A machining and fixing tool for a pump body of a water pump

Abstract

The utility model discloses a kind of pump body machining fixed tool of water pump, tool base is slidably provided with pressure assembly at every group of positioning protrusion, pressure assembly includes slide base and pressure bolt, synchronous drive assembly is equipped in tool base, which drives multiple slide bases to slide towards pump body or away from pump body simultaneously;Driving assembly includes bidirectional screw rod, driving rod, first bevel gear, second bevel gear and matching bevel gear, every two groups of slide bases are symmetrically arranged at the two sides of a group of bidirectional screw rod and form thread connection, bidirectional screw rod is rotatably arranged in tool base, matching bevel gear is arranged at the same end of two groups of bidirectional screw rod, driving rod is rotatably arranged in working base and is coaxially fixedly connected with first bevel gear and second bevel gear respectively, first bevel gear and second bevel gear are respectively engaged with a group of matching bevel gear, the utility model can quickly press and position pump body by setting bidirectional screw rod and driving assembly, improve pump body processing efficiency.

Description

Technical Field

[0001] This utility model relates to a pump body fixing device, specifically a pump body machining and fixing fixture for a water pump. Background Technology

[0002] A pump is a machine that transports or pressurizes fluids. The pump body has a cavity that houses the impeller and shaft. When assembling the pump body, drilling is required at the connecting surfaces. Existing fixing equipment usually places the pump body on a tooling base plate, then fixes the four corners of the pump body with multiple sets of clamps, and finally fixes the tooling on the machine tool operating table for processing. Each time the pump body is disassembled and assembled, multiple positions need to be unlocked and locked one by one, which is inefficient. Utility Model Content

[0003] The purpose of this utility model is to provide a pump body machining and fixing fixture for a water pump, so as to solve the above-mentioned technical problems.

[0004] To achieve the above objectives, the present invention provides the following technical solution: a pump body processing and fixing fixture for a water pump, including a fixture base, with positioning protrusions at the four corners of the top of the fixture base, and a clamping assembly slidably provided at each of the positioning protrusions on the fixture base, the clamping assembly including a slide block and a clamping bolt, and a synchronous drive assembly for driving multiple sets of slide blocks to slide simultaneously toward the side closer to the pump body or away from the pump body is provided inside the fixture base; The drive assembly includes a bidirectional lead screw, a drive rod, a first bevel gear, a second bevel gear, and a mating bevel gear. Two sets of slides are symmetrically arranged on both sides of a set of bidirectional lead screws and are threadedly connected to the bidirectional lead screws respectively. The bidirectional lead screws are rotatably mounted in the tooling base. The mating bevel gears are located at the same end of the two sets of bidirectional lead screws. The drive rods are rotatably mounted in the working base and are coaxially fixedly connected to the first bevel gear and the second bevel gear respectively. The first bevel gear and the second bevel gear are respectively meshed with a set of mating bevel gears.

[0005] Preferably, the tooling base is provided with a sliding groove on the outer side of each set of positioning protrusions for sliding connection of the slide block, and the bidirectional lead screw passes through the sliding groove and is threadedly connected to the bidirectional lead screw.

[0006] Preferably, the top of the slide block extends towards the fixed position of the pump body, and a quick positioning block is slidably provided inside the extension block. The bolt is threadedly connected to the quick positioning block, and the slide block is provided with a linkage component that drives the quick positioning block to move to contact the pump body base.

[0007] Preferably, the upper extension block is provided with a slider groove for the quick positioning block to slide up and down. The linkage includes a U-shaped rod, which includes a pull rod, a stop rod, and a connecting rod. The slide block is provided with a U-shaped groove for the U-shaped rod to slide horizontally. The quick positioning block is provided with a slot for the end of the pull rod to be inserted into the U-shaped groove. The bottom of the slot is provided with a stop groove, and the inner wall of the stop groove is provided with an inclined surface. The end of the pull rod located in the slot is provided with a stop rod that abuts against the inclined surface. In the initial state, one end of the stop rod is located outside the U-shaped groove and abuts against the side wall of the pump body base. The upper end of the connecting rod is fixedly connected to the end of the pull rod away from the quick positioning block, and the bottom end is fixedly connected to the end of the stop rod located in the U-shaped groove. The U-shaped groove is provided with a reset component for driving the U-shaped rod to slide outward.

