Cutter clamping device for numerical control machine tool

Abstract

The cutter clamping device for the numerical control machine tool comprises a mounting rod, a first mounting groove, a second mounting groove and a third mounting groove are formed in the mounting rod and are sequentially distributed from right to left, a discharging piece is arranged in the second mounting groove, and a discharging piece is arranged in the third mounting groove. Clamping pieces are mounted in the first mounting groove and the third mounting groove, the tool is arranged in the first mounting groove, the clamping pieces are used for fixing the tool in the first mounting groove, and each clamping piece comprises a driving mechanism, a pulling rod, a lower pressing plate and an inclined plate. According to the tool fixing device, a tool can be fixed in multiple directions, it is guaranteed that the tool is always in a stable state in the working process of the numerical control machine tool, the purpose of fixing the tool can be achieved by matching the driving mechanism, the pull rod, the lower pressing plate and the inclined plate with the side wall of the first mounting groove, and the tool is prevented from shaking or shifting in the working process; and the safety and the stability of the cutter in the working process are greatly ensured.

Description

Technical Field

[0001] The invention belongs to the technical field of numerically controlled machine tools, and in particular relates to a tool clamping device for numerically controlled machine tools. Background Art

[0002] CNC machine tools are mainly used for cutting inner and outer cylindrical surfaces of shaft parts or disk parts, inner and outer conical surfaces of arbitrary taper angles, complex rotating inner and outer curved surfaces, and cylindrical and conical threads, and can perform grooving, drilling, reaming, reaming and boring, etc. CNC machine tools can automatically process the parts to be processed according to the pre-compiled processing program. The operator will compile the processing route, process parameters, tool movement trajectory, displacement, cutting parameters and auxiliary functions of the parts into a processing program sheet in advance according to the instruction code and program format specified by the CNC machine tool, and then record the contents of the processing program sheet on the control medium, and then input it into the CNC device of the CNC machine tool, thereby commanding the machine tool to process parts.

[0003] When the existing CNC machine tool tool clamping device clamps the CNC machine tool tool, it is generally single-sided clamping, and the clamping capacity is limited. The CNC machine tool tool is easy to move during operation, affecting the normal processing. Summary of the invention

[0004] The purpose of the present invention is to overcome the shortcomings of the prior art and provide a tool clamping device for a CNC machine tool, which can fix the tool from multiple directions to ensure that the tool is always in a stable state during the operation of the CNC machine tool. The driving mechanism, the pulling rod, the lower pressure plate and the inclined plate cooperate with the side wall of the first mounting groove to fix the tool and prevent the tool from shaking or shifting during operation, thereby greatly ensuring the safety and stability of the tool during operation.

[0005] In order to achieve the above object, the technical solution adopted by the present invention is:

[0006] A tool clamping device for a CNC machine tool includes a mounting rod, a first mounting groove, a second mounting groove and a third mounting groove are opened inside the mounting rod, the first mounting groove, the second mounting groove and the third mounting groove are distributed in sequence from right to left, a blanking piece is arranged in the second mounting groove, a clamping piece is installed in the first mounting groove and the third mounting groove, the tool is arranged in the first mounting groove, the clamping piece is used to fix the tool in the first mounting groove, the clamping piece includes a driving mechanism, a pulling rod, a lower pressure plate and an inclined plate, the driving mechanism is installed in the third mounting groove, the two ends of the pulling rod are rotatably connected to the driving mechanism and the lower pressure plate respectively, the inclined plate is fixedly installed on the top of the lower pressure plate, and the inclined plate is arranged to be inclined upward in a direction away from the first mounting groove, and the lower pressure plate cooperates with the side of the tool.

[0007] Preferably, a vertical plate is also installed on the top of the lower pressure plate, and a waist-shaped hole is opened on the vertical plate. A fixing column is fixedly installed on one end of the pulling rod, and the fixing column is slidably set in the waist-shaped hole. The setting of the vertical plate and the waist-shaped hole can ensure that the lower pressure plate can squeeze the tool while moving, thereby achieving the purpose of fixing the tool, which greatly ensures the safety and stability of the tool during work.

