A welding auxiliary device for pump shell machining

Abstract

The utility model relates to water pump casing processing treatment technical field especially a kind of welding auxiliary device for pump shell processing.The utility model includes workbench, fixed mechanism, cold compress mechanism and installation mechanism;The cold compress mechanism includes the automatic reset component of fixedly arranged in the fixed mechanism one side of workbench upper surface, the limiting component of being inserted in the slot and the wet cotton cloth of one end and the automatic reset component fixed other end and the limiting component fixed;The automatic reset component includes the first linear driver of vertical fixedly arranged in the fixed mechanism one side of workbench upper surface, the installation box of fixedly arranged in linear driver telescopic end, the fixed rod of vertical installation in installation box rotatable and the disc spring of a pair of symmetrical sleeve in fixed rod end outside;Every disc spring inner end is fixedly connected with fixed rod end outside, and its outer end is fixedly connected with the corresponding side wall of installation box.This device solves the problem that existing device cannot automatically cold compress pump shell welding place after cold welding.

Description

Technical Field

[0001] This utility model relates to the field of pump housing processing technology, and in particular to a welding auxiliary device for pump housing processing. Background Technology

[0002] A pump is a machine that transports or pressurizes fluids. It transfers the mechanical energy of a prime mover or other external energy to a liquid, increasing the liquid's energy. Pumps are mainly used to transport liquids such as water, oil, acid and alkali solutions, emulsions, suspensions, and liquid metals. They can also transport liquid-gas mixtures and liquids containing suspended solids. There are two methods for welding cast iron pump casings: hot welding and cold welding.

[0003] The existing equipment has the following problems when using cold welding to cold weld the pump casing:

[0004] 1. Currently, when using cold welding to weld pump casings, in order to control the temperature of the heat-affected zone to ≤200℃ as much as possible and avoid overheating of the base material to produce white cast iron, the weld needs to be cooled with a wet cotton cloth immediately after each section is welded. The existing equipment does not have a mechanism to automatically apply cold compresses to the welded parts of the pump casing, which increases the workload of operators when welding the pump casing and reduces welding efficiency.

[0005] 2. The wet cotton cloth applied after the pump casing is cooled cannot be automatically recycled. Operators need to remove it from the outside of the pump casing for storage, which increases the workload of operators when welding the pump casing and reduces welding efficiency. Utility Model Content

[0006] In order to solve the above problems, the purpose of this utility model is to provide a welding auxiliary device for pump casing processing, which solves the problem that existing devices cannot automatically apply cold compresses to the welded joint of the pump casing after cold welding.

[0007] To achieve the above objectives, the present invention adopts the following technical solution:

[0008] A welding auxiliary device for pump casing processing includes a worktable, a fixing mechanism disposed on the upper surface of the worktable for fixing the pump casing, a cooling mechanism disposed on one side of the upper surface of the worktable and cooperating with the fixing mechanism for cooling the welded joint of the pump casing, and a mounting mechanism disposed on the upper surface of the worktable for mounting a welding machine; the fixing mechanism includes a rotating suction cup rotatably embedded on the upper surface of the worktable, an adsorption assembly disposed below the worktable and communicating with the rotating suction cup, and a driving assembly disposed within the worktable for driving the rotating suction cup to rotate; the upper surface of the rotating suction cup is provided with a plurality of limiting slots spaced apart along its diameter; the cooling mechanism includes a component fixed on one side of the fixing mechanism on the upper surface of the worktable. The device includes an automatic reset component, a limiting component inserted into a slot, and a wet cotton cloth with one end fixed to the automatic reset component and the other end fixed to the limiting component. The automatic reset component includes a first linear actuator vertically fixed to one side of the fixing mechanism on the upper surface of the workbench, a mounting box fixed to the telescopic end of the linear actuator, a circumferentially rotatable fixing rod vertically installed in the mounting box, and a pair of symmetrical disc springs sleeved on the outer side of the end of the fixing rod. The inner end of each disc spring is fixedly connected to the outer side of the end of the fixing rod, and its outer end is fixedly connected to the corresponding side wall of the mounting box. One end of the wet cotton cloth is fixedly connected to the outer side of the limiting component, and the other end is spirally wound around the outer side wall of the fixing rod and fixedly connected to the fixing rod.

