CN115302405B

CN115302405B - Tool rest for quickly replacing polishing tools

Info

Publication number: CN115302405B
Application number: CN202211231241.8A
Authority: CN
Inventors: 蔡国栋
Original assignee: Suzhou Jieyue Hardware Machinery Co ltd
Current assignee: Suzhou Jieyue Hardware Machinery Co ltd
Priority date: 2022-10-10
Filing date: 2022-10-10
Publication date: 2023-03-24
Anticipated expiration: 2042-10-10
Also published as: CN115302405A

Abstract

The invention discloses a tool rest for quickly replacing a grinding tool, and relates to the field of grinding tool equipment. The tool rest for quickly replacing the grinding tool comprises a tool rest and a top cover arranged on the tool rest, wherein an L-shaped chute is formed in the tool rest, an L-shaped connecting plate is slidably arranged on the L-shaped chute, and a clamping block is arranged on the L-shaped connecting plate; the L-shaped connecting plate is provided with a brake plate, a tooth clamping groove is formed in the brake plate, the L-shaped connecting plate is provided with a fixed shaft block, the fixed shaft block is rotatably provided with a movable plate, and the movable plate is rotatably provided with a connecting shaft block. According to the invention, the clamping block and the pressing plate facilitate quick replacement of the cutter without a tool, and meanwhile, the installation stability of the cutter is improved. The cleaning of residual water and cutting scraps on the cutter and the lubrication and maintenance of the cutter frame are realized through the blower and the shielding plate, the service life of the cutter frame is prolonged, and the grinding precision of next use is prevented from being influenced.

Description

Tool rest for quickly replacing grinding tools

Technical Field

The invention relates to the technical field of grinding tool equipment, in particular to a tool rest for quickly replacing a grinding tool.

Background

The metal product is required to be polished in the production process, the polishing process is required to be operated by a special numerical control grinding machine, and the principle of the metal product is that a rotating workpiece is polished by installing corresponding cutters on a cutter frame and then sliding on a fixed track.

In the prior art, when a tool rest on a numerical control grinding machine is used, a nut for clamping a tool needs to be unscrewed through a special tool to replace the tool, and the tool rest is not convenient to use. The cutting scraps generated in the grinding process are attached to the cutter, and no cleaning device is used for cleaning after the grinding is finished, so that the cutting scraps are secondarily processed when the cutter is used next time, and the grinding accuracy of the workpiece is influenced. In addition, in order to lower the temperature during the polishing process, the cooling water on the cutter is not cleaned up after polishing, and residual water flows on the cutter frame through the cutter, has accelerated the corrosion of cutter frame, has shortened the life of cutter frame, and need artifical manual the top cap of cutter frame to unscrew when maintaining the cutter frame and scribble lubricating oil, has increased work load, and it is convenient inadequately to use.

Disclosure of Invention

The invention aims to provide a tool rest for quickly replacing a grinding tool, so as to solve the problem that the tool is inconvenient to replace in the use process of the tool rest for the grinding tool in the background technology.

To achieve the above objects, the present invention provides a tool holder for quick change of grinding tools, comprising a tool holder and a top cover mounted on the tool holder. The tool rest is provided with an L-shaped sliding groove, an L-shaped connecting plate is slidably mounted on the L-shaped sliding groove, and a clamping block is mounted on the L-shaped connecting plate; the L-shaped connecting plate is provided with a brake plate, the brake plate is provided with a tooth clamping groove, and the L-shaped connecting plate is provided with a fixed shaft block. The movable plate is rotatably mounted on the fixed shaft block, the connecting shaft block is rotatably mounted on the movable plate, the limiting groove is formed in the connecting shaft block, the movable plate is rotatably mounted in the limiting groove, the blocking piece is mounted on the fixed shaft block, and the blocking piece is in contact with the movable plate.

The connecting shaft block is provided with a pressing plate, the pressing plate is provided with a T-shaped block, the knife rest is provided with a T-shaped groove, and the T-shaped block is slidably arranged in the T-shaped groove. The knife rest is provided with a fixing column, the fixing column is provided with a sliding cavity, the sliding cavity is internally provided with a limiting circular plate in a sliding way, the limiting circular plate is provided with a telescopic shaft, and the telescopic shaft is provided with a locking block. Install on the locking piece and twist the piece, rotate on the fixed column and install transmitting gear, seted up same fixed slot on transmitting gear and the fixed column, locking piece movable mounting is in the fixed slot.

