A testing fixture for injection molded brackets

Abstract

The utility model relates to a kind of detection tools of injection support, belong to injection support detection equipment technical field.The detection tool of the injection support, including lower detection tool, upper detection tool, rack, movable sliding plate, drive assembly and touch alarm;The rack bottom is equipped with lower detection tool;Lower detection tool upper rack is equipped with movable sliding plate by guiding slide rod sliding;Movable sliding plate upper rack is equipped with drive assembly;Drive assembly is connected with movable sliding plate;Movable sliding plate below is equipped with upper detection tool by guiding pin shaft and reset spring activity;Upper detection tool upper movable sliding plate bottom is equipped with touch alarm.The detection tool of the injection support, compact structure, ingenious design, can complete the detection work of the upper surface and lower surface assembly hole of injection support once, thereby solve the problem of low detection efficiency of existing detection mode of injection support, especially suitable for the detection needs of injection parts.

Description

Technical Field

[0001] The utility model relates to a checking fixture for an injection molded support, and belongs to the technical field of injection molded support detection equipment. Background Art

[0002] In the technical field of injection molded part production, after the production of injection molded parts is completed, various mounting holes provided thereon need to be inspected to verify whether they meet the requirements. A conventional checking fixture, such as the injection molded part flatness checking fixture disclosed in the utility model patent with the authorized publication number CN207072079U, adopts the technical solution of mounting detection pins on a base plate; during operation, the workpiece is inserted onto the detection pins, and if the workpiece can be inserted smoothly, the workpiece is qualified, otherwise it is unqualified. Although the existing checking fixtures can meet the use requirements to a certain extent, they can only complete the detection of one side of the injection molded part. If detection of the other side is required, another checking fixture needs to be manufactured, and two manual placement and detection operations are required, which has the problem of low detection efficiency. Therefore, it is necessary to develop a new checking fixture to solve the above existing problems of the current detection methods for injection molded supports. Summary of the Invention

[0003] The purpose of the utility model is to provide a checking fixture for an injection molded support, which has a compact structure and ingenious design, and solves the problem of low detection efficiency existing in the current detection methods for injection molded supports.

[0004] The technical solution of the utility model is as follows: A checking fixture for an injection molded support comprises a lower checking fixture, an upper checking fixture, a frame, a movable sliding plate, a driving assembly and a touch alarm; the checking fixture is characterized in that the lower checking fixture is mounted at the bottom of the frame; the movable sliding plate is slidably mounted on the frame above the lower checking fixture through guide sliding rods; the driving assembly is mounted on the frame above the movable sliding plate and is connected with the movable sliding plate; the upper checking fixture is movably mounted below the movable sliding plate through guide pin shafts and return springs; and the touch alarm is mounted at the bottom of the movable sliding plate above the upper checking fixture.

[0005] The lower checking fixture comprises a base plate and detection pins; a plurality of detection pins are mounted on the base plate at intervals.

[0006] The upper checking fixture comprises an assembly plate and detection shafts; a plurality of guide pin shafts are symmetrically mounted below the movable sliding plate; the assembly plate is slidably mounted on the guide pin shafts; a limit flange is arranged on the part of each guide pin shaft below the assembly plate; a return spring is sleeved on the part of each guide pin shaft above the assembly plate; and a plurality of detection shafts are mounted on the lower end surface of the assembly plate.

[0007] The detection shaft has a stepped structure.

[0008] The drive assembly includes a connecting rack, a drive gear, and a support bracket; the upper end of the movable slide is fixedly fitted with a connecting rack; the upper end of the connecting rack extends to the top of the frame; a drive gear is mounted on the frame on one side of the connecting rack via a support bracket, a torsion spring, and a rotating shaft; the drive gear meshes with the connecting rack; an operating wrench is mounted on one side of the rotating shaft; a limit pin is mounted on the support bracket on the side of the operating wrench.

[0009] The advantages of this utility model are: The inspection fixture for this injection molded bracket has a compact structure and ingenious design, which can complete the inspection of the assembly holes on the upper and lower surfaces of the injection molded bracket in one go. This solves the problem of low inspection efficiency in the existing inspection methods for injection molded brackets, and is particularly suitable for the inspection needs of injection molded parts. Attached Figure Description

[0010] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 This is a schematic diagram of the isometric structure of this utility model; Figure 3 This is a schematic diagram of the structure of the lower inspection tool of this utility model; Figure 4 for Figure 2 Enlarged structural diagram at point A; Figure 5 for Figure 1 A magnified structural diagram at point B in the middle.

