A quick-change tool and quick-change method for a special equipment for machining spiral grooves

Abstract

This invention discloses a quick-change tool and method for a special equipment for spiral groove machining, comprising a quick-change tool holder, a lightweight cutter head, a wedge block, a double-ended screw, a tool clamping block, and a cutting tool. The quick-change tool holder and the lightweight cutter head adopt a split structure. One side of the quick-change tool holder is connected to the spindle of the special equipment for spiral groove machining via a positioning pin, screw hole, and keyway. The other side of the quick-change tool holder is positioned to the lightweight cutter head via a tool holder limiting platform that mates with the cutter head limiting platform and a limiting surface. The wedge block and the double-ended screw lock the tool together, offsetting circumferential and axial clearances. The cutting tool is installed in the U-shaped groove of the lightweight cutter head via the tool clamping block. This invention, by setting a quick-change tool holder, enables rapid disassembly and replacement of cutting tools in the special equipment for spiral groove machining, effectively improving work efficiency.

Description

TECHNICAL FIELD

[0001] The present application belongs to the field of engineering application, and relates to a quick tool changing device special for a helical groove machining device, in particular to a split type quick tool changing device. BACKGROUND

[0002] The helical drilling technology has become a main technical means for drilling in soft and outburst coal seam gas extraction. The helical drill rod is an important tool for helical drilling, and is divided into a welded helical drill rod and an integral helical drill rod according to a processing mode, wherein the integral helical drill rod is machined by a helical groove machining device. The existing helical groove machining device adopts a one-piece structure of a tool disc, which is fixedly installed on a spindle for feeding and cutting through a pin hole and a screw, and a large number of blades (about 20 pieces) are installed on the tool disc. At present, there are two ways to replace the blades: (1) the tool disc is integrally disassembled to replace the tool disc with pre-installed blades, which has low efficiency and complicated operation of integral disassembly and assembly of the tool disc, and brings many inconveniences; (2) the tool disc is not disassembled, and the blades are replaced one by one after stopping the machine, which seriously restricts the production efficiency and has high labor intensity. SUMMARY

[0003] In view of the problems in the prior art, the present application aims to provide a quick tool changing device and method special for a helical groove machining device, which realizes quick installation of the tool disc through a split type structure design, has simple structure and reasonable design, realizes quick tool changing of the helical groove machining device, reduces labor intensity, and improves production efficiency, so as to solve the problems of complicated blade replacement, high labor intensity, and low efficiency in the prior art.

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

[0005] A quick tool changing device special for a helical groove machining device, comprising a quick tool changing handle, a lightweight tool disc, a wedge-shaped block, a double-headed screw, a tool clamp block, and a tool.

[0006] The quick tool changing handle and the lightweight tool disc adopt a split type structure; the quick tool changing handle has a circular structure with a central through hole, and a group of circumferentially distributed handle limiting tables are arranged on the outer sidewall of the quick tool changing handle; the lightweight tool disc has a disc structure with a central installation hole, and a group of circumferentially distributed disc limiting tables are arranged on the inner sidewall of the lightweight tool disc; the quick tool changing handle can be installed in the installation hole of the lightweight tool disc and is connected in circumferential rotation sliding mode through cooperation of the handle limiting tables and the disc limiting tables.

[0007] The wedge-shaped block is installed between the adjacent handle limiting tables and disc limiting tables through the double-headed screw to position and lock the quick tool changing handle and the lightweight tool disc in the circumferential and axial directions.

[0008] The tool is installed in the U-shaped tool slot of the outer wall of the lightweight cutter head through the tool holder pressing block;

[0009] The main shaft of the special screw groove machining equipment is connected with the quick-change tool holder to realize torque transmission.

[0010] The present application also comprises the following technical features:

[0011] Specifically, the quick-change tool holder is provided with four screw holes arranged around the center through hole, and a key groove is arranged on the bottom surface of the quick-change tool holder; the quick-change tool holder is connected with the main shaft of the special screw groove machining equipment through the four screw holes, the center through hole and the key groove, to realize torque transmission during the operation of the special screw groove machining equipment.

