CN114147632B

CN114147632B - Clamp unit for non-hole blade, clamp and use method

Info

Publication number: CN114147632B
Application number: CN202111520405.4A
Authority: CN
Inventors: 刘天; 储永代; 赵丽丽; 王云志; 王羽中
Original assignee: Zhuzhou Cemented Carbide Cutting Tools Co Ltd
Current assignee: Zhuzhou Cemented Carbide Cutting Tools Co Ltd
Priority date: 2021-12-14
Filing date: 2021-12-14
Publication date: 2023-06-13
Anticipated expiration: 2041-12-14
Also published as: CN114147632A

Abstract

The invention discloses a clamp unit for a non-porous blade, a clamp and a using method. The clamp unit adjusts the distance between the cutter grooves of the two limiting plate units by changing the relative positions between the strip-shaped holes and the locking pieces, can adjust and clamp according to the actual length of the non-porous cutter, can clamp a plurality of non-porous cutter with different length specifications, is high in universality, and can carry out surface treatment in batches by installing the clamp unit provided with the non-porous cutter on the clamp.

Description

Clamp unit for non-hole blade, clamp and use method

Technical Field

The invention relates to the field of metal cutting tools, in particular to a clamp unit for a non-porous blade, a clamp and a using method.

Background

In order to improve the cutting performance of the blade product, the blade is subjected to cutting edge treatment, surface treatment, coating treatment, surface treatment after coating and other technical means, wherein the cleaning flow is selected according to the needs among the working procedures. In the prior art, special fixtures are selected for edge treatment, surface treatment, cleaning and coating of the non-porous blade.

The invention patent application CN112757160A discloses a blade locking unit and a blade clamping fixture, on one hand, the fixture can only be used as a special fixture according to the length of a non-porous blade, and the inventory of fixtures with different specifications is increased according to the non-porous blades with different lengths, so that the fixture is provided with a warehouse and cost, and has poor universality.

Disclosure of Invention

The invention aims to solve the technical problem of overcoming the defects of the prior art and providing a clamp unit for a non-porous blade, a clamp and a use method, wherein the clamp unit has good universality, simple structure and convenient assembly and disassembly.

In order to solve the technical problems, the invention adopts the following technical scheme:

the utility model provides a hole-free blade anchor clamps unit, includes the base body, follows base body length direction top interval arrangement has a plurality of knife groove groups, knife groove group includes two knife grooves of relative setting, installs a hole-free blade in every knife groove group, anchor clamps unit still includes retaining member and limiting plate, the limiting plate comprises two limiting plate units, the limiting plate unit includes spacing portion and the installation department that is located spacing portion both ends, the knife groove is located spacing portion, two the knife groove one-to-one of limiting plate unit constitutes knife groove group, be equipped with the bar hole along base body width direction on the installation department, the retaining member inserts in proper order and locates in the bar hole of two limiting plate units with limiting plate and base body locking connection.

As a further improvement of the above technical scheme:

the mounting part of any limiting plate unit in the limiting plates is provided with a step surface, the strip-shaped hole is positioned on the step surface, the thickness of the step surface is H1, the thickness of the mounting part is H2, and the requirement of 2H2=H2 is met.

The upper surfaces of the two end parts of the base body are provided with first center holes for installing locking pieces.

The fixture unit further comprises a lock nut, second counter bores are formed in the lower surfaces of the two ends of the base body, the second counter bores are communicated with the first center hole, the radius of the second counter bores is larger than that of the first center hole, and the lock nut is located in the second counter bores and matched with the locking piece.

The fixture unit comprises a pressing assembly, bosses are respectively arranged at two ends of the base body, the bosses are oppositely arranged, the pressing assembly is matched with the two bosses and used for pressing the non-porous blade in the cutter groove, the pressing assembly comprises a pressing rod body and a spring, the spring is arranged at one end of the pressing rod body, the bosses are provided with pressing rod sinking table holes, and two ends of the pressing rod body are respectively inserted into the pressing rod sinking table holes.

Let the length of the depression bar body of rod be L4, length when the spring compresses tightly is L6, is used for placing the length of the depression bar counter sinking hole of spring is L1, two the closest distance of boss is L3, satisfies: L4+L6 < L1+L3.

