A contact type precision detection device
By designing contact precision detection equipment, using the combination of linear modules and magnetic grid components, the existing equipment has high environmental requirements and slow speeds, and has achieved rapid precision detection under low environmental conditions to meet the full inspection requirements on the processing site.
Patent Information
- Application Number
- CN202421583025.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-05
- Publication Date
- 2025-04-08
- Estimated Expiration
- 2034-07-05
AI Technical Summary
The existing three-dimensional detection equipment has high requirements for ambient temperature and humidity, and is slower in speed, which cannot meet the needs of full inspection on the processing site.
A contact precision detection device is designed, including a Y-direction linear module, an X-direction linear module and a Z-direction linear module. The movement of the module is controlled through the magnetic gate assembly, and combined with product fixtures and detection probes, the product positioning and precision detection are achieved.
The equipment can quickly conduct precision inspection under low environmental conditions, meet the full inspection requirements of the processing site, while improving the inspection accuracy and speed and reducing production costs.
Smart Images
Figure CN222733520U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of automatic detection equipment, and in particular relates to a contact type precision detection equipment. Background Art
[0002] The processing of 3C related products such as mobile phone frames and notebook shells requires high precision. The processed products need to be fully inspected for relevant dimensions before entering the next process, such as Figure 1 Product 1 in the figure is a flat shell. Commonly used three-dimensional detection equipment (three-dimensional detection mainly refers to a precision detection technology using a three-dimensional coordinate measuring machine (CMM). This detection technology can move the detector on three mutually perpendicular guide rails within the space of a hexahedron, transmit signals in a contact or non-contact manner, and calculate the coordinates of each point (X, Y, Z) of the workpiece and various functional detection instruments through a data processor or computer) can meet the requirements for product size detection, but the three-dimensional equipment has high requirements for environmental temperature and humidity, and the speed is relatively slow, which cannot meet the needs of full inspection on the processing site. Utility Model Content
[0003] In order to solve the technical problems existing in the prior art, the present application provides a contact-type precision detection equipment which has low requirements on the detection environment, fast detection speed and can meet the requirements of full inspection at the processing site.
[0004] In order to achieve the above purpose, the utility model provides the following technical solutions:
[0005] A contact-type precision detection device comprises a frame, a Y-axis linear module is arranged at the upper end of the frame, a product fixture is fixedly connected to the moving part of the Y-axis linear module, and the product fixture is used to position and fix the product; a support frame is arranged at the upper end of the frame, an X-axis linear module is arranged on the support frame perpendicular to the Y-axis linear module, a vertically arranged Z-axis linear module is fixedly connected to the moving part of the X-axis linear module, and a detection probe is fixedly connected to the moving part of the Z-axis linear module; magnetic grid components are arranged on the X-axis linear module, the Y-axis linear module and the Z-axis linear module, and a controller controls the movement position of the moving parts of the X-axis linear module, the Y-axis linear module and the Z-axis linear module through the magnetic grid components.
[0006] Preferably, the product fixture comprises a bottom plate fixedly connected to the moving part of the Y-axis linear module, and a profiling plate fixedly connected to the bottom plate, wherein a cavity is provided inside the profiling plate, and the cavity of the profiling plate is connected to the vacuum generating device through an air nozzle;
[0007] A plurality of vent holes communicating with the internal cavity of the profiling plate are provided on the upper surface of the profiling plate, and a sealing ring is embedded on the upper surface of the profiling plate outside the vent holes.
[0008] Preferably, a plurality of positioning pins are fixedly connected to the upper end surface of the profiling plate, and the space enclosed by each of the positioning pins matches the shape of the product.
[0009] Preferably, a buffer pad is embedded on the upper end surface of the contoured plate between the vent hole and the positioning pin.
[0010] Preferably, a plurality of ventilation grooves are provided on the upper surface of the profiling plate, and the ventilation grooves are connected to the ventilation holes.
[0011] Preferably, the magnetic grid assembly includes a magnetic grid scale fixedly connected to the housing of the X-axis linear module, the Y-axis linear module and the Z-axis linear module, and a magnetic head fixedly connected to the moving parts of the X-axis linear module, the Y-axis linear module and the Z-axis linear module.
[0012] Preferably, a connecting frame is fixedly connected to the moving part of the X-axis linear module, a counterweight block is vertically slidably connected to the connecting frame, a crossbeam is fixedly connected to the connecting frame, a roller is rotatably connected to the crossbeam, one end of the connecting line is fixedly connected to the counterweight block and the other end thereof is passed through the roller groove of the roller and then connected to the moving part of the Z-axis linear module.
