Positioning and clamping mechanism for processing water pump shell

Abstract

The application relates to the technical field of electric water pump processing, and relates to a positioning and clamping mechanism for water pump shell processing, which comprises a machining center external component and a residual material collecting component fixedly installed at the bottom end of the machining center external component. A hydraulic driving machining component is installed on one side of the machining center external component. A machining platform is installed in the machining center external component. An electric water pump material clamping component is installed at the top of the machining platform. The auxiliary sliding clamping rod is pulled along the cross-shaped sliding rail frame by the auxiliary positioning inserting column to move to the electric water pump material position, so that the electric water pump material is quickly clamped, the staff does not need to frequently replace the clamp according to the processing conditions of the electric water pump material, the processing efficiency is improved, and the hole required to be opened in the electric water pump material is aligned with the hole of the lower clamping positioning plate under the pushing of the electric water pump material clamping plate, so that the electric water pump material is further positioned at the base point processing position, and the accuracy of the electric water pump material processing is improved.

Description

Technical Field

[0001] This invention belongs to the field of electric water pump processing technology, specifically relating to a positioning and clamping mechanism for processing water pump housings. Background Technology

[0002] As a core component of industrial automation (such as hydraulic transmission) and home appliances (such as intelligent water heater circulation pumps), the machining precision of electric water pumps directly affects the pump's efficiency (e.g., volumetric efficiency ≥90%), reliability (e.g., seal life ≥100,000 cycles), and noise (e.g., ≤45dB). Traditional water pump manufacturing relies on general-purpose machine tools and manual intervention, which makes it difficult to meet the manufacturing requirements of miniaturization (impeller diameter <50mm), high precision (blade tip clearance ≤0.05mm), and high integration (motor-pump body integration) for electric water pumps.

[0003] Since water pump housings are generally made by metal casting, burrs and a certain amount of residual material are easily generated in the water pump housing due to defects in the mold and lack of casting technology during the casting process. The pump body needs to go through multiple processes of "milling → drilling → deburring", and each process requires re-clamping (if hydraulic clamps are used, the repeatability positioning accuracy is ±0.01mm), which will introduce cumulative errors (total error > ±0.03mm), affecting the final assembly accuracy. In addition, after each processing step, the residual material inside the water pump housing needs to be further cleaned, which is quite troublesome overall.

[0004] Therefore, we propose a positioning and clamping mechanism for machining water pump housings. Summary of the Invention

[0005] The purpose of this invention is to provide a simple and reasonably designed positioning and clamping mechanism for processing water pump housings in order to solve the above-mentioned problems.

[0006] The present invention achieves the above objectives through the following technical solutions:

[0007] A positioning and clamping mechanism for processing a water pump housing includes an external machining center component and a residual material collection component fixedly installed at the bottom of the external machining center component. A hydraulically driven machining component is installed on one side of the external machining center component, a machining platform is installed inside the external machining center component, and an electric water pump material clamping component is installed on the top of the machining platform.

[0008] The external component of the machining center includes a machining center protective frame, and the machining platform includes a material processing table disposed inside the machining center protective frame;

[0009] The electric water pump material clamping assembly includes a motor assembly fixedly installed on the top of the material processing table. A locking and positioning clamping plate is fixedly installed at the output end of the motor assembly. A cross-shaped slide rail frame is fixedly installed on the top of the locking and positioning clamping plate. A gear is rotatably installed on the top of the cross-shaped slide rail frame. A gear ring is meshed with the outer side of the gear. A rotating plate is fixedly sleeved on the inner side of the gear ring. An inclined arc-shaped guide rail is opened through the surface of the rotating plate. An auxiliary positioning pin is slidably installed inside the inclined arc-shaped guide rail. An auxiliary sliding rod is fixedly installed at one end of the auxiliary positioning pin that passes through the rotating plate. The auxiliary sliding rod is slidably installed inside the cross-shaped slide rail frame. The electric water pump material clamping plate is fixedly installed on the top of the auxiliary sliding rod.

[0010] Preferably, the external component of the machining center further includes an operating platform fixedly installed on one side of the machining center protective frame, and two sealed sliding doors are slidably installed on the side of the machining center protective frame facing the operating platform.

