A drilling device for producing end caps for diaphragm compressors

Abstract

This invention relates to the field of deep hole drilling technology, specifically disclosing a drilling device for producing end caps of diaphragm compressors. The device includes a drilling mechanism comprising a drill rod and a liquid delivery pipe. The drill rod is rotatably connected to a drive mechanism, which drives the drill rod to drill a hole in the end cap. The liquid delivery pipe is installed inside the drill rod for supplying coolant into it. Multiple intermittently arranged spiral arc-shaped grooves are provided on the outer side of the drill rod. When the drill rod rotates, the spiral arc-shaped grooves cut off strip-shaped waste and push the waste out of the hole. Drainage holes are provided on the spiral arc-shaped grooves, and multiple outlet holes are provided on the liquid delivery pipe, corresponding to the multiple drainage holes. The liquid delivery pipe is connected to the drive mechanism, and the outlet holes and drainage holes can intermittently communicate when the drill rod rotates, allowing coolant to be intermittently supplied into the hole. This drilling device for producing end caps of diaphragm compressors can cut off strip-shaped waste to avoid damage to the drill rod.

Description

Technical Field

[0001] This invention relates to the field of deep hole drilling technology, specifically to a drilling equipment for the production of end caps for diaphragm compressors. Background Technology

[0002] A diaphragm compressor is a special type of positive displacement compressor that completely isolates the compressed medium from the drive mechanism through an elastic diaphragm. It features leak-free operation and high-purity delivery, and is widely used in fields with extremely high requirements for hygiene and safety. The core of a diaphragm compressor lies in using an elastic diaphragm made of metal (or composite material) as an intermediate barrier. When the crankshaft drives the connecting rod to reciprocate, power is transmitted to one side of the diaphragm (oil chamber) through hydraulic oil, causing the diaphragm to undergo periodic deformation (bulging or denting). The working chamber (gas chamber) on the other side then achieves the process of gas intake → compression → discharge due to volume changes. When processing the end cover of a diaphragm compressor, drilling equipment is required to drill deep holes in the end cover to form pressure relief holes or balance holes.

[0003] Chinese patent document CN213701883U discloses a deep hole drilling device, including a sliding device and a drill bit device. Both the sliding device and the drill bit device are mounted on a base, which has a first guide rail. The sliding device is connected to the base via the first guide rail. The drill bit device includes a drill bit, a power box, and a water pipe. The drill bit is connected to the power box, and the water pipe is connected to the drill bit via the power box. One end of the drill bit has a spiral chip removal groove, and the chip removal groove has a water pipe hole. The water pipe is connected to the drill bit via the water pipe hole. The sliding device includes a base plate, with a ball screw located in the center of the bottom of the base plate. The ball screw is connected to a servo motor. Sliding grooves are located on both sides of the bottom of the base plate, and the base plate is connected to the first guide rail via the sliding grooves. A second guide rail is provided on the base plate, and a clamping block is provided on the second guide rail. A hydraulic cylinder is located on the left side of the clamping block, and the clamping block includes a left clamping block and a right clamping block.

[0004] During operation, the workpiece to be drilled is first placed on the clamping blocks. Then, the left and right clamping blocks clamp the workpiece under the action of hydraulic cylinders. After clamping, the position of the workpiece is adjusted via the second guide rail so that the drilling position is aligned with the drill bit, thus completing the workpiece installation. Subsequently, the entire sliding device slides to the drill bit position via the first guide rail, driven by a ball screw. The ball screw is driven by a servo motor, and the drill bit begins to rotate under the action of the power box. The sliding device maintains the speed of sliding towards the drill bit, thereby realizing the drilling of the workpiece. During the drilling process, water is supplied to the drill bit through a water pipe to cool it down, and chips are removed during the drilling process through a chip removal groove.

[0005] However, the above-mentioned patent documents also have the following shortcomings: When drilling deep holes in the end cap using drilling equipment, the drilling operation of the end cap is usually performed by rotating drill rod. In order to discharge the strip-shaped waste generated during drilling, spiral grooves are often set on the drill rod to discharge the strip-shaped waste outward. However, when drilling deep holes in the end cap using drill rod, the strip-shaped waste is easy to get tangled on the drill rod and block the spiral groove, so that the waste cannot be discharged in time, thereby damaging the drill rod. Summary of the Invention

[0006] This invention provides a drilling device for the production of end caps for diaphragm compressors, aiming to solve the problem in related technologies where strip-shaped waste chips easily get entangled on the drill rod and clog the spiral groove, preventing the waste chips from being discharged in time and thus damaging the drill rod.

