Heat-shrinkable handle for a knife

Abstract

The utility model discloses a heat shrinkage knife handle of anti -drop structure belongs to heat shrinkage knife handle technical field, and it includes the transition section, is connected with the handle and the clamping section on the transition section, is equipped with the clamping groove on the clamping section, is equipped with the fixed groove on the handle, the position of clamping groove corresponds with fixed groove, is installed with the cutting tool body in clamping groove and fixed groove, is equipped with two notches and mounting hole on the handle, the sliding installation of notch has the top block and the connecting block. The heat shrinkage knife handle of anti -drop structure, through the screw rod rotation drive the top block moving of being connected on it, and the top block moves and will extrude the connecting block, and the pressure will make the connecting block move in the notch, and the connecting block moves and will drive the movable mounting of the clamping plate, until the clamping plate is connected in the card slot, can carry out the subsequent installation's work then, can prevent the cutting tool accidental drop in the processing, avoids the work piece to be damaged, has improved production efficiency.

Description

Technical Field

[0001] This utility model belongs to the field of heat shrink knife handle technology, specifically a heat shrink knife handle with an anti-detachment structure. Background Technology

[0002] A heat-shrink tool holder is a tool used for clamping machine tool cutting tools. It uses the principle of thermal expansion and contraction to fix the tool. When in use, the tool holder is heated to expand the clamping hole. After the tool is inserted and cooled, the tool holder contracts to tightly clamp the tool. It has high clamping accuracy and rigidity, reduces the connection gap of traditional tool holders, and is suitable for high-precision machining scenarios, such as mold making and precision parts manufacturing.

[0003] Existing heat shrink tool holders may cause tool detachment during subsequent use when the processing time is too long or the stress is too high. This may not only directly damage the workpiece being processed, causing surface scratches, dimensional deviations and other defects, making the workpiece unusable, but also interfere with processing accuracy, causing the processing flow to be interrupted, delaying the production schedule and increasing production costs. At the same time, existing heat shrink tool holders cannot be quickly installed on machine tools, resulting in low work efficiency. Utility Model Content

[0004] To overcome the above-mentioned defects, this utility model provides a heat shrink tool holder with an anti-detachment structure, which solves the problem that existing heat shrink tool holders may cause the tool to fall off during subsequent use when the processing time is too long or the stress is too great. This may not only directly damage the workpiece being processed, causing defects such as surface scratches and dimensional deviations, making the workpiece unusable, but also interfere with the processing accuracy, causing the processing flow to be interrupted, delaying the production progress, and increasing the production cost. At the same time, existing heat shrink tool holders cannot be quickly installed on machine tools, resulting in low work efficiency.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a heat-shrinkable tool holder with an anti-detachment structure, comprising a transition section, a tail shank and a clamping section connected to the transition section, a clamping groove on the clamping section, a fixing groove on the tail shank, the position of the clamping groove corresponding to the fixing groove, a tool body installed in the clamping groove and the fixing groove, two slots and a mounting hole on the tail shank, a top block and a connecting block slidably installed in the slots, a lead screw installed in the mounting hole, the end of the lead screw connected to the top block, two locking plates installed on the connecting block, and four locking slots on the tool body, two locking slots forming a group, the locking plates engaging in the locking slots.

[0006] As a further embodiment of this utility model: a rotating hole is provided at the bottom of the lead screw, and a plurality of heat-conducting holes are provided on the clamping section.

[0007] As a further embodiment of this utility model: a reset spring is connected between the connecting block and the inner wall of the slot, and an installation sleeve is fixedly installed on the tail shank.

[0008] As a further embodiment of this utility model: a connecting handle is slidably connected inside the mounting sleeve, and several limiting grooves are provided on the mounting sleeve.

[0009] As a further embodiment of this utility model: a plurality of limiting plates are installed on the connecting handle, and the limiting plates are slidably engaged in the limiting groove.

[0010] As a further embodiment of this utility model: the mounting sleeve and the limiting plate are provided with corresponding screw holes, and fixing bolts are installed in the screw holes.

