Horizontal beam guide rail vertical machining center

Abstract

The application discloses a horizontal beam guide rail vertical machining center, which aims to solve the problems of low machining precision and weak machining rigidity of the head structure of the vertical machining center in the prior art, and simultaneously solves the technical problems of accumulated iron scraps during the working of the vertical machining center, reduced service life of the workbench and machining efficiency, and the vertical machining center comprises a machine base, a beam body is fixedly installed at the rear end of the top of the machine base, the left and right ends of the beam body are fixedly connected with the machine base through columns, a head is installed on the front face of the beam body, and a mounting seat is fixedly installed at the middle of the top of the machine base, compared with the prior vertical machining center, the head structure rigidity can be improved through the design, the machining precision is greatly improved, the cleaning pressure is reduced, the accumulated iron scraps can be automatically cleaned, the service life of the workbench is improved, and the machining efficiency is improved.

Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of front cover production equipment, and particularly relates to a horizontal beam guide rail vertical machining center. BACKGROUND

[0002] The vertical machining center refers to a vertical machining center with a spindle axis perpendicular to a machining table, mainly suitable for machining plate, disc, mold and small shell complex parts, and capable of completing milling, boring, drilling, tapping and thread cutting processes. The vertical machining center is at least three-axis two-linkage, and generally can realize three-axis three-linkage. Some can perform five-axis and six-axis control. The vertical machining center column height is limited, and the machining range of the box type workpiece needs to be reduced, which is a disadvantage of the vertical machining center. However, compared with the corresponding horizontal vertical machining center, the structure is simple, the floor space is small, and the price is low.

[0003] For the vertical machining center, the main structure generally includes a bed, a head, and a worktable. The bed includes a base, a column, and a beam. The beam is installed on the base through the column. The beam is an important component connecting the bed, the head, and the tool magazine. Currently, the design of the head structure of competitors mainly includes a positive hanging structure and a drop structure.

[0004] The positive hanging structure: the beam linear rail is installed on the front surface of the beam, and the head is hung on the front surface of the beam. This structure easily causes the head to tilt forward or backward, affecting the perpendicularity of processing, thereby reducing the processing precision. In addition, the processing rigidity of this structure is weak.

[0005] The drop structure: two linear rails are installed in a drop inclined manner on the inclined surface of the beam, which makes it difficult to level the two linear rails, easily causes asynchronization or jamming problems, and further reduces the processing precision. This structure is more suitable for light cutting.

[0006] At the same time, the center of the head spindle is far away from the beam, and the structural rigidity is weak. The running stability is not good during high-speed processing, and there may even be shaking, which has a very adverse effect on precision machining.

[0007] In summary, the existing vertical machining center head structure has the problems of low processing precision and weak processing rigidity. At the same time, during the operation of the vertical machining center, iron filings are easily accumulated on the bed, especially on the outside of the worktable. Since the worktable needs to be moved frequently during the machining process, if the iron filings are not cleaned in time, not only will it accelerate the wear of the worktable and reduce the service life of the worktable, but also the normal movement of the worktable will be affected due to the accumulation of iron filings, further reducing the processing efficiency. SUMMARY

[0008] (1) Technical problem to be solved

[0009] In view of the deficiencies of the prior art, the purpose of the present application is to provide a horizontal beam guide rail vertical machining center, which aims to solve the problems of low machining precision and weak machining rigidity of the head structure of the vertical machining center in the prior art, and to solve the technical problem of accumulation of iron filings during the operation of the vertical machining center, which reduces the service life and machining efficiency of the workbench.

[0010] (2) Technical scheme

[0011] In order to solve the above technical problems, the present application provides a horizontal beam guide rail vertical machining center, which comprises a machine base, a beam body fixedly installed at the rear end of the top of the machine base, a stand installed between the left and right ends of the beam body and the machine base, a head installed on the front of the beam body, an installation seat fixedly installed at the middle of the top of the machine base, a workbench slidingly connected to the top of the installation seat, a protective cover fixedly installed on the top of the machine base and located on the front and rear sides of the workbench, the left and right sides of the protective cover being fixedly connected to the machine base through quick release mechanisms, the top end of the protective cover being clamped to the workbench through a clamping sleeve, and a cleaning assembly fixedly installed on the left and right sides of the workbench.

