Replaceable card spring type thermal expansion tool handle device

By designing a replaceable spring-loaded thermal expansion knife handle device with movable latches, latch plates, and lifting components, the problem that existing devices can only be fixedly connected to electromagnetic rings of one size is solved. This enables the rapid disassembly and flexible replacement of electromagnetic rings, adapting to the heating needs of objects of different specifications, reducing maintenance costs, and improving the flexibility and stability of the equipment.

CN224390532UActive Publication Date: 2026-06-23LEGO INTELLIGENT TECH (DONGGUAN) CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
LEGO INTELLIGENT TECH (DONGGUAN) CO LTD
Filing Date
2025-07-28
Publication Date
2026-06-23

Smart Images

  • Figure CN224390532U_ABST
    Figure CN224390532U_ABST
Patent Text Reader

Abstract

The utility model relates to the field of machining discloses a replaceable clamp spring type thermal expansion tool shank device, including the electromagnetic ring, both ends of the electromagnetic ring all are fixed with the movable sub -buckle, the inside of two movable sub -buckles all are fixed with two limit posts, the outer wall of two limit posts all are equipped with the spring, the inside slide coupling of movable sub -buckle has two buckle plates, one side of two buckle plates all is fixedly connected with button post, one side of two buckle plates all is fixedly connected with buckle block, one side slide coupling of two buckle blocks has the lifting assembly. In the utility model, buckle plate moves through button post, and then buckle block moves inwards to the control equipment's lock, and buckle block moves outward through the compression of spring to push buckle plate, and buckle block moves outward reversely to the control equipment's lock.
Need to check novelty before this filing date? Find Prior Art

Description

Technical Field

[0001] This utility model relates to the field of machining, and in particular to a replaceable spring-loaded thermal expansion tool holder device. Background Technology

[0002] A replaceable spring-loaded thermal expansion tool holder device generates a magnetic field by energizing a coil. The magnetic field heats the object after passing through it. It is widely used in the installation of machine tool drill bits and precision steel castings. By heating the object, it expands to create a larger hole diameter. The object is then placed inside, and after cooling, the contraction of the object allows for a tight fit. However, this device can usually only heat objects of a certain diameter. Therefore, a replaceable spring-loaded thermal expansion tool holder device with a quickly detachable electromagnetic ring has emerged.

[0003] A replaceable spring-loaded thermal expansion knife handle device, encased in a ceramic coil shell, reduces weight while significantly strengthening the overall structure of the device. An internal high-precision temperature controller detects real-time temperature, achieving a response time within seconds, resulting in more uniform heating of the object. The dual-button post pressing and spring reset structure makes quick disassembly more convenient.

[0004] Existing replaceable spring-loaded thermal expansion tool holder devices often only allow for the fixed connection of electromagnetic rings of a single size, resulting in limited flexibility in heating objects. Larger objects cannot be fully enclosed by the electromagnetic rings, while smaller objects waste heat. Furthermore, existing devices require replacement of all electromagnetic rings if they break, significantly increasing maintenance costs. Therefore, a replaceable spring-loaded thermal expansion tool holder device is proposed to address these issues, enabling the heating of tool holders of various sizes and specifications. Utility Model Content

[0005] To overcome the above shortcomings, this utility model provides a replaceable snap ring type thermal expansion tool holder device, which aims to improve the problem that the electromagnetic ring cannot be disassembled and replaced in the prior art.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] A replaceable spring-loaded thermostatic knife handle device includes an electromagnetic ring, with movable latches fixed at both ends of the electromagnetic ring. Two limiting posts are fixed to the inner sides of the two movable latches, and springs are sleeved on the outer walls of the two limiting posts. Two latching plates are slidably connected to the inner sides of the movable latches. A button post is fixedly connected to one side of each of the two latching plates. A latching block is fixedly connected to one side of each of the two latching plates. A lifting assembly is slidably connected to one side of each of the two latching blocks.

[0008] As a further description of the above technical solution:

[0009] The lifting assembly includes a movable female buckle, with one side of each of the two buckle blocks slidably connected to one side of the movable female buckle. A lifting housing is slidably connected to both sides of the movable female buckle. A limit plate is fixedly connected to the inner wall of the lifting housing. A rack is fixedly connected to one side of the limit plate. A movable block is slidably connected to the inner side of the lifting housing. A motor is installed inside the movable block. A gear is fixedly connected to the drive end of the motor. A locking wheel is fixedly connected to one side of the gear. Multiple locking blocks are fixedly connected to the outer wall of the locking wheel. A locking base is fixedly connected to one side of the movable block. A cylinder is installed inside the locking base. A locking buckle is fixedly connected to the drive end of the cylinder. Limit rods are fixedly connected to both sides of the locking buckle.

