XY-axis automatic row welding machine

Abstract

The utility model discloses an X-axis and Y-axis automatic row welding machine which comprises a walking mechanism arranged on a machine table and used for moving a workpiece to enable a welding mechanism to weld preset point positions of the workpiece respectively. The walking mechanism comprises a first walking assembly and a second walking assembly. The first walking assembly is arranged on the machine table, the second walking assembly is arranged on the first walking assembly, the material changing mechanism is arranged on one side of the machine table, the position of the material changing mechanism corresponds to the position of the starting end, and the material changing mechanism is used for changing the workpiece. The workpiece can be arranged on the material changing mechanism, the welded workpiece can be taken down through the material changing mechanism and replaced with a new workpiece to be welded, the feeding and discharging time of workers is shortened, and the labor amount of the workers is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of welding machines, in particular to an XY axis automatic welding machine. Background Art

[0002] The welding machine is also called mesh welding machine, which is mainly used for welding and forming equipment of various types of metal wires. The XY axis welding machine is a kind of automatic welding machine. The welding machine can weld in the X direction and the Y direction. It has two adjustable welding heads and has a wide range of applications. After adjusting through the computer system, welding operations can be performed.

[0003] When the XY axis automatic welding machine is welding, the workpiece is welded at various points along the set travel path within the coordinate axis formed by the XY axis. Therefore, the workpiece always starts from the starting point and then returns to the starting point. In the actual welding process, the worker needs to arrange a new workpiece on the material distribution table. When the welded workpiece returns to the starting point, the worker needs to go to the starting point to remove the welded workpiece, and then take the new workpiece on the material distribution table to the starting point for manual replacement. The worker wastes time turning back and forth to change materials, which increases the operator's workload. Even if the material distribution table is set at a position closer to the starting point, the time for changing workpieces cannot be reduced, but only the time for turning around can be reduced. Moreover, if the material distribution table is only set at a position closer to the starting point, the activity space is small, which affects the worker's operation. Utility Model Content

[0004] The utility model aims to provide an XY axis automatic welding machine to solve the problems existing in the prior art, which can reduce the process and time of workers replacing workpieces and reduce the workload of workers.

[0005] The utility model provides an XY axis automatic welding machine, comprising:

[0006] A machine platform, the machine platform is used to carry the workpiece;

[0007] A welding mechanism, which is arranged on one side of the machine platform and is used to weld the workpiece on the machine platform;

[0008] A walking mechanism, the walking mechanism is arranged on the machine platform, and the walking mechanism is used to move the workpiece so that the welding mechanism can respectively weld the preset points of the workpiece; the walking mechanism includes a first walking assembly and a second walking assembly;

[0009] in:

[0010] The first walking assembly is arranged on the machine platform, the second walking assembly is arranged on the first walking assembly, the first walking assembly is arranged along a first direction, the second walking assembly is arranged along a second direction, the workpiece is placed on the second walking assembly, the workpiece moves from a starting position to a terminal position of a preset path, and when the welding mechanism has welded all preset points of the workpiece, the workpiece is reset to the starting position;

[0011] A material changing mechanism, wherein the material changing mechanism is arranged on one side of the machine platform, the material changing mechanism corresponds to the starting end position, and the material changing mechanism is used to replace the workpiece.

[0012] An XY axis automatic welding machine as described above, wherein preferably, the material changing mechanism comprises a frame, a lifting assembly and a loading platform;

[0013] in:

[0014] The lifting assembly is arranged inside the frame, the loading platform is connected to the lifting assembly, the lifting assembly drives the loading platform to reciprocate up and down on the top of the frame, and the loading platform is used to load the workpiece.

[0015] An XY-axis automatic welding machine as described above, wherein preferably, the lifting assembly includes a telescopic member, a connecting rod, a connecting block and a first driving member, four telescopic members are provided, the four telescopic members are respectively connected to the inner wall of the frame, one end of the four telescopic members is connected to the bottom of the loading platform, the other end of the four telescopic members is respectively connected to one of the connecting rods, the other ends of the four connecting rods are respectively connected to the connecting blocks, the first driving member is arranged in the frame, and the first driving member is located above the connecting block.

