Rack assembling equipment of rack type roller shutter door

Abstract

The rack assembling equipment of the rack type roller shutter door comprises a rack, rails are arranged on the two sides of the top of the rack, a base band conveying mechanism is installed on the rails, and a rack base band is vertically fixed to the base band conveying mechanism; the base band conveying mechanism can drive the rack base band to move along the track; a workbench is arranged in the middle of the rack, a zipper tooth storage mechanism, a zipper tooth assembling mechanism and a zipper tooth fastening mechanism are arranged above the workbench, the zipper tooth storage mechanism is used for storing zipper teeth to be installed, and the zipper tooth assembling mechanism is used for taking out the zipper teeth from the zipper tooth storage mechanism and installing the zipper teeth on a rack base band; the zipper tooth fastening mechanism comprises a zipper tooth positioning clamp and a screw screwing device, the zipper tooth positioning clamp is used for fixing the positions of zipper teeth, and the screw screwing device is used for screwing screws into threaded holes in the tops of the zipper teeth. Compared with a traditional rack assembling mode depending on manpower, the automatic rack assembling device achieves automatic and precise rack assembling, and the assembling efficiency and quality are remarkably improved.

Description

Technical Field

[0001] The present invention relates to the field of assembly equipment, and in particular to a rack assembly equipment for a rack-type rolling shutter door. Background Art

[0002] Due to its advantages such as good protection, safety, sealing and convenient operation, the rack-type rolling shutter door is widely used in various building facilities such as commercial places, factories and garages. In the manufacturing process of the rack-type rolling shutter door, the assembly of the rack is a crucial link, and its assembly quality directly affects the running stability, service life and overall performance of the rolling shutter door.

[0003] The traditional rack assembly method mainly relies on manual operation. Workers need to manually snap the chain teeth onto the rack baseband one by one and then tighten them with screws. This process not only consumes a large amount of manpower, but also requires high operating skills and experience of workers. Due to the limitations of manual operation, it is difficult to ensure the consistency and accuracy of rack installation during the assembly process, and problems such as rack installation deviation, uneven spacing and different tightness are likely to occur. These problems will cause the rolling shutter door to get stuck, make excessive noise during operation, and may even lead to accidents such as derailment of the rolling shutter door, seriously affecting the normal use of the rolling shutter door.

[0004] With the rapid development of industrial automation technology, some enterprises have tried to use simple tooling fixtures to assist in rack assembly, but these tooling fixtures can only achieve semi-automation of some assembly processes and still require a large amount of manual intervention, and cannot fundamentally solve the problems of low assembly efficiency and unstable quality. Therefore, it is of great practical significance to develop an assembly equipment that can achieve automatic and precise assembly of the rack and has high flexibility and versatility. Summary of the Invention

[0005] In order to solve the above-mentioned existing technical problems, the present invention provides a rack assembly equipment for a rack-type rolling shutter door.

[0006] The technical solution of the present invention is realized as follows:

[0007] A rack assembly equipment for a rack-type rolling shutter door, comprising a frame, a baseband conveying mechanism, a chain tooth storage mechanism, a chain tooth assembly mechanism and a chain tooth fastening mechanism;

[0008] Tracks are provided on both sides of the top of the frame, the baseband conveying mechanism is installed on the tracks, and the rack baseband is vertically fixed on the baseband conveying mechanism; the baseband conveying mechanism can drive the rack baseband to move along the tracks;

[0009] A workbench is provided in the middle of the frame. Above the workbench are provided the chain tooth storage mechanism, the chain tooth assembly mechanism, and the chain tooth fastening mechanism. The chain tooth storage mechanism is used to store the chain teeth to be installed, and the chain tooth assembly mechanism is used to take out the chain teeth from the chain tooth storage mechanism and install them on the rack base belt.

[0010] The chain tooth fastening mechanism includes a chain tooth positioning fixture and a screw tightening device. The chain tooth positioning fixture is used to fix the position of the chain tooth, and the screw tightening device is used to screw the screw into the threaded hole at the top of the chain tooth to fasten the chain tooth on the rack base belt.