[0010] As a further description of the above technical solution:

[0011] The two springs are in contact with the two button posts on their opposite sides, and the outer walls of the two springs are slidably connected to the inner wall of the movable buckle.

[0012] As a further description of the above technical solution:

[0013] The outer walls of both of the buckle blocks are slidably connected to the inner wall of the movable sub-buckle, and one side of the movable sub-buckle is slidably connected to one side of the movable female buckle;

[0014] As a further description of the above technical solution:

[0015] One side of the rack is fixedly connected to the inner wall of the lifting housing, and the outer wall of the rack is meshed with the outer wall of the gear.

[0016] As a further description of the above technical solution:

[0017] One end of the movable female buckle is fixed to one end of the movable block, and one end of the locking wheel is rotatably connected to the inside of the movable block;

[0018] As a further description of the above technical solution:

[0019] The outer wall of the locking block is slidably connected to the inner wall of the locking buckle, and the outer wall of the locking buckle is slidably connected to the inner side of the locking base;

[0020] As a further description of the above technical solution:

[0021] The outer walls of both limiting rods are slidably connected to the inner wall of the locking base, and the top of the locking base is in contact with the inner wall of the lifting housing.

[0022] This utility model has the following beneficial effects:

[0023] 1. In this utility model, the button post drives the buckle plate to move, which in turn drives the buckle block to move inward, thereby realizing the opening and closing of the device. The compression of the spring pushes the buckle plate to move outward, and the buckle plate in turn drives the buckle block to move outward, thereby controlling the locking of the device. Due to the presence of the spring, the buckle plate can only move by applying external pressure.

[0024] 2. In this utility model, the lifting and lowering of the equipment is achieved through the cooperation of the motor and gears, so that the lifting and lowering can be controlled at will, thereby solving the problem that ordinary equipment cannot automatically control the up and down movement. Through the cooperation of the cylinder and the locking buckle, the locking effect of the equipment is achieved by locking the locking buckle and the locking block, thus solving the problem of equipment locking. Attached Figure Description

[0025] Figure 1 This is a three-dimensional schematic diagram of a replaceable snap ring type thermal expansion knife handle device proposed in this utility model;

[0026] Figure 2 This is a schematic diagram of the movable latch of a replaceable spring-loaded thermal expansion knife handle device proposed in this utility model;

[0027] Figure 3 for Figure 2 Enlarged view of point A in the middle;

[0028] Figure 4 This is a schematic diagram of the lifting housing of a replaceable spring-loaded thermal expansion knife handle device proposed in this utility model.

[0029] Legend:

[0030] 1. Electromagnetic ring; 2. Movable female buckle; 3. Limiting post; 4. Spring; 5. Buckle plate; 6. Button post; 7. Buckle block; 8. Movable female buckle; 9. Lifting housing; 10. Limiting plate; 11. Rack; 12. Movable block; 13. Motor; 14. Gear; 15. Locking wheel; 16. Locking block; 17. Locking base; 18. Cylinder; 19. Locking buckle; 20. Limiting rod. Detailed Implementation

[0031] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0032] Reference Figures 1 to 3This utility model provides an embodiment of a replaceable spring-loaded thermal expansion tool holder device, including an electromagnetic ring 1. The electromagnetic ring 1 is the core component of the device. When energized, it generates a magnetic field to realize the thermal expansion clamping function of the tool holder, providing basic magnetic support for the installation of the tool. Both ends of the electromagnetic ring 1 are fixed with movable latches 2. The movable latches 2 are the key structures for connecting the electromagnetic ring 1 with the lifting assembly, realizing the quick installation and removal of the electromagnetic ring 1. Two limiting posts 3 are fixed on the inner side of the two movable latches 2. Springs 4 are sleeved on the outer wall of the two limiting posts 3. The springs 4 are elastic elements. Two latch plates 5 are slidably connected to the inner side of the movable latches 2. The latch plates 5 slide within the movable latches 2.

