CN108816885B - Automatic cleaning machine for shaft parts - Google Patents

Abstract

The invention discloses an automatic cleaning machine for shaft parts, which includes an outer casing and a bottom plate arranged at the bottom of the outer casing. There is a groove on the bottom plate near its front side, and a groove is provided on the groove near its two ends. Pneumatic slide table, each pneumatic slide table is provided with a support seat, a camshaft is fixed between the two support seats, and an end surface of one of the support seats close to the camshaft is provided with an end surface capable of controlling the cam The first water jet block is used for cleaning and drying the end face of the shaft; a main frame is provided on the bottom plate near its rear side, and a rodless cylinder is provided at the upper end of the main frame, and a rodless cylinder is provided on the rodless cylinder that can move forward and backward. The cylinder slider is connected to the driving seat, and the driving seat is connected to the water jet mechanism. The water jet mechanism moves forward and backward driven by the cylinder slider and the driving seat, and in the process of moving forward and backward, The circumferential side of the camshaft can be cleaned and dried.

Description

Automatic cleaning machine for shaft parts

Technical field

The invention belongs to the technical field of automobile parts processing, and specifically relates to an automatic cleaning machine for shaft parts.

Background technique

The camshaft is an important component in a piston engine. Its function is to control the opening and closing of the valves. During the operation of the engine, its speed is very high and it needs to withstand a large torque. Therefore, the design requires high strength and support for the camshaft. Its material is usually special cast iron or forgings. Since the law of valve movement is related to the power and operating characteristics of an engine, the machining accuracy of the camshaft plays a very important role in the performance of the engine.

During the machining process, the camshaft generally requires turning, milling, drilling, grinding and other processes. Before grinding, there will be a lot of machining debris on the surface of the part and the end hole. If it is not cleaned first, it will be processed later. If the grinding process is too slow, it will easily cause the size of the grinding position to be out of tolerance, which will affect the machining accuracy of the camshaft.

The patent application number 2016107003211 discloses an automatic cleaning machine for shaft parts, which includes an operating chamber set at the upper part of the front end of the bed. The upper end of the operating chamber is open, and a cleaning chamber is set above the middle part of the bed. The front end of the cleaning chamber is open. Inlet and outlet, the rear end of the bed is provided with a water tank, a vertical centrifugal pump is installed above the water tank, the liquid inlet end of the vertical centrifugal pump extends into the water tank, and the liquid outlet end of the vertical centrifugal pump passes through the first The water pipe is connected to the inlet of the pressure vessel. The pressure vessel is located on the rear side of the cleaning bin. The outlet of the pressure vessel is connected to the water collection main pipe through the second water pipe. The water collection main pipe is located in the cleaning warehouse. There is a row of water collection main pipes connected to the water collection main pipe. The nozzles are arranged from front to back. The inner bottom wall of the cleaning chamber is equipped with two parallel longitudinal guide rails. The front end of the longitudinal guide rails extends into the operation chamber. The feeding trolley slides through the slide block at the bottom and the two longitudinal guide rails. In conjunction with the feeding trolley, the rear end of the feeding trolley is connected to the piston rod of the longitudinal cylinder. The cylinder of the longitudinal cylinder is installed on the rear side of the cleaning chamber. The feeding trolley is provided with a first and a second parallel support plate on the left and right sides. The two supports A plurality of "V" shaped grooves are provided on the top of the board from front to back, and a positioning plate is provided on the other side of the second support plate relative to the first support plate. The positioning plate is parallel to the second support plate. On the positioning plate There are multiple positioning pins distributed from front to back, and the tips of each positioning pin are vertically facing the second support plate; a row of nozzles are installed on the same nozzle bracket, and two parallel first transverse guide rails are provided below the nozzle bracket. , the nozzle bracket slides with the two first transverse guide rails through the slide block at the bottom. A transverse cylinder is provided on the side of the nozzle bracket. The transverse cylinder and the longitudinal guide rail are separated on both sides of the nozzle bracket. The piston rod of the transverse cylinder is in contact with the two first transverse guide rails. The nozzle bracket is connected; a longitudinal beam is set on the other side of the first support plate relative to the second support plate. The longitudinal beam is a rectangular tube. Guide bushes are fixed at the front and rear ends of the top surface of the longitudinal beam. The guide bushes are The axis line is perpendicular to the longitudinal guide rail, and a detection pin is provided in each guide bush, and the tip of the detection pin is vertically facing the first support plate. On the one hand, this device has many parts and the connection relationship between the parts is complicated, which makes it easy to malfunction during actual use and difficult to repair; on the other hand, this device can only clean and clean the inner hole of shaft parts. Drying has a very limited effect and cannot achieve the effect of comprehensive cleaning and drying.