[0008] Preferably, the reset component is a spring, one end of which is fixed to the inner wall of the U-shaped groove, and the other end abuts against the connecting rod.

[0009] Preferably, the quick positioning block is provided with a screw hole for the threaded connection of the clamping bolt, and a pressure plate is provided at the bottom of the bolt. The bottom of the screw hole is provided with a pressure plate groove for the pressure plate to be inserted.

[0010] Preferably, the end of the drive rod extending outside the tooling base is provided with a handle.

[0011] Compared with the prior art, the beneficial effects of this utility model are as follows: By setting up a bidirectional lead screw, drive rod, first bevel gear, second bevel gear and drive assembly structure with matching bevel gear to drive multiple sets of slides to slide simultaneously toward the side closer to or away from the pump body, all slides can be quickly moved to the positioning position of the pump body. By sliding a U-shaped rod consisting of a pull rod, a stop rod, and a connecting rod inside the slide block, and by having the clamping bolt slide up and down on the front extension block via the quick positioning block, when the drive assembly drives all the slide blocks to slide toward the pump body, the stop rod abuts against the pump body base, thereby driving the bottom end of the quick positioning block to quickly press against the upper end face of the pump body base. This reduces the downward stroke of the clamping bolt and improves the fixing efficiency of the pump body. Attached Figure Description

[0012] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0013] Figure 1 This is a schematic diagram of the structure of the tooling with the pump body fixed on the machine tool operating table, which highlights the structure of this embodiment. Figure 2 This is a schematic diagram of the overall structure of the fixed tooling in this embodiment; Figure 3 This is a cross-sectional view of the interior of the slide in this embodiment; Figure 4 This is a cross-sectional schematic diagram highlighting the driving component in this embodiment.

[0014] The attached diagram lists the components represented by each number as follows: 1. Tooling base; 2. Positioning protrusion; 3. Clamping assembly; 31. Slide; 32. Clamping bolt; 4. Synchronous drive assembly; 41. Two-way lead screw; 42. Drive rod; 43. First bevel gear; 44. Second bevel gear; 45. Matching bevel gear; 5. Slide groove; 6. Upper extension block; 7. Quick positioning block; 8. Slide groove; 9. U-shaped rod; 91. Pull rod; 92. Abutment rod; 93. Connecting rod; 10. U-shaped slide groove; 11. Slot; 12. Abutment groove; 13. Inclined surface; 14. Abutment rod; 15. Spring; 16. Screw hole; 17. Pressure plate; 18. Pressure plate groove; 19. Handle; 20. Pump body; 21. Lifting inclined surface. Detailed Implementation

[0015] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.

[0016] Please see Figure 1-4 This utility model discloses a pump body processing and fixing fixture for a water pump, which aims to solve the problem of low efficiency caused by the need to operate multiple sets of clamps one by one when assembling and disassembling existing pump body 20 fixing equipment. Its overall structure takes the fixture base 1 as the installation foundation, and the pump body 20 is initially positioned by the positioning protrusion 2. The synchronous drive component 4 drives multiple sets of clamping components 3 to move synchronously, and the linkage component is used to achieve rapid positioning. Finally, the pump body 20 is firmly fixed by the clamping bolt 32. The components are closely connected and move in coordination. The specific structure and cooperation relationship are detailed below.