[0033] Each of the two snap-on plates 5 has a button post 6 fixedly connected to one side. The button post 6 serves as an operating component, allowing the operator to easily unlock the snap-on mechanism by pressing it, simplifying the replacement process of the electromagnetic ring 1. Each of the two snap-on plates 5 has a snap-on block 7 fixedly connected to one side. Each of the two snap-on blocks 7 has a lifting component slidably connected to one side. Through sliding cooperation with the lifting component, the electromagnetic ring 1 moves up and down with the lifting component to meet the needs of different processing positions. The two springs 4 have their far sides in contact with the two button posts 6, ensuring that the elastic force of the springs 4 directly acts on the button posts 6, so that the button posts 6 quickly reset after the external force is lost. The outer walls of the two springs 4 are slidably connected to the inner wall of the movable sub-buckle 2. The inner wall of the movable sub-buckle 2 provides sliding guidance for the springs 4, restricts the radial displacement of the springs 4, and ensures their working stability.

[0034] Reference Figure 1 and Figure 4 The lifting assembly includes a movable female buckle 8, with one side of each of the two latching blocks 7 slidably connected to one side of the movable female buckle 8, enabling a detachable connection between the movable male buckle 2 and the movable female buckle 8 and ensuring connection stability. Lifting housings 9 are slidably connected to both sides of the movable female buckle 8, providing a lifting track for the movable female buckle 8 and restricting its direction of movement. A limit plate 10 is fixedly connected to the inner wall of the lifting housing 9, and a rack 11 is fixedly connected to one side of the limit plate 10. The rotational motion of the rack 11 is converted into linear motion, providing a power transmission path for the lifting of the device. A movable block 12 is slidably connected to the inner side of the lifting housing 9. The movable block 12 is the core moving component of the lifting assembly, and a motor 13 is installed inside the movable block 12. The motor 13 serves as the lifting power source, providing stable rotational power.

[0035] A gear 14 is fixedly connected to the drive end of the motor 13. The gear 14 meshes with the rack 11, converting the rotational motion of the motor 13 into the linear motion of the movable block 12. A locking wheel 15 is fixedly connected to one side of the gear 14. The locking wheel 15 rotates synchronously with the gear 14. Multiple locking blocks 16 are fixedly connected to the outer wall of the locking wheel 15. A locking base 17 is fixedly connected to one side of the movable block 12. The locking base 17 ensures the accuracy of the locking action. A cylinder 18 is installed on the inner side of the locking base 17. The cylinder 18 serves as the locking power source to realize the locking and unlocking of the locking wheel 15.

[0036] A locking buckle 19 is fixedly connected to the drive end of the cylinder 18. The locking buckle 19 is pushed by the cylinder 18 to lock the locking block 16, thereby locking the locking wheel 15 and fixing the position of the device. Limiting rods 20 are fixedly connected to both sides of the locking buckle 19. The limiting rods 20 slide on the inner wall of the locking base 17 to provide guidance for the locking buckle 19 and ensure that it moves in a straight line. The outer walls of the two latching blocks 7 are slidably connected to the inner wall of the movable sub-latch 2. The inner wall of the movable sub-latch 2 provides a sliding track for the latching block 7, restricting it to move only in the horizontal direction. One side of the movable sub-latch 2 is slidably connected to one side of the movable female latch 8 to ensure that the movable sub-latch 2 and the movable female latch 8 are tightly fitted and improve the connection stability.

[0037] One side of the rack 11 is fixedly connected to the inner wall of the lifting housing 9 to ensure the stable position of the rack 11 and provide a reliable meshing base for the gear 14. The outer wall of the rack 11 and the outer wall of the gear 14 are meshed, so that the gear 14 rolls smoothly on the rack 11 to achieve precise lifting control. One end of the movable female buckle 8 is fixed to one end of the movable block 12, so that the movable female buckle 8 rises and falls synchronously with the movable block 12 to achieve the position adjustment of the electromagnetic ring 1. One end of the locking wheel 15 is rotatably connected to the inner side of the movable block 12, so that the locking wheel 15 can rotate flexibly and move synchronously with the gear 14. The outer wall of the locking block 16 is slidably connected to the inner wall of the locking buckle 19 to ensure that the locking buckle 19 can smoothly lock the locking block 16 to achieve effective locking.

[0038] The outer wall of the locking buckle 19 is slidably connected to the inner side of the locking base 17. The inner side of the locking base 17 provides a sliding track for the locking buckle 19 to ensure stable locking action. The outer walls of the two limit rods 20 are slidably connected to the inner wall of the locking base 17 to further enhance the movement stability of the locking buckle 19 and prevent it from tilting and shaking. The top of the locking base 17 is in contact with the inner wall of the lifting housing 9 to support the movable block 12, reduce shaking during movement, and improve the overall stability of the device.

