A machining and positioning device for an end suction pump body

Abstract

The application relates to the technical field of pump body machining, in particular to a machining positioning device for end suction pump bodies, which comprises a four-axis rotary table, first positioning mechanisms and second positioning mechanisms are arranged on the support plate of the four-axis rotary table along the length direction respectively, the first positioning mechanisms and the second positioning mechanisms are used for fixing first pump bodies and second pump bodies respectively, the pump body stopper of the first pump body is arranged downward when the first pump body is fixed, and the water inlet flange of the second pump body is arranged downward when the second pump body is fixed, the four-axis rotary table is arranged in the application, two positioning mechanisms are arranged on the support plate of the four-axis rotary table, then the two positioning mechanisms are used for positioning two pump bodies respectively, and then the support plate is driven to rotate by the four-axis rotary table, so that the two pump bodies can be machined at different positions at the same time, and the machining efficiency of the pump bodies is greatly improved.

Description

TECHNICAL FIELD

[0001] The application relates to the technical field of pump body machining, in particular to a machining positioning device for an end suction pump body. BACKGROUND

[0002] When the end suction pump body is machined, the front face, end face and inclined face of the oil pump body workpiece need to be machined, and before machining, a positioning device is needed to clamp and fix the pump body to ensure the stability of the pump body during machining.

[0003] Because the end suction pump has a complex design structure, multiple compound angles are formed on the workpiece during machining, and machining can only be completed after one-time clamping on a special machine tool. The vertical machining center refers to a machining center with a vertical spindle, and the structure is mostly fixed column, the workbench is rectangular, and there is no indexing rotation function, which is suitable for machining disc, sleeve and plate parts. It generally has three linear motion coordinate axes, and a rotary table along the horizontal axis can be installed on the workbench to process helical line parts. Machining according to the ordinary machining process on the vertical machining center requires three clamps, and two or three machine tools to complete the machining, which seriously affects the production rhythm, and the multiple installation and positioning will cause machining errors. Therefore, the machining positioning device for the end suction pump body is put into use to solve the above problems. SUMMARY

[0004] The application aims to provide a machining positioning device for an end suction pump body, which solves the problem of complicated positioning process and low machining efficiency of the pump body.

[0005] To achieve the above-mentioned purpose, the application provides the following technical scheme: a machining positioning device for an end suction pump body, comprising a four-axis rotary table, a first positioning mechanism and a second positioning mechanism are arranged on the support plate of the four-axis rotary table along the length direction respectively, the first positioning mechanism and the second positioning mechanism are used for fixing a first pump body and a second pump body respectively, when the first pump body is fixed, the pump body stopper of the first pump body is arranged downward, when the second pump body is fixed, the water inlet flange of the second pump body is arranged downward.

[0006] The first positioning mechanism comprises a base, the base is installed on the support plate, a three-jaw chuck is installed on the top of the base, when the first pump body is fixed, the stopper of the first pump body is arranged on the top of the base, and the three-jaw chuck is located in the inner cavity of the first pump body, and the ends of the three claws away from each other are in abutment with the inner wall of the first pump body.

[0007] The second positioning mechanism comprises a positioning disc, and the positioning disc is a hollow structure, a positioning pin which is matched with the water inlet flange hole of the second pump body is inserted into the top of the positioning disc, and the inside of the positioning pin is a hollow structure, a first lifting assembly is arranged in the inner cavity of the positioning disc, the first lifting assembly is connected with the positioning pin, a limit strip assembly which can be ejected is arranged at the end of the inner cavity of the positioning pin which is far away from the positioning disc, after the positioning pin passes through the water inlet flange hole of the pump body, the first lifting assembly drives the positioning pin to descend, the limit strip assembly is ejected, and the limit strip assembly is abutted and fixed to the water inlet flange of the second pump body.

[0008] Preferably, the first lifting assembly comprises a first lifting plate and two first lead screws, the first lifting plate is slidingly connected between the side walls in the inner cavity of the positioning disc, the two first lead screws are rotationally connected at the bottom of the inner cavity of the positioning disc, one end of the first lead screw penetrates through the inner cavity of the first lifting plate and is rotationally connected with the top of the inner cavity of the positioning disc, a first driven gear is fixed to the outer wall below the first lead screw, a first rotating rod is rotationally connected at the bottom of the support plate of the four-axis rotary table, a first driving gear is fixed to one end of the first rotating rod which penetrates through the bottom of the positioning disc, and the first driving gear is meshingly connected with the two groups of first driven gears.

