A device for processing a column valve hole

Abstract

The present invention relates to the field of valve body turning and discloses a column valve hole processing device, comprising a base, a workpiece clamp is rotatably installed on the side of the base, a drill moving part is slidably installed on the base away from the workpiece clamp, the drill moving part includes a drill bit, and the drill bit is used for drilling a hole in the workpiece, and a limiting device is fixedly installed on the side of the drill moving part; the present invention drives the first fixed plate to move by a first telescopic rod on the limiting device, adjusts the limiting follower to a position close to the drilling position of the drill bit and the workpiece, thereby driving the second limiting ring to move in a direction close to the first slider, so that the limiting follower block clamps the drill bit to prevent shaking and tilting during initial drilling, and the limiting follower block is subjected to centrifugal force, which can further clamp the drill bit and improve stability, and at the same time, a cutting piece is provided on the side of the second ring block, which can drive the cutting piece to rotate, thereby cleaning long iron chips after the drill bit drills the hole, and preventing it from affecting the clamping and limiting of the limiting follower block.

Description

Technical Field

[0001] The present invention relates to the technical field of valve body turning, and more particularly to a device for machining a column valve hole. Background Art

[0002] The stigmoid valve is a control valve installed at the end of a hydraulic or pneumatic system pipeline to regulate medium flow or isolate equipment. The turning and processing of the stigmoid valve hole usually adopts precision CNC lathe to ensure the inner hole size accuracy and surface finish. During processing, attention should be paid to the coaxiality of the valve hole and the quality of the sealing surface to ensure the sealing performance of the valve. The material is mostly stainless steel or alloy steel, taking into account both corrosion resistance and strength requirements.

[0003] A patent application with publication number CN109079156B discloses a column valve hole processing device, including a drilling lathe fixture of a drilling lathe body, including a drilling lathe turntable and drilling lathe clamps symmetrically arranged on both sides of the drilling lathe turntable, the two drilling lathe clamps are respectively connected to a drilling lathe clamping cylinder that pushes them to translate in the direction close to or away from the axis of the drilling lathe turntable, and each drilling lathe clamp is provided with a drilling clamping groove with a concave middle part on the inner side, and the drilling clamping groove is spaced apart from the drilling lathe turntable, and the drilling lathe loading device is provided on one side of the drilling lathe clamp, and the drilling lathe turntable is coaxially installed on the main shaft of the drilling device. The turning of both ends of the valve hole can be completed by one clamping, thereby ensuring the coaxiality of the two ends of the valve hole after processing.

[0004] During use, the above-mentioned device can clamp the workpiece to maintain the coaxiality of the workpiece during processing. However, during the processing, even if the workpiece and the drill bit have been clamped, due to the different forces and depths of the holes when drilling, the drill bit has a certain length. When the drill bit just contacts the workpiece, the drill bit will generate a slight deformation force and even swing a certain distance, increasing the error during workpiece processing. Summary of the Invention

[0005] The present invention provides a device for processing a column valve hole, which solves the technical problem in the related art that, during the processing process, even if the workpiece and the drill bit have been clamped, due to the different forces and the different depths of the holes when drilling, the drill bit has a certain length, and when the drill bit just contacts the workpiece, the drill bit will generate a slight deformation force and even swing a certain distance, thereby increasing the error when processing the workpiece.

[0006] The present invention provides a column valve hole processing device, comprising a base, wherein a first protective cover and a second protective cover are provided on the base, an operating box is provided on the side of the base, a guide block is provided on the base, a symmetrically arranged center frame is slidably installed on the top of the guide block, a workpiece clamp is rotatably installed on the side of the base close to the operating box, and a drill moving part is slidably installed on the base away from the workpiece clamp, the drill moving part comprises a drill bit, which is used to drill a hole in the workpiece, and a limiting device is fixedly installed on the side of the drill moving part, and the limiting device is used to limit the drill bit when drilling a hole; the limiting device comprises a connecting part and a limiting follower, the connecting part is fixedly installed on the side of the drill moving part, the limiting follower is rotatably installed inside the connecting part, the connecting part telescopically drives the limiting follower to move to the workpiece drilling position, and the limiting follower is used to limit the end of the drill bit when the drill bit is drilling a hole.

