Dust removal device for thread grinding machine

Abstract

The utility model relates to the technical field of dust removal devices, and discloses a dust removal device for a thread grinder, which comprises a base, a control box, a fixed box, a driving box, a dust collection cover, a dust collection box, a dust conveying pipe and a dust collection pump, the multiple expansion plates are connected end to end, the multiple expansion plates are arranged at the position close to the polishing wheel, a cavity is formed in each expansion plate, the feeding end of the dust conveying pipe communicates with the cavity, and a plurality of feeding ports communicating with the interior of the cavity are formed in the side, close to the polishing wheel, of each expansion plate; the connecting assembly is located between the two adjacent expansion plates, the connecting assembly comprises a bending part and fixing parts arranged at the two ends of the bending part, the bending part is used for bending the two adjacent expansion plates, the bending part is used for communicating the cavity between the two expansion plates, and the fixing parts are used for connecting the bending part and the expansion plates. The device has the effect that the convenience of dust protection and dust removal is further improved when the workpiece is polished.

Description

Technical Field

[0001] The present application relates to the technical field of dust removal devices, and in particular to a dust removal device for a thread grinder. Background Art

[0002] A thread grinder is a thread processing machine that uses a profiled grinding wheel as a grinding tool to process precision threads. When a thread grinder is grinding a workpiece, the debris generated by the grinding is easy to splash. In order to improve the convenience of collecting the debris, a dust removal device is generally installed near the working area of ​​the thread grinder.

[0003] There is a Chinese patent with authorization announcement number CN220006276U, which discloses a CNC external thread grinder, including a base, a control box is fixedly connected to one side above the base, a fixture for clamping parts is connected to one side of the control box, a fixed box is slidably connected to the other side above the base, a drive box is slidably connected near the fixed box and the base, a grinding wheel is connected to the output end of the drive box, a connecting rod is fixedly connected to the top of the drive box, the other end of the connecting rod is fixedly connected to a dust hood, and the dust hood is arranged above the grinding wheel; a dust box is fixedly connected to the back of the base, a first door panel is hinged to the other side of the dust box, a dust pump is fixedly installed above the dust box, a dust delivery pipe is fixedly connected to the output end of the dust pump, and the other end of the dust delivery pipe is fixedly connected to the dust hood.

[0004] When the above-mentioned CNC external thread grinder is working, the dust collecting hood blocks the dust generated when the workpiece is ground, and the dust collecting pump sucks the dust produced by the grinding workpiece into the dust collecting box through the dust delivery pipe for collection.

[0005] However, when grinding the workpiece with a grinding wheel, different grinding scenes will use grinding wheels of different sizes. When the above-mentioned CNC external thread grinder is working, the dust generated by the grinding workpiece can only be protected and removed by replacing integrated covers of different sizes, which has the defect of inconvenient protection and dust removal. Utility Model Content

[0006] In order to further improve the convenience of dust protection and dust removal when grinding a workpiece, the present application provides a dust removal device for a thread grinder.

[0007] The dust removal device for a thread grinder provided in this application adopts the following technical solution:

[0008] A dust removal device for a thread grinder, comprising a base, a control box, a fixed box, a drive box, a dust hood, a dust box, a dust delivery pipe and a dust collection pump, wherein the control box and the fixed box are mounted on the base, a fixture for clamping a workpiece is mounted on the control box, the drive box is slidably mounted on the base near the fixed box, a grinding wheel is mounted on the drive box, the dust hood is mounted on the drive box near the grinding wheel through a connecting rod, an inlet end of the dust delivery pipe is mounted on the dust hood, an outlet end of the dust delivery pipe is connected to the dust box, the dust collection pump is mounted on the dust delivery pipe, and the dust hood comprises;

[0009] Extension plates, wherein a plurality of the extension plates are provided, the plurality of the extension plates are connected end to end, the plurality of the extension plates are installed near the grinding wheel, a cavity is provided inside each of the extension plates, the feed end of the dust conveying pipe is connected to the cavity, and a plurality of feed ports connected to the inside of the cavity are provided on a side of each of the extension plates close to the grinding wheel;

[0010] A connecting component, the connecting component is located between two adjacent expansion boards, the connecting component includes a bending portion and a fixing portion installed at both ends of the bending portion, the bending portion is used to bend the two adjacent expansion boards, and the bending portion is used to connect the cavity between the two expansion boards, and the fixing portion is used to connect the bending portion and the expansion board.

[0011] Optionally, the extension plate includes a guide cover and a feed plate, the guide cover opening is located on a side close to the grinding wheel, the feed plate is mounted on the guide cover opening, and the feed opening is opened on the feed plate.

