Groove machining cutter bar and spanner used for prying groove machining cutter bar

Abstract

The utility model relates to the technical field of cutting machining, in particular to a groove machining cutter bar and a wrench used for prying the groove machining cutter bar. The groove machining cutter bar comprises a cutter body, a blade clamping structure is arranged on the cutter body, and the blade clamping structure comprises an upper clamp, a lower clamp and a locking piece. The rear end of the upper clamp is connected with the rear end of the lower clamp; a blade groove used for clamping a blade and an elastic opening located in the rear side of the blade groove and communicated with the blade groove are formed between the upper clamp and the lower clamp, and the elastic opening is used for embedding a wrench head used for opening the blade groove. The locking piece is arranged on the upper clamp and is connected with the lower clamp, or the locking piece is arranged on the lower clamp and is connected with the upper clamp, and the locking piece is used for locking the upper clamp and the lower clamp so as to reduce the opening degree of the blade groove; a groove used for containing the wrench head is formed in the lower wall of the elastic opening, and the groove is provided with a smooth supporting face used for abutting against the supporting part of the wrench head. The utility model further relates to a wrench used for prying the groove machining cutter bar.

Description

TECHNICAL FIELD

[0001] The utility model relates to cutting processing technical field, especially a kind of slot processing tool holder and spanner for prying slot processing tool holder. BACKGROUND

[0002] Slot processing tool holder is a kind of cutting tool commonly used on machine tool, mainly used for accurately processing the slot part on workpiece, and common slot processing tool holder includes right-angle slot tool holder, T-slot tool holder, V-slot tool holder, U-slot tool holder and circular slot tool holder etc..The existing slot processing tool holder includes tool body, tool body is equipped with blade clamping structure, blade clamping structure has blade slot for clamping blade, and elastic opening in the rear side of blade slot and communicated with blade slot, elastic opening is used for embedding spanner head for prying blade slot.In installing blade to slot processing tool holder, it needs to pry elastic opening on slot processing tool holder first with tool, such as hexagonal head spanner, to increase the opening of blade slot, then blade is inserted in blade slot, finally blade is fixed in blade slot with locking screw.

[0003] However, the existing slot processing tool holder has the problem that blade slot and elastic opening gradually become smaller when not in use, for example, when not in use, operators often lock the screw on the tool holder for fear of losing the screw for locking the upper clamp and the lower clamp, and even if the screw is removed, the elasticity of the opening will not recover after long-term non-use; in addition, the elastic opening on the existing slot processing tool holder is a linear gap, so when the elastic opening becomes smaller, it is not convenient for the tool to be embedded, such as the spanner head of the hexagonal head spanner. Moreover, the elastic opening with linear gap structure cannot limit the spanner head and provide linear and continuous support for the spanner head during the process of rotating the spanner head to pry the blade slot, which is easy to cause damage to the slot processing tool holder.

[0004] In addition, a crowbar or spanner is commonly used to pry the elastic opening of the slot processing tool holder, and both the crowbar and the spanner are mainly in the form of a cylinder or a hexagonal prism, which has some drawbacks during the prying process. For example, the cylindrical crowbar needs to use the lever principle to pry open the elastic opening because the distance from each force point on the circumference to the center of rotation is equal during rotation, so the torque is not easy to control, and the slot processing tool holder is easily damaged due to improper torque control; although the hexagonal spanner, i.e. the hexagonal head spanner, can pry open the elastic opening by using the vertex of the cross section during rotation, the profile of the cross section is nonlinear and continuously changing, so the prying torque applied by the rotating hexagonal head spanner is explosive, without a buffer time for the elastic opening, but suddenly prying it open, which also easily damages the slot processing tool holder. SUMMARY

[0005] In order to solve the problem that the elastic opening of the existing slot processing tool bar is not convenient to embed the wrench head after the elastic opening is small, and the elastic opening cannot limit the wrench head and provide linear and continuous support, the utility model provides a slot processing tool bar.

