A pump cover edge positioning reaming device
By designing a pump cover edge positioning and enlarging device, multi-angle synchronous clamping and positioning and real-time separation of metal chips and coolant were achieved, solving the problems of chip accumulation and coolant contamination, improving processing accuracy and cleaning efficiency, and extending the service life of coolant.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- ZHEJIANG GUDA PUMP CO LTD
- Filing Date
- 2025-11-25
- Publication Date
- 2026-06-19
AI Technical Summary
During the metal enlargement process of pump cover, chips tend to accumulate inside the clamping mechanism, making cleaning difficult and causing serious coolant contamination, resulting in low equipment safety and low resource utilization efficiency.
A pump cover edge positioning and enlarging device was designed. It adopts a linkage structure of movable sliding seat, adjustable limit end block, limit rod and elastic positioning pad to achieve multi-angle synchronous pressing and positioning. Through the closed filter unit composed of separation disc and frustum-shaped transmission plate, metal debris and coolant are separated in real time, and the filtered coolant is discharged by extraction pipe.
It significantly improves hole enlargement accuracy, reduces workpiece offset, lowers cleaning difficulty, extends coolant lifespan, and reduces equipment contamination and resource waste.
Smart Images

Figure CN121289546B_ABST
Abstract
Description
Technical Field
[0001] This invention relates to the field of water pump processing and manufacturing technology, specifically to a pump cover edge positioning and enlarging device. Background Technology
[0002] A water pump is a mechanical device widely used to transport liquids (mainly water) or increase the pressure of liquids. It is an indispensable core device in many fields such as water conservancy projects, industrial systems, agricultural irrigation, building water supply, heating, ventilation and air conditioning, sewage treatment, fire protection systems and even household water supply.
[0003] In the metal reaming process of pump cover, the recovery of metal shavings is a key link to ensure processing efficiency, equipment safety, environmental cleanliness, and resource reuse. During the reaming process, a large amount of coolant will carry away the chips, increasing their weight and viscosity. Although the chips can be discharged along with the coolant, the chips generated during the reaming process tend to accumulate inside the clamping mechanism, affecting the difficulty of subsequent cleaning. Moreover, it is necessary to efficiently separate the fine metal shavings from the coolant to keep the coolant clean, extend its service life, and reduce replacement and disposal costs. To address these issues, we propose a pump cover edge positioning reaming device. Summary of the Invention
[0004] The purpose of this invention is to provide a pump cover edge positioning and enlarging device to solve the problems mentioned in the background art.
[0005] To achieve the above objectives, the present invention provides the following technical solution: a pump cover edge positioning and enlarging device, comprising,
[0006] A connecting base is provided, with a positioning plate on the top of the connecting base, a plurality of fixing seats on the positioning plate, a plurality of fixing holes on the fixing seats, a limiting plate on the top of the fixing seats, a separation plate for coolant separation inside the limiting plate, a set of sliding seats on both sides of the positioning plate, an arc-shaped transmission groove on the top of the connecting base, the sliding seats being movably disposed inside the arc-shaped transmission groove, and a movable limiting end block on the top of the sliding seat for pressing and limiting against the top of the pump cover;
[0007] The positioning plate is equipped with several connecting frames, the positions of which correspond to the gaps of the fixed base. A sliding shaft is movably mounted inside each connecting frame, and a limiting rod is provided at the top of the sliding shaft to abut against the outer wall of the pump cover for auxiliary support and positioning. When the pump cover needs to be enlarged, the pump cover can be clamped onto the top of the limiting plate and abutted against the outer wall of the pump cover with the help of a positioning pad for auxiliary positioning. The positions of the drive shaft and conveying shaft can be adjusted, and the limiting end block can abut against the top of the pump cover, allowing for positioning and clamping of the pump cover from multiple angles, reducing the possibility of displacement during subsequent enlargement. During the enlargement process, coolant needs to be added using external equipment to prevent the enlarger drill from overheating. The coolant can be conducted along the hole to the separation plate, separating metal chips from the coolant. The filtered coolant is then quickly discharged using external equipment, reducing the spread of small chip particles mixed in the coolant onto the entire fixture, thus reducing the difficulty of subsequent cleaning.
