Pump body multi-hole synchronous tapping device

By improving the clamping mechanism of the multi-hole synchronous tapping device in the pump body, the automatic disassembly and assembly of the tap and tool setting are achieved by using a movable ring and an electric cylinder, which solves the problem of time-consuming and labor-intensive processes in the existing technology and improves production efficiency.

CN224424476UActive Publication Date: 2026-06-30XIANJU YUANZHONG HYDRAULIC MASCH CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
XIANJU YUANZHONG HYDRAULIC MASCH CO LTD
Filing Date
2025-08-11
Publication Date
2026-06-30

AI Technical Summary

Technical Problem

The existing pump body multi-hole synchronous tapping machine requires manual disassembly and assembly of multiple tool holders when changing taps, which is time-consuming and labor-intensive, and the tool setting process of multiple taps is also time-consuming.

Method used

An improved clamping mechanism is adopted, which uses a movable ring and an electric cylinder to realize automatic tap assembly and tool setting. The movable ring pushes the movable ring upward to make the clamping block retract and hold the tap. The tension of the cutting fluid makes the tap adhere to the inner wall of the tool holder, simplifying the assembly and disassembly process. The plate aligns the bottom of the tap to achieve rapid tool setting.

Benefits of technology

It enables quick tap assembly and disassembly and tool setting, reducing manual operation time and improving production efficiency.

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Abstract

This utility model discloses a multi-hole synchronous tapping device for a pump body, including a tap, a clamping block, and a transmission assembly. A tool holder is provided on the outer side of the tap, and a clamping block is rotatably connected to the inner side of the tool holder. A movable ring is slidably connected to the outer side of the tool holder, and a push block is provided at the contact point between the movable ring and the clamping block. The contact surface between the push block and the clamping block is a slope. A movable ring is provided at the bottom of the movable ring, and a mounting base is provided above the tool holder. A second electric cylinder is provided between the mounting base and the movable ring, and a first electric cylinder is provided between the base and the mounting base. This utility model improves the clamping mechanism of the tool holder by using the movable ring to push the movable ring upward, causing the clamping block to retract into the tool holder to clamp the tap. When disassembling or assembling the tap, the second electric cylinder pushes the movable ring downward, and the clamping block loses its lateral thrust and thus loses its clamping force. At this time, all the taps are adsorbed into the inner wall of the tool holder under the tension of the cutting fluid, and the operator can easily disassemble or assemble the tap.
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Description

Technical Field

[0001] This utility model relates to the field of machining equipment technology, and in particular to a pump body multi-hole synchronous tapping device. Background Technology

[0002] The pump body is the core component of the pump, typically made of cast iron, stainless steel, or engineering plastics. It serves as the housing to accommodate internal components such as the impeller and shaft, and to form a fluid passage. Its structure must meet requirements for pressure resistance, sealing, and corrosion resistance. Its main functions include supporting internal parts, maintaining structural stability, guiding fluid flow, and withstanding operating pressure. During pump body manufacturing or repair, tapping is a common machining step, primarily used to create threads on the pump body surface or within flange holes to facilitate the installation of bolts, pipe fittings, or other connections.

[0003] In the production of standard water pumps, in order to ensure processing efficiency, a special tapping machine for multi-hole tapping is used. This machine has multiple rotating tapping parts, and the positions correspond one-to-one with the holes in the pump body. Although it loses its versatility, it can greatly improve production efficiency in mass production.

[0004] The current pump body multi-hole synchronous tapping machine uses the same tool holder for installing taps as the machining center. The tap is clamped by turning the rotating ring at the bottom of the tool holder to reduce the diameter of the tap. In multi-hole synchronous tapping, multiple tool holders need to be manually disassembled and reassembled when changing taps, which is time-consuming and laborious. Furthermore, setting multiple taps is also a problem, as setting them one by one is too time-consuming. Utility Model Content

[0005] To overcome the fact that most pump body multi-hole synchronous tapping machines use the same tool holders for installing taps as those used in machining centers, which clamp the tap by turning the rotating ring at the bottom of the tool holder to reduce the narrowing of the opening, in multi-hole synchronous tapping, multiple tool holders need to be manually disassembled and reassembled when changing taps, which is time-consuming and laborious. Furthermore, setting multiple taps is also a problem, as setting them one by one is too time-consuming.

