Small material hoisting equipment for boring and milling machining center

Abstract

The invention relates to the field of hoisting equipment, and discloses small material hoisting equipment for a boring and milling machining center, the small material hoisting equipment comprises a portal rail and a hoisting mechanism arranged on the portal rail, four sets of protection mechanisms are arranged on the two sides of the hoisting mechanism, each protection mechanism comprises connecting assemblies arranged on the two sides of the hoisting mechanism, and wall scraping assemblies are arranged in the connecting assemblies; when a certain position of the portal rail sinks and deforms due to long-term stress or uneven settlement, the sinking and deforming position of the portal rail extrudes the rotating wheel, the rotating wheel moves downwards to extrude the elastic arc-shaped piece, the elastic arc-shaped piece makes contact with the induction rod, the sensor induces that the elastic arc-shaped piece makes contact with the induction rod through the induction rod, and the detection assembly detects that the elastic arc-shaped piece makes contact with the induction rod. And the signal transmission module sends a sensor signal to a control end to prompt that the gantry track is in an abnormal state of sinking deformation, so that the influence on the hoisting stability of the processed material due to the abnormal state of the gantry track and untimely maintenance is prevented.

Description

Technical Field

[0001] The invention relates to the technical field of lifting equipment, in particular to a small material lifting equipment for a boring and milling machining center. Background Art

[0002] In the patent application with application publication number CN107720562B, it includes a gantry body, a load-bearing device, a driving device and a cleaning device, the load-bearing device, the driving device and the cleaning device are all movably installed on the gantry body, the load-bearing device includes a first moving mechanism, a load-bearing mechanism and a first driving mechanism, the cleaning device includes a cleaning base and a cleaning mechanism installed on the cleaning base for cleaning the dust accumulated on the gantry body, the driving device includes a second driving mechanism and a second moving mechanism installed on the cleaning base, and the second driving mechanism is connected to the second moving mechanism in a transmission manner. The present invention can realize the cleaning operation on the gantry body, meet the requirement that the load-bearing mechanism can move smoothly on the gantry body, and improve the working efficiency of the load-bearing mechanism in transporting goods.

[0003] In the above-mentioned patent, in the lifting equipment, only the guide rails are cleaned to prevent a large amount of dust from accumulating on the rails of the gantry crane. The dust may affect the travel of the load-bearing vehicle on the rails, and further affect the traction of the heavy objects, which may cause safety hazards during the travel. However, in the process of using the lifting equipment, the guide rails may cause track displacement and deformation due to long-term stress or uneven settlement. The sinking and deformation of the rails may cause the crane trolley to derail, affecting the stable operation of the crane. The above-mentioned patent is unable to monitor the track status, so that the deformation of the rails during use affects the lifting of materials. Summary of the invention

[0004] The object of the present invention is to provide a small material lifting device for a boring and milling machining center to solve the problems raised in the above background technology.

[0005] In order to solve the above technical problems, the technical solution of the present invention is: a small material lifting equipment for a boring and milling machining center, comprising a gantry track and a lifting mechanism arranged on the gantry track, four sets of protective mechanisms for detecting and cleaning the gantry track are arranged on both sides of the lifting mechanism, the protective mechanism comprises a connecting assembly arranged on both sides of the lifting mechanism, a scraping assembly for cleaning dust and impurities on the gantry track is arranged inside the connecting assembly, a cleaning assembly for blowing off dust and impurities is arranged on the other side of the connecting assembly, an extrusion assembly is arranged between the cleaning assembly and the scraping assembly, and a detection assembly is arranged below the connecting assembly; The detection component includes an L-shaped block arranged below the connecting component, one side of the L-shaped block is rotatably connected to a cleaning rod, the cleaning rod is located above the bottom of the gantry track, an installation cavity is opened below the L-shaped block, sliding grooves are arranged on both sides of the installation cavity, a rotating wheel is arranged inside the installation cavity, the top of the rotating wheel is always in contact with the bottom of the gantry track, the rotating wheel is rotatably connected to a slider through a connecting rod, the slider is slidably connected in the sliding groove, a third spring is arranged between the bottom of the slider and the bottom of the sliding groove, an elastic arc piece is fixedly arranged below the inside of the sliding groove, a sensing rod is fixedly connected to the bottom of the sliding groove, the sensing rod is located directly below the elastic arc piece, and the sensing rod does not contact the elastic arc piece.

