A gantry truss for laser cutting machine

Abstract

The present invention discloses a gantry truss for a laser cutting machine, and relates to the technical field of gantry trusses, including a U-shaped base and a shock-absorbing positioning mechanism, wherein the top wall of the U-shaped base is provided with two guide rail mechanisms and two shock-absorbing positioning mechanisms distributed front and back, a gantry truss mechanism is provided on the slide rail, a spring rod group is provided on the sliding member 1 and the sliding member 2, and a buffer shock-absorbing mechanism is provided on the gantry truss mechanism symmetrically front and back, and symmetrically up and down on the sliding member 1, and a dust-proof balancing mechanism is provided on the gantry truss mechanism. The present invention performs shock absorption during the operation of the laser cutting machine by cooperating with the guide rail mechanism and the spring rod group, thereby enhancing the stability of the laser cutting machine during the operation, performs shock absorption and positioning when the laser cutting machine stops operating by cooperating with the shock-absorbing positioning mechanism and the buffer shock-absorbing mechanism, and improves the stability of the overall structure while performing sufficient dust suction operations by cooperating with the guide rail mechanism and the dust-proof balancing mechanism.

Description

Technical Field

[0001] The invention relates to the technical field of gantry trusses, and in particular to a gantry truss for a laser cutting machine. Background Art

[0002] Laser cutting machine is a high-precision, high-speed cutting tool. The gantry truss of the laser cutting machine refers to the gantry-type structural load-bearing equipment used in the laser cutting machine. It is mainly used to support and move the laser cutting head. The gantry truss is installed with a guide rail system to guide the laser cutting direction. The gantry truss of the laser cutting machine is usually made of high-strength steel or aluminum alloy to ensure its strength and lightness, and to ensure cutting quality and efficiency.

[0003] During the mobile cutting process, the current laser cutting machine drives the laser cutting machine to move in the X-axis direction by moving the gantry truss on the guide rail system. At the same time, the laser cutting machine moves in the Y-axis and Z-axis directions on the gantry truss. However, vibration will be generated during the movement of the gantry truss and the laser cutting machine. The vibration will cause the cutting trajectory to deviate from the predetermined path and reduce the cutting accuracy. Secondly, there is an inertial impact force when the laser cutting machine moves to the end of the guide rail. Long-term vibration and the collision of inertial impact force will accelerate the wear of the mechanical parts at the end of the guide rail and shorten the service life of the equipment. Furthermore, during the movement of the laser cutting machine, the displacement of the laser cutting machine will cause uneven weight distribution of each part, and the vibration will be more obvious.

[0004] Therefore, in order to improve cutting accuracy, the present invention provides a gantry truss for a laser cutting machine. Summary of the invention

[0005] The purpose of the present invention is to solve the problems existing in the prior art and to propose a gantry truss for a laser cutting machine.

[0006] In order to achieve the above-mentioned purpose, the present invention adopts the following technical scheme: a gantry truss of a laser cutting machine, comprising a U-shaped base and a shock-absorbing positioning mechanism, the top wall of the U-shaped base is provided with two guide rail mechanisms and two shock-absorbing positioning mechanisms distributed front and back, the guide rail mechanism comprises a slide rail, and the top wall of the U-shaped base is fixedly connected with the slide rail; the shock-absorbing positioning mechanism comprises two front and rear support slides, and the top wall of the U-shaped base is slidably connected with the support slide front and back, the two support slides are symmetrically distributed with the slide rail as the center, a bidirectional hydraulic rod is installed between the two sides of the support slides that are close to each other, and the middle of the bidirectional hydraulic rod is fixed The end is fixedly connected to the U-shaped base, and a plurality of positioning blocks and a plurality of adjusting blocks are evenly arranged and fixedly connected in the middle of the outer wall on one side where the two supporting slides are close to each other, and the positioning blocks and the adjusting blocks correspond to each other one by one up and down; a gantry truss mechanism is commonly arranged on the slide rail, and a sliding member 1 is connected to the gantry truss mechanism for front-to-back sliding, and a sliding member 2 is connected to the track opened on the right side wall of the sliding member 1 for up-and-down sliding, and a spring rod group is arranged on both the sliding member 1 and the sliding member 2, and a buffer shock-absorbing mechanism is symmetrically arranged on the gantry truss mechanism front-to-back and symmetrically arranged on the sliding member 1 up and down, and a dust-proof balancing mechanism is arranged on the gantry truss mechanism.

