Quick-change cutter and quick-change method for special equipment for spiral groove machining

Abstract

The invention discloses a quick-change cutter and a quick-change method for special equipment for spiral groove machining. The quick-change cutter comprises a quick-change cutter handle, a lightweight cutter head, a wedge-shaped block, a double-end screw, a cutter clamp pressing block and a cutter body. The quick-change cutter handle and the lightweight cutter head adopt a split structure; one side of the quick-change cutter handle is connected with a spiral groove special equipment main shaft through a positioning pin, a screw hole and a key groove; the other side of the quick-change cutter handle is matched with the cutter head limiting table through the cutter handle limiting table, is positioned with the light-weight cutter head through a limiting surface, is locked through a wedge-shaped block and a double-head screw and counteracts a circumferential gap and an axial gap; and the cutter is arranged in the U-shaped groove of the light-weight cutter head through the cutter clamp pressing block. By arranging the quick-change cutter handle, the cutter of the special equipment for the spiral groove can be quickly disassembled and replaced, and the working efficiency is effectively improved.

Description

Technical Field

[0001] The invention belongs to the field of engineering application and relates to a quick tool changing device for spiral groove special equipment, and specifically relates to a split quick-change tool, which is connected to the main shaft of the spiral groove special equipment by a quick-change tool holder. The quick-change tool holder and the lightweight cutter disc are positioned by a spiral sliding L-shaped slot and positioned and locked by a limit surface to achieve quick tool change. Background Art

[0002] Spiral drilling technology has become the main technical means for gas extraction drilling in soft and protruding coal seams. The spiral drill rod is an important tool for spiral drilling. According to its processing method, it is divided into welded spiral drill rod and integral spiral drill rod. The integral spiral drill rod is machined by spiral groove special equipment. The cutter disc used in the existing spiral groove special equipment is an integrated structure, which is fixed on the main shaft of the equipment feed cutting through pin holes and screws. There are a large number of blades installed on the cutter disc (about 20 pieces). There are currently two ways to replace the blades: (1) disassemble the cutter disc as a whole and replace the cutter disc with the blades pre-installed. This method is less efficient, and the overall disassembly and assembly of the cutter disc is complicated, which will bring many inconveniences; (2) do not disassemble the cutter disc, stop the machine and replace the blades one by one. This method seriously restricts production efficiency and has a high labor intensity. Summary of the invention

[0003] In view of the deficiencies in the prior art, the purpose of the present invention is to provide a quick-changing tool and quick-changing method for special equipment for spiral groove processing. Through a split structural design, the quick installation of the cutter disc can be achieved. The structure is simple and the design is reasonable, which can achieve quick tool change for special equipment for spiral grooves, reduce manual labor intensity, and improve production efficiency, thereby solving the problems of complex blade replacement, high labor intensity, and low efficiency in the prior art.

[0004] In order to solve the above technical problems, the present invention adopts the following technical solutions to achieve the above problems:

[0005] A quick-change tool for special equipment for spiral groove processing, comprising a quick-change tool holder, a lightweight cutter disc, a wedge block, a stud screw, a tool holder pressure block, and a tool;

[0006] The quick-change tool handle and the lightweight cutter disc adopt a split structure; the quick-change tool handle is a circular structure with a central through hole, and a group of tool handle limit platforms evenly distributed in the circumferential direction are provided on the outer side wall of the quick-change tool handle; the lightweight cutter disc is a disc-shaped structure with a mounting hole in the center, and a group of cutter disc limit platforms evenly distributed in the circumferential direction are provided on the inner side wall of the lightweight cutter disc; the quick-change tool handle can be installed in the mounting hole of the lightweight cutter disc and realize circumferential rotation and sliding connection through the cooperation of the tool handle limit platform and the cutter disc limit platform;

[0007] The wedge block is installed between adjacent tool holder limit platforms and tool disc limit platforms through stud screws to position, lock and limit the quick-change tool holder and lightweight tool disc in the circumferential and axial directions;

[0008] The tool is installed in the U-shaped tool groove on the outer side wall of the lightweight tool disc through a tool clamp block;

[0009] The spindle of the special equipment for spiral groove processing is connected with the quick-change tool holder to realize the transmission of torque.

