A pump body machining jig

Abstract

The utility model discloses a kind of pump body processing fixtures, it is related to pump body processing field, including jig base, detachably installed on machine tool workstation, pump body is supported on jig base by foot support;Two jig uprights, symmetrically arranged, and detachably installed on jig base, install a hand-operated screw rod on each jig upright;Jig crossbeam, each hand-operated screw rod is connected with jig crossbeam by screw rod nut, and jig crossbeam is slid up and down relative to jig upright by hand-operated screw rod, and sliding fixing seat is set on the both sides of jig crossbeam;Pump body flange fixed component, installed on jig crossbeam;And two groups of pump body foot pressing assembly, symmetrically arranged, and detachably installed on jig base.The utility model in pump body processing clamping, pump body foot and flange are stressed clamped, reduce the stress deformation of pump body inner hole in processing process, simultaneously satisfy the processing mode of multiple model pump body processing equipment and jig compatible.

Description

Technical Field

[0001] This utility model relates to the field of pump body processing, and specifically to a pump body processing fixture. Background Technology

[0002] Existing pump bodies are machined using a chuck clamping process to hold the pump body's shape during machining, such as... Figures 1-3 As shown, the process includes three steps: initial clamping machining, secondary clamping machining, and drilling / tapping. Due to the relatively thin wall of the pump body (2') and the unbalanced clamping force of the chuck (1'), the holes in the pump body are severely deformed after machining, making process control difficult. Furthermore, the workpiece needs to be constantly moved between different processes, resulting in high labor intensity and low production efficiency. Moreover, the use of decentralized process reference positioning makes it difficult to guarantee consistent quality, and the large amount of production equipment required leads to high rework rates and production costs. Utility Model Content

[0003] The purpose of this utility model is to overcome the shortcomings of the existing technology and provide a pump body processing fixture and processing method. The fixture is designed as a gantry type and also features a modular and adjustable structure. When the pump body is clamped during processing, the pump body base and flange are clamped under force, reducing the deformation of the pump body inner bore during processing. It also meets the processing requirements of multiple pump body processing equipment and fixtures.

[0004] The objective of this utility model is achieved through the following technical solution: a pump body machining fixture, comprising:

[0005] The fixture base is detachably mounted on the machine tool worktable, and the pump body is supported on the fixture base by feet.

[0006] Two fixture columns are arranged symmetrically and can be detachably installed on the fixture base. A hand-cranked screw is installed on each fixture column.

[0007] The jig beam has a hand crank screw connected to it via a screw nut. When the handle of the hand crank screw is turned, the jig beam slides up and down relative to the jig column. Sliding fixing seats are provided on both sides of the jig beam to lock and fix the jig beam to the jig column.

[0008] A pump body flange fixing assembly, mounted on the jig beam, is used to lock the pump body flange; and

[0009] Two sets of pump body foot clamping components are arranged symmetrically and can be detachably installed on the fixture base to clamp the feet on both sides of the pump body.

[0010] As a further technical solution, a pump body base fixing plate is installed in the middle of the fixture base. The pump body's feet are supported on the pump body base fixing plate, and the foot holes on the feet and the positioning pin holes on the pump body base fixing plate are positioned by positioning pins.

[0011] As a further technical solution, guide grooves are symmetrically opened on both sides of the fixture base, and several fixing holes are also opened on the fixture base between the pump body foot fixing plate and the guide groove; the pump body foot clamping assembly includes a pump body foot clamping plate, a guide pin is installed at one end of the pump body foot clamping plate, the guide pin slides along the corresponding guide groove to achieve guidance, and an oblong hole is opened in the middle of the pump body foot clamping plate to cooperate with the clamping bolt to lock the pump body foot clamping plate in the corresponding fixing hole, so that the other end of the pump body foot clamping plate presses the foot on the pump body foot fixing plate.

[0012] As a further technical solution, a clearance groove is provided at the bottom of the fixture column to allow the pump body's foot pressure plate to pass.

[0013] As a further technical solution, the hand-cranked screw is supported on the top of the fixture column by a hand-cranked screw mounting base.

