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

Abstract

The utility model discloses a pump cover processing fixing frock of water pump, including base, the four corners of base top are fixed with the fixed unit of pump cover angle end respectively, and the fixed unit includes support column, first side block and second side block, and the top of first side block and second side block is higher than the top of support column, and the part of first side block and second side block higher than support column forms 90 degree enclosure, and the extension line of 90 degree enclosure of the four corner position of base top can form frame type structure, and be equipped with pump cover adjusting bolt on part first side block and second side block, the fixing frock of the utility model can be convenient for pump cover quick putting in and carries out quick position adjustment, and the fixation is reliable.

Description

Technical Field

[0001] This utility model relates to a pump body fixing device, specifically a pump cover 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 connection surfaces. However, since the pump cover is not a standard workpiece and there are precise requirements for the machining position, it is not suitable to use a chuck for fixing. Therefore, it is necessary to design a reliable and convenient fixing fixture. Utility Model Content

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

[0004] To achieve the above objectives, this utility model provides the following technical solution: a pump cover processing and fixing fixture for a water pump, including a base, wherein fixing parts for the corner ends of the pump cover are respectively fixed at the four corners of the top of the base, and the fixing parts include a support column, a first side block and a second side block, wherein the top of the first side block and the second side block are higher than the top of the support column, and the parts of the first side block and the second side block that are higher than the support column form a 90° enclosure, and the extension lines of the 90° enclosure at the four corners of the top of the base can form a frame structure, and pump cover adjusting bolts are provided on some of the first side block and the second side block.

[0005] Preferably, the adjusting bolts are provided in four sets. Two sets of adjusting bolts are arranged in parallel and abut against the pump cover to adjust the lateral position of the pump cover. The other two sets of adjusting bolts are arranged in parallel and abut against the pump cover to adjust the vertical position of the pump cover.

[0006] Preferably, the top of the support column is provided with a support pad.

[0007] Preferably, a positioning shaft is provided on the 90° enclosure for setting the position of the adjusting bolt.

[0008] Preferably, it also includes two guide rods symmetrically arranged on the top of the base, and the guide rods are provided with pressure blocks for pressing the sides of the pump cover, and the top of the guide rods are threaded with nuts for locking the pressure blocks.

[0009] Preferably, a balance column is provided on the top of the base on the side of each set of guide rods away from the pump cover fixing position.

[0010] Preferably, the balance column includes a base column, a balance disc, and a sliding rod. The base column is fixed to the base, the sliding rod is slidably mounted on the base column and its top is fixedly connected to the balance disc, and the base column is provided with a self-locking balance component for locking the sliding rod.

[0011] Preferably, the sliding rod has a sliding plate at one end inside the base column, and the base column has a groove for the sliding plate to slide up and down. The self-locking balance component includes a long rod, a locking plate, and a spring. The locking plate is slidably disposed in the groove and located below the sliding plate. Two sets of springs are symmetrically disposed and fixed to the bottom of the groove. The top of the spring is fixedly connected to the bottom end face of the locking plate. The long rod is symmetrically disposed on both sides inside the sliding rod and forms a sliding connection with the sliding rod. A limiting component is provided between the top of the long rod and the balance plate, and a ball is provided at the bottom. The bottom of the long rod is hinged to the locking plate through the ball.

[0012] Preferably, the sliding column is provided with a long rod groove for sliding the long rod, the top of the balance disc is provided with a notch communicating with the long rod groove, the bottom of the pressure block is provided with a notch for pressing into the notch, the limiting member is a limiting plate, and the inner wall of the long rod groove is provided with a limiting groove for the limiting plate to slide up and down.