[0009] More preferably, the limiting component includes a limiting rod vertically inserted into the limiting groove and an mounting sleeve movably sleeved on the outside of the limiting rod and interference-fitted with the limiting rod; the end of the wet cotton cloth is fixedly connected to the outer wall of the mounting sleeve.

[0010] More preferably, the adsorption assembly includes a suction pump placed on the ground and a connecting pipe fixedly installed inside the workbench and used to connect the rotating suction cup and the suction pump; the rotating suction cup has a cavity inside that communicates with the connecting pipe, and the upper surface of the rotating suction cup has a plurality of adsorption holes that communicate with the cavity.

[0011] More preferably, a receiving groove is provided on the lower part of one side of the rotating suction cup inside the worktable; the driving assembly includes a gear rotatably disposed in the receiving groove, a gear ring that is fixedly sleeved around the bottom of the outer surface of the rotating suction cup and meshes with the gear, and a drive motor fixedly disposed at the bottom of the worktable and whose driving end passes through the worktable and is fixedly connected to the end of the gear shaft.

[0012] More preferably, the mounting mechanism includes a mounting ring covering the rotating suction cup, a plurality of support columns spaced apart and fixed between the mounting ring and the worktable, a second linear actuator fixed to one side of the upper end face of the mounting ring and extending below it through the mounting ring, a fixing block fixed to the telescopic end of the second linear actuator, a third linear actuator horizontally fixed to the inner side of the fixing block, and a mounting base fixed to the telescopic end of the third linear actuator for mounting the welding machine.

[0013] This utility model has the following beneficial effects:

[0014] 1. In this utility model, the cooling mechanism can automatically cool the welded part of the pump casing, eliminating the need for operators to manually cool it with a wet cotton cloth after each section is welded. At the same time, the wet cotton cloth can be automatically retracted under the action of the coil spring, saving the operator the steps of manually removing and storing the wet cotton cloth, greatly reducing the workload of the operator and significantly improving the welding efficiency.

[0015] 2. In this utility model, the drive component can drive the rotating suction cup to rotate, realizing flexible adjustment of the welding angle of the pump casing, which facilitates welding operations in different positions for operators. The mounting sleeve and the limiting rod in the limiting component are interference-fitted, which makes it easy to adjust the connection position of the wet cotton cloth and the limiting component according to actual needs, adapting to the welding cold-applied requirements of different pump casings, and enhancing the flexibility and applicability of the device. Attached Figure Description

[0016] Figure 1 This is a front view of the auxiliary device;

[0017] Figure 2 This is a front sectional view of the auxiliary device;

[0018] Figure 3 This is a top-view cross-sectional diagram of the auxiliary device;

[0019] Figure 4 This is a schematic diagram showing the connection between the fixing rod and the disc spring;

[0020] Figure 5 This is a bottom-view sectional diagram of the installation mechanism.

[0021] Explanation of reference numerals in the attached figures:

[0022] 1. Workbench; 11. Receiving slot; 2. Fixing mechanism; 21. Rotating suction cup; 211. Limiting slot; 212. Cavity; 213. Suction hole; 22. Suction assembly; 221. Suction pump; 222. Connecting pipe; 23. Drive assembly; 231. Gear; 232. Gear ring; 233. Drive motor; 3. Cooling mechanism; 31. Automatic reset assembly; 311. First linear actuator; 312. Mounting box; 313. Fixing rod; 314. Coil spring; 32. Limiting assembly; 321. Limiting rod; 322. Mounting sleeve; 33. Wet cotton cloth; 4. Mounting mechanism; 41. Mounting ring; 42. Support column; 43. Second linear actuator; 44. Fixing block; 45. Third linear actuator; 46. Mounting base. Detailed Implementation