[0016] An XY axis automatic welding machine as described above, wherein, preferably, a reinforcing beam is provided inside the frame, a mounting block is provided on the reinforcing beam, the middle section of the connecting rod is connected to the mounting block, the connecting rod is rotatable in the mounting block, sliding grooves are respectively provided at both ends of the connecting rod, and protrusions are respectively provided on one end of the telescopic member connecting the connecting rod and the connecting block, and the protrusions are movable in the sliding grooves.

[0017] An XY axis automatic welding machine as described above, wherein preferably, the loading platform includes a loading platform body and a crossbeam, the crossbeam is symmetrically arranged on both sides of the loading platform body along the second direction, and a first opening is formed between the crossbeams on both sides, and the first opening is used for the workpiece to move between the material changing mechanism and the walking mechanism.

[0018] In the XY axis automatic welding machine as described above, preferably, at least two cross beams are provided, a preset distance is provided between adjacent cross beams on the same side, and a plurality of first sliding members are provided at intervals on opposite surfaces of the cross beams on both sides.

[0019] In the XY axis automatic welding machine as described above, preferably, the first travel assembly includes a first slide rail, a first slider, a first moving frame and a second driving member;

[0020] in:

[0021] The first slide rail is arranged on the machine platform along a first direction, the first slider is arranged on the first slide rail, the first movable frame is arranged on the first slider, the second driving member is arranged on one side of the frame along the first direction, the output end of the second driving member is connected to the first movable frame, and the second driving member drives the first movable frame to reciprocate on the first slide rail.

[0022] In the XY axis automatic welding machine as described above, preferably, the second travel assembly includes a second slide rail, a second slider, a second moving frame and a third driving member;

[0023] in:

[0024] The second slide rail is arranged on the first movable frame along the second direction, the second slider is arranged on the second slide rail, the second movable frame is arranged on the second slider, the third driving member is arranged on one side of the first movable frame along the second direction, the output end of the third driving member is connected to the second movable frame, and the third driving member drives the second movable frame to reciprocate on the second slide rail.

[0025] An XY axis automatic welding machine as described above, wherein preferably, a second opening is formed on a side of the second movable frame close to the material changing mechanism, the second opening corresponds to the size of the first opening, and the second movable frame is provided with a plurality of second sliding members for moving the workpiece.

[0026] In the XY axis automatic welding machine as described above, preferably, an operation panel is provided on one side of the machine platform.

[0027] Compared with the prior art, the utility model provides a material changing mechanism, which not only allows the workpieces to be arranged on the material changing mechanism, but also allows the welded workpieces to be removed through the material changing mechanism and replaced with new workpieces for welding, thereby reducing the process and time for workers to replace workpieces and alleviating the workload of workers. By providing a multi-layer loading table, the workpieces can be arranged and replaced, reducing the space occupied by the workbench. By providing multiple sliding parts on the loading table and the second movable frame, material changing is more labor-saving. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 It is a structural schematic diagram of the utility model;

[0029] Figure 2 It is a schematic diagram of the top view structure of the utility model;

[0030] Figure 3 It is a structural schematic diagram of the material changing mechanism in the utility model;

[0031] Figure 4 It is a structural schematic diagram of the lifting component in the utility model;

[0032] Figure 5 It is a structural schematic diagram of the loading platform in the utility model;

[0033] Figure 6 It is a structural schematic diagram of the walking mechanism in the utility model;

[0034] Figure 7 It is a structural schematic diagram of the second mobile frame in the utility model.

[0035] Description of reference numerals:

[0036] 1-Machine;

[0037] 2-Welding mechanism;

[0038] 3- Walking mechanism;

[0039] 30-first walking assembly; 300-first slide rail; 301-first slider; 302-first moving frame; 303-second driving member;

[0040] 31-second walking assembly; 310-second slide rail; 311-second slider; 312-second moving frame; 3120-second opening; 3121-second sliding member; 3122-locking member; 313-third driving member;

[0041] 4-Material changing mechanism;

[0042] 40-frame; 400-reinforcement beam; 401-mounting block; 402-connecting rod; 403-connecting block; 404-sliding groove; 405-bump;

[0043] 41-lifting assembly; 410-telescopic member; 411-first driving member;

[0044] 42-loading platform; 420-loading platform body; 421-crossbeam; 422-first opening; 423-first sliding member;

[0045] 5- Operation panel;

[0046] D1-first direction;

[0047] D2 - Second direction. DETAILED DESCRIPTION

[0048] The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention.

