Draining basket rubber part tooling

Abstract

A kind of draining basket rubber piece tooling, including: rack, the rack is placed on plane;Supporting mechanism, the supporting mechanism is arranged on rack and is used to place rubber piece and support water basket handle;Pressing mechanism, the pressing mechanism is arranged on rack, and pressing mechanism cooperates with supporting mechanism to be used to press rubber piece on water basket handle.The utility model provides a kind of draining basket rubber piece tooling, it can replace manual assembly rubber piece, improve the assembly speed of rubber piece, improve the production efficiency of draining basket to a certain extent.

Description

Technical Field

[0001] This utility model belongs to the technical field of installation of drain basket rubber parts, specifically relating to a tooling for drain basket rubber parts. Background Technology

[0002] A drain basket is a common kitchen utensil used in daily life. (See also...) Figure 1 A drain basket typically consists of a basket body 41 and a basket handle 42. The basket body 41 and the basket handle 42 are integrally molded and made of metal or plastic materials. In order to improve the grip comfort and anti-slip properties of the basket handle 42, rubber parts 43 such as anti-slip rubber sleeves or anti-slip rubber blocks are usually installed on the basket handle 42. Therefore, the assembly of rubber parts 43 is one of the important processes in the production of drain baskets.

[0003] The assembly of the plastic part 43 relies on manual operation. Specifically, the assembler manually places the plastic part 43 on the preset position of the water basket handle 42, and then fixes the plastic part 43 to the water basket handle 42 by pressing or tapping it manually. The problem is that with the above assembly method, it is difficult for the assembler to control the assembly force. If the assembly force is too small, the plastic part 43 is easy to fall off the water basket handle 42. If the assembly force is too large, the plastic part 43 or the water basket handle 42 is easily deformed and damaged, resulting in unstable assembly quality of the plastic part 43 and affecting the product qualification rate. In addition, the assembler needs to spend a certain amount of time adjusting the assembly position of the plastic part 43 and pressing the plastic part 43. The slow speed and long time of manual assembly result in poor assembly efficiency of the plastic part 43, resulting in low production efficiency of the drain basket.

[0004] Therefore, further improvements are needed. Utility Model Content

[0005] The purpose of this utility model is to overcome at least one of the shortcomings of the prior art and provide a tooling for the rubber parts of a drain basket, which can replace manual assembly of rubber parts, increase the assembly speed of rubber parts, and improve the production efficiency of drain baskets to a certain extent.

[0006] To achieve the above objectives, the technical solution provided by this utility model embodiment is as follows:

[0007] A tooling for a drain basket, comprising:

[0008] A frame, which is placed on a flat surface;

[0009] A support mechanism is provided on the frame and is used to place the rubber parts and support the water basket handle;

[0010] A pressurizing mechanism is mounted on the frame and cooperates with a support mechanism to press the rubber parts firmly onto the water basket handle.

[0011] The frame includes a worktable, and the support mechanism and the pressurizing mechanism are horizontally adjustable and set on the worktable. The support mechanism consists of two sets and is arranged at intervals along the left and right directions of the worktable. The pressurizing mechanism consists of two sets and is located outside the two sets of support mechanisms, with its pressing end corresponding to the support end of the support mechanism. When the drain basket rubber part tooling is working, the distance between the two sets of support mechanisms is equivalent to the length of the water basket body.

[0012] The support mechanism includes a support plate disposed on a workbench. The support plate is provided with a support protrusion for supporting the rubber part, and a first positioning protrusion and a second positioning protrusion for positioning the rubber part on the support plate. The support protrusion is disposed on the top surface of the support plate and close to the water basket body. The first positioning protrusion and the second positioning protrusion are located outside the support protrusion and are disposed opposite to each other at the front and rear of the top surface of the support plate.

[0013] The vertical projection shape of the support protrusion is strip-shaped and extends along the length of the support plate. Its outer edge size is equivalent to the outer edge size of the plastic part. The vertical projection shape of the first positioning protrusion is square to restrict the movement of the plastic part away from the water basket body. The vertical projection shape of the second positioning protrusion is 7-shaped to restrict the movement of the plastic part away from the water basket body and / or along the rear side of the support plate.