[0008] Preferably, a welding plate is installed on the top of the positioning plate, a transmission push rod is installed on the top of the welding plate, and a transmission tube is clamped on the top of the transmission push rod. Multiple clamping plates are provided on the edge of the transmission tube, and a transmission pull rod is hinged between the clamping plates.
[0009] The connecting frame has a transmission straight groove, the sliding shaft is movably disposed inside the transmission straight groove, the sliding shaft is rotatably disposed on the sleeve, and the sleeve has docking shafts at both ends. The bottom of the limiting rod is provided with a pair of fixed rods, and the fixed rods are inserted into the docking shaft on one side. One end of the transmission pull rod is snapped into the docking shaft at the bottom. Through the linkage design of the movable sliding seat, adjustable limiting end block, limiting rod and elastic positioning pad, the multi-angle synchronous pressing and positioning of the inner and outer walls and top surface of the pump cover is realized.
[0010] Preferably, the end of the limiting rod near the limiting plate is connected to a positioning pad. The positioning pad has a circular groove inside, and a rubber pad can be engaged inside the circular groove to abut against the outer wall of the pump cover for auxiliary positioning. The positioning pad has a replaceable rubber pad inside to ensure the integrity of the contact surface of the precision workpiece.
[0011] Preferably, the top end of the transmission tube is provided with a fixing groove, and the fixing groove can be fitted with a snap-fit pad of different thickness.
[0012] Preferably, the top of the limiting plate is provided with several arc grooves, and multiple buffer pads are fixedly connected inside the arc grooves. The buffer pads are evenly distributed on the top of the limiting plate. The top of the buffer pads is used to press against the inner wall of the pump cover to assist in clamping and positioning. The evenly distributed buffer pads on the top of the limiting plate provide elastic support when pressing against the inner wall of the pump cover, reducing the impact damage to the edge of the workpiece.
[0013] Preferably, the separation disc is equipped with several snap-fit pieces on its edge, the limiting disc has a snap-fit groove, and the snap-fit pieces are installed inside the snap-fit groove. The separation disc has a circular groove inside, and a transmission plate is connected inside the circular groove. The transmission plate is frustoconical, and the bottom of the transmission plate abuts against the top of the transmission tube. An extraction tube is inserted into the snap-fit pieces for connecting to an external suction device. The extraction tube connects to the external device to discharge the filtered coolant, avoiding chip contamination of the fixture and working area, and greatly reducing the cleaning difficulty.
[0014] Preferably, a fixing ring is installed inside the separation disc, and the fixing ring has several fixing holes corresponding to the extraction tube. An elastic separation sieve plate is connected inside the fixing ring, and a snap-fit ring is connected to the inner wall of the separation sieve plate. The snap-fit ring is snapped onto the outer wall of the transmission plate.
[0015] Preferably, the separating screen plate is equipped with a plurality of intercepting plates arranged symmetrically in pairs. The intercepting plates are arc-shaped and elastic. The intercepting plates are used to block metal debris, which facilitates subsequent disassembly and cleaning. The intercepting plates can gather filamentous chips nearby to form a three-dimensional mesh filter layer, which actively intercepts and gathers metal debris.
[0016] Preferably, the sliding seat is provided with a positioning tube, a drive shaft is inserted inside the positioning tube, a conveying shaft is inserted inside the drive shaft, the limiting end block is connected to one end of the conveying shaft, and a rubber collar can be clamped on the outside of the limiting end block, and the flexible contact surface ensures the surface integrity of the precision workpiece.
[0017] Compared with the prior art, the beneficial effects of the present invention are:
[0018] 1. This invention achieves multi-angle synchronous pressing and positioning of the inner and outer walls and top surface of the pump cover through the linkage design of movable sliding seat, adjustable limit end block, limit plug rod and elastic positioning pad. The positioning pad can be replaced with rubber pads of different sizes to adapt to pump covers of different specifications, effectively prevent workpiece displacement during processing and significantly improve the hole expansion accuracy.