[0008] Preferably, a first slide groove and a second slide groove are opened on the side wall of the first mounting groove, and the first slide groove and the second slide groove are arranged in a stepped shape, and the first slide groove is slidably matched with the inclined plate, and the second slide groove is slidably matched with the lower pressure plate. The setting of the first slide groove and the second slide groove can guide the inclined plate and the lower pressure plate to prevent the lower pressure plate and the inclined plate from shaking during operation, and ensure that the lower pressure plate and the inclined plate cooperate with each other to fix the tool in the first mounting groove.

[0009] Preferably, four pulling rods, lower pressure plates and inclined plates are provided, and the four pulling rods, lower pressure plates and inclined plates are respectively arranged on the four side inner walls of the first mounting groove. The lower pressure plates and inclined plates are arranged around the tool to fix the tool around, preventing the tool from shaking during work, thereby greatly ensuring the safety and stability of the tool during work.

[0010] Preferably, a first strip hole is opened on the side wall of the first mounting groove, and the first strip hole is slidably matched with the vertical plate. A second strip hole is opened on the side wall of the third mounting groove, and the second strip hole is matched with the driving mechanism. The arrangement of the first strip hole and the second strip hole facilitates the driving mechanism to drive the lower pressure plate and the inclined plate to move, ensuring that the lower pressure plates and inclined plates arranged on all sides cooperate with each other to fix the tool in the first mounting groove.

[0011] Preferably, the driving mechanism includes a partition, a worm wheel, a worm, a threaded rod and a movable plate, the movable plate is slidably installed in the third mounting groove, a fixed block is installed on the movable plate, the fixed block is slidably matched with the second strip hole, the ends of the pulling rod are rotatably installed on the fixed block and the vertical plate respectively, the partition is fixedly installed in the third mounting groove, one end of the threaded rod is rotatably installed on the inner wall of the third mounting groove, a fixed shaft is fixedly installed on the other end of the threaded rod, the fixed shaft is rotatably installed on the partition, the movable plate is threadedly connected with the threaded rod, the worm wheel is fixedly installed on the fixed shaft, the worm is arranged on one side of the worm wheel, and the worm The worm gear is meshed with each other, and a countersunk groove is formed on the mounting rod. A hexagon socket nut is fixedly mounted on the end of the worm gear, and the hexagon socket nut is arranged in the countersunk groove. The worm gear is driven to rotate by rotating the hexagon socket nut, and the rotation of the worm gear drives the worm gear to rotate. The rotation of the worm gear drives the fixed shaft to rotate. The rotation of the fixed shaft drives the threaded rod to rotate. The rotation of the threaded rod drives the movable plate to move along the third mounting groove. The movement of the movable plate drives the pulling rod to move. The movement of the pulling rod drives the lower pressure plate to move. Under the action of the inclined plate, it can be ensured that the lower pressure plate moves toward the center of the first mounting groove while moving. This greatly ensures the fixing efficiency and quality of the tool by the device.

[0012] Preferably, the blanking part includes a supporting plate, a lifting block, a fixing rod, a first spring, a guide rod, a slider and a roller. The fixing rod is symmetrically arranged on both sides of the center line of the second mounting groove, and the fixing rod is fixedly installed on the inner wall of the first mounting groove. A third strip hole is opened on both sides of the center line of the fixing rod, and the guide rod is fixedly installed in the strip hole. The slider is symmetrically arranged at both ends of the roller, and the sliders installed at both ends of the roller are respectively slidably arranged in the third strip holes on the fixing rod symmetrically arranged on both sides of the center line of the second mounting groove. The slider is slidably connected to the guide rod, the first spring is arranged in the third strip hole, and the first spring is sleeved on the guide rod, and the roller is symmetrically arranged on the fixing rod. On both sides of the center line, the support plate is arranged in the first mounting groove, and a through hole is opened on the dividing plate between the first mounting groove and the second mounting groove, and the lifting block is fixedly installed between the support plate and the roller, and the two side walls of the lifting block cooperate with the rollers symmetrically arranged on both sides of the center line of the fixed rod, and the lifting block slides with the through hole, and the end of the tool pushes the support plate to move to one side of the fixed rod, and the movement of the support plate drives the lifting block to move along the through hole, and the lifting block will cooperate with the rollers arranged on both sides of the center line of the fixed rod, and as the lifting block moves, the rollers will be pushed to both sides, and the rollers will drive the slider to move to both sides along the guide rod, and the movement of the slider will compress the first spring, and the first spring always provides power for the lifting block to reset.