[0017] The tooling base 1 serves as the supporting foundation for the entire tooling. It has positioning protrusions 2 integrally formed at the four corners of its top. The bottom of the pump body base is provided with mounting holes (for installation with other equipment). After each set of positioning protrusions 2 is inserted into the mounting hole of the pump body 20, the initial positioning is achieved, ensuring the accuracy of the initial placement position of the pump body 20. At the same time, the tooling base 1 has a sliding groove 5 extending along the direction of the fixed position of the pump body 20 on the outer side of each set of positioning protrusions 2. The groove structure of the sliding groove 5 is adapted to the sliding seat 31 in the subsequent clamping assembly 3, providing a guiding function for the sliding of the sliding seat 31. Each of the two positioning protrusions is equipped with a corresponding clamping assembly 3. The core components of the clamping assembly 3 are a slide block 31 and a clamping bolt 32. The slide block 31 is slidably connected in the slide groove 5, and the top of the slide block 31 extends integrally with an upper extension block 6 towards the fixed position of the pump body 20. The upper extension block 6 has a vertically penetrating slider groove 8 inside, and a quick positioning block 7 is slidably embedded in the slider groove 8. The quick positioning block 7 can move up and down along the vertical direction of the slider groove 8. A vertically penetrating screw hole 16 is opened at the center of the quick positioning block 7, and the clamping bolt 32... The screw is threaded into the screw hole 16, and the bottom end of the clamping bolt 32 is rotatably connected to the pressure plate 17 via a bearing. At the same time, the bottom of the screw hole 16 is provided with a pressure plate groove 18 that matches the size of the pressure plate 17. When the clamping bolt 32 is not tightened, the pressure plate 17 can be completely hidden in the pressure plate groove 18, avoiding interference of the pressure plate 17 with the movement of the quick positioning block 7. In addition, the depth of the pressure plate groove 18 is preferably equal to the thickness of the pressure plate 17. When the quick positioning block is pressed against the top end face of the pump body base, the pressure plate 17 can be pressed against the pump body simply by turning the clamping bolt 32.

[0018] The tooling base 1 is also equipped with a synchronous drive assembly 4 for driving the four sets of slides 31 to move synchronously closer to or further away from the pump body 20. This drive assembly consists of a bidirectional lead screw 41, a drive rod 42, a first bevel gear 43, a second bevel gear 44, and a mating bevel gear 45. There are two sets of bidirectional lead screws 41 arranged in parallel, and each set of bidirectional lead screws 41 is rotatably mounted inside the tooling base 1 via bearings. The rod part of the bidirectional lead screw 41 passes through the corresponding slide groove 5. The two sets of slides 31 in the slide groove 5 are symmetrically distributed on both sides of the bidirectional lead screw 41, and both sets of slides 31 are threadedly connected to the bidirectional lead screw 41. Since the threads on both sides of the bidirectional lead screw 41 turn in opposite directions, when the bidirectional lead screw 41 rotates, the slides 31 on both sides can move synchronously towards or away from each other along the slide groove 5. Each set of bidirectional lead screws 41 has a mating bevel gear 45 fixedly fitted at both ends, and the mating bevel gears 45 at the same end of the two sets of bidirectional lead screws 41 are at the same horizontal height. Inside the tooling base 1, a drive rod 42 is rotatably mounted via bearings. A first bevel gear 43 and a second bevel gear 44 are spaced apart along the axial direction on the rod body of the drive rod 42, and the first bevel gear 43 and the second bevel gear 44 are coaxially fixedly connected to the drive rod 42. The first bevel gear 43 meshes with the mating bevel gear 45 at the end of one set of bidirectional lead screws 41, and the second bevel gear 44 meshes with the mating bevel gear 45 at the end of the other set of bidirectional lead screws 41. At the same time, one end of the drive rod 42 extends to the outside of the tooling base 1, and a handle 19 is fixedly installed at this end to facilitate the operator to apply force. By rotating the handle 19, the drive rod 42 can be driven to rotate synchronously, and then the two sets of bidirectional lead screws 41 can be driven to rotate synchronously through the meshing transmission of the bevel gears.