[0010] The present invention also includes the following technical features:

[0011] Specifically, the quick-change tool handle is provided with four screw holes arranged around the central through hole, and a key slot is provided on the bottom surface of the quick-change tool handle; the quick-change tool handle is connected to the main shaft of the special equipment for spiral groove processing through the four screw holes, the central through hole and the key slot, so as to realize the transmission of torque when the special equipment for spiral groove processing is working.

[0012] Specifically, the tool handle limiting platform includes a tool handle arc platform and a tool handle protrusion, and the tool handle protrusion is located at the front end of the tool handle arc platform and protrudes upward and forward relative to the tool handle arc platform.

[0013] Specifically, the cutter disc limiting platform includes a cutter disc arc platform and a cutter disc protrusion. The cutter disc protrusion is located at the rear end of the cutter disc arc platform and protrudes downward and backward relative to the cutter disc arc platform.

[0014] Specifically, the tool handle arc platform is located under the cutter disc arc platform, and the tool handle protrusion can rotate from the gap between adjacent cutter disc limit platforms to the cutter disc protrusion. The front end surface of the tool handle arc platform is the first positioning platform, and the rear end surface of the cutter disc protrusion is the second positioning platform. The first positioning platform and the second positioning platform cooperate to perform circumferential positioning to realize the circumferential rotating and sliding connection between the quick-change tool handle and the lightweight cutter disc.

[0015] Specifically, the rear end surface of the tool handle protrusion is a first inclined surface, and the front end surface of the tool disc arc platform is a second inclined surface;

[0016] The wedge block is arranged in the gap between the rear end of the tool handle protrusion and the front end of the cutter disc arc platform and is located on the tool handle arc platform, and the two side walls of the wedge block are matched with the first inclined surface and the second inclined surface respectively.

[0017] Specifically, a stud screw mounting hole is provided on the wedge block, and a screw mounting hole is provided on the arc-shaped platform of the knife handle; the stud screw mounting hole is opposite to the screw mounting hole and is used for mounting a stud screw.

[0018] Specifically, the bottom surface of the U-shaped knife groove is provided with a fixing screw hole, and the two side walls of the U-shaped knife groove are respectively provided with a positioning groove and a knife groove dense tooth;

[0019] A positioning boss is provided on one side wall of the tool clamp pressure block, and the other side wall is a positioning inclined surface; a threaded hole is also provided on the tool clamp pressure block, and the threaded hole is opposite to the fixing screw hole on the bottom surface of the U-shaped tool groove to fix the tool clamp pressure block in the U-shaped tool groove with the installation screw, and the positioning boss cooperates with the positioning groove on the side wall of the U-shaped tool groove.

[0020] Specifically, the tool is arranged between the positioning bevel and the dense teeth of the tool groove; the tool includes a tool holder seat, the blade is fixed on the tool holder seat, and the back of the tool holder seat is provided with dense teeth that fit with the dense teeth of the tool groove to limit the longitudinal displacement of the tool holder seat.

[0021] The quick-changing method for quick-changing tools of special equipment for spiral groove processing is as follows: the quick-changing tool holder cooperates with the pin shaft on the main shaft of the special equipment for spiral groove processing through bolt holes and keyways to play the role of fixing, connecting and transmitting torque; the quick-changing tool holder and the lightweight cutter disc adopt a split structure, the two are rotated and slid through the tool holder limit platform and the cutter disc limit platform, and are fixed and locked by the positioning platform, wedge block and stud screws to achieve torque transmission and complete fixation during work; the tool is installed on the lightweight cutter disc by the tool clamp pressure block and screws; when changing the tool, there is no need to completely disassemble the quick-changing tool holder, only the lightweight cutter disc with the tool installed in advance needs to be slid off the quick-changing tool holder, so as to realize the quick tool changing process of the special equipment for spiral groove processing.

[0022] Compared with the prior art, the present invention has the following technical effects:

[0023] The quick-changing tool and quick-changing method of the special equipment for spiral grooves in the present invention can realize the rapid replacement of the tool of the equipment, significantly improve the tool changing efficiency of the special equipment for spiral grooves, and the operation is very simple and convenient, which reduces the labor intensity of workers and improves production efficiency.

[0024] The quick-change tool of the present invention is a split structure. By dividing the quick-change tool handle and the lightweight cutter disc into two parts, the quick-change tool handle is connected to the main shaft of the spiral groove special equipment, and the lightweight cutter disc can be disassembled to achieve quick tool change.