Let the length of the depression bar of not placing the spring sink the platform hole be L2, let the length be L5 when the spring is lax, satisfy: L4+L5 > L1+L2+L3.

The method meets the following conditions: l4 > L2+L3.

The fixture unit comprises a magnetic part, a magnet sinking table hole is formed in the lower surface of the base body, the magnetic part is arranged in the magnet sinking table hole, and the magnetic part is used for magnetically adsorbing the pore-free blade.

Let the width of magnet sinking platform hole be B1, the length of pore-free blade is L8, the interval between two tool slots in the tool slot group is L7, satisfies: l7 is more than L8 is more than B1, and L7-L8 is less than L8-B1.

The magnetic part comprises a magnet and supporting bodies positioned at two ends of the magnet, the height of the magnet relative to the supporting bodies is H3, the distance between the bottom surface of the magnet sinking platform hole and the upper surface of the base body is H4, and H2 is more than H3-H4 is more than 0.

The depth of the magnet sinking platform hole is set to be H6, and the height of the support body is set to be H5, so that H5-H6 is more than 0.

The invention also provides a clamp for the non-hole blade, which comprises a tray and the clamp unit for the non-hole blade, wherein the tray is of a frame structure, and two ends of a base body of the clamp unit are arranged on the tray.

As one general inventive concept, the present invention also provides a jig for a non-porous blade, including a jig base including a mandrel and the foregoing jig unit for a non-porous blade, the jig unit being mounted on the mandrel.

As a general inventive concept, the present invention also provides a method of using a clamp unit for a non-porous blade, comprising the steps of:

when the hole-free blade is required to be sandblasted and cleaned, the distance between the cutter grooves of the two limiting plate units of the clamp unit is adjusted, the hole-free blade is placed into the cutter groove, the limiting plate units are locked, and the two ends of the rod body of the compression rod are respectively inserted into the holes of the compression rod sinking table to press the hole-free blade;

when the nonporous blade is required to be coated, the distance between the cutter grooves of the two limiting plate units of the clamp unit is adjusted, the nonporous blade is placed in the cutter groove, the limiting plate units are locked, and the magnetic part is placed in the magnet sinking table hole to magnetically adsorb the nonporous blade.

Compared with the prior art, the invention has the advantages that:

according to the clamp unit for the non-hole blade, the distance between the cutter grooves of the two limiting plate units is adjusted by changing the relative position between the strip-shaped hole and the locking piece, so that the clamp unit can be used for adjusting and clamping according to the actual length of the non-hole blade, and can clamp a plurality of non-hole blades with different length specifications, is high in universality and convenient to assemble and disassemble, reduces the inventory and cost of the clamp unit, and has the advantages of being simple in structure, few in parts, low in manufacturing difficulty, high in surface treatment efficiency and good in coating effect.

According to the fixture, the non-porous blade is fixed by using the magnetic part or the pressing component according to whether the non-porous blade needs coating treatment or non-coating treatment, the non-porous blade can be fixed on the fixture by using the fixture unit, and then a plurality of fixture units are placed together according to equipment conditions, so that the non-porous blade can be placed into cleaning equipment, cutting edge treatment equipment, surface treatment equipment and coating equipment for use, and can be repeatedly subjected to material transferring treatment by the cleaning equipment, the surface treatment equipment and the coating equipment, the loading and unloading times of the fixture are reduced while the equipment utilization rate is not reduced, and the production efficiency of the non-porous blade is greatly improved.

The application method of the clamp unit for the non-porous blade ensures that the front knife face of the non-porous blade is not blocked during coating and improves the coating effect of the non-porous blade while taking into consideration the coating treatment and the rapid material transferring of other surface treatment procedures.

Drawings

Fig. 1 is a schematic structural view of the clamp unit of the present invention.

Fig. 2 is a side view of the clamp unit of the present invention in use.

Fig. 3 is a partial enlarged view at a in fig. 1.

FIG. 4 is a schematic view showing the state of use of the jig unit of the present invention in sand blast cleaning of a non-porous blade.

Fig. 5 is a partial enlarged view at B in fig. 4.

Fig. 6 is a schematic view showing the use of the holder unit of the present invention in coating a non-porous blade.

