Coated cutter with cutter head convenient to replace

Abstract

The utility model discloses a coating cutter convenient to replace the cutter head, including cutter holder, be provided the clamping subassembly in the cutter holder and be provided the locking subassembly on the cutter holder side wall at the front side position of clamping subassembly, the clamping subassembly is provided with the inner groove in the cutter holder front side, the inner wall of the inner groove front end is equipped with a first bevel gear in the cooperation, and the locking subassembly is equipped with a second bevel gear in the cooperation with the first bevel gear. The locking assembly comprises an open groove formed in the surface of the front side of the tool apron, a positioning plate is movably installed in the lower side of the open groove, side grooves are formed in the surfaces of the left side and the right side of the open groove in a matched mode, and the inner wall of the left side and the inner wall of the right side of the open groove are provided with second bevel gears matched with the first bevel gears. And side plates matched with the side grooves are mounted on the left side wall and the right side wall of the positioning plate, so that the coating knife is conveniently and quickly replaced, and the replaced coating knife is reinforced.

Description

Technical Field

[0001] This utility model relates to the field of coated cutting tool technology, specifically a coated cutting tool with a convenient tool tip replacement. Background Technology

[0002] CNC cutting tools are tools used for cutting processes in mechanical manufacturing, also known as cutting tools. In a broad sense, cutting tools include both cutting tools and grinding wheels; in addition to the cutting inserts (tool heads), "CNC cutting tools" also include accessories such as tool holders and tool shanks.

[0003] An existing patent (publication number CN221603275U) discloses a diamond-coated cutting tool that facilitates tip replacement. When connecting the tool body to the connector, the tool body is pulled towards the connector, aligned with the connecting groove, and then inserted into the groove. A button is then pressed, causing it to slide along the inner wall of the groove. This movement of the button moves the connecting rod, which in turn moves the locking rod and elastic block. The locking rod is then inserted into the connecting rod, and the elastic block is locked into the slot for fixation. The spring's reaction force causes the button to return to its original position. The groove increases friction between the hand and the button, and the anti-slip sleeve increases friction between the locking rod and the connecting hole. This connection structure facilitates easy connection between the tool body and the connector.

[0004] However, there are some problems with the replacement process of existing coated cutters: 1. The current cutter head is fixed by a spring pushing the insert through the top of the cutter head during replacement. During the use of the cutter, vibration and shaking will exert force on the spring, causing the spring to loosen and affecting the stability of the cutter head replacement; 2. The insert component of the existing cutter head does not have a locking effect after replacement, which will cause loosening during use and affect the firmness of the replacement. Utility Model Content

[0005] The purpose of this invention is to provide a coated cutting tool with a convenient tool head replacement, so as to solve the problems mentioned in the background art.

[0006] To solve the above technical problems, the present invention provides the following technical solution: a coated cutting tool with a convenient tool head replacement, comprising a tool holder, a clamping assembly disposed inside the tool holder, and a locking assembly disposed on the side wall of the tool holder at the front side of the clamping assembly;

[0007] The clamping assembly includes an inner groove formed inside the front side of the tool holder, a first bevel gear is fitted on the inner wall of the front end of the inner groove, a knob is connected to the front end of the first bevel gear, and second bevel gears that cooperate with the first bevel gear are provided on the inner walls of the left and right sides of the inner groove.

[0008] The locking assembly includes a slot on the front surface of the tool holder, a positioning plate is movably installed inside the lower side of the slot, side slots are provided on the left and right sides of the slot, and side plates that cooperate with the side slots are installed on the left and right side walls of the positioning plate.

[0009] Preferably, the clamping assembly further includes sliding grooves formed on the left and right sides of the inner groove. A screw is installed inside the sliding groove near the inner groove, a sliding plate is fitted on the outer wall of the screw, and a card plate is installed on the side wall of the sliding plate away from the inner groove.

[0010] Preferably, the clamping assembly further includes a slot formed inside the center of the tool holder, in which an insert plate is detachably inserted, and the left and right side walls of the insert plate are provided with slots that cooperate with the clamping plate.

[0011] Preferably, the locking assembly further includes a hydraulic rod disposed inside the lower end of the slot, and a spring is fitted onto the outer wall of the hydraulic rod.