[0012] Specifically, the tool holder limiting table comprises a tool holder arc-shaped table and a tool holder protrusion, and the tool holder protrusion is located at the front end of the tool holder arc-shaped table and protrudes upward and forward relative to the tool holder arc-shaped table.

[0013] Specifically, the cutter head limiting table comprises a cutter head arc-shaped table and a cutter head protrusion, and the cutter head protrusion is located at the rear end of the cutter head arc-shaped table and protrudes downward and rearward relative to the cutter head arc-shaped table.

[0014] Specifically, the tool holder arc-shaped table is located below the cutter head arc-shaped table, the tool holder protrusion can rotate to the cutter head protrusion from the gap between adjacent cutter head limiting tables, the front end surface of the tool holder arc-shaped table is a first positioning table, the rear end surface of the cutter head protrusion is a second positioning table, the first positioning table and the second positioning table cooperate to realize circumferential positioning, and the quick-change tool holder and the lightweight cutter head are connected in a circumferential rotating and sliding mode.

[0015] Specifically, the rear end surface of the tool holder protrusion is a first inclined surface, and the front end surface of the cutter head arc-shaped table is a second inclined surface.

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

[0017] Specifically, the wedge-shaped block is provided with a double-head screw mounting hole, and the tool holder arc-shaped table is provided with a screw mounting hole; the double-head screw mounting hole is opposite to the screw mounting hole and is used for mounting a double-head screw.

[0018] Specifically, the bottom surface of the U-shaped tool slot is provided with a fixing screw hole, and the two side walls of the U-shaped tool slot are respectively provided with a positioning groove and tool slot teeth.

[0019] The one side wall of the tool holder pressing block is provided with a positioning protrusion, and the other side wall is a positioning inclined surface; a threaded hole is further arranged on the tool holder pressing block, the threaded hole is opposite to the fixing screw hole in the bottom surface of the U-shaped tool slot to install a screw for fixing and installing the tool holder pressing block in the U-shaped tool slot, and the positioning protrusion is matched with the positioning groove in the side wall of the U-shaped tool slot.

[0020] Specifically, the cutting tool is positioned between the positioning inclined surface and the fine teeth of the cutting groove; the cutting tool includes a tool holder, the cutting blade is fixed on the tool holder, and the back of the tool holder is provided with fine teeth that fit into the fine teeth of the cutting groove to restrict the longitudinal displacement of the tool holder.

[0021] The quick-change method for the quick-change tool in the spiral groove machining equipment involves the quick-change tool holder engaging with the pin on the spindle of the equipment via bolt holes and keyways, serving to fix, connect, and transmit torque. The quick-change tool holder and the lightweight cutter head are separate structures, rotating and sliding together via a tool holder limiting platform and a cutter head limiting platform. They are then secured and locked using a positioning platform, wedge blocks, and double-ended screws, achieving torque transmission and complete fixation during operation. The tool is mounted on the lightweight cutter head via a tool clamping block and screws. When changing tools, it is not necessary to completely disassemble the quick-change tool holder; simply slide the lightweight cutter head, with the tool pre-installed, off the quick-change tool holder to achieve a quick tool change process for the spiral groove machining equipment.

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

[0023] The quick-change tool and quick-change method of the spiral groove special equipment in this invention can realize the rapid replacement of the tool of the equipment, significantly improve the tool changing efficiency of the spiral groove special equipment, and the operation is very simple and convenient, reducing the labor intensity of workers and improving production efficiency.

[0024] The quick-change tool of this invention has a split structure. By dividing the quick-change tool holder and the lightweight tool disc into two parts, the quick-change tool holder can be connected to the spindle of the special equipment for spiral grooves, and the lightweight tool disc can be disassembled to achieve quick tool change.

[0025] The present invention provides a tool holder limiting platform that cooperates with the tool disc limiting platform between the quick-change tool holder and the lightweight tool disc. The tool holder is installed by sliding and rotating and locked by a wedge block to transmit working torque and achieve quick tool change. Attached Figure Description

[0026] Figure 1 This is a schematic diagram of the quick-change tool for the spiral groove special equipment of the present invention.

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

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

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

[0030] Figure 5 This is a schematic diagram of the present invention, which includes (a) a wedge block, (b) a double-ended screw, (c) a tool clamping block, and (d) a cutting tool.