[0006] The utility model discloses a technical scheme that solves the above technical problem: slot processing tool bar, including tool body, be equipped with blade clamping structure on tool body, and blade clamping structure includes upper clamp, lower clamp and locking piece,

[0007] Upper clamp is in the upside of lower clamp, and the rear end is connected with the rear end of lower clamp, and the blade groove for clamping blade is formed between upper clamp and lower clamp, and the elastic opening in the rear side of blade groove and the communication of blade groove, and the elastic opening is used for embedding the wrench head that pries open blade groove,

[0008] Locking piece is arranged on upper clamp and is connected with lower clamp, or is arranged on lower clamp and is connected with upper clamp, and is used for locking upper clamp and lower clamp to reduce the opening of blade groove,

[0009] The lower wall of elastic opening is provided with the recess for accommodating the wrench head, and the recess has a smooth support surface for abutting against the support part of the wrench head.

[0010] Further, the cross section of the recess is hexagonal, the top edge of the hexagon corresponds to the slot of the recess, the remaining edges of the hexagon correspond to the five side walls of the recess respectively, and any two adjacent side walls are connected by an arc transition surface.

[0011] Further, the recess is a circular arc groove.

[0012] In order to cooperate with the slot processing tool bar provided by the utility model for use, the upper clamp is linearly and continuously applied with prying force, the blade groove and the elastic opening are gently pried open, the utility model further provides a wrench for prying open the slot processing tool bar, which comprises a wrench head, and the wrench head comprises a support part and a pressing part; the support part is used for abutting against the smooth support surface of the recess to provide support for the wrench head; the pressing part is used for abutting against the upper wall of the elastic opening to apply extrusion to the upper clamp; the support part and the pressing part are both outwardly protruding arc structures, the circumferential side of the pressing part has a first extrusion point and a second extrusion point, and the distance between the first extrusion point and the rotational center line of the wrench head is farther than the distance between the second extrusion point and the rotational center line of the wrench head.

[0013] Further, the wrench head is an elliptical cylinder with an elliptical cross section, and the support part and the pressing part are both side parts of the elliptical cylinder.

[0014] Further, the wrench comprises a wrench seat and a wrench handle, the wrench seat is provided with a first insertion hole and a second insertion hole, the connecting part of the wrench head is connected with the first insertion hole, and the wrench handle is connected with the second insertion hole.

[0015] Further, the wrench seat is a cuboid structure, the wrench seat comprises a first side, a second side, a third side and a fourth side, the first side is adjacent to the second side, and the third side and the fourth side are adjacent to each other;

[0016] The first insertion hole is a first L-shaped through hole, and two hole openings of the first L-shaped through hole are respectively located on the first side and the second side;

[0017] The second insertion hole is a second L-shaped through hole, and two hole openings of the second L-shaped through hole are respectively located on the third side and the fourth side.

[0018] Further, the wrench head is two, one end of the wrench head is connected with the first insertion hole through the hole opening on the first side, and the other end of the wrench head is connected with the first insertion hole through the hole opening on the second side.

[0019] Further, the wrench head is L-shaped, one end of the wrench head is arranged to protrude from the hole opening on the first side, and the other end of the wrench head is arranged to protrude from the hole opening on the second side.

[0020] Further, the second insertion hole is a hexagonal hole, the wrench handle is a hexagonal head wrench, one end of the hexagonal head wrench is arranged to protrude from the hole opening on the third side, and the other end of the hexagonal head wrench is arranged to protrude from the hole opening on the fourth side.