[0014] The support mechanism also includes a support base, which is disposed between the support plate and the workbench. The outer edge dimension of the support base is equivalent to the outer edge dimension of the support plate, and the sum of the height dimensions of the support plate and the support base is greater than the height dimension of the water basket body.

[0015] The pressurizing mechanism includes a support frame, a pressurizing cylinder, and a pressing block component. The support frame is mounted on the workbench. The pressurizing cylinder is mounted vertically on the support frame with its movable end facing downwards. The pressing block component is mounted on the movable end of the pressurizing cylinder and is positioned corresponding to the support end of the support mechanism. The outer edge dimension of the pressing block component is equivalent to the outer edge dimension of the rubber part.

[0016] The pressurizing mechanism also includes a cylinder guide plate and a pressure block guide plate. The cylinder guide plate is located at the bottom of the fixed end of the pressurizing cylinder, and the pressure block guide plate is located at the top of the pressure block component. A guide structure is provided between the cylinder guide plate and the pressure block guide plate to guide the pressure block component to move along the height direction of the pressurizing mechanism.

[0017] The guiding structure includes a guide hole on the cylinder guide plate and a guide rod on the pressure block guide plate corresponding to the guide hole. The guide hole penetrates the cylinder guide plate along the height direction, and the guide rod extends upward from the pressure block guide plate. The guide rod extends into the guide hole and slides back and forth along the length direction of the guide rod, so that the pressure block component is guided to move along the height direction of the pressurizing mechanism.

[0018] The cylinder guide plate extends from the front and rear of the pressurizing mechanism. There are two guide holes, which are arranged at intervals along the length of the cylinder guide plate. The outer edge dimension of the pressure block guide plate is equivalent to the outer edge dimension of the pressure block component. There are two guide rods, which are arranged at intervals along the length of the pressure block guide plate.

[0019] The pressurizing mechanism also includes a support base, which is disposed between the mechanism support and the worktable.

[0020] The frame also includes support legs and a storage platform. There are four support legs, which are respectively located at the four corners of the workbench. The storage platform is located below the workbench and its four corners are connected to the four support legs.

[0021] The beneficial effects of this utility model are as follows:

[0022] This utility model, by adopting the above-mentioned technical solution for the tooling of the drain basket rubber parts, replaces the manual positioning and pressing assembly method of the rubber parts, reduces the time for adjusting the assembly position of the rubber parts and the time for pressing the rubber parts, improves the assembly speed of the rubber parts, and improves the production efficiency of the drain basket to a certain extent.

[0023] By adopting the above-mentioned technical solution for the tooling of the drain basket, the pressurizing structure can output appropriate and stable pressing force to the rubber parts, so that the rubber parts can be tightly attached to the handle of the drain basket. This avoids the rubber parts from falling off due to insufficient pressing force or the rubber parts or handle of the drain basket from deforming and being damaged due to excessive pressing force, thus ensuring the assembly quality of the rubber parts and improving the product qualification rate to a certain extent. Attached Figure Description

[0024] Figure 1 This is an exploded view of a drain basket according to an embodiment of the present invention.

[0025] Figure 2 This is a schematic diagram of the structure of a drain basket tooling according to an embodiment of the present invention.

[0026] Figure 3 This is an exploded view of the tooling for the drain basket rubber component according to an embodiment of the present invention.

[0027] Figure 4 This is an exploded view of the support mechanism according to an embodiment of the present invention.

[0028] Figure 5 This is an exploded view of the pressurization mechanism according to an embodiment of the present invention.

[0029] Figure 6 This is a schematic diagram of the frame structure according to an embodiment of the present invention.

[0030] Figure 7 This is a front view illustrating the first working process of a drain basket tooling according to an embodiment of the present invention.

[0031] Figure 8 This is a top view illustrating the first working process of a drain basket tooling according to an embodiment of the present invention.

[0032] Figure 9 This is a second working schematic front view of a tooling fixture for a drain basket according to an embodiment of the present invention.

[0033] Figure 10 This is a third working schematic front view of the tooling for the drain basket rubber component according to an embodiment of the present utility model. Detailed Implementation

[0034] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are some embodiments of this utility model, but not all embodiments.

