CN214291937U - Numerical control gantry machining center - Google Patents

Abstract

The application relates to a numerical control gantry machining center, which comprises a base guide rail and a workbench arranged on the base guide rail, the base guide rail is provided with a central machine body, the central machine body is provided with a cable protection device, the cable protection device comprises a plurality of towline link units which are hinged with each other, wherein each towline link unit comprises a first side plate and a second side plate which are arranged in parallel, a connecting beam and a clamping beam are arranged between the first side plate and the second side plate, a plurality of clamping plates arranged in parallel are connected on the connecting beam in a sliding manner, a space between every two adjacent clamping plates is used for accommodating a cable to pass through, the connecting beam is provided with a fixing mechanism for fixing the position of the clamping plate, one end of the clamping beam is hinged to the first side plate, and the other end of the clamping beam is connected with the second side plate through a clamping mechanism in a clamping mode. This application has and makes numerical control longmen center at the during operation, can carry out the effect of better protection to the cable.

Description

Numerical control gantry machining center

Technical Field

The application relates to the field of numerical control machine tool equipment, in particular to a numerical control gantry machining center.

Background

At present, the numerical control machining center is one of numerical control machines with highest yield and most extensive application in the world. The numerical control machining center is a high-efficiency automatic machine tool which consists of mechanical equipment and a numerical control system and is suitable for machining complex parts. The integrated machining capacity is strong, a workpiece can finish more machining contents after being clamped once, and the integrated machining method is suitable for rough machining and finish machining of large and medium-sized parts in various industries.

The prior Chinese utility model patent with the granted publication number of CN207746816U discloses a numerical control gantry machining center, which comprises a lathe bed, a sectional type T-shaped groove platform, a left upright post, a right upright post, a beam, a saddle, a protective door, a tool magazine, a machine head, an operation table and an electric control box; the lathe bed consists of a left supporting frame, a right supporting frame, a bottom supporting bracket and a processing mounting frame; the bottom parts of the left support frame and the right support frame are respectively connected to the left side and the right side of the bottom support bracket, and the processing mounting frame is connected to the top parts of the left support frame and the right support frame; the processing mounting frame is a latticed metal frame; the sectional type T-shaped groove platform is arranged on the top of the processing mounting frame; the sectional type T-shaped groove platform is composed of a plurality of installation positioning rods, and each installation positioning rod is arranged above the processing mounting frame at equal intervals from left to right. The problems that a gantry column in the current numerical control gantry machining center is unstable in the moving process and the drainage and chip removal of a lathe bed are not rapid are solved.

In view of the above-mentioned related technologies, the inventor believes that, because there are many parts and mechanisms in the above-mentioned numerical control gantry machining center, many cables of different specifications and models are needed to provide power for the parts and mechanisms in the numerical control gantry machining center, but because the parts in the gantry machining center need to be moved frequently when machining the parts, the cables cannot be protected well, so that the cables are easy to entangle, wear, pull off and scatter, and need to be solved urgently.

SUMMERY OF THE UTILITY MODEL

In order to make numerical control longmen center at the during operation, can carry out better protection to the cable, this application provides numerical control longmen machining center.

The numerical control gantry machining center adopts the following technical scheme:

numerical control longmen machining center, including base guide rail and the workstation of setting on the base guide rail, be provided with the center machine body on the base guide rail, install cable protection device on the center machine body, cable protection device includes a plurality of articulated tow chain joint units each other, tow chain joint unit includes two first curb plates and the second curb plate of mutual parallel arrangement, be provided with between first curb plate and the second curb plate and connect crossbeam and joint crossbeam, it is connected with a plurality of parallel arrangement joint boards to slide on the connection crossbeam, and is adjacent space between the joint board is used for holding the cable and passes through, be provided with on the connection crossbeam and be used for the fixed establishment in joint board position, the one end of joint crossbeam is articulated with first curb plate, the other end of joint crossbeam with the second curb plate passes through the joint mechanism joint.

