A device for detecting the quality of a threaded hole of an injection molded part

Abstract

A device for detecting the quality of injection molding threaded hole, including bearing mechanism, positioning mechanism and detection mechanism, bearing mechanism contains bottom plate and mould table, positioning mechanism includes slide rod, fixed frame, telescopic column and slide rail, mould table is arranged on the slide rail, detection mechanism is arranged on the fixed frame, detection mechanism includes driving motor, torque sensor and detection bolt. The utility model aims at avoiding the problem of low efficiency and unstable detection result caused by artificial detection injection molding threaded hole.

Description

Technical Field

[0001] This utility model relates to the field of injection molding technology, specifically to a device for detecting the quality of threaded holes in injection molded parts. Background Technology

[0002] With the rapid development of injection molding technology, injection molded parts, with their lightweight, high strength, and ability to form complex structures, are increasingly widely used in automobiles, home appliances, electronic equipment, and industrial equipment, leading to continuous growth in market demand. Among these, injection molded parts with threaded holes have become key components due to their ease of assembly and connection. However, the quality inspection of threaded holes in injection molded parts still mainly relies on manual methods.

[0003] This traditional manual inspection method has obvious drawbacks: First, manual inspection requires manually inspecting each threaded hole of the injection molded part one by one. The repetitive manual work can easily cause operator fatigue, resulting in low inspection efficiency. Second, the inspection results are greatly affected by the operation of the personnel, and problems such as missed inspections and misjudgments are prone to occur, causing defective products to flow into subsequent processes or even the end market. Utility Model Content

[0004] The present invention aims to provide a device for detecting the quality of threaded holes in injection molded parts, so as to avoid the problems of low efficiency and unstable detection results caused by manual detection of threaded holes in injection molded parts.

[0005] To solve the above technical problems, the specific solution adopted by this utility model is as follows: a device for detecting the quality of threaded holes in injection molded parts, including a bearing mechanism, a positioning mechanism, and a detection mechanism. The bearing mechanism includes a base plate and a mold table. The positioning mechanism includes a slide rod horizontally fixed above the base plate, a fixed frame slidably mounted on the slide rod, a telescopic column located on one side of the fixed frame with its long axis direction perpendicular to the base plate, and a slide rail located on the surface of the base plate with its long axis direction perpendicular to the long axis direction of the slide rod. The mold table is slidably mounted on the slide rail. The detection mechanism is mounted on the fixed frame. The detection mechanism includes a drive motor, a torque sensor, and a detection bolt. The output shaft of the drive motor is connected to the upper end of the telescopic column, the torque sensor is connected to the lower end of the telescopic column, and the detection bolt is located below the torque sensor.

[0006] As a further optimization of the device for detecting the quality of threaded holes in injection molded parts according to this utility model: two support columns are provided at both ends of the slide rod, and the two ends of the support columns are respectively connected to the slide rod and the base plate by bolts.

[0007] As a further optimization of the device for detecting the quality of threaded holes in injection molded parts according to this utility model: the connection between the slide rail and the base plate is by welding, and the base plate is provided with at least one slide rail, and each slide rail is provided with at least one mold table.

[0008] As a further optimization of the device for detecting the quality of threaded holes in injection molded parts according to this utility model: at least one mold groove is provided on the mold table, the mold groove is fixed to the mold table by bolts, and each mold groove has a fixing buckle at both ends, the fixing buckle is connected to the mold table by bolts.

[0009] As a further optimization of the device for detecting the quality of threaded holes in injection molded parts according to this utility model: the mold table and the slide rail are moved relative to each other by a linear cylinder, and the output shaft of the linear cylinder is parallel to the long axis of the slide rail.

[0010] As a further optimization of the device for detecting the quality of threaded holes in injection molded parts according to this utility model: the fixed frame and the slide rod achieve relative movement through a linear cylinder, and the output shaft direction of the linear cylinder is parallel to the long axis direction of the slide rod.