Contents of the invention

In view of the above-mentioned defects of the prior art, the technical problem to be solved by the present invention is to provide a shaft part that is simple in structure, compact, easy to operate and capable of cleaning and drying the axial inner hole and circumferential surface of the camshaft. Automatic cleaning machine.

The technical solution of the present invention is as follows:

An automatic cleaning machine for shaft parts, including an outer casing and a base plate arranged at the bottom of the outer casing. The base plate is provided with a groove near its front side along its length direction. The groove is located near its two ends. A pneumatic slide table that can move along the groove is respectively provided. Each of the pneumatic slide tables is provided with a support seat. The two opposite surfaces of the two support seats are respectively provided with a pressing tip, and the two supporting seats are respectively provided with a top. The space between the tops is used to install the camshaft, and one of the support seats is provided with a first water jet block on an end surface close to the camshaft that can clean and dry the end surface of the camshaft. ;

The base plate is provided with a main frame near its rear side along its length direction. The upper end of the main frame is provided with a rodless cylinder. The rodless cylinder is provided with a cylinder slider that can move forward and backward. The cylinder slider is connected to the cylinder slider. The driving seat is connected, and the driving seat is connected with the water jet mechanism. The water jet mechanism moves forward and backward driven by the cylinder slide block and the driving seat, and can adjust the circumferential direction of the camshaft during the forward and backward movement. Wash and dry on the side.

Using the above technical solution, the distance between the two pneumatic slide tables is moved according to the length of the camshaft, the camshaft is installed between the two tightening tips, and then the end surface of the camshaft is sprayed using the first water jet block. For cleaning and drying, the water jet mechanism moves forward and backward driven by the cylinder slider and the driving seat, and during the forward and backward movement, the circumferential side of the camshaft is cleaned and dried.

Preferably, the first water jet block has a cylindrical hollow cavity structure, and an end surface of the first water jet block close to the camshaft is distributed with nozzle holes communicating with the first water jet block. At least one first pipe joint is fixed on one of the support seats connected to the jet block. One end of the first pipe joint passes through the support seat and communicates with the first water jet block, and the other end is connected to a water pipe and an air pipe. , the water pipe and the air pipe are respectively equipped with control valves.

With this arrangement, when using it, first open the control valve on the water pipe, water will spray out from the nozzle hole of the first water jet block to clean the end face of the camshaft, then close the control valve on the water pipe, open the control valve on the air pipe, The nozzle hole of the first water-jet block sprays air toward the end face of the camshaft to complete drying the end face of the camshaft.

Preferably, the upper end surface and the side surface of the main frame are respectively provided with a first linear guide rail and a second linear guide rail along its length direction, and the driving seat can be driven along the first linear guide rail by the cylinder slider. The linear guide and the second linear guide move forward and backward.

This arrangement ensures the linearity and stability of the driving seat during movement.

Preferably, the driving seat includes an inverted L-shaped body, the horizontal surface of the inverted L-shaped body is connected to the cylinder slider, and the vertical surface of the inverted L-shaped body is connected to the water jet mechanism. The horizontal surface of the inverted L-shaped body and The inner sides of the vertical surfaces are respectively provided with guide rail sliding sleeves. The two guide rail sliding sleeves are respectively set on the first linear guide rail and the second linear guide rail and can move forward and backward along the first linear guide rail and the second linear guide rail. .

Preferably, the water jet mechanism includes a driving block connected to the driving seat. The driving block is arranged in the horizontal direction. Two spray seats are arranged side by side on one end face of the driving block. Below the two spray seats At least one second water jet block is connected respectively, and the second water jet blocks below the two spray seats are respectively located on both sides of the camshaft.

With this arrangement, the driving seat drives the second water spray block to move forward and backward during the movement, and the second water spray blocks under the two spray seats are respectively located on both sides of the camshaft, eliminating the need to rotate during use. The camshaft can be fully cleaned and dried on the circumferential side of the camshaft.