[0021] Compared with the prior art, the utility model has the advantages that:

[0022] 1、the groove machining cutter bar in the utility model includes the blade groove and the elastic opening which are communicated with each other, and the recess for accommodating the wrench head is formed in the lower wall of the elastic opening, and the recess has the smooth supporting surface 511 which abuts against the supporting portion of the wrench head.Compared with the existing groove machining cutter bar, the groove machining cutter bar in the application has the recess specially used for accommodating the wrench head, so that the wrench head can be easily embedded even when the elastic opening is small, and the wrench head can be limited during rotation, and the smooth supporting surface 511 on the recess can provide linear and continuous supporting action for the supporting portion of the wrench head, so that the wrench head can be linearly and continuously rotated during prying of the elastic opening, and the wrench head can gently pry the blade groove and the elastic opening, so as to avoid damage to the groove machining cutter bar.

[0023] 2、The wrench head in the utility model includes the support part and the extrusion part which are outwardly protruding arc structures, and the extrusion part has a first extrusion point and a second extrusion point on the circumferential side, and the distance between the first extrusion point and the rotation center line of the wrench head is farther than the distance between the second extrusion point and the rotation center line of the wrench head. In the process of rotating the wrench head to pry open the elastic opening, the second extrusion point can first contact the upper wall of the elastic opening, and then the wrench head is rotated, and since the extrusion part is outwardly protruding arc structure, the upper clamp is gradually pried upward as the first extrusion point approaches the upper wall of the elastic opening, that is, the prying force is linearly and continuously applied to the upper clamp, the blade slot and the elastic opening are gently pried open, and compared with the force suddenly increased on the upper wall of the elastic opening when the hexagonal head wrench in the prior art prys open the elastic opening, the elastic opening is pried open at once, the wrench is more friendly to the slot processing cutter bar, the slot processing cutter bar is basically not damaged, and the service life of the slot processing cutter bar is prolonged.

[0024] 3、Further, the wrench is provided with a wrench seat and a wrench handle, and a first insertion hole matched with the connecting part of the wrench head is formed in the wrench seat, and a second insertion hole matched with the connecting part of the wrench handle is formed in the wrench seat, so that when the wrench head is rotated to pry open the slot processing cutter bar, the wrench head is only needed to be inserted into the first insertion hole, the wrench handle is inserted into the second insertion hole, the wrench handle is held, and the wrench seat is rotated to drive the wrench head to rotate and pry open the elastic opening of the slot processing cutter bar. The wrench handle lengthens the force arm of the wrench, and compared with the wrench without the wrench handle, the wrench in the application can generate larger torque with smaller force, and is more convenient to use. BRIEF DESCRIPTION OF DRAWINGS

[0025] Figure 1 It is a perspective view of the slot processing cutter bar of the utility model;

[0026] Figure 2 It is a perspective view of the wrench for prying open the slot processing cutter bar of the utility model;

[0027] Figure 3 It is a perspective view of the wrench for prying open the slot processing cutter bar of the utility model; Figure 2

[0028] Figure 4 It is a use diagram of the wrench for prying open the slot processing cutter bar of the utility model and the slot processing cutter bar (initial state);

[0029] Figure 5 It is a use diagram of the wrench for prying open the slot processing cutter bar of the utility model and the slot processing cutter bar (use state);

[0030] Figure 6 It is a principle diagram of the wrench head of the wrench for prying open the slot processing cutter bar of the utility model prying open the slot processing cutter bar.

[0031] ​Reference numerals: 1. Blade body; 2. Clamping structure; 21. Upper clamp; 22. Lower clamp; 23. Locking element; 3. Blade; 4. Blade groove; 5. Elastic opening; 51. Groove; 511. Smooth support surface; 52. First gap; 53. Second gap; 6. Wrench head; 61. Support part; 62. Pressing part; 7. Wrench base; 71. First insertion hole; 72. Second insertion hole; 8. Wrench handle. Detailed Implementation

[0032] The following is in conjunction with the appendix Figures 1-6 This utility model will be described in detail.