[0013] Preferably, the lifting block is configured as a structure with a side cross-section of an isosceles trapezoid or an isosceles triangle, with notches provided at the four corners of the lifting plate, and the notches are slidably matched with the connection between the first slide groove and the second slide groove. The configuration of the lifting block facilitates the movement of the rollers arranged on both sides of the center line of the fixed rod to both sides, preventing the support plate from tilting due to uneven force, thereby greatly ensuring the normal operation of the unloading parts.

[0014] Preferably, it also includes a clamping mechanism and a pressure mechanism, the clamping mechanism includes a rotating plate, rotating arms fixedly mounted at both ends of the rotating plate, and a protrusion installed at the bottom of the rotating arm, the connection between the rotating arm and the protrusion is rotatably mounted on the lower pressure plate, the protrusion cooperates with the side wall of the tool, the clamping mechanism cooperates with the rotating plate, and the rotating plate cooperates with the corners of the mounting rod. The clamping mechanism can fix the tool again under the premise that the clamping mechanism fixes the tool, which greatly ensures the safety and stability of the tool during work and ensures the normal operation of the tool.

[0015] Preferably, the pressure mechanism includes a vertical plate, a sliding rod, a pushing rod and a second spring, the vertical plate is fixedly mounted on the end of the lower pressure plate, the sliding rod is slidably mounted on the vertical plate, the pushing rod is fixedly mounted on one end of the sliding rod, and a blocking block is fixedly mounted on the other end of the sliding rod, the second spring is sleeved on the sliding rod, and the second spring is located between the pushing rod and the vertical plate. The setting of the pressure mechanism can serve the purpose of resetting the rotating plate, the rotating arm and the protrusion, ensuring that the device can be used continuously, greatly improving the installation efficiency and quality of the device for the tool.

[0016] The beneficial effects of the present invention are:

[0017] 1) This device can fix the tool from multiple directions to ensure that the tool is always in a stable state during the operation of the CNC machine tool. The driving mechanism, the pulling rod, the lower pressure plate and the inclined plate cooperate with the side wall of the first mounting groove to fix the tool and prevent the tool from shaking or shifting during the operation, thereby greatly ensuring the safety and stability of the tool during the operation.

[0018] 2) The setting of the vertical plate and the waist-shaped hole of the device can ensure that the lower pressure plate can squeeze the tool while moving, thereby achieving the purpose of fixing the tool, greatly ensuring the safety and stability of the tool during the working process.

[0019] 3) The setting of the first slide groove and the second slide groove of the device can guide the inclined plate and the lower pressure plate to prevent the lower pressure plate and the inclined plate from shaking during operation, and ensure that the lower pressure plate and the inclined plate cooperate with each other to fix the tool in the first mounting groove.

[0020] 4) The lower pressure plate and the inclined plate of the device are arranged around the tool to fix the tool around, preventing the tool from shaking during operation, thereby greatly ensuring the safety and stability of the tool during operation.

[0021] 5) The arrangement of the first strip hole and the second strip hole of the device facilitates the driving mechanism to drive the lower pressure plate and the inclined plate to move, ensuring that the lower pressure plate and the inclined plate arranged around cooperate with each other to fix the tool in the first installation groove.

[0022] 6) This device drives the worm to rotate by rotating the hexagonal nut, the worm drives the worm wheel, the worm wheel drives the fixed shaft to rotate, the fixed shaft drives the threaded rod to rotate, the threaded rod drives the movable plate to move along the third mounting groove, the movement of the movable plate drives the pulling rod to move, the movement of the pulling rod drives the lower pressure plate to move, under the action of the inclined plate, it can be ensured that the lower pressure plate moves toward the center of the first mounting groove while moving, which greatly ensures the fixing efficiency and quality of the tool by the device.

[0023] 7) The end of the tool of this device pushes the support plate to move toward one side of the fixed rod. The movement of the support plate drives the lifting block to move along the through hole. The lifting block will cooperate with the rollers arranged on both sides of the center line of the fixed rod. As the lifting block moves, it will push the rollers to both sides. The rollers will drive the slider to move along the guide rod to both sides. The movement of the slider will compress the first spring, and the first spring will always provide power for the lifting block to reset.

[0024] 8) The setting of the lifting block of this device is convenient for driving the rollers arranged on both sides of the center line of the fixed rod to move to both sides, preventing the tilt of the support plate caused by uneven force, and greatly ensuring the normal operation of the unloading parts.