[0011] Preferably, the hydraulically driven machining assembly includes a Z-axis transmission rail fixedly installed on the other side of the machining center protective frame, a hydraulic drive platform slidably installed inside the Z-axis transmission rail, a tool changing disc provided on one side of the hydraulic drive platform inside the machining center protective frame, a tool holder fixedly installed at the bottom of the hydraulic drive platform, and a hydraulic pusher fixedly installed between the hydraulic drive platform and the Z-axis transmission rail.

[0012] Preferably, the processing platform includes a Y-axis transposition axis fixedly installed on the top of the waste material collection assembly, an X-axis transposition axis fixedly installed at the top center of the Y-axis transposition axis, and a material processing table fixedly installed at the top center of the X-axis transposition axis.

[0013] Preferably, the electric water pump material clamping plate, auxiliary positioning pin, and inclined arc-shaped guide rail are all in multiple sets, and the multiple sets of electric water pump material clamping plates, auxiliary positioning pins, and inclined arc-shaped guide rails are arranged in a ring about the surface of the rotating plate.

[0014] Preferably, four sets of electric telescopic rods are fixedly installed on the top of the locking and positioning plate, and positioning hollow rings are fixedly installed on the output ends of the four sets of electric telescopic rods.

[0015] Preferably, the top of the positioning hollow ring is bolted to a lower clamping positioning plate, and the lower clamping positioning plate is internally inserted with electric water pump material.

[0016] Preferably, an upper clamping positioning plate is fixedly installed on the top of the locking positioning plate, the upper clamping positioning plate and the lower clamping positioning plate have the same opening diameter, and the upper clamping positioning plate and the lower clamping positioning plate are arranged in a hole-to-hole configuration.

[0017] Preferably, a nut is installed on the bolt at the connection between the inclined arc-shaped guide rail and the auxiliary positioning pin, and an auxiliary motor is fixedly installed between the gear and the cross-shaped slide rail frame.

[0018] Preferably, the diameter between any two sets of electric water pump material clamping plates is normally larger than the diameter of the positioning hollow ring, and the upper clamping positioning plate and the lower clamping positioning plate are detachably configured.

[0019] The beneficial effects of this invention are as follows:

[0020] 1. This invention uses an auxiliary motor to drive a gear to rotate according to processing requirements. The gear meshes with a gear ring, causing a rotating plate to rotate along a locking and positioning plate. This causes the auxiliary sliding rod to move along the cross-shaped slide rail towards the electric water pump material position under the pulling force of the auxiliary positioning pin, thus achieving rapid clamping of the electric water pump material. This avoids the need for operators to frequently change fixtures according to the processing conditions of the electric water pump material, improving processing efficiency. Furthermore, under the push of the electric water pump material clamping plate, the required holes in the electric water pump material are aligned with the holes in the lower clamping and positioning plate, thereby improving the accuracy of electric water pump material processing.

[0021] 2. The present invention drives the locking and positioning plate to rotate through the output end of the motor assembly, so that the opening of the electric water pump material faces downward, and the residual material inside the electric water pump material is cleaned by gravity, thereby avoiding the residual material from having an adverse effect on the processing of the electric water pump material;

[0022] 3. When the tool holder drives the tool to make a hole in the electric water pump material, the tool always passes through the hole in the upper clamping and positioning plate to process the top of the electric water pump material, so that the residual material generated by the electric water pump material will not fly around and avoid injury to the workers. At the same time, the processing position of the electric water pump material is positioned.

[0023] 4. If the bottom of the electric water pump material needs to be milled or deburred, the operator can pass the bottom of the electric water pump material through the upper clamping positioning plate, and the tool holder can process the end of the electric water pump material that passes through the upper clamping positioning plate with a tool. In this way, the mechanism can adapt to different processing surfaces of the electric water pump material, without the need for the operator to frequently disassemble the fixture, thus improving processing efficiency. Attached Figure Description

[0024] Figure 1 This is a 3D view of the overall structure of the electric water pump machining center;

[0025] Figure 2 This is a schematic diagram of the material processing table of the present invention;

[0026] Figure 3 This is a schematic diagram of the structure of the electric water pump material clamping plate of the present invention;

[0027] Figure 4 This is a schematic diagram of the structure of the clamping and positioning plate of the present invention;

[0028] Figure 5 This is a schematic diagram of the structure of the electric water pump material clamping assembly of the present invention;

[0029] Figure 6 yes Figure 5 Enlarged view of region A in the middle;

[0030] Figure 7 This is a schematic diagram of the slide rail frame of the present invention;

[0031] Figure 8 This is a schematic diagram of the X-axis transposition axis of the present invention.