[0019] 2. The present invention uses a closed filtration unit composed of a separation disc and a frustum-shaped transmission plate, combined with an elastic separation sieve plate and a retaining plate structure, to separate metal chips and coolant in real time during the processing. The extraction pipe is connected to external equipment to export the filtered coolant, avoiding chip contamination of the fixture and working area, and greatly reducing the difficulty of cleaning.
[0020] 3. The present invention provides elastic support when pressing the inner wall of the pump cover by evenly distributed buffer pads on the top of the limiting plate, thereby reducing the impact damage to the edge of the workpiece. The limiting end block is equipped with a rubber collar, and the positioning pad has a built-in replaceable rubber pad. The double flexible contact surface ensures that the precision workpiece machining surface is less damaged.
[0021] 4. The present invention uses symmetrically arranged elastic interception plates on the separation screen plate to gather filamentous chips nearby, forming a three-dimensional grid filter layer, which actively intercepts and gathers metal chips. Combined with the screen plate deformation function driven by the transmission push rod, residual chips can be shaken off and retained coolant can be discharged, which facilitates the centralized cleaning and recycling of chips. Attached Figure Description
[0022] Figure 1 This is a schematic diagram of the overall structure of the present invention;
[0023] Figure 2 This is a schematic diagram of a partial structure of the positioning tube of the present invention;
[0024] Figure 3 This is a schematic diagram of the exploded disassembly structure of the positioning disk of the present invention;
[0025] Figure 4 For the present invention Figure 3 Enlarged view of a portion of point A in the middle;
[0026] Figure 5 This is a schematic diagram of the fixed seat structure of the present invention;
[0027] Figure 6 For the present invention Figure 5 Enlarged view of a portion of point B in the middle;
[0028] Figure 7 This is a schematic diagram of the exploded disassembly structure of the limiting disk of the present invention;
[0029] Figure 8 For the present invention Figure 7 Enlarged view of a portion of point C in the middle;
[0030] In the diagram: 1. Connecting base; 2. Sliding seat; 3. Positioning plate; 4. Limiting plate; 21. Positioning tube; 22. Drive shaft; 23. Conveying shaft; 24. Limiting end block; 31. Fixed seat; 32. Drive tube; 33. Welding plate; 34. Snap-fit pad; 35. Connecting frame; 36. Sliding shaft; 361. Drive rod; 37. Limiting insert rod; 371. Positioning pad; 41. Separating plate; 42. Fixing ring; 43. Extraction tube; 44. Buffer pad; 45. Snap-fit ring; 46. Separating sieve plate; 461. Retention plate; 47. Drive plate. Detailed Implementation
[0031] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.
[0032] Please see Figures 1-8 This invention provides a technical solution: a pump cover edge positioning and enlarging device, comprising,
[0033] The connecting base 1 has a positioning plate 3 on its top, and several fixing seats 31 are provided on the positioning plate 3. Several fixing holes are provided on the fixing seats 31. A limiting plate 4 is provided at the top of the fixing seats 31. A separation plate 41 for coolant separation is provided inside the limiting plate 4. A set of sliding seats 2 are provided on both sides of the positioning plate 3. An arc-shaped transmission groove is provided at the top of the connecting base 1. The sliding seats 2 are movably disposed inside the arc-shaped transmission groove. A movable limiting end block 24 is provided at the top of the sliding seat 2 for pressing and limiting against the top of the pump cover.
[0034] The positioning plate 3 is equipped with several connecting frames 35, the positions of which correspond to the gaps of the fixed base 31. A sliding shaft 36 is movably installed inside the connecting frame 35, and a limit rod 37 is provided at the top of the sliding shaft 36 to abut against the outer wall of the pump cover for auxiliary support and positioning. When the pump cover needs to be enlarged, the pump cover can be clamped on the top of the limit plate 4 and abutted against the outer wall of the pump cover with the help of the positioning pad 371 for auxiliary positioning. The positions of the drive shaft 22 and the conveying shaft 23 can be adjusted, and the limit end block 24 can abut against the top of the pump cover. The pump cover can be positioned and pressed from multiple angles to reduce the possibility of displacement during the subsequent enlargement process. During the enlargement process, coolant needs to be added with the help of external equipment to ensure that the temperature of the enlargement drill is not too high during the processing. The coolant can be conducted to the inside of the separation plate 41 along the hole to be processed to separate the metal chips from the coolant. The filtered coolant can be quickly discharged with the help of external equipment to reduce the spread of small chip particles mixed in the coolant to the entire fixture, which would increase the difficulty of subsequent cleaning.
