Efficient grinding machine for bevel of straight cutting edge
By introducing the design of cutting edge bevel positioning plate, blade pressure plate and support pad on the grinding machine, the problems of low efficiency and unstable clamping of existing grinding equipment are solved, and efficient and stable grinding of multiple rows and columns of blades is achieved.
Patent Information
- Application Number
- CN202422081437.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-26
- Publication Date
- 2025-10-17
- Estimated Expiration
- 2034-08-26
AI Technical Summary
Existing equipment for grinding the beveled edge of a sheet-shaped straight blade is inefficient, cannot grind multiple rows and columns of blades simultaneously, and has unstable clamping.
A grinding machine structure is designed, which includes a cutting edge bevel positioning plate, a blade pressure plate and a blade support pad. The cutting edge bevel positioning plate determines the blade position, the blade pressure plate provides double clamping force, and the blade support pad supports the suspended part, thereby achieving stable clamping and efficient grinding of multiple rows and columns of blades.
The simultaneous grinding of multiple rows and columns of blades is achieved, which improves production efficiency, ensures stable clamping of the blades, and enhances the reliability of the grinding process.
Smart Images
Figure CN223441825U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to a grinding equipment, especially a grinding equipment of sheet straight knife. BACKGROUND
[0002] The sheet straight knife is a cutting tool, and the cutting edge thereof is usually formed by the intersection line of the cutting edge bevel and the side surface of the tool body on one side of the width direction of the tool body. The grinding equipment of the sheet straight knife needs to grind the upper and lower side surfaces and the cutting edge bevel of the tool body, and is mainly composed of a bed body, a grinding head assembly and a workbench with an electromagnetic chuck on the surface. The two ends of the chuck workbench are rotatably supported on the bed body. When the upper and lower side surfaces of the tool body are ground, the tool body is adsorbed on the table surface by the electromagnetic adsorption of the chuck workbench, the table surface is in a horizontal state, and the grinding is performed by the grinding wheel on the grinding head assembly. A plurality of blades can be clamped and adsorbed on the table surface of the chuck workbench at one time, and the blades can be arranged in multiple rows and multiple columns along the length direction and the width direction of the table surface to improve the work efficiency. When the cutting edge bevel is ground, the tool body is adsorbed on the chuck workbench, the chuck workbench is rotated by a certain angle to make the cutting edge bevel to be ground in a horizontal state, and the grinding is performed by the grinding wheel on the grinding head assembly. In this way, the blades to be ground in the cutting edge bevel can be arranged in one row at most, and only one blade can be arranged on the same transverse section, and the cutting edges of the blades must be in a straight line parallel to the length direction of the chuck workbench. The efficiency is relatively low. SUMMARY
[0003] In view of the above problems existing in the prior art, the technical problem to be solved by the utility model is to provide a high-efficiency grinding machine for the cutting edge bevel of a straight knife. The high-efficiency grinding machine can clamp and adsorb multiple rows and multiple columns of blades to be ground at one time to simultaneously grind the cutting edge bevel.
[0004] In order to solve the above technical problems, the utility model provides a high-efficiency grinding machine for the cutting edge bevel of a straight knife, which comprises a bed body, a grinding head assembly movably supported on the bed body along the length direction of the bed body, and a chuck workbench located below the grinding wheel of the grinding head assembly and rotatably supported on the bed body by a motor. A cutting edge bevel positioning plate is arranged on one side of the chuck workbench and movably installed on the bed body along the width direction of the chuck workbench. The cutting edge bevel positioning plate is provided with a positioning bevel facing the chuck workbench. A plurality of blade pressing plates are installed on the other side of the chuck workbench along the length direction of the chuck workbench. The blade pressing plates are movably arranged along the transverse and vertical directions of the chuck workbench. A pressing driving mechanism is installed on the chuck workbench and connected with the blade pressing plates. A blade supporting pad is also installed on the chuck workbench and provided with at least one blade supporting surface. The height of each blade supporting surface corresponds to the height of the blade overlapping below.