[0007] In the above-mentioned gantry truss of a laser cutting machine, a sliding cavity is opened inside the slide rail, and the bottom wall of the sliding cavity of the slide rail is connected to a V-shaped shock-absorbing plate through a spring, and the front and rear side walls of the slide rail are evenly opened with a plurality of adjustment ports connected to the sliding cavity, and the adjustment ports correspond to the adjustment blocks one by one, and the top wall of the adjustment block is inclined near the V-shaped shock-absorbing plate, and the inclined top wall of the adjustment block is adapted to the bottom wall of the V-shaped shock-absorbing plate, and the springs connecting the adjustment block and the V-shaped shock-absorbing plate are staggered.

[0008] In the above-mentioned gantry truss of a laser cutting machine, the gantry truss mechanism includes a truss body, on which the truss body is slidably connected together on the two slide rails, and the truss body is composed of an H-shaped seat and an inverted "mountain"-shaped seat connected to the slide rail fixed on the bottom wall of the H-shaped seat, an inverted U-shaped frame is fixedly connected to the top wall of the H-shaped seat of the truss body, and a cross plate is fixedly connected to the front and rear inner walls of the inverted U-shaped frame, and the front and rear side walls of the H-shaped seat of the truss body are provided with positioning grooves corresponding to the positioning blocks.

[0009] In the above-mentioned gantry truss of a laser cutting machine, the sliding cavity of the slide rail is adapted to the inverted "mountain" shaped seat of the truss body, the middle bottom wall of the inverted "mountain" shaped seat of the truss body is connected by two inclined surfaces in the shape of an arrow, and the middle bottom wall of the inverted "mountain" shaped seat of the truss body is adapted to the top wall of the V-shaped shock-absorbing plate, one of the spring rod groups is hinged to the middle top wall of the H-shaped seat of the truss body and the left side wall of sliding member one, and the other spring rod group is hinged to the front and rear side walls of sliding member one and sliding member two.

[0010] In the above-mentioned laser cutting machine gantry truss, the buffer shock-absorbing mechanism includes an adjustment groove, and the track end opened on the right side wall of the H-shaped seat of the truss body is symmetrically provided with adjustment grooves in the front and back, and the track end opened by the sliding member is symmetrically provided with adjustment grooves in the upper and lower directions. The inner wall of the adjustment groove is connected to a rectangular shock-absorbing member through a spring, and the rectangular shock-absorbing member is provided with symmetrically distributed V-shaped adjustment tracks.

[0011] In the above-mentioned gantry truss of a laser cutting machine, a push column is fixedly connected to the outer wall of the rectangular shock-absorbing member on the side away from the spring, and the end of the push column away from the rectangular shock-absorbing member is respectively arranged in the track end portion opened by the truss body and the track end portion opened by the sliding member, and a T-shaped buffer frame connected to the inner wall of the adjustment groove through a spring slides on the V-shaped adjustment track.

[0012] In the above-mentioned gantry truss of a laser cutting machine, the dust-proof balancing mechanism includes a dust collecting box, and the dust collecting box is connected to the track opened on the left side wall of the H-shaped seat of the truss body for forward and backward sliding. The dust collecting box is provided with a dust suction assembly, and the dust suction assembly includes a dust suction pipe. The inlet and outlet on the dust collecting box are connected to the dust suction pipe, and the end of the dust suction pipe is connected to four dust suction heads distributed on the left and right side walls of the inverted "mountain" shaped seat of the truss body, and the outer wall of the dust suction pipe is sleeved with an arc-shaped fixing part fixed to the side wall of the H-shaped seat of the truss body.

[0013] In the above-mentioned gantry truss of a laser cutting machine, the front and rear inner walls of the slide rail are staggered and fixedly connected with multiple driving protrusions, and the front and rear side walls of the middle part of the inverted "mountain" shaped seat of the truss body are rotatably connected with a driving member through a torsion spring rod, and the driving member is composed of a frame-shaped member sleeved on the outside of the dust collector head and two V-shaped members connected to the outer wall of the frame-shaped member with openings facing the truss body, and the V-shaped member of the driving member is adapted to the driving protrusions.

[0014] In the above-mentioned gantry truss of a laser cutting machine, a stable balancing mechanism is arranged on the dust collecting box, the top wall of the dust collecting box is hinged with a spring rod 1, the top wall of the sliding member 1 is hinged with a spring rod 2, and the top walls of the spring rod 1 and the spring rod 2 are both fixedly connected to one end of the cam connecting member, the other end of the cam connecting member is rotatably connected to one end of the connecting rod, and the other ends of the two connecting rods are rotatably connected to the left and right side walls of the balancing member respectively.

[0015] In the above-mentioned laser cutting machine gantry truss, the two cam connecting parts are symmetrically distributed with the balancing part as the center, the bottom wall of the horizontal plate is fixedly connected with the balancing seat, and the balancing part is slidably connected to the inside of the balancing seat up and down, and the two cam connecting parts are rotatably connected to the left and right side walls in the middle of the inverted U-shaped frame.

