Plate surface flatness detection device

Abstract

The utility model discloses a plate surface flatness detection device which comprises a rack, a working platform is arranged on the rack, a lifting driving component is arranged on the rack, and a detection device is arranged on the rack and located above the working platform. The detection device comprises a moving frame, a probe, a swing part, a lifting block, a re-carving plate and a linear driving component, the re-carving plate is detachably fixed to the rack and located above the working platform, the moving frame is movably arranged on the rack and connected with the linear driving component, the probe can be arranged on the moving frame in an up-down telescopic mode, and the swing part is connected with the lifting block. The lifting block is vertically and movably arranged on the movable frame, the upper end of the probe movably abuts against the lower side of the lifting block, the at least two swing pieces are concentrically and rotationally arranged on the lifting block, and torsional springs are arranged at the rotating joints between the swing pieces and the lifting block. The length direction of the swing part and the plane of the lower side face of the re-carving plate form an inclined angle, and a pigment layer is arranged at the movable end of the swing part.

Description

Technical Field

[0001] The utility model particularly relates to a device for detecting the flatness of a plate surface. Background Art

[0002] Flatness. When processing or producing something, the surface is not absolutely flat. The difference between the unevenness and the absolute level is the flatness. Flatness detection is sometimes called frontality detection or coplanarity detection. In the process of sheet metal processing, the surface flatness of the sheet metal is usually detected by using a ruler and visual inspection. This detection method has human errors, poor detection accuracy, and is time-consuming and labor-intensive. In addition, the existing manual detection method has a slow detection speed, resulting in poor work efficiency.

[0003] To solve the above problems, Chinese patent announcement No. CN219736290U discloses a plate surface flatness detection system, including: a gantry, which plays a supporting and bearing role, and the plate can pass under the gantry; a linear laser source, the number of which is at least one and is arranged on the gantry, and the linear laser source is used to project a light source onto the surface of the plate; a detection camera, the number of which is equal to the linear laser source and is arranged on the gantry, the detection camera corresponds to the linear laser source one by one, and the detection camera is used to collect the light source image projected by the corresponding linear laser source on the surface of the plate; wherein the linear laser source is at least arranged so that: the light source projected by a single linear laser source can cover the width direction of the plate, or the light sources projected by multiple linear laser sources can jointly cover the width direction of the plate.

[0004] The above method requires multiple linear laser sources and detection cameras for detection, which greatly increases the production cost and cannot meet the use requirements.

[0005] Therefore, it is necessary to provide a plate surface flatness detection device to improve the above-mentioned problems. Utility Model Content

[0006] In view of the defects of the above-mentioned prior art, the technical problem to be solved by the utility model is: to provide a device for detecting the surface flatness of a plate.

[0007] A plate surface flatness detection device comprises a frame, a working platform is arranged on the frame, a lifting driving component capable of driving the working platform to move up and down is arranged on the frame, and a detection device is arranged on the frame above the working platform;

[0008] The detection device comprises a movable frame, a probe, a swinging member, a lifting block, a replica plate and a linear drive component. The replica plate is detachably fixed on the frame and is located above the working platform. The movable frame is movably arranged on the frame and is connected to the linear drive component. The movable frame is driven by the linear drive component to make a linear movement relative to the working platform. The probe can be telescopically arranged on the movable frame up and down. The lifting block is movably arranged on the movable frame up and down. The upper end of the probe movably contacts the lower side of the lifting block. The swinging member has at least two and they are respectively rotatably arranged on the lifting block in a concentric manner. A torsion spring is arranged at the rotating connection between the swinging member and the lifting block. The length direction of the swinging member is arranged at an inclined angle to the lower side plane of the replica plate. A pigment layer is arranged at the movable end of the swinging member, and the pigment layer contacts the replica plate with the swinging member.

[0009] In one embodiment, the swing member includes a first swing arm and a second swing arm, a first paint layer is provided at one end of the first swing arm, a second paint layer is provided at one end of the second swing arm, the first swing arm is U-shaped, the second swing arm is embedded in the first swing arm, and the colors of the first paint layer and the second paint layer are different.

