Automatic feeding and discharging mechanism for large saw blades

Abstract

The utility model provides a large saw blade automatic feeding and discharging mechanism which comprises a guide rail arranged on one side of an electric discharge machine, the electric discharge machine comprises a workbench, and supporting plates used for supporting saw blade bodies are installed in the workbench in an annular array mode. And the mounting seat is slidably mounted at the top of the guide rail in the horizontal direction. When saw blade feeding and discharging are carried out in the workbench, through cooperation of the first motor, the driving mechanism, the electric cylinder and the driving assembly, feeding can be carried out on saw blade bodies towards the interior of the workbench, and discharging operation can be carried out on the machined saw blade bodies in the workbench; the operation mode that workers manually take saw blade bodies and insert the saw blade bodies into a workbench is replaced, the situation that the feeding and discharging difficulty of the saw blade bodies is increased due to the fact that the operable space in the workbench is small when the saw blade bodies with the large outer diameter sizes are fed is effectively avoided, the feeding and discharging difficulty of the saw blade bodies is reduced, and therefore the working efficiency is improved; meanwhile, the physical strength of workers is saved.

Description

TECHNICAL FIELD

[0001] The utility model relates to a saw blade processing equipment technical field, concretely relates to a large -scale saw blade automatic feeding and discharging mechanism. BACKGROUND

[0002] Saw blade is a kind of tool for cutting material, is widely used in wood processing, metal processing, stone cutting, plastic processing and other fields;In order to solve the thermal expansion problem caused by frictional heat generation during the high-speed rotation cutting of saw blade, and improve the stability, cutting accuracy and service life of saw blade, when saw blade is processed, the expansion groove is usually machined on saw blade by using electric spark machine;

[0003] The drawings of the specification Figure 9 In the figure, a kind of structure schematic diagram of saw blade electric spark processing equipment in prior art is shown, including base, top fixed mounting of base is the workbench of top opening, displacement mechanism is installed on the top of base and located at the one side of workbench, the movable end of displacement mechanism is installed with the electric spark machining head that can extend to the inside of accommodating cavity, the vertical fixed positioning shaft of symmetry is fixed in the middle position of workbench, the support plate of horizontal shape is fixed and installed in the form of annular array on the support seat and located at the outside of positioning shaft, and the positioning mechanism for positioning saw blade is installed in the workbench;When using, make the positioning hole reserved on saw blade be sleeved on the outside of two positioning shafts, then use positioning mechanism to position saw blade, displace electric spark machining head by displacement mechanism, i.e. the expansion groove of saw blade can be machined, and the positioning effect of saw blade is good during the cooperation of two positioning shafts and positioning mechanism, the machining precision of saw blade is improved;

[0004] At present, when using electric spark processing machine to process expansion groove of saw blade, the traditional feeding and discharging mode is mostly to use artificial to move saw blade to carry out feeding and discharging operation, and since electric spark processing machine needs to immerse saw blade completely into processing liquid in the workbench of electric spark processing machine to process expansion groove of saw blade, when feeding saw blade, staff needs to manually take the saw blade hung on the side rack of electric spark machine, and the positioning hole reserved on saw blade is sleeved on the outside of two positioning shafts, since the space in the workbench of electric spark processing machine is effective, so that it is inconvenient to feed saw blade, especially when feeding the saw blade with larger outer diameter, further reduce the operable space in the workbench, so that the feeding and discharging difficulty of saw blade is greatly increased, resulting in the reduction of work efficiency, and manually moving saw blade to carry out feeding and discharging greatly wastes staff's physical strength and increases labor intensity;

[0005] Therefore, the present application provides a large-scale saw blade automatic feeding and discharging mechanism. Utility model content

[0006] To address the shortcomings of existing technologies, this utility model provides an automatic loading and unloading mechanism for large saw blades, which solves the problems mentioned in the background art.

[0007] To achieve the above objectives, this utility model provides the following technical solution:

[0008] An automatic loading and unloading mechanism for large saw blades includes:

[0009] The guide rail is located on one side of the EDM machine, which includes a worktable. Inside the worktable, support plates for supporting the saw blade body are installed in a circular array.

[0010] The mounting base is horizontally slidably mounted on the top of the guide rail. A drive mechanism that acts on the mounting base is mounted on the guide rail to make the mounting base slide on the guide rail or stop sliding.