[0009] Preferably, the limit strip assembly comprises a limit column and two groups of limit strips, the limit column is fixedly inserted into the bottom of the inner cavity of the positioning disc, one end of the limit column penetrates through the inner cavity of the first lifting plate and the top of the positioning disc in sequence and is located in the inner cavity of the positioning pin, the two groups of limit strips are vertically inserted into the side walls of the positioning pin and are slidingly connected with the positioning pin, limit blocks are mounted at the ends of the two limit strips which are close to each other, and the limit column is located between the two limit blocks, during the descending process of the positioning pin, the limit column is close to the limit strips and ejects the two limit strips.

[0010] Preferably, a spring is sleeved on the outer wall between the limit block and the positioning pin, and the opposite ends of the spring are connected with the inner wall of the limit block and the positioning pin respectively.

[0011] Preferably, a first tapered surface is arranged at the end of the limit column which is close to the limit block, and the limit block is provided with a second tapered surface which is matched with the first tapered surface.

[0012] Preferably, a third tapered surface and a fourth tapered surface are arranged on the upper and lower sides of the end of the limit strip which penetrates out of the positioning pin.

[0013] Preferably, arc-shaped abutting strips are arranged at the ends of the three clamping teeth of the three-jaw chuck which are far away from each other.

[0014] Preferably, the inner cavity of the base is provided with a second lifting assembly, the second lifting assembly is connected with the three-jaw chuck, after the arc-shaped abutting strip of the three-jaw chuck abuts against the first pump body, the second lifting assembly drives the three-jaw chuck to descend, so that the bottom of the arc-shaped abutting strip abuts against the stop ring of the inner wall of the first pump body.

[0015] Preferably, the second lifting assembly comprises a second lifting plate and two second lead screws, the second lifting plate is slidingly connected to the side wall of the inner cavity of the base, the three-jaw chuck is installed on the top of the second lifting plate, the second lead screws are rotatably connected to the bottom of the inner cavity of the base, one end of each of the second lead screws penetrates through the inner cavity of the second lifting plate and abuts against the top of the inner cavity of the base, the outer wall of each of the second lead screws is fixedly connected with a second driven gear, the bottom of the support plate of the four-axis turntable is rotatably connected with a second rotating rod, one end of the second rotating rod penetrates through the bottom of the base and is fixedly connected with a second driving gear, and the second driving gear is meshingly connected with the two second driven gears.

[0016] Compared with the prior art, the present application has the following beneficial effects:

[0017] In the present application, the four-axis turntable is provided, and two positioning mechanisms are arranged on the support plate of the four-axis turntable, then the two pump bodies are positioned by the two positioning mechanisms respectively, and then the support plate is driven to rotate by the four-axis turntable, so that the two pump bodies can be machined at different positions at the same time, thereby greatly improving the machining efficiency of the pump body.

[0018] The first positioning mechanism in the present application comprises the three-jaw chuck, so that when the first pump body is positioned, the inner wall of the first pump body can be abutted by the three sets of clamping teeth on the three-jaw chuck, thereby ensuring the fixation of the first pump body, and the second positioning mechanism comprises a positioning pin, a first lifting assembly and a limiting strip assembly, so that when the second pump body is positioned, the second pump body can be preliminarily positioned by the positioning pin, then the positioning pin is driven to descend by the first lifting assembly, and the limiting strip assembly is extended, so that the limiting strip assembly can press and fix the water inlet flange of the second pump body. The positioning principles of the two positioning mechanisms are both reasonable, which utilize the structure on the pump body for press-fixing, and when positioning, the operation is simple, only the three-jaw chuck and the positioning disc need to be operated, without the need of additional pressing plate structure on the support plate for press-fixing the pump body, thereby improving the disassembly and assembly efficiency of the pump body, and further improving the machining efficiency of the pump body. BRIEF DESCRIPTION OF DRAWINGS

[0019] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings needed for the following embodiment description will be briefly introduced. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can also be obtained by those skilled in the art without any creative effort.

