Fine filtration shell measuring equipment

Abstract

A fine filtration shell measuring device relates to the field of automobile part measuring devices and comprises a supporting seat, a workpiece positioning tool, a sliding table cylinder, a displacement sensor and a PLC (programmable logic controller). The workpiece positioning tool is installed on the supporting seat, the sliding table air cylinder is installed above one side of the workpiece positioning tool through a support fixed to the supporting seat, and the displacement sensor is installed on a sliding table of the sliding table air cylinder. The signal output end of the PLC is connected with the signal input end of the sliding table air cylinder, and the signal output end of the displacement sensor is in data transmission and communication with the PLC. As a semi-automatic measuring device, compared with manual inspection by using a height gauge, the device shortens the measuring time, effectively improves the measuring efficiency, can meet the production requirements, has the characteristics of improving the measuring accuracy and reliability, simplifying the operation process and saving the cost, and is easy to popularize and apply.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of automobile parts measuring equipment, especially to a fine filter shell measuring equipment. BACKGROUND

[0002] In the field of automobile parts manufacturing, the fine filter shell for installing the fine filter element in the fuel filter or the air filter is a key component for ensuring the quality of fuel or air filtration, and is usually produced by injection molding process. The dimensional accuracy of the fine filter shell is crucial to product quality:

[0003] (1) The dimensional accuracy of the fine filter shell is closely related to the filtration performance. However, in actual injection molding production process, the size of the fine filter shell often deviates due to various factors such as injection molding process parameter fluctuation, mold wear, etc. Once the size deviates from the design standard, the filter element installation space reserved inside the shell cannot achieve the ideal state, which makes it difficult to install the filter element tightly, impurities can bypass the filter element and enter the system, which seriously weakens the filtration effect and makes it difficult to provide reliable protection for core components such as engines.

[0004] (2) The internal space layout of the automobile is extremely compact, and the fine filter shell needs to be precisely matched with many surrounding components. However, due to the limitations of existing size control means after injection molding, the shell size (such as the height and flatness of the upper and lower shells) often does not meet the design value. This not only causes installation obstacles and consumes a lot of manpower and time cost, but also easily interferes with adjacent components, and forcibly installing may even cause component damage, which poses a hidden danger to the overall operation stability of the vehicle.

[0005] Currently, with the continuous improvement of product performance and reliability requirements in the automotive industry, the quality control of the fine filter shell has become a core point in the production process. The injection height and flatness size of the fine filter shell need to be checked 100% before welding. Currently, height gauge is usually used for manual inspection, but this inspection method has the problems of low efficiency, troublesome detection, poor accuracy and reliability, and is difficult to meet the production demand. INVENTION CONTENTS

[0006] The technical problem to be solved by the utility model is to provide a fine filter shell measuring equipment to improve the measurement efficiency, accuracy and reliability to meet the production demand.

[0007] The technical scheme for solving the above technical problems is: a precision filter shell measuring device, comprising a end cover surface height measuring device, the end cover surface height measuring device comprising a support seat, a workpiece positioning tool, a sliding table air cylinder, a displacement sensor, a PLC controller; the workpiece positioning tool is installed on the support seat, the sliding table air cylinder is installed above one side of the workpiece positioning tool through a support fixed on the support seat, and the displacement sensor is installed on a sliding table of the sliding table air cylinder; a signal output end of the PLC controller is connected with a signal input end of the sliding table air cylinder, and a signal output end of the displacement sensor is connected with the PLC controller for data transmission and communication.

[0008] The further technical scheme of the utility model discloses: the displacement sensor is pneumatic contact displacement sensor, and the measurement repeat accuracy is 5-15 microns;The displacement sensor for measuring the height of the shell end cover surface adopts a plane measuring head, and the displacement sensor for measuring the height of the upper shell and the lower shell adopts a roller measuring head.