[0035] See Figure 1-10This drain basket assembly includes a frame 1, a support mechanism 2, and a pressurizing mechanism 3. In this embodiment, the frame 1 includes a worktable 11 and can be placed on a flat surface such as a table or the ground, providing a stable support base for the drain basket assembly. The support mechanism 2 is located on the top of the worktable 11 and can be adjusted in the left-right direction along the worktable 11 and is fixed to the frame 1, allowing the drain basket assembly to adapt to the assembly of rubber parts 43 of different sized water basket bodies 41, thus improving the versatility of the drain basket assembly. Preferably, there are two sets of support mechanisms 2, arranged at intervals in the left-right direction along the worktable 11. When the drain basket assembly begins to assemble, the distance between the two sets of support mechanisms 2 is equal to or slightly greater than the length of the water basket body 41. Since conventional drain baskets have water basket handles 42 symmetrically distributed at both ends of the water basket body 41, the two sets of support mechanisms 2 can correspond to the positions of the water basket handles 42, ensuring that the assembly position of the rubber parts 43 is aligned with the water basket handles. 42. Preset position matching: The pressure mechanism 3 is set on the top of the workbench 11 and located outside the support mechanism 2. Its position can be adjusted in the left and right direction along the workbench 11 and it is fixed on the frame 1 so that the pressing end position of the pressure mechanism 3 matches the supporting end position of the support mechanism 2. When the drain basket rubber part tooling starts to assemble, the pressure mechanism 3 cooperates with the support mechanism 2 to press the rubber part 43 onto the drain basket handle 42. The two sets of pressure mechanisms 3 cooperate with the two sets of support mechanisms 2. When the drain basket handles 42 at both ends of the drain basket are assembled with the rubber part 43, they can receive uniform pressing pressure, avoiding deformation of the drain basket handle 42 or displacement of the rubber part 43 caused by unilateral pressure. By assembling the rubber part 43 onto the drain basket handle 42 through the drain basket rubber part tooling, the assembly method of manually positioning and pressing the rubber part 43 is replaced, which reduces the time for adjusting the assembly position of the rubber part 43 and the time for pressing the rubber part 43, improves the assembly speed of the rubber part 43, and improves the production efficiency of the drain basket to a certain extent.

[0036] By adopting the above-mentioned technical solution for the drain basket tooling, the pressurizing structure can output appropriate and stable pressing force to the rubber part 43, so that the rubber part 43 can be tightly attached to the water basket handle 42, avoiding the rubber part 43 from falling off due to insufficient pressing force or the rubber part 43 or water basket handle 42 from being deformed and damaged due to excessive pressing force, thus ensuring the assembly quality of the rubber part 43 and improving the product qualification rate to a certain extent.

[0037] Furthermore, in this embodiment, the support mechanism 2 includes a support plate 21. Specifically, the support plate 21 is elongated and mounted on the workbench 11 using a screw and nut fastening structure. The support plate 21 is provided with a support protrusion 211, a first positioning protrusion 212, and a second positioning protrusion 213. The support protrusion 211 is strip-shaped in its vertical projection and is located on the top surface of the support plate 21, close to the water basket body 41, providing a stable support reference for the plastic part 43. The outer edge dimension of the support protrusion 211 is equal to or slightly smaller than the outer edge dimension of the plastic part 43, ensuring sufficient contact between the plastic part 43 and the support protrusion 211, thus improving the support stability of the support protrusion 211. The first positioning protrusion 212 is square in its vertical projection and is located at the front of the top surface of the support plate 21 and outside the support protrusion 211. The first positioning protrusion 212 can restrict the movement of the plastic part 43 away from the water basket body 41, preventing the plastic part 43 from moving. The second positioning protrusion 213 is offset outwards. Its vertical projection shape is 7-shaped and it is located at the rear of the top surface of the support plate 21 and outside the support protrusion 211. The second positioning protrusion 213 can restrict the movement of the plastic part 43 in the direction away from the water basket body 41 and in the direction of the rear side of the support plate 21, so as to prevent the plastic part 43 from shifting outwards and backwards. The first positioning protrusion 212 and the second positioning protrusion 213 restrict the movement of the plastic part 43 from the front and rear directions, forming a front and rear constraint on the plastic part 43, preventing the plastic part 43 from slipping during placement or pressurization, and ensuring that the plastic part 43 is always in the preset assembly position. Through the support protrusion 211, the first positioning protrusion 212 and the second positioning protrusion 213, a visual placement reference can be provided for the assembly personnel to place the plastic part 43, so as to reduce the time for adjusting the assembly position of the plastic part 43 and improve the assembly efficiency of the plastic part 43, which can be understood by those skilled in the art.