[0016] Compared with the existing technology, the advantages of the present invention are: 1. The guide rail mechanism and the spring rod group are used to cooperate with each other to reduce shock during the operation of the laser cutting machine, thereby enhancing the stability of the laser cutting machine during operation. The vibration generated by the truss body is transmitted to the bottom spring through the V-shaped shock-absorbing plate, and the spring elastic force is used for buffering and shock reduction. The truss body, sliding member 1 and the spring rod group always maintain a triangular structure with the sliding member 1, sliding member 2 and the spring rod group, thereby improving the stability of the structure and reducing the vibration during the cutting operation of the laser cutting machine.

[0017] 2. The shock absorption and positioning mechanism and the buffer shock absorption mechanism are coordinated to realize the shock absorption and positioning of the laser cutting machine during operation. When the truss body stops moving, the adjustment block pushes the V-shaped shock absorption plate upward to be rigidly connected with the inverted "mountain" shaped seat of the truss body, and cooperates with the positioning block to lock the position of the truss body; when the sliding member 1 moves forward and backward and the sliding member 2 moves up and down to the end position of the track, the end of the push column is squeezed and the force is released and buffered by springs in multiple directions, thereby reducing the inertial impact force when the laser cutting machine moves to the end position of the track, which helps to extend the service life of the truss body and the track on the sliding member 1 while reducing vibration.

[0018] 3. Through the coordination of the guide rail mechanism and the dustproof balancing mechanism, the overall stability of the structure can be improved while performing sufficient dust collection operations. When the driving member moves to contact the driving protrusion, the driving protrusion drives the frame of the driving member to move the flexible dust collection head to slightly deflect the dust collection range, so as to more fully clean the inside of the slide rail and prevent dust and cutting debris from clogging the slide rail and affecting the smoothness of sliding; through the adjustment of the stable balancing mechanism, the stability of the overall structure of the truss body can be improved when the sliding member drives the laser cutting machine to move back and forth. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The specific embodiments of the present invention are further described in detail below in conjunction with the accompanying drawings, wherein: Figure 1 This is a schematic diagram of the overall structure of a gantry truss for a laser cutting machine proposed in the present invention.

[0020] Figure 2 This is a partial structural schematic diagram of a gantry truss for a laser cutting machine proposed in the present invention.

[0021] Figure 3 The present invention is a schematic structural diagram of a shock-absorbing and positioning mechanism for a gantry truss of a laser cutting machine.

[0022] Figure 4 This is a schematic cross-sectional structure diagram of a guide rail mechanism of a gantry truss of a laser cutting machine proposed in the present invention.

[0023] Figure 5 The present invention is a schematic diagram of the cross-sectional structure of a guide rail mechanism and a shock-absorbing positioning mechanism of a gantry truss for a laser cutting machine.

[0024] Figure 6 A schematic structural diagram of a gantry truss mechanism of a laser cutting machine gantry truss proposed by the present invention.

[0025] Figure 7 The present invention is a schematic structural diagram of a spring rod group of a gantry truss for a laser cutting machine.

[0026] Figure 8 The present invention is a schematic structural diagram of a buffering and shock absorbing mechanism of a gantry truss of a laser cutting machine.

[0027] Fig. 9 A partial structural schematic diagram of a dust-proof balancing mechanism of a gantry truss of a laser cutting machine proposed in the present invention.

[0028] Fig.10 This is another partial structural schematic diagram of the dust-proof balancing mechanism of the gantry truss of a laser cutting machine proposed by the present invention.

[0029] Fig.11 A partial structural schematic diagram of a dust collection assembly of a gantry truss of a laser cutting machine proposed in the present invention.

[0030] Fig.12 This is a schematic structural diagram of a stable balancing mechanism of a gantry truss for a laser cutting machine proposed by the present invention.

[0031] In the figure: 1. U-shaped base; 2. Guide rail mechanism; 21. Slide rail; 22. V-shaped shock-absorbing plate; 23. Adjustment port; 3. Shock-absorbing positioning mechanism; 31. Support slide; 32. Bidirectional hydraulic rod; 33. Positioning block; 34. Adjustment block; 4. Gantry truss mechanism; 41. Truss body; 42. Cross plate; 43. Inverted U-shaped frame; 44. Positioning slot; 5. Sliding member 1; 6. Sliding member 2; 7. Spring rod group; 8. Buffer shock-absorbing mechanism; 81. Adjustment slot; 82. Push column ;83. Rectangular shock-absorbing member;84. V-shaped adjustment track;85. T-shaped buffer frame;9. Dust-proof balancing mechanism;91. Dust collecting box;92. Dust suction assembly;921. Dust suction duct;922. Arc-shaped fixing member;923. Dust suction head;924. Driving member;925. Driving protrusion;93. Stable balancing mechanism;931. Spring rod one;932. Spring rod two;933. Cam connecting member;934. Connecting rod;935. Balancing member;936. Balancing seat. DETAILED DESCRIPTION