[0014] As a further technical solution, the pump body flange fixing assembly includes a rotating rod, a rotating seat, and a pressure block. Two rotating seats are symmetrically arranged on the jig beam. The rotating rod has a "U" shaped structure, and both ends are rotatably connected to the corresponding rotating seats. A pressure block is set on the inner side of the middle of the rotating seat to contact and press the pump body flange. The pressure block is adjusted by a pump body flange pressure head threaded to the rotating rod. Two supports are symmetrically installed on the jig beam. Each support is threaded with a pump body flange pressure head to contact and press the pump body flange.

[0015] As a further technical solution, two rear end face limiting seats are symmetrically installed on the lower end face of the fixture beam. A pump body pressure head can be detachably installed on each rear end face limiting seat to limit the rear end face of the pump body. Several adjustment holes are opened along the vertical direction of the rear end face limiting seat to adjust the installation position of the pump body pressure head.

[0016] As a further technical solution, several adjustment holes are made along the vertical direction of the fixture column to lock and fix the fixture beam to the fixture column in conjunction with the sliding fixing seat.

[0017] The beneficial effects of this utility model are as follows:

[0018] 1. The pump body base clamping assembly is used to clamp the pump body base, and at the same time, the pump body flange fixing assembly is used to clamp the pump body flange. The positioning is no longer achieved by clamping the pump body wall, which optimizes the pump body processing and clamping method, balances the clamping force during pump body processing, reduces hole deformation after pump body processing, and improves the reliability of the process.

[0019] 2. No need for multiple processing steps; the pump body can be processed in just one step, reducing processing steps, lowering labor intensity, and improving production efficiency.

[0020] 3. The jig beam is raised and lowered by a hand crank screw, and the pump body base pressure plate can also be slidably adjusted, thereby meeting the compatibility of multiple pump body processing equipment and jigs, reducing rework rate and production costs, and improving the consistency of pump body processing quality. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the first processing step in the prior art.

[0022] Figure 2 This is a schematic diagram of the structure of the second processing step in the prior art.

[0023] Figure 3 This is a schematic diagram of the third processing step in the prior art.

[0024] Figure 4 This is a schematic diagram of the three-dimensional structure of the present invention after assembly with the pump body. Figure 1 .

[0025] Figure 5 This is a schematic diagram of the three-dimensional structure of the present invention after assembly with the pump body. Figure 2 .

[0026] Figure 6 for Figure 5 A magnified view of a portion of region A in the middle.

[0027] Figure 7 This is a top view of the structure of the present invention after assembly with the pump body.

[0028] Figure 8 This is a three-dimensional structural diagram of the present invention.

[0029] Explanation of reference numerals in the attached drawings: Chuck 1', Pump body 2';

[0030] 1. Machine tool worktable; 2. Fixture base; 3. Guide groove; 4. Fixture fixing hole; 5. Hand crank screw; 6. Fixture column; 7. Clearance groove; 8. Pump body foot pressure plate; 9. Sliding fixed seat; 10. Hand crank screw mounting seat; 11. Pump body flange fixing assembly; 12. Rotating rod; 13. Rotating seat; 14. Pressure block; 15. Pump body flange pressure head; 16. Pump body; 17. Front end face; 18. Rear end face; 19. Foot; 10. Foot hole; 10. Pump body flange; 10. Rear end face limit seat; 11. Guide pin; 12. Clamping bolt; 13. Adjustment hole; 14. Support; 15. Pump body pressure head. Detailed Implementation

[0031] The present invention will now be described in detail with reference to the accompanying drawings:

[0032] Example 1: As shown in the attached document Figures 4-8 As shown, a pump body machining fixture includes a machine tool worktable 1, a fixture base 2, a guide groove 2-1, a fixing hole 2-2, a fixture crossbeam 3, a pump body base fixing plate 4, a positioning pin hole 4-1, a hand crank screw 5, a fixture column 6, a clearance groove 6-1, a pump body base pressure plate 7, a waist-shaped hole 7-1, a sliding fixing seat 8, a hand crank screw mounting seat 9, a pump body flange fixing assembly 10, a rotating rod 10-1, a rotating seat 10-2, a pressure block 10-3, a pump body flange pressure head 11, a pump body 12, a front end face 12-1, a rear end face 12-2, a base 12-3, a base hole 12-4, a pump body flange 12-5, a rear end face limiting seat 13, a guide pin 14, a clamping bolt 15, an adjusting hole 16, a support 17, and a pump body pressure head 18.