[0038] Furthermore, the support mechanism 2 also includes a support base 22. Specifically, in this embodiment, the support base 22 is installed between the support plate 21 and the workbench surface 11 by a screw and nut fastening structure. The outer edge shape of the support base 22 is the same as that of the support plate 21, and the outer edge dimension of the support base 22 is equal to or slightly larger than that of the support plate 21. This can improve the support strength of the support mechanism 2 to a certain extent and reduce the occurrence of deformation of the support plate 21 due to pressure. The sum of the height dimensions of the support plate 21 and the support base 22 is greater than the height dimension of the water basket body 41, so that the water basket body 41 is in a suspended state when placed on the support mechanism 2. This avoids the water basket body 41 from contacting the workbench surface 11 during the assembly of the plastic part 43, which would cause scratches or deformation of the surface of the water basket body 41 due to contact with the workbench surface 11, or the plastic part 43 from being raised due to contact with the workbench surface 11. This can improve the assembly quality of the plastic part 43 to a certain extent, as can be understood by those skilled in the art.

[0039] Furthermore, in this embodiment, the pressurizing mechanism 3 includes a mechanism support 31, a pressurizing cylinder 32, and a pressing block component 33. Specifically, the bottom end of the mechanism support 31 is mounted on the workbench 11 by a screw and nut fastening structure. The pressurizing cylinder 32 is vertically arranged, and the fixed end of the pressurizing cylinder 32 is mounted on the top end of the mechanism support 31 by a screw and nut fastening structure. The movable end of the pressurizing cylinder 32 faces downward and moves back and forth along the height direction of the pressurizing mechanism 3. It serves as a power source to provide a constant output pressure for the drain basket rubber parts tooling. The pressing block component 33 is preferably a pressing block and is mounted on the pressurizing cylinder 32 by a screw and nut fastening structure. The pressure block component 33 is positioned on the movable end and corresponds to the support end of the support mechanism 2. The outer edge shape of the pressure block component 33 is the same as the outer edge shape of the rubber part 43. The outer edge size of the pressure block component 33 is equal to or slightly larger than the outer edge size of the rubber part 43, so that the pressure block component 33 and the rubber part 43 can make full contact, and the pressing pressure can evenly cover the entire contact surface of the rubber part 43, avoiding local pressure concentration that could cause the rubber part 43 to crack or the water basket handle 42 to deform. Through the above technical solution, the cylinder drive replaces manual pressing, thereby reducing the pressing time of the rubber part 43 and improving the assembly efficiency of the rubber part 43, which can be understood by those skilled in the art.

[0040] Furthermore, the pressurizing mechanism 3 also includes a cylinder guide plate 34 and a pressure block guide plate 35. A guide structure is provided between the cylinder guide plate 34 and the pressure block guide plate 35. Specifically, in this embodiment, the cylinder guide plate 34 extends from the front and rear direction of the pressurizing mechanism 3 and is installed at the bottom of the fixed end of the pressurizing cylinder 32 through a screw and thread hole fastening structure. The pressure block guide plate 35 is installed on the top of the pressure block component 33 through a screw and thread hole fastening structure. The outer edge shape of the pressure block guide plate 35 is the same as the outer edge shape of the pressure block component 33, and its outer edge size is equal to or slightly smaller than the outer edge size of the pressure block component 33. This can increase the mechanical rigidity of the pressure block component 33 to a certain extent and reduce the deformation of the pressure block component 33 under pressure.