[0009] The further technical scheme of the utility model discloses: a small light spot opposite radiation sensor and material sensor are further installed near the workpiece positioning tool, and the small light spot opposite radiation sensor is installed on the two sides of the workpiece positioning tool respectively.

[0010] The further technical scheme of the utility model discloses: the workpiece positioning tool comprises a positioning platform, a center positioning block and a positioning adjusting device, the center positioning block is installed in the middle of the positioning platform, and the positioning adjusting device is installed on the positioning platform around the center positioning block.

[0011] The further technical scheme of the utility model discloses: the center positioning block is provided with elastic collision beads for supporting the inner diameter of the workpiece on the outer circumference, so as to be applicable to different shell models;The positioning adjusting device is composed of positioning adjusting block I, positioning adjusting block II or is composed of auxiliary positioning pin and positioning adjusting block.

[0012] The further technical scheme of the utility model discloses: the PLC controller is provided with a measurement result indicating lamp and a buzzer for warning that the measurement result is unqualified, wherein the measurement result indicating lamp comprises a green indicating lamp for displaying that the measurement result is qualified and a red indicating lamp for displaying that the measurement result is unqualified.

[0013] The further technical scheme of the utility model discloses: the sliding table of the sliding table air cylinder is further provided with a sensor protection frame, and the displacement sensor is installed on the sliding table of the sliding table air cylinder through the sensor protection frame.

[0014] The further technical scheme of the utility model discloses: the end cover surface height measuring device further comprises a connecting block and a support foot cup, the connecting block is connected with the support seat at the upper end, the lower end of the connecting block is connected with a workbench, and the support foot cup is installed at the bottom of the support seat.

[0015] The further technical scheme of the utility model discloses: the fine filter casing measuring equipment still includes upper casing height measuring equipment, lower casing height measuring equipment, and the upper casing height measuring equipment, lower casing height measuring equipment still respectively includes rotating platform, servo motor on the structure basis of end cover face height measuring equipment;The signal input end of servo motor is connected with the signal output end of PLC controller, and the output end of servo motor passes through support seat and is connected with the bottom end of rotating platform, and the top end of rotating platform is connected with the bottom end of workpiece positioning tooling.

[0016] The further technical scheme of the utility model discloses: the end cover face height measuring equipment, upper casing height measuring equipment, lower casing height measuring equipment are placed on same workbench, and are arranged in face-to-face staggered mode.

[0017] Compared with the prior art, the fine filter casing measuring equipment and the measuring method thereof have the following beneficial effects due to the above structure:

[0018] 1. improve the measuring efficiency:

[0019] As a semi-automatic measuring equipment, compared with artificial use of height gauge inspection, the measuring time is greatly shortened, the single-shift production capacity is effectively improved, thereby meeting the production demand.

[0020] 2. improve the measuring accuracy and reliability:

[0021] The utility model discloses use high-precision displacement sensor, accurate rotating platform and slide cylinder, can accurately measure the height and flatness of fine filter casing, and the measuring equipment precision reaches 0.02mm, can satisfy product precision requirement.

[0022] Further, the utility model discloses using contact type measuring mode, cooperates high-precision pneumatic contact displacement sensor, and its measuring repeat accuracy is 5~15um, can further improve measuring accuracy and reliability.

[0023] Further, the utility model discloses simultaneously using two kinds of sensors of small light spot opposite sensor and material sensor, can improve the accuracy and reliability of detection through mutual authentication. When two kinds of sensors detect material simultaneously or do not detect material simultaneously, the reliability of detection result is higher. When the detection result of two is inconsistent, can further analyze and judge which sensor is abnormal, thereby taking measures to adjust or repair in time.

[0024] Further, the utility model discloses that the center positioning block is installed with elastic pearl for supporting the inner diameter of workpiece on the outer circle, not only can be applicable to different mould number casing, but also can automatically adjust the supporting force according to the actual situation of the inner diameter of workpiece, reduces the deformation of workpiece due to uneven support, makes the measuring result more accurate.

