Simple swinging head capable of using heavy cutter

Abstract

The utility model discloses a single swing head capable of using a heavy tool, which comprises a spindle box and a base fixedly arranged on the spindle box, and the base is used for connecting a heavy tool apron; the heavy tool apron is provided with a sliding groove, and the heavy tool apron clamps a heavy tool. The base comprises a guide rail, and the sliding groove and the guide rail are matched to limit the sliding groove and the guide rail to move relatively in the axis direction of the heavy tool. One group of locking mechanisms or multiple groups of locking mechanisms are arranged in the base in the axial direction of the heavy tool, each locking mechanism comprises a clamping pin shaft and a driving structure, and the driving structures drive the clamping pin shafts to move in the axial direction perpendicular to the heavy tool; the driving structure drives the clamping pin shaft to extend out of the guide rail, and the clamping pin shaft abuts against the inner wall of the sliding groove to lock the heavy tool apron. The driving structure drives the clamping pin shaft to retract into the guide rail, and the clamping pin shaft is separated from the inner wall of the sliding groove to unlock the heavy tool apron. The driving structure drives and controls the clamping pin shaft to stretch out and draw back so that the base and the heavy tool apron can be locked and unlocked, stable clamping is provided for the heavy tool apron, and machining of a heavy tool is guaranteed.

Description

Technical Field

[0001] This utility model relates to the field of machine tool technology, and in particular to a single swing head that can use heavy-duty cutting tools. Background Technology

[0002] Large aerospace cabin parts are mostly thin-walled and complex curved surfaces. Currently, these parts are mainly processed using horizontal boring, milling and turning machining centers. These machine tools can perform composite machining such as boring, milling, turning, drilling and grinding, and complete all processes in one setup.

[0003] Deep hole machining of large aerospace cabin parts requires heavy-duty tools with long tool holders for five-axis machining. Due to the large length and weight of the tools to be held, and the high precision requirements of the parts, a locking mechanism is needed to provide high clamping stability, which existing general-purpose oscillating heads cannot meet. Utility Model Content

[0004] This invention provides a single swing head that can use heavy-duty cutting tools to solve the above-mentioned technical problems.

[0005] To achieve the above objectives, the technical solution of this utility model is as follows:

[0006] A single-swivel head that can use heavy-duty cutting tools includes a spindle box and a base fixed on the spindle box. The base is used to connect a heavy-duty tool holder. The heavy-duty tool holder is provided with a sliding groove and holds a heavy-duty cutting tool. The base includes a guide rail, and the sliding groove cooperates with the guide rail to limit the relative movement between the sliding groove and the guide rail only along the axial direction of the heavy-duty cutting tool.

[0007] The base is equipped with one or more locking mechanisms along the axial direction of the heavy-duty tool. The locking mechanism includes a clamping pin and a drive structure. The drive structure drives the clamping pin to move along the axial direction perpendicular to the heavy-duty tool. The drive structure drives the clamping pin to extend out of the guide rail, and the clamping pin abuts against the inner wall of the sliding groove to lock the heavy-duty tool holder. The drive structure drives the clamping pin to retract into the guide rail, and the clamping pin disengages from the inner wall of the sliding groove to unlock the heavy-duty tool holder.

[0008] Preferably, the heavy-duty tool holder is also provided with a connecting plate, on which a tool holder is provided. The axis of the tool holder is parallel to the axis of the heavy-duty tool, and the spindle in the spindle box can pull and release the tool holder.

[0009] Preferably, the sliding groove and the guide rail are connected by a dovetail groove.

[0010] Preferably, the drive structure includes a clamping driver and a releasing driver disposed in the base. The clamping driver drives the clamping pin to extend out of the guide rail, and the releasing driver drives the clamping pin to retract into the guide rail.

[0011] Preferably, the end face of the clamping pin facing the inside of the guide rail is provided with a first clamping slope, and the clamping pin is also provided with a first releasing slope;

[0012] The clamping actuator includes a clamping piston with a second clamping ramp on it. The clamping piston is installed in a clamping hydraulic chamber in the base. When the clamping piston moves, the second clamping ramp pushes the first clamping ramp, thereby causing the clamping pin to extend.