Fig. 7 is a partial enlarged view at C in fig. 6.

Fig. 8 is a top view of the assembled spacing plate unit of the present invention.

Fig. 9 is a schematic perspective view of the base body of the present invention.

Fig. 10 is a schematic perspective view of the base body of the present invention (another view).

Fig. 11 is a schematic structural view of the limiting plate unit of the present invention.

Fig. 12 is a schematic view of the non-porous blade structure of the present invention.

Fig. 13 is a schematic view of a magnetic portion according to another embodiment of the present invention.

FIG. 14 is a schematic view of the fixture used in the grit blasting of a non-porous blade of the present invention.

FIG. 15 is a schematic view of the fixture in use with a non-porous blade coating of the present invention.

The reference numerals in the drawings denote:

4. a base; 41. a base body; 411. a boss; 4111. a pressing rod sinking platform hole; 4112. a boss through hole; 4131. a second counterbore; 4132. a magnet sinking platform hole; 4141. a first central bore; 412. a flow channel; 413. a lower surface; 414. an upper surface; 416. an end face; 4161. scale marks; 4162. an identifier; 42. a limiting plate unit; 421. a mounting part; 4211. a step surface; 4212. a bar-shaped hole; 422. a limit part; 4222. a knife slot; 43. a locking member; 44. a lock nut; 5. a compression assembly; 51. a compression bar body; 52. a spring; 6. a magnetic section; 61. a magnet; 611. a magnetic part top surface; 612. a magnetic part sinking table top; 613. a magnetic part bottom surface; 62. a support body; 7. a non-porous blade; 71. the bottom surface of the blade; 72. a blade top surface; 8. a tray; 9. and (5) a mandrel.

Detailed Description

The invention will be described in further detail with reference to the drawings and the specific examples. The instruments or materials used in the present invention are commercially available unless otherwise specified.

Example 1:

as shown in fig. 1 to 12, the clamp unit for a hole-free blade of this embodiment includes a base body 41, a plurality of cutter groove groups are arranged at intervals above the base body 41 in the length direction, each cutter groove group includes two cutter grooves 4222 which are oppositely arranged, a hole-free blade 7 is installed in each cutter groove group, the clamp unit further includes a locking member 43 and a limiting plate, the limiting plate is composed of two limiting plate units 42, each limiting plate unit 42 includes a limiting portion 422 and an installation portion 421 located at two ends of the limiting portion 422, the cutter grooves 4222 are located on the limiting portion 422, the cutter grooves 4222 of the two limiting plate units 42 are in one-to-one correspondence to form cutter groove groups, strip-shaped holes 4212 are formed in the installation portion 421 in the width direction of the base body 41, and the locking member 43 is sequentially inserted into the strip-shaped holes 4212 of the two limiting plate units 42 to lock and connect the limiting plate with the base body 41. In the invention, the distance between the cutter grooves 4222 of the two limiting plate units can be adjusted by changing the relative position between the strip-shaped holes 4212 and the locking pieces 43, so that the clamping can be adjusted according to the actual length of the non-hole cutter blades 7, a plurality of non-hole cutter blades 7 with different length specifications can be clamped, the universality is strong, and the inventory and the cost of the clamp units are reduced.

As shown in fig. 11 (a) is a top view of the limiting plate unit 42, fig. 11 (b) is a side view of the limiting plate unit 42), the mounting portion 421 of any one of the limiting plate units 42 is provided with a stepped surface 4211, the bar-shaped hole 4212 is located on the stepped surface 4211, the thickness of the stepped surface 4211 is H1, and the thickness of the mounting portion 421 is H2, satisfying 2h1=h2. In this embodiment, the mounting portions 421 of the two limiting plate units 42 are stacked up and down, and the limiting portions 422 of the two limiting plate units 42 are disposed opposite to each other.

In this embodiment, the bar-shaped hole 4212 is a kidney-shaped hole, and the locking member 43 is a screw.

As shown in fig. 9 and 10, the upper surfaces of both end portions of the base body 41 are provided with first center holes 4141 for mounting the locking members 43.