[0011] As a further optimization of the device for detecting the quality of threaded holes in injection molded parts according to this utility model: a fixed platform is welded to one side of the fixed frame, a through hole is provided in the middle of the fixed platform, a bearing is installed in the through hole, the drive motor is located above the fixed platform, and the telescopic column is installed through the bearing in the through hole of the fixed platform.

[0012] As a further optimization of the device for detecting the quality of threaded holes in injection molded parts according to this utility model: the lower end of the telescopic column is connected to the torque sensor through a flange assembly, the lower end of the torque sensor is connected to the connecting shaft through the flange, the lower end of the connecting shaft is provided with a drill chuck assembly, and the drill chuck assembly is connected to the connecting shaft through a reverse thread screw.

[0013] As a further optimization of the device for detecting the quality of threaded holes in injection molded parts according to this utility model: the drill chuck assembly includes a drill sleeve and a chuck, and the chuck and the detection bolt are clamped and fixed when the drill sleeve rotates.

[0014] Beneficial effects: This utility model sets up a bearing mechanism, a positioning mechanism and a detection mechanism. The base plate and the mold table form the bearing foundation. The injection molded parts are positioned by using components such as sliding rods, sliding rails and telescopic columns. The drive motor, torque sensor and detection bolt work together to complete the quality detection of the threaded hole. Compared with the traditional detection method, this device effectively avoids the problem of low efficiency caused by manual operation.

[0015] The components are connected and assembled securely using bolts, welding, and other methods, and relative movement is achieved using linear cylinders, which ensures the reliability of the device operation, reduces the interference of human factors on the test results, and improves the stability of the test.

[0016] The structural design of the mold slot, fixing buckle and drill chuck assembly not only facilitates the placement and fixation of injection molded parts and improves the stability of inspection, but also adapts to the inspection needs of injection molded parts of various specifications, thus improving the practicality of the device. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the thread hole quality inspection device of this utility model;

[0018] Figure 2 for Figure 1 Enlarged view of section A in the middle;

[0019] The markings in the diagram are: 1. Bearing mechanism, 101. Base plate, 102. Mold table, 2. Positioning mechanism, 201. Slide rod, 202. Fixing frame, 203. Telescopic column, 204. Slide rail, 3. Detection mechanism, 301. Drive motor, 302. Torque sensor, 303. Detection bolt, 4. Support column, 5. Mold groove, 6. Fixing buckle, 7. Fixing table, 8. Bearing, 9. Connecting shaft, 10. Drill chuck assembly, 1001. Drill sleeve, 1002. Chuck. Detailed Implementation

[0020] An apparatus for detecting the quality of threaded holes in injection molded parts includes a bearing mechanism 1, a positioning mechanism 2, and a detection mechanism 3.

[0021] like Figure 1 As shown, the supporting mechanism 1 includes a base plate 101 and a mold table 102. The mold table 102 has six mold slots 5 for batch inspection of injection molded parts. The mold slots 5 are fixed to the mold table 102 with bolts. The mold slots 5 can be replaced with mold slots 5 that are adapted to different models of injection molded parts to be inspected according to actual working needs. To ensure working stability, each mold slot 5 has a fixing buckle 6 at both ends. The fixing buckle 6 is connected to the mold table 102 with bolts, which effectively prevents relative movement of the injection molded parts, the mold slots 5, and the mold table 102 during operation.

[0022] The positioning mechanism 2 includes a slide bar 201, a fixed frame 202, a telescopic column 203, and a slide rail 204.

[0023] The slide rod 201 is horizontally fixed above the base plate 101. Two support columns 4 are provided at both ends of the slide rod 201. The two ends of the support columns 4 are connected to the slide rod 201 and the base plate 101 respectively by bolts. The support columns 4 have the function of fixing the slide rod 201 and improving the integrity of the slide rod 201 and the base plate 101.