[0006] Preferably, the connection assembly comprises connection plates arranged on both sides of the lifting mechanism, one side of the connection plate is fixedly connected to a fixing frame, an annular groove is provided at the lower interior of the fixing frame, and an exhaust groove is provided at the lower side of one side of the fixing frame.

[0007] Preferably, the wall scraper assembly includes a first gear rotatably connected above the fixed frame, a second gear is fixedly connected to the first gear below via a connecting rod passing through the fixed frame, a rotating column is fixedly connected to the second gear below, a plurality of sliding grooves are provided on the outside of the rotating column, a scraper is slidably connected inside the sliding groove, and a plurality of first springs are arranged between one side of the scraper and one side inside the sliding groove.

[0008] Preferably, the extrusion assembly includes a third gear rotatably connected to the upper part of the fixed frame, the third gear is meshingly connected to the second gear, the lower end of the third gear is fixedly connected to a connecting column, two arc-shaped grooves are provided on the outer side of the connecting column, the arc-shaped grooves are symmetrically arranged on the outer side of the connecting column, the lower end of the connecting column is fixedly connected to a sliding ring, and the sliding ring is slidably connected to the annular groove.

[0009] Preferably, the cleaning assembly includes a fixed block fixedly connected to one side of the fixed frame, an airbag is fixedly arranged on one side of the fixed block, an exhaust channel is opened in the fixed block, a one-way air outlet valve is arranged in the exhaust channel, and an exhaust groove connected to the exhaust channel is opened on one side of the fixed block.

[0010] Preferably, an air cavity is opened on one side of the fixed block provided with the airbag, the air cavity is connected with the exhaust channel, the air cavity is close to the door frame track, an elastic arc ring is fixedly connected to one side of the air cavity, a circular plate is fixedly connected to the elastic arc ring, a second spring is fixedly arranged between the circular plate and the air cavity, the elastic arc ring and the circular plate are fixedly connected to the airbag, an air inlet hole is arranged on one side of the fixed block, the air inlet hole is connected with the air cavity, and a one-way air inlet valve is arranged in the air inlet hole.

[0011] Preferably, teeth corresponding to the first gear are fixedly provided on both sides of the portal track, and the teeth are meshedly connected with the first gear.

[0012] Preferably, the lifting mechanism is composed of a driving assembly, an electric hoist, a hook, and two mounting plates. The two mounting plates are respectively arranged on both sides of the gantry track. The two mounting plates are fixed together by threaded rods, and connecting plates are fixedly connected on both sides of each mounting plate.

[0013] Compared with the prior art, the technical solution of the present invention has the following advantages: (1) A wall scraper assembly and a cleaning assembly are arranged on both sides of the lifting mechanism. When the lifting mechanism moves, it drives the protective mechanism to move on both sides of the gantry track. The first gear meshes with the teeth and rotates. The first gear rotating column rotates, and the rotating column drives the scraper to contact the gantry track. The wall scraper assembly moves with the lifting mechanism. All the first springs scrape the impurities on the gantry track. The impurities on the gantry track fall above the bottom of the gantry track. The rotation of the first gear drives the second gear to rotate. The second gear drives the connecting column to rotate through the third gear. When the arc groove is not facing the airbag, the connecting column squeezes the airbag. The airbag squeezes the air in the air cavity into the exhaust channel, and the air is discharged from the exhaust groove and the exhaust slot to the top of the bottom of the gantry track, blowing away the dust and impurities on the gantry track to prevent the equipment from slipping due to unclean tracks and prevent dust, metal chips and other impurities from affecting the performance and life of the lifting equipment; (2) The fixed frame drives the L-shaped block to move when it moves, and the L-shaped block drives the cleaning rod to move above the bottom of the gantry track to clean the dust and impurities above the bottom of the gantry track, so that the impurities and dust above the bottom of the gantry track are separated from the gantry track. The dust and impurities are blown away by the airflow discharged from the exhaust groove and the exhaust slot to prevent dust, metal chips and other impurities from affecting the performance and life of the lifting equipment. When a part of the gantry track sinks and deforms due to long-term stress or uneven settlement, the rotating wheel contacts the sinking and deformed position of the gantry track before the driving component, and the gantry track sinks. The deformation part squeezes the rotating wheel, and the rotating wheel drives the slider to move downward through the connecting rod. The rotating wheel moves downward as the gantry track sinks and the deformation part moves downward, squeezing the elastic arc piece, so that the elastic arc piece contacts the sensing rod. The sensor senses the contact between the elastic arc piece and the sensing rod through the sensing rod, and the signal transmission module sends the sensor signal to the control end, prompting the gantry track to be in an abnormal state of sinking and deformation. When the lifting equipment is working, the state of the gantry track can be monitored to prevent the stability of the lifting of the processed materials from being affected due to the abnormal state of the gantry track and untimely maintenance. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2This is a schematic diagram of the gantry track structure of the present invention; Figure 3 It is a schematic diagram of the structure of the lifting mechanism of the present invention; Figure 4 It is a schematic diagram of the structure of the protection mechanism of the present invention; Figure 5 This is a schematic diagram of the split structure of the connection assembly of the present invention; Figure 6 This is a schematic diagram of the disassembled structure of the wall scraping assembly of the present invention; Figure 7 This is a schematic diagram of the split structure of the extrusion assembly of the present invention; Figure 8 This is a schematic diagram of the disassembly structure of the cleaning component of the present invention; Fig. 9 This is a schematic diagram of the structure of the detection component of the present invention; Fig.10 This is a schematic diagram of the split structure of the detection component of the present invention.