[0020] Figure 1 It is a structural schematic diagram of the processing positioning device of the present invention;

[0021] Figure 2 This is a schematic diagram of the structure of the processing positioning device of the present invention after the pump body is installed;

[0022] Figure 3 for Figure 2 A magnified schematic diagram of the structure at center A;

[0023] Figure 4 for Figure 2 A magnified schematic diagram of the structure at B in the middle;

[0024] Figure 5 Schematic diagram of the structure of the first positioning mechanism in the processing positioning device of the present invention;

[0025] Figure 6 Schematic diagram of the cross-sectional structure of the first positioning mechanism in the machining positioning device of the present invention;

[0026] Figure 7 Schematic diagram of the structure of the second positioning mechanism in the processing positioning device of the present invention;

[0027] Figure 8 Schematic diagram of the cross-sectional structure of the second positioning mechanism in the machining positioning device of the present invention;

[0028] Figure 9 for Figure 8 A magnified schematic diagram of the structure in the first state at position C in the middle;

[0029] Figure 10 for Figure 8 An enlarged schematic diagram of the structure in the second state at point C in the middle.

[0030] In the accompanying drawings, the components represented by the reference numerals are as follows:

[0031] 1. Four-axis turntable; 2. First positioning mechanism; 21. Base; 22. Three-jaw chuck; 23. Arc-shaped abutment bar; 24. Second lifting assembly; 241. Second lifting plate; 242. Second screw rod; 243. Second driven gear; 244. Second rotating rod; 245. Second driving gear; 3. Second positioning mechanism; 31. Positioning plate; 32. Positioning pin; 33. First lifting assembly; 331. First lifting plate; 332. First screw rod; 333. First driven gear; 334. First rotating rod; 335. First driving gear; 34. Limiting bar assembly; 341. Limiting column; 342. Limiting bar; 343. Limiting block; 344. Spring. DETAILED DESCRIPTION

[0032] Clearly, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the scope of protection of the present application.

[0033] Please refer to Figures 1-10 The technical scheme provided by the present application is:

[0034] A machining and positioning device for an end suction pump body, comprising a four-axis rotary table 1, a first positioning mechanism 2 and a second positioning mechanism 3 are respectively arranged on the support plate of the four-axis rotary table 1 along the length direction, the first positioning mechanism 2 and the second positioning mechanism 3 respectively fix a first pump body and a second pump body, when the first pump body is fixed, the pump body stopper of the first pump body is arranged downward, when the second pump body is fixed, the water inlet flange of the second pump body is arranged downward;

[0035] The first positioning mechanism 2 comprises a base 21, the base 21 is installed on the support plate, a three-jaw chuck 22 is installed on the top of the base 21, when the first pump body is fixed, the stopper of the first pump body is arranged on the top of the base 21, and the three-jaw chuck 22 is located in the inner cavity of the first pump body and the three teeth are away from each other. One end of each tooth abuts against the inner wall of the first pump body;

[0036] The second positioning mechanism 3 comprises a positioning disc 31, and the positioning disc 31 is a hollow structure, a positioning pin 32 matched with the water inlet flange hole of the second pump body is inserted into the top of the positioning disc 31, and the inside of the positioning pin 32 is a hollow structure, a first lifting assembly 33 is arranged in the inner cavity of the positioning disc 31, the first lifting assembly 33 is connected with the positioning pin 32, a limiting strip assembly 34 which can be ejected is arranged at the end of the inner cavity of the positioning pin 32 away from the positioning disc 31, after the positioning pin 32 passes through the water inlet flange hole of the pump body, the first lifting assembly 33 drives the positioning pin 32 to descend to eject the limiting strip assembly 34, and the limiting strip assembly 34 abuts against and fixes the water inlet flange of the second pump body.

