In-mold tapping device
By designing the support platform and tapping components for the in-mold tapping device, the problem of multiple clamping operations required by existing tapping devices is solved, enabling rapid clamping and ejection of metal parts and improving production efficiency.
Patent Information
- Application Number
- CN202520248535.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-17
- Publication Date
- 2026-01-13
- Estimated Expiration
- 2035-02-17
AI Technical Summary
Existing tapping equipment requires multiple clamping and loosening of metal parts when machining threaded holes, resulting in low production efficiency and difficulty in meeting the demand for high-efficiency machining.
Design an in-mold tapping device that utilizes a combination structure of a support platform, a movable plate, and a positioning plate. The device clamps the metal part using the compression potential energy of a spring, and achieves rapid clamping and ejection of the metal part through the cooperation of a push block and a spring. Automatic tapping is achieved by combining the motor and hydraulic cylinder drive of the tapping assembly.
It enables rapid clamping and ejection of metal parts, improving production efficiency, reducing clamping time, and enhancing processing efficiency.
Smart Images

Figure CN223789672U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of tapping device technology, specifically an in-mold tapping device. Background Technology
[0002] Existing metal sheet parts are usually processed by stamping, which uses upper and lower dies to cut the metal parts, punch holes and form them as a whole. However, this processing method has certain limitations. For example, when processing some metal parts with threaded holes, an additional thread tapping process is required after punching.
[0003] In existing tapping equipment, to prevent the metal parts from moving during tapping, the metal parts need to be clamped by a jig before tapping. After tapping, the jig needs to be released before the metal parts can be transferred out. Since clamping and releasing the metal parts takes a lot of time, when there are many metal parts that need to be tapped, it will reduce production efficiency and make it difficult to meet the usage requirements. Utility Model Content
[0004] The purpose of this invention is to provide an in-mold tapping device, which aims to solve the problems mentioned in the background art.
[0005] To achieve the above objectives, the present invention adopts the following technical solution: The in-mold tapping device includes a support platform, a through hole on the upper surface of the support platform, grooves on both sides of the through hole on the support platform, a fixing rod inside the groove, a first spring sleeved on the fixing rod, a movable plate on the support platform, the movable plate being slidably connected to the fixing rod, a positioning plate on the upper surface of the support platform, a limit plate at the upper end of both the movable plate and the positioning plate, a stop plate at one end of the movable plate, a receiving groove on the stop plate, a push block inside the receiving groove, two round rods slidably connected to the stop plate on one side of the push block, the two round rods being connected by a push plate, a second spring sleeved on the round rod between the push plate and the stop plate, side plates on both sides of the support platform, waist holes on the side plates, upright plates on both sides of the upper surface of the support platform, and a tapping assembly between the two upright plates.
[0006] Preferably, the tapping assembly includes a mounting cavity disposed between two upright plates. A guide cylinder, a main shaft, and a counterspindle are rotatably connected inside the mounting cavity. The guide cylinder, the main shaft, and the counterspindle are respectively provided with meshing gears. A motor for driving the main shaft to rotate is provided on the outer surface of the mounting cavity. A tap is slidably connected inside the guide cylinder. A housing is provided on the upper surface of the mounting cavity. A hydraulic cylinder is provided on the top inner part of the housing. A fixing plate is provided on the output end of the hydraulic cylinder and the upper end of the tap. The two fixing plates are connected by bolts.
[0007] Preferably, a notch is provided at the lower end of one of the uprights that is furthest from the abutment.
[0008] Preferably, the lower end of the groove is open.
[0009] Preferably, the outer surface of the upright plate is provided with a weight-reducing groove.
[0010] The beneficial effects of this utility model are:
[0011] When using this tapping device, there is no need to release the clamp. The metal part clamped between the movable plate and the positioning plate can be pushed out simply by controlling the movement of the push block, thereby improving the removal efficiency of the metal part. Furthermore, when clamping the metal part, the clamping of the metal part can be completed simply by controlling the movement of the metal part, thereby improving the clamping efficiency and thus improving the production efficiency. Attached Figure Description
[0012] Figure 1 This is a structural schematic diagram of a specific embodiment of the present utility model.
