Speed-adjustable feeding tool rest device

Abstract

The invention relates to the technical field of machining, and particularly discloses a speed-adjustable feeding tool rest device which comprises a main body mechanism, the main body mechanism comprises a tool rest bottom plate, a sliding seat, a tool and a worm gear case, the main body mechanism is used for supporting the tool, and an auxiliary mechanism is installed at one end of the tool rest bottom plate; a switching mechanism, a linkage mechanism, an auxiliary mechanism and a transmission mechanism are movably connected into the worm gear case. Through mutual cooperation of a linkage shaft, a switching mechanism, a linkage mechanism, an auxiliary mechanism and a transmission mechanism, after the split type cutting beveling machine operates to enable a main body mechanism to drive a cutter to cut a pipeline and the cutter is shaken, the linkage mechanism is triggered through the displacement of the cutter during cutter shaking, so that the switching mechanism is driven, and then the pipeline is cut. Therefore, the driving direction is changed, the cutter automatically retreats away from the pipeline, cutter damage caused by continuous cutter vibration is effectively avoided, and safety and reliability of cutting operation are enhanced.

Description

Technical Field

[0001] The invention belongs to the technical field of mechanical processing, and in particular relates to a speed-adjustable feeding tool holder device. Background Art

[0002] With the demand for pipeline installation in various fields, higher requirements are put forward for the installation quality of pipelines. Pipeline installation mainly involves two major processes: cutting and welding. There are currently two cutting methods on the market: one is high-temperature cutting; the other is cold cutting, and cold cutting will use a split-type cutting and beveling machine.

[0003] In the Chinese patent with publication number CN112720021B, a speed-adjustable feed tool holder device is mentioned, including a flywheel located on the tool holder bottom plate, a connecting seat connected to the flywheel, a worm shaft connected to the connecting seat, a worm connected to the worm shaft, and the worm is fixed to the worm box through a pair of bearings. A spiral groove is opened on the top of the worm box, and a tightening screw sleeve is tightened in cooperation with the spiral groove. A second bearing is inlaid inside the tightening screw sleeve, and a compression spring is installed at the lower part of the second bearing. A knob is installed on the top of the worm shaft. The tightening screw sleeve, the knob and the compression spring can make the worm and the worm wheel rotate in cooperation to achieve slow feeding, and can also make the worm wheel and worm disengage. Only the feed screw drives the slide seat to feed quickly, thereby realizing two different feeding speeds. The present invention has ingenious structural design, light weight, flexible movement, detachable connection of various parts, high working efficiency, and extremely wide application.

[0004] During the use of the above-mentioned equipment, since the tool holder is installed on the circular track of the split-type cutting and beveling machine, vibration will be generated as the tool is continuously fed during use, which will cause the compression bolts used to fix the tool on the slide to loosen. Therefore, when the tool and the pipe vibrate, the tool will be damaged. Summary of the invention

[0005] The purpose of the present invention is to provide a tool holder device with adjustable speed feeding to solve the problems existing in the prior art.

[0006] To achieve the above object, the present invention provides the following technical solutions:

[0007] A speed-adjustable feeding tool holder device comprises a main body mechanism, the main body mechanism comprises a tool holder base plate, a slide seat, a tool and a worm gear box, the main body mechanism is used to support the tool, an auxiliary mechanism is installed at one end of the tool holder base plate, the internal movably connected with a switching mechanism, a linkage mechanism, an auxiliary mechanism and a transmission mechanism of the worm gear box, the internal rotatable connection of the worm shaft and the linkage shaft of the worm gear box; the switching mechanism comprises a switching component 1 and a switching component 2, the switching component 1 comprises a receiving ring 1, a plug-in component 1 and a docking column, the switching component 2 comprises a receiving ring 2, a plug-in component 2 and a gear ring, the switching component 1 is used to directly connect the worm shaft and the linkage shaft, and the switching component 2 is used to indirectly connect the worm shaft and the linkage shaft; the linkage mechanism comprises an upper ring, a lower ring and a connecting plate, and the linkage mechanism is used to convert the switching component 1 and the switching component 2; the auxiliary mechanism comprises a mounting block, an auxiliary air cushion and a connecting air box, the auxiliary mechanism is used to drive the linkage mechanism, and the auxiliary mechanism is also used to assist in protecting the tool; the transmission mechanism comprises a transmission shaft and a connecting gear, and the transmission mechanism is used to always connect the switching component 2 with the worm shaft.