[0025] 9) The clamping mechanism of the device can fix the tool again on the premise that the clamping mechanism fixes the tool, which greatly ensures the safety and stability of the tool during the working process and ensures the normal operation of the tool.

[0026] 10) The setting of the pressure mechanism of the device can achieve the purpose of resetting the rotating plate, the rotating arm and the protrusion, ensuring that the device can be used continuously and greatly improving the installation efficiency and quality of the tool of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Attached Figure 1 The structure of the present invention is schematically shown in FIG. Figure 1 .

[0028] Attached Figure 2 It is a schematic diagram of the installation structure of the blanking part in the present invention.

[0029] Attached Figure 3 The structure of the present invention is schematically shown in FIG. Figure 2.

[0030] Attached Figure 4 It is a structural schematic diagram of the mounting rod in the present invention.

[0031] Attached Figure 5 It is a cross-sectional view of the mounting rod in the present invention.

[0032] Attached Figure 6 The structure of the clamping member in the present invention is shown in FIG. Figure 1 .

[0033] Attached Figure 7 The structure of the clamping member in the present invention is shown in FIG. Figure 2 .

[0034] Attached Figure 8 The present invention Figure 2 Enlarged view of point A in the middle.

[0035] Attached Fig. 9 The present invention Figure 3 Enlarged view of point B in the middle.

[0036] Attached Fig.10 It is a structural schematic diagram of the blanking piece in the present invention.

[0037] Attached Fig.11 It is a schematic diagram of the working structure of the present invention.

[0038] In the figure:

[0039] 1. Mounting rod; 101. First strip hole; 102. Second strip hole; 103. Countersunk groove; 104. Second slide groove; 105. First slide groove; 106. First mounting groove; 107. Second mounting groove; 108. Third mounting groove; 109. Through hole;

[0040] 2. Clamping member; 201. Driving mechanism; 202. Fixed column; 203. Lower pressure plate; 204. Inclined plate; 205. Vertical plate; 206. Waist-shaped hole; 207. Pull rod; 208. Partition plate; 209. Fixed shaft; 2010. Worm; 2011. Hexagon socket nut; 2012. Moving plate; 2013. Fixed block; 2014. Worm wheel;

[0041] 3. Pressure mechanism; 301. Vertical plate; 302. Blocking block; 303. Sliding rod; 304. Push rod; 305. Second spring;

[0042] 4. Clamping mechanism; 401. Rotating plate; 402. Rotating arm; 403. Protrusion;

[0043] 5. blanking part; 501. support plate; 502. third strip hole; 503. roller; 504. fixing rod; 505. slider; 506. guide rod; 507. first spring; 508. lifting block; 509. notch;

[0044] 6. Cutting tools. DETAILED DESCRIPTION

[0045] The following is a clear and complete description of the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0046] In the description of the present invention, it should be understood that the terms "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside" and "outside" etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0047] like Figure 1 As shown, the tool 6 clamping device for a numerically controlled machine tool comprises a mounting rod 1, which is used to support the device to ensure normal operation of the device.

[0048] like Figure 5 As shown, a first mounting groove 106, a second mounting groove 107 and a third mounting groove 108 are opened inside the mounting rod 1, and the first mounting groove 106, the second mounting groove 107 and the third mounting groove 108 are distributed in sequence from right to left. A blanking piece 5 is arranged in the second mounting groove 107, and a clamping piece 2 is installed in the first mounting groove 106 and the third mounting groove 108. The tool 6 is arranged in the first mounting groove 106, and the clamping piece 2 is used to fix the tool 6 in the first mounting groove 106. The first mounting groove 106 and the third mounting groove 108 are used to install the clamping piece 2 to ensure the normal operation of the clamping piece 2. The setting of the second mounting groove 107 cooperates with the first mounting groove 106 to install the blanking piece 5, thereby ensuring the safety of the blanking piece 5.

[0049] like Figure 6As shown, the clamping member 2 includes a driving mechanism 201, a pulling rod 207, a lower pressure plate 203 and an inclined plate 204. The driving mechanism 201 is installed in the third mounting groove 108. The two ends of the pulling rod 207 are rotatably connected to the driving mechanism 201 and the lower pressure plate 203 respectively. The inclined plate 204 is fixedly installed on the top of the lower pressure plate 203, and the inclined plate 204 is inclined upward in a direction away from the first mounting groove 106, and the lower pressure plate 203 cooperates with the side of the tool 6.