[0007] As a further optimization solution of the present invention, the drill moving part includes a first sliding block slidably mounted on the outside of the guide block, a drill clamp is rotatably mounted inside the first sliding block, and the drill clamp holds the drill bit.

[0008] As a further optimization solution of the present invention, the limiting device includes a detection telescopic part slidably mounted on the connecting part, the detection telescopic part is connected to the limiting follower, and a cutting part is fixedly mounted on the side of the limiting follower close to the workpiece fixture.

[0009] As a further optimization scheme of the present invention, the connecting member includes a first telescopic rod in a circumferential array on the side of the first slider, a first fixed plate is fixedly installed on the end of the first telescopic rod, a first ring block is fixedly installed inside the first fixed plate, and a limiting follower is rotatably installed inside the first ring block, and the limiting follower is used to limit the drill bit.

[0010] As a further optimization scheme of the present invention, the detection telescopic part includes a second telescopic rod slidably installed inside the first fixed plate, a first spring is provided on the outside of the second telescopic rod, and a second fixed plate is fixedly installed on the end of the second telescopic rod away from the first fixed plate.

[0011] As a further optimization scheme of the present invention, the limit follower includes a second ring block rotatably mounted inside the first ring block, the inner wall circumferential array of the second ring block has a third fixed block, the outside of the third fixed block is rotatably mounted with a limit follower block, the side of the second ring block away from the workpiece clamp is fixedly mounted with a first slide rod symmetrically arranged, the end of the first slide rod is fixedly mounted with a fourth fixed block, the outside of the first slide rod is slidably mounted with a movable protrusion, the end of the movable protrusion is fixedly mounted with a first movable ring, the outside of the first movable ring is rotatably mounted with a second limit ring, and the center of the movable protrusion is provided with a middle groove.

[0012] As a further optimization scheme of the present invention, an internal connecting column is provided inside the limit follower block, and the internal connecting column is rotatably installed on the third fixed block. A clamping protrusion is fixedly installed on the end of the limit follower block, and the clamping protrusion is used to clamp the drill bit. A torsion spring is provided at the position of the internal connecting column and the third fixed block.

[0013] As a further optimization scheme of the present invention, the cutting piece includes a fourth telescopic rod fixedly installed on the side of the second ring block, a telescopic frame is movably installed on the end of the fourth telescopic rod, a scraper is fixedly installed on the telescopic frame, a limiting U-shaped block is fixedly installed on the side of the clamping protrusion, and the scraper is rotatably installed on the limiting U-shaped block.

[0014] As a further optimized solution of the present invention, the end of the second telescopic rod passes through the interior of the first fixing plate and is fixedly mounted to the side of the first ring block.

[0015] As a further optimization solution of the present invention, the second limiting ring is concentric with the first movable ring, and the first ring block is concentric with the second ring block.

[0016] The beneficial effects of the present invention are:

[0017] The column valve hole processing device described in the present invention drives the first fixed plate to move by the first telescopic rod on the limit device, adjusts the limit follower to a position close to the drilling position of the drill bit and the workpiece, and then drives the second limit ring to move in the direction close to the first slider by detecting the contact between the telescopic member and the side of the center frame, so that the limit follower block clamps the drill bit to prevent shaking and tilting during initial drilling, and the limit follower block is subjected to centrifugal force, which can further clamp the drill bit and improve stability. At the same time, a cutting piece is provided on the side of the second ring block, which can drive the cutting piece to rotate, thereby cleaning the long iron chips after the drill bit drills the hole, and preventing it from affecting the clamping and limiting of the limit follower block. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the overall appearance of the device of the present invention;

[0019] Figure 2 It is a schematic diagram of the internal structure of the overall device of the present invention;

[0020] Figure 3 Schematic diagram of the internal structure of the limiting device of the present invention;

[0021] Figure 4 Schematic diagram of the internal structure of the connector of the present invention;

[0022] Figure 5 Schematic diagram of the installation structure of the limit device of the present invention;

[0023] Figure 6 Schematic diagram of the internal structure of the position limiting follower of the present invention;

[0024] Figure 7 Schematic diagram of the installation of the position limiting follower of the present invention;

[0025] Figure 8 It is a schematic diagram of the internal structure of the cutting piece of the present invention.