[0011] Compared with the prior art, the beneficial effects of this utility model are as follows: This heat-shrink tool holder with anti-detachment structure, through the setting of a clamping plate, lead screw, top block, and connecting block, allows the operator to place the heat-shrink tool holder behind a heating device during operation. Heating the device causes the tool body to be installed in the clamping groove through the principle of thermal expansion and contraction. At this point, several slots on the tool body correspond to the clamping plate. Then, a tool is used to rotate the lead screw through a rotating hole. The rotation of the lead screw moves the top block connected to it, which in turn presses against the connecting block. This pressure causes the connecting block to move within the slot, and the movement of the connecting block moves the clamping plate installed on it until the clamping plate is engaged in the slot. Subsequent installation work can then proceed. This design prevents the tool from accidentally detaching during processing, avoids damage to the workpiece, and improves production efficiency.

[0012] This heat shrink tool holder with anti-detachment structure, consisting of an installation sleeve, limiting plates, a connecting handle, and fixing bolts, allows for quick installation. After the tool body is installed, the operator attaches the connecting handle to the installation sleeve. During this process, several limiting plates on the connecting handle engage with the limiting grooves, aligning the limiting plates with the screw holes on the installation sleeve. The fixing bolts are then installed in the screw holes, and the connecting handle is connected to an external machine tool for subsequent processing. This allows for rapid installation of the heat shrink tool holder, improving work efficiency. Attached Figure Description

[0013] Figure 1 This is a three-dimensional structural diagram of the present invention; Figure 2 This is a schematic diagram of the structure connecting the tailstock and the slot of this utility model; Figure 3 This is a schematic diagram of the connection between the lead screw and the top block of this utility model; Figure 4 This is a schematic diagram of the structure of the tool body and the heat-conducting hole of this utility model; Figure 5 This is a schematic diagram of the structure connecting the limiting plate mounting sleeve of this utility model; In the diagram: 1. Transition section; 2. Mounting sleeve; 3. Connecting shank; 4. Clamping section; 5. Tail shank; 6. Tool body; 7. Groove; 8. Mounting hole; 9. Slot; 10. Lead screw; 11. Rotary hole; 12. Top block; 13. Return spring; 14. Connecting block; 15. Clamping plate; 16. Clamping groove; 17. Heat conduction hole; 18. Limiting groove; 19. Limiting plate; 20. Screw hole; 21. Fixing bolt; 22. Fixing groove. Detailed Implementation

[0014] The technical solution of this patent will be further described in detail below with reference to specific embodiments.

[0015] like Figure 1-5 As shown, this utility model provides a technical solution: a heat-shrinkable tool holder with an anti-detachment structure, including a transition section 1, a tail shank 5 and a clamping section 4 connected to the transition section 1, a clamping groove 16 on the clamping section 4, a fixing groove 22 on the tail shank 5, the position of the clamping groove 16 corresponding to the fixing groove 22, a tool body 6 installed in the clamping groove 16 and the fixing groove 22, two slots 7 and mounting holes 8 on the tail shank 5, a top block 12 and a connecting block 14 slidably installed in the slots 7, a return spring 13 connected between the connecting block 14 and the inner wall of the slot 7, and a mounting sleeve 2 fixedly installed on the tail shank 5. Because of the connection of the return spring 13, the return spring 13 will be stretched during the movement of the connecting block 14 driven by the top block 12, so as to generate a restoring elastic force. When changing the tool later, the elastic force will pull the connecting block 14 to return to its original position, which facilitates subsequent work.

[0016] The mounting sleeve 2 has a sliding connection to the connecting handle 3, and the mounting sleeve 2 has several limiting grooves 18.

[0017] Several limiting plates 19 are installed on the connecting handle 3. The limiting plates 19 are slidably engaged in the limiting groove 18. The mounting sleeve 2 and the limiting plates 19 have corresponding screw holes 20. Fixing bolts 21 are installed in the screw holes 20. Because of the fixing bolts 21, after the tool body 6 is installed, the operator installs the connecting handle 3 on the mounting sleeve 2. During this process, the limiting plates 19 installed on the connecting handle 3 will be engaged in the limiting groove 18. At this time, the limiting plates 19 and the screw holes 20 opened on the mounting sleeve 2 correspond. Then, the fixing bolts 21 are installed in the screw holes 20. Then, the connecting handle 3 is connected to the external machine tool, and subsequent processing can be carried out. The heat shrink tool holder can be installed quickly, which improves work efficiency.