[0013] The release actuator includes a release piston with a second release ramp. The release piston is installed in the release hydraulic chamber within the base. When the release piston moves, the second release ramp pushes the first release ramp, thereby causing the clamping pin to retract.

[0014] Preferably, the clamping hydraulic chamber is connected to the clamping oil circuit, and the clamping piston is driven to move by the oil supplied through the clamping oil circuit; the releasing hydraulic chamber is connected to the releasing oil circuit, and the releasing piston is driven to move by the oil supplied through the releasing oil circuit; when the clamping oil circuit is supplied with oil, the releasing oil circuit discharges oil; when the releasing oil circuit is supplied with oil, the clamping oil circuit discharges oil.

[0015] Preferably, the clamping pin is arranged parallel to the bottom of the sliding groove, and the clamping pin passes through one inclined side of the "V" shaped surface of the guide rail;

[0016] The drive structure includes a clamping driver and a releasing driver disposed in the base. The clamping driver drives the clamping pin to extend out of the guide rail, and the releasing driver drives the clamping pin to retract into the guide rail.

[0017] The end face of the clamping pin facing the inside of the guide rail is provided with a first clamping slope, and the clamping pin is also provided with a first releasing slope;

[0018] The clamping actuator includes a clamping piston with a second clamping ramp on it. The clamping piston is installed in a clamping hydraulic chamber in the base. When the clamping piston moves, the second clamping ramp pushes the first clamping ramp, thereby causing the clamping pin to extend.

[0019] The release actuator includes a release piston, which has a second release ramp. The release piston is installed in the release hydraulic chamber inside the base. When the release piston moves, the second release ramp pushes the first release ramp, thereby causing the clamping pin to retract.

[0020] The clamping hydraulic chamber is connected to the clamping oil circuit, and the clamping piston is driven to move by the oil supplied through the clamping oil circuit; the releasing hydraulic chamber is connected to the releasing oil circuit, and the releasing piston is driven to move by the oil supplied through the releasing oil circuit; when the clamping oil circuit is supplied with oil, the releasing oil circuit discharges oil; when the releasing oil circuit is supplied with oil, the clamping oil circuit discharges oil.

[0021] Preferably, both the clamping piston and the releasing piston are arranged perpendicular to the bottom of the sliding groove; the inclination direction of the first clamping inclined surface is opposite to the inclination direction of the inclined surface through which the guide rail is clamped by the pin; the inclination direction of the first releasing inclined surface is opposite to the inclination direction of the first clamping inclined surface.

[0022] Preferably, a guide groove is provided on the side of the clamping pin away from the bottom of the sliding groove, and the head of the release piston is inserted into the guide groove; in the axial direction of the clamping pin: the first release slope is the side wall of the guide groove facing the first clamping slope, and the side wall of the guide groove away from the first clamping slope is separate from the release piston.

[0023] Preferably, the end face of the clamping pin away from the first clamping inclined surface is provided with a third clamping inclined surface, which can fit against the inner wall of the sliding groove.

[0024] Beneficial effects:

[0025] This application discloses a single-swivel head that can use heavy-duty cutting tools. Through a drive structure, the extension and retraction of the clamping pin is controlled to lock and unlock the base and the heavy-duty tool holder, providing stable clamping for the heavy-duty tool holder and ensuring the machining of heavy-duty cutting tools. Attached Figure Description

[0026] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0027] Figure 1 This is a structural schematic diagram of a single swing head that can use heavy-duty tools in the state of not having heavy-duty tools installed, as disclosed in this utility model.

[0028] Figure 2 for Figure 1 A magnified view of part A in the image;

[0029] Figure 3 This is a schematic diagram of the structure of a single swing head that can use heavy-duty cutting tools in the state without a heavy-duty tool holder, as disclosed in this utility model.

[0030] Figure 4 This is a schematic diagram of a single swing head that can use heavy-duty cutting tools, as disclosed in this utility model.