[0031] The meanings of the labels in the diagram are as follows:

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

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

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

[0035] 31. Double-ended screw mounting holes;

[0036] 51. Locating boss; 52. Locating bevel; 53. Threaded hole;

[0037] 61. Tool holder, 62. Blade, 63. Close-toothed blade. Detailed Implementation

[0038] The following are specific embodiments of the present invention. It should be noted that the present invention is not limited to the following specific embodiments. All equivalent modifications made based on the technical solutions of this application fall within the protection scope of the present invention.

[0039] Example 1:

[0040] like Figures 1 to 5 As shown in the figure, this embodiment provides a quick-change tool for a special equipment for spiral groove machining, including a quick-change tool holder 1, a lightweight tool disc 2, a wedge block 3, a double-ended screw 4, a tool clamping block 5, and a tool 6.

[0041] The quick-change tool holder 1 and the lightweight cutter head 2 adopt a split structure. The quick-change tool holder 1 is a circular structure with a central through hole, and a set of circumferentially distributed tool holder limiting platforms 11 are provided on the outer wall of the quick-change tool holder 1. The lightweight cutter head 2 is a disc-shaped structure with a central mounting hole, and a set of circumferentially distributed cutter head limiting platforms 21 are provided on the inner wall of the lightweight cutter head 2. The quick-change tool holder 1 can be installed in the mounting hole of the lightweight cutter head 2 and achieves circumferential rotational sliding connection through the cooperation of the tool holder limiting platform 11 and the cutter head limiting platform 21. The wedge block 3 is installed between the adjacent tool holder limiting platform 11 and the cutter head limiting platform 21 by the double-ended screw 4 to position, lock and limit the quick-change tool holder 1 and the lightweight cutter head 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 head 2 through the tool clamping block 5. The spindle of the special equipment for spiral groove machining is connected with the quick-change tool holder 1 to transmit torque.

[0042] The quick-change tool holder 1 is provided with four 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 spindle of the special equipment for spiral groove processing through the four screw holes 12, the central through hole and the keyway 13, so as to realize the transmission of torque when the special equipment for spiral groove processing is working.

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

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

[0045] The aforementioned front, forward, rear, and backward directions refer to the circumferential direction. Specifically, when installing and connecting the quick-change tool holder and the lightweight tool disc, the direction of rotation of the quick-change tool holder relative to the lightweight tool disc is forward, and the opposite direction is backward.

[0046] The aforementioned upward and downward directions refer to the axial direction. Specifically, before installing the quick-change tool holder and lightweight tool disc, the direction in which the quick-change tool holder moves axially relative to the lightweight tool disc is upward, and the opposite direction is downward.

[0047] The tool holder arc platform 111 is located below the tool disc arc platform 211. The tool holder protrusion 112 can rotate from the gap between the adjacent tool disc limiting platforms 21 onto the tool disc protrusion 212. The front end face of the tool holder arc platform 111 is the first positioning platform 113, and the rear end face of the tool 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, realizing the circumferential rotational sliding connection between the quick-change tool holder 1 and the lightweight tool disc 2.

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

[0049] The wedge block 3 has a double-ended screw mounting hole 31, and the tool holder arc-shaped platform 111 has a screw mounting hole; the double-ended screw mounting hole 31 is opposite to the screw mounting hole and is used to install double-ended screws 4. This allows the wedge block to position, lock, and limit the quick-change tool holder and lightweight tool disc circumferentially and axially, preventing radial and axial movement during operation. The tool holder arc-shaped platform also has screw holes for fixing the quick-change tool holder and lightweight tool disc.

[0050] The bottom surface of the U-shaped cutter groove 22 is provided with a fixing screw hole 221, and the two side walls of the U-shaped cutter groove 22 are respectively provided with a positioning groove 222 and a cutter groove tooth 223.