[0032] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0033] Reference Figure 1 to Figure 2 A gantry truss for a laser cutting machine comprises a U-shaped base 1 and a shock-absorbing positioning mechanism 3. The top wall of the U-shaped base 1 is provided with two guide rail mechanisms 2 and two shock-absorbing positioning mechanisms 3 distributed front and back. The guide rail mechanism 2 comprises a slide rail 21. The top wall of the U-shaped base 1 is fixedly connected with the slide rail 21. A gantry truss mechanism 4 is commonly provided on the slide rail 21. A sliding member 1 5 is slidably connected to the gantry truss mechanism 4 front and back. A sliding member 2 6 is slidably connected to the track opened on the right side wall of the sliding member 1 5 up and down. A spring rod group 7 is provided on the sliding member 1 5 and the sliding member 2 6. Buffer shock-absorbing mechanisms 8 are symmetrically provided on the gantry truss mechanism 4 front and back and symmetrically provided on the sliding member 1 5 up and down. A dust-proof balancing mechanism 9 is provided on the gantry truss mechanism 4.

[0034] The laser cutting machine is arranged on the sliding part 2 6, the U-shaped base 1 provides support for the guide rail mechanism 2 and the shock absorbing positioning mechanism 3, the guide rail mechanism 2 provides support for the gantry truss mechanism 4, the gantry truss mechanism 4 moves left and right on the guide rail mechanism 2, the sliding part 1 5 moves forward and backward on the gantry truss mechanism 4, and the sliding part 2 6 moves up and down on the sliding part 1 5. The laser cutting machine is driven to move to a suitable position through movement in three directions, which is convenient for the laser cutting machine to move and process comprehensively; the shock absorbing positioning mechanism 3 is adjusted to lock the gantry truss mechanism 4, and elastic shock absorption is performed at the same time. The gantry truss mechanism 4, the sliding part 1 5 and the sliding part 2 6 are all driven by an existing driving source (such as an electric slider).

[0035] The spring rod group 7 helps the sliding member 1 5 and the sliding member 2 6 to maintain stability and reduce vibration when moving; when the sliding member 1 5 moves forward and backward to the track end on the truss body 41, and the sliding member 2 6 moves up and down to the track end on the sliding member 1 5, force release in multiple directions is performed to facilitate effective buffering; by adjusting the dustproof balancing mechanism 9, dust collection operations are performed while the gantry truss mechanism 4 moves, and at the same time, the stability of the overall structure when the sliding member 5 moves is improved.

[0036] Reference Figures 3 to 5The shock-absorbing positioning mechanism 3 includes a supporting slide 31. The top wall of the U-shaped base 1 is slidably connected to two front and rear supporting slides 31. The two supporting slides 31 are symmetrically distributed with the slide rail 21 as the center. A bidirectional hydraulic rod 32 is installed between the two adjacent sides of the two supporting slides 31. The middle fixed end of the bidirectional hydraulic rod 32 is fixedly connected to the U-shaped base 1. A plurality of positioning blocks 33 and a plurality of adjusting blocks 34 are evenly arranged and fixedly connected in the middle of the outer wall of the adjacent side of the two supporting slides 31. The positioning blocks 33 and the adjusting blocks 34 correspond one to one up and down.

[0037] Reference Figure 2 , Figure 4 and Figure 5 A sliding cavity is opened inside the slide rail 21, and the bottom wall of the sliding cavity of the slide rail 21 is connected to a V-shaped shock-absorbing plate 22 through a spring. A plurality of adjustment openings 23 connected to the sliding cavity are evenly opened on the front and rear side walls of the slide rail 21. The adjustment openings 23 correspond to the adjustment blocks 34 one by one. The top wall of the adjustment block 34 is inclined near the V-shaped shock-absorbing plate 22. The inclined top wall of the adjustment block 34 is adapted to the bottom wall of the V-shaped shock-absorbing plate 22, and the springs connecting the adjustment block 34 and the V-shaped shock-absorbing plate 22 are staggered.

