A plunger and plunger sleeve sizing and pairing apparatus

Abstract

The utility model relates to a kind of detection equipment, in particular to a kind of size measurement and pairing equipment of plunger and plunger sleeve, it includes material moving mechanism, material moving mechanism is controlled connection with controller, material moving mechanism is circumferentially provided with plunger detection mechanism, plunger sleeve detection mechanism, pairing disc and unqualified disc, plunger detection mechanism includes plunger conveying assembly and precision range finder, precision range finder is equipped with the detection groove for plunger to enter, precision range finder is used to send plunger multistage outer diameter numerical value to controller, plunger sleeve detection mechanism includes plunger sleeve conveying assembly and measuring instrument, measuring instrument is equipped with precision measuring head, measuring instrument is set up to lift, precision measuring head is used to extend into plunger sleeve, measuring instrument is used to send plunger sleeve multistage inner hole diameter numerical value to controller, controller obtains the taper of plunger and plunger sleeve according to the maximum and minimum outer diameter numerical value of plunger, the maximum and minimum inner hole diameter numerical value of plunger sleeve, pairing is carried out according to the maximum outer diameter numerical value of plunger and plunger sleeve inner hole minimum diameter.

Description

Technical Field

[0001] This utility model relates to a testing device, and more particularly to a device for measuring and matching the dimensions of a plunger and a plunger sleeve. Background Technology

[0002] The dimensions of the plunger and plunger sleeve after machining have a certain error. After assembly, if the gap between the inner hole of the plunger sleeve and the plunger is too large, the operation will be unstable. If the gap between the inner hole of the plunger sleeve and the plunger is too small, it will jam. Therefore, it is necessary to design testing and matching equipment to test the inner diameter of the plunger sleeve and the outer diameter of the plunger, screen out those with small taper, and match them to control the gap between the two within a certain range. Utility Model Content

[0003] In view of the technical problems existing in the background art, the present invention aims to provide a device for measuring and matching the size of a plunger and a plunger sleeve, which is equipped with a precision rangefinder and a precision probe to detect the outer diameter of the plunger and the inner diameter of the plunger sleeve respectively, and the controller controls the material transfer mechanism to transfer the material based on the detection results.

[0004] To solve the above-mentioned technical problems, the present invention adopts the following technical solution: This plunger and plunger sleeve size measurement and matching device includes a material transfer mechanism connected to a controller. The material transfer mechanism is circumferentially equipped with a plunger detection mechanism, a plunger sleeve detection mechanism, a matching plate, and a defective plate. The plunger detection mechanism includes a matching plunger conveying assembly and a precision rangefinder. The precision rangefinder has a detection groove for the plunger to enter and is used to send multiple segments of the plunger's outer diameter values ​​to the controller. The plunger sleeve detection mechanism includes a matching plunger sleeve conveying assembly and a measuring instrument. The measuring instrument has a precision probe, which is raised and lowered. The precision probe is used to extend into the plunger sleeve and is used to send multiple segments of the plunger sleeve's inner diameter values ​​to the controller. The matching plate includes a large-size matching plate, a standard-size matching plate, and a small-size matching plate. Both the defective plate and the matching plate have plunger placement areas and plunger sleeve placement areas.

[0005] In this scheme, the controller calculates the taper of the plunger and plunger sleeve based on the maximum and minimum outer diameter values ​​of the plunger and the maximum and minimum inner diameter values ​​of the plunger sleeve. The plunger with excessive taper is moved to the unqualified plate, and the plunger with small taper is moved to the mating plate. The plunger is mated according to the maximum outer diameter value of the plunger and the minimum inner diameter value of the plunger sleeve.

[0006] Preferably, the plunger conveying assembly includes a first feeding belt, which is connected to the controller. The precision rangefinder is equipped with a stop block and a first sensor, which is used to send a plunger positioning signal to the controller.

[0007] In this scheme, the stop block prevents the plunger from over-feeding. The first sensor sends a plunger positioning signal to the controller, which then stops the first feed belt and controls the precision rangefinder to perform detection.

[0008] Preferably, the plunger sleeve conveying assembly includes a second feeding belt, which is connected to the controller. The second feeding belt is conveyed in a transverse direction. The precision probe is equipped with a plunger sleeve clamp and a second sensor. The plunger sleeve clamp is longitudinally movable, and the second sensor is used to send a plunger sleeve positioning signal to the controller.

[0009] In this scheme, the second sensor sends a plunger sleeve positioning signal to the controller, the controller controls the second feeding belt to stop, the plunger sleeve clamp moves longitudinally to hold the plunger sleeve for positioning, and the precision probe extends into the plunger sleeve for detection.

[0010] Preferably, the material transfer mechanism includes an articulated manipulator.

[0011] In this solution, the articulated robotic arm reliably transfers materials.