[0005] In the above structure, since the blade bevel positioning plate is movably installed on the bed in the width direction of the suction table, and the positioning bevel on the blade bevel positioning plate faces the suction table, the blade to be ground placed on the suction table can be positioned by the blade bevel positioning plate to determine the installation position. During the positioning process, the blade bevel positioning plate extends towards the suction table, and a certain angle is formed between the positioning bevel and the table surface of the suction table. When the angle of the blade bevel of the blade to be ground is the same as that of the positioning bevel, the table surface of the suction table is in a horizontal state, and the blade bevel of the blade to be ground is in contact with the positioning bevel on the blade bevel positioning plate to determine the installation position of the blade to be ground. When the angle of the blade bevel of the blade to be ground is different from that of the positioning bevel, the suction table is only required to be driven to rotate by a certain angle, so that the angle formed between the positioning bevel and the table surface of the suction table is equal to the angle of the blade bevel of the blade to be ground. After the blade bevel of the blade to be ground is in contact with the positioning bevel on the blade bevel positioning plate, the blade bevels of the blades arranged in a row in the length direction of the suction table will naturally be in a straight line parallel to the length direction of the suction table, and the blades can be clamped and then enter the grinding process. Furthermore, the blades to be ground can be placed in multiple columns in the up-down direction and overlapped, and the blade bevels of the blades in each column are in contact with the positioning bevel on the blade bevel positioning plate. In this way, the positioning and installation of the blades in multiple rows and multiple columns can be realized, and the blade bevels of the blades in multiple rows and multiple columns will be in the same plane, and the clamping is completed and then the grinding process is entered.
[0006] Furthermore, a plurality of blade pressing plates are installed on the other side of the suction table in the length direction of the suction table, the blade pressing plates are movably arranged in the transverse direction and the up-down direction of the suction table, and a pressing driving mechanism is installed on the suction table and is in transmission connection with the blade pressing plates. After the multiple blades are overlapped and installed on the suction table, the suction force generated by the electromagnetic suction plate of the suction table can only ensure the clamping of the lowermost blade, and cannot ensure the reliability of the clamping of the remaining blades. To this end, the blade pressing plates are provided to clamp the blades to be ground overlapped in the up-down direction by the electromagnetic suction force of the suction table and by the blade pressing plates. The double forces can provide sufficient clamping force for the straight blade to be ground. The blade pressing plates can be driven by the pressing driving mechanism to extend above the blades to be ground after the positioning and placement of the blades to be ground, and the pressing force is applied downward to press the blades on the table surface of the suction table to ensure the normal grinding. After the grinding is completed, the pressing driving mechanism is reversely operated to lift and retract the blade pressing plates away from the pressing position, so as to leave the operation space required for the positioning operation of the blades to be ground, and to ensure the smooth positioning and installation of the blades.
[0007] More due to the knife blade supporting pad is installed on the suction table, at least one knife blade supporting surface is arranged on the knife blade supporting pad, the height of each knife blade supporting surface corresponds to the height of the knife blade overlapped below, after the multiple knife blades are overlapped and installed, the multiple knife blades are in the staggered state in the transverse direction of the suction table, the side opposite to the cutting edge of the knife blade above is in the suspended state, especially when the angle of the cutting edge bevel is small, the transverse staggered degree of each knife blade is more obvious, the suspended part is more when the width direction size of the knife blade is small, when the knife blade pressing plate is used for pressing, the pressing point may be outside the width direction of the last layer of the knife blade, the clamping state is unstable, and the normal grinding is affected, therefore, each knife blade supporting surface on the installed knife blade supporting pad can support the suspended part in the width direction of each corresponding knife blade except the last layer, and the height of each knife blade supporting surface corresponds to the height of the knife blade overlapped below, so that no matter how small the width direction size of the knife blade is and how small the angle of the cutting edge bevel is, the stability of the pressing of the knife blade pressing plate on the overlapped and transversely staggered knife blades can be ensured, and reliable fixing of the multiple overlapped and staggered knife blades is implemented.