It should be noted that, when a tool needs to be replaced, the screwing block is lifted to drive the locking block to be separated from the fixing groove, and when the locking block is separated from the fixing groove, the telescopic shaft and the limiting circular plate arranged on the telescopic shaft are driven to compress the return spring. At the moment, the rotating gear is rotated, and then the braking plates on the two sides are driven to mutually keep away from sliding under the limiting action of the gear clamping groove, the braking plates are mutually kept away from each other, the L-shaped connecting plate is driven to slide in the L-shaped sliding groove in a sliding mode, and therefore the clamping blocks are driven to mutually keep away from sliding to loosen the two sides of the cutter. Meanwhile, the L-shaped connecting plates are far away from each other and slide to drive the movable plates on the two sides to move on the corresponding fixed shaft blocks and the corresponding connecting shaft blocks, so that the pressing plates slide in the direction far away from the cutter under the matching limiting action of the T-shaped blocks and the T-shaped grooves to loosen the top side of the cutter, and the cutter is convenient to take out. In addition, when the cutter is installed, the cutter is placed between the clamping block and the pressing plate, the rotating gear is rotated in the opposite direction according to the principle to clamp the cutter, the screwing block is loosened, the locking block is driven to fall into the fixing groove under the automatic resetting action of the reset spring to complete the fixing of the structure, and therefore the cutter can be quickly replaced without tools.

Further, in a preferred embodiment of the present invention, the tool holder is provided with a fixing ring, and the fixing ring is provided with a support frame. The hair drier is arranged on the support frame, the hollow chamber is provided with a blowing hole, and a connecting pipe of the hair drier is arranged in the blowing hole; the cavity chamber is rotatably provided with a rotating shaft. The rotating shaft is provided with a rotating page which is positioned at one side of the air blowing hole, and the rotating shaft is provided with a limiting block which is contacted with the cavity chamber; install the connecting plate in the axis of rotation, install the arc piece on the connecting plate, gu fixed ring goes up slidable mounting has the sliding plate, installs the adaptation arc piece on the sliding plate, adaptation arc piece and arc piece contact.

The sliding plate is provided with a mounting hole, a connecting hose is mounted in the mounting hole, the connecting hose is mounted in the cavity chamber, the cavity chamber is provided with an air outlet, the connecting hose is mounted in the air outlet, the fixing ring is provided with a sliding shaft, the sliding shaft is provided with a limiting blocking piece, and the sliding plate is slidably mounted on the sliding shaft.

It should be noted that, after the knife rest is used, the blower is started, the air of the blower is blown into the cavity chamber through the blowing hole to drive the rotating blade to rotate, and meanwhile, the air entering the cavity chamber enters the connecting hose through the air outlet hole. The rotating blade rotates to drive the rotating shaft to rotate in the through hole, the rotating shaft rotates to drive the connecting plate to rotate, and the connecting plate rotates to drive the arc-shaped block to rotate. When the arc-shaped block rotates to contact with the adaptive arc block, the arc-shaped block continues to rotate to drive the adaptive arc block to slide, and the adaptive arc block slides to drive the sliding plate to slide under the limiting action of the square groove and the sliding hole. And meanwhile, the compression spring is stretched, and the sliding plate slides to drive the connecting hose to slide on the top side of the mounted cutter. When the arc piece continues to rotate and keeps away from the nearest of adaptation arc piece, drive the sliding plate and slide towards opposite direction under compression spring's reset action to realize that the sliding plate drives coupling hose in the reciprocal slip of square inslot side of the cutter of installing, and then clear up remaining water and smear metal, prolonged the corrosion time of knife rest, prevent simultaneously to remain the smear metal and influence the precision of polishing when using next time.

Further, in a preferred embodiment of the present invention, the fixing ring is provided with a square groove, the sliding plate is slidably mounted in the square groove, and the sliding plate is provided with a sliding hole. The sliding shaft is slidably mounted in the sliding hole. The square groove and the sliding hole are matched to limit the movement of the sliding plate, the sliding plate can only slide in the square groove and the sliding hole, the sliding stability of the sliding plate is improved, and meanwhile the sliding hole is convenient for the movement of the compression spring.