[0013] Figure 2 This is a schematic diagram before tapping a metal part.
[0014] Figure 3 This is a top view of the support platform.
[0015] Figure 4 This is a schematic diagram of the internal structure of the mounting cavity.
[0016] Figure 5 This is a top view of the guide tube.
[0017] In the diagram: 1. Support platform; 2. Through hole; 3. Fixing rod; 4. First spring; 5. Fixing plate; 6. Movable plate; 7. Positioning plate; 8. Limiting plate; 9. Support plate; 10. Push block; 11. Round rod; 12. Push plate; 13. Second spring; 14. Side plate; 15. Waist hole; 16. Vertical plate; 17. Mounting cavity; 18. Guide cylinder; 19. Main shaft; 20. Sub-shaft; 21. Gear; 22. Motor; 23. Tap; 24. Housing; 25. Hydraulic cylinder. Detailed Implementation
[0018] The specific embodiments of this utility model will be further described below with reference to the accompanying drawings.
[0019] like Figure 1-5 As shown, an in-mold tapping device includes a support platform 1. A through hole 2 is formed on the upper surface of the support platform 1. Grooves are formed on both sides of the through hole 2 on the support platform 1. A fixing rod 3 is disposed inside the groove, and a first spring 4 is sleeved on the fixing rod 3. A movable plate 6 is disposed on the support platform 1, and the movable plate 6 is slidably connected to the fixing rod 3. A positioning plate 7 is disposed on the upper surface of the support platform 1. Limit plates 8 are provided at the upper ends of both the movable plate 6 and the positioning plate 7. A stop plate 9 is provided at one end of the movable plate 6. The support plate 9 has a receiving groove, and a push block 10 is provided inside the receiving groove. Two round rods 11 are provided on one side of the push block 10 and are slidably connected to the support plate 9. The two round rods 11 are connected by a push plate 12. A second spring 13 is sleeved on the round rod 11 and located between the push plate 12 and the support plate 9. Side plates 14 are provided on both sides of the support platform 1. Waist holes 15 are provided on the side plates 14. Vertical plates 16 are provided on both sides of the upper surface of the support platform 1. A tapping assembly is provided between the two vertical plates 16.
[0020] The device can be bolted to an operating table at an appropriate height via the waist hole 15 on the side plate 14. After the device is fixed, the tapping operation on the metal part to be processed can begin.
[0021] When processing metal parts, firstly, a round hole is machined on the metal part using a stamping device. Then, the metal part with the round hole is placed between the movable plate 6 and the positioning plate 7, with one side of the metal part contacting the side of the abutment plate 9. After the metal part is placed between the movable plate 6 and the positioning plate 7, the first spring 4 on the fixing rod 3 is in a compressed state. Through the compression potential energy of the first spring 4, the metal part is clamped between the movable plate 6 and the positioning plate 7. At the same time, the metal part is also placed on the support table 1, and the round hole on the metal part is located above the through hole 2. The push block 10 is also located between the movable plate 6 and the positioning plate 7. Then, the round hole on the metal part is tapped by the tapping assembly.