[0033] Reference Appendix Figure 8 The fixture base 2 is detachably mounted on the machine tool worktable 1 by bolts, and the pump body 12 is supported on the fixture base 2 by feet 12-3. Two fixture columns 6 are arranged symmetrically on the left and right sides and are detachably mounted on the fixture base 2. At the same time, a hand crank screw 5 is mounted on the top of each fixture column 6 through a hand crank screw mounting seat 9. A hand crank screw 5 is inserted on both sides of the fixture beam 3. Each hand crank screw 5 is connected to the fixture beam 3 through a screw nut. When the handle of the hand crank screw 5 is turned, the fixture beam 3 slides up and down relative to the fixture column 6. In addition, sliding fixing seats 8 are provided on both sides of the fixture beam 3. Several adjustment holes 16 are opened along the vertical direction of each fixture column 6. The fixture beam 3 and the fixture column 6 can be locked and fixed by using the adjustment holes 16 (and bolts) in conjunction with the sliding fixing seats 8.

[0034] like Figure 4 , 5 As shown in Figures 7 and 8, the pump body flange fixing assembly 10 (installed on the jig beam 3) includes a rotating rod 10-1, a rotating seat 10-2, and a pressure block 10-3. Two rotating seats 10-2 are symmetrically arranged on the jig beam 3. The rotating rod 10-1 has an approximately "U" shaped structure, and both ends of the rotating rod 10-1 are rotatably connected to the corresponding rotating seats 10-2. The pressure block 10-3 is provided on the inner side of the middle of the rotating seat 10-2. The pressure block 10-3 is adjusted by the pump body flange pressure head 11 threadedly connected to the rotating rod 10-1. That is, when the pump body flange pressure head 11 is rotated, the pressure block 10-3 is controlled to contact and press (or loosen and move away from) the pump body flange 12-5.

[0035] Reference Appendix Figure 7 , 8Two supports 17 are symmetrically installed on the crossbeam 3 of the fixture. A pump body flange pressure head 11 is threaded onto each support 17. Rotate the pump body flange pressure head 11 so that its other end contacts and presses the pump body flange 12-5. At the same time, it cooperates with the pressure block 10-3 to form a triangular force on the pump body flange 12-5 (that is, pressing in three directions at the same time).

[0036] like Figure 5 , 6 As shown in Figure 8, two sets of pump body foot clamping assemblies are symmetrically arranged and detachably mounted on the fixture base 2, capable of clamping the feet 12-3 on both sides of the pump body 12. Furthermore, a pump body foot fixing plate 4 is installed in the middle of the fixture base 2, and the feet 12-3 of the pump body 12 are supported on the pump body foot fixing plate 4. Foot holes 12-4 are formed on the feet 12-3, and positioning pin holes 4-1 are formed on the pump body foot fixing plate 4. The foot holes 12-4 and positioning pin holes 4-1 are positioned by positioning pins. Guide grooves 2-1 are symmetrically formed on both sides of the fixture base 2, and several fixing holes 2-2 are also formed on the fixture base 2 between the pump body foot fixing plate 4 and the guide grooves 2-1. The pump body foot clamping assembly includes a pump body foot clamping plate 7. A guide pin 14 is installed at one end of the pump body foot clamping plate 7. The guide pin 14 slides along the corresponding guide groove 2-1 to achieve guidance. Preferably, an oblong hole 7-1 is opened in the middle of the pump body foot clamping plate 7. The oblong hole 7-1 can cooperate with the clamping bolt 15 to lock the pump body foot clamping plate 7 into the corresponding fixing hole 2-2, so that the other end of the pump body foot clamping plate 7 presses the foot 12-3 onto the pump body foot fixing plate 4. Preferably, an avoidance groove 6-1 is opened at the bottom of the fixture column 6 to avoid the pump body foot clamping plate 7.