[0012] Preferably, the measuring instrument is mounted on a slide table, the slide table is connected to a lifting motor, and the lifting motor is connected to a controller.

[0013] In this scheme, the lifting motor drives the slide table to move the measuring instrument up and down.

[0014] The beneficial effects of this utility model are as follows: the controller calculates the taper of the plunger and plunger sleeve based on the maximum and minimum outer diameter values ​​of the plunger and the maximum and minimum inner diameter values ​​of the plunger sleeve. Pairing is performed based on the maximum outer diameter value of the plunger and the minimum inner diameter value of the plunger sleeve. Therefore, this utility model has substantial features and progress compared with the prior art. Attached Figure Description

[0015] The following description, in conjunction with the accompanying drawings, details the embodiments and working principles of this utility model.

[0016] Figure 1 This is a top view of the present invention.

[0017] Figure 2 This is a side view of the present invention.

[0018] Figure 3 This is a schematic diagram of the plunger detection mechanism in this utility model.

[0019] Figure 4 This is a schematic diagram of the plunger sleeve detection mechanism in this utility model.

[0020] In the diagram: 1. Material transfer mechanism; 2. Plunger detection mechanism; 3. Plunger conveying assembly; 4. Precision rangefinder; 5. Detection groove; 6. Plunger sleeve detection mechanism; 7. Plunger sleeve conveying assembly; 8. Measuring instrument; 9. Precision probe; 10. Pairing plate; 11. Large-size pairing plate; 12. Standard-size pairing plate; 13. Small-size pairing plate; 14. Defective plate; 15. Plunger placement area; 16. Plunger sleeve placement area; 17. Plunger sleeve clamping block; 18. Position stop block; 19. First sensor; 20. Second sensor; 21. Slide table; 22. Lifting motor; 23. Articulated manipulator; 24. First feeding belt; 25. Second feeding belt. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the implementation of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.

[0022] In the description of this application, it should be understood that the terms "upper" and "lower" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.

[0023] In the description of this application, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated.

[0024] See appendix Figure 1-4 In this embodiment, a plunger and plunger sleeve size measurement and matching device is provided, including a material transfer mechanism 1. The material transfer mechanism 1 is connected to a controller. The material transfer mechanism 1 includes an articulated manipulator 23. The material transfer mechanism 1 is circumferentially equipped with a plunger detection mechanism 2, a plunger sleeve detection mechanism 6, a matching plate 10, and a defective plate 14.

[0025] The plunger detection mechanism 2 includes a matching plunger conveying assembly 3 and a precision rangefinder 4. The precision rangefinder 4 is provided with a detection groove 5 for the plunger to enter. The precision rangefinder 4 is used to send multiple outer diameter values ​​of the plunger to the controller. The plunger conveying assembly 3 includes a first feeding belt 24, which is controlled and connected to the controller. The precision rangefinder 4 is equipped with a stop block 18 and a first sensor 19. The first sensor 19 is used to send a plunger arrival signal to the controller.

[0026] The plunger sleeve detection mechanism 6 includes a matching plunger sleeve conveying assembly 7 and a measuring instrument 8. The measuring instrument 8 is equipped with a precision probe 9 and is mounted on a slide table 21. The slide table 21 is connected to a lifting motor 22, which is connected to a controller. The precision probe 9 is used to extend into the plunger sleeve, and the measuring instrument 8 is used to send multi-segment inner diameter values ​​of the plunger sleeve to the controller. The plunger sleeve conveying assembly 7 includes a second feeding belt 25, which is connected to the controller. The second feeding belt 25 conveys in a transverse direction. The precision probe 9 is equipped with a plunger sleeve clamping block 17 and a second sensor 20. The plunger sleeve clamping block 17 is longitudinally movable, and the second sensor 20 is used to send a plunger sleeve positioning signal to the controller.

[0027] The pairing plate 10 includes a large-size pairing plate 11, a standard-size pairing plate 12, and a small-size pairing plate 13. Both the defective plate 14 and the pairing plate 10 are provided with a plunger placement area 15 and a plunger sleeve placement area 16.

[0028] In this embodiment, material replenishment is performed manually. The first feeding belt 24 transports the plunger into the detection slot 5 of the precision rangefinder 4. When the first sensor 19 senses the end of the plunger, it sends a plunger positioning signal to the controller. The controller then stops the first feeding belt 24. The precision rangefinder 4 detects the outer diameter of the two sections of the plunger. The controller calculates the difference between the maximum and minimum values. If the difference exceeds the specified value, the product is defective; if it does not exceed the specified value, the product is qualified. The articulated robot 23 moves the plunger according to the judgment result. After the plunger is moved away, the first sensor 19 sends a signal to the controller, which then controls the first feeding belt 24 to continue transporting the plunger.