[0025] A tool handle limiting platform is arranged between the quick-change tool handle and the lightweight tool disc, and cooperates with the tool disc limiting platform, is installed by sliding and rotating, and is locked by a wedge block to transmit working torque, thereby realizing quick tool change. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is an overall schematic diagram of the quick-change tool of the spiral groove special equipment of the present invention.

[0027] Figure 2 It is a schematic diagram of the back side of the quick-change tool of the spiral groove special equipment of the present invention.

[0028] Figure 3 It is a schematic diagram of the quick-change tool holder of the spiral groove special equipment of the present invention.

[0029] Figure 4 It is a schematic diagram of the lightweight cutter head of the spiral groove special equipment of the present invention.

[0030] Figure 5 Schematic diagram of the present invention: (a) wedge block (b) stud screw (c) tool holder pressure block (d) tool.

[0031] The meaning of each number in the figure is:

[0032] 1. Quick-change tool holder, 2. Lightweight tool disc, 3. Wedge block, 4. Stud screw, 5. Tool clamp block, 6. Tool;

[0033] 11. Tool handle limiting platform, 111. Tool handle arc platform, 112. Tool handle protrusion, 113. First positioning platform, 114. First inclined surface, 12. Screw hole, 13. Keyway;

[0034] 21. Cutter disc limiting platform, 211. Cutter disc arc platform, 212. Cutter disc protrusion, 213. Second positioning platform, 214. Second inclined surface, 22. U-shaped knife groove, 221. Fixing screw hole, 222. Positioning groove, 223. Cutter groove dense teeth;

[0035] 31. Stud screw mounting hole;

[0036] 51. Positioning boss, 52. Positioning slope, 53. Threaded hole;

[0037] 61. Tool holder, 62. Blade, 63. Dense teeth. DETAILED DESCRIPTION

[0038] Specific embodiments of the present invention are given below. It should be noted that the present invention is not limited to the following specific embodiments, and all equivalent changes made on the basis of the technical solution of this application fall within the protection scope of the present invention.

[0039] Embodiment 1:

[0040] like Figures 1 to 5 As shown, this embodiment provides a quick-change tool for special equipment for spiral groove processing, including a quick-change tool holder 1, a lightweight tool disc 2, a wedge block 3, a stud screw 4, a tool clamp pressure block 5, and a tool 6.

[0041] The quick-change tool holder 1 and the lightweight cutter disc 2 adopt a split structure; the quick-change tool holder 1 is a circular structure with a central through hole, and a group of circumferentially evenly distributed tool holder limit platforms 11 are provided on the outer wall of the quick-change tool holder 1; the lightweight cutter disc 2 is a disc-shaped structure with a mounting hole in the center, and a group of circumferentially evenly distributed cutter disc limit platforms 21 are provided on the inner wall of the lightweight cutter disc 2; the quick-change tool holder 1 can be installed in the mounting hole of the lightweight cutter disc 2 and realize circumferential rotation and sliding connection through the cooperation of the tool holder limit platform 11 and the cutter disc limit platform 21; the wedge block 3 is installed between the adjacent tool holder limit platforms 11 and the cutter disc limit platform 21 through the stud screw 4 to position, lock and limit the quick-change tool holder 1 and the lightweight cutter disc 2 in the circumferential and axial directions; the tool 6 is installed in the U-shaped tool groove 22 on the outer wall of the lightweight cutter disc 2 through the tool clamp pressure block 5; the spindle of the special equipment for spiral groove processing is connected with the quick-change tool holder 1 to realize torque transmission.

[0042] The quick-change tool handle 1 is provided with four screw holes 12 arranged around the central through hole, and a key groove 13 is provided on the bottom surface of the quick-change tool handle 1; the quick-change tool handle 1 is connected to the main shaft of the special equipment for spiral groove processing through the four screw holes 12, the central through hole and the key groove 13, so as to realize the transmission of torque when the special equipment for spiral groove processing is working.

[0043] The handle limiting platform 11 comprises a handle arc platform 111 and a handle protrusion 112 . The handle protrusion 112 is located at the front end of the handle arc platform 111 and protrudes upward and forward relative to the handle arc platform 111 .