Further, in a preferred embodiment of the present invention, the sliding shaft is movably sleeved with a compression spring, one end of the compression spring is installed on the sliding plate, and the other end of the compression spring is installed on the limiting stopper. Through compression spring's setting, realize continuing to rotate when keeping away from the nearest of adaptation arc piece at the arc piece, drive the sliding plate and slide towards opposite direction under compression spring's the effect that resets to realize the reciprocating sliding of sliding plate in square inslot.

Further, in a preferred embodiment of the present invention, the hollow chamber is provided with a through hole, and the rotating shaft is rotatably installed in the through hole. The through hole limits the movement of the rotating shaft, and the rotating shaft can only rotate in the through hole.

Further, in a preferred embodiment of the present invention, the top cover is provided with a lubricant cartridge, the rotating shaft is rotatably mounted on the lubricant cartridge, the rotating shaft is provided with a shielding plate, and the shielding plate is adapted to the lubricant cartridge. The shutter is driven to rotate on the inner wall of the bottom side of the lubricating oil box when the rotating shaft rotates. When the shielding plate rotates to the state that the leak hole is coincident with the adaptive hole, the lubricating oil in the lubricating oil box flows into the bearing in the top cover through the leak hole and the adaptive hole to be lubricated, so that the maintenance of the knife rest is facilitated.

Further, in a preferred embodiment of the present invention, the lubricating oil box and the top cover are provided with an adaptive hole, and the adaptive hole is located at the bottom side of the shielding plate. Through the arrangement of the adaptive hole, lubricating oil can conveniently flow into the bearing in the tool rest from the lubricating oil box.

Further, in the preferred embodiment of the present invention, the shielding plate is provided with a leakage hole, and the leakage hole is matched with the matching hole. Through the arrangement of the leak hole, when the leak hole is coincident with the adaptive hole, lubricating oil flows into the bearing in the tool rest from the lubricating oil box, and the tool rest is convenient to maintain.

Further, in a preferred embodiment of the present invention, the rotating shaft and the limiting block are provided with an oil groove, and the rotating shaft is provided with an oil hole which is communicated with the oil groove. Through the setting of oil groove and oilhole, realize the lubricating oil in the lubricating oil box and used up the back, made things convenient for the interpolation of lubricating oil through the oil groove, improved the practicality and the science of structure.

Further, in a preferred embodiment of the present invention, the telescopic shaft is movably sleeved with a return spring, one end of the return spring is mounted on the fixed column, and the other end of the return spring is mounted on the tool rest. Through reset spring's setting, realize changing the cutter after, loosen and twist the piece, drive the locking piece and fall into fixed slot internal fixation structure again under reset spring's the effect that resets, improved the use convenience and the degree of automation of structure.

According to the tool rest for quickly replacing the grinding tool, due to the arrangement of the clamping blocks and the pressing plate, when the tool needs to be replaced, after the locking blocks are lifted to be separated from the fixing grooves, the rotating gear drives the clamping blocks on the two sides to slide mutually and to be far away from the tool to be loosened. The sliding plate drives the movable plate to move in the sliding process, so that the pressing plate is driven to slide towards the direction away from the cutter to loosen the cutter, the cutter can be quickly replaced when no tool is available, and the use of the cutter frame is facilitated.

Further, according to the invention, through the arrangement of the blower and the related components thereof, when the polishing is finished, the blower is started to drive the rotating blade to rotate, so that the rotating shaft is driven to rotate, and the rotating shaft rotates to drive the connecting plate to rotate, so that the arc-shaped block is driven to rotate. The arc-shaped block drives the sliding plate to slide when rotating to be in contact with the sliding plate and is matched with the reset action of the compression spring to enable the sliding plate to slide in a reciprocating mode, the sliding plate slides in a reciprocating mode to drive the hose to slide in a reciprocating mode, water and chips remained on the surface of the cutter are cleaned, the corrosion time of the cutter frame is prolonged, and meanwhile the chips are prevented from being remained to influence polishing precision when the chips are used next time.

Furthermore, in the invention, through the arrangement of the shielding plate and the related components thereof, the shielding plate is driven to rotate when the rotary page rotates, so that when the leak hole on the shielding plate is superposed with the adaptive hole of the lubricating oil box and the top cover, the lubricating oil flows down from the top cover to lubricate the bearing inside the tool rest, the maintenance of the tool rest is facilitated, and the use of the tool rest is further facilitated. In addition, it should be noted that, in the invention, through the reasonable configuration of the oil groove and the oil hole, after the lubricating oil in the lubricating oil box is used up, the lubricating oil is added through the oil groove and flows into the lubricating oil box through the oil hole, thereby facilitating the addition of the lubricating oil and improving the use convenience and practicability of the knife rest.