[0011] Furthermore, the base belt conveying mechanism includes a dragging device and a tensioning bracket. A number of the tensioning brackets are installed on the track of the frame. A base belt clamping fixture is provided in the middle of the tensioning bracket. The rack base belt is clamped by a number of the base belt clamping fixtures. The dragging device is arranged at one end of the frame close to the chain tooth fastening mechanism. One end of the rack base belt is clamped on the dragging device, and the dragging device can drag the rack base belt. When the dragging device pulls the rack base belt, the rack base belt pulls the tensioning bracket, and the resistance of the tensioning bracket causes the rack base belt to be tightened and kept vertical, avoiding bending and affecting the assembly of the chain teeth.

[0012] Furthermore, the chain tooth storage mechanism includes a vibrating bowl and a chute. The chute is provided on one side of the vibrating bowl. The chain teeth are placed in the vibrating bowl. The chute is provided with a bayonet guide rail. Under the vibration of the vibrating bowl, when the bottom opening of the chain tooth coincides with the bayonet guide rail, the chain tooth can slide out along the chute, and a baffle is provided at the end of the chute to block the chain teeth.

[0013] Furthermore, the chain tooth assembly mechanism includes a transfer robotic arm, a conical guide rail, and a propulsion device;

[0014] The conical guide rail is inclined. The width of the end of the conical guide rail far from the chain tooth fastening mechanism is smaller than the width of the bottom opening of the chain tooth, and the height is higher than the top of the rack base belt;

[0015] A base belt groove is provided at the bottom of the end of the conical guide rail close to the chain tooth fastening mechanism, and the top of the rack base belt passes through the base belt groove;

[0016] The transfer robot arm is provided with a horizontal lifting drive mechanism, a vertical lifting drive mechanism and a clamping jaw. The clamping jaw clamps and transfers the chain teeth at the chain tooth storage mechanism to above the conical guide rail under the drive of the horizontal lifting drive mechanism and the vertical lifting drive mechanism. The clamping jaw is provided with a rotating motor, which can rotate to align the bayonet at the bottom of the chain tooth with the conical guide rail. Then the vertical lifting drive mechanism lowers the clamping jaw to clamp the chain tooth on the conical guide rail. The propulsion device is arranged at one end of the conical guide rail away from the chain tooth fastening mechanism. The propulsion device pushes the chain tooth on the conical guide rail out of the conical guide rail. After the bayonet at the bottom of the chain tooth disengages from the conical guide rail, it tightens and clamps on the rack base belt.

[0017] Further, the workbench is also installed on the track and can slide along the track. It is convenient to adjust the position of the workbench as needed and facilitate making space for maintenance.

[0018] Further, a rack is arranged on one side of the track, and a motor and a gear are arranged at the bottom of the workbench. The gear cooperates with the rack, and the motor drives the gear to rotate, driving the workbench to slide along the track.

[0019] Further, the chain tooth positioning fixture includes a drive mechanism and positioning blocks. There are two positioning blocks and the drive mechanism, which are respectively arranged on both sides of the rack base belt. A positioning groove is arranged on the opposite side of the two positioning blocks. The drive mechanism is used to push the positioning blocks towards the rack base belt. The positioning blocks on both sides of the rack base belt clamp the chain teeth installed on the rack base belt in the middle. After fixing the position of the chain teeth, the screw tightening device is started.

[0020] Further, the positioning block is provided with at least two positioning grooves, which can clamp the fixed chain teeth and the chain teeth to be fixed at the same time. The positioning is more accurate.

[0021] Further, the screw tightening device includes a screw storage cylinder, a screw delivery pipe, a screw positioning clamp and a lifting screwdriver. When the chain teeth to be tightened are fixed in position by the chain tooth positioning fixture, the screw positioning clamp is located above the threaded hole at the top of the chain tooth. The screw positioning clamp consists of two rotatable clamping bodies. The screw falls into the screw positioning clamp from the screw storage cylinder through the screw delivery pipe. At this time, the lifting screwdriver descends under the drive of the air cylinder, pushes open the two clamping bodies of the screw positioning clamp, inserts the screw into the threaded hole at the top of the chain tooth, and the motor of the lifting screwdriver starts to screw the screw into the threaded hole and into the edge of the rack base belt to fix the chain tooth on the rack base belt.