[0044] The cutter disc limiting platform 21 includes a cutter disc arc platform 211 and a cutter disc protrusion 212 . The cutter disc protrusion 212 is located at the rear end of the cutter disc arc platform 211 and protrudes downward and backward relative to the cutter disc arc platform 211 .

[0045] The above-mentioned front end, forward, rear end, backward and other directions are circumferential directions, specifically referring to: when the quick-change tool holder and the lightweight cutter disc are installed and connected, the rotation direction of the quick-change tool holder relative to the lightweight cutter disc is forward, and the corresponding opposite direction is backward.

[0046] The above-mentioned upward, downward, etc. directions are axial directions, specifically referring to that before the quick-change tool holder and the lightweight cutter disc are installed, the direction of axial movement of the quick-change tool holder relative to the lightweight cutter disc is upward, and the corresponding opposite direction is downward.

[0047] The tool handle arc platform 111 is located under the cutter disc arc platform 211, and the tool handle protrusion 112 can rotate from the gap between adjacent cutter disc limit platforms 21 to the cutter disc protrusion 212. The front end surface of the tool handle arc platform 111 is the first positioning platform 113, and the rear end surface of the cutter disc protrusion 212 is the second positioning platform 213. The first positioning platform 113 and the second positioning platform 213 cooperate to perform circumferential positioning to realize the circumferential rotating and sliding connection between the quick-change tool handle 1 and the lightweight cutter disc 2.

[0048] The rear end face of the tool handle protrusion 112 is a first inclined surface 114, and the front end face of the blade arc platform 211 is a second inclined surface 214; the wedge block 3 is arranged in the gap between the rear end of the tool handle protrusion 112 and the front end of the blade arc platform 211 and is located on the tool handle arc platform 111, and the two side walls of the wedge block 3 are respectively matched with the first inclined surface 114 and the second inclined surface 214.

[0049] The wedge block 3 is provided with a stud screw mounting hole 31, and the tool handle arc platform 111 is provided with a screw mounting hole; the stud screw mounting hole 31 is opposite to the screw mounting hole, and is used to install the stud screw 4. The wedge block plays a role in positioning, locking and limiting the quick-change tool handle and the lightweight tool disc in the circumference and axial direction, and no radial and axial movement occurs during operation. The tool handle arc platform is also provided with a screw hole for fixing the quick-change tool handle and the lightweight tool disc.

[0050] A fixing screw hole 221 is provided on the bottom surface of the U-shaped knife groove 22 , and a positioning groove 222 and knife groove dense teeth 223 are respectively provided on two side walls of the U-shaped knife groove 22 .

[0051] A positioning boss 51 is provided on one side wall of the tool clamp pressure block 5, and a positioning inclined surface 52 is provided on the other side wall; a threaded hole 53 is also provided on the tool clamp pressure block 5, and the threaded hole 53 is opposite to the fixing screw hole 221 on the bottom surface of the U-shaped tool groove 22 to fix the tool clamp pressure block 5 in the U-shaped tool groove 22 with the installation screw; the positioning boss 51 cooperates with the positioning groove 222 on the side wall of the U-shaped tool groove 22. Specifically, when the tool clamp pressure block 5 is installed into the U-shaped tool groove 22, the positioning boss 51 can be inserted into the positioning groove 222 for positioning.

[0052] The tool 6 is arranged between the positioning inclined surface 52 and the tool groove dense teeth 223; the tool 6 includes a tool holder seat 61, a blade 62 is fixed on the tool holder seat 61, and a dense tooth 63 is arranged on the back of the tool holder seat 61 and fits with the tool groove dense teeth 223 to limit the longitudinal displacement of the tool holder seat 61. Specifically, a mounting screw hole is arranged on the tool holder seat to install a screw to fix the blade on the tool holder seat.

[0053] In the present embodiment, there are three tool handle limit platforms and three tool disc limit platforms; correspondingly, there are three groups of tool handle protrusions and their first inclined surfaces, three groups of tool disc arc platforms and their second inclined surfaces; there are three wedge blocks; there are three groups of tool handle arc platforms and their first positioning platforms, three groups of tool disc protrusions and their second positioning platforms; three groups of inclined surfaces and three groups of positioning platforms are respectively used for axial positioning during the installation of quick-change tool handles, lightweight tool discs and wedge blocks.