[0012] The top of the beam body is fixedly installed with first linear rails at the front and rear ends, the top of the two groups of first linear rails is slidingly connected with a connecting seat, the bottom of the connecting seat and between the two groups of first linear rails is fixedly installed with a first sliding seat, the first sliding seat and the beam body are installed with a first linear motor, the left and right ends of the head are slidingly connected with the connecting seat through second linear rails, the top of the connecting seat is fixedly installed with two groups of air cylinders, and the driving ends of the two groups of air cylinders are fixedly connected with the top of the head.

[0013] When the vertical machining center is used, the base, the beam body and the column made of granite material have the characteristics of good dynamic performance, high stability, good vibration absorption and high thermal stability compared with traditional cast iron material, the first rail is horizontally designed on the beam body, the overall gravity center of the machine head is within the span of the two groups of first rails, the rigidity of the machine head structure is greatly improved by combining the large span design of the two groups of first rails, the support is more stable during high-speed operation, the center of the machining spindle is closer to the beam body by the short throat design of the machine head, the rigidity is better, the stability of operation under high dynamic is greatly improved, when the machine head works, the Z-axis double-cylinder balance design and the reasonable air circuit make the Z-axis move more smoothly, the high dynamic operation performance is improved, thereby the machining precision is greatly improved, when the machine head and the workbench work, the first linear motor and the second linear motor are used to replace the traditional screw transmission mode, the mechanical transmission link is shortened, the mechanical physical wear is reduced, the precision error caused by the transmission link is eliminated, and the machine tool precision and stability are further improved, when machining, the protective cover is installed and fixed on the front and rear sides of the workbench through the quick release mechanism and the sleeve, the protective cover can not only protect the front and rear moving areas of the workbench to avoid accumulation of iron filings, but also protect the components at the bottom of the workbench, improve the service life, reduce the cleaning pressure, and improve the machining efficiency, and the iron filings outside the workbench can be automatically cleaned when the workbench moves during the machining process.

[0014] Preferably, the base, the beam body and the column are all made of granite material, the front and rear ends of the base bottom are both fixedly installed with support seats, the left and right ends of the bottom of the two groups of support seats are both fixedly installed with support feet, the opposite sides of the two groups of columns are both fixedly installed with first wedges, the top of the first wedge is movably installed with a second wedge, the top of the second wedge is in abutment with the bottom of the beam body, the inside of the first wedge is threadedly connected with an adjusting screw, the position corresponding to the adjusting screw of the second wedge is provided with a movable groove, and the outside of the adjusting screw and the side away from the first wedge of the second wedge are threadedly connected with an adjusting nut.

[0015] Further, the left and right ends of the workbench are slidably connected with the mounting seats through the third rails, and the bottom of the workbench and between the two groups of third rails is fixedly installed with a second sliding seat, and the second sliding seat and the mounting seat are installed with a second linear motor.

[0016] Still further, the two ends inside the workbench, the first sliding seat and the second sliding seat are both provided with cooling water channels, and the two groups of cooling water channels are connected.

[0017] Still further, the protective cover is composed of a plurality of U-shaped frames, and the plurality of U-shaped frames are slidably connected with each other.

[0018] Further, the quick release mechanism comprises fixed cylinders fixedly connected to the top of the base and located at the left and right sides of the U-shaped frame, lock inserting columns slidably connected in the fixed cylinders, lock inserting holes formed in positions corresponding to the lock inserting columns on the outer side of the U-shaped frame, springs sleeved on the outer side of the lock inserting columns, and top rings fixedly connected to one end of the outer side of the lock inserting columns close to the lock inserting holes.