[0031] 1. Base; 11. Guide rail; 2. Heavy-duty tool holder; 21. Sliding groove; 22. Connecting plate; 23. Tool holder; 31. Clamping pin; 32. Clamping piston; 33. Releasing piston; 4. Heavy-duty cutting tool; 5. Spindle box; 6. Cover plate; 7. Protective cover. Detailed Implementation

[0032] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0033] Combination Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown, where Figure 1 The base and guide rail are partially cut to facilitate observation of the internal locking mechanism. A single swing head that can use heavy-duty cutting tools includes a spindle box 5 and a base 1 fixed on the spindle box 5. The base 1 is used to connect a heavy-duty cutting tool holder 2. The heavy-duty cutting tool holder 2 is provided with a sliding groove 21 and holds a heavy-duty cutting tool 4. The base 1 includes a guide rail 11. The sliding groove 21 cooperates with the guide rail 11 to limit the relative movement of the sliding groove 21 and the guide rail 11 to only along the axial direction of the heavy-duty cutting tool 4.

[0034] The base 1 is provided with one or multiple locking mechanisms along the axial direction of the heavy-duty tool 4. The locking mechanism includes a clamping pin 31 and a drive structure. The drive structure drives the clamping pin 31 to move along the axial direction perpendicular to the heavy-duty tool 4. The drive structure drives the clamping pin 31 to extend out of the guide rail 11, and the clamping pin 31 abuts against the inner wall of the sliding groove 21 to lock the heavy-duty tool holder 2. The drive structure drives the clamping pin 31 to retract into the guide rail 11, and the clamping pin 31 disengages from the inner wall of the sliding groove 21 to unlock the heavy-duty tool holder 2.

[0035] Align the sliding groove 21 of the heavy-duty tool holder 2 with one end of the guide rail 11 of the base 1, so that the guide rail 11 passes through the sliding groove 21, thereby installing the heavy-duty tool holder 2 and the base 1 together. At this time, the heavy-duty tool holder 2 can slide along the guide rail 11 of the base 1. The drive structure drives the clamping pin 31 to extend out of the guide rail 11, and the clamping pin 31 abuts against the inner wall of the sliding groove 21. The clamping pin 31 applies a force to the inner wall of the sliding groove 21, so that the guide rail 11 and the sliding groove 21 fit tightly together, thereby locking the heavy-duty tool holder 2 and the base 1. When the drive structure drives the clamping pin 31 to retract into the guide rail 11, the heavy-duty tool holder 2 and the base 1 are unlocked, and the heavy-duty tool holder 2 can slide out along the guide rail 11 of the base 1 to separate the two. The locking mechanism attached to this single swing head provides stable clamping for the heavy-duty tool holder 2. This single swing head has good rigidity and high machining accuracy, thereby ensuring that the single swing head drives the heavy tool to perform five-axis machining.

[0036] Preferably, the heavy-duty tool holder 2 is further provided with a connecting plate 22, on which a tool holder 23 is provided. The axis of the tool holder 23 is parallel to the axis of the heavy-duty tool 4. The spindle in the spindle box 5 can pull and release the tool holder 23. By pulling the tool holder 23 with the spindle, precise positioning can be achieved, realizing control of the relative position of the heavy-duty tool 4 and the spindle, as well as the axial position of the heavy-duty tool 4. The guide rail 11 is aligned with the sliding groove 21 and the tool holder 23 is aligned with the spindle. The guide rail 11 passes into the sliding groove 21. After the sliding groove 21 reaches a certain position, the spindle pulls the tool, realizing the positioning of the heavy-duty tool 4. Then, the heavy-duty tool holder 2 is locked by a locking mechanism. The two locking points further ensure the reliable locking of the heavy-duty tool holder 2.

[0037] Preferably, the sliding groove 21 and the guide rail 11 are connected by a dovetail groove. The dovetail groove connection makes the sliding groove 21 and the guide rail 11 easy to process, simple to assemble, and has a good limiting effect.

[0038] Preferably, the clamping pin 31 is arranged parallel to the bottom of the sliding groove 21, and the clamping pin 31 passes through one inclined side of the "V" shaped surface of the guide rail 11.