[0008] Therefore, the technical scheme can simultaneously grind the cutting edge bevel of the multiple rows and columns of the knife blades clamped at one time, the clamping of the knife blades is stable and reliable, and the production efficiency is greatly improved.
[0009] In an optional embodiment of the utility model, the cutting edge bevel positioning plate is movably supported on the bed body through the guide rail pair, and is driven by the positioning driving cylinder to enter and exit the positioning position along the width direction of the suction table. In this embodiment, the entering and exiting of the cutting edge bevel positioning plate to the positioning position can be automatically controlled and flexible, and the operation is convenient.
[0010] In another optional embodiment of the utility model, a positioning support is arranged on the bed body, the guide rail pair and the positioning driving cylinder are arranged on the positioning support, a limiting adjusting screw is arranged on the positioning support, and the cutting edge bevel positioning plate is limited to the positioning position by the limiting adjusting screw. In this embodiment, the guide rail pair and the positioning driving cylinder are arranged on the bed body through the positioning support, and the stability is good. The positioning position of the cutting edge bevel positioning plate can be conveniently adjusted through the limiting adjusting screw, and the positioning requirement of the knife blade with different cutting edge bevel angles can be met.
[0011] In another preferred embodiment of the utility model, the side of the sucking disc workbench is fixedly connected with a pressing plate support, the pressing plate support is fixedly connected with a pressing plate support rod, a long support slot is arranged on the blade pressing plate, the pressing plate support rod passes through the long support slot, a compression spring is sleeved on the pressing plate support rod, the blade pressing plate is supported on the compression spring through a spherical washer, a limiting part is arranged on the upper end of the pressing plate support rod, and the limiting part is provided with the spherical washer between the blade pressing plate. By adopting the embodiment, the compression spring can keep the blade pressing plate in the state of being lifted at any time, the limiting part limits the highest position of the blade pressing plate, and the long support slot on the blade pressing plate can allow the blade pressing plate to be displaced in the length direction of the blade pressing plate, that is, the transverse direction of the sucking disc workbench. Therefore, the blade pressing plate can move in the transverse direction and the vertical direction of the sucking disc workbench under the driving of the pressing driving mechanism, so as to realize the action requirements of the blade pressing plate.
[0012] In a further preferred embodiment of the utility model, the limiting part is two nuts that are screwed on the upper end of the pressing plate support rod and are tightly connected with each other. By adopting the embodiment, the two nuts that are tightly connected with each other can be adjusted in the up-down direction on the upper end of the pressing plate support rod, so that the blade pressing plate is in the best working state of pressing and lifting.
[0013] In another further preferred embodiment of the utility model, the pressing driving mechanism comprises a pressing driving rod that is hingedly connected to the rear end of the blade pressing plate, the other end of the pressing driving rod is fixedly connected to a driving shaft, and the driving shaft is rotatably supported on the pressing plate support. By adopting the embodiment, the driving shaft can swing the pressing driving rod, so that the rear end of the blade pressing plate moves up and down and left and right along the circular arc track of the outer end of the pressing driving rod. The whole blade pressing plate moves in the plane of the sucking disc workbench under the limitation of the pressing plate support rod and the limiting part on the pressing plate support rod. Correspondingly, the front end of the blade pressing plate can realize the movement requirements of forward extension and downward pressing and backward retraction and upward lifting.
[0014] In a further preferred embodiment of the utility model, the driving shaft is driven by a rotary cylinder. By adopting the embodiment, the automation of the blade pressing device can be realized, the pressing is stable, and the driving shaft can be simultaneously driven by two or more rotary cylinders.