[0049] In the following embodiments, the first direction D1 is a vertical direction when looking down at the device, and the second direction D2 is a horizontal direction when looking down at the device. The first direction D1 and the second direction D2 are perpendicular to each other when they are in the same horizontal plane.

[0050] See also Figure 1-3 The utility model provides an XY axis automatic welding machine 2, comprising: a machine platform 1, a welding mechanism 2, a walking mechanism 3 and a material changing mechanism 4;

[0051] Among them, the machine 1 is used to carry the workpiece, the welding mechanism 2 is used to weld the workpiece on the machine 1, and the welding mechanism 2 is arranged on one side of the machine 1. In this embodiment, the welding mechanism 2 is arranged on one side of the machine 1 along the second direction D2; the walking mechanism 3 is arranged on the machine 1, and the walking mechanism 3 is used to move the workpiece so that the welding mechanism 2 can weld the preset points of the workpiece respectively.

[0052] In this embodiment, the workpiece can be a dragon net or other workpiece that needs to be welded. The preset points of the workpiece are the points where the workpiece needs to be welded. The internal controller of the welding mechanism 2 controls the movement of the workpiece on the machine 1 and the welding of the welding mechanism 2. The welding mechanism 2 and the control method of the welding mechanism 2 are both existing technologies and will not be repeated here.

[0053] In order to realize automatic welding of the workpiece along the preset points, the walking mechanism 3 includes a first walking component 30 and a second walking component 31;

[0054] Wherein: the first walking assembly 30 is arranged on the machine 1, the second walking assembly 31 is arranged on the first walking assembly 30, the first walking assembly 30 is arranged along the first direction D1, the second walking assembly 31 is arranged along the second direction D2, the workpiece is placed on the second walking assembly 31, the workpiece moves from the starting position to the terminal position of the preset path, and when the welding mechanism 2 has welded all the preset points of the workpiece, the workpiece is reset to the starting position.

[0055] In this embodiment, see Figure 2 The preset path of the workpiece is the moving route of the workpiece on the frame 40. The workpiece is loaded from one side of the frame 40 and moves along the preset path. When it reaches the preset point, the welding unit 2 welds the workpiece in sequence. After welding is completed, the workpiece returns to the loading point, that is, the starting position.

[0056] In order to reduce the time for workers to go up and down to change materials, a material changing mechanism 4 is set on one side of the machine 1. The material changing mechanism 4 corresponds to the starting position. The material changing mechanism 4 is used to replace the workpiece. The workpiece always starts from the starting position and resets to the starting position. Therefore, the material changing mechanism 4 is set at the corresponding starting position to facilitate workers to take off the completed workpiece and replace it with a new workpiece in time. There is no need to take off the completed workpiece and place it somewhere, and then go to another place to get a new workpiece and then return to the machine 1 for replacement, which greatly reduces the time for replacing the workpiece. The material changing mechanism 4 and the machine 1 can be fixed together or placed at a certain distance.

[0057] In one possible implementation, see Figure 3 The material changing mechanism 4 includes a frame 40, a lifting assembly 41 and a loading platform 42; the lifting assembly 41 is arranged inside the frame 40, and the loading platform 42 is connected to the lifting assembly 41. The lifting assembly 41 drives the loading platform 42 to reciprocate up and down on the top of the frame 40, and the loading platform 42 is used to load the workpiece.

[0058] When the previous workpiece enters the machine 1, the lifting component 41 lifts the loading platform 42 to a suitable position, which is convenient for workers to load new workpieces on the loading platform 42. After the previous workpiece is welded and reset, the lifting component 41 drops to a level below or parallel to the machine 1, which is convenient for workers to remove the previous workpiece from the machine 1. Then the lifting component 41 is lifted until the loading platform 42 is on the same level as the machine 1, and the worker pushes the new workpiece onto the machine 1. In this way, the worker no longer needs to use other workbenches to complete the installation of new materials, and the loading platform will not affect the worker's material change, reducing the material change process. In addition, since the loading platform 42 is very close to the machine 1, the worker can observe the welding condition of the workpiece at the first time. The lifting component 41 can be manually controlled by the worker, or the operation time can be preset by the machine.