[0015] In the figure: 1, gantry rail; 11, teeth; 2, lifting mechanism; 21, driving assembly; 22, electric hoist; 23, hook; 24, mounting plate; 3, protection mechanism; 31, connecting assembly; 311, connecting plate; 312, fixing frame; 313, annular groove; 314, exhaust groove; 32, scraper assembly; 321, first gear; 322, second gear; 323, rotating column; 324, slide; 325, scraper; 326, first spring; 33, extrusion assembly; 331, third gear; 332, Connecting column; 333, arc groove; 334, sliding ring; 34, cleaning assembly; 341, fixing block; 342, air bag; 343, exhaust channel; 344, exhaust groove; 345, air cavity; 346, elastic arc ring; 347, round plate; 348, second spring; 35, detection assembly; 351, L-shaped block; 352, cleaning rod; 353, installation cavity; 354, sliding groove; 355, rotating wheel; 356, slider; 357, third spring; 358, elastic arc sheet; 359, sensing rod. DETAILED DESCRIPTION

[0016] In order to make the purpose, technical solution and advantages of the embodiments of the present disclosure clearer, the technical solution of the embodiments of the present disclosure will be clearly and completely described below in conjunction with the drawings of the embodiments of the present disclosure. Obviously, the described embodiments are part of the embodiments of the present disclosure, not all of the embodiments. Based on the described embodiments of the present disclosure, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present disclosure.

[0017] Unless otherwise defined, the technical terms or scientific terms used in the present disclosure should be understood by people with ordinary skills in the field to which the present disclosure belongs. "Include" or "comprise" and other similar words used in the present disclosure mean that the elements or objects appearing before the word include the elements or objects listed after the word and their equivalents, without excluding other elements or objects. "Connect" or "connected" and other similar words are not limited to physical or mechanical connections, but may also include electrical connections, whether direct or indirect. "Up", "down", "left", "right", etc. are only used to indicate relative positional relationships. When the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0018] like Figures 1 to 10 As shown, a small material lifting equipment for a boring and milling machining center provided by the present invention comprises a gantry track 1 and a lifting mechanism 2 arranged on the gantry track 1, four sets of protection mechanisms 3 for detecting and cleaning the gantry track 1 are arranged on both sides of the lifting mechanism 2, and the characteristics are as follows: the protection mechanism 3 comprises a connecting assembly 31 arranged on both sides of the lifting mechanism 2, a scraping assembly 32 for cleaning dust and impurities on the gantry track 1 is arranged in the connecting assembly 31, a cleaning assembly 34 for blowing off dust and impurities is arranged on the other side of the connecting assembly 31, an extrusion assembly 33 is arranged between the cleaning assembly 34 and the scraping assembly 32, and a detection assembly 35 for detecting deformation of the gantry track 1 due to long-term stress or uneven settlement is arranged below the connecting assembly 31; The detection component 35 includes an L-shaped block 351 arranged below the connection component 31, one side of the L-shaped block 351 is rotatably connected to a cleaning rod 352, the cleaning rod 352 is located above the bottom of the door frame track 1, an installation cavity 353 is opened below the L-shaped block 351, and sliding grooves 354 are arranged on both sides of the installation cavity 353. A rotating wheel 355 is arranged inside the installation cavity 353, and the upper part of the rotating wheel 355 is always in contact with the bottom of the door frame track 1. The rotating wheel 355 is rotatably connected to a slider 356 through a connecting rod, and the slider 356 is slidably connected to the slider 356. In the movable groove 354, a third spring 357 is fixedly arranged below the slider 356, and the other end of the third spring 357 is fixedly arranged below the inside of the sliding groove 354. An elastic arc-shaped piece 358 is fixedly arranged below the inside of the sliding groove 354. A sensing rod 359 is arranged below the inside of the sliding groove 354. The sensing rod 359 is located directly below the elastic arc-shaped piece 358, and the sensing rod 359 does not contact the elastic arc-shaped piece 358. A sensor and a signal transmission module are arranged inside the L-shaped block 351, and the sensor is connected to the sensing rod 359.