[0015] In a further preferred embodiment of the utility model, the blade supporting pad is a whole component with a stepped structure, and each step surface of the stepped structure is a blade supporting surface. By adopting the embodiment, the blade supporting pad has a simple structure and is convenient to manufacture and install.
[0016] In a further preferred embodiment of the utility model, the blade supporting pad is composed of a plurality of supporting blocks in a stepped structure, and the upper surfaces of the supporting blocks after being overlapped are blade supporting surfaces. By adopting the embodiment, the height of the blade supporting surface of the blade supporting pad can be flexibly changed, so as to facilitate the supporting requirements of blades with different thicknesses.
[0017] In the further preferred embodiment of the utility model, the blade supporting pad is made of elastic material, and the blade supporting pad is fixed on the steel bottom plate by screws, and the steel bottom plate is adsorbed on the suction table. In this embodiment, the blade supporting pad made of elastic material such as polyurethane can reduce the manufacturing precision requirement, and only needs to be slightly higher than the height of the overlapped blade below the supported blade, and the steel bottom plate can be adsorbed and fixed on the suction table by the electromagnetic adsorption force of the suction table, and the blade supporting pad made of elastic material can be conveniently and flexibly installed and connected with the suction table through the steel bottom plate. BRIEF DESCRIPTION OF DRAWINGS
[0018] The utility model direct straight blade edge bevel high -efficient grinding machine makes further detailed explanation in combination with specific embodiment and drawing.
[0019] Figure 1 It is a top view structure schematic diagram (hidden grinding head assembly) of a specific embodiment of the utility model direct straight blade edge bevel high -efficient grinding machine;
[0020] Figure 2 It is a cross section structure schematic diagram of a specific embodiment of the utility model direct straight blade edge bevel high -efficient grinding machine
[0021] Figure 3 It is Figure 1 The sectional view of A-A part in the structure shown;
[0022] Figure 4 It is Figure 2 The structure schematic diagram of a kind of embodiment of blade supporting pad in the structure shown;
[0023] Figure 5 It is Figure 2 The structure schematic diagram of another embodiment of blade supporting pad in the structure shown.
[0024] In the drawing: 1-pressing drive mechanism, 2-suction table, 3-blade supporting pad, 4-blade pressing plate, 5-branch long slot, 6-pressing plate support rod, 7-pressing drive rod, 8-drive shaft, 9-pressing plate support, 10-rotary cylinder, 11-bed, 12-positioning support, 13-positioning drive cylinder, 14-edge bevel positioning plate, 15-guide rail pair, 16-positioning bevel, 17-limiting adjusting screw, 18-blade to be ground, 19-grinding head assembly, 20-limiting part, 21-spherical washer, 22-pressing spring, 23-steel bottom plate, 24-blade supporting surface, 25-supporting block. DETAILED DESCRIPTION
[0025] In Figure 1 And Figure 2The straight blade edge bevel efficient grinder shown, the base support member of the grinder is the bed 11, the bed guide rails are provided on the left and right sides above the bed 11, the grinding head assembly 19 is movably supported on the bed 11 along the length direction of the bed 11 through the bed guide rails to realize the grinding movement, the suction table 2 is installed below the bed guide rails on both sides of the bed 11, the suction table 2 is rotatably supported on the bed 11 through the rotating shafts at both ends thereof and is located below the grinding wheel of the grinding head assembly 19, the suction table 2 is usually driven by a servo motor to change the circumferential position, so that the suction table 2 can adsorb the blades 18 to be ground by the suction force of the electromagnetic suction disc thereon, as shown in Figure 3 During the clamping of the blades 18 to be ground, the table surface of the suction table 2 is usually in a horizontal state, after the clamping is completed, the suction table 2 will be rotated by a certain angle under the driving of the servo motor, so that the blade edge bevels on the blades 18 to be ground are in a horizontal state, and the grinding wheel on the grinding head assembly 19 performs the grinding processing. Figure 2 As shown in