[0013] Compared with the prior art, the beneficial effects of this utility model are as follows: By setting support columns at the four corners of the base to support the four corners of the pump cover, each set of support columns is equipped with a first side block and a second side block that can form a 90° enclosure. A total of four sets of adjusting bolts are set on the multiple sets of 90° enclosures. Two sets of adjusting bolts are set in parallel and abut against the pump cover to adjust the lateral position of the pump cover. The other two sets of adjusting bolts are set in parallel and abut against the pump cover to adjust the vertical position of the pump cover. The lateral and vertical positions of the pump cover can be adjusted by rotating the bolts. After the lateral and vertical positions of the pump cover are adjusted, it is fixed in the 90° enclosure at the four corners. Guide rods are installed on both sides of the top of the base, and pressure blocks for pressing the pump cover are slidably installed on the guide rods to strengthen the fixation of the pump cover and improve the drilling accuracy. By setting up a balance column consisting of a base column, a balance disc, and a sliding rod, the other end of the pressure block can be prevented from being suspended after one side of the pressure block is pressed against the pump cover, thus achieving a balancing effect. By setting a self-locking balancing component consisting of a long rod, a locking plate, and a spring, the bottom of the pressure block is provided with a stop bar that abuts against the top of the long rod. After the pump cover is pressed tightly at one end of the pressure block, the locking plate will self-lock and cannot move, so that the balance disc matches the height at which the pressure block presses the pump cover. Attached Figure Description

[0014] 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.

[0015] Figure 1 This is a schematic diagram of the structure of the tooling with the pump cover fixed on it located on the machine tool operating table in this embodiment; Figure 2 This is a schematic diagram highlighting the overall structure of the fixed tooling in this embodiment; Figure 3 This is an exploded schematic diagram highlighting the balance column and the pressure block in this embodiment; Figure 4 This is a cross-sectional view of the interior of the balance column in this embodiment.

[0016] The attached diagram lists the components represented by each number as follows: 1. Base; 2. Fixing part; 21. Support column; 22. First side block; 23. Second side block; 3. 90° enclosure; 4. Adjusting bolt; 5. Support pad; 6. Positioning shaft; 7. Guide rod; 8. Pressure block; 9. Nut; 10. Balance column; 101. Base column; 102. Balance disc; 103. Slide rod; 11. Self-locking balance component; 111. Long rod; 112. Locking plate; 113. Spring; 12. Slide plate; 13. Plate groove; 14. Ball; 15. Long rod groove; 16. Butt; 17. Butt rod; 18. Limiting plate; 19. Limiting groove; 20. Pump cover. Detailed Implementation

[0017] 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.

[0018] Please see Figure 1-4 This utility model discloses a pump cover 20 processing and fixing fixture. Its core is to use the base 1 as the overall support foundation, and use the fixing parts 2 at the four corners to achieve precise positioning and adjustment of the pump cover 20. The fixing effect is further enhanced by the guide rods 7 on both sides and the pressure block 8. The balance column 10 and the self-locking balance part 11 ensure that the pressure block 8 is balanced by force, and finally meet the stability and accuracy requirements of the pump cover 20 processing. The connection relationship, position relationship and overall working principle of each component are described in detail below.

[0019] The base 1 serves as the load-bearing base for the entire tooling. Its material can be a high-strength and stable metal (such as cast iron or alloy steel) to ensure that the pump cover 20 will not deform or shift during processing. At the four corners of the top of the base 1, a set of fixing parts 2 for limiting and supporting the corners of the pump cover 20 is fixed. Each fixing part 2 consists of a support column 21, a first side block 22, and a second side block 23. The support column 21 is vertically fixed to the top surface of the corresponding corner of the base 1 (the bottom of the support column 21 has a mounting plate, which is fixed to the base 1 by bolts). The first side block 22 and the second side block 23 are respectively fixed to the adjacent sides of the support column 21. The top height of 23 is higher than the top height of support column 21, and the parts of the two that are higher than support column 21 are perpendicular to each other, forming a 90° enclosure 3. The extension lines of the 90° enclosure 3 of the four corner fixing parts 2 extending towards the center of the base 1 can enclose and form a frame structure that matches the shape of the pump cover 20. The four corners of the pump cover 20 can be placed on the top of the four sets of support columns 21 respectively, and the adjacent sides of the pump cover 20 are respectively attached to the inner wall of the corresponding 90° enclosure 3, thus initially realizing the limiting of the pump cover 20.