[0035] like Figure 5 and Figure 6 As shown, a welding plate 33 is installed on the top of the positioning plate 3, a transmission push rod is installed on the top of the welding plate 33, and a transmission tube 32 is clamped on the top of the transmission push rod. Multiple clamping plates are provided on the edge of the transmission tube 32, and a transmission pull rod 361 is hinged between the clamping plates.
[0036] The connecting frame 35 has a transmission straight groove, and the sliding shaft 36 is movably disposed inside the transmission straight groove. The sliding shaft 36 is rotatably provided with a sleeve, and the two ends of the sleeve are provided with docking shafts. The bottom of the limiting rod 37 is provided with a pair of fixed rods, and the fixed rods are inserted into the docking shaft on one side. One end of the transmission pull rod 361 is engaged with the docking shaft at the bottom. The transmission push rod drives the transmission tube 32 to move, which can make the sleeve outside the sliding shaft 36 rotate under the action of the transmission pull rod 361, and press the positioning pad 371 against the edge of the pump cover for auxiliary positioning, which can reduce the displacement of the pump cover position during subsequent clamping and pressing.
[0037] like Figure 6 As shown, the end of the limiting rod 37 near the limiting plate 4 is connected to a positioning pad 371. The positioning pad 371 has a circular groove inside, and a rubber pad can be inserted into the circular groove to assist in positioning against the outer wall of the pump cover. When positioning and clamping different pump covers, the positioning pad 371 can be replaced with rubber pads of different sizes to ensure the stability of clamping.
[0038] like Figure 5 As shown, a fixing groove is provided at the top of the transmission tube 32, and a snap-fit pad 34 of different thicknesses can be inserted inside the fixing groove. With the help of the snap-fit pad 34, it can abut against the bottom of the transmission plate 47. During disassembly, the transmission tube 32 moves with the transmission push rod, which can push the transmission plate 47 at the top to move, thus playing a driving role.
[0039] like Figure 3 and Figure 4 As shown, the top of the limiting plate 4 has several arc grooves, and multiple buffer pads 44 are fixedly connected inside the arc grooves. The buffer pads 44 are evenly distributed on the top of the limiting plate 4. The top of the buffer pads 44 is used to press against the inner wall of the pump cover to assist in clamping and positioning. The pump cover can press against the top of the limiting plate 4. At this time, the buffer pads 44 evenly distributed on the limiting plate 4 can press against the inner wall of the pump cover to assist in limiting and can play a buffering role, reducing the possibility of bumping and damage to the edge of the pump cover.
[0040] like Figure 7 and Figure 8 As shown, several snap-fit pieces are installed on the edge of the separation disc 41. The limiting disc 4 has a slot, and the snap-fit pieces are installed inside the slot. The separation disc 41 has a circular groove inside, and a transmission plate 47 is connected inside the circular groove. The transmission plate 47 is truncated cone-shaped. The bottom of the transmission plate 47 abuts against the top of the transmission tube 32. An extraction tube 43 is inserted into the snap-fit pieces for connecting to an external suction device. With the help of the external suction device, the extraction tube 43 can be connected to the extraction tube 43. The extraction tube 43 can discharge the coolant filtered to the bottom, reducing the spread of coolant.