[0026] Referring to Figure 3 A blade edge bevel positioning plate 14 is provided on one side of the suction table 2, the length of the blade edge bevel positioning plate 14 corresponds to the length of the suction table 2, the blade edge bevel positioning plate 14 is movably installed on the bed 11 along the width direction of the suction table 2, as a preferred embodiment, the blade edge bevel positioning plate 14 is movably supported on the bed 11 through the guide rail pair 15 and the positioning bracket 12, the blade edge bevel positioning plate 14 is driven by the positioning driving cylinder 13 to enter and exit the positioning position along the width direction of the suction table 2, the guide rail pair 15 and the positioning driving cylinder 13 are installed on the positioning bracket 12, the positioning bracket 12 is fixedly connected to the bed 11, the limiting adjustment screw 17 is screwed to the outer extension end of the positioning bracket 12 through the adjustment screw support plate, when the blades 18 to be ground are positioned on the suction table 2, the positioning driving cylinder 13 drives the blade edge bevel positioning plate 14 to extend to the position defined by the limiting adjustment screw 17 to enter the positioning state, at this time, the suction table 2 needs to adjust the angle to make the angle between the positioning bevel 16 on the blade edge bevel positioning plate 14 and the table surface of the suction table 2 consistent with the angle of the blade edge bevel of the blade 18 to be ground, thereafter, the blade edge bevels of the blades 18 to be ground which are overlapped above and below are only needed to be pushed to the positioning bevel 16 and abutted therewith, so that the blades 18 to be ground which are arranged above and below can be conveniently positioned, the blade edge bevels of the blades 18 to be ground which are arranged in a row along the length direction of the suction table 2 will naturally be in a straight line parallel to the length direction of the suction table 2, the blade edge bevels of the blades 18 to be ground which are arranged in each column in the up-down direction will also be in the same plane.
[0027] A plurality of blade pressing plates 4 are installed along the length direction of the suction table 2 at the other side of the suction table 2 and are spaced by pressing plate supports 9. The pressing plate supports 9 are fixed to the side of the suction table 2. Pressing plate supporting rods 6 are fixed to the pressing plate supports 9. Blade pressing plate long grooves 5 are provided on the blade pressing plates 4. The length direction of the blade pressing plate long grooves 5 is parallel to the length direction of the blade pressing plates 4. The pressing plate supporting rods 6 pass through the blade pressing plate long grooves 5. Pressing springs 22 are sleeved on the pressing plate supporting rods 6. The blade pressing plates 4 are supported on the pressing springs 22 through spherical washers 21. Limiting portions 20 are provided on the upper ends of the pressing plate supporting rods 6. The limiting portions 20 are preferably two nuts that are screwed on the upper ends of the pressing plate supporting rods 6 and are tightly connected with each other. The spherical washers 21 are provided between the limiting portions 20 and the blade pressing plates 4. In this way, the blade pressing plates 4 are movably arranged in the transverse direction and the up-down direction of the suction table 2. A pressing driving mechanism 1 is installed on the suction table 2. The pressing driving mechanism 1 comprises pressing driving rods 7 that are hingedly connected to the rear ends of the blade pressing plates 4. The other ends of the pressing driving rods 7 are fixed to driving shafts 8 through connecting keys. The connecting keys are preferably splines. The driving shafts 8 are rotatably supported on the corresponding pressing plate supports 9 through shaft seats. In this way, the pressing driving mechanism 1 is in transmission connection with the blade pressing plates 4. The driving shafts 8 are preferably driven by rotary cylinders 10.