[0022] Compared with the prior art, the beneficial effects of the present invention are:

[0023] Through the automated cooperation between the baseband conveying mechanism and the chain tooth assembly mechanism, this device can significantly reduce the labor input without manual installation of chain teeth, and remarkably improve the assembly efficiency of the rack. The chain tooth positioning fixture of this device can accurately fix the position of the chain teeth, precisely control the installation spacing of the chain teeth, ensure uniform spacing, and avoid the deviation of the chain tooth spacing caused by poor consistency in manual operation, aiming at the problem of insufficient coordination in the assembly process. A screw tightening device is set up to automatically position and tighten the screws, improve the efficiency, and eliminate the need for manual screw tightening. Brief Description of the Drawings

[0024] Figure 1 is a schematic structural diagram of a rack assembly device for a rack type rolling shutter door of the present invention;

[0025] Figure 2 is a schematic structural diagram of the chain tooth storage mechanism of a rack assembly device for a rack type rolling shutter door of the present invention;

[0026] Figure 3 is a schematic structural diagram of the conical guide rail of a rack assembly device for a rack type rolling shutter door of the present invention;

[0027] Figure 4 is a schematic structural diagram of the chain tooth positioning fixture of a rack assembly device for a rack type rolling shutter door of the present invention;

[0028] Figure 5 is a schematic structural diagram of the screw tightening device of a rack assembly device for a rack type rolling shutter door of the present invention.

[0029] 1 - Frame, 11 - Track, 12 - Workbench, 2 - Baseband conveying mechanism, 21 - Driving device, 22 - Tensioning bracket, 221 - Baseband clamping fixture, 3 - Chain tooth storage mechanism, 31 - Vibratory bowl feeder, 32 - Slideway, 321 - Bayonet guide rail, 4 - Chain tooth assembly mechanism, 41 - Transfer robotic arm, 411 - Horizontal lifting drive mechanism, 412 - Vertical lifting drive mechanism, 413 - Clamping claw, 42 - Conical guide rail, 421 - Baseband groove, 43 - Pushing device, 5 - Chain tooth fastening mechanism, 51 - Chain tooth positioning fixture, 511 - Drive mechanism, 512 - Positioning block, 5121 - Positioning groove, 52 - Screw tightening device, 521 - Screw storage cylinder, 522 - Screw delivery pipe, 523 - Screw positioning clamp, 524 - Lifting screwdriver, 6 - Rack baseband. Detailed Description of the Invention

[0030] Exemplary embodiments will be described in detail herein, and examples thereof are shown in the accompanying drawings. When the following description refers to the accompanying drawings, unless otherwise indicated, the same numbers in different drawings represent the same or similar elements. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with the present disclosure. On the contrary, they are merely examples of devices consistent with some aspects of the present disclosure as detailed in the appended claims.

[0031] The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0032] As Figures 1-5 shown, the present invention provides a rack assembly device for a rack-type rolling shutter door, including a frame 1, a base belt conveying mechanism 2, a chain tooth storage mechanism 3, a chain tooth assembly mechanism 4, and a chain tooth fastening mechanism 5;

[0033] Tracks 11 are provided on both sides of the top of the frame 1, the base belt conveying mechanism 2 is installed on the tracks 11, and the rack base belt 6 is vertically fixed on the base belt conveying mechanism 2; the base belt conveying mechanism 2 can drive the rack base belt 6 to move along the tracks 11;

[0034] A workbench 12 is provided in the middle of the frame 1, and the chain tooth storage mechanism 3, the chain tooth assembly mechanism 4, and the chain tooth fastening mechanism 5 are provided above the workbench 12. The chain tooth storage mechanism 3 is used to store the chain teeth to be installed, and the chain tooth assembly mechanism 4 is used to take out the chain teeth from the chain tooth storage mechanism 3 and install them on the rack base belt 6;

[0035] The chain tooth fastening mechanism 5 includes a chain tooth positioning fixture 51 and a screw tightening device 52. The chain tooth positioning fixture 51 is used to fix the position of the chain teeth, and the screw tightening device 52 is used to screw the screws into the threaded holes at the top of the chain teeth. When the screws are tightened, they are inserted into the edge of the rack base belt 6 to fasten the chain teeth to the rack base belt 6.