[0007] The present invention discloses a drilling device for producing end caps of diaphragm compressors, comprising a frame, a positioning mechanism, and a drive mechanism. The positioning mechanism and the drive mechanism are both connected within the frame. The device also includes a drilling mechanism, which comprises a drill rod and a liquid delivery pipe. The drill rod is rotatably connected to the drive mechanism, which drives the drill rod to drill a hole in the end cap. The liquid delivery pipe is installed inside the drill rod for supplying coolant into the drill rod. Multiple intermittently arranged spiral arc-shaped grooves are provided on the outer side of the drill rod. When the drill rod rotates, the spiral arc-shaped grooves can cut off strip-shaped waste and push the waste out of the hole. Drainage holes are provided on the spiral arc-shaped grooves, and multiple outlet holes are provided on the liquid delivery pipe. The multiple outlet holes correspond to the multiple drainage holes. The liquid delivery pipe is connected to the drive mechanism. When the drill rod rotates, the outlet holes and drainage holes can intermittently communicate, allowing coolant to be intermittently supplied into the hole.

[0008] Beneficial effects: When drilling deep holes in the end cap, the end cap is first placed on the positioning mechanism, which clamps and fixes it. Then, the drilling mechanism is driven by the drive mechanism to move so that the drill rod in the drilling mechanism is aligned with the part to be drilled on the end cap. Subsequently, the drive mechanism is started to rotate the drill rod and move it towards the end cap so that the drill rod can drill the part to be drilled on the end cap. The strip-shaped waste generated when the drill rod drills the end cap is sheared by multiple intermittently set spiral arc grooves and pushed out of the hole. At the same time, the coolant is intermittently discharged from the drain hole through the intermittent connection between the outlet hole and the drain hole. This not only cools the drill rod, but also helps to push the waste under the guidance of the spiral arc grooves, so as to avoid the phenomenon that the drill rod is damaged due to the strip-shaped waste being wrapped on it and unable to be discharged in time.

[0009] Preferably, the drilling mechanism further includes a support base connected to the drive mechanism, and the drill rod passes through the support base.

[0010] Its effect is that the support seat can support and guide the drill rod, so as to avoid the drill rod shaking due to excessive suspension length when drilling the end cap.

[0011] Preferably, the drilling mechanism further includes a corrugated sleeve, which is connected between the support base and the drive mechanism. The corrugated sleeve is fitted on the outside of the drill rod and does not contact the drill rod.

[0012] Its effect is that the corrugated sleeve can block the drill rod part that does not extend into the end cover, thereby blocking the drain hole on the outside of the drill rod part that does not extend into the end cover, avoiding waste of coolant and pollution of the surrounding environment caused by coolant splashing. At the same time, the coolant between the corrugated sleeve and the drill rod can enhance the cooling effect on the drill rod.

[0013] Preferably, the corrugated sleeve is made of an elastic metal material.

[0014] Preferably, the infusion pipe is connected to an external coolant delivery device.

[0015] Its effect is that coolant can be delivered into the delivery pipe through external coolant delivery equipment, so as to cool the drill pipe.

[0016] Preferably, the driving mechanism includes a first driving component, a second driving component, a third driving component, and a fourth driving component. The first driving component is connected inside the frame, the second driving component is connected to the first driving component, the third driving component is connected to the second driving component, the fourth driving component is connected to the third driving component, and the drilling mechanism is mounted on the fourth driving component.

[0017] Its effects are as follows: Driver 1 can drive driver 2 to move towards or away from the end cover, so that driver 2 can drive driver 3, driver 4 and drilling mechanism to move closer to the end cover; driver 2 can drive driver 3 to move up and down, so that driver 3 can drive driver 4 and drilling mechanism to move up and down, thereby aligning the drill rod in the drilling mechanism with the part of the end cover to be drilled; driver 4 can drive the drill rod to rotate, thereby providing power for the drilling operation of the drill rod on the end cover; driver 3 can drive the drill rod in the drilling mechanism to move towards the end cover, thereby providing power for the movement of the drill rod.