[0028] Referring to Figure 3 After the to-be-ground blades 18 are positioned and placed, the rotary cylinders 10 in the pressing driving mechanism 1 drive the pressing driving rods 7 to swing towards the suction table 2 through the driving shafts 8. The pressing driving rods 7 move the rear ends of the corresponding blade pressing plates 4 upwards and forwards. The front ends of the blade pressing plates 4 are correspondingly extended forwards and downwards to apply pressing force on the to-be-ground blades 18. Under the joint action of the electromagnetic suction force of the suction table 2, the to-be-ground blades 18 are reliably clamped. Thereafter, the positioning driving cylinder 13 drives the blade edge inclined surface positioning plate 14 to retreat. The suction table 2 is rotated by a certain angle to make the blade edge inclined surfaces of the to-be-ground blades 18 be in a horizontal state. The grinding wheels on the blade grinder 19 can simultaneously grind the blade edge inclined surfaces of the plurality of blades. Figure 2 After the grinding is completed, the suction table 2 is reversely rotated to make the table surface be in a blade loading and unloading state. The rotary cylinders 10 in the pressing driving mechanism 1 are reversely operated to move the rear ends of the blade pressing plates 4 backwards and downwards through the pressing driving rods 7. The front ends of the blade pressing plates 4 are correspondingly lifted upwards and retracted backwards to the position shown by the double-dot dashed line in the figure to make room for the operation space required for taking out the ground blades and installing the to-be-ground blades 18 for the next time.
[0029] A blade supporting pad 3 is also installed on the suction table 2. Referring to Figure 4 and Figure 5At least one blade supporting surface 24 is provided on the blade supporting pad 3, and three blade supporting surfaces 24 can be provided to meet the installation and support requirements of two to four blades simultaneously grinding. The height of each blade supporting surface 24 corresponds to the height of the blade overlapped below the blade supported thereby. The blade supporting pad 3 is preferably a component of elastic material such as polyurethane, and the height of each blade supporting surface 24 is slightly higher than the height of the blade overlapped below the blade supported thereby. After the overhanging part of each blade 18 to be ground is placed on the corresponding blade supporting surface 24, the blade supporting pad 3 of elastic material will be elastically deformed after the blade pressing plate 4 is pressed down, so that the height of each blade supporting surface 24 is equal to the height of the blade overlapped below the blade supported thereby, thereby ensuring the stability of the position of the blade 18 to be ground after being pressed by the blade pressing plate 4. The blade supporting pad 3 is preferably fixed on the steel bottom plate 23 by screws, so that the blade supporting pad 3 can be installed on the suction table 2 through the steel bottom plate 23 at the bottom, and the blade supporting pad 3 is fixed by the electromagnetic suction force of the suction table 2. The blade supporting pad 3 can be a long strip corresponding to the length of the blade 18 to be ground, and each group of overlapped blades 18 to be ground corresponds to one long strip-shaped blade supporting pad 3. Alternatively, the blade supporting pad 3 can be a short block with a length slightly larger than the width of the blade pressing plate 4, and each group of overlapped blades 18 to be ground corresponds to two short block-shaped blade supporting pads 3, and the installation position of the blade supporting pad 3 corresponds to the position of the blade pressing plate 4.
[0030] As shown in Figure 4 , the blade supporting pad 3 is a ladder-shaped integral component, and each step surface of the ladder-shaped component is a blade supporting surface 24. The structure of the blade supporting pad 3 can also be as shown in Figure 5 , the blade supporting pad 3 is composed of a plurality of supporting blocks 25 in a ladder shape, and the upper surface of each supporting block 25 after being stacked is a blade supporting surface 24.
[0031] The above only lists some preferred embodiments of the present application, but the present application is not limited thereto, and many improvements and changes can be made. Any improvement and change made on the basis of the basic principles of the present application shall be considered to fall within the protection scope of the present application.