The fixture unit further comprises a lock nut 44, the lower surfaces of the two ends of the base body 41 are provided with second counter bores 4131, the second counter bores 4131 are communicated with the first center hole 4141, the radius of the second counter bores 4131 is larger than that of the first center hole 4141, and the lock nut 44 is located in the second counter bores 4131 and matched with the locking piece 43. In this embodiment, the base body 41, the limiting plate, the locking member 43, and the locking nut 44 constitute the base 4.

As shown in fig. 5 to 7, the end face 416 of the base body 41 is provided with graduation marks 4161 for adjusting the positions of the limiting plate units 42, the middle of the end face 416 is provided with an identifier 4162 for identification, the identifier 4162 is 26-16-1, namely, the length L8 of the non-hole cutter blade 7 can be used for clamping products ranging from 16mm to 26mm, the graduation marks 4161 of the end face 416 are spaced by 1mm, and when the distance between the cutter grooves 4222 of the two limiting plate units 42 is adjusted, the positions of the limiting plate units 42 on the base body 41 relative to the graduation marks 4161 are symmetrically adjusted based on the graduation marks 4161 of the end face 416. The scale marks 4161 assist in adjusting the limiting plate units 42, and improve the spacing and symmetry precision between the cutter grooves 4222 of the limiting plate units 42, so that the coating trace at the bottom of the non-porous cutter blade 7 is more symmetrical and attractive.

As shown in fig. 1, 4 and 5, the fixture unit includes a compressing assembly 5, two ends of the base body 41 are respectively provided with a boss 411, the two bosses 411 are oppositely arranged, the compressing assembly 5 is matched with the two bosses 411 and is used for compressing the non-hole blade 7 in the cutter slot 4222, the compressing assembly 5 includes a compression rod body 51 and a spring 52, the spring 52 is arranged at one end of the compression rod body 51, the boss 411 is provided with a compression rod sinking hole 4111, and two ends of the compressing assembly 5 are respectively inserted into the compression rod sinking hole 4111. In this embodiment, the boss 411 is further provided with a boss through hole 4112 communicated with the pressing rod sinking platform hole 4111, the radius of the boss through hole 4112 is smaller than that of the pressing rod sinking platform hole 4111, the fluidity of cleaning liquid during sand blasting cleaning is increased by the boss through hole 4112, and the risk of hiding fine sand is avoided. The compression assembly 5 of this embodiment is more convenient to disassemble than the compression assemblies of the prior art.

Let the length of the lever body 51 be L4, the length of the spring 52 when compressed be L6, the length of the lever sinking hole 4111 for placing the spring 52 be L1, the nearest distance between the two bosses 411 be L3, satisfying: l4+l6 < l1+l3, ensures that the hold-down assembly 5 can be inserted into the plunger counter bore 4111 and is not tilted (coaxial not tilted) with respect to the plunger counter bore 4111. When the pressing component 5 works, the pressing component 5 is not stressed along the axial direction of the pressing rod body 51 during sand blasting and cleaning, and the spring 52 is in a compressed state, so that the pressing component 5 cannot move in the axial direction.

Let the length of the pressing rod sinking table hole 4111, in which the spring 52 is not placed, be L2, let the length of the spring 52 when relaxed be L5, satisfy: the L4+ L5 is larger than L1+ L2+ L3, so that the spring 52 is in a compressed state after the compression assembly 5 is inserted into the compression rod sinking table hole 4111; in the present embodiment, the thickness of the boss 411 in which the spring 52 is placed is larger than that of the boss 411 in which the spring 52 is not placed.

In this embodiment, the following are satisfied: l4 > L2+L3, guarantee to compress tightly the during operation of subassembly 5, the depression bar body of rod 51 both ends are in depression bar heavy bench hole 4111 respectively, guarantee to compress tightly subassembly 51 and be the hard support along the radial atress of depression bar body of rod 51 when sandblast, washing, guaranteed the job stabilization nature of compressing tightly subassembly 5 (the direction that the arrow in FIG. 4 shows is the main impact force direction when sandblast, washing).

As shown in fig. 12 (a) is a front view of the non-porous blade 7, and the non-porous blade 7 is a side view), the non-porous blade 7 includes a blade top surface 72 and a blade bottom surface 71.