[0012] Preferably, a blade is fitted onto the lower surface of the insert plate.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] 1) When the cutter head needs to be replaced, the insert plate at the upper end of the replaced cutter head is inserted into the aligned slot. The knob is turned to drive the first bevel gear connected to it to rotate, which in turn drives the second bevel gear to rotate, which in turn drives the screw connected to it to rotate. The engagement drives the slide plate to move in the groove towards the slot, thereby driving the card plate installed on the side wall to insert into the card slots aligned on both sides of the insert plate. The cutter head can be quickly replaced and fixed in the cutter holder, which improves the convenience of replacement.

[0015] 2) After the blade head is fixed, the tension on the positioning plate is released, and the potential energy generated by the hydraulic rod and spring is released upward, pushing the side plate upward. Under the limitation of the side plate being embedded in the side groove, the positioning plate is driven to move vertically upward in the groove, so that the groove on the surface of the positioning plate is engaged in the toothed groove on the surface of the knob, thereby locking the knob, thus ensuring the firmness of the plate insertion and improving the stability of replacement. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of an embodiment of the present utility model;

[0017] Figure 2 This is a schematic diagram of the clamping assembly according to an embodiment of the present utility model;

[0018] Figure 3 This is an embodiment of the present utility model. Figure 2 A magnified schematic diagram of part A in the middle;

[0019] Figure 4This is a schematic diagram of the locking component according to an embodiment of the present invention.

[0020] In the diagram: 1. Tool holder; 201. Inner groove; 202. First bevel gear; 203. Knob; 204. Second bevel gear; 205. Slide groove; 206. Screw; 207. Slide plate; 208. Clamping plate; 209. Slot; 210. Insert plate; 211. Clamping groove; 301. Slot; 302. Positioning plate; 303. Side groove; 304. Side plate; 305. Hydraulic rod; 306. Spring; 4. Tool head. Detailed Implementation

[0021] To facilitate the solution of the problem, this utility model provides a coated cutting tool with a conveniently replaceable cutting head. The technical solutions of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments.

[0022] Example 1, as Figures 1 to 4 As shown, this embodiment provides a coated cutting tool with a convenient tool head replacement, including a tool holder 1, a clamping assembly disposed inside the tool holder 1, and a locking assembly disposed on the side wall of the tool holder 1 at the front side of the clamping assembly. The clamping assembly includes an inner groove 201 formed inside the front side of the tool holder 1. A first bevel gear 202 is fitted onto the inner wall of the front end of the inner groove 201. A knob 203 is connected to the front end of the first bevel gear 202. Second bevel gears 204 that mesh with the first bevel gear 202 are disposed on the inner walls of the left and right sides of the inner groove 201. Twisting the knob drives the first bevel gear connected to it to rotate, and meshing drives the second bevel gears 204 to rotate. The rotation of the wheel drives the connected screw to rotate, which in turn drives the slide plate to move towards the slot in the slide groove. This causes the retaining plate mounted on the side wall to insert into the slots aligned on both sides of the insert plate, allowing the cutter head to be quickly replaced and fixed in the cutter holder. The locking component includes a slot 301 on the front surface of the cutter holder 1. A positioning plate 302 is movably installed inside the lower side of the slot 301. Side grooves 303 are formed on the left and right sides of the slot 301. Side plates 304 that cooperate with the side grooves 303 are installed on the left and right sides of the positioning plate 302. The grooves on the surface of the positioning plate are engaged with the teeth on the surface of the knob, thus locking the knob.

[0023] In Example 2, in addition to all the technical features in Example 1, the clamping assembly also includes: sliding grooves 205 formed on the left and right sides of the inner groove 201. A screw 206 is installed inside the sliding groove 205 near the inner groove 201. A sliding plate 207 is fitted on the outer wall of the screw 206. A retaining plate 208 is installed on the side wall of the sliding plate 207 away from the inner groove 201. The screw 206 is driven to move the sliding plate 207 towards the inner groove 201 through the thread engagement of the outer wall of the screw 206, so that the retaining plate 208 can be efficiently inserted into the aligned retaining groove 211, thus completing the rapid fixation of the cutter head 4.