[0029] The second feeding belt 25 conveys the plunger sleeve to the plunger sleeve clamp 17. The second sensor 20 sends a plunger sleeve positioning signal to the controller. The controller stops the second feeding belt, and the plunger sleeve clamp 17 moves towards each other to hold the plunger sleeve, performing a positioning operation. The lifting motor 22 drives the slide table 21 to lower the measuring instrument 8. The precision probe 9 extends into the plunger sleeve to detect the diameter of the four sections of the inner hole of the plunger sleeve. The controller calculates the difference between the maximum and minimum values. If the difference exceeds the specified value, the product is defective; if it does not exceed the specified value, the product is qualified. The articulated robot 23 moves the plunger sleeve according to the judgment result. After the plunger sleeve is moved away, the second sensor 20 sends a signal to the controller. The controller controls the slide table 21 and the plunger sleeve clamp 17 to reset, and the second feeding belt 25 continues to operate.

[0030] Defective products are transferred to the defective plate 14 by the articulated robot 23, and qualified products are transferred to the pairing plate 10 for pairing. Standard size ranges are set for the maximum outer diameter of the plunger and the minimum inner diameter of the plunger sleeve. Plungers and plunger sleeves that fall within the standard size range are placed on the standard size pairing plate 12. Those that exceed the maximum standard size are placed on the large size pairing plate 11, and those that are smaller than the minimum standard size are placed on the small size pairing plate 13. The outer diameter of the plunger and the plunger sleeve, as well as the plunger and plunger sleeve, are placed in separate areas.

[0031] Among them, the difference between the maximum outer diameter of the plunger and the minimum inner diameter of the plunger sleeve in the standard size range is the minimum clearance, and the difference between the minimum outer diameter of the plunger and the maximum inner diameter of the plunger sleeve is the maximum clearance. The four outer diameters of the plunger can also be detected. The detection methods of the precision rangefinder 4 and the measuring instrument 8 can be pneumatic detection, laser detection, and visual detection, which are mature technologies.

[0032] In other alternative implementations, a gantry robot can be used instead of the articulated robot 23, which offers a variety of material transfer methods and is a mature technology.

[0033] The above description represents the preferred embodiment of this utility model. It should be noted that the protection scope of this utility model is not limited thereto. For those skilled in the art, various improvements, modifications, or equivalent substitutions can be made without departing from the equivalent inventive concept disclosed in this utility model, and these modifications and substitutions are also considered to be within the protection scope of this utility model.

Claims

1. A device for measuring and matching the dimensions of a plunger and a plunger sleeve, characterized in that: Includes a material transfer mechanism (1), which is connected to a controller, and the material transfer mechanism (1) is circumferentially equipped with... The plunger detection mechanism (2) includes a matching plunger delivery assembly (3) and a precision rangefinder (4). The precision rangefinder (4) is provided with a detection groove (5) for the plunger to enter. The precision rangefinder (4) is used to send the plunger's multi-segment outer diameter values ​​to the controller. The plunger sleeve testing mechanism (6) includes a matching plunger sleeve conveying assembly (7) and a measuring instrument (8). The measuring instrument (8) is equipped with a precision probe (9). The measuring instrument (8) is raised and lowered. The precision probe (9) is used to extend into the plunger sleeve. The measuring instrument (8) is used to send the plunger sleeve multi-segment inner hole diameter values ​​to the controller. The pairing tray (10) includes a large-size pairing plate (11), a standard-size pairing plate (12) and a small-size pairing plate (13). The defective disc (14) and the mating disc (10) are both provided with a plunger placement area (15) and a plunger sleeve placement area (16).

2. The device for measuring and matching the dimensions of a plunger and a plunger sleeve as described in claim 1, characterized in that: The plunger conveying assembly (3) includes a first feeding belt (24), which is connected to the controller. The precision rangefinder (4) is equipped with a stop block (18) and a first sensor (19), which is used to send a plunger positioning signal to the controller.

3. The device for measuring and matching the dimensions of a plunger and a plunger sleeve as described in claim 1, characterized in that: The plunger sleeve conveying assembly (7) includes a second feeding belt (25), which is connected to the controller. The second feeding belt (25) is conveyed in a transverse direction. The precision probe (9) is equipped with a plunger sleeve clamp (17) and a second sensor (20). The plunger sleeve clamp (17) is longitudinally movable, and the second sensor (20) is used to send a plunger sleeve positioning signal to the controller.

4. The device for measuring and matching the dimensions of a plunger and a plunger sleeve as described in claim 1, characterized in that: The material transfer mechanism (1) includes an articulated manipulator (23).

5. The device for measuring and matching the dimensions of a plunger and a plunger sleeve as described in claim 1, characterized in that: The measuring instrument (8) is mounted on the slide table (21), which is connected to the lifting motor (22) via transmission. The lifting motor (22) is connected to the controller via control.

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