[0038] Reference Figure 2 , Figure 5 and Figure 6 The gantry truss mechanism 4 includes a truss body 41, on which the truss body 41 is slidably connected together with the two slide rails 21, and the truss body 41 is composed of an H-shaped seat and two inverted "mountain"-shaped seats connected to the slide rails 21 fixed by the bottom wall of the H-shaped seat, an inverted U-shaped frame 43 is fixedly connected to the top wall of the H-shaped seat of the truss body 41, and a cross plate 42 is fixedly connected to the front and rear inner walls of the inverted U-shaped frame 43, and the front and rear side walls of the H-shaped seat of the truss body 41 are both provided with positioning grooves 44 corresponding to the positioning blocks 33; the sliding cavity of the slide rail 21 is adapted to the inverted "mountain"-shaped seat of the truss body 41, and the middle bottom wall of the inverted "mountain"-shaped seat of the truss body 41 is connected by two inclined surfaces in an arrow shape, and the middle bottom wall of the inverted "mountain"-shaped seat of the truss body 41 is adapted to the top wall of the V-shaped shock-absorbing plate 22.

[0039] The inverted "mountain" shaped seat of the truss body 41 slides left and right in the sliding cavity of the slide rail 21, driving the laser cutting machine to a suitable position for cutting operations. During the movement, the top wall of the V-shaped shock-absorbing plate 22 is attached to the arrow-shaped bottom wall in the middle of the inverted "mountain" shaped seat of the truss body 41. The vibration generated by the truss body 41 is transmitted to the bottom spring through the V-shaped shock-absorbing plate 22, and the spring is used for buffering and shock absorption. In order to reduce friction during movement, a ball bearing can be set on the top wall of the V-shaped shock-absorbing plate 22.

[0040] When the truss body 41 stops moving, the front and rear output ends of the two-way hydraulic rod 32 drive the supporting slide 31 to slide on the top wall of the U-shaped base 1, and the supporting slide 31 drives the positioning block 33 and the adjusting block 34 to approach the slide rail 21, and the adjusting block 34 passes through the adjusting port 23 until it is close to the bottom wall of the V-shaped shock-absorbing plate 22, and the adjusting block 34 continues to move to push the V-shaped shock-absorbing plate 22 to move up and be close to the inverted "mountain" shaped seat of the truss body 41. At the same time, the positioning block 33 engages with the corresponding positioning groove 44 on the truss body 41 to lock the position of the truss body 41 to increase the stability of the truss body 41 when it stops and the laser cutting machine is operating.

[0041] Reference Figure 7 One spring rod group 7 is hinged to the middle top wall of the truss body 41H-shaped seat and the left side wall of the sliding member 5, and the other spring rod group 7 is hinged to the front and rear side walls of the sliding member 5 and the sliding member 2 6.

[0042] The spring rod group 7 hinged on the middle top wall of the H-shaped seat of the truss body 41 and the left side wall of the sliding member 5 ensures that the truss body 41, the sliding member 5 and the spring rod group 7 always maintain a triangular structure when the sliding member 5 drives the laser cutting machine to move forward and backward, which helps to maintain the stability of the laser cutting machine when the sliding member 5 drives the laser cutting machine to move forward and backward; the spring rod group 7 hinged on the front and rear side walls of the sliding member 15 and the sliding member 26 ensures that the sliding member 15, the sliding member 26 and the spring rod group 7 always maintain a triangular structure when the sliding member 26 drives the laser cutting machine to move up and down, which helps to maintain the stability of the laser cutting machine when the sliding member 26 drives the laser cutting machine to move up and down, and reduces vibration during cutting operations.

[0043] Reference Figure 7 and Figure 8 The buffer shock absorbing mechanism 8 includes an adjusting groove 81. The track end portion of the right side wall of the H-shaped seat of the truss body 41 is symmetrically provided with an adjusting groove 81 in the front and rear, and the track end portion of the sliding member 5 is symmetrically provided with an adjusting groove 81 in the upper and lower parts. The inner wall of the adjusting groove 81 is connected with a rectangular shock absorbing member 83 through a spring. The rectangular shock absorbing member 83 is provided with a symmetrically distributed V-shaped adjusting track 84. The outer wall of the rectangular shock absorbing member 83 away from the spring is fixedly connected with a push column 82. One end of the push column 82 away from the rectangular shock absorbing member 83 is respectively arranged in the track end portion of the truss body 41 and the track end portion of the sliding member 5. A T-shaped buffer frame 85 connected to the inner wall of the adjusting groove 81 through a spring is slidably provided on the V-shaped adjusting track 84.

[0044] When the sliding member 1 5 moves forward and backward and the sliding member 2 6 moves up and down to the end position of the track, the end of the pushing column 82 will be squeezed, and the pushing column 82 will drive the rectangular shock absorber 83 to move, and the spring connected to the rectangular shock absorber 83 will be compressed. At the same time, the T-shaped buffer frame 85 will slide on the V-shaped adjustment track 84, and the spring connected to the T-shaped buffer frame 85 will be compressed. Then the spring rebounds and drives the T-shaped buffer frame 85 and the rectangular shock absorber 83 to reset. The springs in multiple directions are used to release force and buffer, thereby reducing the impact force when the laser cutting machine moves to the end position of the track, thereby reducing vibration, which helps to improve cutting accuracy and extend the service life of the truss body 41 and the track on the sliding member 5.