[0019] The connection assembly 31 includes connection plates 311 arranged on both sides of the lifting mechanism 2. A fixing frame 312 is fixedly connected to one side of the connection plate 311. An annular groove 313 is opened at the lower part of the fixing frame 312. An exhaust groove 314 is opened at the lower part of one side of the fixing frame 312.

[0020] The wall scraper assembly 32 includes a first gear 321 rotatably connected to the top of the fixed frame 312, a second gear 322 is fixedly connected to the bottom of the first gear 321 through a connecting rod penetrating the fixed frame 312, a rotating column 323 is fixedly connected to the bottom of the second gear 322, a plurality of sliding grooves 324 are provided on the outside of the rotating column 323, a scraper 325 is slidably connected inside the sliding groove 324, a plurality of first springs 326 are fixedly provided on one side of the scraper 325, and the other end of the first spring 326 is fixedly connected to one side of the inside of the sliding groove 324.

[0021] The extrusion assembly 33 includes a third gear 331 rotatably connected to the upper part of the fixed frame 312, and the third gear 331 is meshed with the second gear 322. The lower end of the third gear 331 is fixedly connected to a connecting column 332, and two arc grooves 333 are provided on the outer side of the connecting column 332, and the arc grooves 333 are symmetrically arranged on the outer side of the connecting column 332. The lower end of the connecting column 332 is fixedly connected to a sliding ring 334, and the sliding ring 334 is slidably connected to the annular groove 313.

[0022] The cleaning assembly 34 includes a fixed block 341 fixedly connected to one side of the fixed frame 312, an air bag 342 is fixedly arranged on one side of the fixed block 341, an exhaust channel 343 is opened in the fixed block 341, a one-way air outlet valve is arranged in the exhaust channel 343, and an exhaust groove 344 connected to the exhaust channel 343 is opened on one side of the fixed block 341.

[0023] An air cavity 345 is provided on one side of the fixed block 341 on which the air bag 342 is provided, and the air cavity 345 is connected in a through-connection with the exhaust passage 343, the air cavity 345 is close to the gantry rail 1, an elastic arc ring 346 is fixedly connected to one side of the air cavity 345, a circular plate 347 is fixedly connected to the elastic arc ring 346, a second spring 348 is fixedly provided on one side of the circular plate 347, the other end of the second spring 348 is fixedly connected to one side of the inside of the air cavity 345, the elastic arc ring 346 and the circular plate 347 are fixedly connected to the air bag 342, an air inlet hole is provided on one side of the fixed block 341, the air inlet hole is connected in a through-connection with the air cavity 345, and a one-way air inlet valve is provided in the air inlet hole.

[0024] Teeth 11 corresponding to the first gear 321 are fixedly arranged on both sides of the door frame rail 1 , and the teeth 11 are meshed and connected with the first gear 321 .

[0025] The lifting mechanism 2 is composed of a driving assembly 21, an electric hoist 22, a hook 23, and two mounting plates 24. The two mounting plates 24 are respectively arranged on both sides of the gantry track 1. The two mounting plates 24 are fixed together by threaded rods. Each of the mounting plates 24 is fixedly connected with a connecting plate 311 on both sides.