[0054] In this embodiment, the stud screw is a reverse stud screw, one end of which is connected to the quick-change tool handle and the other end is connected to the wedge block. One turn is equivalent to twice the stroke. The wedge block is installed on the quick-change tool handle through the stud screw, so that the wedge block can position and lock the quick-change tool handle and the lightweight cutter disc in the circumference and axial direction, and radial and axial movement will not occur. The stud screw is used to lock the wedge block, offset the circumferential clearance and axial clearance, prevent the radial and axial movement of the quick-change tool handle during the cutting process, and transmit the working torque.

[0055] Embodiment 2:

[0056] The present embodiment provides a quick-changing method for quick-changing tools of special equipment for spiral groove processing. Before starting work, first check whether the machine tool can operate normally, and prepare the quick-changing tool holder, lightweight tool disc, wedge block, tool pad, blade and screw; the quick-changing tool holder cooperates with the pin shaft on the main shaft of the special equipment for spiral groove processing through four countersunk bolt holes and keyways evenly distributed on the circumference, so as to fix, connect and transmit torque; the quick-changing tool holder and the lightweight tool disc adopt a split structure, and the two are rotated and slid through the tool holder limit table and the tool disc limit table, and are fixed and locked by the positioning table, wedge block and reverse stud screw to achieve torque transmission and complete fixation during work; the tool is installed on the lightweight tool disc through the tool clamp seat, tool clamp pressure block and screws; when changing the tool, there is no need to completely disassemble the quick-changing tool holder, and the lightweight tool disc with the tool installed in advance only needs to slide off the quick-changing tool holder to realize the quick tool change process of the special equipment for spiral groove processing.

[0057] The preferred embodiments of the present invention are described in detail above in conjunction with the accompanying drawings. However, the present invention is not limited to the specific details in the above embodiments. Within the technical concept of the present invention, a variety of simple modifications can be made to the technical solution of the present invention, and these simple modifications all belong to the protection scope of the present invention.

[0058] It should also be noted that the various specific technical features described in the above specific embodiments can be combined in any suitable manner without contradiction. In order to avoid unnecessary repetition, the present invention will not further describe various possible combinations.

[0059] In addition, various embodiments of the present invention may be arbitrarily combined, and as long as they do not violate the concept of the present invention, they should also be regarded as the contents disclosed by the present invention.

Claims

1. A quick-change tool for special equipment for spiral groove processing, characterized in that: It comprises a quick-change tool holder (1), a lightweight tool disc (2), a wedge block (3), a double-headed screw (4), a tool clamping block (5), and a tool (6); The quick-change tool handle (1) and the lightweight cutter disc (2) adopt a split structure; the quick-change tool handle (1) is a circular structure with a central through hole, and a group of tool handle limit platforms (11) evenly distributed in the circumferential direction are provided on the outer side wall of the quick-change tool handle (1); the lightweight cutter disc (2) is a disc-shaped structure with a mounting hole in the center, and a group of cutter disc limit platforms (21) evenly distributed in the circumferential direction are provided on the inner side wall of the lightweight cutter disc (2); the quick-change tool handle (1) can be installed in the mounting hole of the lightweight cutter disc (2) and realize circumferential rotation and sliding connection through the cooperation of the tool handle limit platform (11) and the cutter disc limit platform (21); The wedge block (3) is installed between adjacent tool holder limiting platforms (11) and tool disc limiting platforms (21) via stud screws (4) to position, lock and limit the quick-change tool holder (1) and the lightweight tool disc (2) in the circumferential and axial directions; The tool (6) is installed in a U-shaped tool groove (22) on the outer side wall of the lightweight tool disc (2) via a tool clamping block (5); The main shaft of the special equipment for spiral groove processing is connected with a quick-change tool holder (1) to realize torque transmission.

2. The quick-change tool for spiral groove processing equipment according to claim 1, characterized in that: The quick-change tool holder (1) is provided with screw holes (12) arranged around the central through hole, and a keyway (13) is provided on the bottom surface of the quick-change tool holder (1); the quick-change tool holder (1) is connected to the main shaft of the special equipment for spiral groove processing via the screw holes (12), the central through hole and the keyway (13), so that torque can be transmitted when the special equipment for spiral groove processing is working.