[0018] Preferably, the third driving component includes a mounting bracket, a lead screw, and a first driving source. The mounting bracket is mounted on the second driving component, the first driving source is connected to the mounting bracket, the lead screw is rotatably connected to the mounting bracket, and the lead screw is connected to the output end of the first driving source.

[0019] Its effect is that the drive source can drive the lead screw to rotate, so that the lead screw drives the drive component four to move, thereby the drive component four drives the drill rod in the drilling mechanism to move towards the end cap.

[0020] Preferably, the driving component four includes a mounting base, a second driving source, a first gear, and a second gear. The mounting base is slidably connected within the mounting frame and is threadedly connected to the lead screw. The drill rod is rotatably connected to the mounting base. The second driving source is connected within the mounting base. The first gear is connected to the drill rod, and the second gear is connected to the second driving source. The second gear and the first gear are meshed together.

[0021] Its effect is that the second drive source can drive the second gear and the first gear to mesh and transmit power, so the first gear drives the drill rod to rotate. When the third drive component drives the fourth drive component to move towards the end cover, the rotating drill rod performs drilling operation on the end cover.

[0022] Preferably, the drill rod has an installation hole, the infusion tube is installed in the installation hole, and one end of the infusion tube extending out of the drill rod is connected to the mounting base.

[0023] Its effect is that the internal structure of the drill pipe can be supported through the infusion tube, thereby enhancing the structural strength of the drill pipe.

[0024] Preferably, the positioning mechanism includes a three-jaw gripper and an adjusting member, the three-jaw gripper being connected to the adjusting member, and the adjusting member being installed inside the frame.

[0025] Its effect is that the end cap can be clamped and fixed by the three-jaw clamping device, and the three-jaw clamping device can be rotated by the adjusting device so that the multiple parts on the end cap that need to be drilled are aligned with the drill rod in the drilling mechanism in sequence, so that the drilling mechanism can drill the corresponding number of deep holes on the end cap according to actual needs.

[0026] The beneficial effects of this invention are:

[0027] 1. When drilling into the end cap using a rotating drill rod, the drill rod rotates and cuts into the end cap. The continuous strip-shaped waste chips generated during cutting are first captured by the leading edge of the spiral arc groove. Driven by centrifugal force, they move towards the tail of the groove along a pre-set spiral trajectory. As the waste chips move along the groove, the radius of curvature of the arc structure gradually changes, creating a natural curling force. Combined with the smooth, low-friction surface treatment of the groove wall, this causes the long strip-shaped waste chips to gradually break into short segments of controllable length. Furthermore, multiple spiral grooves are staggered with a specific phase difference, ensuring that the waste chips in each channel are independent yet complementary and redundant. When a certain spiral arc groove experiences momentary congestion, the remaining spiral arc grooves automatically share the load to maintain overall unobstructed flow, ensuring the drill rod maintains a continuously efficient and stable cutting state. Whenever the drain hole on the drill rod and the outlet hole on the delivery pipe momentarily connect, the high-pressure coolant transported inside the delivery pipe can be sprayed onto the cutting area to achieve targeted cooling and lubrication. Furthermore, the coolant can push the cut-off chips under the guidance of the spiral arc grooves to ensure smooth chip discharge, thus preventing damage to the drill rod caused by strip-shaped chips entangled on it and unable to be discharged in time.

[0028] 2. The infusion tube installed in the mounting hole on the drill rod can support the inside of the drill rod, thereby enhancing the structural strength of the drill rod.

[0029] 3. By using multiple intermittent spiral arc grooves, more solid material can be retained to connect the various spiral arc grooves, thereby enhancing the structural strength of the drill pipe.

[0030] 4. The corrugated sleeve can shield the drill rod portion that does not extend into the end cover, thereby blocking the drain hole on the outside of the drill rod portion that does not extend into the end cover. This prevents coolant from splashing and causing waste of coolant and pollution to the surrounding environment. At the same time, the coolant between the corrugated sleeve and the drill rod can enhance the cooling effect on the drill rod. Attached Figure Description

[0031] Figure 1 This is a three-dimensional structural diagram of the present invention.

[0032] Figure 2 This is a schematic diagram of the front cross-sectional structure of the present invention.