[0037] Specifically, the first lifting assembly 33 comprises a first lifting plate 331 and two first lead screws 332, the first lifting plate 331 is slidingly connected between the inner cavity side walls of the positioning disc 31, the two first lead screws 332 are rotatably connected to the bottom of the inner cavity of the positioning disc 31, one end of the first lead screw 332 penetrates the inner cavity of the first lifting plate 331 and is rotatably connected to the top of the inner cavity of the positioning disc 31, the outer wall below the first lifting plate 331 is fixedly connected with a first driven gear 333, the bottom of the support plate of the four-axis rotary table 1 is rotatably connected with a first rotating rod 334, one end of the first rotating rod 334 penetrates the bottom of the positioning disc 31 and is fixedly connected with a first driving gear 335, and the first driving gear 335 is meshingly connected with the two groups of first driven gears 333.

[0038] From the above description: the use of lead screw driven lifting plate lifting not only makes the lifting plate lifting stable, controllable, and the interlocking function between the lead screw and the lifting plate, greatly improves the stability of the lifting plate, so as to ensure the stability of the positioning pin, and the driving mode of the lead screw is rotation, which is more labor-saving and convenient.

[0039] Specifically, the limiting strip assembly 34 includes a limiting column 341 and two groups of limiting strips 342, the limiting column 341 is fixedly inserted into the inner cavity of the positioning disc 31, and one end of the limiting column 341 penetrates the inner cavity of the first lifting plate 231 and the top of the positioning disc 31 in turn and is located in the inner cavity of the positioning pin 32, the two groups of limiting strips 342 are vertically inserted into the side wall of the positioning pin 32 and are in sliding connection with the positioning pin 32, one end of the two limiting strips 342 close to each other is provided with a limiting block 343, and the limiting column 341 is located between the two limiting blocks 343, and in the descending process of the positioning pin 32, the limiting column 341 approaches the limiting strip 342 and pushes out the two limiting strips 342.

[0040] From the above description: in the process of the lifting plate driving the positioning pin to descend, the limiting column approaches the two limiting blocks and abuts against the two limiting blocks, and then the limiting blocks and the limiting strips are pushed out of the side wall of the positioning pin as the positioning pin continues to slide, and then the positioning pin continues to descend until the two limiting strips abut against the water inlet flange of the second pump body, and then the lifting is stopped, finally the horizontal position of the second water pump is limited by the positioning pin, and the vertical position of the second pump body is limited by the limiting strip, so as to realize the fixation of the second pump body.

[0041] Specifically, the outer wall of the limiting strip 342 between the limiting block 343 and the positioning pin 32 is sleeved with a spring 344, and the opposite ends of the spring 344 are connected with the inner walls of the limiting block 343 and the positioning pin 32 respectively.

[0042] From the above description: by setting the spring, when the limiting column is separated from the contact with the limiting block, the limiting strip can return to the inside of the positioning pin under the action of the restoring force of the spring, and the opposite ends of the spring are connected with the inner walls of the limiting block and the positioning pin respectively, which can limit the position of the limiting strip and avoid the falling of the limiting strip.

[0043] Specifically, one end of the limiting column 341 close to the limiting block 343 is provided with a first tapered surface, and the limiting block 343 is provided with a second tapered surface matched with the first tapered surface.

[0044] From the above description: through the cooperation of the first tapered surface and the second tapered surface, when the limiting column contacts with the limiting block, a force pushing the limiting block outward can be generated, so as to realize the stable pushing out of the limiting strip.

[0045] Specifically, the third tapered surface and the fourth tapered surface are arranged on the upper and lower sides of one end of the limiting strip 342 penetrating out of the positioning pin 32.

[0046] From the above description, it can be seen that when the water inlet flange of the second pump body is installed or disassembled and contacts the limiting strip, a force can be generated to the limiting strip to slide to the inside of the positioning pin, thereby facilitating the disassembly of the second pump body and avoiding the interference of the extending part of the limiting strip with the disassembly of the second pump body.

[0047] Specifically, the three ends of the three clamping teeth of the three-jaw chuck 22 away from each other are respectively provided with arc abutting strips 23.

[0048] From the above description, it can be seen that the arc abutting strips can increase the contact area of the clamping teeth and the inner wall of the first pump body, thereby improving the abutting force between the clamping teeth and the first pump body.