[0010] In one embodiment, a gantry is provided on the movable frame, and vertical guide grooves are symmetrically provided on both sides of the gantry. The lifting block is movably arranged in the vertical guide grooves, and a first spring is abutted between the upper side of the lifting block and the inner top wall of the gantry. A limiting flange protrudes outwardly from one side of the lifting block, and the limiting flange abuts against one side of the swinging member to limit the swinging angle of the swinging member.

[0011] In one embodiment, a placement rack is provided on the frame above the movable rack, the placement rack has a hollow opening, the inner side of the hollow opening has a flange protruding outward along the contour edge, the replica plate is embedded in the hollow opening and supported by the flange.

[0012] In one embodiment, a pressure block is rotatably arranged on the placement rack, and the pressure block abuts against the upper side of the replica plate.

[0013] In one embodiment, a plurality of positioning pins are arranged at intervals on the working platform.

[0014] In one embodiment, a ball is movably embedded in the lower end of the probe.

[0015] In one embodiment, the lifting drive component is an electric push rod motor.

[0016] In one embodiment, the linear drive component is a linear motor.

[0017] In one embodiment, the pigment layer is a wax layer; the wax layer is composed of compressed chalk, pigment powder and a binder.

[0018] In summary, the beneficial effects of the present invention compared with the prior art are as follows:

[0019] The utility model places the plate to be detected on the working platform, and then the lifting driving component drives the working platform to rise at the beginning, so that the plate on the working platform keeps contacting with the probe. At this time, the probe rises due to the contact and abuts against the lifting block, so that the lifting block rises synchronously, and the swinging member rises with the lifting block and abuts against the replica plate, and then the paint layer of the swinging member abuts against the lower side surface of the replica plate. At this time, the linear driving component drives the moving frame to move, and the probe, the lifting block and the swinging member on the moving frame move accordingly. The paint layer of the swinging member keeps being applied to the abutting state of the replica plate, and the probe can move along with the upper surface of the plate while moving. It moves up and down. When the surface of the plate is tilted downward or concave, the probe will drop accordingly. At this time, the lifting block drops and breaks away from the interference with the swing part, so that the paint layer of the swing part breaks away from the interference with the replica plate. When the surface of the plate is tilted upward or has a convex bump, the probe will rise accordingly. At this time, the lifting block rises and causes the two swing parts to contact the replica plate at the same time, so that the paint layers of the two swing parts are respectively in conflict with the replica plate and smeared. In this way, the staff can intuitively know the flatness of the plate through the corresponding paint smeared on the replica plate, avoiding the high cost of using lasers and cameras, and meeting the requirements of mass production at a low cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a schematic diagram of the three-dimensional structure of a plate surface flatness detection device in one embodiment of the utility model;

[0021] Figure 2 This is one of the cross-sectional structural schematic diagrams of a plate surface flatness detection device in one embodiment of the utility model;

[0022] Figure 3 This is a second schematic cross-sectional structure diagram of a plate surface flatness detection device in one embodiment of the utility model;

[0023] Figure 4 It is a partial exploded schematic diagram of a plate surface flatness detection device in one embodiment of the utility model. DETAILED DESCRIPTION

[0024] The utility model is further described below in conjunction with the accompanying drawings and specific implementation methods:

[0025] like Figures 1 to 4The embodiment of the utility model shown preferably provides a plate surface flatness detection device, comprising a frame 1, a working platform 2 is arranged on the frame 1, a lifting driving component 3 capable of driving the working platform 2 to move up and down is arranged on the frame 1, and a detection device is arranged on the frame 1 above the working platform 2;

[0026] The detection device includes a moving frame 4, a probe 5, a swinging member 6, a lifting block 7, a replica plate 8 and a linear drive component 9. The replica plate 8 is detachably fixed on the frame 1 and is located above the working platform 2. The moving frame 4 is movably arranged on the frame 1 and is connected to the linear drive component 9. The moving frame 4 is driven by the linear drive component 9 to move linearly relative to the working platform 2. The probe 5 can be telescopically arranged on the moving frame 4 up and down. The lifting block 7 is movably arranged on the moving frame 4 up and down. The upper end of the probe 5 movably contacts the lower side of the lifting block 7. The swinging member 6 has at least two and they are respectively rotatably arranged on the lifting block 7 with the same center, and a torsion spring is arranged at the rotating connection between the swinging member 6 and the lifting block 7. The length direction of the swinging member 6 is arranged at an inclined angle to the lower side plane of the replica plate 8. A pigment layer 10 is arranged at the movable end of the swinging member 6, and the pigment layer 10 contacts the replica plate 8 with the swinging member 6.