[0037] like Figure 4 , 8 As shown, two rear end face limiting seats 13 are symmetrically installed on the lower end face of the fixture beam 3. A pump body pressure head 18 can be detachably installed on each rear end face limiting seat 13. The pump body pressure head 18 is used to limit the rear end face 12-2 of the pump body 12. Several adjustment holes 16 are opened along the vertical direction of the rear end face limiting seat 13, and the installation position of the pump body pressure head 18 can be adjusted through the adjustment holes 16.

[0038] Example 2: A pump body processing method, using the pump body processing fixture described in Example 1, includes the following steps:

[0039] S1. Install the fixture base 2 onto the machine tool worktable 1 and tighten it with connecting bolts;

[0040] S2. According to the model and corresponding size of the pump body 12, turn the handle of the hand crank screw 5 to adjust the jig beam 3 to a suitable height, and use bolts to lock the sliding fixed seat 8 to the corresponding adjustment hole 16 on the jig column 6.

[0041] S3. Select the appropriate pump body base fixing plate 4 according to the model of pump body 12, fix the pump body base fixing plate 4 and the fixture base 2 with positioning pins, and then pre-connect the pump body base pressure plate 7 and the fixture base 2 with clamping bolts 15, and adjust the relative position.

[0042] S4. Rotate the rotating rod 10-1 upwards by 130°, place the pump body 12 into the fixture, and position the bottom foot hole 12-4 of the pump body 12 with the positioning pin hole 4-1 on the bottom foot fixing plate 4 of the pump body through the positioning pin. S4 takes a total of 0.9 minutes.

[0043] S5. Push the pump body foot pressure plate 7 so that the guide pin 14 slides along the guide groove 2-1 of the fixture base 2. Move the pump body foot pressure plate 7 forward in the direction of the pump body 12 until it contacts the foot 12-3. Then tighten the clamping bolt 15 so that the pump body foot pressure plate 7 presses the foot 12-3. S5 takes a total of 0.8 minutes.

[0044] S6. Flip the rotating rod 10-1 downwards to be flush with the pump body flange 12-5. First, pre-lock the two pump body flange pressure heads 11 on the jig beam 3, and then lock the pump body flange pressure heads 11 on the pump body flange fixing assembly 10, so that the pressure block 10-3 presses the pump body flange 12-5. S6 takes a total of 1.2 minutes.

[0045] S7. Rough and fine machining of the front end face 12-1 of the pump body 12 and its inner circle, hole, thread and chamfer. S7 takes a total of 10.8 minutes.

[0046] S8. Control the machine tool worktable 1 to rotate 180° to perform rough and fine machining on the rear end face 12-2 of the pump body 12 and its outer circle, hole, thread and chamfer. S8 takes a total of 9.8 minutes.

[0047] Explanation of component terminology:

[0048] 1. Machine tool worktable: Equipment used to install the pump body machining fixture;

[0049] 2. Fixture base: A part installed on the machine tool workbench to install the pump body base fixing plate, fixture column and pump body base pressure plate;

[0050] 3. Fixture beam: A part installed on a sliding fixed seat and moved up and down with the sliding fixed seat by rotating a hand crank screw to clamp and position multiple pump body models for changeover.

[0051] 4. Pump body base fixing plate: This part is installed on the jig base by positioning pins and is used to install and position the pump body base.

[0052] 5. Hand crank screw: A part installed on a hand crank screw mounting base, which cooperates with a sliding fixed base and drives the sliding fixed base and the jig beam to move up and down;

[0053] 6. Fixture column: A component mounted on the fixture base to support and connect other parts;

[0054] 7. Pump body base pressure plate: Installed on the jig base, it slides back and forth along the guide groove of the jig base and is tightened with bolts to the pump body base;

[0055] 8. Sliding fixed seat: A part installed on the fixture column, which drives the fixture beam and pump body flange fixing assembly to move up and down along the fixture column by rotating the hand crank screw, and is fixed to the fixture column by bolts;

[0056] 9. Hand crank screw mounting bracket: Installed on the jig column, used to install parts that connect to the hand crank screw;

[0057] 10. Pump body flange fixing assembly: Installed on the jig beam, it avoids interference with pump body installation and disassembly by flipping up and down, and clamps the pump body flange parts by the pump body flange pressure head;

[0058] 11. Pump body flange clamping head: Installed on the jig beam and pump body flange fixing assembly, it clamps the pump body flange through triangular force.