Preferably, the second water jet block has a cavity structure, and at least two nozzles are respectively distributed on the opposite surfaces of the two opposite second water jet blocks, and at least one nozzle is provided on the driving block. A second pipe joint. One end of the second pipe joint is connected to the second water spray block through a pipe. The other end of the second pipe joint is connected to a water pipe and an air pipe. The water pipe and the air pipe are respectively provided with control valves.

With this arrangement, when using it, first open the control valve on the water pipe, water enters the second water jet block from the pipe and then sprays out from the nozzle to clean the axial side of the camshaft. After the cleaning is completed, complete the control valve on the water pipe and open the air pipe. The control valve on the camshaft is blown to the side of the camshaft shaft through the nozzle of the second water jet block to dry it.

Preferably, the groove is further provided with at least one V-shaped support block and a limiting block that can move forward and backward along the groove at a position between the two pneumatic sliding tables.

With this arrangement, the camshaft is supported by the V-shaped support block, and the limit block prevents the circumferential rotation of the camshaft.

Preferably, the pneumatic slide includes a slide body that can move on the groove. The upper end of the slide body is slidably connected to a connection platform, and the support seat is connected to the connection platform. On the slide Two adjacent sides of the body are respectively provided with a fixed seat, and a first hydraulic buffer is provided on the fixed seat.

With this arrangement, the pneumatic sliding table can move forward and backward in the groove to adapt to camshafts of different sizes. The connecting platform can slide on the sliding table body to facilitate the installation and removal of the camshaft. When the connecting platform moves to the extreme position, the third position is set. A hydraulic buffer can cushion it.

Preferably, a proximity switch bracket is provided on the rear side of the main frame close to both ends of the rodless cylinder. A proximity switch is installed on the proximity switch bracket, and the proximity switch is electrically connected to the rodless cylinder.

With this arrangement, when the cylinder slide touches the limit switch during movement, the limit switch will transmit a signal to the rodless cylinder, and the rodless cylinder will stop functioning.

Preferably, a buffer bracket is provided on the front side of the main frame close to both ends of the second linear guide rail, and a second hydraulic buffer is installed on the buffer bracket.

With this arrangement, when the driving seat moves to the extreme position, the second hydraulic buffer can buffer it to prevent it from directly rushing out of the second linear guide rail.

Beneficial effects: The technical solution of the present invention adjusts the distance between the two pneumatic slide tables according to the length of the camshaft during use, fixes the camshaft between the two pressing tips, and then uses the first water jet block to The end face of the camshaft is cleaned and dried. The water jet mechanism moves forward and backward driven by the cylinder slider and the driving seat, and during the forward and backward movement, the circumferential side of the camshaft is cleaned and dried. , not only can the end face of the camshaft be cleaned and dried, but also the circumferential side of the camshaft can be cleaned and dried, and the entire process does not require turning the camshaft. The structure is simple, easy to use, and reduces the cost of operation. It reduces the risk, improves the service life of the equipment, and makes cleaning and drying more efficient.

Description of drawings

Figure 1 is a schematic diagram of the overall structure of the present invention;

Figure 2 is a schematic diagram of the internal structure in Figure 1 with the outer shell removed;

Figure 3 is a view of Figure 2 from another angle;

Figure 4 is a schematic structural diagram of the driving seat and water jet mechanism in Figure 2;

Figure 5 is a rear view of Figure 4;

Figure 6 is a schematic structural diagram of the driving seat in Figure 4;

Figure 7 is a schematic structural diagram of the V-shaped support block in Figure 2;

Figure 8 is a schematic structural diagram of the limiting block in Figure 2;

Figure 9 is a schematic structural diagram of the pneumatic sliding table in Figure 2.