[0026] In the picture:

[0027] 1. Base; 11. First protective cover; 12. Second protective cover; 13. Operation box; 14. Workpiece fixture; 15. Center stand; 16. Drill moving part; 161. First slide; 162. Drill clamp; 163. Drill; 17. Guide block;

[0028] 2. Limiting device; 21. Connecting piece; 211. First telescopic rod; 212. First fixed plate; 213. First ring block; 22. Detection telescopic piece; 221. Second telescopic rod; 222. First spring; 223. Second fixed plate; 23. Limiting follower; 231. Second ring block; 232. Third fixed block; 233. Limiting follower block; 2331. Internal connecting column; 2332. Clamping protrusion; 234. First sliding rod; 235. Fourth fixed block; 236. Moving protrusion; 237. First moving ring; 238. Second limiting ring; 239. Middle groove; 24. Cutting piece; 241. Fourth telescopic rod; 242. Limiting U-shaped block; 243. Telescopic frame; 244. Scraper. DETAILED DESCRIPTION

[0029] The subject matter described herein will now be discussed with reference to exemplary embodiments. It should be understood that these embodiments are discussed solely to enable those skilled in the art to better understand and implement the subject matter described herein, and that the functions and arrangements of the elements discussed may be varied without departing from the scope of this specification. Various examples may omit, substitute, or add various processes or components as needed. In addition, features described with respect to some examples may also be combined in other examples.

[0030] like Figures 1 to 2 As shown, a column valve hole processing device described in an embodiment of the present invention includes a base 1, a first protective cover 11 and a second protective cover 12 are provided on the base 1, an operation box 13 is provided on the side of the base 1, a guide block 17 is provided on the base 1, a symmetrically arranged center frame 15 is slidably installed on the top of the guide block 17, a workpiece clamp 14 is rotatably installed on the side of the base 1 close to the operation box 13, a drill moving part 16 is slidably installed on the side of the base 1 away from the workpiece clamp 14, the drill moving part 16 includes a drill bit 163, the drill bit 163 is used for drilling a workpiece, and a limiting device 2 is fixedly installed on the side of the drill moving part 16, and the limiting device 2 is used to limit the drill bit 163 when drilling;

[0031] like Figures 3 and 4 As shown, the limiting device 2 includes a connecting member 21 and a limiting follower 23. The connecting member 21 is fixedly installed on the side of the drill moving member 16, and the limiting follower 23 is rotatably installed inside the connecting member 21. The connecting member 21 is extended and retracted to drive the limiting follower 23 to move toward the drilling position of the workpiece. The limiting follower 23 is used to limit the end of the drill bit 163 when the drill bit 163 is drilling.

[0032] It should be noted that when drilling a workpiece, the workpiece is first placed inside the center frame 15 using a clamp, and then the center frame 15 is started to clamp the workpiece, and then the center frame 15 is moved so that the workpiece clamp 14 clamps the workpiece. When it is necessary to drill a hole at one end of the workpiece, the motor is used to drive the drill moving part 16 to move toward the workpiece clamp 14 (this part drives the workpiece to move and drives the drill moving part 16 to move is the existing technology and will not be described in detail), and the limit follower 23 includes a second ring block 231, a third fixed block 232, and a limit follower block 233, and the second ring block 231 is rotatably mounted on the connecting member 21 The third fixed block 232 is fixedly mounted on the inside of the second ring block 231, and the limit follower block 233 is rotatably mounted on the outside of the third fixed block 232. The motor drives the multiple limit follower blocks 233 to rotate, so that the multiple limit follower blocks 233 clamp the drill bit 163. When the end of the drill bit 163 contacts the workpiece for drilling, the drill bit 163 is limited to prevent the drill bit 163 from deflecting and shaking during drilling, thereby improving the drilling accuracy. The third fixed block 232 will also rotate with the drill bit 163, and the limit follower block 233 is in a shape with one side larger and the other side smaller, so during rotation, the clamping force can be increased to further prevent the problem of deflection during rotation.

[0033] like Figures 3 to 8As shown, the drill moving member 16 includes a first slider 161 slidably mounted on the outside of the guide block 17 , and a drill clamp 162 is rotatably mounted inside the first slider 161 , and a drill bit 163 is clamped on the drill clamp 162 .