[0045] Reference Figure 1 , Fig. 9 , Fig.10 and Fig.11 The dust-proof balancing mechanism 9 includes a dust collecting box 91. The dust collecting box 91 is slidably connected to the track on the left side wall of the H-shaped seat of the truss body 41. The dust collecting box 91 is provided with a dust collecting assembly 92. The dust collecting assembly 92 includes a dust collecting pipe 921. The inlet and outlet of the dust collecting box 91 are connected to the dust collecting pipe 921. The end of the dust collecting pipe 921 is connected to four dust collecting heads 923 distributed on the left and right side walls of the inverted "mountain" shaped seat of the truss body 41. The outer end of the dust collecting pipe 921 is connected to the dust collecting pipe 921. The wall is sleeved with an arc-shaped fixing piece 922 fixed to the side wall of the H-shaped seat of the truss body 41; the front and rear inner walls of the slide rail 21 are staggered and fixedly connected with multiple driving protrusions 925 on the left and right sides; the middle part of the inverted "mountain"-shaped seat of the truss body 41 is rotatably connected with a driving piece 924 through a torsion spring rod; the driving piece 924 is composed of a frame-shaped piece sleeved on the outside of the dust collector head 923 and two V-shaped pieces connected to the outer wall of the frame-shaped piece with openings facing the truss body 41; the V-shaped piece of the driving piece 924 is adapted to the driving protrusion 925.

[0046] Reference Fig. 9 , Fig.10 and Fig.12 A stable balancing mechanism 93 is provided on the dust collecting box 91. A spring rod 931 is hinged on the top wall of the dust collecting box 91. A spring rod 932 is hinged on the top wall of the sliding member 5. The top walls of the spring rod 931 and the spring rod 932 are fixedly connected to one end of the cam connecting member 933. The other end of the cam connecting member 933 is rotatably connected to one end of the connecting rod 934. The other ends of the two connecting rods 934 are respectively rotatably connected to the left and right side walls of the balancing member 935; the two cam connecting members 933 are symmetrically distributed with the balancing member 935 as the center, and the bottom wall of the cross plate 42 is fixedly connected with a balancing seat 936. The balancing member 935 is slidably connected to the inside of the balancing seat 936 up and down, and the two cam connecting members 933 are respectively rotatably connected to the left and right side walls of the middle part of the inverted U-shaped frame 43.

[0047] The dust collection device arranged inside the dust collection box 91 is an existing equipment and will not be described in detail here. The dust collection duct 921 sucks in the dust and cutting debris near the dust collection head 923 for centralized collection. The dust collection duct 921 is a retractable flexible duct, and the dust collection head 923 is a flexible trumpet-shaped structure. When the truss body 41 and the laser cutting machine are moving, the dust collection head 923 is driven to perform dust collection, and the driving member 924 moves accordingly. When the driving member 924 moves to be in contact with the driving protrusion 925, the driving protrusion 925 drives the V-shaped member of the driving member 924 to rotate and tilt, and the frame-shaped member of the driving member 924 sleeved on the outside of the dust collection head 923 is slightly offset in position, thereby driving the flexible dust collection head 923 to slightly deflect in the dust collection range, so as to more fully clean the inside of the slide rail 21 and prevent dust and cutting debris from clogging the slide rail 21 and affecting the smoothness of sliding. The dust collecting box 91 is provided with a discharge port (not shown in the figure), and the impurities collected inside the dust collecting box 91 can be cleaned regularly through the discharge port.

[0048] When the sliding member 5 drives the laser cutting machine to move forward and backward for cutting operation, the spring rod 2 932 retracts and expands and rotates around the top wall of the sliding member 5, and the spring rod 2 932 pulls one end of the corresponding cam connecting member 933 to rotate, and the cam connecting member 933 drives one end of the corresponding connecting rod 934 at the other end to rotate, and the connecting rod 934 drives the balancing member 935 to move up and down, and the balancing member 935 drives the corresponding connecting rod 934 and cam connecting member 933 on the other side of the dust collecting box 91 to move and rotate in the opposite direction, and the spring rod 1 931 adaptively retracts and expands and rotates around the top wall of the dust collecting box 91, and the dust collecting box 91 is pushed to move forward and backward accordingly.