[0008] Preferably: the bottom end of the worm shaft is fixedly connected with a connecting gear 1, the top end of the linkage shaft is fixedly connected with a connecting gear 2, there is a gap between the worm shaft and the linkage shaft, a middle gear is fixedly connected to the periphery of the worm shaft, the receiving ring 1 and the receiving ring 2 are both rotatably connected to the inside of the worm gear box, the gear ring is fixedly connected to the periphery of the receiving ring 2, the periphery of the receiving ring 2 is meshed with a lower gear, the lower gear is fixedly connected to the bottom of the transmission shaft, the top of the transmission shaft is fixedly connected with an upper gear, one side of the upper gear is meshed with the connecting gear, the transmission shaft and the connecting gear are both rotatably connected to the inside of the worm gear box, and one side of the connecting gear is meshed with the middle gear.

[0009] Preferably: the receiving ring 1 is located on the periphery of the connecting gear 1, the connector 1 is distributed around the inside of the receiving ring 1, the connector 1 is slidably connected to the receiving ring 1, and spring pieces 1 are provided on both sides of the connector 1. The docking posts are fixedly connected to one end of the connector 1, and the docking posts are located on the inner side of the receiving ring 1. The end of the connector 1 located on the periphery of the receiving ring 1 is used to cooperate with the upper ring, and the docking posts cooperate with connecting gears 1 and 2.

[0010] Preferably: the gear ring is fixedly connected to the periphery of the receiving ring 2, the receiving ring 2 is located at the periphery of the connecting gear 2, the connector 2 is distributed around the inside of the receiving ring 2, and the connector 2 is located below the gear ring.

[0011] Preferably: the second connector is slidably connected to the second receiving ring, two spring sheets are provided on both sides of the second connector, one end of the second connector is fixedly connected to a docking block, the docking block is located on the inner side of the second receiving ring, the docking block cooperates with the second connecting gear, one end of the second connector located on the outer periphery of the second receiving ring is used to cooperate with the lower ring, and the first connector and the second connector are staggered with each other.

[0012] Preferably: the upper ring and the lower ring are both connected to the inside of the worm gear box by sliding up and down, one side of the upper ring and the lower ring is fixedly connected with a connecting column, the connecting plate is fixedly connected to the bottom of the connecting column, and the connecting plate is connected to the inside of the tool holder bottom plate by sliding up and down.

[0013] Preferably: the mounting block is mounted at one end of the tool holder base plate, the auxiliary air cushion is embedded in one side of the mounting block, one side of the auxiliary air cushion is connected with a connecting pipe, the connecting pipe is located inside the mounting block and the tool holder base plate, the end of the connecting pipe away from the auxiliary air cushion is connected to the connecting air box, and the connecting air box is mounted inside the tool holder base plate.

[0014] Preferably: one side of the connecting air box is connected to a folding air bag, a cut surface top block is installed on the side of the folding air bag, the cut surface top block is slidably connected to the inside of the tool holder bottom plate, the folding air bag is used to lift the connecting plate, one end of the connecting air box is connected to an air pipe, one end of the air pipe is located at one end of the tool holder bottom plate.

[0015] Preferably, the slide is slidably connected to the top of the tool holder base plate, the worm gear box is fixedly connected to the top of the tool holder base plate, and the tool is plug-installed below the slide.

[0016] Preferably: the worm gear box is internally rotatably connected with a worm and a worm wheel, the worm cooperates with the worm wheel, a feed screw is fixedly connected to the center of the worm wheel, the feed screw is rotatably connected to the worm gear box, one end of the feed screw is threaded through the slide seat, a flywheel is fixedly connected to the bottom of the linkage shaft, and the worm shaft is fixedly connected to the bottom of the worm.

[0017] Compared with the prior art, the present invention has the following beneficial effects:

[0018] 1. The present invention cooperates with each other through the provided linkage shaft, switching mechanism, linkage mechanism, auxiliary mechanism and transmission mechanism. When the main mechanism of the split-flap cutting and beveling machine is operating and the tool encounters the phenomenon of tool vibration during the process of cutting the pipe, the linkage mechanism is triggered by the displacement of the tool during the tool vibration, thereby driving the switching mechanism, thereby changing the driving direction, and the tool automatically retreats away from the pipe, effectively avoiding tool damage caused by continuous tool vibration, and enhancing the safety and reliability of the cutting operation.