As shown in fig. 1, 6, 7 and 13 (the direction indicated by the arrow in fig. 6 is the spraying direction during the coating treatment), the fixture unit comprises a magnetic part 6, a circulation groove 412 is formed on the upper surface of the base body 41 between two bosses 411, a magnet sinking table hole 4132 is formed on the lower surface of the base body 41, the magnet sinking table hole 4132 is communicated with the circulation groove 412, the magnetic part 6 is arranged in the magnet sinking table hole 4132, and the magnetic part 6 is used for magnetically adsorbing the non-porous blade 7. In this embodiment, the magnetic portion 6 contacts the bottom surface 71 of the non-porous blade 7, preventing the non-porous blade 7 mounted on the pocket 4222 from falling off.

In this embodiment, let the width of the magnet counter hole 4132 be B1, the length of the hole-free blade 7 be L8, and the distance between two blade grooves 4222 in the blade groove set be L7, which satisfies the following conditions: l7 > L8 > B1, L7-L8 < L8-B1, ensuring that the non-porous blade 7 is effectively mounted in the pocket 4222, preferably 16mm < L8 < 26mm, which size range includes the size of the most non-porous blade 7, and combines the utilization rate of the fixture unit and the utilization efficiency of the sand blasting and coating equipment.

As shown in fig. 13, the magnetic part 6 includes a magnet 61 and a supporting body 62 located at two ends of the magnet 61, the thickness of the magnet 61 is greater than the thickness of the supporting body 62, the top surface of the magnet 61 is a magnetic part top surface 611, the top surface of the supporting body magnet 61 is a magnetic part sinking table surface 612, the bottom surface of the magnet 61 is a magnetic part bottom surface 613, the magnetic part sinking table surface 612 is attached to the bottom surface of the magnet sinking table hole 4132, the top surface of the magnetic part top surface 611 is higher than the upper surface 414 of the base body 41, the height of the magnetic part top surface 611 relative to the magnetic part sinking table surface 612 is H3, the distance between the bottom surface of the magnet sinking table hole 4132 and the upper surface 414 of the base body 41 is H4 (H4 is the thickness of the flow groove 412), H2 > H3-H4 > 0 is satisfied, the bottom surface 71 of the blade of the non-porous blade 7 acts on the magnetic part top surface 611, the position of the non-porous blade 7 is ensured to be accurate when the coating is performed, and the non-shielding effect of the top surface 72 of the non-porous blade 7 is achieved. Preferably, h3—h4=0.2 mm.

In this embodiment, the magnet 61 and the support 62 are both magnetic and formed separately, and in other embodiments, the magnet 61 and the support 62 are integrally formed and formed with magnetic bodies (as shown in fig. 13), the magnet 61 is in the flow channel 412, and the support 62 is located in the magnet counter bore 4132.

The bottom surface 613 of the magnetic part is higher than the lower surface 413 of the base body 41, the depth of the magnet sinking table hole 4132 is set to be H6, and the height of the supporting body 62 is set to be H5 (namely, the height of the magnetic part sinking table surface 612 relative to the bottom surface 613 of the magnetic part) so as to satisfy H5-H6 > 0. Preferably, h5—h6=0.5 mm, when the non-porous blade 7 needs to be coated, the jig unit is placed on the mandrel 9, and the magnetic bottom surface 613 is fixed by magnetic attraction to the mandrel 9. The magnetic top surface 611 and the magnetic bottom surface 613 of the magnetic part 6 are respectively contacted with the blade bottom surface 71 of the non-hole blade 7 and the mandrel 9 to form a whole, so that the position of the non-hole blade 9 is correct when coating.

As shown in fig. 14, the holder for the non-hole blade includes a tray 8 and the holder unit for the non-hole blade, wherein the tray 8 has a frame structure, and both ends of a base body 41 of the holder unit are attached to the tray 8. The fixture is used for clamping the non-porous blade 7 when coating treatment is not performed, and the non-porous blade 7 is fixed by adopting the pressing component 5, and the fixture can not comprise the magnetic part 6 or comprise the magnetic part 6.