[0051] The tool clamping block 5 has a positioning boss 51 on one side wall and a positioning inclined surface 52 on the other side wall. The tool clamping block 5 also has a threaded hole 53, which is opposite to the fixing screw hole 221 on the bottom surface of the U-shaped tool groove 22. The tool clamping block 5 is fixedly installed in the U-shaped tool groove 22 by mounting screws. 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 clamping 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 cutting tool 6 is positioned between the positioning inclined surface 52 and the fine teeth 223 of the tool groove. The cutting tool 6 includes a tool holder 61, on which the cutting blade 62 is fixed. The back of the tool holder 61 is provided with fine teeth 63 that engage with the fine teeth 223 of the tool groove, thereby restricting the longitudinal displacement of the tool holder 61. Specifically, the tool holder is provided with mounting screw holes for mounting screws to fix the cutting blade to the tool holder.

[0053] In this embodiment, there are three tool holder limiting platforms and three tool disc limiting platforms; correspondingly, there are three sets of tool holder protrusions and their first inclined surfaces, three sets of tool disc arc-shaped platforms and their second inclined surfaces, three wedge blocks, three sets of tool holder arc-shaped platforms and their first positioning platforms, and three sets of tool disc protrusions and their second positioning platforms; the three sets of inclined surfaces and the three sets of positioning platforms are used for axial positioning when installing quick-change tool holders, lightweight tool discs, and wedge blocks.

[0054] In this embodiment, the double-ended screw is a reverse double-ended screw, with one end connected to the quick-change tool holder and the other end connected to the wedge block. One rotation corresponds to twice the travel. The wedge block is installed on the quick-change tool holder by the double-ended screw, so that the wedge block can position and lock the quick-change tool holder and the lightweight tool disc circumferentially and axially, preventing radial and axial movement. Using the double-ended screw to lock the wedge block cancels out circumferential and axial clearances, preventing radial and axial movement of the quick-change tool holder during the cutting process, and transmitting the working torque.

[0055] Example 2:

[0056] This embodiment provides a quick-change method for a special equipment for spiral groove machining. Before starting work, first check whether the machine tool can operate normally, and prepare the quick-change tool holder, lightweight tool disc, wedge block, tool pad, cutting tool, and screws. The quick-change tool holder engages with the pin on the spindle of the special equipment for spiral groove machining through four countersunk bolt holes and keyways evenly distributed on the circumference, which serves to fix, connect, and transmit torque. The quick-change tool holder and the lightweight tool disc adopt a separate structure. The two are rotated and slid through the tool holder limiting platform and the tool disc limiting platform, and are fixed and locked by the positioning platform, wedge block, and reverse double-ended screws to achieve torque transmission and complete fixation during operation. The tool is installed on the lightweight tool disc through the tool holder seat, tool holder pressure block, and screws. When changing tools, it is not necessary to completely disassemble the quick-change tool holder. Simply slide the lightweight tool disc with the tool installed in advance off the quick-change tool holder to realize the quick tool change process of the special equipment for spiral groove machining.

[0057] The preferred embodiments of the present invention have been described in detail above with reference to the accompanying drawings. However, the present invention is not limited to the specific details of the above embodiments. Within the scope of the technical concept of the present invention, various simple modifications can be made to the technical solution of the present invention, and these simple modifications all fall within the protection scope of the present invention.

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

[0059] Furthermore, various different embodiments of the present invention can be combined in any way, as long as they do not violate the spirit of the present invention, they should also be regarded as the content disclosed by the present invention.

Claims

1. A quick-change tool for a special equipment for machining spiral grooves, characterized in that, Includes quick-change tool holder (1), lightweight tool disc (2), wedge block (3), double-ended screw (4), tool holder pressure block (5), and tool (6); The quick-change tool holder (1) and the lightweight tool disc (2) adopt a split structure; the quick-change tool holder (1) is a circular structure with a central through hole, and a set of circumferentially distributed tool holder limiting platforms (11) are provided on the outer side wall of the quick-change tool holder (1); the lightweight tool disc (2) is a disc-shaped structure with a central mounting hole, and a set of circumferentially distributed tool disc limiting platforms (21) are provided on the inner side wall of the lightweight tool disc (2); the quick-change tool holder (1) can be installed in the mounting hole of the lightweight tool disc (2) and achieve circumferential rotational sliding connection through the cooperation of the tool holder limiting platform (11) and the tool disc limiting platform (21); The wedge block (3) is installed between the adjacent tool holder limiting platform (11) and the tool disc limiting platform (21) by a double-ended screw (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 cutting tool (6) is installed in the U-shaped groove (22) on the outer side wall of the lightweight cutting disc (2) by the tool clamping block (5); The spindle of the special equipment for spiral groove machining is connected with the quick-change tool holder (1) to transmit torque.