[0033] like Figure 1 As shown, this utility model provides a grooving tool holder, including a tool body 1, on which a blade clamping structure 2 is provided. The blade clamping structure 2 includes an upper clamp 21, a lower clamp 22, and a locking member 23. The upper clamp 21 is located above the lower clamp 22, and its rear end is connected to the rear end of the lower clamp 22. A blade groove 4 for clamping a blade 3 is formed between the upper clamp 21 and the lower clamp 22, and an elastic opening 5 is located behind the blade groove 4 and communicates with the blade groove 4. The elastic opening 5 is used to insert a wrench head 6 for prying open the blade groove 4. The locking member 23 is provided on the upper clamp 21 and connected to the lower clamp 22, or is provided on the lower clamp 22 and connected to the upper clamp 21, for locking the upper clamp 21 and the lower clamp 22 to reduce the opening of the blade groove 4. A groove 51 for accommodating the wrench head 6 is provided on the lower wall of the elastic opening 5. The groove 51 has a smooth support surface 511 for abutting against the support part 61 of the wrench head 6.

[0034] It is understandable that:

[0035] 1) The presence of the groove 51 facilitates the insertion of tools such as the wrench head 6 that pry open the elastic opening 5, so that even after the elastic opening 5 becomes smaller, the wrench head 6 can still be inserted into the groove 51. Compared with the elastic opening 5 without the groove 51, after the elastic opening 5 becomes smaller, a hammer or other auxiliary tools are needed to pry open the elastic opening 5. The groove 51 in this application allows the elastic opening 5 to be pried open without additional auxiliary tools, and can also limit the wrench head 6 during rotation to prevent the wrench head 6 from slipping during the process of prying open the elastic opening 5.

[0036] 2) The groove 51 has a smooth supporting surface 511 abutting against the supporting part 61 of the wrench head 6, such as a smooth supporting surface 511 of a circular arc structure, a smooth supporting surface 511 of an elliptical arc structure, a smooth supporting surface 511 of a flat structure, or a smooth supporting surface 511 formed by combining a flat surface and an arc surface, etc., which can provide linear and continuous support for the supporting part 61 of the wrench head 6, facilitating the linear and continuous rotation of the wrench head 6 during prying open of the elastic opening 5, thereby facilitating the wrench head 6 to gently pry open the blade groove 4 and the elastic opening 5, so as not to damage the slot processing tool bar.

[0037] Specifically, the elastic opening 5 includes a first gap 52 communicating with the blade groove 4 and a second gap 53 communicating with the groove 51, and the second gap 53 is of an arc structure curved toward the lower rear. The second gap 53 is arranged to be of an arc structure curved toward the lower rear because, compared with the linear gap in the prior art, the arc structure of the second gap 53 makes the force smaller when prying open the blade groove 4, saving labor, i.e., a smaller force can pry open the arc structure of the second gap 53, so that the opening degree of the blade groove is equal to that when the linear gap is used. At the same time, the smooth supporting surface 511 also makes the wrench head 6 linear and gentle when prying open the elastic opening 5, without damaging the slot processing tool bar, prolonging the service life of the slot processing tool bar.

[0038] Further, as shown in Figure 1 the cross section of the groove 51 is hexagonal, the top edge of the hexagon corresponds to the slot of the groove 51, the remaining edges of the hexagon correspond to the five side walls of the groove 51 respectively, and any two adjacent side walls of the groove 51 are connected by an arc transition surface.

[0039] The groove 51 of this structure has the advantages that the cross section of the groove 51 is hexagonal, and the arc transition surface is arranged between the two adjacent side walls of the groove 51, so that the side walls of the groove 51 are linearly and continuously smoothly transitioned, which can provide linear and continuous support for the wrench head 6, making the wrench head 6 rotate linearly and continuously during prying open of the elastic opening 5, thereby facilitating the wrench head 6 to gently pry open the blade groove 4 and the elastic opening 5.