[0024] The fixed frame 202 is slidably mounted on the slide rod 201. The fixed frame 202 and the slide rod 201 move relative to each other through a linear cylinder. The output shaft of the linear cylinder is parallel to the long axis of the slide rod 201, which enables the fixed frame 202 to move along the long axis of the slide rod 201.

[0025] A fixed platform 7 is welded to one side of the fixed frame 202. A through hole is provided in the middle of the fixed platform 7, and a bearing 8 is installed inside the through hole. A telescopic column 203 is located on one side of the fixed frame 202, with its long axis perpendicular to the base plate 101. The telescopic column 203 passes through the bearing 8 installed in the through hole of the fixed platform 7. A drive motor 301 is mounted above the fixed platform 7, and the output shaft of the drive motor 301 is connected to the upper end of the telescopic column 203. In this design, the rigid connection between the fixed platform 7 and the fixed frame 202 effectively improves the overall structural stability of the detection mechanism 3. The introduction of the bearing 8 ensures smooth linear telescopic movement of the telescopic column 203 while eliminating radial friction when the drive motor 301 drives the telescopic column 203 to rotate, enabling the drive motor 301 to drive the telescopic column 203 to achieve a combined telescopic and rotational motion.

[0026] The slide rail 204 is mounted on the surface of the base plate 101, with its long axis perpendicular to the long axis of the slide rod 201. The slide rail 204 is welded to the base plate 101, improving the overall integrity between the slide rail 204 and the base plate 101. Two slide rails 204 are mounted on the base plate 101, each with a mold table 102, meeting the needs of batch inspection of injection molded parts. The perpendicular arrangement of the slide rods 201, telescopic columns 203, and slide rails 204 facilitates the collection of positional information of the threaded holes to be tested and the positioning of the inspection bolts 303.

[0027] The relative movement between the slide rail 204 and the mold table 102 is achieved by a linear cylinder. The output shaft of the linear cylinder is parallel to the long axis of the slide rail 204, thus enabling the mold table 102 to move along the long axis of the slide rail 204.

[0028] like Figure 1 and Figure 2 As shown, the detection mechanism 3 includes a drive motor 301, a torque sensor 302, and a detection bolt 303. The torque sensor 302 is connected to the lower end of the telescopic column 203, and the detection bolt 303 is located below the torque sensor 302.

[0029] The drive motor 301 is the power source for the test bolt 303. The torque sensor 302 is used to evaluate whether the torque is abnormal during the process of the test bolt 303 being screwed into the threaded hole to be tested. If the torque is abnormal (too large or too small), it indicates that the threaded hole to be tested is unqualified.

[0030] The upper end of the torque sensor 302 is connected to the lower end of the telescopic column 203 via a flange assembly. The lower end of the torque sensor 302 is connected to the connecting shaft 9 via a flange. The torque sensor 302 mainly measures the torque transmitted from the connecting shaft 9 to the telescopic column 203. A drill chuck assembly 10 is provided at the lower end of the connecting shaft 9. The drill chuck assembly 10 is connected to the connecting shaft 9 via a reverse thread screw. The thread of the reverse thread screw rotates in the opposite direction to that of the detection nut, which prevents loosening between the drill chuck assembly 10 and the connecting shaft 9 during operation.

[0031] The drill chuck assembly 10 includes a drill sleeve 1001 and a chuck 1002. When the drill sleeve 1001 rotates, the chuck 1002 is clamped and fixed to the inspection bolt 303. When the drill sleeve 1001 is rotated in the opposite direction, the chuck 1002 is loosened and the inspection bolt 303 is replaced, thereby meeting the inspection requirements of different types of threaded holes.

[0032] The method of using the device for detecting the quality of threaded holes in injection molded parts according to this utility model is as follows: During operation, the base plate 101 is placed horizontally, the mold groove 5 is fixed on the mold platform 102, and then the injection molded part is embedded into the mold groove 5. The fixing buckle 6 ensures the stability of the injection molded part, the mold groove 5, and the mold platform 102. The control positioning mechanism 2 adjusts the central axis of the detection bolt 303 to align with the central axis of the threaded hole to be inspected. Then, the control detection mechanism 3 inspects the threaded hole. Depending on the actual inspection requirements, operations such as increasing the number of mold platforms 102 and mold grooves 5, changing the specifications of the mold grooves 5, or changing the specifications of the detection bolts 303 can be performed to meet the inspection needs of a large number of injection molded parts, various types of injection molded parts, and complex threaded hole models.