[0049] Specifically, the inner cavity of the base 21 is provided with a second lifting assembly 24, and the second lifting assembly 24 is connected with the three-jaw chuck 22. After the arc abutting strips 23 of the three-jaw chuck 22 abut against the first pump body, the second lifting assembly 24 drives the three-jaw chuck 22 to descend, so that the bottom of the arc abutting strips 23 abuts against the stop ring of the inner wall of the first pump body.

[0050] From the above description, it can be seen that the second lifting assembly drives the three-jaw chuck to descend, so that the arc abutting strips abut against the stop ring, thereby achieving the limiting and fixing of the vertical displacement of the first pump body, and further ensuring the firmness of the installation of the first pump body.

[0051] Specifically, the second lifting assembly 24 includes a second lifting plate 241 and two second lead screws 242. The second lifting plate 241 is slidingly connected to the inner cavity side wall of the base 21, and the three-jaw chuck 22 is installed on the top of the second lifting plate 241. The second lead screws 242 are rotatably connected to the inner cavity bottom of the base 21, and one end of each of the second lead screws 242 penetrates the inner cavity of the second lifting plate 241 and abuts against the top of the inner cavity of the base 21. The outer wall of each of the second lead screws 242 is fixedly connected with a second driven gear 243. The bottom of the support plate of the four-axis rotary table 1 is rotatably connected with a second rotary rod 244, one end of the second rotary rod 244 penetrates the bottom of the base 21 and is fixedly connected with a second driving gear 245, and the second driving gear 245 is meshingly connected with the two second driven gears 243.

[0052] From the above description, it can be seen that the lifting plate is lifted by the lead screw, which not only makes the lifting plate lift stably and controllably, but also has interlocking function between the lead screw and the lifting plate, greatly improves the stability of the lifting plate, thereby ensuring the stability of the three-jaw chuck. At the same time, the driving mode of the lead screw is rotation, which is more labor-saving and convenient.

[0053] Referring to Figures 1-10 The embodiment one of the present application is:

[0054] As Figure 1 , 2, 3 and 4 shown: a kind of machining positioning device of end suction pump body, including four-axis rotary table 1, first positioning mechanism 2 and second positioning mechanism 3 are respectively provided on the support plate of four-axis rotary table 1 along the length direction, first positioning mechanism 2 and second positioning mechanism 3 are respectively fixed first pump body and second pump body, when first pump body is fixed, the pump body stop of first pump body is set to face down, when second pump body is fixed, the water inlet flange of second pump body is set to face down;

[0055] As shown in Figure 5 and 6 : first positioning mechanism 2 includes base 21, base 21 is installed on the support plate, three-jaw chuck 22 is installed on the top of base 21, when first pump body is fixed, the stop of first pump body is set on the top of base 21, the three teeth of three-jaw chuck 22 are respectively provided with arc abutment strip 23 at the end away from each other, and three-jaw chuck 22 is located in the inner cavity of first pump body and three arc abutment strips 23 are all in abutment with the inner wall of first pump body;

[0056] In the embodiment, the inner cavity of base 21 is provided with second lifting assembly 24, second lifting assembly 24 is connected with three-jaw chuck 22, after the arc abutment strip 23 of three-jaw chuck 22 is in abutment with first pump body, second lifting assembly 24 drives three-jaw chuck 22 to descend, so that the bottom of arc abutment strip 23 is in abutment with the stop ring of the inner wall of first pump body, second lifting assembly 24 includes second lifting plate 241 and two second lead screws 242, second lifting plate 241 is slidingly connected to the inner cavity side wall of base 21, three-jaw chuck 22 is installed on the top of second lifting plate 241, second lead screw 242 is rotatably connected to the inner cavity bottom of base 21, and one end of second lead screw 242 penetrates the inner cavity of second lifting plate 241 and is in abutment with the top of the inner cavity of base 21, second driven gear 243 is fixedly connected to the outer wall of second lead screw 242, second rotating rod 244 is rotatably connected to the bottom of the support plate of four-axis rotary table 1, second rotating rod 244 penetrates the bottom of base 21 and is fixedly connected with second driving gear 245 at one end, and second driving gear 245 is meshingly connected with two second driven gears 243.