[0025] 3. Simplify the operation process:

[0026] The device is simple to operate, only needs to place the fine filter shell on the workpiece positioning tool, and can complete measurement by pressing the start button, thereby reducing the complexity of manual operation.

[0027] 4. Save cost:

[0028] The three sets of measuring devices can be placed on the same workstation, arranged in a face-to-face staggered manner, thereby saving the equipment floor area and cost.

[0029] Next, the technical features of the fine filter shell measuring device and the measuring method thereof will be further described in combination with the drawings and specific embodiments. BRIEF DESCRIPTION OF DRAWINGS

[0030] Figure 1 : the structure diagram (front view) of the fine filter shell measuring device of the utility model of embodiment one,

[0031] Figure 2 : Figure 1 the top view of the end cover height measuring device;

[0032] Figure 3 : the structure diagram of the upper shell height measuring device and the lower shell height measuring device;

[0033] Figure 4 : the structure diagram of the center positioning block,

[0034] Figure 5 : the structure diagram of the upper shell height measuring device and the lower shell height measuring device;

[0035] In the above drawings, the following is explained:

[0036] A-end cover height measuring device, B-upper shell height measuring device, C-lower shell height measuring device;

[0037] Supporting seat, 101-support, 102-supporting seat platform I, 103-supporting seat platform II, 104-supporting column,

[0038] 2-workpiece positioning tool, 201-positioning platform,

[0039] 202-center positioning block, 2021-elastic impact bead,

[0040] 203-positioning adjusting device, 2031-positioning adjusting block I, 2032-positioning adjusting block II,

[0041] 2033-assistant positioning pin, 2034-positioning adjusting block,

[0042] 3-sliding table cylinder, 301-sliding table, 302-sensor protection frame, 303-cable chain, 304-guide rail,

[0043] 4-displacement sensor,

[0044] 5-PLC controller, 501-measurement result indicator, 502-buzzer, 5011-green indicator, 5012-red indicator,

[0045] 6-small light spot reflection sensor, 7-material sensor, 8-connection block, 9-support foot cup,

[0046] 10-rotary platform, 11-servo motor, 12-workbench, 13-workpiece, 14-start button. DETAILED DESCRIPTION

[0047] EMBODIMENT

[0048] A fine filter shell measuring device, a total of three sets, respectively: end cover surface height measuring device A, upper shell height measuring device B, lower shell height measuring device C; The three sets of measuring devices are placed on the same workbench 12, arranged in a face-to-face staggered manner (see Figures 1-2 ). Among them,

[0049] The end cover surface height measuring device A comprises a support seat 1, a workpiece positioning tool 2, a sliding table cylinder 3, a displacement sensor 4, a PLC controller 5, a small light spot reflection sensor 6, a material sensor 7, a connection block 8, and a support foot cup 9 (see Figure 3 ); wherein:

[0050] The support seat 1 is composed of a support 101 and a support seat platform I 102, the support 101 is fixed on the support seat platform I 102, the support seat platform I 102 is connected with the upper end of the connection block 8, the lower end of the connection block 8 is connected with the workbench 12, and the support foot cup 9 is connected at the bottom of the support seat platform I 102.

[0051] The workpiece positioning tool 2 is installed on the support seat platform I 102 of the support seat 1, and the workpiece positioning tool 2 comprises a positioning platform 201, a center positioning block 202, and a positioning adjustment device 203. The center positioning block 202 is installed in the middle of the positioning platform 201, and the positioning adjustment device 203 is installed on the positioning platform 201 around the center positioning block. The center positioning block 202 is provided with an elastic collision bead 2021 on the outer circumference for supporting the inner diameter of the workpiece, so as to be suitable for different mold number shells; the positioning adjustment device 203 is composed of a positioning adjustment block I 2031 and a positioning adjustment block II 2032, the positioning adjustment block I 2031 is a long strip structure with an inner arc, and the positioning adjustment block II 2032 is a square structure.

