Numerical control vertical cutting saw with central control rotary connecting disc

Abstract

The utility model discloses a numerical control vertical cutting saw with a central control rotary connecting disc, which comprises a central control rotary table, a vertical cutting device and a conveying mechanism, the central control rotary table is connected with the conveying mechanism, the vertical cutting device is arranged at one end of the conveying mechanism, and the central control rotary table comprises a rotary connecting disc and a driving device. The rotating connecting disc is connected with the rotating frame, the driving device drives the rotating connecting disc to rotate, a first positioning mechanism is arranged on one side of the rotating frame and provided with a first air cylinder and a positioning piece, a piston rod of the first air cylinder is hinged to the positioning piece, a first limiting part is arranged on one side of the positioning piece, and a second limiting part is arranged on the other side of the positioning piece. The first limiting part is connected with the rotating frame in a clamped mode, and the end, close to the first limiting part, of the positioning piece is hinged to the rotating frame. The rotary connecting disc and the driving device are arranged to drive the to-be-cut blank placed on the rotary frame to rotate, and are matched with the conveying mechanism and the vertical cutting device, so that multi-angle cutting is realized, and the production efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of numerical control cutting equipment, in particular to a numerical control vertical cutting saw with a central control rotating connecting disk. Background Art

[0002] Gantry high-speed CNC vertical saw is an advanced CNC cutting equipment, which uses CNC technology to achieve high-precision cutting to ensure the accuracy and consistency of product size. It is mainly used for high-precision and high-efficiency vertical cutting of cement products, marble and ceramic materials. Usually, the gantry structure is used to provide a large workbench area, which can cut multiple pieces of material at the same time.

[0003] The vertical cutting process of the existing gantry CNC vertical saw relies on manual adjustment of the material angle, which is time-consuming and labor-intensive, and increases the production cycle. Due to the subjectivity of manual operation, angle adjustment is prone to errors, resulting in unstable cutting accuracy and affecting product quality. In addition, the current embryonic body bearing structure may shake or tilt when placing heavy or large materials, affecting the cutting accuracy. Utility Model Content

[0004] In order to overcome the above-mentioned shortcomings of the prior art, the purpose of the utility model is to provide a CNC vertical cutting saw with a central control rotating connecting disk, which can realize automatic rotation and multi-angle cutting, shorten the production cycle and improve production efficiency.

[0005] The technical solution adopted by the utility model to solve its technical problems is: a CNC vertical cutting saw with a central control rotating connecting disk, comprising a central control rotating table, a vertical cutting device and a conveying mechanism, the central control rotating table is connected to the conveying mechanism, the vertical cutting device is arranged at one end of the conveying mechanism, the central control rotating table comprises a rotating connecting disk and a driving device, the rotating connecting disk is connected to a rotating frame, the driving device drives the rotating connecting disk to rotate, a first positioning mechanism is provided on one side of the rotating frame, the first positioning mechanism is provided with a first cylinder and a positioning member, the piston rod of the first cylinder is hinged to the positioning member, a first limiting part is provided on one side of the positioning member, the first limiting part is clamped with the rotating frame, and the end of the positioning member close to the first limiting part is hinged to the rotating frame.

[0006] As a further improvement of the utility model: it also includes a storage table, and the storage table is fixed on the rotating frame.

[0007] The placement table is used to place the embryo to be cut. The driving device drives the rotating connection disk to rotate, thereby driving the placement table on the rotating frame to rotate, and cooperates with the conveying mechanism and the vertical cutting device to realize the multi-angle adjustment cutting process of the embryo. A first positioning mechanism is also provided to limit and fix the placement table on the rotating frame to ensure that the embryo is stably placed on the rotating frame. Specifically, the telescopic action of the first cylinder is used to reduce or increase the limit space between the positioning member and the piston rod of the first cylinder, so as to realize the clamping and fixing or separation and loosening of the placement table.

[0008] As a further improvement of the utility model: a second positioning mechanism is provided on the other side of the rotating frame, the second positioning mechanism is provided with a second cylinder and a fixing piece, the piston rod of the second cylinder is connected to the fixing piece, and the fixing piece limits and fixes the storage table.

[0009] As a further improvement of the utility model: a positioning pin sleeve is provided on the outer periphery of the piston rod of the second cylinder.