[0033] Figure 3 This is a three-dimensional structural diagram of the positioning mechanism, driving mechanism, and drilling mechanism of the present invention.

[0034] Figure 4 This is a front view cross-sectional structural diagram of the drive mechanism of the present invention.

[0035] Figure 5 This is a front view cross-sectional structural schematic diagram of the drilling mechanism of the present invention.

[0036] Figure 6 This is a front view structural schematic diagram of the drilling mechanism of the present invention.

[0037] Figure label:

[0038] 1. Frame; 2. Positioning mechanism; 21. Three-jaw gripper; 22. Adjusting component; 3. Drive mechanism; 31. Drive component one; 32. Drive component two; 33. Drive component three; 331. Mounting bracket; 332. Lead screw; 333. Drive source one; 34. Drive component four; 341. Mounting base; 342. Drive source two; 343. Gear one; 344. Gear two; 4. Drilling mechanism; 41. Support base; 42. Drill rod; 43. Spiral arc groove; 44. Drain hole; 45. Infusion pipe; 46. Outlet hole; 47. Corrugated sleeve. Detailed Implementation

[0039] Embodiments of the present invention are described in detail below, examples of which are illustrated in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the present invention, and should not be construed as limiting the present invention.

[0040] like Figures 1 to 6 As shown, the drilling equipment for producing end caps of diaphragm compressors of the present invention includes a frame 1, a positioning mechanism 2, a driving mechanism 3, and a drilling mechanism 4. The positioning mechanism 2 and the driving mechanism 3 are both mounted on the frame 1. The positioning mechanism 2 can clamp and position the end cap to facilitate subsequent drilling operations on the end cap. The drilling mechanism 4 is connected to the driving mechanism 3. The driving mechanism 3 can drive the drilling mechanism 4 to move so that the drilling mechanism 4 can complete the drilling operation on the end cap. The drilling mechanism 4 includes a drill rod 42. The drill rod 42 can drill a deep hole in the end cap and cut off the strip-shaped waste generated when the drill rod 42 drills the end cap, preventing the waste from getting tangled on the drill rod 42, so as to avoid damage to the drill rod 42 due to blockage in the drill hole caused by the waste getting tangled on the drill rod 42.

[0041] When drilling a deep hole in the end cap using drill rod 42, first place the end cap on the positioning mechanism 2, and use the positioning mechanism 2 to clamp and position the end cap. Then start the drive mechanism 3, which drives the drill rod 42 in the drilling mechanism 4 to rotate and move the drill rod 42 toward the end cap. The rotating drill rod 42 can then drill a deep hole in the end cap.

[0042] like Figure 1 and Figure 3 As shown, the positioning mechanism 2 includes a three-jaw clamping member 21 and an adjusting member 22. The three-jaw clamping member 21 is connected to the adjusting member 22, which is installed inside the frame 1. The three-jaw clamping member 21 can clamp and fix the end cover. The adjusting member 22 can drive the three-jaw clamping member 21 to rotate so that the multiple parts on the end cover that need to be drilled are sequentially aligned with the drill rod 42 in the drilling mechanism 4, so that the drilling mechanism 4 can drill a corresponding number of deep holes on the end cover according to actual needs (the three-jaw clamping member 21 and the adjusting member 22 are both existing technologies and will not be described in detail here).

[0043] When drilling a deep hole in the end cap using drill rod 42, the end cap is placed on the three-jaw clamp 21 and held in place by the three-jaw clamp 21. Then, the drive mechanism 3 is activated to drive the drill rod 42 in the drilling mechanism 4 to drill the end cap, thereby drilling a deep hole in the end cap. After drilling is completed, the drive mechanism 3 drives the drill rod 42 in the drilling mechanism 4 to disengage the drill rod 42 from the deep hole in the end cap. Then, the adjustment component 22 is activated, which drives the three-jaw clamp 21 to rotate. When the three-jaw clamp 21 rotates, it drives the end cap to rotate, thereby adjusting the end cap so that the next part of the end cap to be drilled is aligned with the drill rod 42 in the drilling mechanism 4, thereby achieving the purpose of drilling the corresponding number of deep holes in the end cap according to actual needs.