Drawings

Fig. 1 is a schematic structural view of a tool holder for quick change of a grinding tool according to an embodiment of the present invention;

fig. 2 is a schematic structural diagram of a fixing ring for rapidly replacing a tool post of a grinding tool according to an embodiment of the invention;

fig. 3 is a schematic structural view of a clamping block for rapidly replacing a tool post of a grinding tool according to an embodiment of the invention;

fig. 4 is a schematic partial cross-sectional view of a fixing post for a tool post for quick change of a grinding tool according to an embodiment of the present invention;

fig. 5 is a schematic structural diagram of an L-shaped chute for rapidly replacing a tool post of a grinding tool according to an embodiment of the present invention;

FIG. 6 is a schematic view of a cavity for a tool holder for quick change of grinding tools according to an embodiment of the present invention;

FIG. 7 is a schematic view, partially in section, of a rotary shaft of a tool holder for quick change of sanding tools according to an embodiment of the present invention;

fig. 8 is a partial cross-sectional view of a sliding plate for a tool post for quick change of sanding tools according to an embodiment of the present invention.

In the figure: 01-a tool holder; 02-a top cover; a 03-L shaped chute; 04-L-shaped connecting plates; 05-clamping blocks; 06-a brake plate; 07-a gullet; 08-fixed shaft block; 09-a movable plate; 10-connecting the shaft block; 11-a limiting groove; 12-a baffle plate; 13-a platen; 14-T shaped blocks; 15-T type groove; 16-fixed column; 17-a sliding cavity; 18-a limiting circular plate; 19-a telescopic shaft; 20-a return spring; 21-a locking block; 22-screwing block; 23-a fixed groove; 24-a rotating gear; 25-a support frame; 26-a blower; 27-a hollow chamber; 28-air blowing holes; 29-rotating shaft; 30-page turning; 31-a limiting block; 32-a connecting plate; 33-arc-shaped blocks; 34-a fixed ring; 35-a slide plate; 36-an adaptive arc block; 37-mounting holes; 38-connecting hose; 39-air outlet holes; 40-a sliding shaft; 41-limiting blocking piece; 42-square groove; 43-sliding hole; 44-a compression spring; 45-through holes; 46-a lubricating oil cartridge; 47-a shutter; 48-fitting holes; 49-oil holes; 50-oil groove; 51-leak hole.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. The components of embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.

Referring to fig. 1 to 8, an embodiment of the present invention provides a tool rest for quickly replacing a polishing tool, including a tool rest 01 and a top cover 02 installed on the tool rest 01, the tool rest 01 is provided with an L-shaped sliding groove 03, the L-shaped sliding groove 03 is slidably installed with an L-shaped connecting plate 04, the L-shaped connecting plate 04 is provided with a clamping block 05, the L-shaped connecting plate 04 is provided with a braking plate 06, the braking plate 06 is provided with a tooth clamping groove 07, the L-shaped connecting plate 04 is provided with a fixed shaft block 08, the fixed shaft block 08 is rotatably installed with a movable plate 09, the movable plate 09 is rotatably installed with a connecting shaft block 10, the connecting shaft block 10 is provided with a limiting groove 11, the movable plate 09 is rotatably installed in the limiting groove 11, the fixed shaft block 08 is provided with a blocking piece 12, and the blocking piece 12 is in contact with the movable plate 09.

Furthermore, a pressing plate 13 is arranged on the connecting shaft block 10, a T-shaped block 14 is arranged on the pressing plate 13, a T-shaped groove 15 is formed in the tool rest 01, and the T-shaped block 14 is slidably arranged in the T-shaped groove 15; the knife rest 01 is provided with a fixing column 16, the fixing column 16 is provided with a sliding cavity 17, the sliding cavity 17 is internally provided with a limiting circular plate 18 in a sliding mode, the limiting circular plate 18 is provided with a telescopic shaft 19, the telescopic shaft 19 is provided with a locking block 21, the locking block 21 is provided with a twisting block 22, the fixing column 16 is rotatably provided with a rotating gear 24, the rotating gear 24 and the fixing column 16 are provided with a same fixing groove 23, and the locking block 21 is movably arranged in the fixing groove 23.