[0010] As a further improvement of the utility model: a limiting slide rail is provided on the upper side of the rotating frame, a pulley group is provided on the lower side of the storage table, the pulley group is slidably connected to the limiting slide rail, a limiting plate is provided on the outer side of the pulley group, and the limiting plate abuts against the outer side of the limiting slide rail.

[0011] As a further improvement of the utility model: two limiting slide rails are symmetrically provided on the rotating frame, and correspondingly, two pulley groups are provided on the lower side of the storage table, each limiting slide rail is correspondingly slidably connected with a pulley group, and the limiting plate is arranged between the two limiting slide rails to ensure that the pulley group does not derail on the limiting slide rail, further preventing the storage table from shifting or shaking toward the outside of the limiting slide rail.

[0012] Furthermore, each pulley block is provided with at least one pulley.

[0013] As a further improvement of the present invention: a second limiting portion is provided on the other side of the positioning member, and the second limiting portion is engaged with the storage table.

[0014] As a further improvement of the present invention: a notch is provided on the other side of the positioning member to form a second limiting portion.

[0015] As a further improvement of the utility model: a slide rail installation groove is opened on the upper side of the rotating frame, and a fixing piece is connected to the lower side of the limiting slide rail, and the fixing piece can be detachably installed in the slide rail installation groove.

[0016] As a further improvement of the present invention: the slide rail mounting groove is a V-shaped long groove.

[0017] As a further improvement of the utility model: the vertical cutting device includes a main bracket, a lifting motor, a lifting sprocket chain group, a reducer and a saw band mechanism, the lifting motor is connected to the reducer, and the reducer is connected to the saw band mechanism through the lifting sprocket chain group.

[0018] As a further improvement of the present invention: the saw band mechanism includes a lifting frame, a vertical cutting driving wheel, a vertical cutting driven wheel, a saw band and a driving motor, the saw band is arranged around the outer circumference of the vertical cutting driving wheel and the vertical cutting driven wheel, and the driving motor drives the vertical cutting driving wheel to rotate.

[0019] As a further improvement of the utility model: a first fixing seat is provided on one side of the rotating frame, a second fixing seat is connected to the rear end of the first cylinder, and the first fixing seat is hinged to the second fixing seat.

[0020] Compared with the prior art, the beneficial effects of the utility model are:

[0021] The CNC vertical cutting saw of the utility model is designed with a rotating connecting disk, which is connected to a rotating frame, on which an embryo to be cut is placed, and the rotating connecting disk is driven to rotate by a driving device, thereby realizing automatic rotation of the embryo angle, and the cutting process is completed in cooperation with a conveying mechanism and a vertical cutting mechanism.

[0022] A first positioning mechanism is also provided, the positioning piece is hinged to the piston rod of the first cylinder, a first limiting portion is provided on one side of the positioning piece, and one end of the positioning piece close to the first limiting portion is hingedly connected to the rotating frame, and through the telescopic action of the first cylinder, a limiting space is formed between the positioning piece and the piston rod, limiting and fixing the structure of the embryo. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 The utility model is a structural schematic diagram of a CNC vertical cutting saw with a central control rotating connecting disk.

[0024] Figure 2 The utility model is a structural schematic diagram of a CNC vertical cutting saw with a central control rotating connecting disk.

[0025] Figure 3 for Figure 1 Schematic diagram of the structure at A in the middle.

[0026] Figure 4 It is a schematic diagram of the structure of the storage table and embryo body.

[0027] Reference numerals:

[0028] 1. Central control rotating table, 11. Rotating connecting plate, 12. Driving device,

[0029] 2. Vertical cutting device, 21. Main support, 22. Lifting motor, 23. Lifting sprocket chain set, 24. Speed ​​reducer, 25. Saw band mechanism, 251. Lifting frame, 252. Vertical cutting driving wheel, 253. Vertical cutting driven wheel, 254. Saw band, 255. Driving motor,

[0030] 3. Conveyor track,

[0031] 4. Rotating frame, 41. Articulated seat, 42. First fixed seat,

[0032] 5. first positioning mechanism, 51. first cylinder, 511. second fixing seat, 52. positioning member, 521. first limiting portion, 522. second limiting portion, 53. hinge joint,

[0033] 6. Storage table,

[0034] 7. Second positioning mechanism, 71. Second cylinder, 72. Fixing member,

[0035] 8. Limiting slide rail, 9. Pulley block, 10. Limiting plate. DETAILED DESCRIPTION

[0036] In order to make the purpose, technical solution and advantages of the present invention clearer, the technical solution of the present invention will be clearly and completely described below in conjunction with the specific embodiments of the present invention and the corresponding drawings. 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 making creative work are within the scope of protection of the present invention.