[0019] To enable the automatic downward positioning of the quick positioning block 7, a linkage component is also installed inside the slide block 31. This linkage component is a U-shaped rod 9 structure. The U-shaped rod 9 is integrally formed by the pull rod 91, the stop rod 92 and the connecting rod 93. The connecting rod 93 is in the vertical direction, and the pull rod 91 and the stop rod 92 are located at the upper and lower ends of the connecting rod 93 respectively and extend horizontally in opposite directions to form a "U" shape. The slide block 31 has a U-shaped groove 10 inside that matches the shape of the U-shaped rod 9. The U-shaped rod 9 is slidably fitted into the U-shaped groove 10 and can slide back and forth along the horizontal direction of the U-shaped groove 10. The quick positioning block 7 has a horizontally extending slot 11 on the side near the U-shaped groove 10. The end of the pull rod 91 away from the connecting rod 93 can be inserted into the slot 11. The bottom of the inner end of the slot 11 has an upwardly inclined abutment groove 12. The inner wall of the abutment groove 12 is machined with a bevel 13. The end of the pull rod 91 inserted into the slot 11 is fixedly installed with an abutment rod 14 that matches the bevel 13. The abutment rod 14 can form an abutment fit with the bevel 13. The end of the abutment rod 92 away from the connecting rod 93 extends out of the U-shaped groove 10 in the initial state, and the end face of this end can abut against the side wall of the pump body 20 base. A reset component is also installed between the middle position of the connecting rod 93 and the inner wall of the U-shaped groove 10. The reset component is a spring 15. One end of the spring 15 is fixed to the inner wall of the U-shaped groove 10 by welding or bolting, and the other end abuts against the side wall of the connecting rod 93. Under the elastic force of the spring 15, the U-shaped rod 9 always has a tendency to slide out of the U-shaped groove 10, ensuring that the abutment rod 92 can remain extended in the initial state. When the drive assembly 4 drives the slide block 31 to slide towards one end of the pump body, the abutment rod 92 can drive the quick positioning block 7 to slide and press the top end face of the pump body base by abutting against the side wall of the pump body base, realizing the synchronous pressing of the side and top end face of the pump body 20.

[0020] In actual use, the pump body 20 to be processed is first placed on the top of the fixture base 1, so that the mounting holes at the four corners of the pump body 20 are respectively engaged with the corresponding positioning protrusions 2 to complete the initial positioning; then the operator rotates the handle 19 at the end of the drive rod 42, and the handle 19 drives the drive rod 42 to rotate within the fixture base 1. Since the drive rod 42 is coaxially fixed with the first bevel gear 43 and the second bevel gear 44, the first bevel gear 43 and the second bevel gear 44 rotate synchronously with the drive rod 42, and then drive the ends of the two sets of bidirectional lead screws 41 through meshing transmission. When the bevel gear 45 of the part rotates, the two sets of double-acting screws 41 rotate synchronously. When the double-acting screws 41 rotate, the sliding blocks 31 connected by threads on both sides slide synchronously towards the pump body 20 under the guidance of the sliding groove 5. When the sliding blocks 31 move to a certain distance, the abutment rod 92 first abuts against the side wall of the pump body 20 base. The quick positioning block 7 is provided with a lifting inclined surface 21 on the side near the pump body fixed position. The lifting inclined surface 21 is initially exposed below the upper extension block 6. When the sliding block 31 slides towards the pump body 20, the lifting inclined surface 21 will contact the bottom of the pump body. The side walls of the seat abut against each other and move upward; continue to rotate the handle 19 to make the slide 31 move closer to the pump body 20. The push rod 92 is squeezed by the pump body 20 and moves towards one end of the U-shaped groove 10. At the same time, through the abutting rod 14 abutting against the inclined surface 13 of the abutting groove 12, it drives the quick positioning block 7 to move down to the position of pressing the pump body base, realizing the synchronous pressing of the side and top surfaces of the pump body, and completing the quick positioning; finally, the operator only needs to tighten the clamping bolt 32, so that the pressure plate 17 at the bottom of the clamping bolt 32 extends out of the pressure plate groove 18 and presses tightly against the upper end surface of the pump body base, that is The pump body 20 can be fixed by quickly positioning the pump body base. When the pump body 20 needs to be disassembled, the handle 19 is rotated in the opposite direction. The double-acting screw 41 drives the slide 31 away from the pump body 20, and the abutment rod 92 is released from the abutment state with the pump body base. The U-shaped rod 9 is reset under the elastic force of the spring 15. After the quick positioning block 7 loses the thrust of the abutment rod 14, it can move upward by its own weight or manual operation. Then, the clamping bolt 32 can be loosened to remove the pump body 20. The whole process does not require operating multiple sets of clamps one by one, which greatly improves the efficiency of disassembling and assembling the pump body 20.