[0019] 2. The auxiliary mechanism provided in the present invention can effectively buffer the vibration generated by the tool during the process of cutting the pipe when the tool normally contacts and cuts the pipe, which not only improves the stability of the cutting operation, but also significantly reduces the risk of tool wear and damage caused by vibration, thereby extending the service life of the tool and reducing the frequency and cost of tool replacement.

[0020] Third, the present invention realizes the forward and reverse switching of the linkage shaft and the worm shaft, and automatically drives the tool in the reverse direction when the tool is vibrating, so that the tool can be safely withdrawn, thereby protecting the tool. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 One of the three-dimensional diagrams of the present invention as a whole;

[0022] Figure 2 One of the three-dimensional diagrams of the main mechanism of the present invention;

[0023] Figure 3 For the present invention Figure 1 A schematic diagram of a side cross-sectional structure;

[0024] Figure 4 It is a structural schematic diagram of the transmission mechanism and the switching mechanism of the present invention;

[0025] Figure 5 It is a structural schematic diagram of the switching component 1, the worm shaft and the linkage shaft of the present invention;

[0026] Figure 6 It is a schematic diagram of the structure of the switching component 2, the worm shaft and the linkage shaft of the present invention;

[0027] Figure 7 A top view of a switching component 1 and a switching component 2 of the present invention;

[0028] Figure 8 It is a structural schematic diagram of the linkage mechanism and the auxiliary mechanism of the present invention;

[0029] Fig. 9 It is a structural schematic diagram of the linkage mechanism of the present invention.

[0030] In the figure: 1, main body; 11, tool holder base plate; 12, slide seat; 13, tool; 14, feed screw; 15, worm gear box; 16, worm; 17, worm wheel; 18, flywheel;

[0031] 2. Worm shaft; 21. Connecting gear 1; 22. Middle gear;

[0032] 3. Linkage shaft; 31. Connecting gear 2;

[0033] 4. Switching mechanism;

[0034] 41. Switching assembly 1; 411. Adapter ring 1; 412. Connector 1; 413. Shrapnel 1; 414. Docking column;

[0035] 42. Switching assembly 2; 421. Receiver ring 2; 422. Connector 2; 423. Shrapnel 2; 424. Docking block; 425. Gear ring;

[0036] 5. linkage mechanism; 51. upper ring; 52. lower ring; 53. connecting column; 54. connecting plate;

[0037] 6. Auxiliary mechanism; 61. Mounting block; 62. Auxiliary air cushion; 63. Connecting pipe; 64. Connecting air box; 65. Folding air bag; 66. Cutting top block; 67. Air pipe;

[0038] 7. Transmission mechanism; 71. Transmission shaft; 72. Upper gear; 73. Lower gear; 74. Connecting gear. DETAILED DESCRIPTION

[0039] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. 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.

[0040] Reference Figure 1-Figure 9 As shown, the present invention provides a speed-adjustable feeding tool holder device, including a main body mechanism 1, the main body mechanism 1 includes a tool holder base plate 11, a slide 12, a tool 13 and a worm gear box 15, the main body mechanism 1 is used to support the tool 13, an auxiliary mechanism 6 is installed at one end of the tool holder base plate 11, the worm gear box 15 is internally movably connected with a switching mechanism 4, a linkage mechanism 5, an auxiliary mechanism 6 and a transmission mechanism 7, and the worm gear box 15 is internally rotatably connected with a worm shaft 2 and a linkage shaft 3;

[0041] The switching mechanism 4 includes a switching component 1 41 and a switching component 2 42. The switching component 1 41 includes a receiving ring 1 411, a plug-in component 1 412 and a docking column 414. The switching component 2 42 includes a receiving ring 2 421, a plug-in component 2 422 and a gear ring 425. The switching component 1 41 is used to directly connect the worm shaft 2 and the linkage shaft 3, and the switching component 2 42 is used to indirectly connect the worm shaft 2 and the linkage shaft 3.

