阅读说明：本技术 一种泵体内外表面局部铸造缺陷修补优化方法 (Method for repairing and optimizing local casting defects on inner surface and outer surface of pump body ) 是由 郭东东 姚孝明 于 2019-09-20 设计创作，主要内容包括：本发明公开了一种泵体内外表面局部铸造缺陷修补优化方法,涉及泵体加工设备技术领域,包括以下几个步骤：S1、泵体外观检测,对泵体的外表面检测采用人工手持泵体反复旋转,对泵体的外表面进行肉眼观察；筛选出泵体外表面存在空洞、裂缝的泵体。S2、分开存放,将步骤S1中表面存在空洞、裂缝的泵体与表面完好的泵体进行分开存放,等待后期进行缺陷修复；S3、泵体内腔检测,对泵体的内表面采用密封检测装置向泵体流道内充入流体,密封5-10S。本发明通过滑块与滑槽的滑动配合连接,通过拨杆推动滑块在滑槽内平稳移动,提高泵体在滑块顶部的放置平稳性,提高泵体在送料以及返程过程中的安装牢固性。(The invention discloses a method for repairing and optimizing local casting defects on the inner and outer surfaces of a pump body, which relates to the technical field of pump body processing equipment and comprises the following steps: s1, detecting the appearance of the pump body, namely, manually holding the pump body to repeatedly rotate the outer surface of the pump body, and carrying out visual observation on the outer surface of the pump body; and screening out the pump body with the cavity and the crack on the outer surface of the pump body. S2, separately storing, namely, separately storing the pump body with the cavity and the crack on the surface and the pump body with the intact surface in the step S1, and waiting for later-stage defect repair; and S3, detecting the inner cavity of the pump body, filling fluid into the flow channel of the pump body by adopting a sealing detection device on the inner surface of the pump body, and sealing for 5-10 seconds. According to the invention, the sliding block is connected with the sliding groove in a sliding fit manner, and the shifting lever pushes the sliding block to move stably in the sliding groove, so that the placing stability of the pump body on the top of the sliding block is improved, and the installation firmness of the pump body in the feeding and returning processes is improved.)

1. A method for repairing and optimizing local casting defects of the inner surface and the outer surface of a pump body is characterized by comprising the following steps:

s1), detecting the appearance of the pump body, namely, manually holding the pump body to repeatedly rotate the outer surface of the pump body, and carrying out visual observation on the outer surface of the pump body; screening out the pump body with the cavity and the crack on the outer surface of the pump body;

s2), separately storing, namely, separately storing the pump body with the cavity and the crack on the surface in the step (S1) and the pump body with the intact surface, and waiting for later-stage defect repair;

s3), detecting the inner cavity of the pump body, filling fluid into the flow channel of the pump body by adopting a sealing detection device on the inner surface of the pump body, sealing for 5-10S, observing whether the outer surface of the pump body leaks, and screening out the pump body with a cavity and a crack in the flow channel of the pump body;

s4), separately storing, namely, separately storing the pump body with the cavity and crack in the pump body flow channel screened in the step (S3) and the intact pump body, and waiting for later-stage defect repair;

s5), repairing the defects, namely, performing filling repair on the pump body stored in the step (S2) and the step (S4) to enable the inner and outer surfaces of the pump body to be flat;

wherein, the sealing detection device in the above-mentioned step includes: the sealing device comprises a supporting plate (1), wherein a top supporting plate (2) is arranged at the top end of the supporting plate (1), the top supporting plate (2) is horizontally arranged, a sealing clamp (4) is fixed at the bottom of the top supporting plate (2), and a plurality of sealing discs (17) which are distributed at equal intervals are arranged at the bottom end of the sealing clamp (4);

the bottom end of the supporting plate (1) is provided with a bottom supporting plate (3), the bottom supporting plate (3) is horizontally placed, a sliding seat (5) is fixed to the top end of the bottom supporting plate (3), a sliding groove (14) is formed in the top end of the sliding seat (5), a sliding block (7) is installed in the sliding groove (14), the sliding block (7) is embedded in the sliding groove (14) in a sliding fit mode, a clamping device (6) matched with the number of sealing discs (17) is arranged at the top end of the sliding block (7), each sealing disc (17) is provided with a first sealing disc (404) and a second sealing disc (405), and the first sealing disc (404) and the second sealing disc (405) are symmetrically arranged on two sides of the clamping device (6);

the bottom of the sliding block (7) is provided with a motor (16), the bottom of the motor (16) is provided with a motor support, the motor support is fixedly arranged on the ground, the motor (16) extends out of an output shaft, the tail end of the output shaft is fixedly provided with a driving block (13), and the outer circular surface of the driving block (13) is provided with a through round hole;

the bottom of slider (7) is provided with driving lever (8) perpendicular with slider (7), slidable second slider (9) is installed to the outer wall of driving lever (8), the outer wall of second slider (9) articulates there is connecting block (10), connecting block (10) set up the top at guide arm (12), guide arm (12) set up to cylindrical rod structure, install in the round hole of drive block (13) through sliding fit mode guide arm (12).