[0020] To achieve precise adjustment of the processing position of the pump cover 20, pump cover 20 adjusting bolts 4 are provided on some of the first side blocks 22 and the second side blocks 23. There are four sets of adjusting bolts 4. Two sets of adjusting bolts 4 are arranged in parallel on the two sets of first side blocks 22. By rotating these two sets of adjusting bolts 4, the pump cover 20 can be moved laterally and fit against the first side block 22 on the opposite side. The other two sets of adjusting bolts 4 are arranged in parallel on the second side blocks 23 of the other two 90° enclosures 3. Their axial directions are consistent and perpendicular to the vertical side of the pump cover 20. When these two sets of adjusting bolts 4 are turned, their ends abut against the vertical side of the pump cover 20, which can push the pump cover 20 to move in the vertical direction, thereby adjusting the vertical position of the pump cover 20. After the position of the pump cover 20 is adjusted to the processing requirements, the four sets of adjusting bolts 4 together form a tight stop and limit on the pump cover 20.

[0021] A support pad 5 is also fixed on the top of the support column 21. The support pad 5 is made of a material with certain elasticity and wear resistance (such as rubber or wear-resistant plastic). Its top surface is in direct contact with the bottom end face of the pump cover 20. On the one hand, it can avoid hard contact between the support column 21 and the pump cover 20, which would cause scratches on the surface of the pump cover 20. On the other hand, it can adapt to the slight unevenness of the bottom of the pump cover 20 through its own elastic deformation, so that the pump cover 20 is placed more stably. At the same time, a positioning shaft 6 is also fixed on the inner wall of the 90° enclosure 3 without the adjustment bolt 4. The axis of the positioning shaft 6 is perpendicular to the inner wall of the corresponding enclosure, and its height is matched with the height of the end of the adjustment bolt 4. When the pump cover 20 is adjusted in position under the action of the adjustment bolt 4, the end of the positioning shaft 6 can fit against the side of the pump cover 20, which helps to limit the movement direction of the pump cover 20 and further improves the accuracy of the pump cover 20 position adjustment.

[0022] To further enhance the fixing effect of the pump cover 20, the tooling also includes two guide rods 7 symmetrically arranged on the top of the base 1. The two guide rods 7 are located on both sides of the aforementioned frame structure and are vertically fixed to the top surface of the base 1. Each guide rod 7 is fitted with a pressure block 8 that can slide up and down along the guide rod 7. The middle of the pressure block 8 is provided with a strip groove adapted to the guide rod 7. Through the strip groove, it can form both relative height and horizontal sliding with the guide rod 7, avoiding interference with the fixing of the pump cover 20. One end of the pressure block 8 extends to the side of the pump cover 20. The guide rod 7 has an external thread at one end and a nut 9 for locking the pressure block 8 at the other end. After the pump cover 20 is adjusted to the correct position, the pressure block 8 is slid down so that the bottom of the end of the pressure block 8 extending above the pump cover 20 presses against the top surface of the pump cover 20. Then, the nut 9 at the top of the guide rod 7 is tightened, and the bottom of the nut 9 abuts against the top surface of the pressure block 8, fixing the pressure block 8 on the guide rod 7. This applies downward pressure to the pump cover 20 through the pressure block 8, preventing the pump cover 20 from tilting upward during processing.

[0023] Considering that when the pressure block 8 presses against the pump cover 20, the end of it away from the pump cover 20 will be suspended, which may cause uneven force on the pressure block 8 and tilting, affecting the pressing effect, a balance column 10 is provided on the top of the base 1 on the side of each set of guide rods 7 away from the fixed position of the pump cover 20. The balance column 10 includes a base column 101, a balance disk 102 and a slide rod 103. The base column 101 is vertically fixed to the top surface of the base 1. The top of the slide rod 103 is fixedly connected to the bottom center of the balance disk 102. The top surface of the balance disk 102 corresponds to the bottom surface of the end of the pressure block 8 away from the pump cover 20. When the pressure block 8 slides down, its suspended end can rest on the top surface of the balance disk 102, and the balance disk 102 supports the pressure block 8 to prevent the pressure block 8 from tilting.