[0059] In this embodiment, participating Figure 4 The lifting assembly 41 includes a telescopic member 410, a connecting rod 402, a connecting block 403 and a first driving member 411. There are four telescopic members 410, which are respectively connected to the inner wall of the frame 40, and can be specifically arranged at the four corners of the inner wall of the frame 40. One end of the four telescopic members 410 is connected to the bottom of the loading platform 42, and the other ends of the four telescopic members 410 are respectively connected to a connecting rod 402, and the other ends of the four connecting rods 402 are respectively connected to the connecting block 403. The first driving member 411 is arranged in the frame 40, and the first driving member 411 is located above the connecting block 403. The first driving member 411 can be an electric push rod. The worker controls the first driving member 411 to apply a downward force to the connecting block 403, and the connecting rod 402 drives the telescopic member 410 upward, thereby lifting the loading platform 42. When the output shaft of the first driving member 411 is reset, the loading platform 42 falls back to its original position under the action of gravity.

[0060] Example 1

[0061] See also Figure 3-4 A reinforcing beam 400 is provided inside the frame 40. The reinforcing beam 400 is used to connect the lifting assembly 41 to increase the stability of the lifting assembly 41 and make the lifting process more stable. A mounting block 401 is provided on the reinforcing beam 400. The middle section of the connecting rod 402 is connected to the mounting block 401. The connecting rod 402 can rotate in the mounting block 401. Sliding grooves 404 are respectively provided at both ends of the connecting rod 402. A convex block 405 is respectively provided at one end of the telescopic member 410 and the connecting block 403 close to the connecting rod 402. The convex block 405 is arranged in the sliding groove 404 and can move in the sliding groove 404.

[0062] When the first driving member 411 presses down the connecting block 403, the protrusion 405 on the connecting block 403 and the telescopic member 410 slides from one end of the sliding groove 404 to the other end, and the end of the connecting rod 402 close to the connecting block 403 is downward, and the end of the connecting rod 402 away from the connecting block 403 is upward, pushing the telescopic member 410 to lift the loading platform 42. When the loading platform 42 needs to fall, the output shaft of the first driving member 411 is reset, and the loading platform 42 falls back under the action of gravity, and the connecting rod 402 is also reset. The structure of the lifting assembly 41 can ensure that the four telescopic members 410 drive the loading platform 42 to rise and fall at the same time. In addition, a guide hole can be opened at the center of the connecting block 403. When the output shaft of the first driving member 410 presses down the connecting block 403, it is guided and limited to avoid deviation and affecting the lifting effect.

[0063] This embodiment 2

[0064] See also Figure 5 The loading platform 42 includes a loading platform body 42 and a crossbeam 421. The crossbeams 421 are symmetrically arranged on both sides of the loading platform body 42 along the second direction D2. A first opening 422 is formed between the crossbeams 421 on both sides. The first opening 422 is used for the workpiece to move between the material changing mechanism 4 and the traveling mechanism 3. The workpiece that has been welded on the traveling mechanism 3 can be moved parallel to the loading platform 42 from the first opening 422, without taking the workpiece on the traveling mechanism 3 for replacement, which is more convenient when changing materials.

[0065] In this embodiment, participating Figure 1-2 and Figure 6 , the first walking assembly 30 includes a first slide rail 300, a first slider 301, a first moving frame 302 and a second driving member 303;

[0066] Wherein: the first slide rail 300 is arranged on the machine 1 along the first direction D1, the first slider 301 is arranged on the first slide rail 300, the first movable frame 302 is arranged on the first slider 301, the second driving member 303 is arranged on one side of the frame 40 along the first direction D1, the output end of the second driving member 303 is connected to the first movable frame 302, and the second driving member 303 drives the first movable frame 302 to reciprocate on the first slide rail 300.