[0032] In the diagram: 1. External components of the machining center; 101. Machining center protective frame; 102. Operating platform; 103. Sealed sliding door; 2. Hydraulic drive machining components; 201. Hydraulic drive table; 202. Tool changing disc; 203. Tool holder; 204. Z-axis transfer track; 205. Hydraulic pusher; 3. Residual material collection components; 4. Machining platform; 401. X-axis transposition axis; 402. Material processing table; 403. Y-axis transposition axis; 5. Electric water pump material clamping assembly; 501, motor assembly; 502, locking and positioning clamping plate; 503, gear ring; 504, auxiliary sliding clamping rod; 505, electric water pump material clamping plate; 506, electric telescopic rod; 507, positioning hollow ring; 508, lower clamping positioning plate; 509, upper clamping positioning plate; 510, inclined arc-shaped guide rail; 511, auxiliary positioning insert; 512, gear; 513, cross-shaped slide rail frame; 514, rotating plate. Detailed Implementation

[0033] The present application will now be described in further detail with reference to the accompanying drawings. It should be noted that the following specific embodiments are only used to further illustrate the present application and should not be construed as limiting the scope of protection of the present application. Those skilled in the art can make some non-essential improvements and adjustments to the present application based on the above application content.

[0034] Example: Please refer to Figure 1A positioning and clamping mechanism for machining a water pump housing includes an external machining center component 1 and a residual material collection component 3 fixedly installed at the bottom of the external machining center component 1. A hydraulically driven machining component 2 is installed on one side of the external machining center component 1. A machining platform 4 is installed inside the external machining center component 1. An electric water pump material clamping component 5 is installed on the top of the machining platform 4. The external machining center component 1 includes a machining center protective frame 101 and an operating platform 102 fixedly installed on one side of the machining center protective frame 101. The side of the machining center protective frame 101 facing the operating platform 102. Two sealed sliding doors 103 are installed. When the electric water pump machining center processes the electric water pump material, the operator can grab the handle of the sealed sliding door 103, causing the sealed sliding door 103 to slide along the track of the machining center protective frame 101. This causes the two sealed sliding doors 103 to be in a closed state. At this time, the inside of the machining center protective frame 101 is isolated from the outside. The residual material generated by the processing of the electric water pump material inside the machining center protective frame 101 will be blocked and fall into the residual material collection component 3, thereby improving the efficiency of processing residual material collection and preventing the operator from being injured by flying residual material.

[0035] Please see Figure 8 The hydraulically driven machining assembly 2 includes a Z-axis transmission rail 204 fixedly installed on the other side of the machining center protective frame 101. A hydraulic drive table 201 is slidably installed inside the Z-axis transmission rail 204. A tool changing disc 202 is provided on one side of the hydraulic drive table 201 inside the machining center protective frame 101. A tool holder 203 is fixedly installed at the bottom of the hydraulic drive table 201. A hydraulic pusher 205 is fixedly installed between the hydraulic drive table 201 and the Z-axis transmission rail 204. The hydraulic pusher 205 drives the hydraulic drive table 201 to move up and down along the track of the Z-axis transmission rail 204 through changes in the internal hydraulic oil. The hydraulic drive table 201 drives the tool... The clamping frame 203 processes the material of the electric pump below along the Z-axis, while the tool changing disc 202 carries various tools for the tool clamping frame 203 to change different tools. The tool clamping frame 203 uses an internal pneumatic component to adsorb and install the tools. The tool changing principle of the tool changing disc 202 is roughly as follows: the CNC system on the machining center controls the tool magazine to locate the target tool according to the equipment machining program instructions. Then, the tool changing disc 202 transmits the instructions to the hydraulic drive table 201 to exchange the tools in the tool clamping frame 203 with the tools in the tool changing disc 202, thereby completing the tool switching. The above is the prior art and will not be described further here.