[0050] As an optimization solution of the present invention, Figure 6 As shown, a vertical plate 205 is also installed on the top of the lower pressure plate 203, and a waist-shaped hole 206 is opened on the vertical plate 205. A fixing column 202 is fixedly installed on one end of the pulling rod 207, and the fixing column 202 is slidably set in the waist-shaped hole 206.

[0051] The arrangement of the vertical plate 205 and the waist-shaped hole 206 can ensure that the lower pressing plate 203 can squeeze the tool 6 while moving, thereby achieving the purpose of fixing the tool 6, and greatly ensuring the safety and stability of the tool 6 during the working process.

[0052] As an optimization solution of the present invention, Figure 4 As shown, a first slide groove 105 and a second slide groove 104 are opened on the side wall of the first installation groove 106, and the first slide groove 105 and the second slide groove 104 are arranged in a stepped manner, and the first slide groove 105 slides with the inclined plate 204, and the second slide groove 104 slides with the lower pressure plate 203.

[0053] The setting of the first slide groove 105 and the second slide groove 104 can guide the inclined plate 204 and the lower pressure plate 203 to prevent the lower pressure plate 203 and the inclined plate 204 from shaking during operation, and ensure that the lower pressure plate 203 and the inclined plate 204 cooperate with each other to fix the tool 6 in the first mounting groove 106.

[0054] As an optimization solution of the present invention, Figure 2 , Figure 3 As shown, four of the pulling rods 207 , the lower pressing plates 203 and the inclined plates 204 are provided, and the four pulling rods 207 , the lower pressing plates 203 and the inclined plates 204 are respectively provided on the inner walls of the four sides of the first mounting groove 106 .

[0055] The lower pressing plate 203 and the inclined plate 204 are arranged around the tool 6 to fix the tool 6 around, preventing the tool 6 from shaking during operation, thereby greatly ensuring the safety and stability of the tool 6 during operation.

[0056] As an optimization solution of the present invention, Figure 4As shown, a first strip hole 101 is opened on the side wall of the first installation groove 106 , and the first strip hole 101 slidably cooperates with the vertical plate 205 , and a second strip hole 102 is opened on the side wall of the third installation groove 108 , and the second strip hole 102 cooperates with the driving mechanism 201 .

[0057] The first strip hole 101 and the second strip hole 102 are provided to facilitate the driving mechanism 201 to drive the lower pressing plate 203 and the inclined plate 204 to move, ensuring that the lower pressing plate 203 and the inclined plate 204 provided around cooperate with each other to fix the tool 6 in the first mounting groove 106 .

[0058] As an optimization solution of the present invention, Figure 6 , Figure 7 As shown, the driving mechanism 201 includes a partition 208, a worm wheel 2014, a worm 2010, a threaded rod and a moving plate 2012, the moving plate 2012 is slidably installed in the third mounting groove 108, a fixed block 2013 is installed on the moving plate 2012, the fixed block 2013 is slidably matched with the second strip hole 102, the ends of the pulling rod 207 are rotatably installed on the fixed block 2013 and the vertical plate 205 respectively, the partition 208 is fixedly installed in the third mounting groove 108, and one end of the threaded rod is rotatably installed in the third mounting groove On the inner wall of 108, a fixed shaft 209 is fixedly installed on the other end of the threaded rod, and the fixed shaft 209 is rotatably installed on the partition 208. The movable plate 2012 is threadedly connected to the threaded rod. The worm wheel 2014 is fixedly installed on the fixed shaft 209. The worm 2010 is arranged on one side of the worm wheel 2014, and the worm 2010 is meshed with the worm wheel 2014. A countersunk groove 103 is opened on the mounting rod 1, and a hexagon socket nut 2011 is fixedly installed on the end of the worm 2010, and the hexagon socket nut 2011 is arranged in the countersunk groove 103.

[0059] The worm 2010 is driven to rotate by rotating the hexagonal nut 2011, the worm 2010 drives the worm wheel 2014 to rotate, the worm wheel 2014 drives the fixed shaft 209 to rotate, the fixed shaft 209 drives the threaded rod to rotate, the threaded rod drives the movable plate 2012 to move along the third mounting groove 108, the movement of the movable plate 2012 will drive the pulling rod 207 to move, the movement of the pulling rod 207 will drive the lower pressure plate 203 to move, under the action of the inclined plate 204, it can be ensured that the lower pressure plate 203 moves while moving toward the center of the first mounting groove 106, which greatly ensures the fixing efficiency and fixing quality of the tool 6 by the device.