By adopting the technical scheme, when the numerical control gantry machining center works, a workpiece to be machined can be placed on the workbench, then the workbench can be slid to the center machine body through the base guide rail, and then the center machine body is started to machine the workpiece. In the process of the work of the center machine body, the cables for providing electric power for the center machine are placed between the adjacent clamping plates, the drag link unit can move along with the movement of the center machine body at the moment, the cables are protected in the space formed by the first side plate, the second side plate, the clamping plates, the connecting cross beams and the clamping cross beams, and therefore the cables can be better protected when the center machine body works. The joint board slides with the connection crossbeam and is connected for distance between two adjacent joint boards is adjustable, thereby makes the cable of different models all can place between two joint boards, promotes the suitability of joint board. One side of joint crossbeam is articulated with first curb plate, and the opposite side passes through the joint mechanism joint with the second curb plate to make the installation of cable more convenient, still can open local joint crossbeam and overhaul convenient and practical to the cable when cable local fault, simultaneously.

Preferably, the two ends of the connecting beam are detachably connected with the first side plate or the second side plate through bolts.

Through adopting above-mentioned technical scheme, staff's accessible bolt realizes connecting the crossbeam and being connected with dismantling of first curb plate or second curb plate for placing and demolising of cable is convenient.

Preferably, the connecting beam is provided with a mounting groove, the mounting groove is T-shaped, and the fixing mechanism is located in the mounting groove.

Through adopting above-mentioned technical scheme, the mounting groove that the T type set up makes sliding of joint board more stable, makes the fixed of connecting the crossbeam to joint board more stable simultaneously.

Preferably, fixed establishment includes that the parallel places the grip block in the mounting groove bottom, the grip block with the mounting groove slides and is connected, be provided with a plurality of compression spring between the bottom of grip block and mounting groove, compression spring top is held the grip block and is removed to the direction of joint board, the joint board is provided with the sliding block towards on the lateral wall of mounting groove, sliding block T type sets up, the sliding block can be followed the length direction of mounting groove and slided, just the grip block can be fixed the sliding block in the mounting groove.

Through adopting above-mentioned technical scheme, staff's accessible sliding block drives the joint board and slides along the length direction of mounting groove, removes the joint board to suitable position after afterwards, and compression spring can push up and hold the stable fixed position at the mounting groove of grip block with the sliding block, and then makes the joint board can carry out the regulation of interval according to the cable of different models, promotes the suitability of joint board.

Preferably, an elastic sheet is arranged on the side wall of the sliding block facing the clamping plate, and a plurality of clamping grooves are formed in the side wall of the clamping plate facing the sliding block.

Through adopting above-mentioned technical scheme, can joint each other between shell fragment and the screens groove fixedly, and then increased the joint board to the cable press from both sides establish intensity, promoted the stationary stability to because the shell fragment has certain elasticity, the shell fragment is jumped between the screens groove of difference in proper order when the sliding block slides in the mounting groove along with the sliding block, thereby realizes the stage screens of joint board.

Preferably, the latch mechanism is including seting up joint groove on the joint crossbeam, the round pin axle is worn to be equipped with coaxially in the joint inslot, the one end of round pin axle is passed the lateral wall of joint crossbeam and slides with the lateral wall of joint crossbeam and be connected, just the perpendicular rigid coupling of tip that the round pin axle passed the joint crossbeam has the joint pole, the rigid coupling has the mounting panel on the second curb plate, set up the hole of stepping down that is used for holding the joint pole and passes on the mounting panel, set up the circular slot that is used for holding joint pole rotation joint in the mounting panel, the circular slot communicates each other with the hole of stepping down, the coaxial rigid coupling in the joint inslot has solid fixed ring, gu fixed ring cover establishes on the global of round pin axle, gu be provided with in the space that the diapire in joint groove and be used for holding the top to sell the top and keep away from the hole direction of stepping down and carry out the top that removes and hold the subassembly.

Through adopting above-mentioned technical scheme, the staff places the cable back between the joint board again, alright rotate the tip of joint crossbeam to mounting panel department, rotate the round pin axle afterwards, make the joint pole of round pin axle tip counterpoint with the hole of stepping down each other, press the round pin axle after that, make the joint pole enter into the circular slot through the hole of stepping down, rotate the round pin axle afterwards, with joint pole joint in the circular slot and unable slippage, loosen the round pin axle this moment, the round pin axle can be held the effect of subassembly under the top and removed to the direction of keeping away from the hole of stepping down, and then increase the frictional force between joint pole and the circular slot lateral wall, make stable the fixing in the circular slot of joint pole, thereby with stable the fixing in mounting panel department of joint crossbeam.