[0036] Further, the baseband conveying mechanism 2 includes a dragging device 21 and a tensioning bracket 22. A plurality of the tensioning brackets 22 are installed on the track 11 of the frame 1. A baseband clamping fixture 221 is provided in the middle of the tensioning bracket 22. The rack baseband 6 is clamped on a plurality of the baseband clamping fixtures 221. The dragging device 21 is arranged at one end of the frame 1 close to the chain tooth fastening mechanism 5. One end of the rack baseband 6 is clamped on the dragging device 21, and the dragging device 21 can drag the rack baseband 6. When the dragging device 21 pulls the rack baseband 6, the rack baseband 6 pulls the tensioning bracket 22, and the resistance of the tensioning bracket 22 causes the rack baseband 6 to be tightened and kept vertical, avoiding bending and affecting the assembly of chain teeth.

[0037] Further, the chain tooth storage mechanism 3 includes a vibrating disk 31 and a slideway 32. The slideway 32 is provided on one side of the vibrating disk 31. Chain teeth are placed in the vibrating disk 31. The slideway 32 is provided with a bayonet guide rail 321. Under the vibration of the vibrating disk 31, when the bottom opening of the chain tooth coincides with the bayonet guide rail 321, the chain tooth can slide out along the slideway 32. A baffle is provided at the end of the slideway 32 to block the chain teeth. The chain tooth assembly mechanism 4 takes the chain teeth at the end of the slideway 32.

[0038] Further, the chain tooth assembly mechanism 4 includes a transfer robotic arm 41, a conical guide rail 42 and a propulsion device 43;

[0039] The conical guide rail 42 is inclined. The width of the end of the conical guide rail 42 far from the chain tooth fastening mechanism 5 is smaller than the width of the bottom opening of the chain tooth, and the height is higher than the top of the rack baseband 6;

[0040] A baseband groove 421 is provided at the bottom of the end of the conical guide rail 42 close to the chain tooth fastening mechanism 5. The top of the rack baseband 6 passes through the baseband groove 421;

[0041] The transfer robotic arm 41 is provided with a horizontal lifting drive mechanism 411, a vertical lifting drive mechanism 412 and a clamping claw 413. The clamping claw 413 clamps and transfers the chain teeth at the chain tooth storage mechanism 3 above the conical guide rail 42 under the drive of the horizontal lifting drive mechanism 411 and the vertical lifting drive mechanism 412. The clamping claw 413 is provided with a rotating motor and can rotate to align the bayonet at the bottom of the chain tooth with the conical guide rail 42. The vertical lifting drive mechanism 412 then lowers the clamping claw 413 to clamp the chain tooth on the conical guide rail 42. The propulsion device 43 is arranged at the end of the conical guide rail 42 far from the chain tooth fastening mechanism 5. The propulsion device 43 pushes the chain teeth on the conical guide rail 42 out of the conical guide rail 42. After the bayonet at the bottom of the chain tooth disengages from the conical guide rail 42, it tightens and clamps on the rack baseband 6.

[0042] Both the horizontal lifting drive mechanism 411 and the vertical lifting drive mechanism 412 adopt screw rod slides.

[0043] Furthermore, the workbench 12 is also installed on the track 11 and can slide along the track 11. It is convenient to adjust the position of the workbench 12 as needed and facilitate making space for maintenance.

[0044] Furthermore, a rack is provided on one side of the track 11, a motor and a gear are provided at the bottom of the workbench 12, the gear is engaged with the rack, and the motor drives the gear to rotate, driving the workbench 12 to slide along the track 11.

[0045] Furthermore, the chain tooth positioning fixture 51 includes a drive mechanism 511 and positioning blocks 512. There are two positioning blocks 512 and the drive mechanism 511, which are respectively arranged on both sides of the rack baseband 6. A positioning groove 5121 is provided on the opposite side of the two positioning blocks 512. The drive mechanism 511 is used to push the positioning blocks 512 towards the rack baseband 6. The positioning blocks 512 on both sides of the rack baseband 6 clamp the chain teeth installed on the rack baseband 6 in the middle. After fixing the positions of the chain teeth, the screw tightening device 52 is started. When the baseband conveying mechanism 2 drives the rack baseband 6 to move, the distance of each movement is equal to the width of a single chain tooth.

[0046] Furthermore, the positioning block 512 is provided with three positioning grooves 5121, which can clamp two fixed chain teeth and one chain tooth to be fixed at the same time. The positioning is more accurate.