As shown in fig. 15, a jig for a hole-free blade includes a jig base including a mandrel 9 and a jig unit for a hole-free blade described above, the jig unit being mounted on the mandrel 9. The fixture is used for clamping the non-porous blade 7 during coating treatment, does not comprise a pressing assembly 5, and adopts a magnetic part 6 to fix the non-porous blade 7.

According to the fixture, the magnetic part 6 or the compacting component 5 is used for fixing the non-porous blade 7 according to whether the non-porous blade 7 needs coating treatment or non-coating treatment, the non-porous blade 7 can be fixed on the fixture by using the fixture units, and then a plurality of fixture units are placed together according to equipment conditions, so that the non-porous blade 7 can be placed on cleaning, cutting edge treatment, surface treatment and coating equipment for use, the fixture loading and unloading times are reduced while the equipment utilization rate is not reduced, and the production efficiency of the non-porous blade 7 is greatly improved.

The method of using the holder unit for a non-porous blade of the present embodiment includes the steps of:

when the non-hole blade 7 is required to be subjected to sand blasting cleaning (or a plurality of working procedures such as cutting edge treatment, surface treatment, cleaning and the like), the distance between the cutter grooves 4222 of the two limiting plate units 42 of the clamp unit is adjusted, the non-hole blade 7 is placed into the cutter groove 4222, the limiting plate units 42 are locked by the locking pieces 43, and the two ends of the compression bar body 51 are respectively inserted into the compression bar sinking table holes 4111 to press the non-hole blade 7; the magnetic part 6 may be placed before the hole-free blade 7 is placed, or the magnetic part 6 may not be placed.

When the non-hole blade 7 needs to be coated, the distance between the two limiting plate units 42 and the blade groove 4222 of the clamp unit is adjusted, the non-hole blade 7 is placed in the blade groove 4222, the limiting plate units 42 are locked by the locking piece 43, and the magnetic part 6 is placed in the magnet sinking table hole 4132 to magnetically adsorb the non-hole blade 7; the pressing assembly 5 is not needed at this time, and the top surface of the non-porous blade 7 is not shielded during the coating treatment.

While the invention has been described in terms of preferred embodiments, it is not intended to be limiting. Many possible variations and modifications of the disclosed technology can be made by anyone skilled in the art, or equivalent embodiments with equivalent variations can be made, without departing from the scope of the invention. Therefore, any simple modification, equivalent variation and modification of the above embodiments according to the technical substance of the present invention shall fall within the scope of the technical solution of the present invention.

Claims

1. The utility model provides a hole-free blade anchor clamps unit, includes the base body (41), follows base body (41) length direction top interval arrangement has a plurality of knife groove group, knife groove group includes two knife grooves (4222) of relative setting, installs a hole-free blade (7) in every knife groove group, its characterized in that: the clamp unit further comprises a locking piece (43) and limiting plates, the limiting plates are composed of two limiting plate units (42), each limiting plate unit (42) comprises a limiting part (422) and mounting parts (421) located at two ends of each limiting part (422), knife grooves (4222) are located on each limiting part (422), knife grooves (4222) of the two limiting plate units (42) are in one-to-one correspondence to form a knife groove group, strip-shaped holes (4212) are formed in the mounting parts (421) along the width direction of the base body (41), and the locking pieces (43) are sequentially inserted into the strip-shaped holes (4212) of the two limiting plate units (42) to enable the limiting plates to be in locking connection with the base body (41);

the clamp unit comprises a pressing assembly (5), two ends of a base body (41) are respectively provided with a boss (411), the two bosses (411) are oppositely arranged, the pressing assembly (5) is matched with the two bosses (411) and used for pressing a hole-free blade (7) in a cutter groove (4222), the pressing assembly (5) comprises a pressing rod body (51) and a spring (52), the spring (52) is arranged at one end of the pressing rod body (51), the bosses (411) are provided with pressing rod sinking holes (4111), and two ends of the pressing rod body (51) are respectively inserted into the pressing rod sinking holes (4111).

2. The non-porous blade jig unit according to claim 1, wherein: the mounting part (421) of any limiting plate unit (42) of the limiting plates is provided with a step surface (4211), the strip-shaped hole (4212) is located on the step surface (4211), the thickness of the step surface (4211) is H1, the thickness of the mounting part (421) is H2, and 2H2=H2 is met.