[0011] A rotating shaft is vertically mounted on a mounting base. A drive assembly for rotating the shaft is mounted on the mounting base. A mounting block is fixedly mounted on the top of the rotating shaft. A horizontal rotating shaft is rotatably mounted on the mounting block. A crossbar is fixedly connected to one end of the rotating shaft. A motor for rotating the shaft is fixedly mounted on the mounting block. Telescopic rods are symmetrically fixedly mounted on the bottom of the crossbar. Fixed seats are connected to the bottom of the two telescopic rods. An electric cylinder connected to the fixed seat is fixedly mounted on the crossbar.

[0012] There are two uprights, which are symmetrically installed at the bottom of the fixed base. Each upright has a fixed plate fixedly installed on the side of the uprights that are close to each other. A positioning mechanism is installed on the uprights. A control component is installed in the middle of the bottom of the fixed base. The control component is electrically connected to the two positioning mechanisms. When both fixed plates are in contact with the top of the saw blade body, the control component controls the two positioning mechanisms to move, so as to position the saw blade body through the two positioning mechanisms.

[0013] Furthermore: the drive mechanism includes a threaded column that is horizontally rotatably mounted on a guide rail, the threaded column being threadedly connected to a mounting base, and an electric motor for driving the threaded column to rotate is fixedly mounted on the guide rail;

[0014] The drive assembly includes a second electric motor fixedly mounted on a mounting base, and the output shaft of the second electric motor is connected to a rotating shaft via a bevel gear assembly.

[0015] Furthermore: the positioning mechanism includes a connecting block installed on one side of the upright, a positioning plate hinged to the bottom of the connecting block, a second motor for driving the positioning plate to rotate fixedly installed on the connecting block, and a protective shell sleeved on the outside of the second motor fixedly installed on the connecting block.

[0016] Furthermore, rubber plates are fixedly installed on the sides of the positioning plate and the fixing plate that are close to each other.

[0017] Furthermore: the control component includes a housing fixedly installed at the bottom of the fixed base, a connecting rod movably passing through the bottom of the housing, an abutment block fixedly installed at the bottom of the connecting rod, a spring fixedly installed on the inner top wall of the housing and connected to the connecting rod, a first contact block fixedly installed on the inner top wall of the housing and inside the spring, and a second contact block fixedly installed on the top of the connecting rod and inside the spring. When the second contact block contacts the first contact block, the second contact block is electrically connected to the first contact block and the second motor.

[0018] Furthermore: a limiting frame is integrally formed on the side of the upright away from the fixed plate, the connecting block moves vertically through the limiting frame, and a vertical adjusting rod is rotatably installed on the upright, the adjusting rod threaded through the top of the connecting block.

[0019] Furthermore, a groove is provided on one side of the connecting block, and a scale is fixedly installed on the connecting block and located in the groove.

[0020] Furthermore: the two uprights are symmetrically slidably mounted on the bottom of the fixed base, and a horizontally oriented bidirectional threaded rod is rotatably mounted on the fixed base, with the bidirectional threaded rod being threadedly connected to both uprights.

[0021] This utility model provides an automatic loading and unloading mechanism for large saw blades. Compared with the prior art, it has the following advantages:

[0022] 1. When loading and unloading saw blades into the workbench, the saw blade body can be loaded into the workbench and the finished saw blade body unloaded from the workbench through the cooperation of motor 1, drive mechanism, electric cylinder and drive assembly. This replaces the manual operation of the operator to pick up the saw blade body and insert it into the workbench. It effectively avoids the situation where the working space inside the workbench is small when loading saw blade bodies with large outer diameter, which increases the difficulty of loading and unloading saw blade bodies. It reduces the difficulty of loading and unloading saw blade bodies, thereby improving work efficiency, saving the operator's physical strength and reducing the amount of labor.

[0023] 2. By utilizing the design of the rubber plate, when the saw blade body is clamped and positioned by the positioning plate and the fixing plate, the hard friction between the positioning plate and the fixing plate and the saw blade body is effectively avoided, which would cause wear on the surface of the saw blade body.