[0023] The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0024] A welding auxiliary device for pump casing processing includes a worktable 1, a fixing mechanism 2 disposed on the upper surface of the worktable 1 for fixing the pump casing, a cooling mechanism 3 disposed on one side of the upper surface of the worktable 1 and cooperating with the fixing mechanism 2 for cooling the welded joint of the pump casing, and a mounting mechanism 4 disposed on the upper surface of the worktable 1 for mounting a welding machine; the fixing mechanism 2 includes a rotating suction cup 21 rotatably embedded on the upper surface of the worktable 1, an adsorption assembly 22 disposed below the worktable 1 and communicating with the rotating suction cup 21, and a driving assembly 23 disposed inside the worktable 1 for driving the rotating suction cup 21 to rotate; the upper surface of the rotating suction cup 21 is provided with a plurality of limiting slots 211 spaced apart along its diameter; the cooling mechanism 3 includes an automatic reset assembly 31 fixed on one side of the fixing mechanism 2 on the upper surface of the worktable 1, and a mounting mechanism 4 for mounting a welding machine; The device includes a limiting component 32 located in the slot and a wet cotton cloth 33, one end of which is fixed to the automatic reset component 31 and the other end of which is fixed to the limiting component 32. The automatic reset component 31 includes a first linear driver 311 vertically fixed to one side of the fixing mechanism 2 on the upper surface of the workbench 1, a mounting box 312 fixed to the telescopic end of the linear driver, a circumferentially rotatable fixing rod 313 vertically installed in the mounting box 312, and a pair of symmetrical coil springs 314 sleeved on the outer side of the end of the fixing rod 313. The inner end of each coil spring 314 is fixedly connected to the outer side of the end of the fixing rod 313, and its outer end is fixedly connected to the corresponding side wall of the mounting box 312. One end of the wet cotton cloth 33 is fixedly connected to the outer side of the limiting component 32, and the other end is spirally wound around the outer side wall of the fixing rod 313 and fixedly connected to the fixing rod 313.

[0025] The cooling mechanism 3 can automatically cool the welded joint of the pump casing, eliminating the need for operators to manually cool it with a wet cotton cloth 33 after each section is welded. At the same time, the wet cotton cloth 33 can be automatically retracted under the action of the coil spring 314, saving operators the steps of manually removing and storing the wet cotton cloth 33, greatly reducing the workload of operators and significantly improving welding efficiency.

[0026] As a possible implementation of this solution, preferably, the limiting component 32 includes a limiting rod 321 vertically inserted into the limiting groove and an installation sleeve 322 movably sleeved on the outside of the limiting rod 321 and interference-fitted with the limiting rod 321; the end of the wet cotton cloth 33 is fixedly connected to the outer wall of the installation sleeve 322; the installation sleeve 322 in the limiting component 32 is interference-fitted with the limiting rod 321, which facilitates adjusting the connection position of the wet cotton cloth 33 and the limiting component 32 according to the actual situation, and improves the flexibility of the device.

[0027] As a possible implementation of this solution, preferably, the adsorption assembly 22 includes a suction pump 221 placed on the ground and a connecting pipe 222 fixedly installed inside the workbench 1 and used to connect the rotating suction cup 21 and the suction pump 221; the rotating suction cup 21 has a cavity 212 inside that communicates with the connecting pipe 222, and a plurality of adsorption holes 213 on the upper surface of the rotating suction cup 21 that communicate with the cavity 212; when the suction pump 221 in the adsorption assembly 22 is started, the suction pump 221 pumps air from the cavity 212 inside the rotating suction cup 21 through the connecting pipe 222, so that the adsorption holes 213 on the upper surface of the rotating suction cup 21 generate suction, thereby firmly fixing the pump casing to the rotating suction cup 21, thus completing the fixing of the pump casing.