[0039] The drive structure includes a clamping driver and a releasing driver disposed in the base 1. The clamping driver drives the clamping pin 31 to extend out of the guide rail 11, and the releasing driver drives the clamping pin 31 to retract into the guide rail 11. After the clamping driver drives the clamping pin 31 to extend out of the guide rail 11, the clamping pin 31 applies a force to one side of the inclined surface of the heavy-duty tool holder 2, so that the other side wall of the sliding groove 21 of the heavy-duty tool holder 2 and the bottom of the groove 21 are tightly attached to the guide rail 11, thereby achieving reliable fixation of the heavy-duty tool holder 2 and the base 1.

[0040] The end face of the clamping pin 31 facing the inside of the guide rail 11 is provided with a first clamping slope, and the clamping pin 31 is also provided with a first releasing slope.

[0041] The clamping actuator includes a clamping piston 32, which has a second clamping ramp. The clamping piston 32 is installed in the clamping hydraulic chamber in the base 1. When the clamping piston 32 is activated, the first clamping ramp and the second clamping ramp come into contact. The second clamping ramp pushes the first clamping ramp, and the first clamping ramp and the second clamping ramp slide relative to each other, thereby causing the clamping pin 31 to extend.

[0042] The release actuator includes a release piston 33, which has a second release ramp. The release piston 33 is installed in the release hydraulic chamber in the base 1. When the release piston 33 is activated, the first release ramp and the second release ramp come into contact. The second release ramp pushes the first release ramp, and the first release ramp and the second release ramp slide relative to each other, thereby causing the clamping pin 31 to retract.

[0043] The clamping hydraulic chamber is connected to the clamping oil circuit, and the clamping piston 32 is driven to move by the oil supplied through the clamping oil circuit; the releasing hydraulic chamber is connected to the releasing oil circuit, and the releasing piston 33 is driven to move by the oil supplied through the releasing oil circuit; when the clamping oil circuit is supplied with oil, the releasing oil circuit discharges oil; when the releasing oil circuit is supplied with oil, the clamping oil circuit discharges oil.

[0044] Preferably, both the clamping piston 32 and the releasing piston 33 are perpendicular to the bottom of the sliding groove 21; the inclination direction of the first clamping inclined surface is opposite to the inclination direction of the inclined surface through which the clamping pin 31 passes on the guide rail 11; the inclination direction of the first releasing inclined surface is opposite to the inclination direction of the first clamping inclined surface. This ensures that when the clamping piston 32 moves towards the bottom of the sliding groove 21, the clamping pin 31 extends; and when the releasing piston 33 moves towards the bottom of the sliding groove 21, the clamping pin 31 retracts.

[0045] Specifically, the clamping hydraulic chamber sequentially includes a clamping piston section and a clamping guide section. The clamping piston section extends to the surface of the base 1 facing the spindle box 5, and the clamping guide section extends to the surface of the guide rail 11 facing the bottom of the sliding groove 21. The clamping piston 32 sequentially includes a first piston and a first push rod. The first piston is installed in the clamping piston section, and the first push rod passes through the clamping guide section, which guides the first push rod.

[0046] The release hydraulic chamber sequentially includes a release piston section and a release guide section, with the release piston section extending to the surface of the base 1 facing the spindle box 5. The release piston 33 sequentially includes a second piston and a second push rod, with the second piston installed inside the release piston section and the second push rod inserted into the release guide section, which guides the second push rod.

[0047] The guide rail 11 has a mounting hole with its axis parallel to the bottom of the sliding groove 21. One end of the mounting hole is located on one side of the inclined surface of the "V" shaped surface of the guide rail 11, and the other end is connected to the clamping guide section. The releasing guide section is connected to the mounting hole, and the clamping pin 31 is set in the mounting hole.

[0048] Specifically, sealing rings are provided between the first piston and the clamping piston section, between the first push rod and the clamping guide section, between the second piston and the releasing piston section, and between the second push rod and the releasing guide section.

[0049] Specifically, the guide rail 11 has an installation groove on the surface facing the bottom of the sliding groove 21. A cover plate 6 is installed in the installation groove. The cover plate 6 is used to block the opening of the clamping guide section to prevent hydraulic oil from leaking into the sliding groove 21.

[0050] Specifically, when the heavy-duty tool 4 is not required, a protective cover 7 is installed on the guide rail 11 to prevent debris from adhering to it. The protective cover 7 is also connected to the guide rail 11 using a dovetail joint.