[0034] It should be noted that the first slider 161 slides on the outside of the guide block 17, so that the center of the center frame 15, the center of the workpiece clamp 14 and the center of the drill moving part 16 are on the same straight line. A motor is provided inside the first slider 161, so that the output shaft of the motor is connected to the drill clamp 162, so that when the motor is started, the drill clamp 162 is driven to rotate, and the drill bit 163 is clamped by the drill clamp 162, driving the drill bit 163 to rotate. When the first slider 161 is moved, the drill bit 163 is driven to move to drill the workpiece.

[0035] like Figures 3 to 5 As shown, the limiting device 2 includes a detection telescopic member 22 slidably mounted on a connecting member 21 , the detection telescopic member 22 is connected to the limiting follower 23 , and a cutting member 24 is fixedly mounted on the side of the limiting follower 23 close to the workpiece fixture 14 .

[0036] It should be noted that the connecting member 21 is telescopic so that the limit follower 23 can adapt to drill bits 163 of different lengths. When drilling a hole in the workpiece, it can be as close to the drilling position of the workpiece as possible to prevent the drill bit 163 from shaking during drilling. The detection telescopic member 22 contacts the side of the center frame 15 on the side away from the workpiece clamp 14, thereby lifting the limit follower 23, so that the limit follower 23 clamps the drill bit 163 to prevent the drill bit 163 from shaking and tilting. The limit follower 23 can rotate with the cutting member 24. When the drill bit 163 rotates to drill a hole in the workpiece, the cutting member 24 can clear the rolled debris to prevent the drilling debris from affecting the limit follower 23.

[0037] like Figures 3 to 6 As shown, the connecting member 21 includes a first telescopic rod 211 in a circular array on the side of the first slider 161, and a first fixed plate 212 is fixedly installed on the end of the first telescopic rod 211. A first ring block 213 is fixedly installed inside the first fixed plate 212, and a limit follower 23 is rotatably installed inside the first ring block 213. The limit follower 23 is used to limit the drill bit 163.

[0038] It should be noted that the extension and retraction of the first telescopic rod 211 can drive the first fixed plate 212 to move closer to or away from the workpiece clamp 14, and a first ring block 213 is provided inside the first fixed plate 212. The internal rotation of the first ring block 213 is installed with a limit follower 23, so that the limit follower 23 can clamp the drill bit 163 while rotating with the drill bit 163, thereby improving the clamping and limiting effect.

[0039] like Figures 3 to 5 and Figure 7 As shown, the detection telescopic member 22 includes a second telescopic rod 221 slidably installed inside the first fixed plate 212, a first spring 222 is provided on the outside of the second telescopic rod 221, and a second fixed plate 223 is fixedly installed on the end of the second telescopic rod 221 away from the side of the first fixed plate 212.

[0040] It should be noted that the second fixed plate 223 is used to contact the side of the center frame 15, and through the contraction length of each second telescopic rod 221, it is possible to calculate whether the positions of the center frame 15 and the first slider 161 are parallel, so as to detect whether the center of the center frame 15 and the first slider 161 are consistent with the center of the workpiece fixture 14, and the second telescopic rod 221 slides inside the first fixed plate 212, so when the second telescopic rod 221 is squeezed and moved, it can drive the limit follower 23 to clamp the drill bit 163, thereby improving the stability of drilling.

[0041] like Figures 5 to 7 As shown, the limiting follower 23 includes a second ring block 231 rotatably mounted inside the first ring block 213, the inner wall circumferential array of the second ring block 231 is provided with a third fixed block 232, the external rotatable installation of the limiting follower block 233, the side of the second ring block 231 away from the workpiece fixture 14 is fixedly provided with a first slide bar 234 symmetrically arranged, the end of the first slide bar 234 is fixedly provided with a fourth fixed block 235, the external sliding installation of the first slide bar 234 is provided with a movable protrusion 236, the end of the movable protrusion 236 is fixedly provided with a first movable ring 237, the external rotatable installation of the first movable ring 237 is provided with a second limiting ring 238, and the center of the movable protrusion 236 is provided with a middle groove 239.