[0041] A guide structure is provided between the cylinder guide plate 34 and the pressure block guide plate 35. Specifically, in this embodiment, the guide structure includes a guide hole 341 and a guide rod 351. The guide hole 341 is disposed on the cylinder guide plate 34 and penetrates the cylinder guide plate 34 along the height direction. The guide rod 351 is disposed on the pressure block guide plate 35 and extends upward from the pressure block guide plate 35. The guide hole 341 and the guide rod 351 are correspondingly disposed. When the pressure block component 33 is installed on the movable end of the pressurizing cylinder 32, the guide rod 351 extends into the guide hole 341. When pressurization is applied... When the movable end of the cylinder 32 slides back and forth along the height direction, the guide rod 351 slides back and forth along its length direction, causing the pressure block component 33 to move along the height direction of the pressurizing mechanism 3. Through the above technical solution, the pressure block is prevented from tilting and pressing the rubber part 43 due to the shaking of the pressurizing cylinder 32 during operation. This ensures that the pressing pressure is applied vertically to the rubber part 43 and further makes the surface of the rubber part 43 evenly stressed. The guide structure makes the movement of the pressure block component 33 more stable and avoids the rubber part 43 from being displaced due to uneven stress during the pressurization process. This is understandable to those skilled in the art.

[0042] In this embodiment, there are two guide holes 341 arranged at intervals along the length of the cylinder guide plate 34, and two guide rods 351 arranged at intervals along the length of the pressure block guide plate 35. Through the above technical solution, a double guide structure is formed between the cylinder guide plate 34 and the pressure block guide plate 35, which further improves the guiding movement effect of the pressure block component 33 and makes the movement of the pressure block component 33 more stable. This is understandable to those skilled in the art.

[0043] Furthermore, the pressurizing mechanism 3 also includes a support base 36. Specifically, in this embodiment, the support base 36 is installed between the mechanism support 31 and the worktable 11 by a screw and nut fastening structure. By replacing the support base 36 with different thicknesses, the initial distance between the pressing block component 33 and the rubber parts 43 with different thicknesses is made more reasonable. This avoids the pressing cylinder 32's moving end stroke being too short, resulting in excessive pressing force on the rubber parts 43 and damaging them, or the pressing cylinder 32's moving end stroke being too long, resulting in insufficient pressing force on the rubber parts 43 and making them easy to loosen. This allows the pressurizing mechanism 3 to adapt to rubber parts 43 with different thicknesses, improving the versatility of the pressurizing mechanism 3. The outer edge dimension of the support base 36 is slightly larger than the outer edge dimension of the mechanism support 31, increasing the contact area between the mechanism support 31 and the worktable 11 and improving the stability of the mechanism support 31 installed on the worktable 11. This is understandable to those skilled in the art.

[0044] Furthermore, the frame 1 also includes support legs 12 and a storage platform 13. Specifically, in this embodiment, there are four support legs 12, which are respectively set on the workbench 11 and located at the four corners of the workbench 11. The four support legs 12 form a four-point support structure, which distributes the weight of the drain basket rubber parts tooling and the pressing reaction force. The storage platform 13 is set below the workbench 11 and can be used to place the rubber parts 43, tools or drain basket semi-finished products, reducing the time wasted by assembly personnel when picking up and putting down materials, and further improving the assembly efficiency of the rubber parts 43. The four corners of the storage platform 13 are respectively connected to the four support legs 12, so that the overall structure of the frame 1 forms a frame structure, which improves the overall mechanical strength of the frame 1 and improves the resistance to deformation. In particular, the structural stability of the frame 1 can still be ensured under multiple pressure operations of the drain basket rubber parts tooling, which can extend the service life of the frame 1 to a certain extent. This is understood by those skilled in the art.

[0045] The above describes the preferred embodiments of this utility model, illustrating and describing its basic principles, main features, and advantages. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made without departing from the spirit and scope of this utility model, and all such changes and modifications fall within the scope of protection of this utility model as defined by the appended claims and their equivalents.

Claims

1. A tooling for a drain basket, characterized in that, include: A frame (1) is placed on a plane; Support mechanism (2), which is mounted on frame (1) and used to place rubber parts (43) and support water basket handle (42); The pressurizing mechanism (3) is mounted on the frame (1) and cooperates with the support mechanism (2) to press the rubber part (43) onto the water basket handle (42).

2. The tooling for the drain basket rubber parts according to claim 1, characterized in that, The frame (1) includes a worktable (11). The support mechanism (2) and the pressurizing mechanism (3) are horizontally adjustable and set on the worktable (11). The support mechanism (2) consists of two sets and is arranged at intervals along the left and right directions of the worktable (11). The pressurizing mechanism (3) consists of two sets and is located outside the two sets of support mechanisms (2), and its pressing end corresponds to the support end of the support mechanism (2). When the drain basket rubber part tooling is working, the distance between the two sets of support mechanisms (2) is equivalent to the length dimension of the water basket body (41).