[0060] As an optimization solution of the present invention, Fig.10As shown, the blanking member 5 includes a support plate 501, a lifting block 508, a fixing rod 504, a first spring 507, a guide rod 506, a slider 505 and a roller 503. The fixing rod 504 is symmetrically arranged on both sides of the center line of the second mounting groove 107, and the fixing rod 504 is fixedly installed on the inner wall of the first mounting groove 106. A third strip hole 502 is opened on both sides of the center line of the fixing rod 504. The guide rod 506 is fixedly installed in the strip hole. The slider 505 is symmetrically arranged at both ends of the roller 503, and the sliders 505 installed at both ends of the roller 503 are respectively slidably arranged on the fixing rod 504 symmetrically arranged on both sides of the center line of the second mounting groove 107. In the third strip hole 502, the slider 505 is slidably connected to the guide rod 506, the first spring 507 is arranged in the third strip hole 502, and the first spring 507 is sleeved on the guide rod 506, the roller 503 is symmetrically arranged on both sides of the center line of the fixed rod 504, the support plate 501 is arranged in the first mounting groove 106, and a through hole 109 is opened on the dividing plate between the first mounting groove 106 and the second mounting groove 107, the lifting block 508 is fixedly installed between the support plate 501 and the roller 503, and the two side walls of the lifting block 508 cooperate with the rollers 503 symmetrically arranged on both sides of the center line of the fixed rod 504, and the lifting block 508 slidably cooperates with the through hole 109.

[0061] The end of the tool 6 pushes the support plate 501 to move toward one side of the fixed rod 504. The movement of the support plate 501 drives the lifting block 508 to move along the through hole 109. The lifting block 508 will cooperate with the rollers 503 arranged on both sides of the center line of the fixed rod 504. As the lifting block 508 moves, it will push the rollers 503 to both sides. The rollers 503 will drive the slider 505 to move to both sides along the guide rod 506. The movement of the slider 505 will compress the first spring 507. The first spring 507 always provides power for the lifting block 508 to reset.

[0062] As an optimization solution of the present invention, Fig.10 As shown, the lifting block 508 is configured to have a structure with a side cross-section of an isosceles trapezoid or an isosceles triangle, and notches 509 are opened at the four corners of the lifting plate. The notches 509 are slidably matched with the connection between the first slide groove 105 and the second slide groove 104.

[0063] The setting of the lifting block 508 is convenient for driving the rollers 503 arranged on both sides of the center line of the fixing rod 504 to move to both sides, preventing the support plate 501 from tilting due to uneven force, thereby greatly ensuring the normal operation of the blanking piece 5.

[0064] As an optimization solution of the present invention, Figure 1 , Figure 2 , Figure 3 As shown, it also includes a clamping mechanism 4 and a pressure mechanism 3, such as Figure 8 As shown, the clamping mechanism 4 includes a rotating plate 401, a rotating arm 402 fixedly mounted at both ends of the rotating plate 401, and a protrusion 403 installed at the bottom of the rotating arm 402. The connection between the rotating arm 402 and the protrusion 403 is rotatably mounted on the lower pressure plate 203, the protrusion 403 cooperates with the side wall of the tool 6, the clamping mechanism 4 cooperates with the rotating plate 401, and the rotating plate 401 cooperates with the corners of the mounting rod 1.

[0065] The clamping mechanism 4 can fix the tool 6 again on the premise that the clamping mechanism fixes the tool 6 , which greatly ensures the safety and stability of the tool 6 during the working process and ensures the normal operation of the tool 6 .

[0066] As an optimization solution of the present invention, Fig. 9 As shown, the pressure mechanism 3 includes a vertical plate 301, a sliding rod 303, a pushing rod 304 and a second spring 305. The vertical plate 301 is fixedly mounted on the end of the lower pressure plate 203, the sliding rod 303 is slidably mounted on the vertical plate 301, the pushing rod 304 is fixedly mounted on one end of the sliding rod 303, and a blocking block 302 is fixedly mounted on the other end of the sliding rod 303. The setting of the blocking block 302 can prevent the sliding rod 303 from sliding beyond the original range and affecting the normal operation of the pressure mechanism 3. The second spring 305 is sleeved on the sliding rod 303, and the second spring 305 is located between the pushing rod 304 and the vertical plate 301.