[0013] Preferably, two groups of the Y-axis linear modules and the corresponding product fixtures are arranged in parallel.
[0014] Compared with the prior art, the beneficial effects of the utility model are:
[0015] The utility model can realize the positioning and fixing of the product by setting the product fixture; can quickly detect the corresponding position of the product by setting the X-axis linear module, the Y-axis linear module and the Z-axis linear module; can improve the movement accuracy of the X-axis linear module, the Y-axis linear module and the Z-axis linear module by setting the magnetic grid assembly in the X-axis linear module, the Y-axis linear module and the Z-axis linear module, thereby improving the detection accuracy; compared with the prior art, the utility model is safe and reliable, stable and efficient, simple to operate, can adapt to complex on-site environments, meet the full inspection of on-site production, and also reasonably reduce the production cost; by using a contact detection probe, the authenticity and reliability of the detection value are effectively improved.
[0016] In addition, the product fixture of the utility model adopts a vacuum adsorption mechanism, which not only facilitates the rapid fixing of the product, but also effectively avoids the obstruction of the upper end surface of the product and avoids affecting the product detection; by setting a counterweight block, connecting wires, and rollers, the influence of the moving parts of the Z-axis linear module and the gravity of the detection probe on the movement speed and accuracy of the Z-axis linear module is reduced. BRIEF DESCRIPTION OF THE DRAWINGS
[0017] Figure 1This is a schematic diagram of the structure of the product tested by the utility model.
[0018] Figure 2 It is a schematic diagram of the overall structure of the utility model.
[0019] Figure 3 This is a schematic diagram of the structure of the utility model after the frame is removed.
[0020] Figure 4 It is a schematic diagram of the connection structure of the support frame, X-axis linear module, Z-axis linear module and detection probe of the utility model.
[0021] Figure 5 It is a schematic diagram of the connection structure between the Z-axis linear module and the detection probe of the utility model.
[0022] Figure 6 It is a schematic diagram of the connection structure of the Y-axis linear module and the product fixture of the utility model.
[0023] Figure 7 It is a structural schematic diagram of the product fixture of the utility model.
[0024] In the figure: 1. product, 2. frame, 3. Y-axis linear module, 4. product fixture, 41. base plate, 42. contour plate, 43. air nozzle, 44. vent, 45. sealing ring, 46. positioning pin, 47. buffer pad, 48. ventilation groove, 5. support frame, 6. X-axis linear module, 61. connecting frame, 62. counterweight, 63. beam, 64. roller, 7. Z-axis linear module, 8. detection probe, 81. probe, 82. probe, 9. magnetic grid assembly, 91. magnetic grid scale, 92. magnetic head. DETAILED DESCRIPTION
[0025] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of them. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.
[0026] In the description of the present invention, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inside", "outside", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as a limitation on the present invention. Example
[0027] See attached Figure 2 , 3 As shown in Figure 4, a contact-type precision detection equipment includes a frame 2, on the upper end surface of the frame 3, a Y-direction linear module 3 is fixedly installed along the Y direction, and a product fixture 4 is fixedly connected to the moving part of the Y-direction linear module 3, and the product fixture 4 is used to position and fix the product 1. A support frame 5 is fixedly installed on the upper end of the frame 2 by bolts, and an X-direction linear module 6 is fixedly installed on the support frame 5 perpendicular to the Y-direction linear module 3, a vertically arranged Z-direction linear module 7 is fixedly installed on the moving part of the X-direction linear module 6, and a detection probe 8 is fixedly installed on the moving part of the Z-direction linear module 7. A magnetic grid assembly 9 is provided on the X-direction linear module 6, the Y-direction linear module 3 and the Z-direction linear module 7, and the controller controls the movement positions of the moving parts of the X-direction linear module 6, the Y-direction linear module 3 and the Z-direction linear module 7 respectively through the magnetic grid assembly 9.
[0028] The detection probe 8 is an existing wired detection sensor, which includes a probe 81 fixedly mounted on the moving part of the Z-axis linear module and a probe 82 mounted on the probe 81. Its specific working principle is the existing technology and will not be repeated here.