[0019] Further, one end of the lock inserting column located on the outer side of the fixed cylinder is fixedly connected with a pull handle.

[0020] Further, the top end of one of the U-shaped frames is fixedly connected with an inserting block, and the inserting block is clamped with the sleeve through the inserting slot.

[0021] Further, the cleaning assembly comprises mounting plates fixedly installed on the left and right sides of the workbench, a first transmission box fixedly installed at the end away from the workbench of the mounting plate, drive wheels and transmission wheels rotatably connected at both ends in the first transmission box, a transmission belt transmissionally connected between the drive wheels and the transmission wheels, a moving wheel fixedly installed at the bottom of the center shaft of the drive wheel and abutting against the surface of the mounting seat, a second transmission box fixedly installed at the end away from the workbench of the first transmission box, a first bevel gear fixedly installed at the bottom of the center shaft of the transmission wheel and located in the second transmission box, a second bevel gear rotatably connected in the second transmission box and engaged with the first bevel gear, cleaning shafts fixedly installed at both ends of the center shaft of the second bevel gear and located on the outer side of the second transmission box, and a plurality of cleaning plates fixedly connected to the outer side of the cleaning shafts.

[0022] Further, the center shaft of the drive wheel is rotatably connected with the second transmission box, and guide rolling grooves are formed at positions corresponding to the moving wheels on the left and right sides of the mounting seat.

[0023] (3) Beneficial effects

[0024] Compared with the prior art, the beneficial effects of the present application are as follows:

[0025] 1. The vertical machining center of the present application is designed by the cooperation of the machine base, beam body, column and machine head, the machine base, beam body and column made of granite material have the characteristics of good dynamic performance, high stability, good vibration absorption and high thermal stability compared with traditional cast iron material, the first line rail is designed horizontally on the beam body, so that the overall center of gravity of the machine head is within the span of the two groups of first line rails, combined with the large span design of the two groups of first line rails, the rigidity of the machine head structure is greatly improved, the support is more stable during high-speed operation, at the same time, the short throat design of the machine head makes the center of the machining spindle closer to the beam body, the rigidity is better, greatly improves the stability of operation under high dynamic, and when the machine head works, the Z-axis double cylinder balance design, the reasonable air circuit makes the Z-axis move more smoothly, improves the high dynamic operation performance, thereby greatly improves the machining precision.

[0026] 2. The vertical machining center of the present application is designed by the cooperation of the protective cover, quick release mechanism and sleeve, the protective cover can protect the front and rear moving area of the workbench to avoid the accumulation of iron filings, not only can protect the components at the bottom of the workbench, improve the service life and reduce the cleaning pressure, thereby improve the machining efficiency, and the multiple U-shaped frames can stretch and shrink with the workbench, ensure that the workbench can move normally, and facilitate the disassembly and assembly of the protective cover for maintenance and maintenance of the components under the workbench.

[0027] 3. The vertical machining center of the present application is designed by the cleaning assembly, which can automatically clean the iron filings outside the workbench under the power of the workbench during the machining process, avoid the accumulation of iron filings to accelerate the wear of the workbench, improve the service life of the workbench and also improve the machining efficiency. BRIEF DESCRIPTION OF DRAWINGS

[0028] Figure 1 It is the overall structure schematic diagram of the present application;

[0029] Figure 2 It is Figure 1 the enlarged view of A;

[0030] Figure 3 It is the top structure schematic diagram of the machine base of the present application;

[0031] Figure 4 It is the structure schematic diagram of the first slide and the second slide of the present application;

[0032] Figure 5 It is Figure 4 the enlarged view of B;

[0033] Figure 6 It is the inside schematic diagram of the column of the present application;

[0034] Figure 7 It is Figure 6 the enlarged view of C;

[0035] Figure 8 The second wedge block of the present application is shown schematically;

[0036] Figure 9 The structure of the connecting seat and the head of the present application is shown schematically;

[0037] Figure 10 The structure of the protective cover of the present application is shown schematically;

[0038] Figure 11 The Figure 7 The enlarged view of C;

[0039] Figure 12 The internal structure of the fixed cylinder of the present application is shown schematically;

[0040] Figure 13 The structure of the cleaning assembly of the present application is shown schematically;

[0041] Figure 14 The internal structure of the first transmission box of the present application is shown schematically;

[0042] Figure 15 The internal structure of the second transmission box of the present application is shown schematically.