[0044] like Figures 1 to 4As shown, the drive mechanism 3 includes drive component 1 31, drive component 2 32, drive component 33, and drive component 4 34. Drive component 1 31 is connected inside the frame 1, drive component 2 32 is connected to drive component 1 31, drive component 33 is connected to drive component 2 32, and drive component 4 34 is connected to drive component 33. The drilling mechanism 4 is mounted on drive component 4 34. Drive component 1 31 is used to drive drive component 2 32 to move towards or away from the end cover, so that drive component 2 32 drives drive component 33, drive component 4 34, and drilling mechanism 4 towards or away from the end cover. When drilling mechanism 4 moves towards the end cover, it stops moving after reaching a set position. At this time, drive component 2 32 can pass through... The drive component 33 is driven to move up and down, so that the drive component 33 drives the drive component 4 and the drilling mechanism 4 to move up and down, thereby aligning the drill rod 42 in the drilling mechanism 4 with the part of the end cap to be drilled. When the drilling mechanism 4 moves away from the end cap, it can provide sufficient space for the installation and removal of the end cap. The drive component 33 can drive the drill rod 42 in the drilling mechanism 4 to move closer to the end cap, thereby providing power for the movement of the drill rod 42. The drive component 44 can drive the drill rod 42 to rotate, thereby providing power for the drilling operation of the drill rod 42 on the end cap (the drive component 1 31 and the drive component 2 32 are existing technologies and will not be described in detail here).

[0045] When drilling the end cap, firstly, drive component 31 is activated, which drives drive component 32 to move drive component 33, drive component 4, and drilling mechanism 4 closer to the end cap. Then, drive component 32 is activated, which drives drive component 33 to move downward. Drive component 33 then moves drive component 4 and drilling mechanism 4 downward until the drill rod 42 in drilling mechanism 4 is aligned with the part of the end cap to be drilled. Then, drive component 4 is activated, which rotates the drill rod 42 in drive component 4. Finally, drive component 33 is activated, which drives the drill rod 42 to contact the end cap, thus completing the drilling operation on the end cap.

[0046] Continue to refer to Figures 1 to 4 As shown, drive component 33 includes a mounting bracket 331, a lead screw 332, and a drive source 333. The mounting bracket 331 is mounted on drive component 32, and drive source 333 is connected to the mounting bracket 331. The lead screw 332 is rotatably connected to the mounting bracket 331. Drive source 333 is a motor. The lead screw 332 is connected to the output end of drive source 333. Drive component 44 is mounted on the lead screw 332. When drive source 333 is started, it drives the lead screw 332 to rotate, so that the lead screw 332 drives drive component 44 to move. Thus, drive component 44 drives the drill rod 42 in the drilling mechanism 4 to move toward the end cover.

[0047] When drilling the end cap, the drive unit 44 is activated to drive the drill rod 42 in the drilling mechanism 4 to rotate. Then, the drive source 333 is activated, which drives the lead screw 332 to rotate. When the lead screw 332 rotates, it drives the drive unit 44 to move, so that the drive unit 44 drives the drill rod 42 to move towards the end cap, thereby performing the drilling operation on the end cap.

[0048] Continue to refer to Figures 1 to 4 As shown, the drive unit 4 34 includes a mounting base 341, a second drive source 342, a first gear 343, and a second gear 344. The mounting base 341 is slidably connected to the mounting bracket 331 and is threadedly connected to the lead screw 332. The drill rod 42 is rotatably connected to the mounting base 341. The second drive source 342 is connected to the mounting base 341. The first gear 343 is connected to the drill rod 42. The second drive source 342 is a motor. The second gear 344 is connected to the output end of the second drive source 342. The second gear 344 and the first gear 343 are meshed together so that when the second drive source 342 drives the second gear 344 and the first gear 343 to mesh, it can drive the drill rod 42 to rotate on the mounting base 341 for subsequent drilling operations on the end cap.

[0049] When drilling the end cap, drive source 2 342 is started, which drives gear 2 344 and gear 1 343 to mesh and transmit power. Gear 1 343 drives the drill rod 42 to rotate. When drive component 3 33 drives drive component 4 34 to move towards the end cap, the drill rod 42 rotates to drill the end cap.