[0024] To achieve automatic height adaptation and locking of the balance disc 102, a self-locking balancing component 11 is also provided inside the base column 101. Specifically, one end of the slide rod 103 located inside the base column 101 is fixed with a sliding plate 12 that matches the plate groove 13. The sliding plate 12 is non-circular, and its edge is embedded in the plate groove 13, allowing it to slide up and down along the plate groove 13. Through the cooperation between the sliding plate 12 and the plate groove 13, the rotation of the slide rod 103 is restricted, ensuring that the slide rod 103 can only move axially along the base column 101. The self-locking balancing component 11 includes a long rod. 111. Locking plate 112 and spring 113. Locking plate 112 is set in the plate groove 13 and located directly below the slide plate 12, and can slide up and down along the plate groove 13. Two sets of springs 113 are symmetrically arranged at the bottom of the plate groove 13. The bottom end of spring 113 is fixedly connected to the bottom of the plate groove 13, and the top end of spring 113 is fixedly connected to the bottom end face of locking plate 112. When spring 113 is naturally extended, the top surface of locking plate 112 abuts against the bottom surface of slide plate 12. At this time, slide rod 103 and balance disc 102 are at the highest position.

[0025] Two long rods 111 are symmetrically arranged, both located inside the slide rod 103. The slide rod 103 has an axially extending groove 15 inside. The two long rods 111 are respectively inserted into the two grooves 15, forming a sliding connection with the slide rod 103. A limiting member, a limiting plate 18, is fixed at the top of each long rod 111. The inner wall of the long rod groove 15 has an axially extending limiting groove 19. The edge of the limiting plate 18 is embedded in the limiting groove 19 and can slide along the limiting groove 19. The sliding rod 17 is longer than the depth of the abutment hole 16. The main purpose of the sliding rod 103 is to limit the swing of the two sets of long rods 111. Through the cooperation of the limiting plate 18 and the limiting groove 19, the long rod 111 is prevented from coming out of the long rod groove 15. A ball 14 is provided at the bottom end of the long rod 111. The top surface of the locking plate 112 is provided with a ball socket that matches the ball 14. The ball 14 at the bottom end of the long rod 111 is embedded in the ball socket of the locking plate 112, so that the long rod 111 and the locking plate 112 form a hinged connection. In addition, a stop 16 (there are two sets of stop 16) is provided at the top of the balance plate 102 and communicates with the long rod groove 15. Two sets of abutment rods 17 are fixed at the bottom of the pressure block 8 corresponding to the position of the stop 16. When one end of the pressure block 8 presses against the pump cover 20 and continues to move down, the pressure block will generate a turning force due to the continued downward movement of the pressure block, so that the two sets of abutment rods 17 cannot simultaneously squeeze the two sets of long rods 111 and move down at the same time. Under the action of the two sets of springs, the locking plate 112 will generate a turning force and will not be able to continue to move down in the plate groove, thus achieving self-locking. In this way, the pressure block 8 can be prevented from moving down after pressing against the pump cover 20 at one end, ensuring that the pressure block 8 remains horizontal and stably presses against the pump cover 20. The diameter of the stop 16 is larger than the diameter of the abutment rod 17.

[0026] When using this tooling in practice, first place the pump cover 20 to be processed on the support pads 5 of the four corner fixing parts 2 of the base 1, so that the four corners of the pump cover 20 are respectively located within the four sets of 90° enclosures 3, and initially limited by the enclosures; then rotate the four sets of adjusting bolts 4 to abut against the pump cover 20, and cooperate with the positioning shaft 6 to achieve tight fixing of the pump cover 20 at each position, limiting the displacement of the pump cover 20; then slide the pressure blocks 8 on the guide rods 7 on both sides downward, so that one end of the pressure block 8 presses against the top side of the pump cover 20, and at the same time, the abutment rod 17 at the other end of the pressure block 8 inserts into the abutment 16 of the balance plate 102 and pushes the long rod 111 down. After one end of the pressure block 8 presses against the pump cover 20, the other end will also be limited by the action of the self-locking balance part 11, thereby completing the fixing of the pump cover 20. Through the coordinated operation of multiple components, the entire tooling achieves precise positioning of the pump cover 20 and ensures stable fixation, effectively solving the problems of difficult fixation and low precision when processing non-standard pump covers 20, and improving the efficiency and quality of pump cover 20 processing.