[0042] The linkage mechanism 5 includes an upper ring 51, a lower ring 52 and a connecting plate 54, and the linkage mechanism 5 is used to switch between the switching component 1 41 and the switching component 2 42;

[0043] The auxiliary mechanism 6 includes a mounting block 61, an auxiliary air cushion 62 and a connecting air box 64. The auxiliary mechanism 6 is used to drive the linkage mechanism 5. The auxiliary mechanism 6 is also used to assist in protecting the tool 13.

[0044] The transmission mechanism 7 includes a transmission shaft 71 and a connecting gear 74, and the transmission mechanism 7 is used to always connect the switching component 2 42 with the worm shaft 2;

[0045] Specifically, after the tool holder consisting of the entire main body mechanism 1 is placed on the annular track of the split-type cutting and beveling machine, the motor of the split-type cutting and beveling machine is started to rotate the tool holder on the annular track, and during the rotation, the tool shifting mechanism on the annular track will drive the flywheel 18 to rotate, thereby rotating the linkage shaft 3, and when the upper ring 51 presses against the connector 412, the linkage shaft 3 can rotate with the worm shaft 2, thereby rotating the worm 16, worm wheel 17 and feed screw 14 in the prior art, and gradually feeding the slide 12 and the tool 13 to cut the pipe.

[0046] Reference Figure 3-Figure 9 In a further embodiment, the bottom end of the worm shaft 2 is fixedly connected with a connecting gear 1 21, the top end of the linkage shaft 3 is fixedly connected with a connecting gear 2 31, there is a gap between the worm shaft 2 and the linkage shaft 3, the periphery of the worm shaft 2 is fixedly connected with a middle gear 22, the receiving ring 1 411 and the receiving ring 2 421 are both rotatably connected to the inside of the worm gear box 15, the gear ring 425 is fixedly connected around the periphery of the receiving ring 2 421, the periphery of the receiving ring 2 421 is meshed with a lower gear 73, the lower gear 73 is fixedly connected to the bottom of the transmission shaft 71, the top of the transmission shaft 71 is fixedly connected with an upper gear 72, one side of the upper gear 72 is meshed with a connecting gear 74, the transmission shaft 71 and the connecting gear 74 are both rotatably connected to the inside of the worm gear box 15, and one side of the connecting gear 74 is meshed with the middle gear 22;

[0047] Specifically, the transmission shaft 71, the upper gear 72, the lower gear 73 and the connecting gear 74 make the switching component 2 42 and the worm shaft 2 always in a connected state. Only when the lower ring 52 moves up to support the connector 2 422 so that the docking block 424 docks with the connecting gear 2 31, the linkage shaft 3 will be indirectly connected to the worm shaft 2. Therefore, when the flywheel 18 cooperates with the tool shifting mechanism in the flap-type cutting and beveling machine, the flywheel 18 will drive the linkage shaft 3 to rotate clockwise, and then the worm shaft 2 will rotate counterclockwise through the switching component 2 42 and the transmission mechanism 7, thereby allowing the worm 16 at the top of the worm shaft 2 to rotate counterclockwise, and then the tool 13 can be retracted.

[0048] The receiving ring 411 is located at the periphery of the connecting gear 21, the plug-in piece 412 is distributed around the inside of the receiving ring 411, the plug-in piece 412 is slidably connected to the receiving ring 411, and spring pieces 413 are arranged on both sides of the plug-in piece 412. The docking posts 414 are fixedly connected to one end of the plug-in piece 412, and the docking posts 414 are located on the inner side of the receiving ring 411. The end of the plug-in piece 412 located at the periphery of the receiving ring 411 is used to cooperate with the upper ring 51, and the docking posts 414 cooperate with the connecting gear 21 and the connecting gear 2 31;

[0049] The gear ring 425 is fixedly connected to the periphery of the receiving ring 421, the receiving ring 421 is located at the periphery of the connecting gear 31, the plug-in parts 422 are all surrounded and distributed inside the receiving ring 421, the plug-in parts 422 are located below the gear ring 425, the plug-in parts 422 are slidably connected to the receiving ring 421, the two sides of the plug-in parts 422 are provided with spring pieces 423, one end of the plug-in parts 422 is fixedly connected with a docking block 424, and the docking block 424 is located at the receiving ring On the inner side of the second receiving ring 421, the docking block 424 cooperates with the second connecting gear 31, and the second plug-in connector 422 is located at one end of the outer periphery of the second receiving ring 421 for cooperating with the lower ring 52, and the first plug-in connector 412 and the second plug-in connector 422 are staggered with each other; the docking column 414 can be connected to the connecting gear 1 21 and the connecting gear 2 31, so as to directly connect the linkage shaft 3 and the worm shaft 2; the first plug-in connector 412 and the second plug-in connector 422 both have six, but the two are staggered with each other to avoid mutual interference;