[0050] like Figures 1 to 6As shown, the drilling mechanism 4 also includes a support base 41, an infusion pipe 45, and a corrugated sleeve 47. The support base 41 is connected to the mounting bracket 331. The drill rod 42 passes through the support base 41, which supports and guides the drill rod 42 to prevent it from shaking due to excessive suspension length when drilling the end cap. An installation hole is provided inside the drill rod 42, and the infusion pipe 45 is installed in the installation hole. The right end of the infusion pipe 45 extends out of the installation hole and connects to the mounting base 341. The infusion pipe 45 supports the interior of the drill rod 42 to enhance its structural strength. The right end of the infusion pipe 45 is connected to an external coolant delivery device (external coolant delivery device is existing technology and is not shown in the figure, so it will not be described in detail here). The external coolant delivery device delivers coolant to the infusion pipe 45, thereby cooling the drill rod 42 and extending its service life. Multiple intermittent devices are provided on the outer side of the drill rod 42. When the drill rod 42 rotates and cuts into the end cap, the spiral arc grooves 43 evenly distributed on its surface simultaneously start chip removal. Specifically, the continuous strip-shaped waste chips generated by cutting are first captured by the leading edge of the groove on the spiral arc groove 43 and move towards the tail of the groove under the centrifugal force along the pre-set spiral trajectory. As the waste chips move along the groove, the radius of curvature of the arc structure gradually changes to form a natural curling force. Combined with the smooth and low-friction surface treatment of the groove wall, the long strip-shaped waste chips are gradually broken into short segments of controllable length. The multiple spiral grooves are staggered with a specific phase difference, so that the waste chips in each channel are independent and complementary. When a certain spiral arc groove 43 is momentarily blocked, the other spiral arc grooves 43 automatically share the load to maintain overall smoothness, so that the drill rod 42 can continuously maintain a high-efficiency and stable cutting state. Moreover, through multiple intermittent spiral arc grooves 43, more solid material can be retained to connect the various spiral arc grooves 43, which enhances the structural strength of the drill rod 42.

[0051] Each spiral arc groove 43 is provided with a drain hole 44, which is connected to the mounting hole inside the drill rod 42. The infusion pipe 45 is provided with multiple outlet holes 46, each corresponding to a drain hole 44. When the drill rod 42 rotates, the drain holes 44 on the drill rod 42 intermittently connect with the outlet holes 46 on the infusion pipe 45. During operation, external coolant delivery equipment supplies coolant to the infusion pipe 45, continuously supplying coolant into the drill rod 42. As the drill rod 42 rotates, the drain holes in the spiral arc grooves 43 on the surface of the drill rod 42 drain out. The hole 44 and the outlet hole 46 on the fluid supply pipe 45 inside the mounting hole form a periodic misalignment. Specifically, whenever the drain hole 44 on the drill rod 42 and the outlet hole 46 on the fluid supply pipe 45 are momentarily connected, the high-pressure coolant transported inside the fluid supply pipe 45 can be sprayed to the cutting area to achieve point cooling and lubrication. The coolant can also push the cut-off chips under the guidance of the spiral arc groove 43 to ensure the smooth discharge of chips. Moreover, as the drill rod 42 continues to rotate, after the drain hole 44 and the outlet hole 46 are misaligned, the coolant no longer flows out from the drain hole 44, which can reduce the loss of coolant.

[0052] The corrugated sleeve 47 is connected between the mounting base 341 and the support base 41. The corrugated sleeve 47 is fitted on the outside of the drill rod 42, but does not contact the drill rod 42. When drilling the end cover through the drill rod 42, the corrugated sleeve 47 blocks the part of the drill rod 42 that does not extend into the end cover, thereby blocking the drain hole 44 on the outside of the part of the drill rod 42 that does not extend into the end cover, avoiding waste of coolant and pollution to the surrounding environment due to coolant splashing. At the same time, the coolant between the corrugated sleeve 47 and the drill rod 42 can enhance the cooling effect on the drill rod 42. The corrugated sleeve 47 is made of elastic metal material.