[0011] In the diagram: 1. Frame; 2. Lower gauge; 3. Guide slide; 4. Movable slide; 5. Drive assembly; 6. Guide pin; 7. Return spring; 8. Upper gauge; 9. Touch alarm; 10. Base plate; 11. Detection pin; 12. Assembly plate; 13. Detection shaft; 14. Limit flange; 15. Connecting rack; 16. Support bracket; 17. Rotating shaft; 18. Operating wrench; 19. Limit pin; 20. Drive gear; 21. Workpiece. Detailed Implementation

[0012] The inspection fixture for this injection molding bracket includes a lower inspection fixture 2, an upper inspection fixture 8, a frame 1, a movable slide plate 4, a drive assembly 5, and a touch alarm 9 (see the instruction manual appendix). Figure 1 and 2 ).

[0013] The bottom of frame 1 is equipped with lower gauge 2 (see instruction manual appendix). Figure 1 and 2 The lower gauge 2 includes a base plate 10 and inspection pins 11; multiple inspection pins 11 are installed at intervals on the base plate 10 (see the instruction manual appendix). Figure 3 ).

[0014] During operation, the lower surface of the workpiece 20 can be aligned with the detection pin 11 on the base plate 10. If the workpiece 20 can be inserted into the detection pin 11, it means that the assembly hole on the lower surface of the workpiece 20 meets the requirements; otherwise, it does not meet the requirements.

[0015] A movable slide plate 4 is slidably mounted on the frame 1 above the lower fixture 2 via a guide slide rod 3; a drive assembly 5 is mounted on the frame 1 above the movable slide plate 4 (see the instruction manual appendix). Figure 1 and 2 ).

[0016] Drive assembly 5 includes a connecting rack 15, a drive gear 20, and a support bracket 16 (see the attached instruction manual). Figure 4 The upper end of the movable slide plate 4 is fixedly equipped with a connecting rack 15; the upper end of the connecting rack 15 extends to the top of the frame 1; a drive gear 20 is mounted on the frame 1 on one side of the connecting rack 15 via a support bracket 16, a torsion spring, and a rotating shaft 17; the drive gear 20 is meshed with the connecting rack 15; an operating wrench 18 is mounted on one side of the rotating shaft 17; a limit pin 19 is mounted on the support bracket 16 on one side of the operating wrench 18.

[0017] The purpose of this drive assembly 5 is to ensure that, during operation, when the operating wrench 18 is turned downwards, the rotating shaft 17 overcomes the spring force of the torsion spring and drives the connecting rack 15 and the movable slide plate 4 to move downwards along the guide slide rod 3 via the drive gear 20. When the operating wrench 18 is released, the rotating shaft 17 will drive the drive gear 20 to reverse under the spring force of the torsion spring, and the drive gear 20 will reset the connecting rack 15 and the movable slide plate 4 during the reversal process. During the above process, when the operating wrench 18 touches the limiting pin 19, the limiting pin 19 will abut against the operating wrench 18 to prevent it from turning further downwards, thus achieving the purpose of limiting the lowest position of the movable slide plate 4.

[0018] Drive assembly 5 is connected to movable slide plate 4; upper fixture 8 is movably mounted below movable slide plate 4 via guide pin 6 and return spring 7; touch alarm 9 is mounted on the bottom of movable slide plate 4 above upper fixture 8 (see instruction manual appendix). Figure 1 ).

[0019] The upper inspection fixture 8 includes an assembly plate 12 and a detection shaft 13; multiple guide pins 6 are symmetrically mounted below the movable slide plate 4; the assembly plate 12 is slidably mounted on the guide pins 6; a limit flange 14 is provided on the guide pins 6 below the assembly plate 12; a return spring 7 is fitted on the guide pins 6 above the assembly plate 12; multiple detection shafts 13 with a stepped structure are mounted on the lower end face of the assembly plate 12 (see the appendix of the instruction manual). Figure 1 and 2 ).

[0020] The purpose of setting up the upper inspection fixture 8 is to enable the assembly plate 12 to overcome the elastic force of the return spring 7 and slide upward along the guide pin 6 when it is subjected to force. When it comes into contact with the touch alarm 9, the touch alarm 9 will sound an alarm.