In the embodiment of the present invention, when the tool needs to be replaced, the lifting screw block 22 drives the locking block 21 to disengage from the fixing groove 23, and when the locking block 21 disengages from the fixing groove 23, the locking block drives the telescopic shaft 19 and the limit circular plate 18 mounted on the telescopic shaft 19 to compress the return spring 20. At this time, the rotating gear 24 is rotated, the braking plates 06 on the two sides are driven to slide away from each other under the limiting action of the cogging grooves 07, the braking plates 06 slide away from each other to drive the L-shaped connecting plate 04 to slide in the L-shaped sliding groove 03, and therefore the clamping blocks 05 are driven to slide away from each other to loosen the two sides of the cutter. Meanwhile, the L-shaped connecting plate 04 is far away from each other and slides to drive the two side movable plates 09 to move on the corresponding fixed shaft block 08 and the connecting shaft block 10, so that the pressing plate 13 slides to release the top side of the cutter in the direction far away from the cutter under the matching limiting effect of the T-shaped block 14 and the T-shaped groove 15, and the cutter is convenient to take out. In addition, when the cutter is installed, the cutter is placed between the clamping block 05 and the pressing plate 13, the rotating gear 24 is rotated in the opposite direction according to the principle, the cutter can be clamped, the screwing block 22 is loosened at the moment, and the locking block 21 is driven to fall into the fixing groove 23 under the automatic resetting action of the reset spring 20 to complete the structure fixing, so that the cutter can be quickly replaced without tools.

More specifically, with continuing reference to fig. 1-8, the knife holder 01 is provided with a fixing ring 34, the fixing ring 34 is provided with a support frame 25, the support frame 25 is provided with a blower 26, the blower 26 is provided with a hollow chamber 27, and the hollow chamber 27 is provided on the support frame 25. The hollow chamber 27 is provided with an air blowing hole 28, a connecting pipe of the blower 26 is arranged in the air blowing hole 28, the hollow chamber 27 is rotatably provided with a rotating shaft 29, and the rotating page 30 is arranged on the rotating shaft 29. The rotary blade 30 is positioned at one side of the air blowing hole 28, the rotating shaft 29 is provided with a limit block 31, and the limit block 31 is contacted with the hollow chamber 27. Rotating shaft 29 is provided with connecting plate 32, connecting plate 32 is provided with arc block 33, fixing ring 34 is provided with sliding plate 35 in a sliding manner, and sliding plate 35 is provided with adaptive arc block 36. The fitting arc block 36 is in contact with the arc block 33. The sliding plate 35 is provided with a mounting hole 37, a connecting hose 38 is mounted in the mounting hole 37, and the connecting hose 38 is mounted on the hollow chamber 27. The hollow chamber 27 is provided with an air outlet 39, and the connecting hose 38 is installed in the air outlet 39. A sliding shaft 40 is arranged on the fixed ring 34, a limiting baffle 41 is arranged on the sliding shaft 40, and the sliding plate 35 is arranged on the sliding shaft 40 in a sliding mode.

It should be noted that, after the tool rest 01 is used, the blower 26 is started, the air from the blower 26 is blown into the hollow chamber 27 through the air blowing hole 28 to drive the rotary blade 30 to rotate, and meanwhile, the air entering the hollow chamber 27 enters the connecting hose 38 through the air outlet 39. The rotary page 30 rotates to drive the rotating shaft 29 to rotate in the through hole 45, the rotating shaft 29 rotates to drive the connecting plate 32 to rotate, the connecting plate 32 rotates to drive the arc-shaped block 33 to rotate, the arc-shaped block 33 rotates to be in contact with the adaptive arc block 36 and then continuously rotates to drive the adaptive arc block 36 to slide, the adaptive arc block 36 slides to drive the sliding plate 35 to slide under the limiting action of the square groove 42 and the sliding hole 43 and simultaneously stretch the compression spring 44, and the sliding plate 35 slides to drive the connecting hose 38 to slide on the top side of the mounted cutter; when arc piece 33 continues to rotate and keeps away from the nearest of adaptation arc piece 36, drive sliding plate 35 and slide towards opposite direction under compression spring 44's the effect that resets, thereby realize sliding plate 35 reciprocating sliding in square groove 42, and then drive coupling hose 38 and reciprocating sliding in the cutter top side of installing, so reached and carried out the effect of clearing up remaining water and smear metal, thereby prolonged the corrosion time of knife rest 01, prevent simultaneously that the influence of remaining smear metal when using next time polishes the precision.

