Anti-falling type graver head fastening structure

Abstract

The utility model discloses an anti-drop graver head fastening structure, which relates to the technical field of numerical control graver heads and comprises a connecting cutter handle and a mounting disc fixedly arranged at the lower end of the connecting cutter handle, the lower end of the mounting disc is rotatably connected with an adjusting turntable, and the adjusting turntable is fixedly connected with the mounting disc through a fixing component. An adjusting cavity is formed in the adjusting rotary disc, and the tool bit is arranged in the adjusting cavity and fixedly connected with the mounting disc through a clamping mechanism. According to the anti-disengaging type carving tool bit fastening structure, the clamping blocks can be inserted into the clamping grooves at the same time by rotating the adjusting rotary disc, the anti-disengaging type carving tool bit fastening structure is suitable for tool bit structures with different radius sizes, the trapezoidal blocks can automatically enter the trapezoidal grooves through the elastic assemblies, and then the tool bits are fastened; and the electric push rod is arranged, so that the structure can adapt to the tool bits with different lengths, and good practicability is achieved.

Description

TECHNICAL FIELD

[0001] The utility model relates to numerical control engraving tool bit technical field, specifically is a kind of anti-type engraving tool bit fastening structure. BACKGROUND

[0002] Numerical control engraving machine is the numerical control equipment of wood, metal etc. Material carries out relief, flat carving, openwork engraving etc. Operation, with the advantages of fast engraving speed, high precision, when numerical control engraving machine is engraved, often need to use tool bit, but the existing numerical control engraving tool bit does not have better fastening structure, leading to the loosening of tool bit in the use process, and then make tool bit fall off and cause damage, bring more trouble to numerical control processing work, and the existing fastening structure is more complex, mostly fixed by multiple bolts, it is inconvenient to quickly disassemble and install.

[0003] Based on this, now provide a kind of anti-type engraving tool bit fastening structure, can eliminate the drawbacks of prior art. UTILITY MODEL CONTENT

[0004] The utility model aims at providing a kind of anti-type engraving tool bit fastening structure to solve the problem of loosening of tool bit in the use process and inconvenient quick installation in the background art.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical scheme:

[0006] A kind of anti-type engraving tool bit fastening structure, including connecting tool handle and the installation disc of fixed setting at its lower end, the lower end of the installation disc is rotatably connected with adjusting turntable, the adjusting turntable is fixedly connected with installation disc by fixed component, the inside of the adjusting turntable is provided with adjusting cavity, further including the tool bit of setting in adjusting cavity, the tool bit is fixedly connected with installation disc by clamping mechanism;

[0007] The fixed component includes the arc slot of being opened in the inside of installation disc, the connecting rod is slidably arranged in the arc slot, the connecting rod is fixedly connected with the top of adjusting turntable, the top of the connecting rod is provided with limit block, the limit block is fixedly connected with installation disc by several bolts.

[0008] Preferably, the clamping mechanism comprises an annular gear fixedly installed on the inner wall of the adjusting cavity, a plurality of bevel gears are arranged in meshing relation on one side of the annular gear, a threaded sleeve is fixedly connected to the side of each bevel gear away from the annular gear, a screw rod is threadedly arranged in the threaded sleeve, a protection box is fixedly connected to one end of the screw rod, an electric push rod is arranged in the protection box, the output end of the electric push rod extends to the outside of the protection box and is fixedly connected with a clamping block, a plurality of clamping grooves are formed in the surface of the tool bit, the clamping block is in sliding connection with the clamping grooves, the specifications, sizes and number of the clamping grooves and the clamping block are matched, and an elastic assembly is arranged in the clamping block to increase the structural stability.

[0009] Preferably, the elastic assembly comprises a moving groove formed in the clamping block, a moving plate is slidably arranged in the moving groove, the moving plate is fixedly connected to the bottom wall of the moving groove through a plurality of springs, a trapezoidal block is arranged on the side of the moving plate close to the tool bit, the trapezoidal block is in sliding connection with the moving groove, and a trapezoidal groove matched with the trapezoidal block is arranged at the upper end of the clamping groove and communicates with the clamping groove.

[0010] Preferably, a plurality of supporting blocks are fixedly arranged on the lower surface of the mounting disc and are in rotary connection with the threaded sleeves.

[0011] Preferably, an opening for mounting the tool bit is formed in the lower surface of the adjusting turntable.

[0012] Preferably, the number of the bevel gears is four.

