Pin type porcelain thread trimming and tapping tool

Abstract

The utility model relates to insulator processing technical field especially a needle type porcelain thread shape greenware repairing tapping tool, the utility model discloses a rotating shaft is provided with the sliding connection along the up and down direction to the tapping machine rotating motor, detachably established the tapping post in the lower extreme of rotating shaft, set up in the middle section of rotating shaft and be used for driving rotating shaft along the up and down direction activity of tapping machine's advancing and retreating knife subassembly, set up in the middle section of rotating shaft and be used for the liquid discharge subassembly of the cooling liquid jet on the tapping post and set up between the tapping post and rotating shaft and be used for the mounting subassembly of tapping post and rotating shaft fixed connection installation.

Description

Technical Field

[0001] This utility model relates to the field of insulator processing technology, and in particular to a needle-type ceramic thread trimming and tapping tool. Background Technology

[0002] Currently, during the insulator manufacturing process, threads need to be tapped at the corresponding positions of the steel foot mounting holes to facilitate subsequent insulator installation. However, existing tapping tools have the following problems during the tapping process:

[0003] 1. Most existing tapping machines are semi-automatic or fully automatic. When tapping, the tapping pin moves downward at the speed at which the operator presses down the operating handle to push the tapping pin into the mounting hole for tapping. Since the downward movement speed is manually controlled by the operator, it is easy for the downward speed to be mismatched with the rotation speed of the tapping pin, resulting in thread disorder and affecting the thread quality.

[0004] In fully automatic tapping machines, the descent rate of the tap post is entirely regulated by an electronic system. However, the working environment of the tapping machine contains a large amount of dust and debris, which can affect the accuracy of the electronic system. This can cause the descent rate of the tap post to be affected and not match the rotation rate of the tap post, resulting in thread disorder.

[0005] 2. For insulators of different sizes, the length of the mounting hole will also change accordingly. Therefore, it is necessary to replace the tapping post with one of different length in a timely manner. The existing tapping post is installed by inserting the upper threaded section into the threaded sleeve at the lower end of the rotating shaft and tightening it along the thread line. However, coolant is sprayed during the tapping process to cool down, which causes the coolant to flow down from the surface of the threaded sleeve during installation, making the surface of the tapping post wet. This causes the tapping post to slip, shift, and tilt during installation, thus creating installation difficulties.

[0006] In order to reduce the heat generated by friction between the tapping cylinder and the mounting hole during the tapping process of a semi-automatic tapping machine, a special spray pipe for spraying coolant toward the tapping position is often installed. It is driven by electronic control and needs to be turned on on the control panel before tapping and turned off on the control panel after tapping. This makes it impossible to guarantee the quantitative and uniform spraying of cutting coolant during the actual tapping process, which affects the quality of the thread. Utility Model Content

[0007] To address the aforementioned problems, the present invention aims to provide a needle-type ceramic thread trimming and tapping tool, which solves the problem of mismatch between the tapping post descent rate and the tapping post rotation rate.

[0008] To achieve the above objectives, the present invention adopts the following technical solution:

[0009] A needle-type ceramic thread trimming and tapping tool includes a rotating shaft slidably connected to the rotating motor of a tapping machine in the vertical direction, a tapping post detachably disposed at the lower end of the rotating shaft, a feed and retraction assembly disposed in the middle section of the rotating shaft for driving the rotating shaft to move in the vertical direction of the tapping machine, a drainage assembly disposed in the middle section of the rotating shaft for spraying coolant onto the tapping post, and an installation assembly disposed between the tapping post and the rotating shaft for fixing the tapping post and the rotating shaft together.

[0010] The upper outer wall of the rotating shaft is provided with a limiting groove along the vertical direction. A drive spindle sleeve that is axially fixedly connected to the output shaft of the rotating motor is sleeved on the rotating shaft. A protrusion is fixedly provided on the inner wall of the drive spindle sleeve at the position corresponding to the limiting groove.