[0043] The reference signs in the drawings are: 1, machine base; 101, support seat; 102, support leg; 2, cross beam body; 201, first linear rail; 202, connecting seat; 203, first sliding seat; 204, first linear motor; 205, second linear rail; 206, air cylinder; 3, stand column; 301, first wedge block; 302, second wedge block; 303, adjusting screw; 304, movable groove; 305, adjusting nut; 4, head; 5, mounting seat; 6, workbench; 601, third linear rail; 602, second sliding seat; 603, second linear motor; 604, cooling water channel; 7, protective cover; 701, U-shaped frame; 8, quick release mechanism; 801, fixed cylinder; 802, locking insertion post; 803, locking insertion hole; 804, spring; 805, top ring; 806, pull handle; 807, clamping block; 808, clamping groove; 9, clamping sleeve; 901, clamping block; 902, clamping groove; 10, cleaning assembly; 1001, mounting plate; 1002, first transmission box; 1003, driving wheel; 1004, transmission wheel; 1005, transmission belt; 1006, moving wheel; 1007, second transmission box; 1008, first bevel gear; 1009, second bevel gear; 1010, cleaning rotating shaft; 1011, cleaning plate; 1012, guide rolling groove. DETAILED DESCRIPTION

[0044] The present embodiment is a horizontal cross beam guide rail vertical machining center, the structure of which is shown schematically as Figures 1-15As shown, the vertical machining center comprises a base 1, a cross beam body 2 fixedly installed at the top rear end of the base 1, a vertical column 3 installed between the left and right ends of the cross beam body 2 and the base 1, a machine head 4 installed on the front face of the cross beam body 2, a mounting seat 5 fixedly installed at the middle of the top of the base 1, a workbench 6 slidingly connected to the top of the mounting seat 5, a protective cover 7 fixedly installed on the top of the base 1 and located on the front and rear sides of the workbench 6, the protective cover 7 being fixedly connected to the base 1 through quick release mechanisms 8 on the left and right sides of the protective cover 7, the top end of the protective cover 7 being clamped to the workbench 6 through a clamping sleeve 9, and cleaning assemblies 10 fixedly installed on the left and right sides of the workbench 6.

[0045] First, first linear rails 201 are fixedly installed at the top front and rear ends of the cross beam body 2, a connecting seat 202 is slidingly connected to the top of the two groups of first linear rails 201, a first sliding seat 203 is fixedly installed at the bottom of the connecting seat 202 and located between the two groups of first linear rails 201, a first linear motor 204 is installed between the first sliding seat 203 and the cross beam body 2, the left and right ends of the machine head 4 are slidingly connected to the connecting seat 202 through second linear rails 205, two groups of air cylinders 206 are fixedly installed on the top of the connecting seat 202, the driving ends of the two groups of air cylinders 206 are fixedly connected to the top of the machine head 4, the first linear rails 201 on the cross beam body 2 are horizontally designed, so that the overall center of gravity of the machine head 4 is within the span of the two groups of first linear rails 201, the large-span design of the two groups of first linear rails 201 greatly improves the structural rigidity of the machine head 4, and the machine head 4 is more stable during high-speed operation, the short-throat design of the machine head 4 makes the center of the machining spindle closer to the cross beam body 2, and the rigidity is better, which greatly improves the stability of operation under high dynamics, and when the machine head 4 is working, the Z-axis double air cylinders 206 are balanced designed, and the reasonable air circuit makes the Z-axis move more smoothly, which improves the high dynamic operation performance, thereby greatly improving the machining precision.