[0022] The tapping assembly includes a mounting cavity 17 disposed between two vertical plates 16. Inside the mounting cavity 17, a guide cylinder 18, a main spindle 19, and a counterspindle 20 are rotatably connected. Gears 21 mesh with each other on the guide cylinder 18, main spindle 19, and counterspindle 20. A motor 22 for driving the main spindle 19 is mounted on the outer surface of the mounting cavity 17. A tap 23 is slidably connected inside the guide cylinder 18. A housing 24 is mounted on the upper surface of the mounting cavity 17. A hydraulic cylinder 25 is mounted on the top inner part of the housing 24. Fixing plates 5 are mounted on the output end of the hydraulic cylinder 25 and the upper end of the tap 23. The two fixing plates 5 are connected by bolts. When tapping a round hole in a metal part, the motor 22 is started, and the motor 22 drives the main spindle 19 to rotate. The main shaft 19, the secondary shaft 20, and the gear 21 outside the guide cylinder 18 drive the guide cylinder 18 to rotate. When the guide cylinder 18 rotates, it drives the tap 23 inside to rotate. At the same time, the hydraulic cylinder 25 is activated, and the hydraulic cylinder 25 pushes the tap 23 to move downward. The tap 23 rotates and moves downward at the same time to tap the round hole on the metal part. After the tapping of the metal part is completed, the output end of the control motor 22 is rotated in the opposite direction. Then, the hydraulic cylinder 25 drives the tap 23 to move upward. The limit plate 8 set on the movable plate 6 and the positioning plate 7 can prevent the tap 23 from driving the metal part upward, so that the tap 23 can be removed from the metal part. Next, the metal part that has been tapped is removed from the support table 1.
[0023] When removing the metal part from the support platform 1, simply push the push plate 12. The push plate 12, the round rod 11, and the push block 10 will push the metal part on the support platform 1 out between the movable plate 6 and the positioning plate 7. The worker can then remove the pushed metal part. Then, release the push plate 12. Under the action of the second spring 13, the push block 10 will re-enter the receiving groove on the abutment plate 9 so that the metal part can be pushed out again.
[0024] Furthermore, a notch is provided at the lower end of one of the upright plates 16, which is away from the abutment plate 9, so that the metal part can move within the notch at the lower end of the upright plate 16, thereby preventing the upright plate 16 from hitting the metal part.
[0025] Furthermore, the lower end of the groove is open, allowing debris entering the groove to fall down through the lower end, thus minimizing the risk of debris getting stuck on the first spring 4 and affecting its normal operation.
[0026] Furthermore, the outer surface of the upright plate 16 is provided with a weight-reducing groove, which helps to reduce the overall weight of the device and facilitates its handling.
[0027] In the description of this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.
Claims
1. An in-mold tapping device, characterized in that, The support includes a support platform with a through hole on its upper surface. Grooves are formed on both sides of the through hole on the support platform, and a fixing rod is installed inside each groove. A first spring is fitted onto the fixing rod. A movable plate is provided on the support platform and is slidably connected to the fixing rod. A positioning plate is provided on the upper surface of the support platform. Limit plates are provided at the upper ends of both the movable plate and the positioning plate. A stop plate is provided at one end of the movable plate, and a receiving groove is formed on the stop plate. A push block is provided inside the receiving groove. Two round rods are provided on one side of the push block and are slidably connected to the stop plate. The two round rods are connected by a push plate. A second spring is fitted onto each round rod between the push plate and the stop plate. Side plates are provided on both sides of the support platform, and waist holes are formed on the side plates. Vertical plates are provided on both sides of the upper surface of the support platform, and a tapping assembly is provided between the two vertical plates.
2. The in-mold tapping device according to claim 1, characterized in that, The tapping assembly includes a mounting cavity disposed between two vertical plates. Inside the mounting cavity, a guide cylinder, a main shaft, and a secondary shaft are rotatably connected. The guide cylinder, main shaft, and secondary shaft are respectively provided with meshing gears. The outer surface of the mounting cavity is provided with a motor for driving the main shaft to rotate. A tap is slidably connected inside the guide cylinder. The upper surface of the mounting cavity is provided with a housing. A hydraulic cylinder is provided at the top inner part of the housing. The output end of the hydraulic cylinder and the upper end of the tap are both provided with fixing plates. The two fixing plates are connected by bolts.
3. The in-mold tapping device according to any one of claims 1-2, characterized in that, One of the uprights, which is far from the backing plate, has a notch at its lower end.
4. The in-mold tapping device according to claim 1, characterized in that, The groove has an opening at its lower end.
5. The in-mold tapping device according to claim 1, characterized in that, The outer surface of the upright plate is provided with a weight-reducing groove.