[0036] Please see Figure 2The processing platform 4 includes a Y-axis shifting shaft 403 fixedly installed on top of the waste material collection assembly 3. An X-axis shifting shaft 401 is fixedly installed at the top center of the Y-axis shifting shaft 403. A material processing table 402 is fixedly installed at the top center of the X-axis shifting shaft 401. The first central sliding block of the X-axis shifting shaft 401 is fixed to the material processing table 402. Both the X-axis shifting shaft 401 and the Y-axis shifting shaft 403 are multi-layer telescopic mechanisms. When the X-axis shifting shaft 401 extends or retracts through its internal hydraulic components, the material processing table 402... 02 As the X-axis shifting shaft 401 extends and retracts along the X-axis, it moves the electric water pump material to a new position. The second central sliding block of the X-axis shifting shaft 401 and the Y-axis shifting shaft 403 are fixedly installed. When the Y-axis shifting shaft 403 extends and retracts through the internal hydraulic components, the X-axis shifting shaft 401 moves along the Y-axis. The material processing table 402 moves the electric water pump material along the Y-axis simultaneously. This, in conjunction with the tool holder 203, is used by the machining center to position and process the processing area on the electric water pump material.

[0037] Please see Figure 5 , Figure 6 , Figure 7The processing platform 4 includes a material processing table 402 set inside the protective frame 101 of the processing center. The electric water pump material clamping assembly 5 includes a motor assembly 501 fixedly installed on the top of the material processing table 402. A locking and positioning clamping plate 502 is fixedly installed at the output end of the motor assembly 501. A cross-shaped slide rail frame 513 is fixedly installed on the top of the locking and positioning clamping plate 502. A gear 512 is rotatably installed on the top of the cross-shaped slide rail frame 513. A gear ring 503 is meshed with the outer side of the gear 512. The inner side of the gear ring 503 is fixedly sleeved. A rotating plate 514 is provided, which is rotatably mounted on the top center of the locking and positioning plate 502. An inclined arc-shaped guide rail 510 is provided through the surface of the rotating plate 514. An auxiliary positioning pin 511 is slidably mounted inside the inclined arc-shaped guide rail 510. An auxiliary sliding rod 504 is fixedly mounted at one end of the auxiliary positioning pin 511 that passes through the rotating plate 514. The auxiliary sliding rod 504 is slidably mounted inside the cross-shaped slide rail frame 513. An electric water pump material clamping plate 505 is fixedly mounted on the top of the auxiliary sliding rod 504. The electric water pump material clamping plate 505, auxiliary positioning pins 511, and inclined arc-shaped guide rails 510 are all in multiple sets, and these multiple sets of electric water pump material clamping plates 505, auxiliary positioning pins 511, and inclined arc-shaped guide rails 510 are arranged in a ring around the surface of the rotating plate 514. Four sets of electric telescopic rods 506 are fixedly installed on the top of the engaging positioning clamping plate 502. A positioning hollow ring 507 is fixedly installed at the output end of the four sets of electric telescopic rods 506. A lower clamping positioning plate 508 is bolted to the top of the positioning hollow ring 507. Due to the electric... The processing steps of the electric water pump are divided into three steps: milling, drilling and deburring. When the electric water pump is in the drilling and deburring stage, the main operation step is to adjust the placement of the electric water pump material. In this application, after the electric water pump completes the milling stage, its bottom shape is arc-shaped and the top shape is similar to the lower clamping positioning plate 508. The drilling step is mainly based on the opening position of the clamping positioning plate 508. Deburring is mainly to process the edge position of the electric water pump. The above is the existing processing technology, which is briefly described here.