Claims
1. A high-efficiency grinding machine for the bevel of a straight knife edge, comprising a bed (11), a grinding head assembly (19) movably supported on the bed (11) along the length direction of the bed (11), and a suction cup worktable (2) located below the grinding wheel of the grinding head assembly (19), wherein the suction cup worktable (2) is rotatably supported on the bed (11) by a motor, and is characterized in that: A cutting edge bevel positioning plate (14) is provided on one side of the suction cup workbench (2), and the cutting edge bevel positioning plate (14) can be movably installed on the bed (11) along the width direction of the suction cup workbench (2). A positioning bevel (16) is provided on the cutting edge bevel positioning plate (14), and the positioning bevel (16) faces the suction cup workbench (2); a plurality of blade pressing plates (4) are installed at intervals along the length direction of the suction cup workbench (2) on the other side of the suction cup workbench (2), and the blade pressing plates (4) are movably arranged in the transverse and vertical directions of the suction cup workbench (2); a pressing drive mechanism (1) is installed on the suction cup workbench (2), and the pressing drive mechanism (1) is transmission-connected to the blade pressing plates (4); a blade supporting pad (3) is also installed on the suction cup workbench (2), and at least one blade supporting surface (24) is provided on the blade supporting pad (3), and the height of each blade supporting surface (24) corresponds to the height of the blade overlapped below the blade supported by it.
2. The high-efficiency grinding machine for the bevel of a straight knife edge according to claim 1, characterized in that: The cutting edge bevel positioning plate (14) is movably supported on the bed (11) via a guide rail pair (15). The cutting edge bevel positioning plate (14) is driven by a positioning drive cylinder (13) to enter and exit a positioning position along the width direction of the suction cup workbench (2).
3. The high-efficiency straight knife edge bevel grinding machine according to claim 2, characterized in that: A positioning bracket (12) is provided on the bed (11), a guide rail pair (15) and a positioning drive cylinder (13) are mounted on the positioning bracket (12), a limit adjustment screw (17) is provided on the positioning bracket (12), and the positioning position of the cutting edge bevel positioning plate (14) is limited by the limit adjustment screw (17).
4. The high-efficiency straight knife edge bevel grinding machine according to claim 1, characterized in that: A pressure plate support (9) is fixedly connected to the side of the suction cup workbench (2), a pressure plate support rod (6) is fixedly connected to the pressure plate support (9), a support rod long groove (5) is provided on the blade pressure plate (4), the pressure plate support rod (6) passes through the support rod long groove (5), a compression spring (22) is sleeved on the pressure plate support rod (6), the blade pressure plate (4) is supported on the compression spring (22) through a spherical washer (21), a limiting portion (20) is provided at the upper end of the pressure plate support rod (6), and a spherical washer (21) is provided between the limiting portion (20) and the blade pressure plate (4).
5. The high-efficiency straight knife edge bevel grinding machine according to claim 4, characterized in that: The limiting portion (20) is two nuts screwed to the upper end of the pressure plate support rod (6) and fastened to each other.
6. The high-efficiency straight knife edge bevel grinding machine according to claim 1, characterized in that: The pressing drive mechanism (1) comprises a pressing drive rod (7) hinged to the rear end of the blade pressing plate (4); the other end of the pressing drive rod (7) is fixedly connected to a driving shaft (8); and the driving shaft (8) is rotatably supported on a pressing plate support (9).
7. The high-efficiency straight knife edge bevel grinding machine according to claim 6, characterized in that: The driving shaft (8) is driven by a rotary cylinder (10).
8. The high-efficiency straight knife edge bevel grinding machine according to claim 1, characterized in that: The blade support pad (3) is a stepped integral component, and each step surface of the stepped component is a blade support surface (24).
9. The high-efficiency straight knife edge bevel grinding machine according to claim 1, characterized in that: The blade support pad (3) is formed by stacking a plurality of support blocks (25) in a stepped manner, and the upper surface of each stacked support block (25) is a blade support surface (24).
10. The high-efficiency grinding machine for the bevel of a straight knife edge according to claim 1, 8 or 9, characterized in that: The blade support pad (3) is a component made of elastic material. The blade support pad (3) is fixed to a steel base plate (23) by screws. The steel base plate (23) is adsorbed on the suction cup workbench (2).