[0011] The feed and retraction assembly includes a threaded column fixed in the middle section of the rotating shaft, a fixed sleeve movably sleeved in the middle section of the rotating shaft and threadedly connected to the threaded column, and a number of mounting holes arranged circumferentially at intervals on the upper end of the fixed sleeve.

[0012] The threads on the outer wall of the threaded column and the threads on the outer wall of the tapping column are designed as synchronous threads.

[0013] More preferably, the mounting assembly includes a connecting sleeve fixed to the lower end of the rotating shaft, a mounting post fixed to the upper end of the tapping post, a positioning groove provided on the side wall of the mounting post in the vertical direction, a positioning strip fixed on the inner wall of the connecting sleeve at the position corresponding to the positioning groove, a threaded mounting sleeve movably provided on the outer wall of the connecting sleeve in the vertical direction and threadedly connected to the outer wall of the connecting sleeve, a boss fixed to the lower part of the mounting post, and a mounting thread provided on the outer wall of the boss and helically connected to the outer wall of the connecting sleeve.

[0014] More preferably, the drain assembly includes a pressure plate fixed on the rotating shaft and located below the threaded column and sealed to the inner wall of the fixed sleeve; a plurality of drain holes arranged circumferentially at intervals at the lower end of the fixed sleeve; a plurality of one-way drain valves fixed in the corresponding drain holes and used to allow coolant to flow unidirectionally toward the lower end of the rotating shaft; a delivery pipe fixed on the lower outer wall of the fixed sleeve and used to inject coolant into the fixed sleeve; and a one-way injection valve fixed in the fixed end of the delivery pipe and used to inject coolant unidirectionally from the delivery pipe into the fixed sleeve.

[0015] More preferably, an elastic sealing ring is fixedly provided on the outer wall of the pressure plate.

[0016] More preferably, the free end of the infusion tube is provided with a threaded connection cap.

[0017] This utility model has the following beneficial effects:

[0018] 1. This utility model uses a feed and retraction assembly to enable the rotating motor to drive the rotating shaft to rotate while the rotating shaft moves up and down along the thread line of the threaded column. Since the thread of the threaded column and the thread of the tapping column are synchronous threads, it ensures that the up and down movement speed of the rotating shaft always matches the rotation speed of the tapping column, thus ensuring the quality of the tapped thread.

[0019] 2. This utility model inserts the mounting post into the connecting sleeve by aligning the positioning groove with the positioning strip position, thereby coaxially installing the tapping post and the connecting sleeve. Then, by rotating the threaded mounting sleeve, it simultaneously connects the outer wall of the connecting sleeve with the mounting thread, thus achieving the effect of installing the tapping post at the lower end of the rotating shaft. This solves the problem of easy tilting during tapping post installation and achieves the effect of quick installation.

[0020] 3. This utility model uses the feed and retraction assembly to drive the pressure plate to move up and down synchronously during the up and down movement of the rotating shaft. This achieves the effect of increasing or decreasing the pressure in the space between the pressure plate and the lower end of the fixed sleeve. During the tapping process, the pressure plate gradually presses down, creating a thrust on the coolant in the space between the pressure plate and the lower end of the fixed sleeve. This causes the coolant to be squeezed out of the drain hole, so that in one tapping process, the drain assembly discharges a certain amount of coolant in the space between the pressure plate and the lower end of the fixed sleeve, thereby improving the quality of the thread.

[0021] 4. In the process of the tool advance and retraction assembly driving the rotating shaft to move upward, the pressure plate moves upward synchronously, which reduces the pressure in the space between the lower part of the pressure plate and the lower end of the fixed sleeve. This allows the coolant in the external storage tank to be drawn into the fixed sleeve by negative pressure through the infusion pipe, thus achieving the effect of quantitatively absorbing coolant during the retraction of the tapping column. Attached Figure Description

[0022] Figure 1 This is an overall exploded view of the present invention;

[0023] Figure 2 This is an overall axonometric view of the present invention;

[0024] Figure 3 This is a schematic diagram of an overall vertical cross-sectional structure of the present invention;

[0025] Figure 4 This is a magnified view of part A of the present invention.