[0024] 3. By utilizing the vertically movable connecting block that passes through the limiting frame, the distance between the positioning plate and the fixed plate can be adjusted according to the thickness of the saw blade body, thereby achieving the positioning effect for saw blade bodies of different thicknesses and improving the applicability of this equipment. Attached Figure Description

[0025] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0026] Figure 1 A three-dimensional structural schematic diagram of the present invention is shown;

[0027] Figure 2 A schematic diagram of the installation structure of the control component of this utility model is shown;

[0028] Figure 3 This utility model illustrates Figure 2 Enlarged view of point A in the middle;

[0029] Figure 4 A schematic diagram of the installation structure of the connecting block of this utility model is shown;

[0030] Figure 5 A schematic diagram of the installation structure of the scale of this utility model is shown;

[0031] Figure 6 A schematic diagram of the installation structure of the positioning mechanism of this utility model is shown;

[0032] Figure 7 A schematic diagram of the installation structure of this utility model is shown;

[0033] Figure 8 The circuit diagram of the second contact block, the first contact block, and the second motor of this invention is shown.

[0034] Figure 9 This diagram illustrates the structure of a prior art saw blade electrical discharge machining (EDM) device.

[0035] The diagram shows: 1. Guide rail; 11. Drive mechanism; 111. Threaded column; 112. Motor 1; 2. Mounting base; 21. Drive assembly; 211. Motor 2; 212. Bevel gear assembly; 3. Rotating shaft; 31. Electric cylinder; 32. Mounting block; 33. Rotating shaft; 34. Crossbar; 341. Telescopic rod; 342. Fixed base; 35. Motor 1; 4. Upright pole; 41. Fixing plate; 42. Limiting frame; 43. Adjustment... 5. Section rod; 5. Positioning mechanism; 51. Connecting block; 511. Groove; 512. Scale; 52. Positioning plate; 53. Motor II; 54. Protective shell; 6. Control component; 61. Housing; 62. Connecting rod; 63. Abutment block; 64. Spring; 65. First contact block; 66. Second contact block; 7. Rubber plate; 8. Bidirectional threaded rod; 9. EDM machine; 91. Workbench; 92. Saw blade body; 93. Support plate. Detailed Implementation

[0036] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions in the embodiments of this utility model are described clearly and completely. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0037] Example 1

[0038] To address the technical problems in the background section, the following is provided: A large-scale automatic saw blade loading and unloading mechanism.

[0039] Combination Figures 1-8 As shown, the present invention provides an automatic loading and unloading mechanism for large saw blades, comprising:

[0040] The guide rail 1 is arranged on one side of the EDM machine 9. The EDM machine 9 includes a worktable 91, and a support plate 93 for supporting the saw blade body 92 is installed in a circular array inside the worktable 91.

[0041] Mounting base 2 is horizontally slidably mounted on top of guide rail 1. A drive mechanism 11 is mounted on guide rail 1 that acts on mounting base 2, which is used to make mounting base 2 slide on guide rail 1 or stop sliding.

[0042] A rotating shaft 3 is vertically mounted on a mounting base 2. A drive assembly 21 for driving the rotating shaft 3 to rotate is mounted on the mounting base 2. A mounting block 32 is fixedly mounted on the top of the rotating shaft 3. A horizontal rotating shaft 33 is rotatably mounted on the mounting block 32. A crossbar 34 is fixedly connected to one end of the rotating shaft 33. A motor 35 for driving the rotating shaft 33 to rotate is fixedly mounted on the mounting block 32. Telescopic rods 341 are symmetrically fixedly mounted on the bottom of the crossbar 34. A fixed base 342 is connected to the bottom of the two telescopic rods 341. An electric cylinder 31 connected to the fixed base 342 is fixedly mounted on the crossbar 34.

[0043] There are two uprights 4, which are symmetrically installed at the bottom of the fixed base 342. The two uprights 4 are fixedly installed on the side of each upright that is close to each other. The uprights 4 are equipped with positioning mechanisms 5. The fixed base 342 is equipped with a control component 6 at the bottom center. The control component 6 is electrically connected to the two positioning mechanisms 5. When the two fixed plates 41 are in contact with the top of the saw blade body 92, the control component 6 controls the two positioning mechanisms 5 to move, so as to position the saw blade body 92 through the two positioning mechanisms 5.