[0013] Preferably, a sliding block is fixedly arranged on the top of the protection box, a plurality of sliding grooves are formed in the lower surface of the mounting disc, and the sliding block is in sliding connection with the sliding grooves.

[0014] Preferably, a plurality of anti-skid strips are uniformly arranged on the outer side of the adjusting turntable.

[0015] Compared with the prior art, the utility model has the advantages that:

[0016] In the utility model, under the cooperation of the annular gear and the bevel gears, rotating the adjusting turntable can simultaneously insert a plurality of clamping blocks into the clamping grooves, so that the tool bit can be conveniently mounted and dismounted, the labor degree of the user is reduced, and the structure is suitable for tool bits of different radius sizes and is relatively simple. The elastic assembly is arranged, so that the trapezoidal block can automatically enter the trapezoidal groove, thereby realizing the fastening operation of the tool bit and avoiding the falling of the tool bit during use. The electric push rod is arranged, so that the structure can adapt to tool bits of different lengths and has good practicability. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 It is a structural schematic view of one side of the utility model.

[0018] Figure 2 It is the internal structure schematic view of the utility model.

[0019] Figure 3 It is the structure schematic view of the utility model. Figure 2 It is the enlarged view of A place in the middle.

[0020] Figure 4 It is the structure schematic view of the utility model.

[0021] Figure 5 It is the structure schematic view of the clamping mechanism of the utility model.

[0022] Figure 6 It is the structure schematic view of the mounting disc of the utility model.

[0023] Figure 7 It is the internal structure schematic view of the mounting disc of the utility model.

[0024] Figure 8 It is the internal structure schematic view of the adjusting turntable of the utility model.

[0025] Figure 9 It is the internal structure schematic view of the cutter head of the utility model.

[0026] Figure 10 It is the structure schematic view of embodiment 2 of the utility model.

[0027] Mark annotation: 101, connecting cutter handle;102, mounting disc;103, adjusting turntable;104, adjusting cavity;105, cutter head;106, arc-shaped groove;107, connecting rod;108, support block;200, clamping mechanism;201, ring gear;202, bevel gear;203, threaded sleeve;204, screw;205, protection box;206, electric push rod;207, clamping block;208, clamping groove;209, moving groove;210, moving plate;211, trapezoidal block;212, trapezoidal groove;213, sliding block. Specific implementation

[0028] In order to make the purpose, technical scheme and advantage of the utility model more clearly, the following is combined with the drawings and embodiment, and the utility model is further detailed. Embodiment

[0029] In this embodiment, as Figures 1-9As shown, a kind of anti-falling engraving tool head fastening structure, including connecting tool handle 101 and the installation disc 102 fixedly arranged in its lower end, connecting tool handle 101 upper end is connected with numerical control engraving machine, it is convenient to be connected with electronic component, to realize engraving operation in turn, the lower end of installation disc 102 is rotatably connected with adjusting turntable 103, recess and convex block are arranged between installation disc 102 and adjusting turntable 103, to realize the effect of rotation, adjusting turntable 103 is fixedly connected with installation disc 102 by fixed assembly, so that after installing tool head 105, the position between installation disc 102 and adjusting turntable 103 can be fixed, avoid the situation that tool head 105 falls off, reduce the probability of accident, adjusting turntable 103 is internally provided with adjusting cavity 104, further including tool head 105 being arranged in adjusting cavity 104, tool head 105 is fixedly connected with installation disc 102 by clamping mechanism 200, before anti-falling engraving tool head fastening structure starts to use, first check whether the structure can be used normally, then according to the specification of tool head 105, clamping mechanism 200 is adjusted, so that the structure enters standby state;

[0030] Fixed assembly includes the arc slot 106 being opened in the inside of installation disc 102, the connecting rod 107 is slidably arranged in the inside of arc slot 106, the connecting rod 107 is fixedly connected with the top of adjusting turntable 103, the top of connecting rod 107 is provided with limiting block, limiting block is fixedly connected with installation disc 102 by a plurality of bolts, installation disc 102 can be provided with a plurality of threaded holes, increase structural stability, it is convenient to fix the position of adjusting turntable 103, and arc slot 106 is set to 180 ° semicircle, it is convenient to adjust the rotation angle of adjusting turntable 103, avoid the situation that screw rod 204 is jammed due to rotation angle is too large.