Preferably, the jacking assembly comprises a sliding ring fixedly connected to the circumferential surface of the pin shaft, a jacking spring is arranged between the sliding ring and the bottom of the clamping groove, and the jacking spring is sleeved on the pin shaft.

Through adopting above-mentioned technical scheme, when slipping the joint pole into the circular slot, the top is held the spring and can take place the elastic deformation of shrink under the pressure of the ring that slides, and the top after losing pressure is held the spring and can be held the ring that slides and move to the direction of keeping away from the hole of stepping down in the ring of sliding, and then drives the round pin axle and slides together and make the joint pole fix on the circular slot to fix the joint crossbeam on the mounting panel.

Preferably, a nut is fixedly connected to the end part, deviating from the clamping rod, of the pin shaft.

Through adopting above-mentioned technical scheme, the staff of being convenient for presses and rotates the round pin axle through the setting of nut.

To sum up, the application comprises the following beneficial technical effects:

1. the cable is protected in a space formed by the first side plate, the second side plate, the clamping plate, the connecting beam and the clamping beam, so that the cable can be better protected when the central machine body works;

2. the clamping plates are connected with the connecting cross beam in a sliding mode, so that the distance between two adjacent clamping plates is adjustable, cables of different types can be placed between the two clamping plates, and the applicability of the clamping plates is improved;

3. one side of the clamping cross beam is hinged with the first side plate, and the other side of the clamping cross beam is clamped with the second side plate through the clamping mechanism, so that the cable is more convenient to install, and meanwhile, when a local fault occurs in the cable, the local clamping cross beam can be opened to overhaul the cable, and the clamping cross beam is convenient and practical;

4. the staff places the cable back between the joint board again, alright rotate the tip of joint crossbeam to mounting panel department, rotate the round pin axle afterwards, make the joint pole of round pin axle tip counterpoint each other with the hole of stepping down, press the round pin axle after that, make the joint pole enter into the circular slot through the hole of stepping down, rotate the round pin axle afterwards, with joint pole joint in the circular slot and unable slippage, loosen the round pin axle this moment, the round pin axle can be moved to the direction of keeping away from the hole of stepping down under the effect of subassembly is held on the top, and then increase the frictional force between joint pole and the circular slot lateral wall, make stable the fixing in the circular slot of joint pole, thereby fix the stable mounting in mounting panel department of joint crossbeam.

Drawings

Fig. 1 is a schematic overall structure diagram of an embodiment of the present application.

Fig. 2 is a schematic view of a partial structure for embodying the protection device.

Fig. 3 is a sectional view showing the internal structure of the connecting beam and the clamping beam.

Fig. 4 is a schematic structural diagram for embodying the snap plate and the slide block.

Fig. 5 is a schematic structural diagram for embodying the clamping mechanism.

Fig. 6 is a partially enlarged schematic view of a portion a in fig. 5.

In the figure, 1, a base guide rail; 11. a work table; 111. a center machine body; 2. a protection device; 21. a first side plate; 22. a second side plate; 23. connecting the cross beam; 231. a clamping and connecting plate; 232. a bolt; 233. mounting grooves; 24. clamping a cross beam; 3. a fixing mechanism; 31. a clamping plate; 311. a clamping groove; 32. a compression spring; 4. a clamping mechanism; 41. a clamping groove; 411. a fixing ring; 42. a pin shaft; 421. a nut; 422. a clamping and connecting rod; 43. mounting a plate; 431. a hole of abdication; 432. a circular groove; 44. a slip ring; 45. a jacking spring; 5. a sliding block; 51. an elastic sheet.

Detailed Description

The present application is described in further detail below with reference to the attached drawings.

Referring to fig. 1 and 2, a numerical control gantry machining center disclosed in the embodiment of the present application includes a base guide rail 1 placed on the ground, a workbench 11 used for fixing a workpiece to be machined is connected to the base guide rail 1 in a sliding manner, a center machine body 111 used for machining the workpiece is further installed on the base guide rail 1, a cable protection device 2 used for protecting a cable is installed on the center machine body 111, and the cable protection device 2 can move along with the movement of the center machine body 111, so that the cable can be better protected when the center machine body 111 works.