[0044] During use, when loading the saw blade body 92, the motor 35 causes the rotating shaft 33 to rotate on the mounting block 32, making the telescopic rod 341 horizontal. The drive assembly 21 causes the rotating shaft 3 to rotate on the mounting base 2, positioning the fixed base 342 on the side of the telescopic rod 341 closer to the material rack. With the cooperation of the drive mechanism 11, the mounting base 2 slides on the guide rail 1, bringing the fixed base 342 close to the saw blade to be loaded. The operator manually picks up the saw blade and positions it between the two uprights 4 and in contact with the fixed plate 41. At this time, the control assembly 6 controls the two sets of positioning mechanisms 5 to operate. Positioning mechanism 5 positions the saw blade body 92. Then, through the cooperation of motor 35, drive mechanism 11, and drive assembly 21, the saw blade body 92 is positioned directly above the worktable 91. Electric cylinder 31 then moves the fixed seat 342 downwards, thus inserting the saw blade body 92 into the worktable 91. At this point, the positioning mechanism 5 is removed, allowing the saw blade body 92 to fall onto multiple support plates 93, achieving the loading effect. Conversely, when unloading the saw blade body 92, the motor 35, drive mechanism 11, and drive assembly 21 work together to position the saw blade body 92 directly above the worktable 91. The cooperation of the drive assembly 21 and the fixed plate 41 allows the two fixed plates 41 to fit against the saw blade body 92. The control assembly 6 controls the two sets of positioning mechanisms 5 to position the saw blade body 92. Through the cooperation of the motor 35, drive mechanism 11, electric cylinder 31 and drive assembly 21, the processed saw blade body 92 can be moved to the external material rack. At this time, the operator can transfer the saw blade body 92 onto the material rack. Through the design of the upright 4, fixed plate 41, positioning mechanism 5 and control assembly 6, when loading and unloading the saw blade into the worktable 91, the motor 35 and drive mechanism 11... The electric cylinder 31 and the drive assembly 21 work together to feed the saw blade body 92 into the workbench 91 and to unload the saw blade body 92 that has been processed in the workbench 91. This replaces the manual operation of the operator to pick up the saw blade body 92 and insert it into the workbench 91. It effectively avoids the situation where the working space in the workbench 91 is small when feeding saw blade bodies with large outer diameters, which would increase the difficulty of loading and unloading the saw blade body 92. This reduces the difficulty of loading and unloading the saw blade body 92, thereby improving work efficiency and saving the operator's physical strength and reducing the amount of labor.

[0045] Example 2

[0046] like Figures 1-8 As shown, based on the above embodiments, this embodiment further provides the following:

[0047] In this embodiment, the driving mechanism 11 includes a threaded post 111 that is horizontally rotatably mounted on the guide rail 1. The threaded post 111 is threadedly connected to the mounting base 2. A motor 112 for driving the threaded post 111 to rotate is fixedly mounted on the guide rail 1. In use, the motor 112 is turned on and the output shaft of the motor 112 rotates, thereby driving the threaded post 111 to rotate on the guide rail 1 and driving the mounting base 2 to slide on the guide rail 1, which is easy to control.

[0048] The drive assembly 21 includes a second electric motor 211 fixedly mounted on the mounting base 2. The output shaft of the second electric motor 211 is connected to the rotating shaft 3 through a bevel gear assembly 212. Specifically, the bevel gear assembly 212 includes two meshing bevel gears. One bevel gear is coaxially fixed to the rotating shaft 3, and the other bevel gear is coaxially fixed to the output shaft of the second electric motor 211. In use, the second electric motor 211 is turned on, and the output shaft of the second electric motor 211 rotates, thereby driving the rotating shaft 3 to rotate on the mounting base 2 through the bevel gear assembly 212, which is easy to control.

[0049] In this embodiment, the positioning mechanism 5 includes a connecting block 51 installed on one side of the upright 4. A positioning plate 52 is hinged to the bottom of the connecting block 51. A second motor 53 for driving the positioning plate 52 to rotate is fixedly installed on the connecting block 51. Specifically, when both fixing plates 41 are in contact with the top of the saw blade body 92, the control component 6 is electrically connected to the second motor 53. At this time, the control component 6 controls the second motor 53 to work so that the positioning plate 52 rotates on the connecting block 51 to a horizontal state. In use, when loading and unloading the saw blade body 92, the two fixing plates 51 rotate to a horizontal state. When the positioning plate 41 is in contact with the top of the saw blade body 92, the control motor 53 operates to rotate the positioning plate 52 on the connecting block 51 to a horizontal state, so that the positioning plate 52 abuts against the bottom of the saw blade body 92, thereby achieving the positioning effect of the saw blade body 92. A protective shell 54 is fixedly installed on the connecting block 51 and sleeved on the outside of the motor 53. The contact surface between the protective shell 54 and the connecting block 51 is provided with a rubber pad. Through the design of the protective shell 54, the contact surface between the protective shell 54 and the connecting block 51 is provided with a rubber pad, thereby achieving the sealing and protection effect of the motor 53.