[0028] As a possible implementation of this solution, preferably, a receiving groove 11 is provided on the lower part of one side of the rotating suction cup 21 inside the workbench 1; the driving assembly 23 includes a gear 231 rotatably disposed in the receiving groove 11, a toothed ring 232 that is fixedly sleeved around the bottom of the outer surface of the rotating suction cup 21 and meshes with the gear 231, and a driving motor 233 fixedly disposed at the bottom of the workbench 1 and whose driving end passes through the workbench 1 and is fixedly connected to the shaft end of the gear 231; when the driving motor 233 in the driving assembly 23 is started, the driving motor 233 drives the gear 231 to rotate, the gear 231 meshes with the toothed ring 232 at the bottom of the rotating suction cup 21, thereby driving the rotating suction cup 21 to rotate, and then driving the pump housing and the limiting rod 321 to rotate.

[0029] As a possible implementation of this solution, preferably, the mounting mechanism 4 includes a mounting ring 41 covering the rotating suction cup 21, a plurality of support columns 42 fixed at intervals between the mounting ring 41 and the worktable 1, a second linear actuator 43 fixed to one side of the upper end face of the mounting ring 41 and extending below it after its telescopic end passes through the mounting ring 41, a fixing block 44 fixed to the telescopic end of the second linear actuator 43, a third linear actuator 45 horizontally fixed to the inner side of the fixing block 44, and a mounting base 46 fixed to the telescopic end of the third linear actuator 45 for mounting the welding machine; the second linear actuator 43 can adjust the vertical position of the welding machine, and the third linear actuator 45 can adjust the horizontal position of the welding machine, so that the welding machine can accurately align with the welding part and ensure the welding quality.

[0030] The general working principle of this device is as follows:

[0031] When using the welding auxiliary device for processing the pump casing, first place the pump casing on the rotating suction cup 21, start the suction pump 221 in the suction assembly 22, the suction pump 221 pumps air into the cavity 212 in the rotating suction cup 21 through the connecting pipe 222, so that the suction holes 213 on the upper surface of the rotating suction cup 21 generate suction force, thereby firmly fixing the pump casing on the rotating suction cup 21, thus completing the fixing of the pump casing.

[0032] Next, the cooling mechanism 3 is adjusted according to the welding position of the pump casing. At the same time, the vertical position of the welding machine can be adjusted by the second linear actuator 43, and the horizontal position of the welding machine can be adjusted by the third linear actuator 45, so that the welding machine can accurately align with the welding part and ensure the welding quality.

[0033] Then, the limiting rod 321 in the limiting assembly 32 is inserted into the appropriate limiting slot 211 on the rotating suction cup 21. Since one end of the wet cotton cloth 33 is fixed to the mounting sleeve 322 of the limiting assembly 32, and the other end is wrapped around the fixing rod 313 of the automatic reset assembly 31, when the drive motor 233 in the drive assembly 23 is started, the drive motor 233 drives the gear 231 to rotate. The gear 231 meshes with the gear ring 232 at the bottom of the rotating suction cup 21, thereby driving the rotating suction cup 21 to rotate, so that the pump housing rotates to the welding machine for welding. At this time, the limiting assembly 32 will be pulled simultaneously, and the wet cotton cloth 33 will be pulled out from the fixing rod 313. When the pump housing welding point rotates to the initial position, the wet cotton cloth 33 can cover the pump housing welding point, thereby achieving a cold compress effect.

[0034] After the cold compress is completed, the operator does not need to manually remove the wet cotton cloth 33, because the coil spring 314 has a reset capability. Under its elastic force, the fixing rod 313 will rotate in the opposite direction, re-wrap the wet cotton cloth 33 around the fixing rod 313, realizing the automatic recycling of the wet cotton cloth 33, reducing the workload of the operator and improving the welding efficiency.