Referring to fig. 2 and 3, the cable protection device 2 includes a plurality of towline link units, which are hinged to each other to form a chain-like structure. The drag chain link unit comprises a first side plate 21 and a second side plate 22 which are arranged in parallel, a connecting beam 23 and a clamping beam 24 are arranged between the first side plate 21 and the second side plate 22, and the first side plate 21, the second side plate 22, the connecting beam 23 and the clamping beam 24 enclose to form an annular structure for protecting cables; two ends of the connecting beam 23 are detachably connected with the first side plate 21 or the second side plate 22 through two bolts 232; and connect crossbeam 23 and slide to be connected with three parallel arrangement joint board 231, joint board 231 sets up with joint crossbeam 24 is perpendicular, and slide each other between the tip of joint board 231 and the joint crossbeam 24 and be connected, the space between the adjacent joint board 231 is used for holding the cable and passes through, be provided with on the connection crossbeam 23 and be used for the fixed establishment 3 in joint board 231 position, joint crossbeam 24's one end is articulated with first curb plate 21, joint crossbeam 24's the other end and second curb plate 22 pass through 4 joints of clamping mechanism. When protecting the cable, one end of the clamping beam 24 can be opened through the clamping mechanism 4, then the end of the clamping beam 24 is turned away from the second side plate 22 through the hinge point of the clamping beam 24 and the first side plate 21, so that the space between the clamping plates 231 is opened, then the cable is placed between the clamping plate 231 and the first side plate 21, between the two clamping plates 231 and between the clamping plate 231 and the second side plate 22, and then the clamping beam 24 is fixed on the second side plate 22 again to close the opening of the clamping plate 231, when the center machine body 111 moves, the protection device 2 moves along with the center machine body 111, so that the cable is protected.

Referring to fig. 3 and 4, the middle portion of the connecting beam 23 is provided with a mounting groove 233 along the length direction thereof, the mounting groove 233 is provided in a T shape, and the fixing mechanism 3 is located in the mounting groove 233, the length of the mounting groove 233 is equal to the length of the connecting beam 23, so that the mounting groove 233 can penetrate through the connecting beam 23, thereby facilitating the mounting of the fixing mechanism 3. The fixing mechanism 3 comprises a clamping plate 31 which is placed at the bottom of the mounting groove 233 in parallel, the cross section of the clamping plate 31 is the same as that of the bottom of the mounting groove 233, the clamping plate 31 is connected with the mounting groove 233 in a sliding manner, a plurality of compression springs 32 are arranged between the clamping plate 31 and the bottom of the mounting groove 233, two ends of each compression spring 32 are respectively fixed on opposite side walls of the clamping plate 31 and the mounting groove 233, each compression spring 32 can support the clamping plate 31 to move towards the clamping plate 231, a plurality of serrated clamping grooves 311 are formed in the side wall of the clamping plate 31, which is far away from the supporting spring 45, along the length direction of the clamping plate, and each clamping groove 311 is sequentially connected to form a complete whole; the rigid coupling has sliding block 5 on the lateral wall of chucking plate 231 towards mounting groove 233, sliding block 5 can slide along the length direction of mounting groove 233, and sliding block 5 sets up for the T type, sliding block 5's thickness is less than the thickness of mounting groove 233, sliding block 5 rigid coupling has a shell fragment 51 on the lateral wall towards grip block 31, shell fragment 51 sets up to the scarf towards the relative both sides wall of screens groove 311, thereby made things convenient for shell fragment 51 to beat between the screens groove 311 of difference. When sliding block 5 slided between mounting groove 233, because shell fragment 51 is established with the mutual card of screens groove 311 for sliding block 5 can be fixed by the screens of stage in mounting groove 233, and compression spring 32 top-holding grip block 31 can strengthen the fixed effect of grip block 31 to sliding block 5's screens, thereby makes fishplate bar 231 more stable to the fixed of cable.

Staff's accessible sliding block 5 drives joint plate 231 and slides along the length direction of mounting groove 233, removes joint plate 231 to suitable position after afterwards, and top-holding spring 45 can top-holding grip block 31 with stable the fixing position at mounting groove 233 of sliding block 5, and then makes joint plate 231 can carry out the regulation of interval according to the cable of different models, promotes joint plate 231's suitability.