2. The method for repairing and optimizing the local casting defects of the inner surface and the outer surface of the pump body according to claim 1, wherein the method comprises the following steps: the sealing clamp (4) comprises a fixed support plate (401) and a movable support plate (402), the fixed support plate (401) is fixedly mounted at the bottom end of the top support plate (2), the fixed support plate (401) is a square plate, a through round hole is formed in the middle of the fixed support plate (401), and the second sealing discs (405) are fixed at the bottom end of the fixed support plate (401) at equal intervals;

the outer wall of the fixed support plate (401) and the bottom end close to the top support plate (2) are hinged with a movable support plate (402), the movable support plate (402) is a square plate, the first sealing discs (404) are fixed at the bottom end of the movable support plate (402) at equal intervals, and the movable support plate (402) and the fixed support plate (401) are symmetrically distributed on two sides of the clamping device (6);

the inner side wall of the movable support plate (402) is hinged with a first connecting rod (403), the other end of the first connecting rod (403) is hinged with a second connecting rod (406), the other end of the second connecting rod (406) penetrates through a round hole in the fixed support plate (401), the end part of the other end of the second connecting rod (406) is provided with an adjusting nut (408), the adjusting nut (408) is fixedly connected with a piston rod of a hydraulic cylinder (15), and the hydraulic cylinder (15) is fixed on the outer side of the support plate (1).

3. The method for repairing and optimizing the local casting defects on the inner surface and the outer surface of the pump body according to any one of claims 1 and 2, wherein the method comprises the following steps: the first sealing disk (404) comprises a first sealing disk body (4041), the first sealing disk body (4041) is disc-shaped, a step groove is formed in the outer end of the first sealing disk body (4041), a first boss (4044) is arranged at the circle center of the step groove, and a fluid sealing gasket (4043) is installed in the step groove;

the inner end of the first sealing disk body (4041) is provided with a connecting shaft rod (4042), the connecting shaft rod (4042) is hinged to the end of the supporting shaft rod (4045), the other end of the supporting shaft rod (4045) is embedded into a pressure spring hole (4047) in a sliding fit mode, the pressure spring hole (4047) is formed in the movable support plate (402), and the other end of the supporting shaft rod (4045) is located in the pressure spring hole (4047) and is provided with a pressure spring (4046);

4. the method for repairing and optimizing the local casting defects of the inner surface and the outer surface of the pump body according to claim 3, wherein the method comprises the following steps: the top end of the connecting shaft lever (4042) is provided with an arc surface with a semi-sphere structure, the arc surface of the connecting shaft lever (4042) is provided with a connecting hole (40422), and the bottom of the connecting hole (40422) is provided with an arc-shaped sliding hole (40421);

the end part of the supporting shaft lever (4045) is provided with an arc hole (40451), and the center position of the inner wall of the arc hole (40451) is provided with a hanging rod (40452);

the hanging rod (40452) penetrates through the connecting hole (40422) and extends into the sliding hole (40421), stop blocks are arranged on two sides of the top end of the hanging rod (40452), and the stop blocks are embedded into the sliding hole (40421).

5. The method for repairing and optimizing the local casting defects on the inner surface and the outer surface of the pump body according to any one of claims 1 and 2, wherein the method comprises the following steps: second sealed dish (405) includes second sealed dish body (4051), second sealed dish body (4051) sets up to discoid, second sealed dish body (4051) is fixed on the bottom inside wall of fixed extension board (401), the inside of fixed extension board (401) is provided with converging chamber (4052), and the lateral wall of fixed extension board (401) is provided with inserts mouth (407), the outer end of second sealed dish body (4051) is provided with the step groove, the centre of a circle position in step groove is provided with second boss (4053), the top centre of a circle position of second boss (4053) is provided with injection nozzle (4054), injection nozzle (4054) is in the inside of second boss (4053) is provided with chamber way intercommunication converging chamber (4052), converging chamber (4052) and access mouth (407) intercommunication.