Further, in the embodiment of the present invention, please refer to fig. 1-8 with continued reference, the fixing ring 34 is provided with a square groove 42, the sliding plate 35 is slidably installed in the square groove 42, the sliding plate 35 is provided with a sliding hole 43, and the sliding shaft 40 is slidably installed in the sliding hole 43. It should be noted that the square groove 42 and the sliding hole 43 cooperate to limit the movement of the sliding plate 35, and the sliding plate 35 can only slide in the square groove 42 and the sliding hole 43, so as to increase the sliding stability of the sliding plate 35, and the sliding hole 43 facilitates the movement of the compression spring 44.

More specifically, referring to fig. 1-6, in the embodiment of the present invention, a compression spring 44 is movably sleeved on the sliding shaft 40, one end of the compression spring 44 is mounted on the sliding plate 35, and the other end of the compression spring 44 is mounted on the limit stopper 41. It should be noted that, through the arrangement of the compression spring 44, when the arc-shaped block 33 continues to rotate away from the nearest end of the adapting arc-shaped block 36, the sliding plate 35 is driven to slide in the opposite direction under the reset action of the compression spring 44, so that the sliding plate 35 slides in the square groove 42 in a reciprocating manner.

More specifically, referring to fig. 1-7, in the embodiment of the present invention, a through hole 45 is formed in the hollow chamber 27, and the rotating shaft 29 is rotatably installed in the through hole 45. It should be noted that the through hole 45 restricts the movement of the rotation shaft 29, and the rotation shaft 29 can only rotate in the through hole 45.

More specifically, in the embodiment of the present invention, with continued reference to fig. 1-7, the lubricating oil box 46 is mounted on the top cover 02, the rotating shaft 29 is rotatably mounted on the lubricating oil box 46, the shielding plate 47 is mounted on the rotating shaft 29, and the shielding plate 47 is adapted to the lubricating oil box 46. Note that the shutter 47 is driven to rotate on the bottom-side inner wall of the lubricating oil cartridge 46 when the rotating shaft 29 rotates. When the shielding plate 47 rotates until the leakage hole 51 is coincident with the adapting hole 48, the lubricating oil in the lubricating oil box 46 flows into the bearing in the top cover 02 through the leakage hole 51 and the adapting hole 48 for lubrication, and the maintenance of the tool rest 01 is facilitated.

More specifically, in the embodiment of the present invention, please refer to fig. 1-7 in combination, the lubricant box 46 and the top cover 02 are provided with an adaptive hole 48, and the adaptive hole 48 is located at the bottom side of the shielding plate 47. It should be noted that the provision of the adapter bore 48 facilitates the flow of lubricant from the lubricant cartridge 46 to the bearings in the tool holder 01.

More specifically, in the embodiment of the present invention, with continuing reference to fig. 1-7, the shielding plate 47 is provided with a leakage hole 51, and the leakage hole 51 is matched with the matching hole 48. By providing the leak hole 51, when the leak hole 51 and the fitting hole 48 are aligned, the lubricating oil flows from the lubricating oil cartridge 46 into the bearing in the tool holder 01, and maintenance of the tool holder 01 is facilitated.

More specifically, in the embodiment of the present invention, please refer to fig. 1 to 7, the same oil groove 50 is formed on the rotating shaft 29 and the limiting block 31, the oil hole 49 is formed on the rotating shaft 29, and the oil hole 49 is communicated with the oil groove 50. It should be noted that, through the arrangement of the oil groove 50 and the oil hole 49, after the lubricating oil in the lubricating oil box 46 is used up, the oil groove 50 facilitates the addition of the lubricating oil, and the practicability and the scientificity of the structure are improved.

It should be further noted that, in the embodiment of the present invention, a return spring 20 is movably sleeved on the telescopic shaft 19, one end of the return spring 20 is mounted on the fixed column 16, and the other end of the return spring 20 is mounted on the tool rest 01. Through reset spring 20's setting, realize changing the cutter after, loosen and twist piece 22, drive locking block 21 and fall into fixed slot 23 internal fixation structure again under reset spring 20's reset effect, improved the use convenience and the degree of automation of structure.