[0050] In this embodiment, rubber plates 7 are fixedly installed on the sides of the positioning plate 52 and the fixing plate 41 that are close to each other. By utilizing the design of the rubber plates 7, when the saw blade body 92 is clamped and positioned by the positioning plate 52 and the fixing plate 41, hard friction between the positioning plate 52 and the fixing plate 41 and the saw blade body 92 is effectively avoided, which would cause wear on the surface of the saw blade body 92.

[0051] Example 3

[0052] like Figures 1-8As shown, based on the above embodiments, this embodiment further provides the following:

[0053] In this embodiment, the control component 6 includes a housing 61 fixedly installed at the bottom of the fixed base 342. A connecting rod 62 movably passes through the bottom of the housing 61. An abutment block 63 is fixedly installed at the bottom of the connecting rod 62. A spring 64, which is fixedly connected to the connecting rod 62, is fixedly installed on the inner top wall of the housing 61. A first contact block 65 is fixedly installed on the inner top wall of the housing 61 and inside the spring 64. A second contact block 66 is fixedly installed on the top of the connecting rod 62 and inside the spring 64. When the second contact block 66 contacts the first contact block 65, the second contact block 66, the first contact block 65, and the motor 53 are electrically connected. In use, the... When the electric cylinder 31 moves the fixed seat 342 closer to the saw blade body 92, so that the rubber plates 7 on the two fixed plates 41 come into contact with the saw blade body 92, the abutment block 63 first contacts the saw blade body 92. When the abutment block 63 contacts the saw blade body 92, under the reverse force, it pushes the connecting rod 62 to move into the housing 61, and the second contact block 66 moves closer to the first contact block 65. When the second contact block 66 contacts the first contact block 65, the second contact block 66, the first contact block 65 and the second motor 53 are electrically connected, thereby controlling the second motor 53 to rotate the positioning plate 52 on the connecting block 51 to a horizontal state.

[0054] In this embodiment, a limiting frame 42 is integrally formed on the side of the upright 4 away from the fixed plate 41. The connecting block 51 moves vertically through the limiting frame 42. Specifically, the outer wall of the connecting block 51 and the inner wall of the limiting frame 42 are in contact with each other. A vertical adjusting rod 43 is rotatably installed on the upright 4. The adjusting rod 43 is threaded through the top of the connecting block 51. By utilizing the vertical movement of the connecting block 51 through the limiting frame 42, the adjusting rod 43 can be rotated to drive the connecting block 51 to slide vertically within the limiting frame 42, thereby adjusting the distance between the positioning plate 52 and the fixed plate 41. This allows the distance between the positioning plate 52 and the fixed plate 41 to be adjusted according to the thickness of the saw blade body 92, achieving the positioning effect for saw blade bodies 92 of different thicknesses and improving the applicability of this equipment.

[0055] In this embodiment, a groove 511 is provided on one side of the connecting block 51, and a scale 512 is fixedly installed on the connecting block 51 and located in the groove 511. Through the design of the scale 512, when the connecting block 51 moves vertically within the limiting frame 42, the scale 512 moves synchronously. Thus, based on the corresponding size change of the scale 512 and the top of the limiting frame 42, the displacement distance of the connecting block 51 within the limiting frame 42 can be known, which facilitates the adjustment of the position of the connecting block 51 according to the thickness of the saw blade body 92, making it convenient for workers to use.

[0056] In this embodiment, the two uprights 4 are symmetrically slidably mounted on the bottom of the fixed base 342. A horizontally oriented bidirectional threaded rod 8 is rotatably mounted on the fixed base 342. The bidirectional threaded rod 8 is threadedly connected to both uprights 4. Utilizing the special design of the two uprights 4 symmetrically sliding on the bottom of the fixed base 342, in use, rotating the bidirectional threaded rod 8 can cause the two uprights 4 to slide in opposite directions at the bottom of the fixed base 342, moving closer or further apart, thereby adjusting the distance between the two uprights 4 and thus adjusting the distance between the two connecting blocks 51. This allows the distance between the two connecting blocks 51 to be adjusted according to the outer diameter of the saw blade body 92, further improving the applicability of this equipment.