[0059] It is understood that, for those skilled in the art, any equivalent substitutions or modifications to the technical solutions and inventive concepts of this utility model should fall within the protection scope of the appended claims.

Claims

1. A pump body machining fixture, characterized in that, include: The fixture base (2) is detachably mounted on the machine tool worktable (1), and the pump body (12) is supported on the fixture base (2) by the feet (12-3); Two fixture columns (6) are arranged symmetrically and can be detachably installed on the fixture base (2). A hand crank screw (5) is installed on each fixture column (6). The jig beam (3) has a hand crank screw (5) connected to the jig beam (3) via a screw nut. When the handle of the hand crank screw (5) is turned, the jig beam (3) slides up and down relative to the jig column (6). Sliding fixing seats (8) are set on both sides of the jig beam (3) to lock and fix the jig beam (3) and the jig column (6). A pump body flange fixing assembly (10), mounted on the jig beam (3), is used to lock the pump body flange (12-5); and Two sets of pump body foot clamping components are arranged symmetrically and can be detachably installed on the jig base (2) to clamp the feet (12-3) on both sides of the pump body (12).

2. The pump body machining fixture according to claim 1, characterized in that: The base (2) of the fixture is equipped with a pump body foot fixing plate (4) in the middle. The foot (12-3) of the pump body (12) is supported on the pump body foot fixing plate (4). The foot hole (12-4) on the foot (12-3) and the positioning pin hole (4-1) on the pump body foot fixing plate (4) are positioned by positioning pins.

3. The pump body machining fixture according to claim 2, characterized in that: The fixture base (2) has symmetrical guide grooves (2-1) on both sides. The fixture base (2) between the pump body foot fixing plate (4) and the guide groove (2-1) also has several fixing holes (2-2). The pump body foot clamping assembly includes a pump body foot clamping plate (7). A guide pin (14) is installed at one end of the pump body foot clamping plate (7). The guide pin (14) slides along the corresponding guide groove (2-1) to achieve guidance. A waist-shaped hole (7-1) is opened in the middle of the pump body foot clamping plate (7) to cooperate with the clamping bolt (15) to lock the pump body foot clamping plate (7) in the corresponding fixing hole (2-2), so that the other end of the pump body foot clamping plate (7) presses the foot (12-3) on the pump body foot fixing plate (4).

4. The pump body machining fixture according to claim 3, characterized in that: The bottom of the fixture column (6) has a clearance groove (6-1) to avoid the pump body foot pressure plate (7).

5. The pump body machining fixture according to claim 1, characterized in that: The hand crank screw (5) is supported on the top of the fixture column (6) by the hand crank screw mounting seat (9).

6. The pump body machining fixture according to claim 1, characterized in that: The pump body flange fixing assembly (10) includes a rotating rod (10-1), a rotating seat (10-2), and a pressure block (10-3). Two rotating seats (10-2) are symmetrically arranged on the jig beam (3). The rotating rod (10-1) has a "U" shaped structure and its two ends are rotatably connected to the corresponding rotating seats (10-2). A pressure block (10-3) is provided on the inner side of the middle of the rotating seat (10-2) for contacting and pressing the pump body flange (12-5). The pressure block (10-3) is adjusted by a pump body flange pressure head (11) threadedly connected to the rotating rod (10-1). Two supports (17) are symmetrically installed on the jig beam (3). Each support (17) is threadedly connected to a pump body flange pressure head (11) for contacting and pressing the pump body flange (12-5).

7. The pump body machining fixture according to claim 1, characterized in that: Two rear end face limiting seats (13) are symmetrically installed on the lower end face of the fixture beam (3). A pump body pressure head (18) can be detachably installed on each rear end face limiting seat (13) to limit the rear end face (12-2) of the pump body (12). Several adjustment holes (16) are opened along the vertical direction of the rear end face limiting seat (13) to adjust the installation position of the pump body pressure head (18).

8. The pump body machining fixture according to claim 1, characterized in that: Several adjustment holes (16) are made along the vertical direction of the fixture column (6) to cooperate with the sliding fixing seat (8) to lock and fix the fixture beam (3) to the fixture column (6).

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