[0038] When deburring or drilling the inside of the electric water pump, the operator first selects a lower clamping positioning plate 508 with a suitable diameter according to the diameter of the electric water pump, and uses bolts to install it on the surface of the positioning hollow ring 507, so that the positioning hollow ring 507 and the lower clamping positioning plate 508 are fixedly installed. Then, the arc-shaped part of the electric water pump material is inserted into the interior of the lower clamping positioning plate 508, and the top of the electric water pump material rests on the upper surface of the lower clamping positioning plate 508. Then, the positioning hollow ring 507 is lifted and moved upward by four sets of electric telescopic rods 506, so that the positioning hollow ring 507 is away from the electric water pump material clamping plate 505 below. At this time, the auxiliary motor drives the gear 512 to rotate counterclockwise. The gear 512 drives the rotating plate 514 to rotate along the engaging positioning clamping plate 502 through meshing with the gear ring 503. The auxiliary positioning insert 511 slides along the groove of the inclined arc-shaped guide rail 510. The groove of 10 is inclined towards the center position. The auxiliary positioning pin 511 is then pulled towards the center position by the inclined arc guide rail 510. At this time, the auxiliary sliding rod 504 is pulled along the cross-shaped slide rail frame 513 towards the electric water pump material position by the auxiliary positioning pin 511 until the auxiliary sliding rod 504 drives the electric water pump material clamping plate 505 to fit against the arc surface of the electric water pump material, realizing the rapid clamping of the electric water pump material. Thus, the operator does not need to frequently change the fixture according to the processing conditions of the electric water pump material, which improves the processing efficiency. At the same time, under the push of the electric water pump material clamping plate 505, the top of the electric water pump material slides along the upper surface of the lower clamping positioning plate 508, so that the hole to be opened in the electric water pump material is aligned with the hole in the lower clamping positioning plate 508, further placing the electric water pump material in the base point processing position, thereby improving the processing accuracy of the electric water pump material.

[0039] After installation as described above, the tool holder 203 uses a tool to make holes in the electric water pump material, mill the inside of the electric water pump material, and deburr along the outer and inner edges of the electric water pump material.

[0040] To further explain, the output end of the motor assembly 501 can drive the locking and positioning plate 502 to rotate. After the locking and positioning plate 502 rotates 90 degrees, the opening of the electric water pump material faces downward. At this time, the residual material processed inside the electric water pump material can fall into the interior of the residual material collection assembly 3 by gravity, thereby avoiding the residual material from having an adverse effect on the processing of the electric water pump material.

[0041] Please see Figure 3 and Figure 4The lower clamping positioning plate 508 houses the electric water pump material. The upper clamping positioning plate 509 has the same opening diameter as the lower clamping positioning plate 508, and they are arranged in a hole-to-hole configuration. Nuts are bolted to the connection between the inclined arc-shaped guide rail 510 and the auxiliary positioning pin 511. An auxiliary motor is fixedly installed between the gear 512 and the cross-shaped slide rail frame 513. The diameter between any two sets of electric water pump material clamping plates 505 is normally larger than the diameter of the positioning hollow ring 507. The upper clamping positioning plate 509 and the lower clamping positioning plate 508 are detachable. After the electric water pump material is installed inside the lower clamping positioning plate 508, the operator can manually install the upper clamping positioning plate 509 using bolts. At the top of the clamping and positioning plate 502, the electric telescopic rod 506 drives the lower clamping and positioning plate 508 to move towards the upper clamping and positioning plate 509 via the positioning hollow ring 507. The top surface of the electric water pump material is in contact with the lower surface of the upper clamping and positioning plate 509, so that the top and surface of the electric water pump material are clamped synchronously, which improves the stability of the electric water pump material during processing and reduces the problem of tool bounce from the tool holder 203. At the same time, when the tool holder 203 drives the tool to make a hole in the electric water pump material, the tool always passes through the hole in the upper clamping and positioning plate 509 to process the top of the electric water pump material, so that the residual material generated by the electric water pump material will not fly around, avoiding injury to the workers, and positioning the processing position of the electric water pump material.

[0042] When in use, if the bottom of the electric water pump material needs to be milled or deburred, the operator can pass the bottom of the electric water pump material through the upper clamping positioning plate 509. At this time, the original top position of the electric water pump material is aligned with the hole of the upper clamping positioning plate 509, including the holes on the periphery of the upper clamping positioning plate 509. Then, the electric telescopic rod 506 drives the positioning hollow ring 507 and the lower clamping positioning plate 508 to clamp the original top position of the electric water pump material in both directions, improving the processing stability of the electric water pump material. At this time, the tool holder 203 can process the end of the electric water pump material that passes through the upper clamping positioning plate 509 with the tool. Thus, the mechanism can adapt to different processing surfaces of the electric water pump material, eliminating the need for the operator to frequently disassemble the fixture and improving processing efficiency.