[0057] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0058] The above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model.

Claims

1. An automatic loading and unloading mechanism for large saw blades, characterized in that: include: The guide rail is located on one side of the EDM machine, which includes a worktable. Inside the worktable, support plates for supporting the saw blade body are installed in a circular array. The mounting base is horizontally slidably mounted on the top of the guide rail. A drive mechanism that acts on the mounting base is mounted on the guide rail to make the mounting base slide on the guide rail or stop sliding. A rotating shaft is vertically mounted on a mounting base. A drive assembly for rotating the shaft is mounted on the mounting base. A mounting block is fixedly mounted on the top of the rotating shaft. A horizontal rotating shaft is rotatably mounted on the mounting block. A crossbar is fixedly connected to one end of the rotating shaft. A motor for rotating the shaft is fixedly mounted on the mounting block. Telescopic rods are symmetrically fixedly mounted on the bottom of the crossbar. Fixed seats are connected to the bottom of the two telescopic rods. An electric cylinder connected to the fixed seat is fixedly mounted on the crossbar. There are two uprights, which are symmetrically installed at the bottom of the fixed base. Each upright has a fixed plate fixedly installed on the side of the uprights that are close to each other. A positioning mechanism is installed on the uprights. A control component is installed in the middle of the bottom of the fixed base. The control component is electrically connected to the two positioning mechanisms. When both fixed plates are in contact with the top of the saw blade body, the control component controls the two positioning mechanisms to move, so as to position the saw blade body through the two positioning mechanisms.

2. The automatic loading and unloading mechanism for large saw blades according to claim 1, characterized in that: The driving mechanism includes a threaded column that is horizontally rotatably mounted on a guide rail. The threaded column is threadedly connected to a mounting base. An electric motor for driving the threaded column to rotate is fixedly mounted on the guide rail. The drive assembly includes a second electric motor fixedly mounted on a mounting base, and the output shaft of the second electric motor is connected to a rotating shaft via a bevel gear assembly.

3. The automatic loading and unloading mechanism for large saw blades according to claim 2, characterized in that: The positioning mechanism includes a connecting block installed on one side of the pole, a positioning plate hinged to the bottom of the connecting block, a second motor for driving the positioning plate to rotate fixedly installed on the connecting block, and a protective shell sleeved on the outside of the second motor fixedly installed on the connecting block.

4. The automatic loading and unloading mechanism for large saw blades according to claim 3, characterized in that: Rubber plates are fixedly installed on the sides of the positioning plate and the fixing plate that are close to each other.

5. The automatic loading and unloading mechanism for large saw blades according to claim 2, characterized in that: The control assembly includes a housing fixedly installed at the bottom of the fixed base. A connecting rod extends through the bottom of the housing. An abutment block is fixedly installed at the bottom of the connecting rod. A spring fixedly connected to the connecting rod is fixedly installed on the top wall of the housing. A first contact block is fixedly installed on the top wall of the housing and inside the spring. A second contact block is fixedly installed on the top of the connecting rod and inside the spring. When the second contact block contacts the first contact block, the second contact block is electrically connected to the first contact block and the second motor.

6. The automatic loading and unloading mechanism for large saw blades according to claim 3, characterized in that: The side of the upright pole away from the fixed plate is integrally formed with a limiting frame. The connecting block moves vertically through the limiting frame. A vertical adjusting rod is rotatably installed on the upright pole, and the adjusting rod is threaded through the top of the connecting block.

7. The automatic loading and unloading mechanism for large saw blades according to claim 6, characterized in that: A groove is provided on one side of the connecting block, and a scale is fixedly installed on the connecting block and located in the groove.

8. The automatic loading and unloading mechanism for large saw blades according to claim 1, characterized in that: The two uprights are symmetrically slidably mounted on the bottom of the fixed base. A horizontally oriented bidirectional threaded rod is rotatably mounted on the fixed base, and the bidirectional threaded rod is threadedly connected to both uprights.

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