[0053] When drilling through the end cap using the rotating drill rod 42, the drill rod 42 rotates and cuts into the end cap. The continuous strip-shaped waste chips generated during cutting are first captured by the leading edge of the spiral arc groove 43. They move towards the tail of the groove under the propulsion of centrifugal force along a pre-set spiral trajectory. As the waste chips move along the groove, the radius of curvature of the arc structure gradually changes, forming a natural curling force. Combined with the smooth, low-friction surface treatment of the groove wall, this causes the long strip-shaped waste chips to gradually break into short segments of controllable length. Multiple spiral grooves are staggered with a specific phase difference, making the waste chips in each channel independent yet complementary and redundant. When a spiral arc groove 43 experiences momentary congestion, the other spiral arc grooves 43 automatically share the load to maintain overall unobstructed flow, allowing the drill rod 42 to maintain a continuously efficient and stable cutting state. During the drilling process, through external... The coolant delivery device delivers coolant into the delivery pipe 45. During the rotation of the drill rod 42, whenever the drain hole 44 on the drill rod 42 and the outlet hole 46 on the delivery pipe 45 are momentarily connected, the high-pressure coolant delivered inside the delivery pipe 45 can be sprayed onto the cutting area to achieve targeted cooling and lubrication. The coolant can also push the cut-off chips under the guidance of the spiral arc groove 43 to ensure smooth chip discharge. As the drill rod 42 continues to rotate, after the drain hole 44 and the outlet hole 46 are misaligned, the coolant no longer flows out from the drain hole 44, which can reduce coolant loss. At the same time, the corrugated sleeve 47 blocks the part of the drill rod 42 that does not extend into the end cover, thereby blocking the drain hole 44 on the outside of the part of the drill rod 42 that does not extend into the end cover.

[0054] Working principle:

[0055] When drilling holes in the end cap, the end cap is placed on the three-jaw clamp 21 and clamped and fixed by the three-jaw clamp 21.

[0056] Start drive component 31, which drives drive component 32 to move drive component 33, drive component 4, and drilling mechanism 4 closer to the end cover.

[0057] Start the second drive component 32, which drives the third drive component 33 to move down. The third drive component 33 then drives the fourth drive component 34 and the drilling mechanism 4 to move down until the drill rod 42 in the drilling mechanism 4 is aligned with the part to be drilled on the end cover.

[0058] Start drive source 2 342, which drives gear 2 344 and gear 1 343 to mesh and transmit power, thereby driving drill rod 42 to rotate.

[0059] Start the drive source 333, which drives the lead screw 332 to rotate. When the lead screw 332 rotates, it drives the drive component 34 to move, so that the drive component 34 drives the drill rod 42 to move towards the end cover, thereby performing a drilling operation on the end cover.

[0060] The continuous strip-shaped waste chips generated during cutting are first captured by the leading edge of the spiral arc groove 43. They move towards the tail of the groove under the propulsion of centrifugal force along a pre-set spiral trajectory. As the waste chips move along the groove, the radius of curvature of the arc structure gradually changes, forming a natural curling force. Combined with the smooth and low-friction surface treatment of the groove wall, the long strip-shaped waste chips are gradually broken into short segments of controllable length. Multiple spiral grooves are staggered with a specific phase difference, so that the waste chips in each channel are independent and complementary. When a spiral arc groove 43 becomes momentarily congested, the other spiral arc grooves 43 automatically share the load to maintain overall smooth flow, so that the drill rod 42 can continuously maintain a highly efficient and stable cutting state.

[0061] Coolant is delivered to the delivery pipe 45 via an external coolant delivery device. During the rotation of the drill rod 42, whenever the drain hole 44 on the drill rod 42 and the outlet hole 46 on the delivery pipe 45 are momentarily connected, the high-pressure coolant delivered inside the delivery pipe 45 can be sprayed onto the cutting area to achieve targeted cooling and lubrication. The coolant can also push the cut-off chips under the guidance of the spiral arc groove 43 to ensure smooth chip discharge. As the drill rod 42 continues to rotate, after the drain hole 44 and the outlet hole 46 are misaligned, the coolant no longer flows out from the drain hole 44. The corrugated sleeve 47 blocks the part of the drill rod 42 that does not extend into the end cover, thereby blocking the drain hole 44 on the outside of the part of the drill rod 42 that does not extend into the end cover.