In summary, the working principle of the tool holder for rapidly replacing the grinding tool provided by the embodiment of the invention is as follows: when a tool needs to be replaced, the screwing block 22 is lifted to drive the locking block 21 to be separated from the fixing groove 23, the locking block 21 drives the telescopic shaft 19 and the limiting circular plate 18 arranged on the telescopic shaft 19 to compress the return spring 20 when being separated from the fixing groove 23, the rotating gear 24 is rotated at the moment, the braking plates 06 on two sides are driven to mutually keep away from sliding under the limiting effect of the tooth clamping groove 07, the braking plates 06 mutually keep away from sliding to drive the L-shaped connecting plate 04 to slide in the L-shaped sliding groove 03, and therefore the clamping block 05 is driven to mutually keep away from sliding to loosen two sides of the tool; meanwhile, the L-shaped connecting plate 04 is far away from each other and slides to drive the two side movable plates 09 to move on the corresponding fixed shaft block 08 and the connecting shaft block 10, so that the pressing plate 13 slides to loosen the top side of the cutter in the direction far from the cutter under the matching limiting effect of the T-shaped block 14 and the T-shaped groove 15, and the cutter is convenient to take out;

further, when the cutter is installed, the cutter is placed between the clamping block 05 and the pressing plate 13, the rotating gear 24 is rotated in the opposite direction according to the principle, the cutter can be clamped, the screwing block 22 is loosened, the locking block 21 is driven to fall into the fixing groove 23 under the automatic resetting action of the resetting spring 20, and the fixing of the structure is completed, so that the cutter can be quickly replaced when the cutter is not needed; in addition, after the tool rest 01 is used, the blower 26 is started, the air of the blower 26 is blown into the hollow chamber 27 through the air blowing hole 28 to drive the rotary blade 30 to rotate, meanwhile, the air entering the hollow chamber 27 enters the connecting hose 38 through the air outlet hole 39, the rotary blade 30 rotates to drive the rotating shaft 29 to rotate in the through hole 45, the rotating shaft 29 rotates to drive the connecting plate 32 to rotate, the connecting plate 32 rotates to drive the arc-shaped block 33 to rotate, the arc-shaped block 33 continues to rotate to drive the adaptive arc-shaped block 36 to slide when contacting the adaptive arc-shaped block 36 when rotating, the adaptive arc-shaped block 36 slides to drive the sliding plate 35 to slide under the limiting action of the square groove 42 and the sliding hole 43 and simultaneously stretch the compression spring 44;

further, the sliding plate 35 slides to drive the connecting hose 38 to slide on the top side of the mounted tool, when the arc block 33 continues to rotate and is far away from the nearest end of the adaptive arc block 36, the sliding plate 35 is driven to slide in the opposite direction under the reset action of the compression spring 44, so that the sliding plate 35 is driven to slide in the square groove 42 in a reciprocating manner, the connecting hose 38 is driven to slide in a reciprocating manner on the top side of the mounted tool, so that residual water and cutting chips are cleaned, the corrosion time of the tool rest 01 is prolonged, and the grinding precision of the residual cutting chips is prevented from being influenced when the residual cutting chips are used next time;

furthermore, when the rotating shaft 29 rotates, the shielding plate 47 is driven to rotate on the inner wall of the bottom side of the lubricating oil box 46, and when the shielding plate 47 rotates until the leakage hole 51 is overlapped with the adapting hole 48, the lubricating oil in the lubricating oil box 46 flows into the bearing in the top cover 02 through the leakage hole 51 and the adapting hole 48 for lubrication, so that the maintenance of the tool holder 01 is facilitated, and the overall operation efficiency and the service life of the tool holder provided by the embodiment of the invention are further improved.

The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solution of the present invention is equivalent to or changed according to the technical solution of the present invention.

Claims

1. A tool holder for quick change sanding tools, comprising: the tool comprises a tool rest (01) and a top cover (02) arranged on the tool rest (01), wherein an L-shaped sliding groove (03) is formed in the tool rest (01), an L-shaped connecting plate (04) is arranged on the L-shaped sliding groove (03) in a sliding mode, and a clamping block (05) is arranged on the L-shaped connecting plate (04);

the L-shaped connecting plate (04) is provided with a braking plate (06), a tooth clamping groove (07) is formed in the braking plate (06), a fixed shaft block (08) is mounted on the L-shaped connecting plate (04), a movable plate (09) is rotatably mounted on the fixed shaft block (08), a connecting shaft block (10) is rotatably mounted on the movable plate (09), a limiting groove (11) is formed in the connecting shaft block (10), the movable plate (09) is rotatably mounted in the limiting groove (11), a blocking piece (12) is mounted on the fixed shaft block (08), and the blocking piece (12) is in contact with the movable plate (09);