[0067] The second travel assembly 31 includes a second slide rail 310, a second slider 311, a second moving frame 312 and a third driving member 313;

[0068] Wherein: the second slide rail 310 is arranged on the first mobile frame 302 along the second direction D2, the second slider 311 is arranged on the second slide rail 310, the second mobile frame 312 is arranged on the second slider 311, the third driving member 313 is arranged on one side of the first mobile frame 302 along the second direction D2, the output end of the third driving member 313 is connected to the second mobile frame 312, and the third driving member 313 drives the second mobile frame 312 to reciprocate on the second slide rail 310. Since the second slide rail 310 is arranged on the first mobile frame 302, when the first mobile frame 302 moves in the first direction D1, the second mobile frame 312 can also move in the second direction D2 at the same time, thereby realizing the movement of the second mobile frame 312 on the XY axis formed by the first direction D1 and the second direction D2. The second driving member 303 and the third driving member 313 can be linear motors or servo motors, etc.

[0069] In one possible implementation, see Figure 3 and Figure 5 At least two beams 421 are provided, and there is a preset distance between adjacent beams 421 on the same side, and a plurality of first sliding members 423 are provided at intervals on the opposite surfaces of the beams 421 on both sides. There is a certain distance between adjacent beams 421, so that at least two workpieces can be accommodated on the loading platform 42. When the previous workpiece is welded, the worker can arrange a new workpiece at the beam 421 on the lower layer of the loading platform 42. After the previous workpiece is completed, the lifting assembly 41 descends to the upper beam 421 and is parallel to the second walking assembly 31, and the previous workpiece is pulled parallel to the upper beam 421, and the previous workpiece is taken away, and then the lifting assembly 41 is raised to the lower beam 421 and is parallel to the second walking assembly 31, and then the new workpiece is pushed from the first opening 422 to the second walking assembly 31 to complete the new welding.

[0070] In order to make it easier for workers to pull and move the workpiece, a plurality of first sliding members 423 are correspondingly arranged on the crossbeam 421, so that the workpiece can be moved with less effort.

[0071] Correspondingly, see Figure 7In order to facilitate the docking of the second movable frame 312 with the loading platform 42, a second opening 3120 is formed on the side of the second movable frame 312 close to the material changing mechanism 4, and the second opening 3120 corresponds to the size of the first opening 422. When the workpiece is in the starting position, the workpiece can be easily moved between the second movable frame 312 and the loading platform 42 through the first opening 422 and the second opening 3120. The second movable frame 312 is provided with a plurality of second sliding members 3121 for moving the workpiece. The second sliding members 3121 make the movement of the workpiece smoother, the workers save more effort, and reduce the workers' labor. The first sliding member 423 and the second sliding member 3121 can be pulleys or bearings.

[0072] A locking member 3122 is also provided on the second movable frame 312 for limiting the position of the workpiece on the second movable frame 312 to prevent it from deviating during welding or movement, resulting in inaccurate welding points. The locking member 3122 may be a clip.

[0073] In this embodiment, see Figure 1 and Figure 6 An operation panel 5 is provided on one side of the machine 1 for controlling the XY-axis welding mechanism 2. The operation panel 5 is movably connected to the machine 1 for easy access by workers.

[0074] Based on the above embodiments, the working process of the XY-axis automatic welding mechanism of the utility model is as follows: when the current workpiece enters the machine platform 1 for welding, the operator arranges a new workpiece on the lower beam 421. When the current workpiece completes welding and returns to the starting position, the lifting assembly 41 lowers the loading platform 42 to the upper beam 421 and the second moving frame 312 are at the same horizontal plane. The operator pulls the previous workpiece on the second moving frame 312 to the upper beam 421 and removes it, and then raises the loading platform 42 to the lower beam 421 and the second moving frame 312 are at the same horizontal plane. The operator pushes the new workpiece onto the second moving frame 312 and locks it with a locking member. The second moving frame 312 travels along a preset path, and the welding mechanism 2 welds the preset points of the workpiece on the set XY axis. After welding is completed, the second moving frame 312 is reset to the starting position to start the next round of material replacement. The device can enable two workpieces to be loaded and unloaded alternately, which is convenient for taking, reduces the material replacement time of workers, and can also reduce the workload of workers.

[0075] The above describes in detail the structure, features and effects of the utility model based on the embodiments shown in the drawings. The above is only a preferred embodiment of the utility model, but the utility model is not limited to the scope of implementation shown in the drawings. Any changes made in accordance with the concept of the utility model, or modifications to equivalent embodiments with equivalent changes, which still do not exceed the spirit covered by the description and the drawings, should be within the protection scope of the utility model.