[0024] The clamping assembly also includes a slot 209 located inside the center of the tool holder 1. A plate 210 is detachably inserted into the slot 209. The left and right side walls of the plate 210 have slots 211 that cooperate with the clamping plate 208. The plate 210 located on the upper side of the tool head 4 is inserted into the aligned slot 209. The clamping plate 208 is inserted into the aligned slot 211, so that the tool head 4 is fixed after replacement.

[0025] The locking assembly also includes a hydraulic rod 305 disposed inside the lower end of the slot 301. A spring 306 is fitted on the outer wall of the hydraulic rod 305. When the knob 203 is turned, the potential energy of the spring 306 is released and the hydraulic rod 305 pushes upward together, causing the side plate 304 to move upward in the side slot 303, thereby driving the positioning plate 302 to move upward in the slot 301, and the teeth on the surface of the knob 203 are firmly locked by the locking mechanism.

[0026] The insert plate 210 has a blade head 4 installed on its lower surface. The blade head 4 can be removed by pulling the insert plate 210 out of the slot 209. The blade head 4 can be installed by inserting the insert plate 210 with the new blade head 4 upward into the slot 209.

[0027] When the cutter head 4 needs to be replaced, insert the upper end of the insert plate 210 of the replaced cutter head 4 into the aligned slot 209, turn the knob 203 to drive the connected first bevel gear 202 to rotate, meshing and driving the second bevel gear 204 to rotate, driving the connected screw 206 to rotate, meshing and driving the slide plate 207 to move in the slide groove 205 towards the slot 209, thereby driving the side-mounted retaining plate 208 to insert into the aligned retaining slots 211 on both sides of the insert plate 210, thus quickly replacing and fixing the cutter head 4 to the cutter holder. Within 1, the ease of replacement is improved. After the cutter head 4 is fixed, the tension on the positioning plate 302 is released, and the potential energy generated by the hydraulic rod 305 and the spring 306 is released upward, pushing the side plate 304 upward. With the side plate 304 embedded in the side groove 303, the positioning plate 302 moves vertically upward in the slot 301, so that the grooves on the surface of the positioning plate 302 are engaged in the teeth on the surface of the knob 203, thereby locking the knob 203 and ensuring the firmness of the insertion of the clamping plate 208, thus improving the stability of replacement.

[0028] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A coated cutting tool with a conveniently replaceable cutting head, characterized in that: Includes a tool holder (1), a clamping assembly disposed inside the tool holder (1), and a locking assembly disposed on the side wall of the tool holder (1) in front of the clamping assembly; The clamping assembly includes an inner groove (201) formed inside the front side of the tool holder (1). A first bevel gear (202) is fitted on the inner wall of the front end of the inner groove (201). A knob (203) is connected to the front end of the first bevel gear (202). Second bevel gears (204) that cooperate with the first bevel gear (202) are provided on the inner walls of the left and right sides of the inner groove (201). The locking assembly includes a slot (301) on the front surface of the tool holder (1), a positioning plate (302) is movably installed inside the lower side of the slot (301), side slots (303) are provided on the left and right sides of the slot (301), and side plates (304) that cooperate with the side slots (303) are installed on the left and right side walls of the positioning plate (302).

2. The coated cutting tool according to claim 1, characterized in that: The clamping assembly also includes sliding grooves (205) on the left and right sides of the inner groove (201). A screw (206) is installed inside the sliding groove (205) near the inner groove (201). A sliding plate (207) is fitted on the outer wall of the screw (206). A clamping plate (208) is installed on the side wall of the sliding plate (207) away from the inner groove (201).

3. The coated cutting tool according to claim 2, characterized in that: The clamping assembly also includes a slot (209) located inside the center of the tool holder (1). A plate (210) is detachably inserted into the slot (209). The left and right side walls of the plate (210) are provided with slots (211) that cooperate with the plate (208).

4. The coated cutting tool according to claim 1, characterized in that: The locking assembly also includes a hydraulic rod (305) disposed inside the lower end of the slot (301), and a spring (306) is fitted on the outer wall of the hydraulic rod (305).

5. The coated cutting tool according to claim 3, characterized in that: The blade (4) is fitted onto the lower surface of the insert plate (210).

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