6. The method for repairing and optimizing the local casting defects of the inner surface and the outer surface of the pump body according to claim 1, wherein the method comprises the following steps: each clamping device (6) all includes first clamping part (601), first clamping part (601) sets up to the semicircle ring structure, the top symmetry of first clamping part (601) articulates there is second clamping part (602), second clamping part (602) set up to the circular arc block structure, the outer wall of second clamping part (602) and the top symmetry that is located first clamping part (601) are provided with bent plate (603), the bottom of bent plate (603) is fixed with supporting spring (604), the other end of supporting spring (604) is fixed on the outer wall of first clamping part (601).

Technical Field

The invention relates to the technical field of pump body processing equipment, in particular to a method for repairing and optimizing local casting defects on the inner surface and the outer surface of a pump body.

Background

Water pump uses extensively in daily life, and traditional water pump body adopts cast iron material to make mostly, but the water pump corrosion resistance that the cast iron was made is poor, in some chemical industry environment very much, is corroded easily and invades badly. Stainless steel is a common corrosion-resistant material, and a water pump made of the stainless steel is corrosion-resistant and long in service life.

At present, a water pump body investment casting process disclosed by patent number CN201711484669.2, its technical scheme main points are: the method comprises the processes of wax film forming, shell forming and pump body casting forming. The pump body wax pattern forming mold is divided into a wax pattern forming mold A and a wax pattern forming mold B which are respectively used for forming a half mold A and a half mold B of the pump body wax pattern, the formed wax pattern is high in quality, the formed shell is good in hardness and air permeability, and the defect rate of a formed casting is low; the pump body of the stainless steel water pump processed by the method has small size deformation, good processing size precision of the pump body, high surface smoothness and long service life of the pump body.

According to the water pump body investment casting process disclosed by the patent, when the water pump body manufactured by the process is in actual use, cavities and cracks exist on the inner surface and the outer surface of the pump body, the pump body is required to be screened, and unqualified pump bodies are selected to ensure the normal work of the water pump.

Currently, an oil pump detection device assembly disclosed in patent No. CN201810014324.9 includes a rectangular basin-shaped workbench, a clamping device and a hydraulic system; the rectangular basin-shaped workbench is high in the periphery and low in the middle, and is provided with a flow guide cover inclined towards the inner side of the workbench, and the flow guide cover prevents test oil from flowing outwards along the workbench; the rectangular basin-shaped workbench is provided with a supporting base; the clamping device comprises a horizontal clamping device and a vertical clamping device; the method comprises the following steps: vacuum degree sensor, pressure sensor, flow sensor, current sensor and digital quantity input device. The oil pump detection device is simple in structure and convenient to operate, can quickly detect the vacuum degree, the closing pressure, the flow and the working current of the oil pump, improves the detection efficiency and the detection precision, reduces the labor intensity of workers and reduces the detection cost.

The pump body detection device disclosed in the patent still has some shortcomings in the actual detection process, and the specific shortcomings are as follows:

firstly, the pump body detection device is in the actual working operation process, the pump body is on the conveying device, the feeding speed and the return speed are too slow when the pump body is conveyed to the detection device, and the detection efficiency is low.

And secondly, the pump body detection device is arranged on the feeding device in the actual working and running process, and the feeding device easily enables the pump body to be inclined or even fall off in the feeding and returning processes, so that the pump body is inaccurate in detection.

Disclosure of Invention

Aiming at the problems in the prior art, the invention aims to provide a method for repairing and optimizing local casting defects on the inner surface and the outer surface of a pump body, and solves the technical problems of low pump body detection efficiency and inaccurate pump body detection.

The technical problem to be solved by the invention is realized by adopting the following technical scheme: a method for repairing and optimizing local casting defects of the inner surface and the outer surface of a pump body comprises the following steps:

s1, detecting the appearance of the pump body, namely, manually holding the pump body to repeatedly rotate the outer surface of the pump body, and carrying out visual observation on the outer surface of the pump body; and screening out the pump body with the cavity and the crack on the outer surface of the pump body.