[0031] Among them, as Figures 2-9As shown, the clamping mechanism 200 comprises an annular gear 201 fixedly installed on the inner wall of the adjusting cavity 104, one side of the annular gear 201 is engaged with a plurality of bevel gears 202, the side away from the annular gear 201 of each bevel gear 202 is fixedly connected with a threaded sleeve 203, the inside of the threaded sleeve 203 is threadedly provided with a screw rod 204, one end of the screw rod 204 is fixedly connected with a protective box 205 to avoid damage to the electric push rod 206 and play a protective role, the inside of the protective box 205 is provided with an electric push rod 206, the electric push rod 206 can drive the clamping block 207 to extend or retract, adapt to different types of tool bit structures, the output end of the electric push rod 206 extends to the outside of the protective box 205 and is fixedly connected with the clamping block 207, the surface of the tool bit 105 is provided with a plurality of clamping grooves 208, the clamping block 207 is slidably connected with the clamping groove 208, the user rotates the adjusting turntable 103 to drive the annular gear 201 to rotate, and then under the cooperation of meshing transmission, the plurality of bevel gears 202 and the threaded sleeve 203 are rotated, the screw rod 204 can move along the direction of the threaded sleeve 203, the protective box 205 and the clamping block 207 are conveniently pushed to the corresponding position, the clamping block 207 is conveniently clamped into the clamping groove 208, thereby the tool bit 105 is fastened, the specifications, sizes and quantities of the clamping groove 208 and the clamping block 207 are adapted, the inside of the clamping block 207 is provided with an elastic assembly for increasing structural stability, and the fastening effect on the tool bit 105 is increased.

[0032] As shown in Figure 2 , Figure 3 and Figure 9 , the elastic assembly comprises a moving groove 209 formed in the inside of the clamping block 207, a moving plate 210 is slidably arranged in the inside of the moving groove 209, when the tool bit 105 needs to be replaced, the moving plate 210 is pressed to separate the trapezoidal block 211 from the trapezoidal groove 212, the moving plate 210 is fixedly connected with the bottom wall of the moving groove 209 through a plurality of springs, under the natural state, the trapezoidal block 211 is extended to the outside of the moving groove 209 through the action force of the spring, the clamping block 207 is conveniently clamped with the trapezoidal groove 212, thereby the fastening effect on the tool bit 105 in the horizontal direction is achieved, the side close to the tool bit 105 of the moving plate 210 is provided with the trapezoidal block 211, the trapezoidal block 211 is slidably connected with the moving groove 209, the upper end of the clamping groove 208 is provided with the trapezoidal groove 212 adapted with the trapezoidal block 211, the trapezoidal groove 212 is communicated with the clamping groove 208 to avoid the tool bit 105 from falling off.

[0033] As shown in Figure 2 and Figure 4As shown, several support blocks 108 are fixedly installed on the lower surface of the mounting plate 102. The support blocks 108 are rotatably connected to the threaded sleeve 203 to restrict the position of the bevel gear 202, so as to avoid the bevel gear 202 being unable to mesh with the ring gear 201, thereby affecting the structural performance.

[0034] Among them, such as Figure 8 As shown, the lower surface of the adjusting turntable 103 has an opening for installing the cutter head 105, which makes it easy for the user to install the cutter head 105 inside the adjusting turntable 103, ensuring the normal use of the structure, and can adapt to cutter heads 105 of different sizes and specifications, making it easy to replace.

[0035] Among them, such as Figure 5 As shown, the number of bevel gears 202 is set to 4. The number of bevel gears 202 and the locking block 207 is limited to avoid the need to open more slots 208 on the surface of the cutter head 105 due to the excessive number, which would affect the structural stability.

[0036] Among them, such as Figure 2 and Figure 5 As shown, the top of the protective box 205 is fixedly equipped with a slider 213, and the lower surface of the mounting plate 102 is provided with several sliding grooves. The slider 213 is slidably connected to the sliding grooves, so that there is a connection between the protective box 205 and the mounting plate 102. The sliding grooves guide the slider 213 and the protective box 205, so that the locking block 207 can be smoothly locked into the slot 208. Example

[0037] The difference from Example 1 is that, as in Example 2, ... Figure 10 As shown, several anti-slip strips are evenly arranged on the outer side of the adjusting turntable 103, which makes it easy to distinguish the adjusting turntable 103 from the mounting plate 102, facilitates the rotation of the adjusting turntable 103 when changing the cutter head 105, and increases the friction area on the surface of the adjusting turntable 103, improving the friction effect and making it easier to rotate the adjusting turntable 103.