[0052] The slide cylinder 3 is installed on the side of the workpiece positioning tool 2 by a support 101 fixed on the support base 1, and in operation, the slide cylinder 3 drives the slide 301 to move along the guide rail 304 through the drag chain 303.

[0053] The slide 301 of the slide cylinder 3 is further provided with a sensor protection frame 302, and the displacement sensor 4 is installed at the front end of the sensor protection frame 302, that is, the displacement sensor 4 is installed on the slide 301 of the slide cylinder 3 through the sensor protection frame 302. The displacement sensor 4 is a pneumatic contact displacement sensor, and the measurement repeatability is 5-15 μm; the displacement sensor 4 for measuring the end cover surface of the shell adopts a plane probe, and the displacement sensor 4 for measuring the upper and lower shells adopts a roller probe.

[0054] The signal output end of the PLC controller 5 is connected with the signal input end of the slide cylinder 3, and the signal output end of the displacement sensor 4 is connected with the PLC controller 5 for data transmission and communication. The PLC controller 5 is provided with a measurement result indicating lamp 501 and a buzzer 502 for warning the unqualified measurement result, wherein the measurement result indicating lamp 501 includes a green indicating lamp 5011 for displaying the qualified measurement result and a red indicating lamp 5012 for displaying the unqualified measurement result.

[0055] The small light spot reflection sensor 6 and the material sensor 7 are installed near the workpiece positioning tool 2, and the small light spot reflection sensors 6 are symmetrically installed on the two sides of the workpiece positioning tool 2.

[0056] The upper shell height measuring device B and the lower shell height measuring device C have the same structure as the end cover surface height measuring device A, except that:

[0057] ①The upper shell height measuring device B and the lower shell height measuring device C further respectively include a rotating platform 10 and a servo motor 11; the signal input end of the servo motor 11 is connected with the signal output end of the PLC controller 5, the output end of the servo motor 11 is connected with the bottom end of the rotating platform 10 through the support base 1, and the top end of the rotating platform 10 is connected with the positioning platform 201 of the bottom end of the workpiece positioning tool 2.

[0058] ②The positioning adjusting device 203 of the workpiece positioning tool 2 is composed of an auxiliary positioning pin 2033 and a positioning adjusting block 2034, and the positioning adjusting block 2034 is a long strip structure with an inner arc.

[0059] ③ The support seat 1 includes the support seat platform I 102, the support 101, the support seat platform II 103 and the support column 104, the support column 104 connects the support seat platform I 102 and the support seat platform II 103 into a whole, the support seat platform II 103 is connected with the upper end of the connecting block 8, and the bottom end of the support seat platform II 103 is connected with the support foot cup 9 (see Figure 5 As shown).

[0060] The working principle of the utility model is as follows:

[0061] The fine filter shell to be measured is placed on the corresponding measuring equipment, the flatness of the shell placement reference surface is controlled within 0 ~ 0.01mm, and the inner circle center of the shell is used as positioning.When the small light spot opposite transmission sensor and the material sensor detect that the shell is placed in place, the start button is pressed.The slide table cylinder is extended, the displacement sensor is moved above the test workpiece, the cylinder is pressed down, the displacement sensor is in contact with the workpiece.For measuring the upper and lower shell height, the servo motor drives the rotary measuring equipment to drive the shell to rotate 360°, the displacement sensor collects data and transmits to the PLC controller, the PLC controller carries out calculation and analysis, the measurement result is obtained and displayed.After the measurement is completed, the cylinder is reset, the operator takes out the measured shell, and the measurement process is completed.