S2, separately storing, namely, separately storing the pump body with the cavity and the crack on the surface and the pump body with the intact surface in the step S1, and waiting for later-stage defect repair;

s3, detecting the inner cavity of the pump body, filling fluid into the flow channel of the pump body by adopting a sealing detection device on the inner surface of the pump body, sealing for 5-10S, observing whether the outer surface of the pump body leaks, and screening out the pump body with a cavity and a crack in the flow channel of the pump body;

s4, separately storing, namely, separately storing the pump body with the cavity and the crack in the pump body flow channel screened in the step S3 and the intact pump body, and waiting for later-stage defect repair;

s5, repairing the defects, namely, repairing the pump body stored in the step S2 and the step S4 by filling materials to enable the inner surface and the outer surface of the pump body to be smooth;

wherein, the sealing detection device in the above-mentioned step includes: the sealing device comprises a supporting plate, a sealing clamp and a sealing device, wherein a top supporting plate is arranged at the top end of the supporting plate and is horizontally arranged, the bottom of the top supporting plate is fixedly provided with the sealing clamp, and a plurality of sealing discs which are distributed at equal intervals are arranged at the bottom end of the sealing clamp;

the bottom end of the supporting plate is provided with a bottom supporting plate, the bottom supporting plate is horizontally placed, a sliding seat is fixed at the top end of the bottom supporting plate, a sliding groove is formed in the top end of the sliding seat, a sliding block is installed in the groove of the sliding groove and is embedded in the groove of the sliding groove in a sliding fit mode, clamping devices matched with the number of the sealing discs are arranged at the top end of the sliding block, each sealing disc is provided with a first sealing disc and a second sealing disc, and the first sealing disc and the second sealing disc are symmetrically arranged on two sides of each clamping device;

the bottom of the sliding block is provided with a motor, the bottom of the motor is provided with a motor support, the motor support is fixedly arranged on the ground, the motor extends out of an output shaft, the tail end of the output shaft is fixedly provided with a driving block, and the outer circular surface of the driving block is provided with a through circular hole;

the bottom of slider is provided with the driving lever perpendicular with the slider, slidable second slider is installed to the outer wall of driving lever, the outer wall of second slider articulates there is the connecting block, the connecting block sets up the top at the guide arm, the guide arm sets up to cylindrical rod structure, the guide arm passes through the sliding fit mode and installs in the round hole of drive block.

As a preferred technical scheme of the invention, in order to improve the clamping force on the pump body and improve the sealing performance on two ends of the pump body, the sealing fixture comprises a fixed support plate and a movable support plate, the fixed support plate is fixedly arranged at the bottom end of a top support plate, the fixed support plate is a square plate, a through round hole is formed in the middle of the fixed support plate, and the second sealing discs are fixed at the bottom end of the fixed support plate at equal intervals; the outer wall of the fixed support plate and the bottom end close to the top support plate are hinged with a movable support plate, the movable support plate is a square plate, the first sealing discs are fixed at the bottom end of the movable support plate at equal intervals, and the movable support plate and the fixed support plate are symmetrically distributed on two sides of the clamping device; the inner side wall of the movable support plate is hinged with a first connecting rod, the other end of the first connecting rod is hinged with a second connecting rod, the other end of the second connecting rod penetrates through a round hole in the fixed support plate, an adjusting nut is arranged at the end part of the other end of the second connecting rod, the adjusting nut is fixedly connected with a piston rod of a hydraulic cylinder, and the hydraulic cylinder is fixed on the outer side of the support plate.

As a preferred technical solution of the present invention, in order to improve the connection sealing performance of the sealing disk to two ends of the pump body, the first sealing disk includes a first sealing disk body, the first sealing disk body is disc-shaped, a stepped groove is provided at an outer end of the first sealing disk body, a first boss is provided at a center of the stepped groove, and a fluid sealing gasket is installed in the stepped groove; the inner end of the first sealing disk body is provided with a connecting shaft rod, the connecting shaft rod is hinged to the end part of a supporting shaft rod, the other end of the supporting shaft rod is embedded into a pressure spring hole in a sliding fit mode, the pressure spring hole is formed in the movable support plate, and a pressure spring is arranged in the pressure spring hole at the other end of the supporting shaft rod;

the top end of the connecting shaft lever is provided with an arc surface with a semi-sphere structure, the arc surface of the connecting shaft lever is provided with a connecting hole, and the bottom of the connecting hole is provided with an arc-shaped sliding hole; the end part of the supporting shaft lever is provided with an arc hole, and the central position of the inner wall of the arc hole is provided with a hanging rod; the hanging rod penetrates through the connecting hole and extends into the sliding hole, and the two sides of the top end of the hanging rod are provided with the stop blocks which are embedded into the sliding hole.

As a preferred technical solution of the present invention, in order to facilitate filling of a fluid detection medium into a pump body, so that the detection operation is simpler and easier, and the sealing performance during detection in the pump body is improved, the second sealing disk includes a second sealing disk body, the second sealing disk body is configured in a disk shape, the second sealing disk body is fixed on the inner side wall of the bottom of a fixed support plate, a junction chamber is arranged inside the fixed support plate, the outer side wall of the fixed support plate is provided with an inlet, the outer end of the second sealing disk body is provided with a step groove, a second boss is arranged at the circle center position of the step groove, a flow injection nozzle is arranged at the circle center position of the top end of the second boss, a chamber channel is arranged inside the second boss and is communicated with the junction chamber, and the junction chamber is communicated with the inlet.