Detailed ways

The present invention will be further described below in conjunction with the accompanying drawings and examples:

The automatic cleaning machine for shaft parts shown in Figures 1 to 9 includes an outer shell 1 and a bottom plate 2 arranged at the bottom of the outer shell 1. A control panel is provided on the outer shell 1, and the cleaning machine is programmed through a PLC program. For control, the base plate 2 is provided with a groove 21 near its front side along its length direction. The groove 21 is provided with a pneumatic slide 6 that can move along the groove 21 at its two ends. Each of the pneumatic sliding tables 6 is provided with a support seat 7. Two opposing surfaces of the two support seats 7 are respectively provided with a push-up tip 71. The space between the two push-up tips 71 is used to install a cam. Shaft 11, one end surface of one of the support seats 7 close to the camshaft 11 is provided with a first water jet block 8 capable of cleaning and drying the end surface of the camshaft 11, and the groove The position between the two pneumatic slide tables 6 on 21 is also provided with at least one V-shaped support block 9 and limiting block 10 that can move forward and backward along the groove 21. In this embodiment, two V-shaped support blocks 9 are provided. Support block 9 and a limit block 10, and the limit block 10 is located between the two V-shaped support blocks.

As can be seen from Figures 2 and 3, the above-mentioned first water jet block 8 has a cylindrical hollow cavity structure. One end of the first water jet block 8 is connected to the support seat 7, and the other end is provided with a top-locking The top 71 is disposed on an end surface of the first water jet block 8 close to the camshaft 11 and has nozzle holes 81 connected thereto. At the same time, the top 71 is also provided with a through hole, which is connected to the camshaft 11. The nozzle hole 81 in the center of the first water spray block 8 is connected. At least one first pipe joint 82 is fixed on one of the support seats 7 connected to the first water spray block 8. The first pipe joint 82 has One end passes through the support seat 7 and is connected to the first water jet block 8, and the other end is connected to a water pipe and an air pipe (this structure is a prior art and is not shown in the figure). The water pipe and the air pipe are respectively provided with Control valve, and in order to prevent the water and gas in the water pipe and air pipe from flowing back, a one-way valve is provided on the water pipe and air pipe.

A main frame 3 is provided on the above-mentioned bottom plate 2 near its rear side along its length direction. The upper end of the main frame 3 is provided with a rodless cylinder 4 along its length direction. Both ends of the rodless cylinder 4 are fixed to the main frame 3. The cylinder bracket 42 on the frame 3 is fixed on the main frame 3. The rodless cylinder 4 is provided with a cylinder slider 41 that can move forward and backward along it. The cylinder slider 41 is connected to a driving seat 51, and the driving seat 51 is connected to the sprayer. The water jet mechanism is connected to the water jet mechanism. The water jet mechanism moves forward and backward driven by the cylinder slider 41 and the driving seat 51, and can clean and dry the circumferential side of the camshaft 11 during the forward and backward movement. . A first linear guide rail 31 and a second linear guide rail 32 are respectively provided on the upper end surface and side surface of the main frame 3 along its length direction. The driving seat 51 can be driven along the cylinder slider 41 along the direction of the main frame 3 . The first linear guide 31 and the second linear guide 32 move forward and backward. A proximity switch bracket 35 is provided on the rear side of the main frame 3 close to both ends of the rodless cylinder 4. A proximity switch is provided on the proximity switch bracket 35, and the proximity switch is electrically connected to the rodless cylinder 4. . A buffer bracket 33 is provided on the front side of the main frame 3 close to both ends of the second linear guide rail 32, and a second hydraulic buffer 34 is installed on the buffer bracket 33.

Please refer to Figure 6. The driving seat 51 includes an inverted L-shaped body 510. The horizontal surface of the inverted L-shaped body 510 is connected to the cylinder slider 41, and the vertical surface of the inverted L-shaped body 510 is connected to the water spray mechanism. A guide rail sliding sleeve 511 is respectively provided on the inner side of the horizontal plane and the vertical plane of the molded body 510. Two rail sliding sleeves 511 are respectively sleeved on the first linear guide rail 31 and the second linear guide rail 32 and can be moved along the first linear guide rail 31 and the second linear guide rail 32. The linear guide 31 and the second linear guide 32 move forward and backward. A reinforcing side plate 512 is respectively provided between the horizontal plane and the vertical plane of the driving seat 51 close to both sides thereof.