[0050] The upper ring 51 and the lower ring 52 are both connected to the inside of the worm gear box 15 by sliding up and down. A connecting column 53 is fixedly connected to one side of the upper ring 51 and the lower ring 52. A connecting plate 54 is fixedly connected to the bottom of the connecting column 53. The connecting plate 54 is connected to the inside of the tool holder bottom plate 11 by sliding up and down. A cut surface is opened on the inner side of the upper ring 51 and the lower ring 52, and the cut surface of the upper ring 51 is symmetrical to the cut surface of the lower ring 52, thereby pushing the connector 1 412 and the connector 2 422. The air pipe 67 is a one-way pipe. When the auxiliary air After the gas inside the cushion 62 completely enters the folding airbag 65, the excess gas will be discharged through the air pipe 67, thereby ensuring that the cut surface top block 66 is always pressed against the bottom of the connecting plate 54. When it is necessary to reset the position of the cut surface top block 66, the gas inside the folding airbag 65 can be sucked out by an external tool, so that the cut surface top block 66 no longer presses against the connecting plate 54, and the auxiliary air cushion 62 can be re-inflated at the same time; the connecting air box 64 is mainly used to transfer the gas entering from the auxiliary air cushion 62;

[0051] The mounting block 61 is mounted on one end of the tool holder base plate 11, and the auxiliary air cushion 62 is embedded in one side of the mounting block 61. A connecting pipe 63 is connected to one side of the auxiliary air cushion 62. The connecting pipe 63 is located inside the mounting block 61 and the tool holder base plate 11. One end of the connecting pipe 63 away from the auxiliary air cushion 62 is connected to a connecting air box 64. The connecting air box 64 is mounted inside the tool holder base plate 11. One side of the connecting air box 64 is connected to a folding air bag 65. A cut-surface top block 66 is installed on the side of the folding air bag 65. The cut-surface top block 66 is slidably connected to the inside of the tool holder base plate 11. The folding air bag 65 is used to lift the connecting plate 54. One end of the connecting air box 64 is connected to an air pipe 67. One end of the air pipe 67 is located at one end of the tool holder base plate 11.

[0052] Specifically, when the tool 13 is installed under the slide 12 and positioned by bolts, one side of the tool 13 will contact the auxiliary air cushion 62, and the entire tool holder is installed on the circular track of the split-type cutting and beveling machine, and it is operated to cut the pipeline. At this time, one end of the tool 13 will contact the pipeline, and as the tool holder rotates on the circular track, the tool 13 is gradually fed to cut the pipeline. In the cutting process, the vibration generated by the contact between the tool 13 and the pipeline will be buffered by the auxiliary air cushion 62; when the tool 13 and the pipeline vibrate, the friction between the tool 13 and the pipeline will cause the tool 13 to be located, thereby compressing the auxiliary air cushion 62, and through the connecting pipe 63, the gas in the auxiliary air cushion 62 quickly rushes into the interior of the connecting air box 64 and expands the folding air bag 65, thereby causing the cutting surface top block 66 to move toward the connecting plate 54 and lift the connecting plate 54, thereby causing the connecting column 53, the lower ring 52 and the upper ring 51 to move upward; the upward movement of the upper ring 51 will cause it The inner connector 1 412 is no longer squeezed, so the spring sheet 1 413 rebounds and the docking column 414 no longer engages the connecting gear 1 21 and the connecting gear 2 31, causing the two to lose connection; the upward movement of the lower ring 52 causes the inner side to squeeze one end of the connector 2 422, and the docking block 424 docks with the teeth of the connecting gear 2 31, thereby allowing the top of the linkage shaft 3 to dock with the receiving ring 2 421. Since the outer periphery of the receiving ring 2 421 is connected to the lower gear 7 through the gear ring 425, 3 is meshed, and the upper gear 72 is meshed with the middle gear 22 through the connecting gear 74, so that the worm shaft 2 will rotate, and the rotation direction is opposite to that of the linkage shaft 3, so that the worm 16, the worm wheel 17 and the feed screw 14 in the prior art can be reversely driven to rotate in the reverse direction, thereby allowing the slide 12 to move the tool 13 back away from the pipeline, so that when the tool 13 of the tool holder is vibrating when cutting the pipeline, the tool 13 can be retreated, thereby avoiding damage to the tool 13 and thus increasing the service life of the tool 13.