3. The quick-change tool for spiral groove processing equipment according to claim 1, characterized in that: The tool handle limiting platform (11) comprises a tool handle arc platform (111) and a tool handle protrusion (112), wherein the tool handle protrusion (112) is located at the front end of the tool handle arc platform (111) and protrudes upward and forward relative to the tool handle arc platform (111).

4. The quick-change tool for special equipment for spiral groove processing according to claim 3, characterized in that: The cutter disc limiting platform (21) comprises a cutter disc arc platform (211) and a cutter disc protrusion (212); the cutter disc protrusion (212) is located at the rear end of the cutter disc arc platform (211) and protrudes downward and backward relative to the cutter disc arc platform (211).

5. The quick-change tool for special equipment for processing spiral grooves according to claim 4, characterized in that: The tool handle arc platform (111) is located under the cutter disc arc platform (211); the tool handle protrusion (112) can rotate from the gap between adjacent cutter disc limit platforms (21) to the cutter disc protrusion (212); the front end surface of the tool handle arc platform (111) is a first positioning platform (113); the rear end surface of the cutter disc protrusion (212) is a second positioning platform (213); the first positioning platform (113) and the second positioning platform (213) cooperate to perform circumferential positioning, thereby realizing a circumferential rotational sliding connection between the quick-change tool handle (1) and the lightweight cutter disc (2).

6. The quick-change tool for spiral groove processing equipment according to claim 4, characterized in that: The rear end surface of the handle protrusion (112) is a first inclined surface (114), and the front end surface of the blade arc platform (211) is a second inclined surface (214); The wedge block (3) is arranged in the gap between the rear end of the handle protrusion (112) and the front end of the blade arc platform (211) and is located on the handle arc platform (111), and the two side walls of the wedge block (3) are respectively matched with the first inclined surface (114) and the second inclined surface (214).

7. The quick-change tool for special equipment for spiral groove processing according to claim 6, characterized in that: The wedge block (3) is provided with a stud screw mounting hole (31), and the handle arc platform (111) is provided with a screw mounting hole; the stud screw mounting hole (31) is opposite to the screw mounting hole and is used to install the stud screw (4).

8. The quick-change tool for spiral groove processing equipment according to claim 1, characterized in that: The bottom surface of the U-shaped knife groove (22) is provided with a fixing screw hole (221), and the two side walls of the U-shaped knife groove (22) are respectively provided with a positioning groove (222) and knife groove dense teeth (223); A positioning boss (51) is provided on one side wall of the tool clamp pressure block (5), and a positioning inclined surface (52) is provided on the other side wall; a threaded hole (53) is also provided on the tool clamp pressure block (5), and the threaded hole (53) is opposite to the fixing screw hole (221) on the bottom surface of the U-shaped tool groove (22) so that the tool clamp pressure block (5) is fixedly installed in the U-shaped tool groove (22) by the installation screw, and the positioning boss (51) cooperates with the positioning groove (222) on the side wall of the U-shaped tool groove (22).

9. The quick-change tool for spiral groove processing equipment according to claim 8, characterized in that: The tool (6) is arranged between the positioning inclined surface (52) and the tool groove dense teeth (223); the tool (6) comprises a tool clamp seat (61), a blade (62) is fixed on the tool clamp seat (61), and the back of the tool clamp seat (61) is provided with dense teeth (63) which fit with the tool groove dense teeth (223) to limit the longitudinal displacement of the tool clamp seat (61).

10. The method for quickly changing tools of a special equipment for processing spiral grooves according to any one of claims 1 to 9, characterized in that: The quick-change tool holder cooperates with the pin shaft on the main shaft of the special equipment for spiral groove processing through bolt holes and keyways, which plays the role of fixing, connecting and transmitting torque; the quick-change tool holder and the lightweight cutter disc adopt a split structure, and the two rotate and slide through the tool holder limit table and the cutter disc limit table, and are fixed and locked by the positioning table, wedge block and stud screws to achieve torque transmission and complete fixation during work; the tool is installed on the lightweight cutter disc through the tool clamp pressure block and screws; when changing the tool, there is no need to completely disassemble the quick-change tool holder, just slide the lightweight cutter disc with the tool installed in advance from the quick-change tool holder to realize the quick tool change process of the special equipment for spiral groove processing.

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