[0012] Optionally, a guide ring is installed at the feed port, and the inner diameter of the guide ring gradually increases in a direction from approaching the guide cover to away from the guide cover.

[0013] Optionally, a plurality of first positioning cylinders are provided inside the air deflector, and a plurality of second positioning cylinders corresponding to the first positioning cylinders are provided on a side of the feed plate close to the air deflector. The first positioning cylinders and the corresponding second positioning cylinders are plugged into each other, and a connecting screw is threaded through the feed plate, and the connecting screw is threadedly connected to the first positioning cylinder.

[0014] Optionally, the bending portion includes two mounting bars and a plurality of gooseneck tubes installed between the two mounting bars, the plurality of gooseneck tubes are distributed along the length direction of the mounting bars, the two ends of the gooseneck tubes correspond to the two mounting bars, and the ends of the gooseneck tubes are installed on the corresponding mounting bars.

[0015] Optionally, a plug-in slot connected to the internal cavity of the expansion board is formed at the end of the expansion board, the mounting strip is plugged into the plug-in slot, a transmission slot is formed at one end of the mounting strip away from the gooseneck tube, and the gooseneck tube is connected to the transmission slot.

[0016] Optionally, a first connecting hole is formed on the expansion plate, a second connecting hole is formed on the mounting bar, the fixing portion is a fixing bolt, and both the first connecting hole and the second connecting hole are threadedly connected to the fixing bolt.

[0017] Optionally, a positioning ring is provided on the inner wall of the plug-in slot, the end of the mounting bar abuts against the positioning ring, and the inner wall of the positioning ring gradually tilts toward the outer wall of the positioning ring along the direction from approaching the mounting bar to away from the mounting bar.

[0018] Optionally, the bending portion further includes an elastic protective cloth installed between the two mounting strips.

[0019] In summary, the present application includes at least one of the following beneficial technical effects:

[0020] 1. Before grinding the workpiece with the grinding wheel, select different numbers of expansion boards according to the needs of dust protection. Then, place the connection assembly between the two expansion boards, insert the mounting bar into the corresponding plug-in slot on the expansion board, and make the end of the mounting bar contact the positioning ring inside the plug-in slot to position the mounting bar. Then, make the fixing bolt pass through the first connection hole on the expansion board and the second connection hole on the mounting bar to further limit the mounting bar, so as to complete the installation of the mounting bar. Then, according to the needs of dust protection, bend the two adjacent expansion boards through the gooseneck tube to adjust the dust protection range. The dust collecting pump makes the guide ring at the feed port in a negative pressure state. When the dust generated by grinding the workpiece is protected from dust removal, the dust enters the internal cavity of the expansion plate from the guide ring, and moves through the gooseneck tube in the cavity between adjacent expansion plates, and moves to the dust delivery pipe, and then moves to the dust collecting box through the dust delivery pipe. The dust is collected and stored in the dust collecting box, so as to improve the convenience of protective dust removal when grinding the workpiece.

[0021] 2. Since the inner diameter of the guide ring gradually decreases from away from the guide cover to close to the guide cover, the dust absorption range of the feed port is increased, and at the same time, the possibility of dust moving out of the cavity again from the guide ring during the dust flowing inside the cavity is reduced.

[0022] 3. After the guide ring is blocked, just turn the connecting screws, use the guide ring as a handle, and remove and replace the feed plate through the guide ring, thereby improving the convenience of maintaining the feed plate. When installing the feed plate on the guide cover, the second positioning cylinder on the feed plate is sleeved on the outer periphery of the corresponding first positioning cylinder on the guide cover for positioning, and then the connecting screws are threadedly connected through the second positioning cylinder and the first positioning cylinder to complete the installation of the feed plate and the guide cover, thereby improving the convenience of installing the feed plate.

[0023] 4. During the operation of the expansion board, the gap between two adjacent expansion boards is protected by an elastic protective cloth, thereby further improving the reliability of dust protection and reducing the possibility of dust overflowing from between two adjacent expansion boards. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a schematic diagram of the overall structure of an embodiment of the present application.

[0025] Figure 2 It is a schematic diagram of the overall structure of the dust collecting hood in the embodiment of the present application.

[0026] Figure 3 It is a schematic diagram of a single expansion board structure in an embodiment of the present application.

[0027] Figure 4 It is a schematic diagram of the bending portion structure in the embodiment of the present application.