Referring to fig. 5 and 6, the clamping mechanism 4 includes a clamping groove 41 formed in the clamping beam 24, the clamping groove 41 is disposed near the second side plate 22, the clamping groove 41 is cylindrical and perpendicular to the clamping beam 24, a pin shaft 42 coaxially penetrates through the clamping groove 41, an end of the pin shaft 42, which is away from the connecting beam 23, is fixedly connected with a nut 421, and the diameter of the nut 421 is adapted to the diameter of the clamping groove 41; the length of the pin shaft 42 is greater than the thickness of the clamping cross beam 24, so that one end of the pin shaft 42 can penetrate through the side wall of the clamping cross beam 24 and is connected with the side wall of the clamping cross beam 24 in a sliding manner, and a clamping rod 422 is vertically and fixedly connected to the end part of the pin shaft 42 penetrating through the clamping cross beam 24; a mounting plate 43 is fixedly connected to the second side plate 22, the mounting plate 43 is located on one side, facing the first side plate 21, of the second side plate 22, the mounting plate 43 and the second side plate 22 are arranged vertically, when the clamping cross beam 24 is located in a horizontal position, an upper side wall of the mounting plate 43 and a lower side wall of the clamping cross beam 24 are abutted to each other, a abdicating hole 431 for allowing the clamping rod 422 to pass through is formed in the mounting plate 43, the size of the abdicating hole 431 is larger than that of the clamping rod 422, so that the clamping rod 422 can pass through conveniently, a circular groove 432 for allowing the clamping rod 422 to rotatably clamp is formed in the mounting plate 43, the circular groove 432 is communicated with the abdicating hole 431, and the clamping rod 422 passes through the abdicating hole 431 and enters the circular groove 432 and then rotates the pin shaft 42 to clamp the clamping rod 422 in the circular groove 432; a fixing ring 411 is coaxially and fixedly connected in the clamping groove 41, the fixing ring 411 meets the requirement that after the pin shaft 42 fixes the clamping cross beam 24, the upper end of a nut 421 is flush with the upper side of the clamping cross beam 24, the fixing ring 411 is sleeved on the circumferential surface of the pin shaft 42, the pin shaft 42 is connected with the fixing ring 411 in a sliding manner, and the fixing ring 411 can guide and limit the vertical sliding of the pin shaft 42; a jacking assembly used for jacking the pin shaft 42 to move in the direction away from the yielding hole 431 is arranged in a space formed by the fixing ring 411 and the bottom wall of the clamping groove 41, the jacking assembly comprises a sliding ring 44 fixedly connected on the peripheral surface of the pin shaft 42, and when the sliding ring 44 is mutually abutted with the fixing ring 411, the clamping rod 422 is abutted on the lower side wall of the clamping cross beam 24; a jacking spring 45 is arranged between the sliding ring 44 and the bottom of the clamping groove 41, the jacking spring 45 is sleeved on the pin shaft 42, and the jacking spring 45 is always in a stress compression state, so that the jacking spring 45 always gives a jacking force to the sliding ring 44 to slide towards the fixing ring 411.

After the staff again places the cable between joint plate 231, alright rotate joint crossbeam 24's tip to mounting panel 43 department, later rotate round pin axle 42, make joint pole 422 and the hole 431 of stepping down of round pin axle 42 tip counterpoint each other, press down round pin axle 42 after that, make joint pole 422 enter into circular slot 432 through the hole 431 of stepping down, later rotate round pin axle 42, with joint pole 422 joint in circular slot 432 and unable slippage, loosen round pin axle 42 this moment, round pin axle 42 can move to the direction of keeping away from the hole 431 under the top of holding spring 45, and then increase the frictional force between joint pole 422 and the circular slot 432 lateral wall, make stable the fixing in circular slot 432 of joint pole 422, thereby fix joint crossbeam 24 stable in mounting panel 43 department.

The implementation principle of the numerical control gantry machining center in the embodiment of the application is as follows: when the numerical control gantry machining center works, a workpiece to be machined can be placed on the workbench 11, then the workbench 11 is slid to the center machine body 111 through the base guide rails 1, and then the center machine body 111 is started to machine the workpiece. In the working process of the center machine body 111, cables for providing power for the center machine are placed between the adjacent clamping plates 231, the drag link unit can move along with the movement of the center machine body 111 at the moment, and the cables are protected in a space formed by the first side plate 21, the second side plate 22, the clamping plates 231, the connecting cross beam 23 and the clamping cross beam 24, so that the cables can be better protected when the center machine body 111 works.