[0041] like Figure 7 and Figure 8 As shown, a fixing ring 42 is installed inside the separation disc 41. The fixing ring 42 has several fixing holes corresponding to the extraction pipe 43. An elastic separation screen plate 46 is connected inside the fixing ring 42. A snap ring 45 is connected to the inner wall of the separation screen plate 46. The snap ring 45 is snapped onto the outer wall of the transmission plate 47. The transmission pipe 32 moves with the transmission push rod and can push the transmission plate 47 at the top to move, which can cause the separation screen plate 46 to undergo a small deformation. During the movement, the coolant accumulated inside the chips is discharged, reducing the residue and facilitating subsequent unified processing.
[0042] like Figure 8As shown, a number of symmetrically arranged intercepting plates 461 are installed on the separation sieve plate 46. The intercepting plates 461 are arc-shaped and elastic. The intercepting plates 461 are used to block metal debris, which is convenient for subsequent disassembly and cleaning. With the help of the intercepting plates 461, the metal debris can be gathered to form a three-dimensional mesh filter component on the top of the separation sieve plate 46, which helps to clean small particles of debris in the coolant and reduces their mixing into the coolant.
[0043] like Figure 2 As shown, a positioning tube 21 is provided on the sliding seat 2, a drive shaft 22 is inserted inside the positioning tube 21, a conveying shaft 23 is inserted inside the drive shaft 22, a limiting end block 24 is connected to one end of the conveying shaft 23, and a rubber collar can be locked on the outside of the limiting end block 24. The drive tube 32 moves with the drive push rod, which can push the top drive plate 47 to move, which can cause the separation screen plate 46 to undergo a small deformation. During the movement, the coolant accumulated inside the chips is discharged, reducing the residue and facilitating subsequent unified processing.
[0044] Working principle: First, when the pump cover needs to be enlarged, the pump cover can be clamped on the top of the limiting plate 4, and the positioning pad 371 is used to abut against the outer wall of the pump cover for auxiliary positioning. The positions of the drive shaft 22 and the conveying shaft 23 can be adjusted, and the limiting end block 24 can be abutted against the top of the pump cover. The pump cover can be positioned and pressed from multiple angles to reduce the possibility of displacement during the subsequent enlargement process. During the enlargement process, coolant needs to be added with the help of external equipment to ensure that the temperature of the enlarger drill is not too high during the processing. The coolant can be conducted to the inside of the separation plate 41 along the hole to be processed. It can separate metal chips from coolant and quickly export the filtered coolant with the help of external equipment, reducing the spread of small chip particles mixed in the coolant to the entire fixture, which would increase the difficulty of subsequent cleaning. During the clamping process, the pump cover can abut against the top of the limiting plate 4. At this time, the buffer pads 44 evenly distributed on the limiting plate 4 can abut against the inner wall of the pump cover for auxiliary positioning. At this time, the transmission push rod drives the transmission tube 32 to move, which can make the sleeve outside the sliding shaft 36 rotate under the action of the transmission pull rod 361, and place the positioning pad 371 against the edge of the pump cover for auxiliary positioning.
[0045] Then, after the pump cover is positioned, the position of the sliding seat 2 can be adjusted according to the actual situation of the pump cover to reduce interference during the clamping process. As the drive shaft 22 and the conveying shaft 23 move, the limiting end block 24 can be pressed against the top of the pump cover. Different rubber rings can be fitted on the outside of the limiting end block 24 to reduce the impact of rigid contact on the top of the pump cover, which may cause indentations or scratches on the paint surface.
[0046] Finally, during the hole reaming process, as coolant drips into the hole to be machined, it is processed in conjunction with the reaming drill. The coolant can be guided to the separation plate 41, where it can be filtered and separated by the retaining plate 461 and the separation sieve plate 46. An external suction device can be connected to the extraction pipe 43, which can export the coolant filtered to the bottom. After the pump cover is processed, as the transmission pipe 32 moves with the transmission push rod, it can push the transmission plate 47 at the top to move, causing the separation sieve plate 46 to deform slightly. During the movement, the coolant accumulated inside the chips is exported, reducing the amount of residue and facilitating subsequent unified processing.