[0051] Specifically, the second clamping ramp is located at the head of the first push rod, and the second releasing ramp is located at the head of the second push rod.

[0052] Preferably, a guide groove is provided on the side of the clamping pin 31 away from the bottom of the sliding groove 21, and the head of the release piston 33 is inserted into the guide groove; in the axial direction of the clamping pin 31: the first release slope is the side wall of the guide groove facing the first clamping slope, and the side wall of the guide groove away from the first clamping slope is separate from the release piston 33.

[0053] When oil is supplied through the clamping oil circuit, the clamping piston 32 moves toward the bottom of the sliding groove 21, the second clamping inclined surface pushes the first clamping inclined surface, and the clamping pin 31 extends; the first releasing inclined surface pushes the second releasing inclined surface, and the releasing piston 33 moves away from the bottom of the sliding groove 21; the clamping pin 31 abuts against the sliding groove 21 to achieve locking.

[0054] When oil is supplied through the release oil circuit, the release piston 33 moves towards the bottom of the sliding groove 21, the second release ramp pushes the first release ramp, and the clamping pin 31 retracts; the first clamping ramp pushes the second clamping ramp, and the clamping piston 32 moves away from the bottom of the sliding groove 21; the clamping pin 31 is unlocked after it disengages from the sliding groove 21. When the end face of the first piston of the clamping piston 32 abuts against the surface of the spindle box 5, the clamping pin 31 is restricted from further retraction, limiting the retraction position of the clamping pin 31 and preventing the clamping piston 32 from moving too far away from the bottom of the sliding groove 21.

[0055] Specifically, the clamping oil passage and the releasing oil passage are located on the spindle box 5. The clamping oil passage is connected to the clamping piston section, and the releasing oil passage is connected to the releasing piston section.

[0056] Preferably, the end face of the clamping pin 31 away from the first clamping inclined surface is provided with a third clamping inclined surface. The third clamping inclined surface can fit against the inner wall of the sliding groove 21, so that the clamping pin 31 and the sliding groove 21 can achieve surface contact, thereby improving the locking effect of the heavy-duty tool holder 2 and the base 1.

[0057] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this utility model.

Claims

1. A single-swivel head that can use heavy-duty cutting tools, characterized in that, The device includes a spindle box (5) and a base (1) fixed on the spindle box (5). The base (1) is used to connect a heavy-duty tool holder (2). The heavy-duty tool holder (2) is provided with a sliding groove (21) and holds a heavy-duty tool (4). The base (1) includes a guide rail (11). The sliding groove (21) cooperates with the guide rail (11) to limit the relative movement of the sliding groove (21) and the guide rail (11) to be only along the axial direction of the heavy-duty tool (4). The base (1) is provided with one or multiple locking mechanisms along the axial direction of the heavy-duty cutting tool (4). The locking mechanism includes a clamping pin (31) and a driving structure. The driving structure drives the clamping pin (31) to move along the axial direction perpendicular to the heavy-duty cutting tool (4). The driving structure drives the clamping pin (31) to extend out of the guide rail (11). The clamping pin (31) abuts against the inner wall of the sliding groove (21) to lock the heavy-duty cutting tool holder (2). The driving structure drives the clamping pin (31) to retract into the guide rail (11). The clamping pin (31) disengages from the inner wall of the sliding groove (21) to unlock the heavy-duty cutting tool holder (2).

2. A single-swivel head that can use heavy-duty cutting tools according to claim 1, characterized in that, The heavy-duty tool holder (2) is also provided with a connecting plate (22), and the connecting plate (22) is provided with a tool holder (23). The axis of the tool holder (23) is parallel to the axis of the heavy-duty tool (4). The spindle in the spindle box (5) can pull and release the tool holder (23).

3. A single-swivel head that can use heavy-duty cutting tools according to claim 1, characterized in that, The sliding groove (21) and the guide rail (11) are connected by a dovetail groove.

4. A single-swivel head that can use heavy-duty cutting tools according to claim 1 or 3, characterized in that, The drive structure includes a clamping driver and a releasing driver disposed in the base (1). The clamping driver drives the clamping pin (31) to extend out of the guide rail (11), and the releasing driver drives the clamping pin (31) to retract into the guide rail (11).