3. The tooling for the drain basket rubber parts according to claim 2, characterized in that, The support mechanism (2) includes a support plate (21), which is disposed on the workbench (11). The support plate (21) is provided with a support protrusion (211) for supporting the rubber part (43), and a first positioning protrusion (212) and a second positioning protrusion (213) for positioning the rubber part (43) on the support plate (21). The support protrusion (211) is disposed on the top surface of the support plate (21) and close to the water basket body (41). The first positioning protrusion (212) and the second positioning protrusion (213) are located outside the support protrusion (211) and are disposed opposite to each other on the front and rear parts of the top surface of the support plate (21).

4. The tooling for the drain basket rubber parts according to claim 3, characterized in that, The vertical projection shape of the support protrusion (211) is strip-shaped and extends along the length of the support plate (21). Its outer edge size is equivalent to the outer edge size of the rubber part (43). The vertical projection shape of the first positioning protrusion (212) is square to restrict the movement of the rubber part (43) away from the water basket body (41). The vertical projection shape of the second positioning protrusion (213) is 7-shaped to restrict the movement of the rubber part (43) away from the water basket body (41) and / or along the rear side of the support plate (21).

5. The tooling for the drain basket rubber parts according to claim 3, characterized in that, The support mechanism (2) also includes a support base (22), which is located between the support plate (21) and the workbench (11). The outer edge dimension of the support base (22) is equivalent to the outer edge dimension of the support plate (21), and the sum of the height dimensions of the support plate (21) and the support base (22) is greater than the height dimension of the water basket body (41).

6. The tooling for the drain basket rubber parts according to claim 2, characterized in that, The pressurizing mechanism (3) includes a mechanism support (31), a pressurizing cylinder (32), and a pressing block component (33). The mechanism support (31) is set on the workbench (11). The pressurizing cylinder (32) is set vertically on the mechanism support (31) with its movable end facing down. The pressing block component (33) is set on the movable end of the pressurizing cylinder (32) and is set corresponding to the support end of the support mechanism (2). The outer edge dimension of the pressing block component (33) is equivalent to the outer edge dimension of the rubber part (43).

7. The tooling for the drain basket rubber parts according to claim 6, characterized in that, The pressurizing mechanism (3) also includes a cylinder guide plate (34) and a block guide plate (35). The cylinder guide plate (34) is located at the bottom of the fixed end of the pressurizing cylinder (32), and the block guide plate (35) is located at the top of the block component (33). A guide structure is provided between the cylinder guide plate (34) and the block guide plate (35). The block component (33) is guided to move along the height direction of the pressurizing mechanism (3) through the guide structure. The guiding structure includes a guide hole (341) on the cylinder guide plate (34) and a guide rod (351) on the pressure block guide plate (35) corresponding to the guide hole (341). The guide hole (341) passes through the cylinder guide plate (34) along the height direction. The guide rod (351) extends upward from the pressure block guide plate (35). The guide rod (351) extends into the guide hole (341) and slides back and forth along the length direction of the guide rod (351), so that the pressure block component (33) is guided to move along the height direction of the pressurizing mechanism (3).

8. The tooling for the drain basket rubber parts according to claim 7, characterized in that, The cylinder guide plate (34) extends from the pressurizing mechanism (3) in the front and rear directions. There are two guide holes (341) and they are arranged at intervals along the length of the cylinder guide plate (34). The outer edge size of the pressure block guide plate (35) is equivalent to the outer edge size of the pressure block component (33). There are two guide rods (351) and they are arranged at intervals along the length of the pressure block guide plate (35).

9. The tooling for the drain basket rubber parts according to claim 6, characterized in that, The pressurizing mechanism (3) also includes a support base (36), which is disposed between the mechanism support (31) and the worktable (11).

10. The tooling for the drain basket rubber parts according to claim 2, characterized in that, The frame (1) also includes support legs (12) and a storage platform (13). There are four support legs (12) and they are respectively located on the four corners of the workbench (11). The storage platform (13) is located below the workbench (11) and its four corners are respectively connected to the four support legs (12).

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