[0027] Specifically, the plate to be inspected is placed on the working platform, and then the lifting drive component drives the working platform to rise initially, so that the plate on the working platform remains in contact with the probe. At this time, the probe is raised by the contact and is held against the lifting block, so that the lifting block rises synchronously, and the swing member rises with the lifting block and is in contact with the replica plate, and then the paint layer of the swing member is in contact with the lower surface of the replica plate. At this time, the linear driving component drives the moving frame to move, and the probe, lifting block and swing member on the moving frame move accordingly. The paint layer of the swing member remains in a state of being applied to the replica plate, and the probe can move with the upper surface of the plate while moving. It moves up and down. When the surface of the plate is tilted downward or concave, the probe will drop accordingly. At this time, the lifting block drops and breaks away from the interference with the swing part, so that the paint layer of the swing part breaks away from the interference with the replica plate. When the surface of the plate is tilted upward or has a convex bump, the probe will rise accordingly. At this time, the lifting block rises and causes the two swing parts to contact the replica plate at the same time, so that the paint layers of the two swing parts are respectively in conflict with the replica plate and smeared. In this way, the staff can intuitively know the flatness of the plate through the corresponding paint smeared on the replica plate, avoiding the high cost of using lasers and cameras, and meeting the requirements of mass production at a low cost.

[0028] Furthermore, the swing member 6 includes a first swing rod 61 and a second swing rod 62, a first pigment layer is disposed at one end of the first swing rod 61, a second pigment layer is disposed at one end of the second swing rod 62, the first swing rod 61 is U-shaped, the second swing rod 62 is embedded in the first swing rod 61, and the first pigment layer and the second pigment layer have different colors. Specifically, by applying different colors on the replica board, the flatness of the board can be intuitively known through the distribution of the applied colors on the replica board.

[0029] Furthermore, a gantry 41 is provided on the movable frame 4, and vertical guide grooves 42 are symmetrically provided on both sides of the gantry 41, and the lifting block 7 is movably provided in the vertical guide grooves 42, and a first spring 43 is abutted between the upper side of the lifting block 7 and the inner top wall of the gantry 41, and a limiting flange 44 is protruded on one side of the lifting block 7, and the limiting flange 44 abuts against one side of the swing member 6 to limit the swing angle of the swing member 6. Specifically, the limiting flange is used to make the length direction of the swing member initially inclined relative to the lower side plane of the replica plate, and then when the swing member moves upward with the lifting block under force, the first swing rod and the second swing rod of the swing member can abut against the replica plate one by one due to the inclination and length, thereby effectively realizing the separate application of the paint layer of the first swing rod and the second swing rod.

[0030] Furthermore, a placement rack 11 is provided on the frame 1 above the mobile rack 4, and the placement rack 11 has a hollow opening 12, and a flange 13 is protruded along the outer edge of the inner side of the hollow opening 12, and the replica board 8 is embedded in the hollow opening 12 and supported by the flange 13. Thus, the replica board is positioned, installed and placed, and the swinging member can contact the lower surface of the replica board through the hollow opening.

[0031] Furthermore, a pressing block 14 is rotatably provided on the placement frame 11, and the pressing block 14 abuts against the upper side of the replica board 8. Specifically, the replica board is installed and fixed by abutting against the pressing block.

[0032] Furthermore, a plurality of positioning pins 15 are arranged at intervals on the working platform 2. Specifically, the positioning pins are used to realize the installation and fixation of the plate.

[0033] Furthermore, a ball 16 is movably embedded at the lower end of the probe 5. The ball 16 contacts the surface of the plate to reduce friction and effectively avoid damage and wear on the surface of the plate.

[0034] Furthermore, the lifting drive component 3 is an electric push rod motor.