[0040] As shown in Figure 6 the principle diagram for prying open the slot processing tool bar by the wrench head 6, the groove 51 can also be a circular arc groove. The inner wall of the circular arc groove 51 is of a smooth arc structure as a whole, so it will not cause the wrench head 6 to abruptly extrude the upper wall of the elastic opening 5, and the circular arc groove 51 itself is a linear structure, which can provide linear and continuous support for the wrench head, so that the wrench head 6 rotates linearly in the groove 51 whether clockwise or counterclockwise, and can gently pry open the blade groove 4 and the elastic opening 5, and basically will not damage the slot processing tool bar.

[0041] Similarly, the recess 51 can also be an elliptical groove, the long axis direction of the elliptical groove is consistent with the extension direction of the first gap 52, the short axis direction of the elliptical groove is perpendicular to the extension direction of the first gap 52, when prying the blade groove 4, the wrench head 6 rotates clockwise or counterclockwise, when rotating to the abutting of the extrusion part 62 and the upper clamp 21, since the length of the long axis is greater than the distance between the upper wall of the elastic opening 5 and the bottom wall of the recess 51, thereby toppling the upper clamp 21.

[0042] As shown in the drawings, the utility model discloses a slot processing cutter bar prying wrench, including wrench head 6, wrench head 6 includes support part 61 and extrusion part 62, support part 61 is used to abut with the smooth support surface 511 of recess 51 to provide support for wrench head 6, and extrusion part 62 is used to abut with the upper wall of elastic opening 5 to apply extrusion to upper clamp 21, and support part 61 and extrusion part 62 are both outwardly protruding arc configurations, and the circumferential side of extrusion part 62 has first extrusion point and second extrusion point, and the distance between first extrusion point and the rotation center line of wrench head 6 is farther than the distance between second extrusion point and the rotation center line of wrench head 6. Figure 2

[0043] It needs to be understood that support part 61 and extrusion part 62 are both part of wrench head 6, not two separate components, and support part 61 refers to the part of wrench head 6 that provides support for wrench head 6, that is, the part of wrench head 6 that abuts with the smooth support surface 511 of recess 51 and plays a supporting role when prying the blade groove 4, and extrusion part 62 is the part of wrench head 6 that applies extrusion to upper clamp 21 during use and prys the blade groove 4.

[0044] Specifically, the circumferential side of extrusion part 62 has first extrusion point and second extrusion point, and the distance between first extrusion point and the rotation center line of wrench head 6 is farther than the distance between second extrusion point and the rotation center line of wrench head 6. In this way, during the rotation of wrench head 6, second extrusion point first contacts the upper wall of elastic opening 5, and then first extrusion point approaches the upper wall of elastic opening 5, and upper clamp 21 is also gradually prised upward during the rotation, that is, linear and continuous prying force is applied to upper clamp 21, and the blade groove 4 and elastic opening 5 are gently pried open, compared to the sudden increase in force applied to the upper wall of elastic opening 5 when the existing hexagonal head wrench or crowbar is used to pry the elastic opening 5, and the elastic opening 5 is pried open in an instant, the wrench in the utility model is more friendly to the slot processing cutter bar, and the slot processing cutter bar is basically not damaged, thereby prolonging the service life of the slot processing cutter bar.

[0045] ​Considering the wrench head 6 in an elliptical cylindrical shape, its own structure is linear structure, when the elastic opening 5 is pried open in the groove 51 with a smooth supporting surface 511, its prying mode must be linear, therefore, the wrench head 6 in the application is preferably an elliptical cylinder with an elliptical cross section, and the supporting part 61 and the extruding part 62 are both side parts of the elliptical cylinder.

[0046] In order to rotate the wrench head 6 more conveniently and labor-savingly, and better control the torque, as shown in Figure 2 and Figure 3 , the wrench in the application further comprises a wrench seat 7 and a wrench handle 8, the wrench seat 7 is provided with a first insertion hole 71 and a second insertion hole 72, the connecting part of the wrench head 6 is connected with the first insertion hole 71 in a matched mode, and the wrench handle 8 is connected with the second insertion hole 72 in a matched mode.