[0006] The technical solution of this utility model is as follows: a multi-hole synchronous tapping device for a pump body, including a tap, a clamping block, and a transmission assembly. A handle is provided on the outer side of the tap, and a clamping block for holding the tap is rotatably connected to the inner side of the handle. A movable ring is slidably connected to the outer side of the handle, and a push block is provided at the contact point between the movable ring and the clamping block. The contact surface between the push block and the clamping block is a slope. A movable ring is provided at the bottom of the movable ring. A mounting base is provided above the handle, and a drive assembly is provided on the inner side of the mounting base. A second electric cylinder is provided between the mounting base and the movable ring. A base is provided on the outer side of the mounting base, and a first electric cylinder is provided between the base and the mounting base.

[0007] Preferably, a partition plate is provided on the inner side of the mounting base, and a support column is provided at the bottom of the partition plate, with the support column being fixedly connected to the mounting base and the partition plate.

[0008] Preferably, the drive assembly includes a drive motor, a sun gear, planet gears, a ring gear, and a driven gear, with the drive motor positioned above the mounting base.

[0009] Preferably, a sun gear is provided above the partition plate, which is fixedly connected to the output shaft of the drive motor. Planet gears are provided on the outer side of the sun gear, and gear rings are provided on the outer side of the planet gears.

[0010] Preferably, the upper end of the tool holder is provided with a driven gear, and the gear ring passes through the partition plate and meshes with the driven gear.

[0011] Preferably, a second thrust bearing is provided between the movable ring and the movable circle. When the movable circle is too high, the second thrust bearing is rotatably connected to the movable ring. A first thrust bearing is provided between the tool holder and the mounting base. The tool holder is rotatably connected to the mounting base through the first thrust bearing.

[0012] Preferably, the bottom of the tap is provided with a platform for placing the workpiece, and a clamp is set on the platform to position and fix the workpiece during use.

[0013] The beneficial effects of this utility model are:

[0014] 1. When disassembling or assembling taps, the second electric cylinder pushes the movable ring downwards, and the clamping block loses its lateral thrust and thus loses its clamping force. At this time, all taps are adsorbed into the inner wall of the tool holder under the tension of the cutting fluid, and the operator can easily disassemble or assemble the taps.

[0015] 2. When setting the tool, all tool holders can be moved downwards without clamping, and a flat plate can be placed under the tap. The tap should contact the flat plate and retract into the tool holder, so that the bottoms of all taps are aligned. Then, push the movable ring upwards to clamp the tap for quick tool setting. Attached Figure Description

[0016] Figure 1 The diagram shown is a three-dimensional structural schematic of this utility model;

[0017] Figure 2 The diagram shown is a three-dimensional structural schematic of the first electric cylinder of this utility model;

[0018] Figure 3 The diagram shown is a three-dimensional structural schematic of the mounting base of this utility model;

[0019] Figure 4 The diagram shown is a three-dimensional structural schematic of the drive component of this utility model;

[0020] Figure 5 The diagram shown is a three-dimensional structural schematic of the drive component of this utility model.

[0021] Figure 6 The diagram shown is a three-dimensional structural schematic of the knife handle of this utility model;

[0022] Figure 7 The diagram shown is a three-dimensional structural schematic of the movable ring of this utility model;

[0023] Figure 8 The diagram shown is a three-dimensional structural schematic of the clamping block of this utility model.

[0024] Explanation of reference numerals in the attached drawings: 1. Base; 2. Placement platform; 3. Mounting base; 301. Divider plate; 302. Support column; 4. Movable ring; 5. First electric cylinder; 6. Second electric cylinder; 7. Tap; 8. Drive motor; 801. Sun gear; 802. Planetary gear; 803. Gear ring; 804. Driven gear; 9. Tool holder; 901. First thrust bearing; 902. Second thrust bearing; 903. Movable ring; 904. Clamping block; 905. Push block. Detailed Implementation