[0057] Please refer to Figure 7 、 8 , 9 and 10 shown: second positioning mechanism 3 includes positioning disc 31, and the positioning disc 31 is hollow structure, the positioning disc 31 top is inserted with the positioning pin 32 matched with the water inlet flange hole of second pump body, and the positioning pin 32 inside is hollow structure, the inner cavity of positioning disc 31 is provided with first lifting assembly 33, first lifting assembly 33 is connected with positioning pin 32, the end away from positioning disc 31 of the inner cavity of positioning pin 32 is provided with limit strip assembly 34 which can be ejected, after positioning pin 32 penetrates the water inlet flange hole of pump body, first lifting assembly 33 drives positioning pin 32 to descend and ejects limit strip assembly 34, and makes limit strip assembly 34 abut and fix the water inlet flange of second pump body.

[0058] Please refer to Figure 8 As shown in the figure: the first lifting assembly 33 includes a first lifting plate 331 and two first lead screws 332, the first lifting plate 331 is slidingly connected between the side walls of the inner cavity of the positioning disc 31, and the two first lead screws 332 are rotatably connected to the bottom of the inner cavity of the positioning disc 31, and one end of the first lead screw 332 penetrates the inner cavity of the first lifting plate 331 and is rotatably connected to the top of the inner cavity of the positioning disc 31, the outer wall below the first lifting plate 331 is fixedly connected with a first driven gear 333, and the bottom of the support plate of the four-axis rotary table 1 is rotatably connected with a first rotating rod 334, one end of the first rotating rod 334 penetrates the bottom of the positioning disc 31 and is fixedly connected with a first driving gear 335, and the first driving gear 335 is meshingly connected with the two groups of first driven gears 333.

[0059] Among them, the limiting strip assembly 34 includes a limiting column 341 and two groups of limiting strips 342, the limiting column 341 is fixedly inserted into the bottom of the inner cavity of the positioning disc 31, and one end of the limiting column 341 penetrates the inner cavity of the first lifting plate 231 and the top of the positioning disc 31 in sequence and is located in the inner cavity of the positioning pin 32, the two groups of limiting strips 342 are vertically inserted into the side walls of the positioning pin 32 and are slidingly connected with the positioning pin 32, one end of the two limiting strips 342 close to each other is provided with a limiting block 343, and the limiting column 341 is located between the two limiting blocks 343, during the descending process of the positioning pin 32, the limiting column 341 approaches the limiting strip 342 and pushes out the two limiting strips 342, the outer wall of the limiting strip 342 between the limiting block 343 and the positioning pin 32 is sleeved with a spring 344, the opposite ends of the spring 344 are connected with the limiting block 343 and the inner wall of the positioning pin 32 respectively, one end of the limiting column 341 close to the limiting block 343 is provided with a first tapered surface, the limiting block 343 is provided with a second tapered surface matched with the first tapered surface, and the upper and lower sides of one end of the limiting strip 342 penetrating out of the positioning pin 32 are respectively provided with a third tapered surface and a fourth tapered surface.

[0060] The positioning process of the above embodiment during the machining of the pump body is as follows:

[0061] During the machining of the first pump body, the stop opening of the first pump body is downward and is arranged on the top of the base 21, and the three-jaw chuck 22 is located inside the first pump body, then the driving member in the three-jaw chuck 22 is rotated to drive the three sets of clamping teeth and the arc-shaped abutting strips 23 to move in the direction away from each other, so that the three sets of abutting strips 23 are all abutted with the inner wall of the first pump body, then the second rotating rod 244 is rotated, the second driving gear 245 and the second driven gear 243 of the second rotating rod 244 drive the second lead screw 242 to rotate, so as to drive the second lifting plate 241 and the three-jaw chuck 22 to slide downward, and finally the arc-shaped abutting strips 23 are abutted with the stop ring inside the first pump body, so as to complete the fixation of the first pump body;