[0029] It should be noted that, in this embodiment, the "Z direction" is the vertical direction, the "X direction" is the direction along the length direction of the support frame 5 and perpendicular to the Y-direction linear module 3, and the "Y direction" is the horizontal direction perpendicular to the length direction of the support frame 5. Figure 2 , 3 The X, Y and Z directions indicated in FIG.
[0030] Specifically, the X-axis linear module 6 , the Y-axis linear module 3 , and the Z-axis linear module 7 may all be screw drive modules driven by high-precision linear motors.
[0031] The magnetic grid assembly 9 includes a magnetic grid scale 91 fixedly mounted on the housing of the X-axis linear module 6, the Y-axis linear module 3 and the Z-axis linear module 7, and a magnetic head 92 fixedly mounted on the moving parts of the X-axis linear module 6, the Y-axis linear module 3 and the Z-axis linear module 7. The controller can use an existing PLC controller, which is electrically connected to and controls each magnetic grid assembly 9. The moving position of the moving parts of the X-axis linear module 6, the Y-axis linear module 3 and the Z-axis linear module 7 is subdivided by the magnetic grid scale 91 on the X-axis linear module 6, the Y-axis linear module 3 and the Z-axis linear module 7 and fed back to the linear motor, which is then closed-loop fed back to the PLC controller by the linear motor. The difference between the two position coordinates is calculated by the PLC controller, thereby realizing the detection of the object to be measured, wherein the subdivision accuracy of the magnetic grid scale 91 is 0.1μm. The working principle of the magnetic grid assembly 9 is the existing technology and will not be repeated here.
[0032] For further information, see Figure 4 As shown, a vertically arranged connecting frame 61 is fixedly installed on the moving part of the X-axis linear module 6 by bolts, a counterweight block 62 is vertically slidably connected to the side of the connecting frame 61 away from the Z-axis linear module 7 by a slide rail slider structure, a crossbeam 63 is fixedly connected to the connecting frame 61 by bolts, and a roller 64 is rotatably connected to the crossbeam 63, one end of a connecting line (not shown in the figure) is fixedly connected to the counterweight block 62 and the other end thereof is inserted into the roller groove of the roller 64 and then connected to the moving part of the Z-axis linear module 7.
[0033] See also Figure 6 , 7 As shown, the product fixture 4 includes a bottom plate 41 fixedly connected to the moving part of the Y-axis linear module 3 by bolts, and a horizontally arranged profiling plate 42 fixedly connected to the bottom plate 41 by bolts. The profiling plate 42 is provided with a cavity inside. The cavity of the profiling plate 42 is connected to a vacuum generating device (not shown) through an air nozzle 43. The vacuum generating device can be an existing vacuum generator. A plurality of vents 44 connected to the internal cavity are provided on the upper end surface of the profiling plate 42, and a sealing ring 45 is embedded on the upper end surface of the profiling plate 42 outside the vents 44.
[0034] Furthermore, in order to facilitate the positioning of the product 1, a plurality of positioning pins 46 are fixedly embedded on the upper end surface of the contour plate 42. The space enclosed by each positioning pin 46 matches the shape of the product 1, so that the product 1 can be embedded in the space enclosed by the positioning pins 46, thereby positioning the product 1.
[0035] Furthermore, a buffer pad 47 is embedded on the upper end surface of the contour plate 42 between the vent hole 44 and the positioning pin 46 to prevent the end surface of the product 1 from being bumped when the product 1 is placed.
[0036] Furthermore, in order to improve the adsorption effect of the profiling plate 42 on the product 1 , a plurality of ventilation grooves 48 are provided on the upper end surface of the profiling plate 42 , and the ventilation grooves 48 are connected to the ventilation holes 44 .
[0037] Furthermore, in order to improve the detection efficiency, two groups of Y-axis linear modules 3 and corresponding product fixtures 4 are arranged in parallel, which can be divided into a left station and a right station. When the product 1 on a certain station is inspected, the product can be placed on the contour plate 42 of another station.
[0038] The working process of the utility model is as follows:
[0039] 1. Place the product to be tested
[0040] Place the product 1 to be tested on the contour plate 42 inside the positioning pin 46 (taking the left station as an example), press the adsorption start button (not shown in the figure), start the corresponding vacuum generating device, and press the product 1 by hand to ensure that the product is adsorbed on the contour plate 42.
[0041] 2. Start operation
[0042] Press the detection start button (not shown in the figure) and the device will start running the detection.