[0046] Further, the base 1, the beam body 2 and the column 3 are all made of granite material, the front and rear ends of the bottom of the base 1 are fixedly provided with support seats 101, the left and right ends of the bottom of the two groups of support seats 101 are fixedly provided with support feet 102, the opposite sides of the two groups of columns 3 are fixedly provided with first wedge blocks 301, the top of the first wedge block 301 is movably provided with a second wedge block 302, and the top of the second wedge block 302 is in abutment with the bottom of the beam body 2, the inside of the first wedge block 301 is threadedly connected with an adjusting screw 303, the position corresponding to the adjusting screw 303 of the second wedge block 302 is provided with a movable groove 304, and the outside of the adjusting screw 303 and on the side away from the first wedge block 301 of the second wedge block 302 is threadedly connected with an adjusting nut 305, the base 1, the beam body 2 and the column 3 made of granite material have the characteristics of good dynamic performance, high stability, good vibration absorption and high thermal stability compared with traditional cast iron material, the support seat 101 provides stable support for the base 1, the height of the support foot 102 is adjustable, the bottom of the support seat 101 is supported and raised, and the adjusting nut 305 on the outside of the adjusting screw 303 is rotated to push the second wedge block 302, so that the second wedge block 302 slides on the first wedge block 301 to lift the beam body 2, and the height of the beam body 2 and the left and right columns 3 is adjusted to be equal to the height of the common plane for convenient assembly.

[0047] Then, the left and right ends of the workbench 6 are slidably connected with the mounting seat 5 through the third linear rails 601, and the bottom of the workbench 6 and between the two groups of third linear rails 601 is fixedly provided with a second sliding seat 602, and the second linear motor 603 is installed between the second sliding seat 602 and the mounting seat 5, when the head 4 and the workbench 6 work, the first linear motor 204 and the second linear motor 603 are driven in a driving mode, instead of the traditional screw driving mode, shortens the intermediate mechanical transmission link, reduces the mechanical and physical wear, eliminates the precision error caused by the transmission link, and further improves the machine tool precision and stability.

[0048] Further, the workbench 6, the first sliding seat 203 and the second sliding seat 602 are internally provided with cooling water channels 604 at both ends, and the two groups of cooling water channels 604 are connected in communication, and the workbench 6, the first sliding seat 203 and the second sliding seat 602 are connected with independent variable frequency water coolers through the cooling water channels 604, and precise cooling water is introduced for cooling during processing, and the two groups of cooling water channels 604 are respectively for water inlet and water outlet, which can minimize the influence of heating during processing.

[0049] The protective cover 7 is composed of multiple groups of U-shaped frames 701, which are slidingly connected with each other. When machining, the protective cover 7 is installed and fixed on the front and rear sides of the workbench 6. The protective cover 7 can protect the front and rear moving areas of the workbench 6 from accumulation of iron filings. The protective cover 7 can not only protect the components at the bottom of the workbench 6, but also improve the service life and reduce the cleaning pressure, thereby improving the machining efficiency. In addition, the multiple groups of U-shaped frames 701 can stretch and shrink with the movement of the workbench 6, thereby ensuring the normal movement of the workbench 6.

[0050] Further, the quick release mechanism 8 includes a fixed cylinder 801 fixedly connected to the top of the base 1 and located on the left and right sides of the U-shaped frame 701. A locking plug 802 is slidingly connected in the fixed cylinder 801. A locking hole 803 is formed in the outer side of the U-shaped frame 701 corresponding to the locking plug 802. A spring 804 is sleeved on the outer side of the locking plug 802. A top ring 805 is fixedly connected to the end of the locking plug 802 close to the locking hole 803. When the protective cover 7 is installed on the front and rear sides of the workbench 6, the top ring 805 is pushed against by the spring 804, thereby continuously pushing the locking plug 802 out of the fixed cylinder 801. The locking plug 802 is inserted into the locking hole 803 on the outer side of the U-shaped frame 701, thereby fixing the protective cover 7 and ensuring its protection effect.