[0062] When the second pump body is machined, the water inlet flange of the second pump body is placed on the top of the positioning disc 31 downward, the water inlet flange hole is aligned with the positioning pin 32, the end of the positioning pin 32 is inserted through the flange hole, then the first rotating rod 334 is rotated, the first lifting plate 331 is lowered and the positioning pin 32 is lowered through the cooperation of the first driving gear 335 and the first driven gear 333, during the lowering of the positioning pin 32, the limiting blocks 343 on both sides of the positioning pin 32 gradually approach the limiting column 341 and contact the limiting column 341 (the limiting column is arranged between the two limiting blocks), then the limiting column 341 pushes the two groups of limiting blocks 343 and the limiting strip 342 out of the outside of the positioning pin 32 through the cooperation of the first tapered surface and the second tapered surface during the continuous downward sliding process, and as the positioning pin 32 continues to slide downward, the two groups of positioning pins 32 contact the top surface of the water inlet flange, so that the position of the second pump body is limited and fixed, and the installation of the second pump body is completed.

[0063] After the installation of the first pump body and the second pump body is completed, the milling, drilling and other processing operations are performed on the two pump bodies, and after the processing is completed, the two pump bodies are disassembled.

[0064] When the first pump body is disassembled, the three-jaw chuck 22 is first raised upward, then the three-jaw chuck 22 is rotated to retract the three clamping teeth of the three-jaw chuck 22, and then the first pump body is removed.

[0065] When the second pump body is disassembled, the positioning pin 32 is raised, and when the limiting block 343 is separated from the limiting column 341, the limiting block 343 and the limiting strip 342 return to the original position (i.e. one end of the limiting strip 342 slides into a position flush with the side wall of the positioning pin 32) under the action of the restoring force of the spring 344, and then the second pump body is removed.

[0066] In the description of the present application, it should be understood that the terms "coaxial", "bottom", "one end", "top", "middle", "the other end", "upper", "one side", "top", "inner", "front", "central", "both ends" and the like indicate the orientation or positional relationship based on the orientation or positional relationship of the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, therefore it cannot be understood as a limitation of the present application.

[0067] In the present application, unless otherwise explicitly specified and limited, the terms "mounting", "setting", "connecting", "fixing", "screwing" and the like should be understood in a broad sense, for example, can be fixed connection, can also be detachable connection, or integrated; can be mechanical connection, can also be electrical connection; can be directly connected, can also be indirectly connected through an intermediate medium, can be the internal communication of two elements or the interaction relationship of two elements, unless otherwise explicitly limited, the person skilled in the art can understand the specific meaning of the above-mentioned terms in the present application according to the specific circumstances.

[0068] Although the embodiments of the present application have been shown and described, it will be understood by those skilled in the art that modifications can be made to the embodiments without departing from the principles and spirit of the present application, and the scope of the present application is defined by the appended claims and their equivalents.

Claims

1. A machining and positioning device for an end-suction pump body, characterized in that: The invention comprises a four-axis turntable (1), wherein a first positioning mechanism (2) and a second positioning mechanism (3) are respectively provided on a support plate of the four-axis turntable (1) along a length direction, wherein the first positioning mechanism (2) and the second positioning mechanism (3) respectively fix a first pump body and a second pump body, wherein when the first pump body is fixed, the pump body stop of the first pump body is arranged downward, and when the second pump body is fixed, the water inlet flange of the second pump body is arranged downward; The first positioning mechanism (2) includes a base (21), the base (21) is mounted on a support plate, a three-jaw chuck (22) is mounted on the top of the base (21), and when the first pump body is fixed, the stopper of the first pump body is placed on the top of the base (21), and the three-jaw chuck (22) is located in the inner cavity of the first pump body, and the ends of the three teeth that are away from each other are all in contact with the inner wall of the first pump body; The second positioning mechanism (3) includes a positioning plate (31), and the positioning plate (31) is a hollow structure. A positioning pin (32) that cooperates with the water inlet flange hole of the second pump body is inserted on the top of the positioning plate (31), and the interior of the positioning pin (32) is a hollow structure. A first lifting component (33) is provided in the inner cavity of the positioning plate (31), and the first lifting component (33) is connected to the positioning pin (32). An ejectable limiting strip component (34) is provided at one end of the inner cavity of the positioning pin (32) away from the positioning plate (31). After the positioning pin (32) passes through the water inlet flange hole of the pump body, the first lifting component (33) drives the positioning pin (32) to descend to eject the limiting strip component (34), and causes the limiting strip component (34) to abut and fix the water inlet flange of the second pump body. The three teeth of the three-jaw chuck (22) are each provided with an arc-shaped abutting strip (23) at one end away from each other, and the inner cavity of the base (21) is provided with a second lifting assembly (24), and the second lifting assembly (24) is connected to the three-jaw chuck (22). After the arc-shaped abutting strip (23) of the three-jaw chuck (22) abuts against the first pump body, the second lifting assembly (24) drives the three-jaw chuck (22) to descend, so that the bottom of the arc-shaped abutting strip (23) abuts against the stop ring on the inner wall of the first pump body.