[0037] In order to solve the technical problem that the cutting angle of the embryo is manually adjusted in the prior art, which is time-consuming and labor-intensive and affects the cutting accuracy, the present invention is further described in conjunction with the accompanying drawings and embodiments:

[0038] like Figure 1-Figure 4 As shown, a CNC vertical cutting saw with a rotating connecting disk 11 includes a central control rotating table 1, a vertical cutting device 2 and a conveying mechanism, wherein the central control rotating table 1 is connected to the conveying mechanism, and the vertical cutting device 2 is arranged at one end of the conveying mechanism, the central control rotating table 1 includes a rotating connecting disk 11 and a driving device 12, the rotating connecting disk 11 is connected to a rotating frame 4, and the driving device 12 drives the rotating connecting disk 11 to rotate, and a first positioning mechanism 5 is provided on one side of the rotating frame 4, the first positioning mechanism 5 is provided with a first cylinder 51 and a positioning member 52, the piston rod of the first cylinder 51 is hinged to the positioning member 52, and a first limiting portion 521 is provided on one side of the positioning member 52, the first limiting portion 521 is clamped with the rotating frame 4, and the end of the positioning member 52 close to the first limiting portion 521 is hinged to the rotating frame 4.

[0039] The vertical cutting device 2 is used to cut the embryo, and the conveying mechanism is used to convey the embryo on the rotating frame 4 to the bottom of the vertical cutting device 2, and then the vertical cutting device 2 completes the embryo cutting process. By connecting the rotating connecting disk 11 to the bottom end of the rotating frame 4, the driving device 12 drives the rotating connecting disk 11 to rotate, so that the rotating frame 4 and the embryo on it rotate, and the placement angle is adjusted. The vertical cutting device 2 completes a cut on the embryo downward and then rises, the rotating connecting disk 11 rotates the embryo angle, and the vertical cutting device 2 cuts the embryo downward again, and multiple cycles are performed to achieve cutting of the embryo at different angles.

[0040] The central control turntable 1 is used to improve production efficiency and product quality. The central control turntable 1 is usually equipped with a control system for controlling the operation of the drive device 12 and realizing the automatic control and positioning functions of the turntable. The control system can accurately control the movement and stop of the turntable according to a preset program or signal.

[0041] The core component of the driving device 12 is an electric motor or a pneumatic motor, which is responsible for providing power to drive the rotating connecting disk 11 to rotate. The electric motor is usually a DC motor or an AC motor, which is driven by connecting to a power source. The pneumatic motor uses compressed air as a power source and is driven by a pneumatic control system.

[0042] The driving device 12 also includes a transmission device, which transmits the rotational motion of the electric motor or the pneumatic motor to the turntable to realize the rotation of the rotary connection disk 11. The transmission device generally includes gear transmission, belt transmission or chain transmission, etc., and a suitable transmission mode is selected according to specific design and requirements.

[0043] The driving device 12 is usually equipped with a controller for controlling the start and stop, speed and direction of the electric motor or pneumatic motor. The controller can accurately control the movement of the turntable according to a preset program or signal, and realize the automatic control and positioning function of the turntable.

[0044] As a preferred embodiment, it further comprises a storage table 6 , and the storage table 6 is fixed on the rotating frame 4 .

[0045] The placement table 6 is used to place the embryo to be cut. The driving device 12 drives the rotating connecting disk 11 to rotate, thereby driving the placement table 6 on the rotating frame 4 to rotate, and cooperates with the conveying mechanism and the vertical cutting device 2 to realize the multi-angle adjustment cutting process of the embryo. The first positioning mechanism 5 is also provided to limit and fix the placement table 6 on the rotating frame 4 to ensure that the embryo is stably placed on the rotating frame 4. Specifically, the telescopic action of the first cylinder 51 is used to reduce or increase the limit space between the positioning member 52 and the piston rod of the first cylinder 51, so as to realize the clamping and fixing or separation and loosening of the placement table 6.