[0028] Description of reference numerals:

[0029] 1. Base; 2. Control box; 3. Fixed box; 4. Drive box; 5. Dust hood; 51. Extension board; 511. Air guide cover; 5111. Cavity; 5112. Plug-in slot; 5113. Positioning ring; 5114. First connecting hole; 512. Feed plate; 5121. Air guide ring; 513. First positioning cylinder; 514. Second positioning cylinder; 52. Connecting assembly; 521. Bending portion; 5211. Mounting strip; 5212. Gooseneck; 5213. Elastic protective cloth; 5214. Transmission slot; 5215. Second connecting hole. DETAILED DESCRIPTION

[0030] The following is combined with Figure 1-Figure 4 This application is described in further detail.

[0031] The embodiment of the present application discloses a dust removal device for a thread grinder.

[0032] A dust removal device for a thread grinder comprises a base 1, a control box 2, a fixed box 3, a drive box 4, a dust hood 5, a dust box, a dust delivery pipe and a dust collection pump. The base 1 is placed on the ground, the control box 2 and the fixed box 3 are both fixedly mounted on the top of the base 1, the control box 2 is equipped with a fixture for clamping a workpiece, the drive box 4 is slidably mounted on the base 1 near the fixed box 3, and the drive box 4 is equipped with a grinding wheel for grinding the workpiece. The dust hood 5 is fixedly mounted on the drive box 4 near the grinding wheel through a connecting rod, one end of the dust delivery pipe is connected to the dust hood 5, and the other end of the dust delivery pipe is connected to the inside of the dust box, the dust collection pump is installed in the middle of the dust delivery pipe, and the dust delivery pipe is connected to the dust collection pump.

[0033] The driving box 4 drives the grinding wheel and the dust hood 5 to move synchronously through the connecting rod. The dust collecting pump forms negative pressure at the dust hood 5 through the dust sending pipe. When the grinding wheel grinds the workpiece, the dust hood 5 absorbs the dust generated by the grinding workpiece, and transports the dust to the dust box for storage through the dust sending pipe, so as to improve the convenience of dust protection and dust removal when the workpiece is ground.

[0034] The dust collecting hood 5 includes an expansion plate 51 and a connecting assembly 52 .

[0035] Several expansion boards 51 are provided, and the connecting assembly 52 is located between two adjacent expansion boards 51 . The two adjacent expansion boards 51 are connected end to end through the connecting assembly 52 . The two adjacent expansion boards 51 are bent through the connecting assembly 52 , and the connecting rod and the expansion board 51 are fixedly connected.

[0036] According to the range of dust to be absorbed, different numbers of expansion plates 51 are selected, and two adjacent expansion plates 51 are bent through the connecting component 52. A cavity 5111 is opened inside the expansion plate 51. The cavity 5111 between the two adjacent expansion plates 51 is connected through the connecting component 52, and the dust conveying pipe and the cavity 5111 inside the expansion plate 51 are connected.

[0037] The expansion plate 51 includes a guide cover 511 and a feed plate 512. The opening of the guide cover 511 faces the position close to the grinding wheel, and the feed plate 512 is fixedly installed at the opening of the guide cover 511 by connecting screws. A plurality of first positioning cylinders 513 are fixedly installed inside the guide cover 511, and a plurality of second positioning cylinders 514 are fixedly installed on one side of the feed plate 512 close to the guide cover 511. When the feed plate 512 is installed on the air guide cover 511, the second positioning tube 514 is sleeved on the outer periphery of the corresponding first positioning tube 513, and the feed plate 512 and the air guide cover 511 are positioned by the first positioning tube 513 and the second positioning tube 514. Then, the connecting screws are threadedly connected through the second positioning tube 514 and the first positioning tube 513 to complete the installation of the feed plate 512 and the air guide cover 511, thereby improving the convenience of installing and replacing the feed plate 512, and at the same time, also improving the convenience of cleaning the inside of the cavity 5111 of the air guide cover 511.

[0038] The feed plate 512 is provided with a plurality of feed ports, which are connected to the cavity 5111 inside the expansion plate 51. Dust enters the cavity 5111 inside the expansion plate 51 from the feed ports. In order to further expand the scope of dust absorption, a guide ring 5121 is fixedly installed at the feed port. The inner diameter of the guide ring 5121 gradually increases from away from the guide cover 511 to close to the guide cover 511. While increasing the dust absorption scope, the possibility of dust inside the cavity 5111 moving out of the cavity 5111 of the expansion plate 51 from the guide ring 5121 is reduced. When taking the feed plate 512, the guide ring 5121 can also be used as a handle to increase the convenience of taking the feed plate 512.

[0039] The connecting assembly 52 includes a bending portion 521 and a fixing portion.