[0053] Reference Figure 1-Figure 3In a further embodiment, the slide 12 is slidably connected to the top of the tool holder base plate 11, the worm gear box 15 is fixedly connected to the top of the tool holder base plate 11, and the tool 13 is plugged and installed below the slide 12;

[0054] The worm 16 and the worm wheel 17 are rotatably connected inside the worm gear box 15. The worm 16 cooperates with the worm wheel 17. The center of the worm wheel 17 is fixedly connected with a feed screw 14. The feed screw 14 is rotatably connected to the worm gear box 15. One end of the feed screw 14 passes through a threaded connection to the slide seat 12. The bottom of the linkage shaft 3 is fixedly connected with a flywheel 18, and the worm shaft 2 is fixedly connected to the bottom of the worm 16.

[0055] Specifically, the main body mechanism 1 includes a tool holder base plate 11, a slide 12, a tool 13, a feed screw 14, a worm gear box 15, a worm 16, a worm wheel 17 and a flywheel 18. The adjustable speed feed tool holder in the prior art is one of the components used in a flap-type cutting and beveling machine; the flywheel 18 cooperates with the knife shifting mechanism in the existing flap-type cutting and beveling machine. The flap-type cutting and beveling machine is usually equipped with a knife shifting mechanism, which achieves different cutting speeds by switching different gears; the flywheel and the knife shifting mechanism cooperate with each other, and when the knife shifting mechanism shifts the flywheel, the flywheel will drive the tool holder and the tool to feed.

[0056] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A tool holder device with adjustable speed feeding, comprising a main body mechanism (1), characterized in that: The main body mechanism (1) comprises a tool holder base plate (11), a slide seat (12), a tool (13) and a worm gear box (15); the main body mechanism (1) is used to support the tool (13); an auxiliary mechanism (6) is installed at one end of the tool holder base plate (11); a switching mechanism (4), a linkage mechanism (5), an auxiliary mechanism (6) and a transmission mechanism (7) are movably connected inside the worm gear box (15); a worm shaft (2) and a linkage shaft (3) are rotatably connected inside the worm gear box (15); The switching mechanism (4) comprises a switching component 1 (41) and a switching component 2 (42); the switching component 1 (41) comprises a receiving ring 1 (411), a plug-in component 1 (412) and a docking column (414); the switching component 2 (42) comprises a receiving ring 2 (421), a plug-in component 2 (422) and a gear ring (425); the switching component 1 (41) is used to directly connect the worm shaft (2) and the linkage shaft (3); and the switching component 2 (42) is used to indirectly connect the worm shaft (2) and the linkage shaft (3); The linkage mechanism (5) comprises an upper ring (51), a lower ring (52) and a connecting plate (54), and the linkage mechanism (5) is used to switch between the switching component 1 (41) and the switching component 2 (42); The auxiliary mechanism (6) comprises a mounting block (61), an auxiliary air cushion (62) and a connecting air box (64); the auxiliary mechanism (6) is used to drive the linkage mechanism (5); and the auxiliary mechanism (6) is also used to assist in protecting the tool (13); The transmission mechanism (7) comprises a transmission shaft (71) and a connecting gear (74), and the transmission mechanism (7) is used to always connect the switching component 2 (42) with the worm shaft (2).

2. The adjustable speed feeding tool holder device according to claim 1, characterized in that: The bottom end of the worm shaft (2) is fixedly connected to a connecting gear 1 (21), the top end of the linkage shaft (3) is fixedly connected to a connecting gear 2 (31), a gap exists between the worm shaft (2) and the linkage shaft (3), a middle gear (22) is fixedly connected to the periphery of the worm shaft (2), the receiving ring 1 (411) and the receiving ring 2 (421) are both rotatably connected to the inside of the worm gear box (15), and the gear ring (425) is fixedly connected to the periphery of the receiving ring 2 (421). The outer periphery of the receiving ring 2 (421) is meshedly connected with a lower gear (73), the lower gear (73) is fixedly connected to the bottom of the transmission shaft (71), the top of the transmission shaft (71) is fixedly connected with an upper gear (72), one side of the upper gear (72) is meshedly connected with the connecting gear (74), the transmission shaft (71) and the connecting gear (74) are both rotatably connected to the inside of the worm gear box (15), and one side of the connecting gear (74) is meshedly connected to the middle gear (22).