[0018] A lead screw 10 is installed in the mounting hole 8. After the tool body 6 is fixed in the heat shrink tool holder, the lead screw 10 is rotated through the rotating hole 11 using a tool. The rotation of the lead screw 10 drives the top block 12 to move. The top block 12 will press the connecting block 14. The pressure will cause the connecting block 14 to move in the slot 7. The connecting block 14 will drive the clamping plate 15 installed on it to move until the clamping plate 15 is engaged in the slot 9. Then the subsequent installation work can be carried out. This can prevent the tool from accidentally falling off during the processing, avoid damage to the workpiece, and improve production efficiency.

[0019] The bottom of the lead screw 10 is provided with a rotating hole 11, and the clamping section 4 is provided with a number of heat conduction holes 17. Because of the presence of a number of heat conduction holes 17, during the process of heating the heat shrink tool holder by the heating device, the heat will quickly enter the clamping section 4 through the heat conduction holes 17, thereby accelerating the subsequent fixation speed of the tool body 6.

[0020] The end of the lead screw 10 is connected to the top block 12. Two clamping plates 15 are installed on the connecting block 14. Four clamping slots 9 are provided on the tool body 6. Two clamping slots 9 form a group, and the clamping plates 15 are clamped in the clamping slots 9.

[0021] The working principle of this utility model is as follows: When working, the operator places the heat shrink knife handle behind the heating device and heats it. Through the principle of thermal expansion and contraction, the knife body 6 is installed in the clamping groove 16. At this time, the positions of the several slots 9 opened on the knife body 6 correspond to the clamping plate 15. Then, the tool is used to rotate the lead screw 10 through the rotating hole 11. The rotation of the lead screw 10 drives the top block 12 connected to it to move. The movement of the top block 12 will squeeze the connecting block 14. The pressure will cause the connecting block 14 to move in the groove 7. The movement of the connecting block 14 will drive the clamping plate 15 installed on it to move until the clamping plate 15 is engaged in the slot 9. Then the subsequent installation work can be carried out. After the tool body 6 is installed, the operator installs the connecting handle 3 on the mounting sleeve 2. During this process, several limiting plates 19 installed on the connecting handle 3 will be engaged in the limiting groove 18. At this time, the limiting plates 19 correspond to the screw holes 20 opened on the mounting sleeve 2. Then, the fixing bolts 21 are installed in the screw holes 20. After that, the connecting handle 3 is connected to the external machine tool, and subsequent processing can be carried out.

[0022] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" 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.

[0023] The preferred embodiments of this patent have been described in detail above. However, this patent is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of this patent.

Claims

1. A heat-shrinkable tool holder with an anti-detachment structure, comprising a transition section (1), characterized in that: The transition section (1) is connected to the tail shank (5) and the clamping section (4). The clamping section (4) has a clamping groove (16). The tail shank (5) has a fixing groove (22). The position of the clamping groove (16) corresponds to the fixing groove (22). The tool body (6) is installed in the clamping groove (16) and the fixing groove (22). The tail shank (5) has two slots (7) and a mounting hole (8). The top block (12) and the connecting block (14) are slidably installed in the slots (7). The lead screw (10) is installed in the mounting hole (8). The end of the lead screw (10) is connected to the top block (12). The connecting block (14) has two clamping plates (15). The tool body (6) has four clamping slots (9). Two clamping slots (9) form a group. The clamping plates (15) are clamped in the clamping slots (9).

2. The heat-shrink knife handle with an anti-detachment structure according to claim 1, characterized in that: The bottom of the lead screw (10) is provided with a rotating hole (11), and the clamping section (4) is provided with a number of heat-conducting holes (17).

3. The heat-shrink knife handle with an anti-detachment structure according to claim 1, characterized in that: A reset spring (13) is connected between the connecting block (14) and the inner wall of the slot (7), and an installation sleeve (2) is fixedly installed on the tail shank (5).

4. The heat-shrink knife handle with an anti-detachment structure according to claim 3, characterized in that: The mounting sleeve (2) has a connecting handle (3) slidably connected inside, and the mounting sleeve (2) has several limiting grooves (18).

5. The heat-shrinkable knife holder with an anti-detachment structure according to claim 4, characterized in that: A plurality of limiting plates (19) are installed on the connecting handle (3), and the limiting plates (19) are slidably engaged in the limiting groove (18).

6. The heat-shrink knife holder with an anti-detachment structure according to claim 5, characterized in that: The mounting sleeve (2) and the limiting plate (19) are provided with corresponding screw holes (20), and fixing bolts (21) are installed in the screw holes (20).

Images