[0043] 3. Testing process
[0044] The detection process is run in accordance with the program and calibration sequence. When each point runs until the probe 82 touches the product 1, the controller will receive the signal to stop the linear motors corresponding to the X-axis linear module 6, the Y-axis linear module 3 and the Z-axis linear module 7, and record the current position coordinates at the same time; the specific detection process is: the Z-axis linear module 7 drives the probe 81 and the probe 82. When the probe 82 touches the product 1, the corresponding linear motor stops moving, and the controller records the current position coordinates.
[0045] 4. Calculate output
[0046] After all points are detected, the controller calculates and outputs the detection value of each point and displays it on the touch screen and display (not shown in the figure). At the same time, the controller compares the difference between the detection result and the standard value to see if it is within the required tolerance range. If it is within the range, it is OK, and if it is outside the range, it is NG. If it is NG, the buzzer sounds, indicating that the product size is NG.
[0047] 5. End of test
[0048] After the inspection is completed, the product fixture 4 returns to the initial position, and the vacuum generating device is turned off. The operator takes out the product 1 and places it in the corresponding position.
[0049] 6. Double-station operation
[0050] The startup of the two workstations will not affect each other. After one workstation is completed, the waiting workstation will automatically start testing, achieving 100% utilization of the equipment.
[0051] It should be noted that the connection method and control principle between the controller and the X-axis linear module 6, the Y-axis linear module 3, the Z-axis linear module 7, the magnetic grid assembly 9, the detection probe 8 and other components are existing technologies. As long as the above process can be achieved, what the utility model claims to protect is the relevant structure in this embodiment. The specific detection principles and detection procedures are existing technologies and will not be repeated here.
[0052] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.
Claims
1. A contact type precision detection device, comprising a frame, characterized in that: A Y-axis linear module is arranged at the upper end of the frame, and a product fixture is fixedly connected to the moving part of the Y-axis linear module, and the product fixture is used to position and fix the product; A support frame is arranged at the upper end of the frame, an X-direction linear module is arranged on the support frame perpendicular to the Y-direction linear module, a vertically arranged Z-direction linear module is fixedly connected to the moving part of the X-direction linear module, and a detection probe is fixedly connected to the moving part of the Z-direction linear module; The X-axis linear module, the Y-axis linear module and the Z-axis linear module are all provided with magnetic grid components, and the controller controls the movement position of the moving parts of the X-axis linear module, the Y-axis linear module and the Z-axis linear module through the magnetic grid components.
2. A contact type precision detection device according to claim 1, characterized in that: The product fixture includes a base plate fixedly connected to the moving part of the Y-axis linear module, and a contour plate fixedly connected to the base plate, wherein a cavity is arranged inside the contour plate, and the cavity of the contour plate is connected to a vacuum generating device through an air nozzle; a plurality of vents connected to the internal cavity are provided on the upper end surface of the contour plate, and a sealing ring is embedded on the upper end surface of the contour plate outside the vents.
3. A contact type precision detection device according to claim 2, characterized in that: A plurality of positioning pins are fixedly connected to the upper surface of the profiling plate, and the space enclosed by each of the positioning pins matches the shape of the product.
4. A contact type precision detection device according to claim 3, characterized in that: A buffer pad is embedded on the upper end surface of the profiling plate between the vent hole and the positioning pin.
5. A contact type precision detection device according to claim 2, characterized in that: A plurality of ventilation grooves are provided on the upper surface of the profiling plate, and the ventilation grooves are connected to the ventilation holes.
6. A contact type precision detection device according to claim 1, characterized in that: The magnetic grid assembly includes a magnetic grid scale fixedly connected to the housings of the X-axis linear module, the Y-axis linear module and the Z-axis linear module, and a magnetic head fixedly connected to the moving parts of the X-axis linear module, the Y-axis linear module and the Z-axis linear module.
7. A contact type precision detection device according to claim 1, characterized in that: A connecting frame is fixedly connected to the moving part of the X-axis linear module, a counterweight block is vertically slidably connected to the connecting frame, a crossbeam is fixedly connected to the connecting frame, a roller is rotatably connected to the crossbeam, one end of a connecting line is fixedly connected to the counterweight block and the other end thereof is passed through the roller groove of the roller and then connected to the moving part of the Z-axis linear module.
8. The contact type precision detection device according to claim 1, characterized in that: The Y-axis linear modules and the corresponding product fixtures are arranged in two groups in parallel.