[0026] The working principle of the present invention is as follows: when a lifting device is used to lift materials during boring and milling processing, the mounting plate 24 drives the lifting mechanism 2 to move as a whole on the gantry track 1, and is connected to the lifting device through the hook 23, and the processing parts are lifted by the lifting device; When the lifting mechanism 2 moves, it drives the protection mechanism 3 to move on both sides of the gantry track 1, and the first gear 321 meshes and rotates with the tooth 11. The first gear 321 drives the rotating column 323 to rotate through the connecting rod, and the rotating column 323 rotates to drive the scraper 325 to rotate, so that the scraper 325 contacts the gantry track 1. When the scraper 325 contacts the gantry track 1, it is squeezed into the slide groove 324 by the gantry track 1. When the slide groove 324 is perpendicular to the gantry track 1, the slide groove 324 is pushed out of the slide groove 324 by the first spring 326. The scraper 325 is always in contact with the gantry track 1. Because the scraper assembly 32 moves with the lifting mechanism 2, the first spring 326 scrapes off the impurities on the gantry track 1, and the impurities on the gantry track 1 fall above the bottom of the gantry track 1. When the first gear 321 rotates, the second gear 322 is driven to rotate, and the second gear 322 is meshed to drive the third gear 331 to rotate, and the third gear 331 drives the connecting column 332 to rotate. When the arc groove 333 faces the airbag 342, the airbag 342 is in a normal state. When the arc groove 333 does not face the airbag 342, the connecting column 332 squeezes the airbag 342, and the airbag 342 squeezes the air in the air cavity 345 into the exhaust channel 343, and is discharged from the exhaust groove 344 and the exhaust groove 314, and blows to the top of the bottom of the gantry track 1 to blow away the dust and impurities on the gantry track 1. When the arc groove 333 faces the airbag 342, the second spring 348 pushes the circular plate 347 and the elastic arc ring 346 to move toward the arc groove 333, and the circular plate 347 and the elastic arc ring 346 prop up the airbag 342. At this time, external air enters the air cavity 345 through the air inlet hole; The fixed frame 312 drives the L-shaped block 351 to move when moving, and the L-shaped block 351 drives the cleaning rod 352 to move above the bottom of the gantry track 1 to clean the dust and impurities above the bottom of the gantry track 1, so that the impurities and dust above the bottom of the gantry track 1 are separated from the gantry track 1, and the dust and impurities are blown away by the airflow discharged from the exhaust groove 344 and the exhaust groove 314; When the L-shaped block 351 moves, it drives the rotating wheel 355 to move. The upper part of the rotating wheel 355 is always in contact with the bottom surface of the gantry track 1. When a certain part of the gantry track 1 sinks and deforms due to long-term stress or uneven settlement, the rotating wheel 355 contacts the sinking and deformed position of the gantry track 1 before the driving component 21. The sinking and deformed part of the gantry track 1 squeezes the rotating wheel 355. The rotating wheel 355 drives the slider 356 to move downward through the connecting rod, squeezing the third spring 357. The rotating wheel 355 moves downward with the sinking and deformed part of the gantry track 1, and squeezes the elastic arc piece 358, so that the elastic arc piece 358 contacts the sensing rod 359. The sensor is connected to the sensing rod. 359 senses that the elastic arc piece 358 is in contact with the sensing rod 359, and the signal transmission module sends the sensor signal to the control end, indicating that the gantry track 1 is in an abnormal state of sinking and deformation. When the detection component 35 passes through the sinking and deformation position of the gantry track 1, the third spring 357 pushes the slider 356 to rise, causing the rotating wheel 355 to rise and no longer squeeze the elastic arc piece 358. The elastic arc piece 358 is reset and no longer in contact with the sensing rod 359, so that when the lifting equipment is working, the state of the gantry track 1 can also be monitored to prevent the stability of the lifting of the processed materials from being affected by the abnormal state of the gantry track 1 and untimely maintenance.

[0027] The above embodiments are only exemplary embodiments of the present invention and are not intended to limit the present invention. The protection scope of the present invention is defined by the claims. Those skilled in the art may make various modifications or equivalent substitutions to the present invention within the essence and protection scope of the present invention, and such modifications or equivalent substitutions shall also be deemed to fall within the protection scope of the present invention.