It can be seen from Figures 4 and 5 that the above-mentioned water jet mechanism includes a driving block 52 connected to the driving seat 51. The driving block 52 is a rectangular block, which is arranged in the horizontal direction. In order to facilitate connection, the driving block 51 is A connecting plate 57 is provided between the vertical surface of the driving block 52 and the driving block 52. Two spray seats 53 are arranged side by side on the front end of the driving block 52. The spray seats 53 are rectangular blocks, and the bottoms of the two spray seats 53 are connected respectively. There is at least one second water spray block 54. In this embodiment, two second water spray blocks 54 are connected below each spray seat 53, and the second water spray blocks 54 below the two spray seats 53 Located on both sides of the camshaft 11 respectively. The second water jet block 54 has a rectangular cavity structure as a whole, and at least two nozzles 55 are respectively distributed on the opposite surfaces of the two second water jet blocks 54 facing each other below the two nozzle seats 53. In the embodiment, four nozzles 55 are provided, each nozzle 55 is connected with the second water spray block 54, and one surface of the nozzle 55 is recessed inward on the second water spray block 54, so that the second water spray block 54 is provided with an inward recess. The jet block 54 has a C-shaped structure when viewed from the side. The driving block 52 is provided with two second pipe joints 56. One end of the second pipe joint 56 is connected to the second water jet block 54 through a pipe. , the other end of which is connected to a water pipe and an air pipe, and control valves are respectively provided on the water pipe and the air pipe (this structure is a prior art and is not shown in the figure).

It can be seen from Figure 7 that the above-mentioned V-shaped support block 9 includes an L-shaped support body 91. The lower end of the horizontal plane of the L-shaped support body 91 is provided with a first protrusion 92 that can slide along the groove 21. The L-shaped support body 91 The upper end of the vertical surface of the support body 91 is connected to a wedge 93, and the upper end of the wedge 93 is provided with a V-shaped groove 94.

As can be seen from Figure 8, the above-mentioned limiting block 10 includes an L-shaped limiting body 100. The lower end of the L-shaped limiting body 100 is provided with a second protrusion 101 that can slide along the groove 21. A U-shaped groove 102 is formed at the upper end of the vertical surface of the L-shaped limiting body 100 .

It can be seen from Figure 9 that the above-mentioned pneumatic slide table 6 includes a slide table body 61 that can move on the groove 21. The upper end of the slide table body 61 is slidably connected to a connecting platform 62, and the support base 7 is fixed on the slide table body 61. On the connecting platform 62, a fixed seat 63 is provided on two adjacent sides of the slide body 61, and a first hydraulic buffer 64 is provided on the fixed seat 63.

When the present invention is used, first adjust the distance between the two pneumatic slide tables 6 according to the length of the camshaft 11, and then install the camshaft 11 between the support seats 7 on the two pneumatic slide tables 6, and move the V-shaped support Block 9 and the position of the limit block 10 support the camshaft 11, and then open the control valve on the water pipe. The water enters the first water jet block 8 from the water pipe and then sprays out from the nozzle hole 81, and the end surface of the camshaft 11 is Cleaning, after cleaning, close the control valve on the water pipe, open the control valve on the air pipe, and the first water jet block 8 is changed to spray air on the end face of the camshaft 11 to dry it; at the same time, the cylinder slider 41 drives the driving seat 51 The water jet mechanism moves back and forth along the first linear guide rail 31 and the second linear guide rail 32. During the movement, the control valve on the water pipe of the second pipe joint 56 is opened, and the water enters the second water jet block 54 and then exits from the second water jet block 54. The nozzle 55 sprays out to clean the circumferential side of the camshaft 11. After the cleaning is completed, the control valve on the water pipe is closed, the control valve on the air pipe is opened, and the nozzle 55 on the second water jet block 54 is changed to clean the camshaft 11. The air jet is used to dry it, and the proximity switch is provided to prevent the pneumatic slider 41 from exceeding the extreme position. The second hydraulic buffer 34 can buffer the running driving seat 51 when it is in the extreme position, thereby improving the overall safety. and equipment service life.

The preferred embodiments of the present invention are described in detail above. It should be understood that those skilled in the art can make many modifications and changes based on the concept of the present invention without creative efforts. Therefore, any technical solutions that can be obtained by those skilled in the art through logical analysis, reasoning or limited experiments based on the concept of the present invention and on the basis of the prior art should be within the scope of protection determined by the claims.