Claims

1. An XY axis automatic welding machine, characterized in that: include: A machine platform, wherein the machine platform is used to carry a workpiece; A welding mechanism, which is arranged on one side of the machine platform and is used to weld the workpiece on the machine platform; A walking mechanism, the walking mechanism is arranged on the machine platform, and the walking mechanism is used to move the workpiece so that the welding mechanism can respectively weld the preset points of the workpiece; the walking mechanism includes a first walking assembly and a second walking assembly; in: The first walking assembly is arranged on the machine platform, the second walking assembly is arranged on the first walking assembly, the first walking assembly is arranged along a first direction, the second walking assembly is arranged along a second direction, the workpiece is placed on the second walking assembly, the workpiece moves from a starting position to a terminal position of a preset path, and when the welding mechanism has welded all preset points of the workpiece, the workpiece is reset to the starting position; A material changing mechanism, wherein the material changing mechanism is arranged on one side of the machine platform, the material changing mechanism corresponds to the starting end position, and the material changing mechanism is used to replace the workpiece.

2. An XY axis automatic welding machine as claimed in claim 1, characterized in that: The material changing mechanism comprises a frame, a lifting assembly and a loading platform; in: The lifting assembly is arranged inside the frame, the loading platform is connected to the lifting assembly, the lifting assembly drives the loading platform to reciprocate up and down on the top of the frame, and the loading platform is used to load the workpiece.

3. An XY axis automatic welding machine as claimed in claim 2, characterized in that: The lifting assembly includes a telescopic member, a connecting rod, a connecting block and a first driving member. There are four telescopic members, which are respectively connected to the inner wall of the frame, one end of the four telescopic members is connected to the bottom of the loading platform, the other end of the four telescopic members is respectively connected to one of the connecting rods, and the other ends of the four connecting rods are respectively connected to the connecting blocks. The first driving member is arranged in the frame, and the first driving member is located above the connecting block.

4. An XY axis automatic welding machine as claimed in claim 3, characterized in that: A reinforcing beam is provided inside the frame, a mounting block is provided on the reinforcing beam, the middle section of the connecting rod is connected to the mounting block, the connecting rod is rotatable in the mounting block, sliding grooves are respectively provided at both ends of the connecting rod, and protrusions are respectively provided on one end of the telescopic member connected to the connecting rod and the connecting block, and the protrusions are movable in the sliding grooves.

5. The XY axis automatic welding machine as claimed in claim 2, characterized in that: The loading platform includes a loading platform body and a crossbeam, wherein the crossbeam is symmetrically arranged on both sides of the loading platform body along the second direction, and a first opening is formed between the crossbeams on both sides, and the first opening is used for the workpiece to move between the material changing mechanism and the walking mechanism.

6. An XY axis automatic welding machine as claimed in claim 5, characterized in that: At least two crossbeams are provided, and there is a preset distance between adjacent crossbeams on the same side. A plurality of first sliding members are spaced apart on opposite surfaces of the crossbeams on both sides.

7. The XY axis automatic welding machine as claimed in claim 5, characterized in that: The first walking assembly includes a first slide rail, a first slider, a first moving frame and a second driving member; in: The first slide rail is arranged on the machine platform along a first direction, the first slider is arranged on the first slide rail, the first movable frame is arranged on the first slider, the second driving member is arranged on one side of the frame along the first direction, the output end of the second driving member is connected to the first movable frame, and the second driving member drives the first movable frame to reciprocate on the first slide rail.

8. An XY axis automatic welding machine as claimed in claim 7, characterized in that: The second traveling assembly includes a second slide rail, a second slider, a second moving frame and a third driving member; in: The second slide rail is arranged on the first movable frame along the second direction, the second slider is arranged on the second slide rail, the second movable frame is arranged on the second slider, the third driving member is arranged on one side of the first movable frame along the second direction, the output end of the third driving member is connected to the second movable frame, and the third driving member drives the second movable frame to reciprocate on the second slide rail.

9. An XY axis automatic welding machine as claimed in claim 8, characterized in that: A second opening is formed on a side of the second movable frame close to the material changing mechanism, and the second opening corresponds to the first opening in size. The second movable frame is provided with a plurality of second sliding members for moving the workpiece.

10. The XY axis automatic welding machine according to claim 1, characterized in that: An operation panel is arranged on one side of the machine.

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