[0046] As a preferred embodiment, the piston rod of the first cylinder 51 is connected to a hinged joint 53, a mounting hole is provided on the hinged joint 53, and correspondingly, a through hole is provided at one end of the positioning member 52, and the mounting hole of the hinged joint 53 and the through hole of the positioning member 52 are connected via a positioning column.

[0047] The hinged connection between the positioning member 52 and the first cylinder 51 is completed through the hinged joint 53 and the positioning column, and the positioning member 52 moves away from or close to the piston rod by utilizing the telescopic action of the piston rod of the first cylinder 51.

[0048] As a preferred embodiment, the hinge joint 53 is a Y-shaped hinge joint 53 , and one end of the positioning member 52 is disposed at an opening of the first Y-shaped hinge joint 53 .

[0049] As a preferred embodiment, a hinge seat 41 is provided at a position of the rotating frame 4 near the positioning member 52, and a positioning hole is opened on the hinge seat 41. Correspondingly, a limiting hole is provided at one end of the positioning member 52 near the piston rod, and the positioning hole of the hinge seat 41 and the limiting hole of the positioning member 52 are connected by a fixing column.

[0050] The positioning member 52 is hingedly connected to the rotating frame 4 through the hinge seat 41 and the fixed column, so that a certain limiting space is formed between the positioning member 52 and the piston rod. The action of the first cylinder 51 is used to reduce or increase the limiting space, thereby clamping and fixing the placement table 6 above the rotating frame 4 to prevent the embryo on the placement table 6 from shifting or shaking during the conveying and cutting processes, or to loosen the placement table 6 to replace the next embryo to be cut.

[0051] As a preferred embodiment, a second positioning mechanism 7 is provided on the other side of the rotating frame 4. The second positioning mechanism 7 is provided with a second cylinder 71 and a fixing member 72. The piston rod of the second cylinder 71 is connected to the fixing member 72. The fixing member 72 limits and fixes the storage table 6.

[0052] By utilizing the extending action of the second air cylinder 71 , the fixing member 72 extends to abut against or clamp the placement table 6 , thereby preventing the embryo on the placement table 6 from shifting or shaking.

[0053] As a preferred embodiment, the first positioning mechanism 5 or the second positioning mechanism 7 is respectively provided on the four sides of the rotating frame 4; or the first positioning mechanism 5 and the second positioning mechanism 7 are simultaneously distributed on the four sides of the rotating frame 4 to ensure that the upper limit is set in four directions and the storage platform 6 is fixed. Alternatively, the first positioning mechanism 5 or the second positioning mechanism 7 is installed on one side of the rotating frame 4, and the other side and other side edges of the rotating frame 4 are provided with baffles, retaining edges and other structures to fix the storage platform 6.

[0054] As a preferred embodiment, a positioning pin sleeve is provided on the outer periphery of the piston rod of the second cylinder 71 .

[0055] The principle of installing a locating pin sleeve on the outer periphery of the piston rod of the second cylinder 71 is to ensure the accurate positioning and stability of the cylinder output shaft during movement. When the piston rod of the cylinder passes through the pin sleeve, the locating pin will ensure that the position of the output shaft matches the position of the pin sleeve, so that the piston rod can remain stable in both axial and radial directions, which can effectively reduce the swing and deviation of the cylinder during operation and improve the accuracy and reliability of the system.

[0056] As a preferred embodiment, a limiting slide rail 8 is provided on the upper side of the rotating frame 4, a pulley group 9 is provided on the lower side of the storage table 6, the pulley group 9 is slidably connected to the limiting slide rail 8, a limiting plate 10 is provided on the outer side of the pulley group 9, and the limiting plate 10 abuts against the outer side of the limiting slide rail 8.

[0057] For example, the limiting slide rail 8 is arranged in the middle of the rotating frame 4, and the pulley block 9 is embedded in the limiting slide rail 8. The pulley block 9 is used to facilitate the sliding of the storage platform 6 onto the rotating frame 4, so as to quickly complete the embryo loading action. The outer periphery of the pulley block 9 is provided with two symmetrical limiting plates 10, and two limiting plates 10 are arranged in the width direction of the limiting slide rail 8. Thus, the two limiting plates 10 are used to prevent the storage platform 6 from being displaced in the width direction of the limiting slide rail 8, which affects the conveying and cutting effects.