[0047] The shape of the wrench seat 7 is not limited, which can be spherical, cylindrical, triangular prism, etc., and the wrench seat 7 in the application is preferably a cuboid structure with good stability, convenient positioning and installation.

[0048] The wrench seat 7 in the cuboid structure comprises a first side, a second side, a third side and a fourth side, the first side is adjacent to the second side, and the third side is adjacent to the fourth side; the first insertion hole 71 is a first L-shaped through hole, and two hole openings of the first L-shaped through hole are respectively located on the first side and the second side; the second insertion hole 72 is a second L-shaped through hole, and two hole openings of the second L-shaped through hole are respectively located on the third side and the fourth side.

[0049] Specifically, the number of the wrench head 6 can be one, and the wrench head 6 is in L shape, one end of the wrench head 6 extends from the hole opening on the first side, and the other end of the wrench head 6 extends from the hole opening on the second side. The wrench head 6 can also be two, one connecting part of the wrench head 6 passes through the hole opening on the first side and is connected with the first insertion hole 71 in a matched mode, and the other connecting part of the wrench head 6 passes through the hole opening on the second side and is connected with the first insertion hole 71 in a matched mode.

[0050] When the wrench head 6 is two, the connection mode of the wrench head 6 and the first insertion hole 71 can be detachable connection such as plug-in connection or threaded connection, so that the wrench head 6 can be detached from the wrench seat 7 when not in use, or replaced in time in case of damage.

[0051] Further, the hole opening of the first insertion hole 71 is designed as an ellipse matched with the elliptical cylindrical wrench head 6, the second insertion hole 72 is designed as a hexagonal hole, the wrench handle 8 is a hexagonal head wrench, one end of the hexagonal head wrench extends from the hole opening on the third side, and the other end of the hexagonal head wrench extends from the hole opening on the fourth side.

[0052] The wrench handle 8 is provided as a hexagonal wrench mainly due to the following two reasons: one is that when the blade 3 is clamped and the upper clamp 21 and the lower clamp 22 need to clamp the blade 3, since the existing slot machining tool bar locking screw is usually an internal hexagonal screw, the hexagonal wrench can be directly used to tighten the locking screw; the second is that the hexagonal wrench is provided as a handle of the wrench, which can directly hold the hexagonal wrench when the wrench is turned to pry open the slot machining tool bar, and the wrench head 6 is easily turned.

[0053] Since the wrench seat 7 is a rectangular structure, there are edges between any two adjacent surfaces, therefore, in consideration of the safety of the wrench seat 7 when in use and in order to reduce stress concentration, improve the strength and durability of the wrench seat 7, a circular arc chamfer is provided between any two adjacent surfaces of the wrench seat 7.

[0054] When the wrench provided by the utility model is used to pry open the slot machining tool bar, as shown in Figure 4 and Figure 5 , the wrench head 6 is first inserted into the groove 51 and the second extrusion point of the extrusion part 62 contacts the upper wall of the elastic opening 5, then the wrench handle 8 is held, the wrench head 6 is rotated, the upper clamp 21 is gradually prised upward as the first extrusion point slowly approaches the upper wall of the elastic opening 5, until the opening of the blade slot 4 reaches the required opening for the blade 3 to be put into the blade slot 4.

[0055] It should be understood that those skilled in the art can make improvements or changes according to the above description, and all these improvements and changes shall belong to the protection scope of the appended claims of the utility model.