[0021] In the description of this utility model, it should be understood that the terms "coaxial", "bottom", "one end", "top", "middle", "other end", "upper", "side", "top", "inner", "front", "center", "both ends", etc., indicate the orientation or positional relationship based on the drawings, and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0022] In this utility model, unless otherwise explicitly specified and limited, the terms "installation", "setting", "connection", "fixing", "screw connection", etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal connection of two components or the interaction between two components. Unless otherwise explicitly limited, those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0023] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that modifications may be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A fixture for machining and fixing the pump body of a water pump, comprising a fixture base (1), characterized in that: The tooling base (1) has positioning protrusions (2) at the four corners of the top. The tooling base (1) is slidably provided with clamping components (3) at each of the positioning protrusions (2). The clamping components (3) include slides (31) and clamping bolts (32). The tooling base (1) is provided with a synchronous drive component (4) that drives multiple sets of slides (31) to slide simultaneously toward the side closer to the pump body (20) or away from the pump body (20). The drive assembly includes a bidirectional lead screw (41), a drive rod (42), a first bevel gear (43), a second bevel gear (44), and a mating bevel gear (45). Two sets of slides (31) are symmetrically arranged on both sides of a set of bidirectional lead screws (41) and are threadedly connected to the bidirectional lead screws (41) respectively. The bidirectional lead screws (41) are rotatably arranged in the tooling base (1). The mating bevel gears (45) are arranged at the same end of the two sets of bidirectional lead screws (41). The drive rod (42) is rotatably arranged in the working base and is coaxially fixedly connected to the first bevel gear (43) and the second bevel gear (44) respectively. The first bevel gear (43) and the second bevel gear (44) are respectively meshed with a set of mating bevel gears (45).

2. The pump body machining and fixing fixture for a water pump according to claim 1, characterized in that: The tooling base (1) is provided with a sliding groove (5) on the outside of each set of positioning protrusions (2) for sliding connection of the slide block (31). The bidirectional lead screw (41) passes through the sliding groove (5) and is threadedly connected to the bidirectional lead screw (41).

3. The machining fixture for a pump body of a water pump according to claim 1, characterized in that: The top of the slide block (31) extends toward the fixed position of the pump body (20) with an upper extension block (6). A quick positioning block (7) is provided inside the extension block and slides up and down. The bolt is threadedly connected to the quick positioning block (7). The slide block (31) is provided with a linkage component that drives the quick positioning block (7) to move to contact the base of the pump body (20).

4. The pump body machining and fixing fixture for a water pump according to claim 3, characterized in that: The upper extension block (6) is provided with a slider groove (8) for the quick positioning block (7) to slide up and down. The linkage includes a U-shaped rod (9), which includes a pull rod (91), a stop rod (92), and a connecting rod (93). The slide block (31) is provided with a U-shaped groove (10) for the U-shaped rod (9) to slide horizontally. The quick positioning block (7) is provided with a slot (11) for the end of the pull rod (91) to be inserted on the side near the U-shaped groove (10). The bottom of the slot (11) is provided with a stop groove (12). 2) An inclined surface (13) is provided on the inner wall. One end of the pull rod (91) located in the slot (11) is provided with an abutment rod (14) that abuts against the inclined surface (13). In the initial state, one end of the abutment rod (92) is located outside the U-shaped groove and abuts against the side wall of the pump body (20) base. The upper end of the connecting rod (93) is fixedly connected to the end of the pull rod (91) away from the quick positioning block (7), and the lower end is fixedly connected to the end of the abutment rod (92) located in the U-shaped groove. A reset component is provided in the U-shaped groove to drive the U-shaped rod (9) to slide outward.

5. The machining fixture for a pump body of a water pump according to claim 4, characterized in that: The reset component is a spring (15), one end of which is fixed to the inner wall of the U-shaped groove, and the other end abuts against the connecting rod (93).

6. The pump body machining and fixing fixture for a water pump according to claim 3, characterized in that: The quick positioning block (7) is provided with a screw hole (16) for the threaded connection of the clamping bolt (32), and a pressure plate (17) is provided at the bottom of the bolt. A pressure plate groove (18) is provided at the bottom of the screw hole (16) for the pressure plate (17) to be inserted.

7. The pump body machining and fixing fixture for a water pump according to claim 1, characterized in that: The drive rod (42) has a handle (19) at one end extending outside the tooling base (1).

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