turntable-pull rod" crank-slider mechanism. When the motor 112 drives the turntable 110 to rotate, the pull rod 111 pulls the moving plate 103 to slide horizontally back and forth along the support plate 102, thereby realizing the automatic horizontal position adjustment of the detection head 105.

[0028] In use, the shank of the tool to be tested (such as a milling cutter or boring cutter) is placed in the arc-shaped groove of the positioning block 202, and one axial end of the tool is pressed against the limiting plate 203 (the end of the limiting plate is in contact with the stepped surface of the tool shank) to achieve initial positioning; the elbow clamp 206 is moved to drive the sleeve 204 to slide along the guide plate 205 towards the tool until the end of the sleeve is in contact with the other end of the tool. Through the bidirectional clamping of the limiting plate and the sleeve, the tool is fixed on the support base 201 (after clamping, the tool does not wobble radially or move axially).

[0029] The motor 112 is started, and its output shaft drives the turntable 110 to rotate. The turntable pulls the moving plate 103 horizontally along the support plate 102 via the hinged pull rod 111 until the detection head 105 is directly in front of the tool wear area (such as the tool edge or shank wear surface). If fine adjustment is required, the motor can be turned off and the moving plate can be manually pushed to achieve precise alignment. The screw 108 handle on the rotating positioning seat 106 drives the connecting plate 104 to slide up and down along the moving plate 103 through threaded transmission, adjusting the height of the detection head 105 so that the detection direction of the detection head (such as the laser emission direction or image acquisition direction) is perpendicular to the tool wear surface (ensuring no angular deviation in the detection data). After adjustment, the self-locking characteristic of the screw can lock the position of the connecting plate.

[0030] The detection head 105 (such as a laser sensor) emits a detection signal (laser beam) to the tool wear area. The signal is received by the detection head after being reflected by the wear surface. By analyzing the intensity and phase change of the reflected signal (or the wear profile of the image acquisition), the wear amount of the tool (such as the amount of edge dulling and the wear depth of the shank) is calculated. During the monitoring process, the rigid fixation of the positioning component ensures that the tool does not move, and the stable adjustment of the monitoring component ensures that the relative position of the detection head and the wear surface remains unchanged, thus ensuring the consistency of the detection data.

[0031] In summary, the monitoring component, through a two-stage adjustment structure, achieves multi-dimensional precise alignment of the detection head, ensuring the detection direction is perpendicular to the tool wear surface and avoiding detection errors caused by angular deviations. The arc-shaped structure of the positioning block adapts to tools of different diameters, and the bidirectional clamping of the limiting plate and sleeve ensures no tool movement, further improving the reliability of the detection data. It can meet the detection needs of different tool specifications without replacing the positioning components, improving adaptability and ensuring no loosening after tool clamping. Even in a vibrating workshop environment, it can maintain a stable relative position between the detection head and the tool, reducing monitoring errors. It can be directly fixed to the tool change station of a five-axis machining center, realizing the linkage of "tool change - automatic detection" and improving detection efficiency.

[0032] It is important to note that the constructions and arrangements of this application shown in several different exemplary embodiments are merely illustrative. Although only a few embodiments are described in detail in this disclosure, those who consult this disclosure will readily understand that many modifications are possible (e.g., changes in the size, dimensions, structure, shape and proportion of various elements, as well as parameter values ​​(e.g., temperature, pressure, etc.), mounting arrangements, use of materials, color, orientation, etc.) without substantially departing from the novel teachings and advantages of the subject matter described in this application). For example, an element shown as integrally formed may be composed of multiple parts or elements, the position of elements may be inverted or otherwise altered, and the nature or number or position of discrete elements may be changed or altered. Therefore, all such modifications are intended to be included within the scope of this utility model. The order or sequence of any process or method steps may be changed or rearranged according to alternative embodiments. In the claims, any "device plus function" clause is intended to cover the structure described herein that performs the function, and not only structural equivalents but also equivalent structures. Without departing from the scope of this invention, other substitutions, modifications, alterations, and omissions may be made in the design, operation, and arrangement of the exemplary embodiments. Therefore, this invention is not limited to the specific embodiments, but extends to various modifications that still fall within the scope of the appended claims.

[0033] Furthermore, in order to provide a concise description of exemplary embodiments, not all features of actual embodiments (i.e., those features that are not relevant to the best mode of carrying out the present invention as currently considered, or those features that are not relevant to implementing the present invention) may be omitted.

[0034] It should be understood that numerous specific implementation decisions can be made during the development of any practical implementation, such as in any engineering or design project. Such development efforts may be complex and time-consuming, but for those skilled in the art who benefit from this disclosure, the development effort will be a routine work of design, manufacturing, and production without requiring much experimentation.

[0035] It should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solution of this utility model without departing from the spirit and scope of the technical solution of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.

Claims

1. A tool wear monitoring device for a five-axis machining center, characterized in that: include, The monitoring component (100) includes a base (101), a support plate (102) fixedly connected to the side wall of the base (101), a movable plate (103) slidably connected to the end side wall of the support plate (102), a connecting plate (104) slidably inserted into the side wall of the movable plate (103), and a detection head (105) fixedly connected to the end of the connecting plate (104). The positioning assembly (200) includes a support base (201) fixedly connected to the side wall of the base (101), a positioning block (202) fixedly connected to the side wall of the support base (201), a limiting plate (203) fixedly connected to the side wall of the support base (201), and a sleeve (204) slidably connected to the side wall of the support base (201). The limiting plate (203) and the sleeve (204) are symmetrically arranged at both ends of the support base (201). The end of the positioning block (202) is an arc surface structure. The positioning block (202) is located below the detection head (105).

2. A tool wear monitoring device for a five-axis machining center according to claim 1, characterized in that: The support base (201) has a guide plate (205) fixedly connected to its side wall. The end of the sleeve (204) is inserted into the center of the guide plate (205). The bottom of the guide plate (205) is fixedly connected to the side wall of the base (101).

3. A tool wear monitoring device for a five-axis machining center according to claim 2, characterized in that: An elbow clamp (206) is fixedly connected to the side wall of the base (101), and the end of the elbow clamp (206) is fixedly connected to the side wall of the sleeve (204).

4. A tool wear monitoring device for a five-axis machining center according to claim 3, characterized in that: The moving plate (103) is fixedly connected to a positioning seat (106) on its side wall, and a sensor mounting shell (107) is fixedly connected to the side wall of the positioning seat (106). The end of the sensor mounting shell (107) extends above the connecting plate (104).

5. The tool wear monitoring device for a five-axis machining center according to claim 4, characterized in that: The positioning seat (106) is threaded with a lead screw (108) on its side wall. The lower end of the lead screw (108) is threaded with the side wall of the connecting plate (104). A handle is installed on the upper end of the lead screw (108). A limiting post is installed on the inner side of the central groove of the connecting plate (104) and is fixedly connected to the moving plate (103).

6. A tool wear monitoring device for a five-axis machining center according to claim 5, characterized in that: The base (101) has a fixedly connected upright plate (109) on its side wall. A turntable (110) is rotatably mounted on the end side wall of the upright plate (109). A pull rod (111) is hinged to the side wall of the turntable (110). The end of the pull rod (111) is hinged to the side wall of the movable plate (103).

7. A tool wear monitoring device for a five-axis machining center according to claim 6, characterized in that: A motor (112) is fixedly connected to the side wall of the upright plate (109), and the end of the output shaft of the motor (112) is fixedly connected to the end of the central shaft of the turntable (110).

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