[0062] After drilling is completed, drive source 333 is started, which drives lead screw 332 to rotate. When lead screw 332 rotates, it drives drive component 34 to move, so that drive component 34 drives drill rod 42 to move away from end cover. Then, adjuster 22 is started, which drives three-jaw clamp 21 to rotate. When three-jaw clamp 21 rotates, it drives end cover to rotate, thereby adjusting end cover so that the next part of end cover to be drilled is aligned with drill rod 42 in drilling mechanism 4. Then, drilling operation can be performed on the next part of end cover to be drilled.

[0063] Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of the present invention.

Claims

1. A drilling device for producing end caps of diaphragm compressors, comprising a frame (1), a positioning mechanism (2), and a drive mechanism (3), wherein the positioning mechanism (2) and the drive mechanism (3) are both connected within the frame (1), characterized in that, It also includes a drilling mechanism (4), which includes a drill rod (42) and a delivery tube (45). The drill rod (42) is rotatably connected to the drive mechanism (3), which can drive the drill rod (42) to drill a hole in the end cap. The delivery tube (45) is installed inside the drill rod (42) to deliver coolant into the drill rod (42). The outside of the drill rod (42) is provided with multiple intermittently arranged spiral arc grooves (43). When the drill rod (42) rotates, it can be driven by the spiral... The arc groove (43) cuts the strip-shaped waste and pushes the waste out of the borehole. The spiral arc groove (43) is provided with a drain hole (44). The liquid delivery pipe (45) is provided with multiple outlet holes (46). The multiple outlet holes (46) are corresponding to the multiple drain holes (44). The liquid delivery pipe (45) is connected to the drive mechanism (3). When the drill rod (42) rotates, the outlet holes (46) and the drain holes (44) can be intermittently connected so that the coolant is intermittently delivered into the borehole. The drilling mechanism (4) also includes a support base (41), which is connected to the drive mechanism (3), and the drill rod (42) passes through the support base (41). The drilling mechanism (4) also includes a corrugated sleeve (47), which is connected between the support base (41) and the drive mechanism (3). The corrugated sleeve (47) is fitted on the outside of the drill rod (42) and does not contact the drill rod (42).

2. The drilling equipment for producing end caps of diaphragm compressors according to claim 1, characterized in that, The corrugated sleeve (47) is made of elastic metal material.

3. The drilling equipment for producing end caps of diaphragm compressors according to claim 1, characterized in that, The infusion pipe (45) is connected to an external coolant delivery device.

4. The drilling equipment for producing end caps of diaphragm compressors according to claim 1, characterized in that, The drive mechanism (3) includes drive component one (31), drive component two (32), drive component three (33) and drive component four (34). Drive component one (31) is connected inside the frame (1), drive component two (32) is connected to drive component one (31), drive component three (33) is connected to drive component two (32), drive component four (34) is connected to drive component three (33), and drilling mechanism (4) is installed on drive component four (34).

5. The drilling equipment for producing end caps of diaphragm compressors according to claim 4, characterized in that, The third driving component (33) includes a mounting bracket (331), a lead screw (332), and a first driving source (333). The mounting bracket (331) is mounted on the second driving component (32), the first driving source (333) is connected to the mounting bracket (331), the lead screw (332) is rotatably connected to the mounting bracket (331), and the lead screw (332) is connected to the output end of the first driving source (333).

6. The drilling equipment for producing end caps of diaphragm compressors according to claim 5, characterized in that, The driving component four (34) includes a mounting base (341), a second driving source (342), a first gear (343), and a second gear (344). The mounting base (341) is slidably connected to the mounting bracket (331), and the mounting base (341) is threadedly connected to the lead screw (332). The drill rod (42) is rotatably connected to the mounting base (341). The second driving source (342) is connected to the mounting base (341). The first gear (343) is connected to the drill rod (42). The second gear (344) is connected to the second driving source (342). The second gear (344) and the first gear (343) are meshed together.

7. The drilling equipment for producing end caps of diaphragm compressors according to claim 6, characterized in that, The drill rod (42) has an installation hole, and the infusion tube (45) is installed in the installation hole. One end of the infusion tube (45) extending out of the drill rod (42) is connected to the mounting base (341).

8. The drilling equipment for producing end caps of diaphragm compressors according to any one of claims 1-7, characterized in that, The positioning mechanism (2) includes a three-jaw gripper (21) and an adjusting member (22). The three-jaw gripper (21) is connected to the adjusting member (22), and the adjusting member (22) is installed in the frame (1).

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