[0049] Through the adjustment of the stable balancing mechanism 93, the dust collecting box 91 and the sliding member 5 always keep moving in opposite directions. The dust collecting box 91 and the sliding member 5 are respectively arranged on the left and right sides of the truss body 41. When the sliding member 5 drives the laser cutting machine to move back and forth for cutting operations, the dust collecting box 91 moves in the opposite direction to maintain the stability of the overall structure of the truss body 41.

[0050] Reference Figure 1-Figure 12 The specific operation steps of the gantry truss of the laser cutting machine are as follows: the inverted "mountain" shaped seat of the truss body 41 slides left and right in the sliding cavity of the slide rail 21, the sliding member 1 5 moves forward and backward on the gantry truss mechanism 4, and the sliding member 2 6 moves up and down on the sliding member 1 5 to drive the laser cutting machine to move to a suitable position, so as to facilitate the laser cutting machine to perform cutting processing.

[0051] During the movement, the V-shaped shock-absorbing plate 22 performs buffering and shock absorption through the spring elastic force. The adjustment block 34 and the V-shaped shock-absorbing plate 22 cooperate to increase the stability of the truss body 41 when it stops and the laser cutting machine is operating. The positioning block 33 locks the position of the truss body 41. The truss body 41, the sliding member 5 and the spring rod group 7 and the sliding member 5, the sliding member 2 6 and the spring rod group 7 always maintain a triangular structure, further improving the stability; when the sliding member 1 5 moves forward and backward and the sliding member 2 6 moves up and down to the end position of the track, the end of the push column 82 is squeezed, and the buffering and shock-absorbing mechanism 8 releases force and buffers through springs in multiple directions.

[0052] During the left and right movement, the vacuum head 923 performs vacuuming, and the driving member 924 and the driving protrusion 925 cooperate to move the flexible vacuum head 923 to slightly deflect the vacuuming range, so as to fully clean the inside of the slide rail 21; when the sliding member 5 moves, the stabilizing balance mechanism 93 adjusts the dust collection box 91 to move in the opposite direction, so as to maintain the overall structure of the truss body 41 and the stability of the laser cutting machine during operation, thereby improving the cutting accuracy.

[0053] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A gantry truss for a laser cutting machine, comprising a U-shaped base (1) and a shock absorbing positioning mechanism (3), characterized in that: The top wall of the U-shaped base (1) is provided with two guide rail mechanisms (2) and two shock-absorbing positioning mechanisms (3) distributed front and rear, the guide rail mechanism (2) comprising a slide rail (21), and the top wall of the U-shaped base (1) is fixedly connected to the slide rail (21); The shock-absorbing positioning mechanism (3) comprises two front and rear support slides (31), and the top wall of the U-shaped base (1) is slidably connected to the support slide (31) in a front-rear manner, the two support slides (31) are symmetrically distributed with the slide rail (21) as the center, a bidirectional hydraulic rod (32) is installed between the two sides of the two support slides (31) that are close to each other, and the middle fixed end of the bidirectional hydraulic rod (32) is fixedly connected to the U-shaped base (1), and a plurality of positioning blocks (33) and a plurality of adjustment blocks (34) are evenly arranged and fixedly connected in the middle of the outer wall of the side of the two support slides (31) that are close to each other, and the positioning blocks (33) and the adjustment blocks (34) correspond one to another in the upper and lower directions; The slide rail (21) is provided with a gantry truss mechanism (4), a sliding member 1 (5) is slidably connected to the gantry truss mechanism (4) in a forward and backward manner, and a sliding member 2 (6) is slidably connected to the track provided on the right side wall of the sliding member 1 (5) in a forward and backward manner, a spring rod group (7) is provided on both the sliding member 1 (5) and the sliding member 2 (6), and a buffer shock absorbing mechanism (8) is symmetrically provided on the gantry truss mechanism (4) in a forward and backward manner and symmetrically provided on the sliding member 1 (5) in a forward and backward manner, and a dustproof balancing mechanism (9) is provided on the gantry truss mechanism (4); A sliding cavity is provided inside the slide rail (21), and a V-shaped shock absorbing plate (22) is connected to the bottom wall of the sliding cavity of the slide rail (21) via a spring. A plurality of adjustment openings (23) connected to the sliding cavity are evenly provided on the front and rear side walls of the slide rail (21), and the adjustment openings (23) correspond to the adjustment blocks (34) one by one. The top wall of the adjustment block (34) is inclined near the V-shaped shock absorbing plate (22), and the inclined top wall of the adjustment block (34) is adapted to the bottom wall of the V-shaped shock absorbing plate (22). The springs connecting the adjustment block (34) and the V-shaped shock absorbing plate (22) are arranged in a staggered manner. The gantry truss mechanism (4) comprises a truss body (41), the two slide rails (21) are slidably connected to the truss body (41), and the truss body (41) is composed of an H-shaped seat and an inverted "mountain"-shaped seat connected to the slide rail (21) and fixed to the bottom wall of the H-shaped seat, the top wall of the H-shaped seat of the truss body (41) is fixedly connected to an inverted U-shaped frame (43), and the front and rear inner walls of the inverted U-shaped frame (43) are fixedly connected to a transverse plate (42), and the front and rear side walls of the H-shaped seat of the truss body (41) are both provided with positioning grooves (44) corresponding to the positioning blocks (33); The dust-proof balancing mechanism (9) comprises a dust collection box (91), and the dust collection box (91) is slidably connected to a track provided on the left side wall of the H-shaped seat of the truss body (41) in a forward and backward manner; the dust collection box (91) is provided with a dust collection assembly (92), and the dust collection assembly (92) comprises a dust collection pipe (921); the inlet and outlet of the dust collection box (91) are connected to the dust collection pipe (921), and the end of the dust collection pipe (921) is connected to four dust collection heads (923) distributed on the left and right sides of the inverted "mountain"-shaped seat side wall of the truss body (41); the outer wall of the dust collection pipe (921) is sleeved with an arc-shaped fixing piece (922) fixed to the side wall of the H-shaped seat of the truss body (41); The dust collection box (91) is provided with a stabilizing balancing mechanism (93); a spring rod 1 (931) is hingedly connected to the top wall of the dust collection box (91); a spring rod 2 (932) is hingedly connected to the top wall of the sliding member 1 (5); the top walls of the spring rod 1 (931) and the spring rod 2 (932) are both fixedly connected to one end of a cam connecting member (933); the other end of the cam connecting member (933) is rotatably connected to one end of a connecting rod (934); and the other ends of the two connecting rods (934) are rotatably connected to the left and right side walls of the balancing member (935), respectively.