3. The tool holder device with adjustable speed feeding according to claim 1, characterized in that: The receiving ring (411) is located on the periphery of the connecting gear (21), the plug-in component (412) is distributed around the inside of the receiving ring (411), the plug-in component (412) is slidably connected to the receiving ring (411), and spring pieces (413) are provided on both sides of the plug-in component (412). The docking posts (414) are fixedly connected to one end of the plug-in component (412), and the docking posts (414) are located on the inner side of the receiving ring (411). One end of the plug-in component (412) located on the periphery of the receiving ring (411) is used to cooperate with the upper ring (51), and the docking posts (414) cooperate with the connecting gear (21) and the connecting gear (31).

4. The adjustable speed feeding tool holder device according to claim 2, characterized in that: The gear ring (425) is fixedly connected to the periphery of the receiving ring (421), and the receiving ring (421) is located on the periphery of the connecting gear (31). The plug-in component (422) is distributed around the inside of the receiving ring (421), and the plug-in component (422) is located below the gear ring (425).

5. The speed-adjustable feed tool holder device according to claim 2, characterized in that: The second connector (422) is slidably connected to the second receiving ring (421), and two spring sheets (423) are arranged on both sides of the second connector (422). One end of the second connector (422) is fixedly connected to a docking block (424), and the docking block (424) is located on the inner side of the second receiving ring (421). The docking block (424) cooperates with the second connecting gear (31). One end of the second connector (422) located on the outer periphery of the second receiving ring (421) is used to cooperate with the lower ring (52), and the first connector (412) and the second connector (422) are staggered with each other.

6. The tool holder device with adjustable speed feeding according to claim 1, characterized in that: The upper ring (51) and the lower ring (52) are both connected to the inside of the worm gear box (15) in a sliding manner up and down. A connecting column (53) is fixedly connected to one side of the upper ring (51) and the lower ring (52). The connecting plate (54) is fixedly connected below the connecting column (53). The connecting plate (54) is connected to the inside of the tool holder base plate (11) in a sliding manner up and down.

7. The speed-adjustable feed tool holder device according to claim 1, characterized in that: The mounting block (61) is mounted on one end of the tool holder base plate (11), the auxiliary air cushion (62) is embedded on one side of the mounting block (61), one side of the auxiliary air cushion (62) is connected with a connecting pipe (63), the connecting pipe (63) is located inside the mounting block (61) and the tool holder base plate (11), one end of the connecting pipe (63) away from the auxiliary air cushion (62) is connected to the connecting air box (64), and the connecting air box (64) is mounted inside the tool holder base plate (11).

8. The tool holder device with adjustable speed feeding according to claim 1, characterized in that: One side of the connecting air box (64) is connected to a folding air bag (65), and a cutting top block (66) is installed on the side of the folding air bag (65). The cutting top block (66) is slidably connected to the inside of the tool holder base plate (11). The folding air bag (65) is used to lift the connecting plate (54). One end of the connecting air box (64) is connected to an air pipe (67), and one end of the air pipe (67) is located at one end of the tool holder base plate (11).

9. The tool holder device with adjustable speed feeding according to claim 1, characterized in that: The slide seat (12) is slidably connected to the top of the tool holder base plate (11), the worm gear box (15) is fixedly connected to the top of the tool holder base plate (11), and the tool (13) is plug-in installed below the slide seat (12).

10. The speed-adjustable feeding tool holder device according to claim 1, characterized in that: The worm gear box (15) is internally rotatably connected with a worm (16) and a worm wheel (17), the worm (16) cooperates with the worm wheel (17), a feed screw (14) is fixedly connected at the center of the worm wheel (17), the feed screw (14) is rotatably connected to the worm gear box (15), one end of the feed screw (14) is threadedly connected to the slide seat (12), a flywheel (18) is fixedly connected to the bottom of the linkage shaft (3), and the worm shaft (2) is fixedly connected below the worm (16).

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