[0051] Further, one end of the locking plug 802 located on the outer side of the fixed cylinder 801 is fixedly connected with a pull handle 806. The outer side of the top ring 805 is fixedly connected with a clamping block 807. A clamping groove 808 is formed in the outer side of the fixed cylinder 801 corresponding to the clamping block 807. When the components under the workbench 6 need to be maintained and repaired, the locking plug 802 can be pulled and rotated by the pull handle 806, so that the clamping block 807 is clamped into the clamping groove 808 to fix the locking plug 802. Thus, the protective cover 7 can be quickly fixed, thereby facilitating the disassembly and assembly of the protective cover 7 and the maintenance and repair of the components under the workbench 6.

[0052] Further, the top end of one group of U-shaped frames 701 is fixedly connected with an insertion block 901. The insertion block 901 is clamped with a sleeve 9 through an insertion groove 902. When the protective cover 7 is installed and fixed, the insertion block 901 is first inserted into the insertion groove 902, thereby clamping one end of the protective cover 7 to the outer side of the workbench 6. The other end of the protective cover 7 is fixed by the quick release mechanism 8, thereby enabling the protective cover 7 to stretch and shrink with the movement of the workbench 6.

[0053] Secondly, the cleaning assembly 10 comprises mounting plates 1001 fixedly installed on the left and right sides of the workbench 6, a first transmission box 1002 fixedly installed at the end away from the workbench 6 of the mounting plate 1001, a driving wheel 1003 and a transmission wheel 1004 rotatably connected at both ends in the first transmission box 1002, the driving wheel 1003 and the transmission wheel 1004 being drivingly connected through a transmission belt 1005, a moving wheel 1006 fixedly installed at the bottom end of the central shaft of the driving wheel 1003 and abutting against the surface of the mounting seat 5, a second transmission box 1007 fixedly installed at the end away from the workbench 6 of the first transmission box 1002, a first bevel gear 1008 fixedly installed at the bottom end of the central shaft of the transmission wheel 1004 and located inside the second transmission box 1007, a second bevel gear 1009 rotatably connected inside the second transmission box 1007 and engaged with the first bevel gear 1008, cleaning rotating shafts 1010 fixedly installed at both ends of the central shaft of the second bevel gear 1009 and located outside the second transmission box 1007, and a plurality of cleaning plates 1011 fixedly connected outside the cleaning rotating shafts 1010. During the machining process, the workbench 6 moves to drive the moving wheel 1006 to roll outside the mounting seat 5, thereby driving the driving wheel 1003 to rotate, driving the transmission wheel 1004 to rotate under the transmission of the transmission belt 1005, and then driving the two cleaning rotating shafts 1010 to rotate under the transmission of the first bevel gear 1008 and the second bevel gear 1009. The plurality of cleaning plates 1011 are driven by the cleaning rotating shafts 1010 to shovel the iron filings outside the workbench 6, thereby automatically cleaning the iron filings outside the workbench 6 under the power of the workbench 6, avoiding the accumulation of iron filings to accelerate the wear of the workbench 6, improving the service life of the workbench 6 and the machining efficiency.

[0054] Finally, the central shaft of the driving wheel 1003 is rotatably connected with the second transmission box 1007, and a guide rolling groove 1012 is formed at a position corresponding to the moving wheel 1006 on the left and right sides of the mounting seat 5. The moving wheel 1006 rolls outside the mounting seat 5 when located in the guide rolling groove 1012, thereby ensuring the rolling stability.