[0027] 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.

[0028] 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.

[0029] 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 tooling for machining and fixing the pump cover of a water pump, comprising a base (1), characterized in that: The four corners of the top of the base (1) are respectively fixed with the corner fixing part (2) of the pump cover (20). The fixing part (2) includes a support column (21), a first side block (22) and a second side block (23). The top of the first side block (22) and the second side block (23) are higher than the top of the support column (21). The part of the first side block (22) and the second side block (23) higher than the support column (21) forms a 90° enclosure (3). The extension line of the 90° enclosure (3) at the four corners of the top of the base (1) can form a frame structure. Some of the first side block (22) and the second side block (23) are provided with pump cover (20) adjusting bolts (4).

2. The pump cover machining and fixing fixture for a water pump according to claim 1, characterized in that: The adjusting bolts (4) are provided in four sets. Two sets of adjusting bolts (4) are arranged in parallel and abut against the pump cover (20) to adjust the lateral position of the pump cover (20). The other two sets of adjusting bolts (4) are arranged in parallel and abut against the pump cover (20) to adjust the vertical position of the pump cover (20).

3. The pump cover machining and fixing fixture for a water pump according to claim 1, characterized in that: The top of the support column (21) is provided with a support pad (5).

4. The pump cover machining and fixing fixture for a water pump according to claim 1, characterized in that: A positioning shaft (6) is provided on the 90° enclosure (3) for setting the position of the adjusting bolt (4).

5. The pump cover machining and fixing fixture for a water pump according to claim 1, characterized in that: It also includes two guide rods (7) symmetrically arranged on the top of the base (1). The guide rods (7) are provided with pressure blocks (8) for pressing the side of the pump cover (20) and the top of the guide rods (7) are threaded with nuts (9) for locking the pressure blocks (8).

6. The pump cover machining and fixing fixture for a water pump according to claim 5, characterized in that: The base (1) has a balance column (10) on the side of each set of guide rods (7) away from the fixed position of the pump cover (20).

7. The pump cover machining and fixing fixture for a water pump according to claim 6, characterized in that: The balance column (10) includes a base column (101), a balance disc (102) and a slide bar (103). The column is fixed on the base (1), and the slide bar (103) is slidably mounted on the column and its top is fixedly connected to the balance disc (102). The column is provided with a self-locking balance component (11) for locking the slide bar (103).

8. The pump cover machining and fixing fixture for a water pump according to claim 7, characterized in that: The slide bar (103) is provided with a slide plate (12) at one end inside the base column (101). The base column (101) is provided with a plate groove (13) for the slide plate (12) to slide up and down. The self-locking balance component (11) includes a long rod (111), a locking plate (112) and a spring (113). The locking plate (112) is slidably disposed in the plate groove (13) and located below the slide plate (12). The spring (113) is symmetrically disposed in two sets and is fixed to the bottom of the plate groove (13). The top end of the spring (113) is fixedly connected to the bottom end face of the locking plate (112). The long rod (111) is symmetrically disposed on both sides inside the slide bar (103) and forms a sliding connection with the slide bar (103). A limiting component is provided between the top end of the long rod (111) and the balance plate, and a ball (14) is provided at the bottom end. The bottom end of the long rod (111) is hinged to the locking plate (112) through the ball (14).

9. The pump cover machining and fixing fixture for a water pump according to claim 8, characterized in that: The sliding column is provided with a long rod groove (15) for the long rod (111) to slide. The top of the balance plate (102) is provided with a notch (16) communicating with the long rod groove (15). The bottom of the pressure block (8) is provided with a stop rod (17) for pressing into the notch (16). The limiting member is a limiting plate (18). The inner wall of the long rod groove (15) is provided with a limiting groove (19) for the limiting plate (18) to slide up and down.

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