2. The gantry truss of a laser cutting machine according to claim 1, characterized in that: The sliding cavity of the slide rail (21) is matched with the inverted "mountain" shaped seat of the truss body (41); the middle bottom wall of the inverted "mountain" shaped seat of the truss body (41) is connected by two inclined surfaces to form an arrow shape, and the middle bottom wall of the inverted "mountain" shaped seat of the truss body (41) is matched with the top wall of the V-shaped shock absorbing plate (22); one of the spring rod groups (7) is hinged to the middle top wall of the H-shaped seat of the truss body (41) and the left side wall of the sliding member 1 (5); and the other spring rod group (7) is hinged to the front and rear side walls of the sliding member 1 (5) and the sliding member 2 (6).

3. The gantry truss of a laser cutting machine according to claim 1, characterized in that: The buffer shock absorbing mechanism (8) comprises an adjustment groove (81), and the track end portion opened on the right side wall of the H-shaped seat of the truss body (41) is symmetrically provided with the adjustment groove (81) in the front and rear, and the track end portion opened on the sliding member (5) is symmetrically provided with the adjustment groove (81) in the upper and lower parts, and the inner wall of the adjustment groove (81) is connected to a rectangular shock absorbing member (83) via a spring, and the rectangular shock absorbing member (83) is provided with symmetrically distributed V-shaped adjustment tracks (84).

4. The gantry truss of a laser cutting machine according to claim 3, characterized in that: A push column (82) is fixedly connected to an outer wall of a side of the rectangular damping member (83) away from the spring, and an end of the push column (82) away from the rectangular damping member (83) is respectively arranged in a track end portion opened by the truss body (41) and a track end portion opened by the sliding member 1 (5), and a T-shaped buffer frame (85) connected to the inner wall of the adjustment groove (81) via a spring is slidably disposed on the V-shaped adjustment track (84).

5. The gantry truss of a laser cutting machine according to claim 1, characterized in that: The front and rear inner walls of the slide rail (21) are staggered and fixedly connected to a plurality of driving protrusions (925) on the left and right sides; the front and rear side walls of the middle part of the inverted "mountain" shaped seat of the truss body (41) are rotatably connected to a driving member (924) via a torsion spring rod; the driving member (924) is composed of a frame-shaped member sleeved on the outside of the dust collector head (923) and two V-shaped members connected to the outer walls of the frame-shaped member and having openings facing the truss body (41); the V-shaped member of the driving member (924) is compatible with the driving protrusions (925).

6. The gantry truss of a laser cutting machine according to claim 1, characterized in that: The two cam connecting members (933) are symmetrically distributed with the balancing member (935) as the center, the bottom wall of the horizontal plate (42) is fixedly connected with a balancing seat (936), and the balancing member (935) is slidably connected to the inside of the balancing seat (936) up and down, and the two cam connecting members (933) are rotatably connected to the left and right side walls of the middle part of the inverted U-shaped frame (43).

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