[0043] The above embodiments merely illustrate several implementation methods of the present invention, and their descriptions are relatively specific and detailed, but they should not be construed as limiting the scope of the present invention. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of the present invention, and these all fall within the protection scope of the present invention.

Claims

1. A positioning and clamping mechanism for machining a water pump housing, comprising a machining center external assembly and a residual material collecting assembly fixedly installed at the bottom end of the machining center external assembly, characterized in that: The hydraulic drive processing assembly is mounted on one side of the machining center external assembly, and the processing platform is mounted in the machining center external assembly. The machining center external assembly comprises a machining center protective frame, and the processing platform comprises a material processing table arranged in the machining center protective frame. The electric water pump material clamping assembly comprises a motor assembly fixedly installed on the top of the material processing table, a clamping positioning clamping plate is fixedly installed at the output end of the motor assembly, a cross-shaped sliding rail frame is fixedly installed on the top of the clamping positioning clamping plate, a gear is rotatably installed on the top of the cross-shaped sliding rail frame, a gear ring is engagedly connected to the outer side of the gear, a rotating plate is fixedly sleeved on the inner side of the gear ring, an inclined arc-shaped guide rail is formed through the surface of the rotating plate, an auxiliary positioning plug post is slidably installed in the inclined arc-shaped guide rail, an auxiliary sliding clamping rod is fixedly installed at one end of the auxiliary positioning plug post penetrating through the rotating plate, the auxiliary sliding clamping rod is slidably installed in the cross-shaped sliding rail frame, and an electric water pump material clamping plate is fixedly installed on the top of the auxiliary sliding clamping rod. The electric water pump material clamping plates, the auxiliary positioning plug posts and the inclined arc-shaped guide rails are in multiple groups, and the multiple groups of the electric water pump material clamping plates, the auxiliary positioning plug posts and the inclined arc-shaped guide rails are arranged in an annular state about the surface of the rotating plate. Four groups of electric telescopic rods are fixedly installed on the top of the clamping positioning clamping plate, and positioning hollow rings are fixedly installed at the output ends of the four groups of electric telescopic rods. A lower clamping positioning plate is boltedly connected to the top of the positioning hollow ring, and an electric water pump material is inserted into the lower clamping positioning plate. An upper clamping positioning plate is fixedly installed on the top of the clamping positioning clamping plate, the opening diameters of the upper clamping positioning plate and the lower clamping positioning plate are consistent, and the upper clamping positioning plate and the lower clamping positioning plate are arranged in a hole-to-hole state. A nut is boltedly installed at the connection between the inclined arc-shaped guide rail and the auxiliary positioning plug post, and an auxiliary motor is fixedly installed between the gear and the cross-shaped sliding rail frame. The diameters of every two groups of the electric water pump material clamping plates are greater than the diameter of the positioning hollow ring in a normal state, and the upper clamping positioning plate and the lower clamping positioning plate are arranged in a detachable state.

2. The positioning and clamping mechanism for machining water pump housing according to claim 1, characterized in that: The machining center external assembly further comprises an operation platform fixedly installed on one side of the machining center protective frame, and two sealed sliding doors are slidably installed on the side of the machining center protective frame facing the operation platform.

3. The positioning and clamping mechanism for machining water pump housing according to claim 1, characterized in that: The hydraulic drive processing assembly comprises a Z-axis transmission track fixedly installed on the other side of the machining center protective frame, a hydraulic drive table is slidably installed in the Z-axis transmission track, a tool changing disc is arranged on one side of the hydraulic drive table in the machining center protective frame, a tool clamping frame is fixedly installed at the bottom of the hydraulic drive table, and a hydraulic pushing frame is fixedly installed between the hydraulic drive table and the Z-axis transmission track.

4. The positioning and clamping mechanism for machining water pump housing according to claim 2, characterized in that: The processing platform comprises a Y-axis transposition shaft fixedly installed on the top of the residual material collecting assembly, an X-axis transposition shaft is fixedly installed at the top center of the Y-axis transposition shaft, and the material processing table is fixedly installed at the top center of the X-axis transposition shaft.

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