[0042] It should be noted that the second telescopic rod 221 is squeezed by the center frame 15 and moves toward the direction close to the first slider 161. The movement of the second telescopic rod 221 drives the second limiting ring 238 to move toward the direction close to the first slider 161, and then drives the first moving ring 237 and the moving protrusion 236 to move toward the direction close to the first slider 161. The center of the moving protrusion 236 is provided with a middle groove 239, and the outer portion of the middle groove 239 contacts the limiting follower block 233, thereby driving the limiting follower block 237 to move. 33 moves toward the center of the drill bit 163, the drill bit 163 can be clamped, and when the limit follower block 233 clamps the drill bit 163, it drives the movable protrusion 236, the limit follower 23 and the second ring block 231 to rotate with the drill bit 163, and the limit follower block 233 is subjected to the centrifugal force of the rotation, and clamps the drill bit 163 again to increase the clamping force. The limit follower block 233 clamps the drill bit 163, which can prevent the drill bit 163 from shaking and deflecting during drilling, thereby improving the accuracy and safety of drilling.

[0043] like Figures 6 and 7 As shown, an internal connecting column 2331 is provided inside the limit follower block 233, and the internal connecting column 2331 is rotatably installed on the third fixed block 232. A clamping protrusion 2332 is fixedly installed at the end of the limit follower block 233, and the clamping protrusion 2332 is used to clamp the drill bit 163. A torsion spring is provided at the position of the internal connecting column 2331 and the third fixed block 232.

[0044] It should be noted that when the drill bit 163 stops rotating, the internal connecting column 2331 and the limiting follower block 233 are subjected to force, so that the internal connecting column 2331 and the limiting follower block 233 remain as Figure 5 state, and when the detection telescopic member 22 is not in contact with the side of the center frame 15, the limit following block 233 drives the moving protrusion 236 to move toward the first fixed plate 212, thereby resetting the limit following block 233 and the second limit ring 238.

[0045] like Figure 4 and Figure 8 As shown, the cutting member 24 includes a fourth telescopic rod 241 fixedly mounted on the side of the second ring block 231, a telescopic frame 243 is movably mounted on the end of the fourth telescopic rod 241, a scraper 244 is fixedly mounted on the telescopic frame 243, a limiting U-shaped block 242 is fixedly mounted on the side of the clamping protrusion 2332, and the scraper 244 is rotatably mounted on the limiting U-shaped block 242.

[0046] It should be noted that when the second ring block 231 rotates, it drives the telescopic frame 243 and the scraper 244 to rotate, and the clamping protrusion 2332 rotates to make the clamping protrusion 2332 close to the outer position of the drill bit 163, and the scraper 244 can clean the long drilling debris near the position of the clamping protrusion 2332 to prevent the limit follower block 233 from being affected during use.

[0047] like Figure 7 As shown, the end of the second telescopic rod 221 passes through the interior of the first fixing plate 212 and is fixedly mounted to the side of the first ring block 213 .

[0048] It should be noted that the end of the second telescopic rod 221 passes through the interior of the first fixed plate 212 and is fixedly installed on the side of the first ring block 213. When the second telescopic rod 221 is squeezed and moved, it can drive the second limiting ring 238 to move toward the direction close to the first slider 161, so that the limiting follower block 233 clamps the drill bit 163.

[0049] like Figures 6 and 7 As shown, the second limiting ring 238 is concentric with the first moving ring 237 , and the first ring block 213 is concentric with the second ring block 231 .

[0050] It should be noted that the second limiting ring 238 is concentric with the first movable ring 237, and the first ring block 213 is concentric with the second ring block 231, so that the drill bit 163 is concentric with the second ring block 231 and the first movable ring 237, and at the same time, when the drill bit 163 is clamped, the drill bit 163 is kept from tilting.

[0051] The above describes the embodiments of the present invention, but the present invention is not limited to the above specific implementation methods. The above specific implementation methods are merely illustrative and not restrictive. Ordinary technicians in this field can also make many forms under the guidance of the present invention, all of which are protected by the present invention.