[0047] Furthermore, the screw tightening device 52 includes a screw storage cylinder 521, a screw conveying pipe 522, a screw positioning clamp 523 and a lifting screwdriver 524; when the chain teeth to be fastened are fixed in position by the chain tooth positioning fixture 51, the screw positioning clamp 523 is located above the threaded hole at the top of the chain teeth. The screw positioning clamp 523 is composed of two rotatable clamping bodies. The screw falls into the screw positioning clamp 523 from the screw storage cylinder 521 through the screw conveying pipe 522. At this time, the lifting screwdriver 524 descends under the drive of the air cylinder, pushes open the two clamping bodies of the screw positioning clamp 523, inserts the screw into the threaded hole at the top of the chain teeth, and the motor of the lifting screwdriver 524 is started to screw the screw into the threaded hole and screw it into the edge of the rack baseband 6 to fix the chain teeth on the rack baseband 6.

[0048] Through the automated cooperation of the baseband conveying mechanism and the chain gear assembly mechanism, this device can significantly reduce the labor input without manual installation of chain gears, and remarkably improve the assembly efficiency of rack teeth. The chain gear positioning fixture of this device can accurately fix the position of chain gears, precisely control the installation spacing of chain gears, ensure uniform spacing, and avoid the deviation of chain gear spacing caused by poor consistency of manual operation in response to the problem of insufficient coordination in the assembly process. A screw tightening device is set up to automatically position and tighten screws, improve efficiency, and eliminate the need for manual screw tightening.

[0049] The foregoing examples are illustrative only and are used to explain some of the features of the method of the present invention. The appended claims are intended to claim as broad a scope as can be conceived, and the embodiments presented herein are merely illustrative of selected implementations according to combinations of all possible embodiments. Thus, the applicant's intention is that the appended claims not be limited by the selection of examples illustrating the features of the present invention. Some of the numerical ranges used in the claims also include sub-ranges within them, and variations within these ranges should also be construed as being covered by the appended claims whenever possible.

Claims

1. A rack assembly device for a rack-type rolling shutter door, characterized in that, It includes a frame (1), a baseband conveying mechanism (2), a chain tooth storage mechanism (3), a chain tooth assembly mechanism (4) and a chain tooth fastening mechanism (5); On both sides of the top of the frame (1), there are tracks (11). The baseband conveying mechanism (2) is installed on the tracks (11), and the rack baseband (6) is vertically fixed on the baseband conveying mechanism (2). The baseband conveying mechanism (2) can drive the rack baseband (6) to move along the tracks (11); In the middle of the frame (1), there is a workbench (12). Above the workbench (12), there are the chain tooth storage mechanism (3), the chain tooth assembly mechanism (4) and the chain tooth fastening mechanism (5). The chain tooth storage mechanism (3) is used to store the chain teeth to be installed, and the chain tooth assembly mechanism (4) is used to take out the chain teeth from the chain tooth storage mechanism (3) and install them on the rack baseband (6); The chain tooth fastening mechanism (5) includes a chain tooth positioning fixture (51) and a screw tightening device (52). The chain tooth positioning fixture (51) is used to fix the position of the chain teeth, and the screw tightening device (52) is used to screw the screws into the threaded holes at the top of the chain teeth to fasten the chain teeth on the rack baseband (6).

2. The rack assembly device of a rack-type rolling shutter door according to claim 1, characterized in that: The baseband conveying mechanism (2) includes a dragging device (21) and a tensioning bracket (22). A number of the tensioning brackets (22) are installed on the tracks (11) of the frame (1). In the middle of the tensioning bracket (22), there is a baseband clamping fixture (221). The rack baseband (6) is clamped by a number of the baseband clamping fixtures (221). The dragging device (21) is arranged at one end of the frame (1) close to the chain tooth fastening mechanism (5). One end of the rack baseband (6) is clamped on the dragging device (21), and the dragging device (21) can drag the rack baseband (6).