[0035] The above description is only a specific embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural transformations made based on the contents of this utility model specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. A welding aid for pump housing machining, characterized by: It includes a workbench (1), a fixing mechanism (2) located on the upper surface of the workbench (1) and used to fix the pump casing, a cold application mechanism (3) located on one side of the upper surface of the workbench (1) and cooperating with the fixing mechanism (2) to apply cold application to the welded part of the pump casing, and an installation mechanism (4) located on the upper surface of the workbench (1) and used to install the welding machine. The fixing mechanism (2) includes a rotating suction cup (21) rotatably embedded on the upper surface of the workbench (1), an adsorption assembly (22) located below the workbench (1) and communicating with the rotating suction cup (21), and a driving assembly (23) located inside the workbench (1) and used to drive the rotating suction cup (21) to rotate. The upper surface of the rotating suction cup (21) is provided with a plurality of limiting slots (211) spaced apart along its diameter; The cold compress mechanism (3) includes an automatic reset component (31) fixed on one side of the fixing mechanism (2) on the upper surface of the workbench (1), a limiting component (32) inserted into the slot, and a wet cotton cloth (33) with one end fixed to the automatic reset component (31) and the other end fixed to the limiting component (32). The automatic reset assembly (31) includes a first linear actuator (311) vertically fixed to one side of the fixing mechanism (2) on the upper surface of the workbench (1), a mounting box (312) fixed to the telescopic end of the linear actuator, a circumferentially rotatable fixing rod (313) vertically installed in the mounting box (312), and a pair of symmetrical coil springs (314) sleeved on the outer side of the end of the fixing rod (313). The inner end of each coil spring (314) is fixedly connected to the outer side of the end of the fixing rod (313), and its outer end is fixedly connected to the corresponding side wall of the mounting box (312); One end of the wet cotton cloth (33) is fixedly connected to the outer side of the limiting component (32), and the other end is spirally wound around the outer side wall of the fixing rod (313) and fixedly connected to the fixing rod (313).

2. The welding aid for pump housing machining as claimed in claim 1, wherein: The limiting component (32) includes a limiting rod (321) vertically inserted into the limiting groove and an installation sleeve (322) movably sleeved on the outside of the limiting rod (321) and interference fit with the limiting rod (321); the end of the wet cotton cloth (33) is fixedly connected to the outer wall of the installation sleeve (322).

3. The welding aid for pump housing machining as claimed in claim 1 wherein: The adsorption assembly (22) includes a suction pump (221) placed on the ground and a connecting pipe (222) fixedly installed in the workbench (1) and used to connect the rotating suction cup (21) and the suction pump (221); the rotating suction cup (21) has a cavity (212) inside that communicates with the connecting pipe (222), and the upper surface of the rotating suction cup (21) has a plurality of adsorption holes (213) communicating with the cavity (212).

4. The welding aid device for machining a pump housing according to claim 1, characterized in that: The workbench (1) has a receiving groove (11) on the lower part of one side of the rotating suction cup (21); the drive assembly (23) includes a gear (231) rotatably disposed in the receiving groove (11), a gear ring (232) fixedly sleeved around the bottom of the outer surface of the rotating suction cup (21) and meshing with the gear (231), and a drive motor (233) fixedly disposed at the bottom of the workbench (1) and whose drive end passes through the workbench (1) and is fixedly connected to the shaft end of the gear (231).

5. The welding aid device for machining a pump housing according to claim 1, characterized in that: The mounting mechanism (4) includes a mounting ring (41) covering the rotating suction cup (21), a number of support columns (42) fixed at intervals between the mounting ring (41) and the worktable (1), a second linear actuator (43) fixed on one side of the upper end face of the mounting ring (41) and whose telescopic end passes through the mounting ring (41) and extends to its lower side, a fixing block (44) fixed on the telescopic end of the second linear actuator (43), a third linear actuator (45) horizontally fixed on the inner side of the fixing block (44), and a mounting base (46) fixed on the telescopic end of the third linear actuator (45) for mounting the welding machine.

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