[0039] Working principle: When the electromagnetic ring 1 needs to be replaced, press the button post 6 inward at the same time. At this time, the button post 6 will move horizontally inward, pushing the buckle plate 5 inward. While the buckle plate 5 moves inward, it squeezes the spring 4. At the same time, the buckle block 7 will move with the buckle plate 5 inward. When it moves to the innermost side, the buckle block 7 can slide upward from the groove of the movable female buckle 8, thereby completing the disassembly process. When the finger is withdrawn, the spring 4 will drive the buckle plate 5 to move outward, restoring the locked state.

[0040] When vertical movement is required, motor 13 drives gear 14 to rotate, gear 14 drives locking wheel 15 to rotate, locking wheel 15 drives locking block 16 to move, and finally gear 14 drives its structure to move up and down on rack 11. When it moves to the appropriate position, cylinder 18 extends downward, thereby pushing locking buckle 19 to move downward along the groove of limit rod 20 on locking base 17, and then locking locking block 16, so that the entire device is locked, thereby achieving the function of fixing.

[0041] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A replaceable snap ring type thermal expansion tool holder device, comprising an electromagnetic ring (1), characterized in that: Both ends of the electromagnetic ring (1) are fixed with movable buckles (2), and two limiting posts (3) are fixed on the inner side of each of the two movable buckles (2). Springs (4) are sleeved on the outer walls of the two limiting posts (3). Two buckle plates (5) are slidably connected to the inner side of the movable buckle (2). A button post (6) is fixedly connected to one side of each of the two buckle plates (5). A buckle block (7) is fixedly connected to one side of each of the two buckle plates (5). A lifting component is slidably connected to one side of each of the two buckle blocks (7).

2. The replaceable snap ring type thermal expansion tool holder device according to claim 1, characterized in that: The lifting assembly includes a movable female buckle (8), one side of each of the two buckle blocks (7) is slidably connected to one side of the movable female buckle (8), and a lifting housing (9) is slidably connected to both sides of the movable female buckle (8). A limit plate (10) is fixedly connected to the inner wall of the lifting housing (9), and a rack (11) is fixedly connected to one side of the limit plate (10). A movable block (12) is slidably connected to the inner side of the lifting housing (9), and a motor (13) is installed inside the movable block (12). A gear (14) is fixedly connected to the drive end of the machine (13). A locking wheel (15) is fixedly connected to one side of the gear (14). Multiple locking blocks (16) are fixedly connected to the outer wall of the locking wheel (15). A locking base (17) is fixedly connected to one side of the movable block (12). A cylinder (18) is installed on the inner side of the locking base (17). A locking buckle (19) is fixedly connected to the drive end of the cylinder (18). Limit rods (20) are fixedly connected to both sides of the locking buckle (19).

3. The replaceable snap ring type thermal expansion tool holder device according to claim 1, characterized in that: The two springs (4) are in contact with the two button posts (6) on their far sides, and the outer walls of the two springs (4) are slidably connected to the inner wall of the movable buckle (2).

4. The replaceable snap ring type thermal expansion tool holder device according to claim 2, characterized in that: The outer walls of both buckle blocks (7) are slidably connected to the inner wall of the movable sub-buckle (2), and one side of the movable sub-buckle (2) is slidably connected to one side of the movable female buckle (8).

5. A replaceable snap ring type thermal expansion tool holder device according to claim 2, characterized in that: One side of the rack (11) is fixedly connected to the inner wall of the lifting housing (9), and the outer wall of the rack (11) is meshed with the outer wall of the gear (14).

6. The replaceable snap ring type thermal expansion tool holder device according to claim 2, characterized in that: One end of the movable female buckle (8) is fixed to one end of the movable block (12), and one end of the locking wheel (15) is rotatably connected to the inside of the movable block (12).

7. The replaceable snap ring type thermal expansion tool holder device according to claim 2, characterized in that: The outer wall of the locking block (16) is slidably connected to the inner wall of the locking buckle (19), and the outer wall of the locking buckle (19) is slidably connected to the inner side of the locking base (17).

8. A replaceable snap ring type thermal expansion tool holder device according to claim 2, characterized in that: The outer walls of the two limiting rods (20) are slidably connected to the inner wall of the locking base (17), and the top of the locking base (17) is in contact with the inner wall of the lifting housing (9).