When placing the cable between joint plate 231, the accessible rotates round pin axle 42 for joint pole 422 is through stepping down hole 431 and holding down circular slot 432 in the top of propping up holding spring 45, then changes joint crossbeam 24 from joint plate 231, after adjusting the interval between joint plate 231 according to the cable of different models afterwards, places the cable between joint plate 231, then fixes joint crossbeam 24 on second curb plate 22 through clamping mechanism 4, accomplishes the fixed to the cable.

The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims (8)

1. Numerical control longmen machining center includes base guide rail (1) and workstation (11) of setting on base guide rail (1), be provided with center machine body (111), its characterized in that on base guide rail (1): the central machine body (111) is provided with a cable protection device (2), the cable protection device (2) comprises a plurality of mutually hinged drag link units, the drag chain link unit comprises a first side plate (21) and a second side plate (22) which are arranged in parallel, a connecting beam (23) and a clamping beam (24) are arranged between the first side plate (21) and the second side plate (22), the connecting beam (23) is connected with a plurality of clamping plates (231) which are arranged in parallel in a sliding way, the space between every two adjacent clamping plates (231) is used for accommodating the cable to pass through, the connecting beam (23) is provided with a fixing mechanism (3) for fixing the position of the clamping plate (231), one end of the clamping cross beam (24) is hinged to the first side plate (21), and the other end of the clamping cross beam (24) is clamped to the second side plate (22) through a clamping mechanism (4).

2. The numerical control gantry machining center according to claim 1, characterized in that: two ends of the connecting cross beam (23) are detachably connected with the first side plate (21) or the second side plate (22) through bolts (232).

3. The numerical control gantry machining center of claim 2, characterized in that: the connecting beam (23) is provided with a mounting groove (233), the mounting groove (233) is T-shaped, and the fixing mechanism (3) is positioned in the mounting groove (233).

4. The numerical control gantry machining center according to claim 3, characterized in that: fixed establishment (3) are including parallel placement grip block (31) in mounting groove (233) bottom, grip block (31) with mounting groove (233) slide and are connected, be provided with a plurality of compression spring (32) between the bottom of grip block (31) and mounting groove (233), compression spring (32) top is held grip block (31) and is removed to the direction of joint board (231), joint board (231) are provided with sliding block (5) on the lateral wall towards mounting groove (233), sliding block (5) T type sets up, sliding block (5) can be followed the length direction of mounting groove (233) and slided, just grip block (31) can be fixed sliding block (5) in mounting groove (233).

5. The numerical control gantry machining center according to claim 4, characterized in that: the side wall of the sliding block (5) facing the clamping plate (31) is provided with an elastic sheet (51), and the side wall of the clamping plate (31) facing the sliding block (5) is provided with a plurality of clamping grooves (311).

6. The numerical control gantry machining center according to claim 1, characterized in that: the clamping mechanism (4) comprises a clamping groove (41) formed in the clamping cross beam (24), a pin shaft (42) is coaxially arranged in the clamping groove (41) in a penetrating manner, one end of the pin shaft (42) penetrates through the side wall of the clamping cross beam (24) and is connected with the side wall of the clamping cross beam (24) in a sliding manner, a clamping rod (422) is fixedly connected to the end part of the pin shaft (42) penetrating through the clamping cross beam (24) in a perpendicular manner, a mounting plate (43) is fixedly connected to the second side plate (22), a yielding hole (431) for accommodating the clamping rod (422) to penetrate is formed in the mounting plate (43), a circular groove (432) for accommodating the rotary clamping of the clamping rod (422) is formed in the mounting plate (43), the circular groove (432) is communicated with the yielding hole (431) in a mutual manner, a fixing ring (411) is coaxially fixedly connected to the clamping groove (41), and the fixing ring (411) is sleeved on the peripheral surface of the pin shaft (42), the space formed by the fixing ring (411) and the bottom wall of the clamping groove (41) is internally provided with a jacking component used for jacking the pin shaft (42) to move away from the yielding hole (431).

7. The numerical control gantry machining center according to claim 6, characterized in that: the jacking component comprises a sliding ring (44) fixedly connected to the periphery of the pin shaft (42), a jacking spring (45) is arranged between the sliding ring (44) and the bottom of the clamping groove (41), and the jacking spring (45) is sleeved on the pin shaft (42).

8. The numerically controlled gantry machining center according to claim 7, wherein: and a nut (421) is fixedly connected to the end part of the pin shaft (42) departing from the clamping rod (422).

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