[0040] The bending portion 521 includes a mounting bar 5211, a gooseneck tube 5212 and an elastic protective cloth 5213. Two mounting bars 5211 are provided, and a plurality of gooseneck tubes 5212 are provided, the plurality of gooseneck tubes 5212 are located between the two mounting bars 5211, and the plurality of gooseneck tubes 5212 are distributed along the length direction of the mounting bar 5211, and a transmission groove 5214 is provided on one side of the mounting bar 5211 away from the gooseneck tube 5212, and the gooseneck tube 5212 and the transmission groove 5214 are connected.

[0041] The elastic protective cloth 5213 is fixedly installed between the two installation strips 5211 . The gap between two adjacent expansion plates 51 is further protected by the elastic protective cloth 5213 , thereby further improving the protection effect against dust and reducing the possibility of dust overflowing from the gap between two adjacent expansion plates 51 .

[0042] A plug-in slot 5112 is provided at the end of the air deflector 511, and the plug-in slot 5112 is communicated with the cavity 5111 inside the air deflector 511, and the mounting strip 5211 and the plug-in slot 5112 are plugged together. In order to position the mounting strip 5211, a positioning ring 5113 is fixedly installed on the inner wall of the plug-in slot 5112. After the mounting strip 5211 is inserted into the plug-in slot 5112, the mounting strip 5211 and the positioning ring 5113 are in conflict with each other. In order to improve the smoothness of the movement of dust from the cavity 5111 inside the air deflector 511 to the inside of the transmission slot 5214, the inner ring wall of the positioning ring 5113 gradually tilts toward the outer ring wall of the positioning ring 5113 along the direction from close to the mounting strip 5211 to away from the mounting strip 5211.

[0043] A first connecting hole 5114 is provided on the side wall of the air deflector 511, and a second connecting hole 5215 is provided on the side wall of the mounting strip 5211. The fixing part is a fixing bolt. After the mounting strip 5211 is inserted into the interior of the plug and positioned by the positioning ring 5113, the fixing bolt is threadedly connected through the first connecting hole 5114 and the second connecting hole 5215, so as to further limit the mounting strip 5211 and improve the convenience of connecting the mounting strip 5211 and the air deflector 511.

[0044] The implementation principle of a dust removal device for a threaded grinder in the embodiment of the present application is as follows: before grinding the workpiece with a grinding wheel, different numbers of extension plates 51 are selected according to the need to absorb dust. Then, the connection assembly 52 is located between the two extension plates 51, and the mounting bar 5211 is inserted into the plug-in slot 5112 on the corresponding extension plate 51, and the mounting bar 5211 is made to contact the positioning ring 5113 inside the plug-in slot 5112, so as to position the mounting bar 5211. Then, the fixing bolt is threadedly connected with the first connecting hole 5114 on the extension plate 51 and the second connecting hole 5215 on the mounting bar 5211 to limit the mounting bar 5211, so as to complete the installation of the mounting bar 5211. Then, according to the need to absorb dust, the two adjacent extension plates 51 are bent through the gooseneck tube 5212 to adjust the dust absorption range. The integrated pump will make the guide ring 5121 in a negative pressure state. When the dust from the workpiece grinding is sucked, the dust enters the cavity 5111 inside the expansion plate 51 from the guide ring 5121, and moves between adjacent expansion plates 51 through the gooseneck tube 5212, and moves to the inside of the dust delivery pipe, and moves to the inside of the dust collection box through the dust delivery pipe, and the dust is stored and collected by the dust collection box. Since the inner diameter of the guide ring 5121 gradually decreases from away from the guide cover 511 to close to the guide cover 511, the suction range of the feed port for dust is increased, and at the same time, the possibility of the dust moving out of the cavity 5111 again from the guide ring 5121 during the flow inside the cavity 5111 is reduced. After the guide ring 5121 is blocked, the connecting screws are directly screwed, and the guide ring 5121 is used as a handle. The feed plate 512 can be removed and replaced through the guide ring 5121, thereby improving the convenience of maintaining the feed plate 512. When the feed plate 512 is installed on the guide cover 511, the second positioning cylinder 514 on the feed plate 512 is sleeved on the outer periphery of the corresponding first positioning cylinder 513 on the guide cover 511 for positioning, and then the connecting screws are threadedly connected through the second positioning cylinder 514 and the first positioning cylinder 513 to complete the installation of the feed plate 512 and the guide cover 511. During the operation of the expansion plate 51, the gap between the two adjacent expansion plates 51 is protected by the elastic protective cloth 5213, thereby further improving the reliability of dust protection and reducing the possibility of dust overflowing from between the two adjacent expansion plates 51.