a pressing plate (13) is mounted on the connecting shaft block (10), a T-shaped block (14) is mounted on the pressing plate (13), a T-shaped groove (15) is formed in the tool rest (01), and the T-shaped block (14) is slidably mounted in the T-shaped groove (15); a fixing column (16) is mounted on the tool rest (01), a sliding cavity (17) is formed in the fixing column (16), a limiting circular plate (18) is mounted in the sliding cavity (17) in a sliding mode, a telescopic shaft (19) is mounted on the limiting circular plate (18), a locking block (21) is mounted on the telescopic shaft (19), and a screwing block (22) is mounted on the locking block (21); a rotating gear (24) is rotatably mounted on the fixing column (16), the rotating gear (24) and the fixing column (16) are provided with a same fixing groove (23), and the locking block (21) is movably mounted in the fixing groove (23);

the hair dryer is characterized in that a fixing ring (34) is installed on the knife rest (01), a support frame (25) is installed on the fixing ring (34), a hair dryer (26) is installed on the support frame (25), a hollow chamber (27) is installed on the hair dryer (26), and the hollow chamber (27) is installed on the support frame (25); the air blowing device is characterized in that the hollow chamber (27) is provided with an air blowing hole (28), a connecting pipe of the air blower (26) is installed in the air blowing hole (28), the hollow chamber (27) is rotatably provided with a rotating shaft (29), the rotating shaft (29) is provided with a rotating blade (30), the rotating blade (30) is positioned on one side of the air blowing hole (28), the rotating shaft (29) is provided with a limiting block (31), and the limiting block (31) is in contact with the hollow chamber (27);

a connecting plate (32) is mounted on the rotating shaft (29), an arc-shaped block (33) is mounted on the connecting plate (32), a sliding plate (35) is slidably mounted on the fixed ring (34), an adaptive arc block (36) is mounted on the sliding plate (35), and the adaptive arc block (36) is in contact with the arc-shaped block (33); the sliding plate (35) is provided with a mounting hole (37), a connecting hose (38) is mounted in the mounting hole (37), the connecting hose (38) is mounted on the hollow chamber (27), the hollow chamber (27) is provided with an air outlet hole (39), and the connecting hose (38) is mounted in the air outlet hole (39); a sliding shaft (40) is mounted on the fixed ring (34), a limiting blocking piece (41) is mounted on the sliding shaft (40), and the sliding plate (35) is slidably mounted on the sliding shaft (40);

a square groove (42) is formed in the fixing ring (34), the sliding plate (35) is slidably mounted in the square groove (42), a sliding hole (43) is formed in the sliding plate (35), and the sliding shaft (40) is slidably mounted in the sliding hole (43);

a compression spring (44) is movably sleeved on the sliding shaft (40), one end of the compression spring (44) is installed on the sliding plate (35), and the other end of the compression spring (44) is installed on the limiting blocking sheet (41);

a through hole (45) is formed in the hollow chamber (27), and the rotating shaft (29) is rotatably mounted in the through hole (45).

2. The tool holder for quick change sanding tools of claim 1 wherein: install lubricating oil box (46) on top cap (02), axis of rotation (29) are rotated and are installed on lubricating oil box (46), install sunshade (47) on axis of rotation (29), sunshade (47) with lubricating oil box (46) looks adaptation.

3. A tool holder for quick change of sanding tools according to claim 2, characterized in that: the lubricating oil box (46) and the top cover (02) are provided with adaptive holes (48), and the adaptive holes (48) are located on the bottom side of the shielding plate (47).

4. The tool holder for quick change sanding tools of claim 3, wherein: the shielding plate (47) is provided with a leakage hole (51), and the leakage hole (51) is matched with the matching hole (48).

5. The tool holder for quick change sanding tools of claim 1, wherein: the rotating shaft (29) and the limiting block (31) are provided with the same oil groove (50), an oil hole (49) is formed in the rotating shaft (29), and the oil hole (49) is communicated with the oil groove (50).

6. The tool holder for quick change sanding tools of claim 1 wherein: a return spring (20) is movably sleeved on the telescopic shaft (19), one end of the return spring (20) is installed on the fixed column (16), and the other end of the return spring (20) is installed on the tool rest (01).