Claims

1. A groove machining tool bar, comprising a tool body (1) provided with a blade clamping structure (2), the blade clamping structure (2) comprising an upper clamp (21), a lower clamp (22) and a locking member (23); the upper clamp (21) is located on the upper side of the lower clamp (22), and the rear end of the upper clamp (21) is connected with the rear end of the lower clamp (22); a first gap (4) for clamping a blade (3) is formed between the upper clamp (21) and the lower clamp (22), and a second gap (5) located on the rear side of the first gap (4) and communicating with the first gap (4) is used for embedding a wrench head (6) for opening the first gap (4); the locking member (23) is arranged on the upper clamp (21) and connected with the lower clamp (22), or arranged on the lower clamp (22) and connected with the upper clamp (21), and used for locking the upper clamp (21) and the lower clamp (22) to reduce the opening of the first gap (4); characterized in that a recess (51) for accommodating the wrench head (6) is arranged on the lower wall of the second gap (5), and the recess (51) has a smooth supporting surface (511) for abutting against a supporting portion (61) of the wrench head (6).

2. The slotting tool bar according to claim 1, characterized in that: The cross section of the recess (51) is hexagonal, the top edge of the hexagon corresponds to the slot of the recess (51), the remaining edges of the hexagon correspond to the five side walls of the recess (51) respectively, and any two adjacent side walls are connected by an arc transition surface.

3. The slotting tool bar according to claim 1, wherein: The recess (51) is a circular arc groove.

4. A wrench for prying a slotting tool bar, the slotting tool bar being the slotting tool bar according to any one of claims 1 to 3, comprising a wrench head (6), the wrench head (6) comprising a supporting portion (61) and a pressing portion (62); the supporting portion (61) is configured to abut against the smooth supporting surface (511) of the groove (51) to provide support for the wrench head (6); the pressing portion (62) is configured to abut against the upper wall of the second gap (5) to apply a pressing force to the upper clamp (21); characterized in that: The supporting portion (61) and the extrusion portion (62) are both outwardly protruding arc structures, the circumferential side of the extrusion portion (62) has a first extrusion point and a second extrusion point, and the distance between the first extrusion point and the rotational center line of the wrench head (6) is farther than the distance between the second extrusion point and the rotational center line of the wrench head (6).

5. A wrench for prying a slotting tool bar according to claim 4, characterized in that: The wrench head (6) is an elliptical cylinder with an oval cross section, and the supporting portion (61) and the extrusion portion (62) are both side portions of the elliptical cylinder.

6. A wrench for prying a slotting tool bar according to claim 5, characterized in that: The wrench head (6) comprises a wrench seat (7) and a wrench handle (8), the wrench seat (7) is provided with a first insertion hole (71) and a second insertion hole (72), the connecting portion of the wrench head (6) is connected with the first insertion hole (71), and the wrench handle (8) is connected with the second insertion hole (72).

7. A wrench for prying a slotting tool bar according to claim 6, characterized in that: The wrench seat (7) is a cuboid structure, and the wrench seat (7) comprises a first side, a second side, a third side and a fourth side, the first side is adjacent to the second side, and the third side and the fourth side are adjacent; the first insertion hole (71) is a first L-shaped through hole, and the two hole openings of the first L-shaped through hole are located on the first side and the second side respectively; the second insertion hole (72) is a second L-shaped through hole, and the two hole openings of the second L-shaped through hole are located on the third side and the fourth side respectively.

8. A wrench for prying a slotting tool bar according to claim 7, characterized in that: The wrench head (6) is two, one of the wrench heads (6) is connected with the first insertion hole (71) through the hole opening on the first side, and the other wrench head (6) is connected with the first insertion hole (71) through the hole opening on the second side.

9. The wrench for prying slotting tool bars according to claim 7, characterized in that: The wrench head (6) is L-shaped, one end of the wrench head (6) extends out of the hole opening on the first side, and the other end of the wrench head (6) extends out of the hole opening on the second side.

10. The wrench for prying slotting tool bars according to claim 6, characterized in that: The second insertion hole (72) is a hexagonal hole, and the wrench handle (8) is a hexagonal wrench, one end of the hexagonal wrench extending from the aperture on the third side surface and the other end of the hexagonal wrench extending from the aperture on the fourth side surface.

Images