[0025] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0026] Please see Figures 1-8 This utility model provides an embodiment of a multi-hole synchronous tapping device for a pump body, comprising a tap 7, a clamping block 904, and a transmission assembly. A handle 9 is provided on the outer side of the tap 7, and a clamping block 904 for holding the tap 7 is rotatably connected to the inner side of the handle 9. A movable ring 903 is slidably connected to the outer side of the handle 9. A push block 905 is provided at the contact point between the movable ring 903 and the clamping block 904. The contact surface between the push block 905 and the clamping block 904 is a slope. A movable ring 4 is provided at the bottom of the movable ring 903. A mounting base 3 is provided above the handle 9. A driving assembly is provided on the inner side of the mounting base 3. A second electric cylinder 6 is provided between the mounting base 3 and the movable ring 4. A base 1 is provided on the outer side of the mounting base 3, and a first electric cylinder 5 is provided between the base 1 and the mounting base 3. By improving the clamping mechanism of the tool holder 9, the movable ring 4 pushes the movable ring 903 upward, causing the clamping block 904 to retract into the tool holder 9 to clamp the tap 7. When disassembling or assembling the tap 7, the second electric cylinder 6 pushes the movable ring 4 downward, and the clamping block 904 loses its lateral thrust and thus loses its clamping force. At this time, all the taps 7 are adsorbed into the inner wall of the tool holder 9 under the tension of the cutting fluid, and the operator can easily disassemble or assemble the taps 7. Furthermore, when setting the tool, all the tool holders 9 can be moved downward without clamping, and a flat plate can be placed under the tap 7 so that the tap 7 contacts the flat plate and retracts into the tool holder 9, thereby making the bottoms of all the taps 7 flush. Then, the movable ring 4 is pushed upward to clamp the tap 7, and the tool setting can be performed quickly.

[0027] Please see Figures 3-6 In this embodiment, a partition plate 301 is provided on the inner side of the mounting base 3, and a support column 302 is provided at the bottom of the partition plate 301. The support column 302 is fixedly connected to the mounting base 3 and the partition plate 301. The drive assembly includes a drive motor 8, a sun gear 801, planet gears 802, a ring gear 803, and a driven gear 804. The drive motor 8 is provided above the mounting base 3, and the sun gear 801 is provided above the partition plate 301. The sun gear 801 is fixedly connected to the output shaft of the drive motor 8. Planet gears 802 are provided on the outer side of the sun gear 801. A gear ring 803 is provided on the outer side of the tool holder 9, and a driven gear 804 is provided on the upper end of the tool holder 9. The gear ring 803 passes through the partition plate 301 and meshes with the driven gear 804. The partition plate 301 divides the space inside the mounting base 3, separating the planetary gear 802 and the driven gear 804 to prevent collision. The drive motor 8 drives the sun gear 801 to rotate. The sun gear 801, planetary gear 802 and gear ring 803 form a planetary gear set, which reduces speed and increases torque while transmitting power. The rotating driven gear 804 drives the driven gear 804 to rotate, thereby driving the tool holder 9 to rotate.

[0028] Please see Figures 6-7 In this embodiment, a second thrust bearing 902 is provided between the movable ring 4 and the movable ring 903. The second thrust bearing 902 is rotatably connected to the movable ring 4 when the movable ring 903 is high. A first thrust bearing 901 is provided between the tool holder 9 and the mounting base 3. The tool holder 9 is rotatably connected to the mounting base 3 through the first thrust bearing 901. The first thrust bearing 901 reduces friction at the connection between the tool holder 9 and the mounting base 3, and the second thrust bearing 902 reduces friction at the connection between the movable ring 4 and the movable ring 903.

[0029] Please see Figure 1 In this embodiment, the bottom of the tap 7 is provided with a placement platform 2 for placing the workpiece. During use, a clamp is set above the placement platform 2 to position and fix the workpiece.

[0030] In use, the drive motor 8 drives the sun gear 801 to rotate. The sun gear 801, planet gear 802 and gear ring 803 form a planetary gear set. While transmitting power, the speed is reduced and the torque is increased. The rotating driven gear 804 drives the driven gear 804 to rotate, thereby driving the tool holder 9 and tap 7 to rotate. The first electric cylinder 5 pushes the mounting base 3 to move slowly downward to tap the workpiece.

[0031] When disassembling and assembling tap 7, the second electric cylinder 6 pushes the movable ring 4 downward, and the movable ring 903 moves downward under the action of gravity, causing the push block 905 to separate from the clamping block 904. The clamping block 904 loses its lateral thrust and thus loses its clamping force. At this time, all taps 7 are adsorbed into the inner wall of the tool holder 9 under the tension of the cutting fluid. The operator can easily remove the tap 7 and wet the shank of the new tap 7 and insert it into the tool holder 9. Since the device is a special machine, the diameter of the tapped holes is the same, so the inner wall diameter of the tool holder 9 is the same as the shank diameter of the tap 7. The tap 7 can be adsorbed into the tool holder 9 under the action of water tension and will not fall off.