[0047] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A pump cover edge positioning reaming apparatus, characterized by: include, A connecting base (1) is provided with a positioning plate (3) on the top of the connecting base (1). Several fixing seats (31) are provided on the positioning plate (3). Several fixing holes are provided on the fixing seats (31). A limiting plate (4) is provided at the top of several fixing seats (31). A separation plate (41) for separating coolant is provided inside the limiting plate (4). A set of sliding seats (2) is provided on both sides of the positioning plate (3). An arc-shaped transmission groove is provided at the top of the connecting base (1). The sliding seat (2) is movably disposed inside the arc-shaped transmission groove. A movable limiting end block (24) is provided at the top of the sliding seat (2) for pressing and limiting against the top of the pump cover. The positioning plate (3) is provided with several connecting frames (35), the position of the connecting frame (35) corresponds to the gap of the fixed seat (31), the connecting frame (35) is movably provided with a sliding shaft (36), and the top of the sliding shaft (36) is provided with a limit plug (37) for abutting against the outer wall of the pump cover for auxiliary support and positioning; The positioning disk (3) is equipped with a welding disk (33) at the top, and a transmission push rod is installed at the top of the welding disk (33). A transmission tube (32) is clamped at the top of the transmission push rod. Multiple clamping plates are provided on the edge of the transmission tube (32), and a transmission pull rod (361) is hinged between the clamping plates. The connecting frame (35) is provided with a transmission straight groove, the sliding shaft (36) is movably disposed inside the transmission straight groove, the sliding shaft (36) is rotatably provided with a sleeve, and the sleeve is provided with docking shafts at both ends, the bottom of the limiting insert (37) is provided with a pair of fixed inserts, and the fixed inserts are inserted into the docking shaft on one side, and one end of the transmission pull rod (361) is snapped onto the docking shaft at the bottom; The separation disc (41) has several snap-fit pieces installed on its edge. The limiting disc (4) has a slot, and the snap-fit pieces are installed inside the slot. The separation disc (41) has a circular groove inside, and a transmission plate (47) is connected inside the circular groove. The transmission plate (47) is frustoconical. The bottom of the transmission plate (47) abuts against the top of the transmission tube (32). A suction tube (43) is inserted into the snap-fit pieces for connecting to an external suction device. The separation disc (41) is equipped with a fixing ring (42), and the fixing ring (42) has several fixing holes corresponding to the extraction tube (43). The fixing ring (42) is connected to an elastic separation sieve plate (46), and a snap ring (45) is connected to the inner wall of the separation sieve plate (46). The snap ring (45) is snapped onto the outer wall of the transmission plate (47).
2. A pump cover edge positioning reaming apparatus as defined in claim 1, wherein: The end of the limiting rod (37) near the limiting plate (4) is connected to a positioning pad (371). The positioning pad (371) has a circular groove inside, and a rubber pad can be inserted into the circular groove to assist in positioning against the outer wall of the pump cover.
3. A pump cover edge positioning reaming apparatus as defined in claim 1, wherein: The top end of the transmission tube (32) is provided with a fixing groove, and the fixing groove can be fitted with a snap-fit pad (34) of different thickness.
4. A pump cover edge positioning reaming apparatus as defined in claim 1, wherein: The top of the limiting plate (4) is provided with several arc grooves, and multiple buffer pads (44) are fixedly connected inside the arc grooves. The buffer pads (44) are evenly distributed on the top of the limiting plate (4). The top of the buffer pads (44) is used to press against the inner wall of the pump cover to assist in clamping and positioning.
5. The pump cover edge positioning and enlarging device according to claim 1, characterized in that: The separation sieve plate (46) is equipped with a number of symmetrically arranged intercepting plates (461). The intercepting plates (461) are arc-shaped and elastic. The intercepting plates (461) are used to block metal debris, which facilitates subsequent disassembly and cleaning.
6. The pump cover edge positioning and enlarging device according to claim 1, characterized in that: The sliding seat (2) is provided with a positioning tube (21), a drive shaft (22) is inserted inside the positioning tube (21), a conveying shaft (23) is inserted inside the drive shaft (22), the limiting end block (24) is connected to one end of the conveying shaft (23), and a rubber collar can be clamped on the outside of the limiting end block (24).