[0067] The setting of the pressure mechanism 3 can achieve the purpose of resetting the rotating plate 401, the rotating arm 402 and the protrusion 403, ensuring that the device can be used continuously, and greatly improving the installation efficiency and installation quality of the tool 6 of the device.

[0068] like Fig.11 As shown, the working process is as follows:

[0069] Insert the end of the tool 6 into the first mounting groove 106 on the mounting groove, and push the tool 6 to compress the support plate 501 at the same time. The staff rotates the hexagonal nut 2011 through a wrench or an electric wrench, and the hexagonal nut 2011 drives the worm 2010 to rotate, and the rotation of the worm 2010 drives the worm wheel 2014 to rotate, and the rotation of the worm wheel 2014 drives the fixed shaft 209 to rotate, and the rotation of the fixed shaft 209 drives the threaded rod to rotate, and the rotation of the threaded rod drives the movable plate 2012 to move along the third mounting groove 108, and the movement of the movable plate 2012 will drive the pull rod 207 to move, and the movement of the pull rod 207 will drive the lower pressing plate 203 to move. Under the action of the inclined plate 204, it can be ensured that the lower pressing plate 203 moves toward the center of the first mounting groove 106 while moving, so that the tool 6 is fixed in the first mounting groove 106 on the mounting rod 1;

[0070] When the lower pressing plate 203 moves, the rotating arm 402, the rotating plate 401 and the protrusion 403 will be driven to move toward the inside of the first mounting groove 106. When the rotating plate 401, the rotating arm 402 and the protrusion 403 move, they will cooperate with the end of the mounting groove. As the rotating arm 402 moves, the rotating arm 402 will rotate, and the rotating arm 402 rotates to drive the protrusion 403 to rotate. The protrusion 403 rotates so that the raised part of the protrusion 403 is pressed on the tool 6, so as to achieve the purpose of pressing the tool 6, which greatly ensures the stability and safety of the tool 6 during the working process.

[0071] When the tool 6 needs to be removed, it is only necessary to rotate the hexagonal nut 2011 in the opposite direction. At the same time, under the action of the sliding rod 303, the second spring 305 and the pushing rod 304, the rotating arm 402 and the rotating plate 401 can be rotated in the opposite direction, thereby releasing the restriction of the protrusion 403 at the end of the rotating arm 402 on the tool 6, thereby greatly improving the efficiency of installing and removing the tool 6.

[0072] The above contents are merely examples and explanations of the structure of the present invention. Those skilled in the art may make various modifications or additions to the specific embodiments described or replace them in a similar manner. As long as they do not deviate from the scope defined by the structure of the present invention, they shall all fall within the protection scope of the present invention.

Claims

1. A tool holding device for a numerically controlled machine tool, comprising a mounting rod, characterized in that: A first mounting groove, a second mounting groove and a third mounting groove are formed inside the mounting rod, and the first mounting groove, the second mounting groove and the third mounting groove are sequentially distributed from right to left. A blanking piece is arranged in the second mounting groove, and clamping pieces are installed in the first mounting groove and the third mounting groove. The tool is arranged in the first mounting groove, and the clamping piece is used to fix the tool in the first mounting groove. The clamping piece includes a driving mechanism, a pulling rod, a lower pressure plate and an inclined plate. The driving mechanism is installed in the third mounting groove, and the two ends of the pulling rod are rotatably connected to the driving mechanism and the lower pressure plate respectively. The inclined plate is fixedly installed on the top of the lower pressure plate, and the inclined plate is inclined upward in a direction away from the first mounting groove, and the lower pressure plate cooperates with the side of the tool.

2. The tool holding device for a CNC machine tool according to claim 1, characterized in that: A vertical plate is also installed on the top of the lower pressure plate, and a waist-shaped hole is opened on the vertical plate. A fixing column is fixedly installed on one end of the pulling rod, and the fixing column is slidably arranged in the waist-shaped hole.