[0045] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A dust removal device for a thread grinder, comprising a base (1), a control box (2), a fixed box (3), a drive box (4), a dust hood (5), a dust box, a dust delivery pipe and a dust collection pump, wherein the control box (2) and the fixed box (3) are mounted on the base (1), a fixture for clamping a workpiece is mounted on the control box (2), the drive box (4) is slidably mounted on the base (1) at a position close to the fixed box (3), a grinding wheel is mounted on the drive box (4), the dust hood (5) is mounted on the drive box (4) at a position close to the grinding wheel through a connecting rod, the inlet end of the dust delivery pipe is mounted on the dust hood (5), the outlet end of the dust delivery pipe is connected to the dust box, and the dust collection pump is mounted on the dust delivery pipe, characterized in that: The dust collecting hood (5) comprises: An expansion plate (51), wherein a plurality of the expansion plates (51) are provided, the plurality of expansion plates (51) are connected end to end, the plurality of expansion plates (51) are installed at a position close to the grinding wheel, a cavity (5111) is provided inside each of the expansion plates (51), a feed end of the dust conveying pipe is connected to the cavity (5111), and a plurality of feed ports connected to the inside of the cavity (5111) are provided on a side of each of the expansion plates (51) close to the grinding wheel; A connecting component (52), the connecting component (52) is located between two adjacent expansion boards (51), the connecting component (52) comprises a bending portion (521) and fixing portions installed at both ends of the bending portion (521), the bending portion (521) is used to bend the two adjacent expansion boards (51), and the bending portion (521) is used to connect the cavity (5111) between the two expansion boards (51), and the fixing portion is used to connect the bending portion (521) and the expansion board (51).

2. A dust removal device for a thread grinder according to claim 1, characterized in that: The expansion plate (51) comprises a guide cover (511) and a feed plate (512); the cover opening of the guide cover (511) is located on a side close to the grinding wheel; the feed plate (512) is mounted on the cover opening of the guide cover (511); and the feed opening is opened on the feed plate (512).

3. A dust removal device for a thread grinder according to claim 2, characterized in that: A guide ring (5121) is installed at the feed inlet, and the inner diameter of the guide ring (5121) gradually increases along the direction from approaching the guide cover (511) to away from the guide cover (511).

4. A dust removal device for a thread grinder according to claim 2, characterized in that: A plurality of first positioning tubes (513) are provided inside the air deflector (511), and a plurality of second positioning tubes (514) corresponding to the first positioning tubes (513) are provided on a side of the feed plate (512) close to the air deflector (511). The first positioning tubes (513) and the corresponding second positioning tubes (514) are plugged into each other, and a connecting screw is threadedly passed through the feed plate (512), and the connecting screw is threadedly connected to the first positioning tube (513).

5. The dust removal device for a thread grinder according to claim 1, characterized in that: The bending portion (521) includes two mounting strips (5211) and a plurality of gooseneck tubes (5212) installed between the two mounting strips (5211); the plurality of gooseneck tubes (5212) are distributed along the length direction of the mounting strips (5211); the two ends of the gooseneck tubes (5212) correspond to the two mounting strips (5211); and the ends of the gooseneck tubes (5212) are installed on the corresponding mounting strips (5211).

6. A dust removal device for a thread grinder according to claim 5, characterized in that: The end of the expansion board (51) is provided with a plug-in slot (5112) which is connected to the internal cavity (5111) of the expansion board (51); the mounting strip (5211) and the plug-in slot (5112) are plug-fitted together; the end of the mounting strip (5211) away from the gooseneck tube (5212) is provided with a transmission slot (5214); the gooseneck tube (5212) and the transmission slot (5214) are connected.

7. A dust removal device for a thread grinder according to claim 6, characterized in that: The expansion plate (51) is provided with a first connection hole (5114), the mounting strip (5211) is provided with a second connection hole (5215), the fixing portion is a fixing bolt, and the first connection hole (5114) and the second connection hole (5215) are both threadedly connected to the fixing bolt.

8. The dust removal device for a thread grinder according to claim 6, characterized in that: A positioning ring (5113) is provided on the inner wall of the insertion groove (5112), and the end of the mounting strip (5211) contacts the positioning ring (5113), and the inner wall of the positioning ring (5113) gradually tilts toward the outer wall of the positioning ring (5113) from approaching the mounting strip (5211) to away from the mounting strip (5211).

9. The dust removal device for a thread grinder according to claim 5, characterized in that: The bending portion (521) further comprises an elastic protective cloth (5213) installed between the two installation strips (5211).

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