Claims

1. A device for detecting the quality of threaded holes in injection molded parts, characterized in that: The system includes a bearing mechanism (1), a positioning mechanism (2), and a detection mechanism (3). The bearing mechanism (1) includes a base plate (101) and a mold table (102). The positioning mechanism (2) includes a slide rod (201) horizontally fixed above the base plate (101), a fixed frame (202) slidably mounted on the slide rod (201), a telescopic column (203) located on one side of the fixed frame (202) with its long axis perpendicular to the base plate (101), and a telescopic column (203) located on the surface of the base plate (101) with its long axis perpendicular to the slide rod (201). A slide rail (204) is perpendicular to the axis. The mold table (102) is slidably mounted on the slide rail (204). The detection mechanism (3) is mounted on the fixed frame (202). The detection mechanism (3) includes a drive motor (301), a torque sensor (302), and a detection bolt (303). The output shaft of the drive motor (301) is connected to the upper end of the telescopic column (203). The torque sensor (302) is connected to the lower end of the telescopic column (203). The detection bolt (303) is located below the torque sensor (302).

2. The device for detecting the quality of threaded holes in injection molded parts according to claim 1, characterized in that: The slide rod (201) has two support columns (4) at both ends, and the two ends of the support columns (4) are connected to the slide rod (201) and the base plate (101) respectively by bolts.

3. The device for detecting the quality of threaded holes in injection molded parts according to claim 1, characterized in that: The slide rail (204) is connected to the base plate (101) by welding. The base plate (101) has at least one slide rail (204) and each slide rail (204) has at least one mold table (102).

4. The device for detecting the quality of threaded holes in injection molded parts according to claim 1, characterized in that: The mold table (102) is provided with at least one mold groove (5), the mold groove (5) is fixed to the mold table (102) by bolts, and each mold groove (5) is provided with a fixing buckle (6) at both ends, the fixing buckle (6) is connected to the mold table (102) by bolts.

5. The device for detecting the quality of threaded holes in injection molded parts according to claim 1, characterized in that: The mold table (102) and the slide rail (204) move relative to each other through a linear cylinder, and the output shaft of the linear cylinder is parallel to the long axis of the slide rail (204).

6. The device for detecting the quality of threaded holes in injection molded parts according to claim 1, characterized in that: The fixed frame (202) and the slide rod (201) achieve relative movement through a linear cylinder, and the output shaft of the linear cylinder is parallel to the long axis of the slide rod (201).

7. The device for detecting the quality of threaded holes in injection molded parts according to claim 1, characterized in that: A fixed platform (7) is welded to one side of the fixed frame (202). A through hole is provided in the middle of the fixed platform (7), and a bearing (8) is installed in the through hole. The drive motor (301) is located above the fixed platform (7), and the telescopic column (203) is installed through the bearing (8) in the through hole of the fixed platform (7).

8. The device for detecting the quality of threaded holes in injection molded parts according to claim 1, characterized in that: The lower end of the telescopic column (203) is connected to the torque sensor (302) via a flange assembly. The lower end of the torque sensor (302) is connected to the connecting shaft (9) via a flange. The lower end of the connecting shaft (9) is provided with a drill chuck assembly (10). The drill chuck assembly (10) is connected to the connecting shaft (9) via a reverse thread screw.

9. The device for detecting the quality of threaded holes in injection molded parts according to claim 8, characterized in that: The drill chuck assembly (10) includes a drill chuck sleeve (1001) and a chuck (1002). When the drill chuck sleeve (1001) rotates, the chuck (1002) is clamped and fixed with the detection bolt (303).

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