2. The machining and positioning device for an end-suction pump body according to claim 1, characterized in that: The first lifting assembly (33) includes a first lifting plate (331) and two first screw rods (332), wherein the first lifting plate (331) is slidably connected between the side walls of the inner cavity of the positioning plate (31), and the two first screw rods (332) are rotatably connected to the bottom of the inner cavity of the positioning plate (31), and one end of the first screw rod (332) passes through the inner cavity of the first lifting plate (331) and is rotatably connected to the top of the inner cavity of the positioning plate (31), and the outer wall of the first screw rod (332) below the first lifting plate (331) is fixedly connected to the first driven gear (333), and the bottom of the support plate of the four-axis turntable (1) is rotatably connected to the first rotating rod (334), one end of the first rotating rod (334) passes through the bottom of the positioning plate (31) and is fixedly connected to the first driving gear (335), and the first driving gear (335) is meshed and connected with the two sets of first driven gears (333).

3. The machining and positioning device for an end-suction pump body according to claim 2, characterized in that: The limiting bar assembly (34) includes a limiting column (341) and two groups of limiting bars (342), wherein the limiting column (341) is fixedly inserted into the bottom of the inner cavity of the positioning plate (31), and one end of the limiting column (341) sequentially passes through the inner cavity of the first lifting plate (331) and the top of the positioning plate (31) and is located in the inner cavity of the positioning pin (32), the two groups of limiting bars (342) are vertically inserted into the side wall of the positioning pin (32) and are slidably connected to the positioning pin (32), and a limiting block (343) is installed at one end of the two limiting bars (342) close to each other, and the limiting column (341) is located between the two limiting blocks (343), and when the positioning pin (32) descends, the limiting column (341) approaches the limiting bars (342) and pushes the two limiting bars (342) out.

4. The machining and positioning device for an end-suction pump body according to claim 3, characterized in that: A spring (344) is sleeved on the outer wall of the limiting strip (342) between the limiting block (343) and the positioning pin (32), and opposite ends of the spring (344) are respectively connected to the inner walls of the limiting block (343) and the positioning pin (32).

5. The machining and positioning device for an end-suction pump body according to claim 3, characterized in that: One end of the limiting column (341) close to the limiting block (343) is provided with a first conical surface, and the limiting block (343) is provided with a second conical surface that cooperates with the first conical surface.

6. The machining and positioning device for an end-suction pump body according to claim 3, characterized in that: The upper and lower side surfaces of one end of the limiting strip (342) passing through the positioning pin (32) are respectively provided with a third conical surface and a fourth conical surface.

7. The machining and positioning device for an end-suction pump body according to claim 1, characterized in that: The second lifting assembly (24) includes a second lifting plate (241) and two second screw rods (242), the second lifting plate (241) is slidably connected to the side wall of the inner cavity of the base (21), the three-jaw chuck (22) is installed on the top of the second lifting plate (241), the second screw rod (242) is rotatably connected to the bottom of the inner cavity of the base (21), and one end of the second screw rod (242) passes through the inner cavity of the second lifting plate (241) and abuts against the top of the inner cavity of the base (21), the outer wall of the second screw rod (242) is fixedly connected to the second driven gear (243), the bottom of the support plate of the four-axis turntable (1) is rotatably connected to the second rotating rod (244), one end of the second rotating rod (244) passes through the bottom of the base (21) and is fixedly connected to the second driving gear (245), and the second driving gear (245) is respectively meshed with the two second driven gears (243).

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