As a preferred technical solution of the present invention, in order to improve clamping and locking of the body, each of the clamping devices includes a first clamping portion, the first clamping portion is configured as a semicircular ring structure, the top end of the first clamping portion is symmetrically hinged with a second clamping portion, the second clamping portion is configured as an arc block structure, the outer wall of the second clamping portion and the top end of the first clamping portion are symmetrically provided with a bent plate, the bottom of the bent plate is fixed with a supporting spring, and the other end of the supporting spring is fixed on the outer wall surface of the first clamping portion.

Compared with the prior art, the invention at least comprises the following beneficial effects:

the invention drives the guide rod to rotate by arranging the motor at the bottom of the sliding block, the guide rod and the deflector rod slide up and down, so that the intermittent time of the sliding block at the starting point and the ending point is the same, the sliding block is stirred by the motor between the starting point and the ending point, the deflector rod is pushed to move rapidly in the horizontal direction, and the feeding and returning speed of a pump body is improved.

The sliding block is connected with the sliding groove in a sliding fit mode, the shifting lever pushes the sliding block to move stably in the sliding groove, the placing stability of the pump body on the top of the sliding block is improved, and the installation firmness of the pump body in the feeding and returning processes is improved.

And the spring absorbs the pressure applied between the connecting block and the driving block, and stores energy and absorbs the pressure generated between the connecting block and the driving block, so that the vibration generated between the sliding block and the surface of the sliding seat is eliminated, the rigid impact generated by the sliding block on the surface of the sliding seat is reduced, and the moving stability of the sliding block in the sliding groove is improved.

The motor is arranged to drive the guide rod to rotate, the deflector rod is driven to horizontally slide left and right through the rotation of the guide rod, so that the intervals of the deflector rod on the two sides of the motor are the same, the interval time of the pump bodies staying at the positions of the sealing discs is the same, the sealing time of the sealing discs to each batch of pump bodies is favorably kept to be the same, and the detection accuracy of the pump bodies is improved.

Drawings

The invention is further illustrated with reference to the following figures and examples.

FIG. 1 is a schematic view of the overall appearance structure of the seal detection device according to the present invention;

FIG. 2 is a right side view of the seal detection apparatus of the present invention;

FIG. 3 is a schematic structural view of a first seal disk of the present invention;

FIG. 4 is a schematic view of the structural connection of the connecting shaft to the supporting shaft according to the present invention;

FIG. 5 is a schematic structural view of a second seal disk of the present invention;

FIG. 6 is a schematic view of a clamping device according to the present invention;

FIG. 7 is a flow chart of the method for optimizing the repair of localized casting defects on the inner and outer surfaces of a pump body according to the present invention;

in the figure: 1. a support plate, 2, a top support plate, 3, a bottom support plate, 4, a sealing jig, 401, a fixed support plate, 402, a movable support plate, 403, a first link, 404, a first sealing disk, 4041, a first sealing disk body, 4042, a connecting shaft, 40421, a sliding hole, 40422, a connecting hole, 4043, a fluid sealing pad, 4044, a first boss, 4045, a supporting shaft, 40451, an arc hole, 40452, a hanging rod, 4046, a compression spring, 4047, a compression spring hole, 405, a second sealing disk, 4051, a second sealing disk body, 4052, a collecting flow chamber, 4053, a second boss, 4054, a pouring nozzle, 406, a second link, 407, an inlet, 408, an adjusting nut, 5, a slider, 6, a clamping device, 601, a first clamping portion, 602, a second clamping portion, 603, a bent plate, 604, a supporting spring, 7, a slider, 8, a lever, 9, a second slider, 10, a connecting block, 11, a spring, 12, a guide bar, 13. a driving block, 14, a sliding chute, 15, a hydraulic cylinder, 16, a motor, 17 and a sealing disc.

Detailed Description

The embodiments of the invention will be described in detail below with reference to the drawings, but the invention can be implemented in many different ways as defined and covered by the claims.

In order to make the technical means, the creation characteristics, the achievement purposes and the effects of the invention easy to understand, the invention is further explained below by combining the specific drawings.

It will be understood that when an element is referred to as being "secured to" another element, it can be on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "left," "right," and similar expressions are used herein for illustrative purposes only and do not represent the only embodiments.