[0035] Furthermore, the linear driving component 9 is a linear motor.

[0036] Furthermore, the pigment layer 10 is a wax layer. The wax layer is made of compressed chalk, pigment powder and adhesive. The structure of the pigment layer is the same as that of a watercolor crayon, which will not be described in detail.

[0037] The above shows and describes the basic principle and main features of the utility model and the advantages of the utility model. The technicians in this industry should understand that the utility model is not limited by the above embodiments. The above embodiments and the description are only to illustrate the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model will have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection of the utility model is defined by the attached claims and their equivalents.

Claims

1. A plate surface flatness detection device, comprising a frame (1), wherein a working platform (2) is arranged on the frame (1), characterized in that: The frame (1) is provided with a lifting driving component (3) capable of driving the working platform (2) to move upward and downward, and the frame (1) is provided with a detection device located above the working platform (2); The detection device comprises a movable frame (4), a probe (5), a swinging member (6), a lifting block (7), a replica plate (8) and a linear driving member (9); the replica plate (8) is detachably fixed on a frame (1) and is located above a working platform (2); the movable frame (4) is movably arranged on the frame (1) and is connected to the linear driving member (9); the movable frame (4) is driven by the linear driving member (9) to move linearly relative to the working platform (2); the probe (5) is arranged on the movable frame (4) and can be telescopically moved up and down; the lifting block (7) The probe (5) is movably arranged on the movable frame (4) up and down, and the upper end of the probe (5) movably contacts the lower side of the lifting block (7). The swinging member (6) has at least two swinging members (6) which are respectively arranged on the lifting block (7) in a coaxially rotatable manner, and a torsion spring is arranged at the rotation connection between the swinging member (6) and the lifting block (7). The length direction of the swinging member (6) is arranged at an inclined angle to the lower side plane of the replica plate (8). A pigment layer (10) is arranged at the movable end of the swinging member (6), and the pigment layer (10) contacts the replica plate (8) as the swinging member (6) moves.

2. A plate surface flatness detection device according to claim 1, characterized in that: The swing member (6) comprises a first swing rod (61) and a second swing rod (62); a first pigment layer is arranged at one end of the first swing rod (61); a second pigment layer is arranged at one end of the second swing rod (62); the first swing rod (61) is arranged in a U-shaped shape; the second swing rod (62) is embedded in the first swing rod (61); and the first pigment layer and the second pigment layer have different colors.

3. A plate surface flatness detection device according to claim 1, characterized in that: The movable frame (4) is provided with a gantry (41), and vertical guide grooves (42) are symmetrically provided on both sides of the gantry (41), and the lifting block (7) is movably arranged in the vertical guide groove (42). A first spring (43) is abutted between the upper side of the lifting block (7) and the inner top wall of the gantry (41), and a limiting flange (44) is protruded outwardly on one side of the lifting block (7), and the limiting flange (44) abuts against one side of the swinging member (6) to limit the swinging angle of the swinging member (6).

4. A plate surface flatness detection device according to claim 1, characterized in that: A placement rack (11) is arranged on the frame (1) above the moving rack (4), the placement rack (11) has a hollow opening (12) inside, a flange (13) is protruded outward along the contour edge of the inner side of the hollow opening (12), and the replica plate (8) is embedded in the hollow opening (12) and supported by the flange (13).

5. A plate surface flatness detection device according to claim 4, characterized in that: A pressing block (14) is rotatably arranged on the placement frame (11), and the pressing block (14) abuts against the upper side of the replica plate (8).

6. A plate surface flatness detection device according to claim 1, characterized in that: A plurality of positioning pins (15) are arranged at intervals on the working platform (2).

7. A plate surface flatness detection device according to claim 1, characterized in that: A ball (16) is movably embedded at the lower end of the probe (5).

8. A plate surface flatness detection device according to claim 1, characterized in that: The lifting drive component (3) is an electric push rod motor.

9. A plate surface flatness detection device according to claim 1, characterized in that: The linear driving component (9) is a linear motor.

10. The plate surface flatness detection device according to claim 1, characterized in that: The pigment layer (10) is a wax layer.

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