[0038] In use, the user first adjusts the extension distance of the electric push rod 206 according to the specifications of the cutter head 105, then aligns the slot 208 of the cutter head 105 with the position of the locking block 207, and rotates the adjusting turntable 103 with the other hand, so that the ring gear 201 drives the bevel gear 202 to mesh and transmit power, thereby causing the screw 204 to move along the direction of the threaded sleeve 203, so that several locking blocks 207 can be locked into the slot 208. With the cooperation of the spring, the trapezoidal block 211 can smoothly contact the trapezoidal groove 212, thereby achieving multiple fastening operations of the cutter head 105 in the vertical and horizontal directions. Then, the bolt is inserted into the limit block to fix the position of the adjusting turntable 103. The overall structure is simple and has good practicality.

[0039] The above merely provides the specific implementation of the present application, but the protection scope of the present application is not limited to this. Any person skilled in the art can easily think of the changes or replacements within the technical range disclosed by the present application, which should be covered in the protection scope of the present application. Therefore, the protection scope of the present application should be subject to the protection scope of the claims.

Claims

1. A anti-off engraving tool bit fastening structure, comprising a connecting tool handle (101) and a mounting disc (102) fixedly arranged at the lower end thereof, the lower end of the mounting disc (102) is rotatably connected with an adjusting turntable (103), the adjusting turntable (103) is fixedly connected with the mounting disc (102) through a fixing assembly, and the inside of the adjusting turntable (103) is provided with an adjusting cavity (104); characterized in that Further comprising a tool bit (105) arranged in the adjusting cavity (104), the tool bit (105) is fixedly connected with the mounting disc (102) through a clamping mechanism (200); The fixing assembly comprises an arc-shaped slot (106) opened in the inside of the mounting disc (102), the inside of the arc-shaped slot (106) is slidably provided with a connecting rod (107), the connecting rod (107) is fixedly connected with the top of the adjusting turntable (103), and the top of the connecting rod (107) is provided with a limiting block, and the limiting block is fixedly connected with the mounting disc (102) through a plurality of bolts.

2. The anti-release type carving tool bit fastening structure according to claim 1, characterized by The clamping mechanism (200) comprises a ring gear (201) fixedly arranged on the inner wall of the adjusting cavity (104), a plurality of bevel gears (202) are arranged on one side of the ring gear (201), the side, away from the ring gear (201), of each bevel gear (202) is fixedly connected with a threaded sleeve (203), the inside of the threaded sleeve (203) is threadedly provided with a screw rod (204), one end of the screw rod (204) is fixedly connected with a protection box (205), the inside of the protection box (205) is provided with an electric push rod (206), the output end of the electric push rod (206) extends to the outside of the protection box (205) and is fixedly connected with a clamping block (207), a plurality of clamping grooves (208) are opened on the surface of the tool bit (105), the clamping block (207) is slidably connected with the clamping grooves (208), the specifications, sizes and quantities of the clamping grooves (208) and the clamping block (207) are matched, and the inside of the clamping block (207) is provided with an elastic assembly for increasing structural stability.

3. The anti-release, carving tool bit fastening structure according to claim 2, characterized by The elastic assembly comprises a moving slot (209) opened in the inside of the clamping block (207), a moving plate (210) is slidably arranged in the inside of the moving slot (209), the moving plate (210) is fixedly connected with the bottom wall of the moving slot (209) through a plurality of springs, a trapezoidal block (211) is arranged on the side, close to the tool bit (105), of the moving plate (210), the trapezoidal block (211) is slidably connected with the moving slot (209), the upper end of the clamping groove (208) is provided with a trapezoidal groove (212) matched with the trapezoidal block (211), and the trapezoidal groove (212) is in communication with the clamping groove (208).

4. The anti-release carving tool bit fastening structure according to claim 2, characterized by A plurality of supporting blocks (108) are fixedly arranged on the lower surface of the mounting disc (102), and the supporting blocks (108) are rotatably connected with the threaded sleeves (203).

5. The anti-backout carving tool bit fastening structure according to claim 1, characterized by An opening for mounting the tool bit (105) is opened on the lower surface of the adjusting turntable (103).

6. The anti-release, carving tool bit fastening structure according to claim 2, wherein The number of the bevel gears (202) is four.

7. The anti-backout carving tool bit fastening structure according to claim 2, characterized by The top of the protection box (205) is fixedly provided with a sliding block (213), and the lower surface of the mounting disc (102) is provided with a plurality of sliding grooves, and the sliding block (213) is in sliding connection with the sliding grooves.

8. The anti-backout carving tool bit fastening structure according to claim 1, characterized by The outer side of the adjusting turntable (103) is uniformly provided with a plurality of anti-skid strips.

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