[0055] When the vertical machining center of the technical scheme is used, the base 1, the beam body 2 and the column 3 made of granite material have the characteristics of good dynamic performance, high stability, good vibration absorption and high thermal stability compared with the traditional cast iron material, the first line rails 201 on the beam body 2 are horizontally designed, so that the overall gravity center of the head 4 is within the span of the two groups of first line rails 201, combined with the large-span design of the two groups of first line rails 201, the structural rigidity of the head 4 is greatly improved, and the support is more stable during high-speed operation, at the same time, the short-throat design of the head 4 makes the center of the machining spindle closer to the beam body 2, and the rigidity is better, which greatly improves the stability of operation under high dynamic, and when the head 4 works, the Z-axis double-cylinder 206 balance design, the reasonable air circuit makes the Z-axis move more smoothly, and improves the high dynamic operation performance, thereby greatly improving the machining precision, when the head 4 and the workbench 6 work, the driving mode of the first linear motor 204 and the second linear motor 603 is adopted, which replaces the traditional screw driving mode, shortens the intermediate mechanical transmission link, reduces the mechanical physical wear and tear, eliminates the precision error caused by the transmission link, and further improves the machine tool precision and stability, when machining, the protective cover 7 is installed and fixed on the front and rear sides of the workbench 6 through the quick release mechanism 8 and the sleeve 9, through the protective cover 7, not only the front and rear moving areas of the workbench 6 can be protected to avoid the accumulation of iron filings, but also the components at the bottom of the workbench 6 can be protected, which improves the service life and reduces the cleaning pressure, thereby improving the machining efficiency, at the same time, during the machining process, the workbench 6 can automatically clean the iron filings outside the workbench 6 when moving, the whole operation process is simple and convenient, compared with the existing vertical machining center, the head 4 structural rigidity can be improved through the design, the machining precision is greatly improved, the cleaning pressure is reduced, the accumulated iron filings can be automatically cleaned, the service life of the workbench 6 is improved, and the machining efficiency is also improved.

[0056] The above embodiments are the preferred implementation of the present application, in addition to this, the present application can be implemented in other ways, without departing from the concept of the technical scheme, any obvious replacement within the protection scope of the present application.

Claims

1. A horizontal beam guide rail vertical machining center, comprising a machine base (1); characterized in that, A beam body (2) is fixedly installed at the rear end of the top of the machine base (1), and columns (3) are installed between the left and right ends of the beam body (2) and the machine base (1). A machine head (4) is installed on the front of the beam body (2). A mounting seat (5) is fixedly installed in the middle of the top of the machine base (1), and a workbench (6) is slidably connected to the top of the mounting seat (5). A protective cover (7) is fixedly installed on the top of the machine base (1) and on the front and rear sides of the workbench (6). The left and right sides of the protective cover (7) are fixedly connected to the machine base (1) through a quick-release mechanism (8), and the top of the protective cover (7) is clamped to the workbench (6) through a clamping sleeve (9). Cleaning components (10) are fixedly installed on the left and right sides of the workbench (6); The front and rear ends of the top of the crossbeam body (2) are fixedly installed with first linear rails (201), the tops of the two groups of the first linear rails (201) are slidably connected to a connecting seat (202), the bottom of the connecting seat (202) and located between the two groups of the first linear rails (201) are fixedly installed with a first slide seat (203), a first linear motor (204) is installed between the first slide seat (203) and the crossbeam body (2), the left and right ends of the machine head (4) are slidably connected to the connecting seat (202) through the second linear rails (205), two groups of cylinders (206) are fixedly installed on the top of the connecting seat (202), and the driving ends of the two groups of cylinders (206) are fixedly connected to the top of the machine head (4); The cleaning assembly (10) comprises a mounting plate (1001) fixedly mounted on the left and right sides of the workbench (6); a first transmission box (1002) is fixedly mounted on one end of the mounting plate (1001) away from the workbench (6); a driving wheel (1003) and a transmission wheel (1004) are rotatably connected at both ends of the first transmission box (1002); the driving wheel (1003) and the transmission wheel (1004) are connected to each other via a transmission belt (1005); a moving wheel (1006) is fixedly mounted on the bottom end of the central axis of the driving wheel (1003), and the moving wheel (1006) is in contact with the surface of the mounting seat (5); the first transmission box (10 02) A second transmission box (1007) is fixedly installed at one end away from the workbench (6), a first bevel gear (1008) is fixedly installed at the bottom end of the central axis of the transmission wheel (1004) and located inside the second transmission box (1007), a second bevel gear (1009) is rotatably connected inside the second transmission box (1007), and the second bevel gear (1009) is meshed with the first bevel gear (1008), a cleaning shaft (1010) is fixedly installed at both ends of the central axis of the second bevel gear (1009) and located outside the second transmission box (1007), and a plurality of cleaning plates (1011) are fixedly connected to the outside of the cleaning shaft (1010).