3. The tool clamping device for a CNC machine tool according to claim 1, characterized in that: A first slide groove and a second slide groove are opened on the side wall of the first installation groove. The first slide groove and the second slide groove are arranged in a stepped manner, and the first slide groove is slidably matched with the inclined plate, and the second slide groove is slidably matched with the lower pressing plate.

4. The tool holding device for a CNC machine tool according to claim 1, characterized in that: The pulling rods, the lower pressing plates and the inclined plates are each provided in four numbers, and the four pulling rods, the lower pressing plates and the inclined plates are respectively arranged at the inner walls of the four sides of the first mounting groove.

5. The tool clamping device for a CNC machine tool according to claim 3, characterized in that: A first strip hole is opened on the side wall of the first installation slot, and the first strip hole is slidably matched with the vertical plate. A second strip hole is opened on the side wall of the third installation slot, and the second strip hole is matched with the driving mechanism.

6. The tool holding device for a CNC machine tool according to claim 5, characterized in that: The driving mechanism includes a partition, a worm gear, a worm, a threaded rod and a movable plate, the movable plate is slidably installed in the third mounting groove, a fixed block is installed on the movable plate, the fixed block is slidably matched with the second strip hole, the ends of the pulling rod are rotatably installed on the fixed block and the vertical plate respectively, the partition is fixedly installed in the third mounting groove, one end of the threaded rod is rotatably installed on the inner wall of the third mounting groove, a fixed shaft is fixedly installed on the other end of the threaded rod, the fixed shaft is rotatably installed on the partition, the movable plate is threadedly connected with the threaded rod, the worm gear is fixedly installed on the fixed shaft, the worm is arranged on one side of the worm gear, and the worm is meshed with the worm gear, a countersunk groove is opened on the mounting rod, and a hexagonal nut is fixedly installed on the end of the worm, and the hexagonal nut is arranged in the countersunk groove.

7. The tool holding device for a CNC machine tool according to claim 1, characterized in that: The unloading part comprises a supporting plate, a lifting block, a fixing rod, a first spring, a guide rod, a sliding block and a roller, the fixing rod is symmetrically arranged on both sides of the center line of the second mounting groove, and the fixing rod is fixedly installed on the inner wall of the first mounting groove, and a third strip hole is opened on both sides of the center line of the fixing rod, the guide rod is fixedly installed in the strip hole, the sliding block is symmetrically arranged at both ends of the roller, and the sliding blocks installed at both ends of the roller are respectively slidably arranged in the third strip holes on the fixing rod symmetrically arranged on both sides of the center line of the second mounting groove, the sliding block is slidably connected to the guide rod, the first spring is arranged in the third strip hole, and the first spring is sleeved on the guide rod, the roller is symmetrically arranged on both sides of the center line of the fixing rod, the supporting plate is arranged in the first mounting groove, and a through hole is opened on the dividing plate between the first mounting groove and the second mounting groove, the lifting block is fixedly installed between the supporting plate and the roller, and the two side walls of the lifting block cooperate with the rollers symmetrically arranged on both sides of the center line of the fixing rod, and the lifting block slidably cooperates with the through hole.

8. The tool holding device for a CNC machine tool according to claim 7, characterized in that: The lifting block is configured as a structure with a side cross-section of an isosceles trapezoid or an isosceles triangle, with notches provided at the four corners of the lifting plate, and the notches are slidably matched with the connection between the first slide groove and the second slide groove.

9. The tool clamping device for a CNC machine tool according to claim 1, characterized in that: It also includes a clamping mechanism and a pressure mechanism. The clamping mechanism includes a rotating plate, rotating arms fixedly installed at both ends of the rotating plate, and a protrusion installed at the bottom of the rotating arm. The connection between the rotating arm and the protrusion is rotatably installed on the lower pressure plate, the protrusion cooperates with the side wall of the tool, the clamping mechanism cooperates with the rotating plate, and the rotating plate cooperates with the corners of the mounting rod.

10. The tool clamping device for a CNC machine tool according to claim 9, characterized in that: The pressure mechanism includes a vertical plate, a sliding rod, a pushing rod and a second spring. The vertical plate is fixedly mounted on the end of the lower pressure plate, the sliding rod is slidably mounted on the vertical plate, the pushing rod is fixedly mounted on one end of the sliding rod, and a blocking block is fixedly mounted on the other end of the sliding rod. The second spring is sleeved on the sliding rod, and the second spring is located between the pushing rod and the vertical plate.

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