Claims

1. A small material lifting device for a boring and milling machining center, comprising a gantry track (1) and a lifting mechanism (2) arranged on the gantry track (1), wherein four sets of protection mechanisms (3) for detecting and cleaning the gantry track (1) are arranged on both sides of the lifting mechanism (2), characterized in that: The protection mechanism (3) comprises connection components (31) arranged on both sides of the lifting mechanism (2), a wall scraping component (32) for cleaning dust and impurities on the gantry track (1) is arranged inside the connection component (31), a cleaning component (34) for blowing away dust and impurities is arranged on the other side of the connection component (31), a pressing component (33) is arranged between the cleaning component (34) and the wall scraping component (32), and a detection component (35) is arranged below the connection component (31); The detection assembly (35) comprises an L-shaped block (351) arranged below the connection assembly (31); a cleaning rod (352) is rotatably connected to one side of the L-shaped block (351); the cleaning rod (352) is located above the bottom of the door frame track (1); a mounting cavity (353) is provided below the L-shaped block (351); sliding grooves (354) are provided on both sides of the mounting cavity (353); a rotating wheel (355) is provided inside the mounting cavity (353); the top of the rotating wheel (355) is always in contact with the bottom of the door frame track (1); the rotating wheel (355) is provided in a manner that the rotating wheel (355) is rotated in a direction ... 355) is rotatably connected to a slider (356) through a connecting rod, the slider (356) is slidably connected in the sliding groove (354), a third spring (357) is arranged between the lower part of the slider (356) and the lower part of the sliding groove (354), an elastic arc-shaped piece (358) is fixedly arranged at the lower part of the sliding groove (354), a sensing rod (359) is fixedly connected to the lower part of the sliding groove (354), the sensing rod (359) is located directly below the elastic arc-shaped piece (358), and the sensing rod (359) does not contact the elastic arc-shaped piece (358).

2. A small material lifting device for a boring and milling machining center according to claim 1, characterized in that: The connection assembly (31) comprises connection plates (311) arranged on both sides of the lifting mechanism (2), one side of the connection plate (311) being fixedly connected to a fixing frame (312), an annular groove (313) being provided at the lower part of the fixing frame (312), and an exhaust groove (314) being provided at the lower part of one side of the fixing frame (312).

3. A small material lifting device for a boring and milling machining center according to claim 2, characterized in that: The wall scraping assembly (32) comprises a first gear (321) rotatably connected to the top of the fixed frame (312); a second gear (322) is fixedly connected to the bottom of the first gear (321) via a connecting rod penetrating the fixed frame (312); a rotating column (323) is fixedly connected to the bottom of the second gear (322); a plurality of sliding grooves (324) are provided on the outside of the rotating column (323); a scraper (325) is slidably connected to the inside of the sliding groove (324); and a plurality of first springs (326) are provided between one side of the scraper (325) and one side inside the sliding groove (324).

4. A small material lifting device for a boring and milling machining center according to claim 3, characterized in that: The extrusion assembly (33) comprises a third gear (331) rotatably connected to the upper part of the interior of the fixed frame (312); the third gear (331) is meshingly connected to the second gear (322); a connecting column (332) is fixedly connected to the lower end of the third gear (331); two arc-shaped grooves (333) are provided on the outer side of the connecting column (332); the arc-shaped grooves (333) are symmetrically arranged on the outer side of the connecting column (332); a sliding ring (334) is fixedly connected to the lower end of the connecting column (332); and the sliding ring (334) is slidably connected to the annular groove (313).

5. A small material lifting device for a boring and milling machining center according to claim 4, characterized in that: The cleaning assembly (34) comprises a fixed block (341) fixedly connected to one side of the interior of the fixed frame (312); an air bag (342) is fixedly arranged on one side of the fixed block (341); an exhaust channel (343) is provided in the fixed block (341); a one-way exhaust valve is provided in the exhaust channel (343); and an exhaust groove (344) is provided on one side of the fixed block (341) and is connected to the exhaust channel (343).

6. A small material lifting device for a boring and milling machining center according to claim 5, characterized in that: The fixed block (341) is provided with an air chamber (345) on one side of the air bag (342), the air chamber (345) is close to the door frame track (1), the air chamber (345) is connected to the exhaust passage (343), an elastic arc ring (346) is fixedly connected to one side of the air chamber (345), a circular plate (347) is fixedly connected to the elastic arc ring (346), a second spring (348) is fixedly arranged between the circular plate (347) and the air chamber (345), the elastic arc ring (346) and the circular plate (347) are fixedly connected to the air bag (342), an air inlet hole is provided on one side of the fixed block (341), the air inlet hole is connected to the air chamber (345), and a one-way air inlet valve is arranged in the air inlet hole.

7. The small material lifting equipment for a boring and milling machining center according to claim 1, characterized in that: Teeth (11) corresponding to the first gear (321) are fixedly arranged on both sides of the door frame track (1), and the teeth (11) are meshingly connected with the first gear (321).

8. The small material lifting equipment for a boring and milling machining center according to claim 2, characterized in that: The lifting mechanism (2) is composed of a driving assembly (21), an electric hoist (22), a hook (23), and two mounting plates (24). The two mounting plates (24) are respectively arranged on both sides of the gantry track (1). The two mounting plates (24) are fixed together by threaded rods. Both sides of each mounting plate (24) are respectively fixedly connected to connecting plates (311).

Images