2. A horizontal beam guide rail vertical machining center according to claim 1, characterized in that: The machine base (1), the crossbeam body (2) and the column (3) are all made of granite material. The front and rear ends of the bottom of the machine base (1) are fixedly mounted with support bases (101). The left and right ends of the bottoms of the two groups of support bases (101) are fixedly mounted with support feet (102). The opposite sides of the two groups of columns (3) are fixedly mounted with first wedge blocks (301). The top of the first wedge blocks (301) is movably mounted with second wedge blocks (302). The top of the second wedge-shaped block (302) abuts against the bottom of the crossbeam body (2); the internal thread of the first wedge-shaped block (301) is connected to an adjusting screw (303); a movable groove (304) is provided at a position of the second wedge-shaped block (302) corresponding to the adjusting screw (303); and an adjusting nut (305) is threadedly connected to the outside of the adjusting screw (303) and on a side of the second wedge-shaped block (302) away from the first wedge-shaped block (301).

3. A horizontal beam guide rail vertical machining center according to claim 1, characterized in that: The left and right ends of the workbench (6) are slidably connected to the mounting seat (5) through third linear rails (601), a second slide (602) is fixedly installed at the bottom of the workbench (6) and between the two sets of third linear rails (601), and a second linear motor (603) is installed between the second slide (602) and the mounting seat (5).

4. A horizontal beam guide rail vertical machining center according to claim 3, characterized in that: Cooling water channels (604) are provided at both ends of the workbench (6), the first slide (203) and the second slide (602), and the two groups of cooling water channels (604) are connected.

5. The horizontal beam guide rail vertical machining center according to claim 1, characterized in that: The protective cover (7) is composed of multiple groups of U-shaped frames (701), and the multiple groups of U-shaped frames (701) are slidably connected to each other.

6. A horizontal beam guide rail vertical machining center according to claim 5, characterized in that: The quick-release mechanism (8) comprises a fixed cylinder (801) fixedly connected to the top of the machine base (1) and located on the left and right sides of the U-shaped frame (701); a locking pin (802) is slidably connected to the interior of the fixed cylinder (801); a locking socket (803) is provided at a position corresponding to the locking pin (802) on the outside of the U-shaped frame (701); a spring (804) is sleeved on the outside of the locking pin (802); and a top ring (805) is fixedly connected to the outside of the locking pin (802) and at one end of the spring (804) close to the locking socket (803).

7. A horizontal beam guide rail vertical machining center according to claim 6, characterized in that: One end of the locking pin (802) located outside the fixed cylinder (801) is fixedly connected to a pull handle (806), the outside of the top ring (805) is fixedly connected to a clamping block (807), and a clamping groove (808) is provided at a position on the outside of the fixed cylinder (801) corresponding to the clamping block (807).

8. The horizontal beam guide rail vertical machining center according to claim 5, characterized in that: The top end of one group of the U-shaped frames (701) is fixedly connected to an insert block (901), and the insert block (901) is engaged with the clamping sleeve (9) via a slot (902).

9. The horizontal beam guide rail vertical machining center according to claim 1, characterized in that: The central axis of the driving wheel (1003) is rotatably connected to the second transmission box (1007), and guide roller grooves (1012) are provided at positions on both the left and right sides of the mounting seat (5) corresponding to the moving wheel (1006).

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