3. The non-porous blade jig unit according to claim 1, wherein: the upper surfaces of the two end parts of the base body (41) are provided with first center holes (4141) for installing locking pieces (43).

4. A non-porous blade holder unit according to claim 3, characterized in that: the clamp unit further comprises a lock nut (44), second counter bores (4131) are formed in the lower surfaces of the two ends of the base body (41), the second counter bores (4131) are communicated with the first center holes (4141), the radius of the second counter bores (4131) is larger than that of the first center holes (4141), and the lock nut (44) is located in the second counter bores (4131) and matched with the locking piece (43).

5. The holder unit for a non-porous blade according to any one of claims 1 to 4, characterized in that: let the length of depression bar body of rod (51) be L4, length when spring (52) compress tightly is L6, is used for placing the length of depression bar counter bore (4111) of spring (52) is L1, two the nearest distance of boss (411) is L3, satisfies: L4+L6 < L1+L3.

6. The non-porous blade jig unit according to claim 5, wherein: let the length of depression bar counter bore (4111) that does not place spring (52) be L2, let the length when spring (52) are lax be L5, satisfy: L4+L5 > L1+L2+L3.

7. The non-porous blade jig unit according to claim 6, wherein: the method meets the following conditions: l4 > L2+L3.

8. The holder unit for a non-porous blade according to any one of claims 2 to 4, characterized in that: the fixture unit comprises a magnetic part (6), a magnet sinking table hole (4132) is formed in the lower surface of the base body (41), the magnetic part (6) is arranged in the magnet sinking table hole (4132), and the magnetic part (6) is used for magnetically adsorbing the non-porous blade (7).

9. The non-porous blade jig unit according to claim 8, wherein: let the width of magnet sinking platform hole (4132) be B1, the length of pore-free blade (7) is L8, the interval between two sword groove (4222) in the sword groove group is L7, satisfies: l7 is more than L8 is more than B1, and L7-L8 is less than L8-B1.

10. The non-porous blade jig unit according to claim 9, wherein: the magnetic part (6) comprises a magnet (61) and supporting bodies (62) positioned at two ends of the magnet (61), the height of the magnet (61) relative to the supporting bodies (62) is H3, and the distance between the bottom surface of the magnet sinking platform hole (4132) and the upper surface of the base body (41) is H4, so that H2 > H3-H4 > 0 is satisfied.

11. The non-porous blade jig unit according to claim 10, wherein: the depth of the magnet sinking platform hole (4132) is set to be H6, and the height of the support body (62) is set to be H5, so that H5-H6 is more than 0.

12. A non-porous insert holder, characterized in that: comprising a tray (8) and the jig unit for a hole-free blade according to any one of claims 1 to 11, the tray (8) being of a frame structure, both ends of a base body (41) of the jig unit being mounted on the tray (8).

13. A non-porous insert holder, characterized in that: comprising a holder and a holder unit for a non-porous blade according to any one of claims 8 to 11, the holder comprising a spindle (9), the holder unit being mounted on the spindle (9).

14. A method of using the non-porous blade holder unit according to any one of claims 1 to 11, characterized in that: the method comprises the following steps:

s1, sand blasting cleaning is carried out on a hole-free blade (7), the distance between two limiting plate units (42) of a clamp unit and a cutter groove (4222) is adjusted, the hole-free blade (7) is placed into the cutter groove (4222), the limiting plate units (42) are locked, and two ends of a compression rod body (51) are respectively inserted into compression rod sinking platform holes (4111) to compress the hole-free blade (7);

s2, coating the non-porous blade (7) subjected to sand blasting cleaning in the step S1, placing the magnetic part (6) in a magnet sinking table hole (4132) to magnetically adsorb the non-porous blade (7), wherein the clamp unit for the non-porous blade does not comprise a compression assembly (5), only the magnetic part (6) is used for fixing the non-porous blade (7), and the top surface of the non-porous blade (7) is free from shielding;

s3, carrying out surface treatment on the non-hole blade (7) subjected to the coating treatment in the step S2, respectively inserting two ends of the compression bar body (51) into compression bar sinking table holes (4111) to press the non-hole blade (7), wherein the clamp unit for the non-hole blade does not place the magnetic part (6).