2. The quick-change tool for spiral groove machining as described in 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 spindle of the special equipment for spiral groove processing through the screw holes (12), the central through hole and the keyway (13) to realize the transmission of torque when the special equipment for spiral groove processing is working.

3. The quick-change tool for spiral groove machining as described in claim 1, characterized in that, The tool holder limiting platform (11) includes a tool holder arc platform (111) and a tool holder protrusion (112). The tool holder protrusion (112) is located at the front end of the tool holder arc platform (111) and protrudes upward and forward relative to the tool holder arc platform (111).

4. The quick-change tool for spiral groove machining as described in claim 3, characterized in that, The cutter head limiting platform (21) includes a cutter head arc platform (211) and a cutter head protrusion (212). The cutter head protrusion (212) is located at the rear end of the cutter head arc platform (211) and protrudes downward and backward relative to the cutter head arc platform (211).

5. The quick-change tool for spiral groove machining as described in claim 4, characterized in that, The tool holder arc platform (111) is located below the cutter disc arc platform (211). The tool holder protrusion (112) can rotate from the gap between the adjacent cutter disc limiting platforms (21) onto the cutter disc protrusion (212). The front end face of the tool holder arc platform (111) is the first positioning platform (113), and the rear end face 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, thereby realizing the circumferential rotational sliding connection between the quick-change tool holder (1) and the lightweight cutter disc (2).

6. The quick-change tool for spiral groove machining as described in claim 4, characterized in that, The rear end face of the tool holder protrusion (112) is a first inclined surface (114), and the front end face of the tool disc arc platform (211) is a second inclined surface (214); The wedge block (3) is located in the gap between the rear end of the tool holder protrusion (112) and the front end of the tool disc arc platform (211) and is located on the tool holder arc platform (111). 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 spiral groove machining as described in claim 6, characterized in that, The wedge block (3) is provided with a double-ended screw mounting hole (31), and the tool holder arc platform (111) is provided with a screw mounting hole; the double-ended screw mounting hole (31) is opposite to the screw mounting hole and is used to install a double-ended screw (4).

8. The quick-change tool for the special equipment for spiral groove machining as described in 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 a knife groove tooth (223); The blade clamping block (5) has a positioning boss (51) on one side wall and a positioning inclined surface (52) on the other side wall; the blade clamping block (5) also has a threaded hole (53), which is opposite to the fixing screw hole (221) on the bottom surface of the U-shaped blade groove (22) so that the blade clamping block (5) can be fixedly installed in the U-shaped blade groove (22) with mounting screws, and the positioning boss (51) cooperates with the positioning groove (222) on the side wall of the U-shaped blade groove (22).

9. The quick-change tool for spiral groove machining as described in claim 8, characterized in that, The cutting tool (6) is located between the positioning inclined surface (52) and the tool groove teeth (223); the cutting tool (6) includes a tool holder (61), the cutting blade (62) is fixed on the tool holder (61), the back of the tool holder (61) is provided with teeth (63) and fits against the tool groove teeth (223) to restrict the longitudinal displacement of the tool holder (61).

10. The quick-change method for quick-change tools in the special equipment for spiral groove machining according to any one of claims 1 to 9, characterized in that, The quick-change tool holder engages with the pin on the spindle of the spiral groove machining equipment via bolt holes and keyways, serving to fix, connect, and transmit torque. The quick-change tool holder and the lightweight cutter head are separate structures, which are rotated and slid together by the tool holder limiting platform and the cutter head limiting platform. They are fixed and locked by the positioning platform, wedge block, and double-ended screws, achieving torque transmission and complete fixation during operation. The tool is installed on the lightweight cutter head by the tool clamping block and screws. When changing tools, it is not necessary to completely disassemble the quick-change tool holder. Simply slide the lightweight cutter head with the pre-installed tool off the quick-change tool holder to achieve a quick tool change process for the spiral groove machining equipment.

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