5. A single-swivel head that can use heavy-duty cutting tools according to claim 4, characterized in that, The clamping pin (31) has a first clamping slope on its end face facing the inside of the guide rail (11), and the clamping pin (31) also has a first releasing slope. The clamping driver includes a clamping piston (32), which has a second clamping ramp. The clamping piston (32) is installed in the clamping hydraulic chamber in the base (1). When the clamping piston (32) moves, the second clamping ramp pushes the first clamping ramp, thereby causing the clamping pin (31) to extend. The release actuator includes a release piston (33), which has a second release ramp. The release piston (33) is installed in the release hydraulic chamber in the base (1). When the release piston (33) moves, the second release ramp pushes the first release ramp, thereby causing the clamping pin (31) to retract.

6. A single-swivel head that can use heavy-duty cutting tools according to claim 5, characterized in that, The clamping hydraulic chamber is connected to the clamping oil circuit, and the clamping piston (32) is driven to move by the oil supplied through the clamping oil circuit; the releasing hydraulic chamber is connected to the releasing oil circuit, and the releasing piston (33) is driven to move by the oil supplied through the releasing oil circuit; when the clamping oil circuit supplies oil, the releasing oil circuit discharges oil; when the releasing oil circuit supplies oil, the clamping oil circuit discharges oil.

7. A single-swivel head that can use heavy-duty cutting tools according to claim 3, characterized in that, The clamping pin (31) is arranged parallel to the bottom of the sliding groove (21), and the clamping pin (31) extends out from one side of the inclined surface of the "V" shaped surface of the guide rail (11); The drive structure includes a clamping driver and a releasing driver disposed in the base (1). The clamping driver drives the clamping pin (31) to extend out of the guide rail (11), and the releasing driver drives the clamping pin (31) to retract into the guide rail (11). The clamping pin (31) has a first clamping slope on its end face facing the inside of the guide rail (11), and the clamping pin (31) also has a first releasing slope. The clamping driver includes a clamping piston (32), which has a second clamping ramp. The clamping piston (32) is installed in the clamping hydraulic chamber in the base (1). When the clamping piston (32) moves, the second clamping ramp pushes the first clamping ramp, thereby causing the clamping pin (31) to extend. The release driver includes a release piston (33), which has a second release ramp. The release piston (33) is installed in the release hydraulic chamber in the base (1). When the release piston (33) moves, the second release ramp pushes the first release ramp, thereby causing the clamping pin (31) to retract. The clamping hydraulic chamber is connected to the clamping oil circuit, and the clamping piston (32) is driven to move by the oil supplied through the clamping oil circuit; the releasing hydraulic chamber is connected to the releasing oil circuit, and the releasing piston (33) is driven to move by the oil supplied through the releasing oil circuit; when the clamping oil circuit supplies oil, the releasing oil circuit discharges oil; when the releasing oil circuit supplies oil, the clamping oil circuit discharges oil.

8. A single-swivel head that can use heavy-duty cutting tools according to claim 7, characterized in that, The clamping piston (32) and the releasing piston (33) are both arranged perpendicular to the bottom of the sliding groove (21); the inclination direction of the first clamping inclined surface is opposite to the inclination direction of the inclined surface through which the guide rail (11) is passed by the clamping pin (31); the inclination direction of the first releasing inclined surface is opposite to the inclination direction of the first clamping inclined surface.

9. A single-swivel head that can use heavy-duty cutting tools according to claim 8, characterized in that, The clamping pin (31) has a guide groove on the side away from the bottom of the sliding groove (21), and the head of the release piston (33) is inserted into the guide groove; in the axial direction of the clamping pin (31): the first release slope is the side wall of the guide groove facing the first clamping slope, and the side wall of the guide groove away from the first clamping slope is separate from the release piston (33).

10. A single-swivel head that can use heavy-duty cutting tools according to claim 7, characterized in that, The end face of the clamping pin (31) away from the first clamping inclined surface is provided with a third clamping inclined surface, which can fit against the inner wall of the sliding groove (21).

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