Claims

1. A fine filter housing measuring apparatus characterized by comprising: The end cover height measuring device (A) comprises a support seat (1), a workpiece positioning tool (2), a sliding table air cylinder (3), a displacement sensor (4), and a PLC controller (5). The workpiece positioning tool (2) is installed on the support seat (1). The sliding table air cylinder (3) is installed on the upper side of the workpiece positioning tool (2) through a support (101) fixed on the support seat (1). The displacement sensor (4) is installed on the sliding table (301) of the sliding table air cylinder (3). The signal output end of the PLC controller (5) is connected with the signal input end of the sliding table air cylinder (3), and the signal output end of the displacement sensor (4) is connected with the PLC controller (5) for data transmission and communication.

2. A fine filter housing measuring apparatus according to claim 1, characterized in that: The displacement sensor (4) is a pneumatic contact displacement sensor, and the measurement repeatability is 5-15 microns. The displacement sensor (4) for measuring the height of the end cover of the shell adopts a plane probe, and the displacement sensor (4) for measuring the height of the upper shell and the lower shell adopts a roller probe.

3. A fine filter housing measuring apparatus according to claim 1, characterized by: A small light spot opposite sensor (6) and a material sensor (7) are installed near the workpiece positioning tool (2). The small light spot opposite sensor (6) is installed on the two sides of the workpiece positioning tool (2).

4. A fine filter housing measuring apparatus according to claim 1, characterized by: The workpiece positioning tool (2) comprises a positioning platform (201), a center positioning block (202), and a positioning adjustment device (203). The center positioning block (202) is installed in the middle of the positioning platform (201), and the positioning adjustment device (203) is installed on the positioning platform (201) around the center positioning block (202).

5. A fine filter housing measuring apparatus according to claim 4, wherein: The center positioning block (202) is provided with elastic collision beads (2021) for supporting the inner diameter of the workpiece on the outer circumference, so as to be applicable to different shell models. The positioning adjustment device (203) is composed of a positioning adjustment block I (2031) and a positioning adjustment block II (2032), or is composed of an auxiliary positioning pin (2033) and a positioning adjustment block (2034).

6. A fine filter housing measuring apparatus according to claim 1, characterized by: The PLC controller (5) is provided with a measurement result indicating lamp (501) and a buzzer (502) for warning that the measurement result is unqualified. The measurement result indicating lamp (501) comprises a green indicating lamp (5011) for displaying that the measurement result is qualified and a red indicating lamp (5012) for displaying that the measurement result is unqualified.

7. A fine filter housing measuring apparatus according to claim 1, wherein: The sliding table (301) of the sliding table air cylinder (3) is further provided with a sensor protection frame (302), and the displacement sensor (4) is installed on the sliding table (301) of the sliding table air cylinder (3) through the sensor protection frame (302).

8. A fine filter housing measuring apparatus according to claim 1, characterized by: The end cover height measuring device (A) further comprises a connecting block (8) and a support foot cup (9). The upper end of the connecting block (8) is connected with the support seat (1), and the lower end of the connecting block (8) is connected with a workbench (12). The support foot cup (9) is installed at the bottom of the support seat (1).

9. A clean filter housing measuring apparatus according to any one of claims 1 to 8, wherein: The fine filter shell measuring equipment further comprises an upper shell height measuring equipment (B) and a lower shell height measuring equipment (C), the upper shell height measuring equipment (B) and the lower shell height measuring equipment (C) further comprise a rotating platform (10) and a servo motor (11) on the basis of the structure of the end cover face height measuring equipment (A); a signal input end of the servo motor (11) is connected with a signal output end of a PLC controller (5), an output end of the servo motor (11) is connected with a bottom end of the rotating platform (10) through a support seat (1), and a top end of the rotating platform (10) is connected with a bottom end of the workpiece positioning tooling (2).

10. A fine filter housing measuring apparatus according to claim 9, characterized in that: The end cover face height measuring equipment, the upper shell height measuring equipment and the lower shell height measuring equipment are placed on the same workbench (12) and are arranged in a face-to-face staggered mode.

Images