Claims (4)

1. An automatic cleaning machine for shaft parts, characterized by: It includes an outer shell (1) and a bottom plate (2) arranged at the bottom of the outer shell (1). The bottom plate (2) is provided with a groove (21) near its front side along its length direction. The groove (21) (21) is provided with a pneumatic slide (6) near its two ends that can move along the groove (21). Each of the pneumatic slides (6) is provided with a support seat (7). Two opposite surfaces of each of the support seats (7) are respectively provided with a pressing tip (71). The space between the two pressing tips (71) is used to install the camshaft (11). One of the supporting seats (7) is used to install the camshaft (11). An end surface of the seat (7) close to the camshaft (11) is provided with a first water jet block (8) capable of cleaning and drying the end surface of the camshaft (11); The bottom plate (2) is provided with a main frame (3) near its rear side along its length direction, and a rodless cylinder (4) is provided at the upper end of the main frame (3). The rodless cylinder (4) A cylinder slider (41) that can move forward and backward is provided. The cylinder slider (41) is connected to a driving seat (51). The driving seat (51) is connected to a water spraying mechanism. The water spraying mechanism is installed in the cylinder. The slider (41) and the driving seat (51) move forward and backward, and during the forward and backward movement, the circumferential side of the camshaft (11) can be cleaned and dried; The first water-jet block (8) is a cylindrical hollow cavity structure, and an end surface of the first water-jet block (8) close to the camshaft (11) is distributed with nozzle holes (81) communicating with it. ), at least one first pipe joint (82) is fixed on one of the support seats (7) connected to the first water jet block (8), and one end of the first pipe joint (82) passes through the The support seat (7) is connected to the first water jet block (8), and the other end is connected to a water pipe and an air pipe. The water pipe and the air pipe are respectively provided with control valves; A first linear guide rail (31) and a second linear guide rail (32) are respectively provided on the upper end surface and side surfaces of the main frame (3) along its length direction, and the driving seat (51) is mounted on the cylinder slider. Driven by (41), it can move forward and backward along the first linear guide rail (31) and the second linear guide rail (32); The driving seat (51) includes an inverted L-shaped body (510). The horizontal surface of the inverted L-shaped body (510) is connected to the cylinder slider (41), and the vertical surface is connected to the water jet mechanism. Guide rail sliding sleeves (511) are respectively provided on the inner sides of the horizontal plane and the vertical plane of the inverted L-shaped body (510). Two rail sliding sleeves (511) are respectively sleeved on the first linear guide rail (31) and The second linear guide rail (32) is capable of moving forward and backward along the first linear guide rail (31) and the second linear guide rail (32); The water jet mechanism includes a driving block (52) connected to the driving seat (51). The driving block (52) is arranged in the horizontal direction. Two driving blocks (52) are arranged side by side on one end surface of the driving block (52). The spray seat (53) has at least one second water spray block (54) connected below the two spray seats (53), and the second water spray blocks (54) below the two spray seats (53) are respectively connected to the spray seat (53). Located on both sides of the camshaft (11); A proximity switch bracket (35) is provided on the rear side of the main frame (3) close to both ends of the rodless cylinder (4). A proximity switch is installed on the proximity switch bracket (35), and the proximity switch is connected to the proximity switch bracket (35). The rodless cylinder (4) is electrically connected; A buffer bracket (33) is provided on the front side of the main frame (3) close to both ends of the second linear guide rail (32), and a second hydraulic buffer is arranged on the buffer bracket (33). (34). 2. The automatic cleaning machine for shaft parts according to claim 1, characterized in that: The second water spray block (54) has a cavity structure, and at least two nozzles (55) are respectively distributed on the opposite surfaces of the two opposite second water spray blocks (54). The block (52) is provided with at least one second pipe joint (56). One end of the second pipe joint (56) is connected to the second water jet block (54) through a pipe, and the other end of the second pipe joint (56) is connected to a water pipe. and air pipes, and control valves are respectively provided on the water pipes and air pipes. 3. The automatic cleaning machine for shaft parts according to claim 1 or 2, characterized in that: The groove (21) is also provided with at least one V-shaped support block (9) and a limiting block that can move forward and backward along the groove (21) at a position between the two pneumatic sliding tables (6). (10). 4. The automatic cleaning machine for shaft parts according to claim 3, characterized in that: The pneumatic sliding table (6) includes a sliding table body (61) that can move on the groove (21). The upper end of the sliding table body (61) is slidably connected with a connecting platform (62). The support base (7) Connected to the connecting platform (62), a fixed seat (63) is provided on two adjacent sides of the slide body (61), and a first hydraulic buffer is provided on the fixed seat (63). Device(64).