[0058] As a preferred embodiment, two limiting slide rails 8 are symmetrically provided on the rotating frame 4, and correspondingly, two pulley groups 9 are provided on the lower side of the storage table 6, each limiting slide rail 8 is correspondingly slidably connected with a pulley group 9, and the limiting plate 10 is provided between the two limiting slide rails 8 to ensure that the pulley group 9 does not derail on the limiting slide rail 8, and further prevent the storage table 6 from shifting or shaking toward the outside of the limiting slide rail 8.

[0059] As another example, limiting slide rails 8 are respectively provided on both sides of the rotating frame 4, and each limiting slide rail 8 is slidably connected to a pulley group 9 on the storage table 6. By arranging two limiting plates 10 between the limiting slide rails 8 on both sides, the position of the storage table 6 and the embryo thereon in the width direction of the limiting slide rails 8 is limited to avoid displacement and shaking.

[0060] Furthermore, each pulley block 9 is provided with at least one pulley.

[0061] In one embodiment, a first positioning mechanism 5 is disposed on the left side of the rotating frame 4 , a second positioning mechanism 7 is disposed on the right side of the rotating frame 4 , and limiting slide rails 8 are disposed on the front and rear sides of the rotating frame 4 .

[0062] As a preferred embodiment, a second limiting portion 522 is provided on the other side of the positioning member 52 , and the second limiting portion 522 is engaged with the storage platform 6 .

[0063] As a preferred embodiment, a notch is formed on the other side of the positioning member 52 to form a second limiting portion 522 .

[0064] As a preferred embodiment, a notch is provided on one side of the positioning member 52 to form a first limiting portion 521. When the piston rod of the first cylinder 51 is extended or retracted, the positioning member 52 and the rotating frame 4 are allowed to avoid interference with each other through the first limiting portion 521.

[0065] As a preferred embodiment, a slide rail installation groove is opened on the upper side of the rotating frame 4, and a fixing member 72 is connected to the lower side of the limiting slide rail 8. The fixing member 72 can be detachably installed in the slide rail installation groove.

[0066] As a preferred embodiment, the slide rail mounting groove is a V-shaped long groove.

[0067] Different limiting slide rails 8 can be replaced through the slide rail installation grooves. For heavier or larger embryos, limiting slide rails 8 with higher load-bearing capacity can be replaced to ensure the stability and reliability of the storage platform 6 fixed on the rotating frame 4.

[0068] As a preferred embodiment, the vertical cutting device 2 includes a main bracket 21, a lifting motor 22, a lifting sprocket chain group 23, a reducer 24 and a saw belt mechanism 25, the lifting motor 22 is connected to the reducer 24, and the reducer is connected to the saw belt mechanism 25 through the lifting sprocket chain group 23.

[0069] The lifting motor 22, the lifting sprocket chain set 23, the speed reducer 24 and the saw belt mechanism 25 are all installed on the main bracket 21, and the main bracket 21 serves as the overall supporting body.

[0070] The conveying mechanism includes a conveying track 3 and a driving source. The conveying track 3 is laid below the main support 21. The driving source is used to provide power to drive the rotating frame 4 to move and transport the embryos on the conveying track 3. The transmission mechanism between the driving source and the conveying track 3 can be gears, chains, etc.

[0071] As a preferred embodiment, the saw belt mechanism 25 includes a lifting frame 251, a vertical cutting driving wheel 252, a vertical cutting driven wheel 253, a saw belt 254 and a driving motor 255. The saw belt 254 is arranged around the outer periphery of the vertical cutting driving wheel 252 and the vertical cutting driven wheel 253, and the driving motor 255 drives the vertical cutting driving wheel 252 to rotate.

[0072] As a preferred embodiment, the output shaft of the driving motor 255 is connected to a belt driving wheel, the vertical cutting driving wheel 252 is connected to a belt driven wheel via a rotating shaft, and the belt driving wheel and the belt driven wheel are connected via a belt.