[0032] When setting the tool, after inserting all the new taps 7 into the tool holder 9, keep the movable ring 903 separated from the clamping block 904, and place a flat plate under the taps 7. Then, control the first electric cylinder 5 to extend so that the taps 7 face downwards and meet the plate. The taps 7 contact the plate and retract into the tool holder 9, so that the bottoms of all the taps 7 are aligned. At this time, push the movable ring 4 upward to clamp the taps 7, and the tool setting can be done quickly.

[0033] Through the above steps, by improving the clamping mechanism of the tool holder 9, the movable ring 4 pushes the movable ring 903 upward, causing the clamping block 904 to retract into the tool holder 9 to clamp the tap 7. When disassembling or assembling the tap 7, the second electric cylinder 6 pushes the movable ring 4 downward, and the clamping block 904 loses its lateral thrust and thus loses its clamping force. At this time, all the taps 7 are adsorbed into the inner wall of the tool holder 9 under the tension of the cutting fluid, and the operator can easily disassemble or assemble the taps 7. Furthermore, when setting the tool, all the tool holders 9 can be moved downward without clamping, and a flat plate can be placed under the tap 7 so that the tap 7 contacts the flat plate and retracts into the tool holder 9, thereby making the bottoms of all the taps 7 flush. At this time, the movable ring 4 is pushed upward to clamp the tap 7, and the tool setting can be performed quickly.

Claims

1. A pump body multi-hole synchronous tapping device, comprising a tap (7); characterized in that: It also includes a clamping block (904) and a transmission assembly. A tool holder (9) is provided on the outside of the tap (7). A clamping block (904) for clamping the tap (7) is rotatably connected to the inside of the tool holder (9). A movable ring (903) is slidably connected to the outside of the tool holder (9). A push block (905) is provided at the contact point between the movable ring (903) and the clamping block (904). The contact surface between the push block (905) and the clamping block (904) is a slope. A movable ring (4) is provided at the bottom of the movable ring (903). A mounting base (3) is provided above the tool holder (9). A drive assembly is provided on the inside of the mounting base (3). A second electric cylinder (6) is provided between the mounting base (3) and the movable ring (4). A base (1) is provided on the outside of the mounting base (3). A first electric cylinder (5) is provided between the base (1) and the mounting base (3).

2. The pump body multi-hole synchronous tapping device according to claim 1, characterized in that: A partition plate (301) is provided on the inner side of the mounting base (3), and a support column (302) is provided at the bottom of the partition plate (301). The support column (302) is fixedly connected to the mounting base (3) and the partition plate (301).

3. The pump body multi-hole synchronous tapping device according to claim 1, characterized in that: The drive assembly includes a drive motor (8), a sun gear (801), planet gears (802), a ring gear (803), and a driven gear (804). The drive motor (8) is disposed above the mounting base (3).

4. The pump body multi-hole synchronous tapping device according to claim 3, characterized in that: A sun gear (801) is provided above the partition plate (301). The sun gear (801) is fixedly connected to the output shaft of the drive motor (8). A planet gear (802) is provided on the outside of the sun gear (801). A gear ring (803) is provided on the outside of the planet gear (802).

5. The pump body multi-hole synchronous tapping device according to claim 4, characterized in that: The upper end of the tool holder (9) is provided with a driven gear (804), and the gear ring (803) passes through the partition plate (301) and meshes with the driven gear (804).

6. The pump body multi-hole synchronous tapping device according to claim 1, characterized in that: A second thrust bearing (902) is provided between the movable ring (4) and the movable ring (903). The second thrust bearing (902) is rotatably connected to the movable ring (4) when the movable ring (903) is too high. A first thrust bearing (901) is provided between the tool holder (9) and the mounting base (3). The tool holder (9) is rotatably connected to the mounting base (3) through the first thrust bearing (901).

7. The pump body multi-hole synchronous tapping device according to claim 1, characterized in that: The bottom of the tap (7) is provided with a placement platform (2) for placing the workpiece. When in use, a clamp is set above the placement platform (2) to position and fix the workpiece.