Claims

1. A column valve hole processing device, comprising a base (1), characterized in that: The base (1) is provided with a first protective cover (11) and a second protective cover (12), an operating box (13) is provided on the side of the base (1), a guide block (17) is provided on the base (1), a symmetrically arranged center frame (15) is slidably mounted on the top of the guide block (17), a workpiece fixture (14) is rotatably mounted on the side of the base (1) close to the operating box (13), a drill moving part (16) is slidably mounted on the side of the base (1) away from the workpiece fixture (14), the drill moving part (16) includes a drill bit (163), the drill bit (163) is used for drilling a workpiece, a limiting device (2) is fixedly mounted on the side of the drill moving part (16), and the limiting device (2) is used for limiting the position of the drill bit (163) when drilling a hole; The limiting device (2) comprises a connecting member (21) and a limiting follower (23), wherein the connecting member (21) is fixedly mounted on the side of the drill moving member (16), and the limiting follower (23) is rotatably mounted inside the connecting member (21). The connecting member (21) is extended and retracted to drive the limiting follower (23) to move toward the drilling position of the workpiece, and the limiting follower (23) is used to limit the end of the drill bit (163) when the drill bit (163) is drilling. The connecting member (21) includes a first telescopic rod (211) in a circumferential array on the side of the first slider (161), a first fixing plate (212) is fixedly installed at the end of the first telescopic rod (211), a first ring block (213) is fixedly installed inside the first fixing plate (212), and a limit follower (23) is rotatably installed inside the first ring block (213), and the limit follower (23) is used to limit the position of the drill bit (163); The position-limiting follower (23) comprises a second ring block (231) rotatably mounted inside the first ring block (213); a third fixed block (232) is provided in a circumferential array on the inner wall of the second ring block (231); a position-limiting follower block (233) is rotatably mounted on the outside of the third fixed block (232); a first slide bar (234) symmetrically arranged is fixedly mounted on the side of the second ring block (231) away from the workpiece fixture (14); a fourth fixed block (235) is fixedly mounted on the end of the first slide bar (234); a movable protrusion (236) is slidably mounted on the outside of the first slide bar (234); a first movable ring (237) is fixedly mounted on the end of the movable protrusion (236); a second position-limiting ring (238) is rotatably mounted on the outside of the first movable ring (237); and a middle groove (239) is provided at the center of the movable protrusion (236); An internal connecting column (2331) is provided inside the position-limiting follower block (233), and the internal connecting column (2331) is rotatably mounted on the third fixed block (232). A clamping protrusion (2332) is fixedly mounted on the end of the position-limiting follower block (233), and the clamping protrusion (2332) is used to clamp the drill bit (163). A torsion spring is provided at the position of the internal connecting column (2331) and the third fixed block (232).

2. The device for machining a stigma valve hole according to claim 1, characterized in that: The drill moving member (16) comprises a first sliding block (161) slidably mounted on the outside of the guide block (17); a drill clamp (162) is rotatably mounted inside the first sliding block (161); and a drill (163) is clamped on the drill clamp (162).

3. The device for machining a stigma valve hole according to claim 2, characterized in that: The limiting device (2) comprises a detection telescopic member (22) slidably mounted on a connecting member (21), the detection telescopic member (22) being connected to the limiting follower (23), and a cutting member (24) being fixedly mounted on the side of the limiting follower (23) close to the workpiece fixture (14).

4. The device for machining a stigma valve hole according to claim 3, characterized in that: The detection telescopic member (22) comprises a second telescopic rod (221) slidably mounted inside a first fixed plate (212), a first spring (222) being provided on the outside of the second telescopic rod (221), and a second fixed plate (223) being fixedly mounted on the end of the second telescopic rod (221) away from the first fixed plate (212).

5. The device for machining a stigma valve hole according to claim 4, characterized in that: The cutting member (24) comprises a fourth telescopic rod (241) fixedly mounted on the side of the second ring block (231); a telescopic frame (243) is movably mounted on the end of the fourth telescopic rod (241); a scraper (244) is fixedly mounted on the telescopic frame (243); a limiting U-shaped block (242) is fixedly mounted on the side of the clamping protrusion (2332); and the scraper (244) is rotatably mounted on the limiting U-shaped block (242).

6. The device for machining a stigma valve hole according to claim 5, characterized in that: The end of the second telescopic rod (221) passes through the interior of the first fixing plate (212) and is fixedly mounted to the side of the first ring block (213).

7. The device for machining a column valve hole according to claim 6, characterized in that: The second limiting ring (238) is concentric with the first moving ring (237), and the first ring block (213) is concentric with the second ring block (231).

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