[0073] As an alternative embodiment, the belt driving pulley and the belt driven pulley are connected by a chain or gear meshing.

[0074] As a preferred embodiment, a first fixing seat 42 is provided on one side of the rotating frame 4 , a second fixing seat 511 is connected to the rear end of the first cylinder 51 , and the first fixing seat 42 is hinged to the second fixing seat 511 .

[0075] The second cylinder 71 is hingedly mounted on the rotating frame 4 through the first fixing seat 42 and the second fixing seat 511, so that the installation angle of the second cylinder 71 relative to the rotating frame 4 can be adjusted conveniently. The limiting space between the positioning member 52 and the piston rod can be adjusted in cooperation with the hinge head 53 and the hinge seat 41, so that the limiting fixation of the storage tables 6 and embryos of different sizes can be flexibly adjusted, and the versatility is higher.

[0076] In summary, after reading the utility model document, ordinary technicians in this field can make various other corresponding transformation schemes based on the technical scheme and technical concept of the utility model without creative mental labor, which all fall within the scope of protection of the utility model.

Claims

1. A CNC vertical cutting saw with a central control rotating connecting plate, characterized in that: It includes a central control rotating table, a vertical cutting device and a conveying mechanism, wherein the central control rotating table is connected to the conveying mechanism, and the vertical cutting device is arranged at one end of the conveying mechanism. The central control rotating table includes a rotating connecting disk and a driving device, wherein the rotating connecting disk is connected to the rotating frame, and the driving device drives the rotating connecting disk to rotate. A first positioning mechanism is provided on one side of the rotating frame, and the first positioning mechanism is provided with a first cylinder and a positioning member, and a piston rod of the first cylinder is hinged to the positioning member, and a first limiting part is provided on one side of the positioning member, and the first limiting part is clamped with the rotating frame, and one end of the positioning member close to the first limiting part is hinged to the rotating frame.

2. A CNC vertical cutting saw with a central control rotating connecting plate according to claim 1, characterized in that: It also includes a storage platform, which is fixed on the rotating frame.

3. A CNC vertical cutting saw with a central control rotating connecting plate according to claim 2, characterized in that: A second positioning mechanism is provided on the other side of the rotating frame. The second positioning mechanism is provided with a second cylinder and a fixing member. The piston rod of the second cylinder is connected to the fixing member. The fixing member limits and fixes the storage table.

4. A CNC vertical cutting saw with a central control rotating connecting disk according to claim 2 or 3, characterized in that: A limiting slide rail is disposed on the upper side of the rotating frame, a pulley block is disposed on the lower side of the storage table, the pulley block is slidably connected to the limiting slide rail, a limiting plate is disposed on the outer side of the pulley block, and the limiting plate abuts against the outer side of the limiting slide rail.

5. A CNC vertical cutting saw with a central control rotating connecting plate according to claim 4, characterized in that: A second limiting portion is provided on the other side of the positioning member, and the second limiting portion is engaged with the storage table.

6. A CNC vertical cutting saw with a central control rotating connecting plate according to claim 4, characterized in that: A slide rail installation groove is provided on the upper side of the rotating frame, and a fixing piece is connected to the lower side of the position-limiting slide rail. The fixing piece can be detachably installed in the slide rail installation groove.

7. A CNC vertical cutting saw with a central control rotating connecting plate according to claim 5 or 6, characterized in that: The vertical cutting device comprises a main support, a lifting motor, a lifting sprocket chain set, a reducer and a saw belt mechanism. The lifting motor is connected to the reducer, and the reducer is connected to the saw belt mechanism through the lifting sprocket chain set.

8. A CNC vertical cutting saw with a central control rotating connecting plate according to claim 7, characterized in that: The saw belt mechanism comprises a lifting frame, a vertical cutting driving wheel, a vertical cutting driven wheel, a saw belt and a driving motor. The saw belt is arranged around the outer circumference of the vertical cutting driving wheel and the vertical cutting driven wheel, and the driving motor drives the vertical cutting driving wheel to rotate.

9. A CNC vertical cutting saw with a central control rotating connecting plate according to claim 1, characterized in that: A first fixing seat is provided on one side of the rotating frame, a rear end of the first cylinder is connected to a second fixing seat, and the first fixing seat is hinged to the second fixing seat.

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