3. The rack assembly device for a rack-type rolling shutter door according to claim 1, characterized in that: The chain tooth storage mechanism (3) includes a vibrating disk (31) and a slideway (32). On one side of the vibrating disk (31), there is the slideway (32). The chain teeth are placed in the vibrating disk (31). The slideway (32) is provided with a bayonet guide rail (321). Under the vibration of the vibrating disk (31), when the bottom opening of the chain teeth coincides with the bayonet guide rail (321), the chain teeth can slide out along the slideway (32). At the end of the slideway (32), there is a baffle to block the chain teeth.

4. The rack assembly device of a rack-type rolling shutter door according to claim 1, characterized in that: The chain tooth assembly mechanism (4) includes a transfer manipulator (41), a conical guide rail (42) and a propulsion device (43); The conical guide rail (42) is inclined. The width of the end of the conical guide rail (42) far from the chain tooth fastening mechanism (5) is smaller than the width of the bottom opening of the chain teeth, and the height is higher than the top of the rack baseband (6); At the bottom of the end of the conical guide rail (42) close to the chain tooth fastening mechanism (5), there is a baseband groove (421). The top of the rack baseband (6) passes through the baseband groove (421); The transfer robot arm (41) is provided with a horizontal lifting drive mechanism (411), a vertical lifting drive mechanism (412) and a clamping jaw (413). The clamping jaw (413) clamps the chain teeth at the chain tooth storage mechanism (3) and transfers them above the conical guide rail (42) under the drive of the horizontal lifting drive mechanism (411) and the vertical lifting drive mechanism (412). The clamping jaw (413) is provided with a rotary motor, and can rotate to align the bayonet at the bottom of the chain tooth with the conical guide rail (42). Then, the vertical lifting drive mechanism (412) lowers the clamping jaw (413) to clamp the chain tooth on the conical guide rail (42). The propulsion device (43) is arranged at one end of the conical guide rail (42) away from the chain tooth fastening mechanism (5). The propulsion device (43) pushes the chain tooth on the conical guide rail (42) out of the conical guide rail (42). After the bayonet at the bottom of the chain tooth disengages from the conical guide rail (42), it tightens and clamps on the rack base belt (6).

5. The rack assembly device for a rack-type rolling shutter door according to claim 1, characterized in that: The workbench (12) is also installed on the track (11) and can slide along the track (11).

6. The rack assembly device for a rack-type rolling shutter door according to claim 5, characterized in that: One side of the track (11) is provided with a rack. The bottom of the workbench (12) is provided with a motor and a gear. The gear is engaged with the rack. The motor drives the gear to rotate, driving the workbench (12) to slide along the track (11).

7. The rack assembly device for a rack-type rolling shutter door according to claim 1, characterized in that: The chain tooth positioning fixture (51) includes a drive mechanism (511) and positioning blocks (512). There are two positioning blocks (512) and the drive mechanism (511), which are respectively arranged on both sides of the rack base belt (6). A positioning groove (5121) is arranged on the opposite side of the two positioning blocks (512). The drive mechanism (511) is used to push the positioning blocks (512) towards the rack base belt (6). The positioning blocks (512) on both sides of the rack base belt (6) clamp the chain teeth installed on the rack base belt (6) in the middle. After fixing the position of the chain teeth, the screw tightening device (52) is started.

8. The rack assembly device of a rack-type rolling shutter door according to claim 7, characterized in that: The positioning block (512) is provided with at least two positioning grooves (5121), which can clamp the fixed chain teeth and the chain teeth to be fixed at the same time.

9. The rack assembly device for a rack-type rolling shutter door according to claim 1, characterized in that: The screw tightening device (52) includes a screw storage cylinder (521), a screw delivery pipe (522), a screw positioning clamp (523) and a lifting screwdriver (524); when the chain tooth to be fastened is fixed in position by the chain tooth positioning fixture (51), the screw positioning clamp (523) is located above the threaded hole at the top of the chain tooth. The screw positioning clamp (523) consists of two rotatable clamping bodies. The screw falls into the screw positioning clamp (523) from the screw storage cylinder (521) through the screw delivery pipe (522). At this time, the lifting screwdriver (524) descends under the drive of the cylinder, pushes open the two clamping bodies of the screw positioning clamp (523), inserts the screw into the threaded hole at the top of the chain tooth, starts the motor of the lifting screwdriver (524), screws the screw into the threaded hole and into the edge of the rack baseband (6), and fixes the chain tooth on the rack baseband (6).

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