[0021] When the inspection fixture for the injection molded bracket is in operation, first align the lower surface of the workpiece 20 with the inspection pin 11 on the lower inspection fixture 2 and press it onto the inspection pin 11; if the workpiece 20 can be inserted into the inspection pin 11, it means that the assembly hole on the lower surface of the workpiece 20 meets the requirements, otherwise it does not meet the requirements.

[0022] If the mounting holes on the lower surface of workpiece 20 do not meet the requirements, the product is considered defective and should be removed and treated as such. If the mounting holes on the lower surface of workpiece 20 meet the requirements, turn the operating wrench 18 downwards to make it contact the limit pin 19. After the rotating shaft 17 overcomes the spring force of the torsion spring, it drives the connecting rack 15, the movable slide plate 4, and the upper inspection tool 8 to move downwards along the guide slide rod 3 to the lowest position via the drive gear 20.

[0023] During the process of the upper fixture 8 moving downward to the lowest position, if the assembly hole on the upper surface of the workpiece 20 meets the requirements, the detection shaft 13 on the upper fixture 8 can be smoothly inserted into the workpiece 20; if the assembly hole on the upper surface of the workpiece 20 does not meet the requirements, that is, the detection shaft 13 cannot be inserted into the workpiece 20, the workpiece 20 will slide upward along the guide pin 6 after the assembly plate 12 is subjected to force to overcome the elastic force of the return spring 7 by abutting against the detection shaft 13 and comes into contact with the touch alarm 9, and the touch alarm 9 will sound an alarm.

[0024] If the touch alarm 9 sounds, it means that workpiece 20 is a defective product; otherwise, it is a qualified product. Then, release the operating wrench 18, remove workpiece 20, and proceed to the next work cycle.

[0025] The inspection fixture for this injection molded bracket has a compact structure and ingenious design, which can complete the inspection of the assembly holes on the upper and lower surfaces of the injection molded bracket in one go. This solves the problem of low inspection efficiency in the existing inspection methods for injection molded brackets, and is particularly suitable for the inspection needs of injection molded parts.

Claims

1. A fixture for injection molded brackets, comprising a lower fixture (2), an upper fixture (8), a frame (1), a movable slide plate (4), a drive assembly (5), and a touch alarm (9); characterized in that: The frame (1) is equipped with a lower inspection fixture (2) at the bottom; a movable slide plate (4) is slidably mounted on the frame (1) above the lower inspection fixture (2) via a guide slide rod (3); a drive assembly (5) is mounted on the frame (1) above the movable slide plate (4); the drive assembly (5) is connected to the movable slide plate (4); an upper inspection fixture (8) is movably mounted below the movable slide plate (4) via a guide pin (6) and a return spring (7); a touch alarm (9) is mounted at the bottom of the movable slide plate (4) above the upper inspection fixture (8).

2. The inspection fixture for an injection-molded bracket according to claim 1, characterized in that: The lower inspection tool (2) includes a base plate (10) and inspection pins (11); multiple inspection pins (11) are installed at intervals on the base plate (10).

3. The inspection fixture for an injection-molded bracket according to claim 1, characterized in that: The upper inspection fixture (8) includes an assembly plate (12) and a detection shaft (13); multiple guide pins (6) are symmetrically mounted below the movable slide plate (4); the assembly plate (12) is slidably mounted on the guide pins (6); a limit flange (14) is provided on the guide pins (6) below the assembly plate (12); a return spring (7) is fitted on the guide pins (6) above the assembly plate (12); multiple detection shafts (13) are mounted on the lower end face of the assembly plate (12).

4. The inspection fixture for an injection-molded bracket according to claim 3, characterized in that: The detection axis (13) has a stepped structure.

5. The inspection fixture for an injection-molded bracket according to claim 1, characterized in that: The drive assembly (5) includes a connecting rack (15), a drive gear (20), and a support bracket (16); the upper end of the movable slide plate (4) is fixedly fitted with a connecting rack (15); the upper end of the connecting rack (15) extends to the top of the frame (1); the drive gear (20) is mounted on the frame (1) on one side of the connecting rack (15) via the support bracket (16), a torsion spring, and a rotating shaft (17); the drive gear (20) meshes with the connecting rack (15); an operating wrench (18) is mounted on one side of the rotating shaft (17); a limit pin (19) is mounted on the support bracket (16) on one side of the operating wrench (18).

Images