[0026] Explanation of reference numerals in the attached figures:

[0027] 1. Rotating shaft; 2. Tapping post; 3. Feed / retract assembly; 31. Threaded post; 32. Fixing sleeve; 33. Mounting hole; 4. Drainage assembly; 41. Pressure plate; 42. Drainage hole; 43. One-way drain valve; 44. Infusion pipe; 45. One-way injection valve; 5. Mounting assembly; 51. Connecting sleeve; 52. Mounting post; 53. Positioning groove; 54. Positioning strip; 55. Threaded mounting sleeve; 56. Boss; 57. Mounting thread; 6. Limiting groove; 7. Drive spindle sleeve; 8. Raised strip; 9. Elastic sealing ring; 10. Threaded connection cover. Detailed Implementation

[0028] The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0029] like Figure 1 , Figure 2 and Figure 3 As shown, a needle-type ceramic thread trimming and tapping tool of this embodiment includes a rotating shaft 1 that is slidably connected to the rotating motor of the tapping machine in the vertical direction, a tapping post 2 that is detachably disposed at the lower end of the rotating shaft 1, a tool advance and retraction assembly 3 disposed in the middle section of the rotating shaft 1 and used to drive the rotating shaft 1 to move in the vertical direction of the tapping machine, a draining assembly 4 disposed in the middle section of the rotating shaft 1 and used to spray coolant onto the tapping post 2, and an installation assembly 5 disposed between the tapping post 2 and the rotating shaft 1 and used to fix the tapping post 2 and the rotating shaft 1 for installation.

[0030] A limiting groove 6 is provided on the upper outer wall of the rotating shaft 1 along the vertical direction. A drive spindle sleeve 7, which is axially fixedly connected to the output shaft of the rotating motor, is sleeved on the rotating shaft 1. A protrusion 8 is fixedly provided on the inner wall of the drive spindle sleeve 7 at the position corresponding to the limiting groove 6.

[0031] The feed and retraction tool assembly 3 includes a threaded post 31 fixed in the middle section of the rotating shaft 1, a fixed sleeve 32 movably sleeved in the middle section of the rotating shaft 1 and threadedly connected to the threaded post 31, and a plurality of mounting holes 33 arranged circumferentially at intervals on the upper end of the fixed sleeve 32.

[0032] The outer wall thread of threaded column 31 and the outer wall thread of tapping column 2 are set as synchronous threads.

[0033] When using this product, the upper limit groove 6 of the rotating shaft 1 corresponds to the position of the protrusion 8. The rotating shaft 1 is inserted into the drive spindle sleeve 7, and then the fixed sleeve 32 is fitted onto the rotating shaft 1. After the fixed sleeve 32 is threadedly connected to the threaded column 31, screws are inserted into each mounting hole 33 to fix the fixed sleeve 32 on the tapping machine. At this time, the rotating motor starts, driving the drive spindle sleeve 7 to rotate synchronously with the output shaft of the rotating motor, thereby driving the rotating shaft 1 to rotate synchronously. Since the fixed sleeve 32 is fixed firmly, during the rotation of the rotating shaft 1, the threaded column 1 drives the rotating shaft 1 to move up and down along the threaded connection line with the inner wall of the fixed sleeve 32, thereby driving the rotating shaft 1 to move up and down along the limit groove 6, so as to drive the tapping column 2 to rotate and tap at the same time to complete the feed and retraction. Furthermore, because the outer wall threads of the threaded post 31 and the outer wall threads of the tapping post 2 are set as synchronous threads, when the rotating shaft 1 moves up and down along the thread path of the threaded post 31, the movement path is synchronized with the tapping path of the tapping post 2, which ensures the tapping quality of the tapping post 2 and prevents thread disorder. When different thread pitch patterns are required for the threaded mounting holes, it is necessary to replace the rotating shaft 1 with the corresponding threaded post 31 and the tapping post 2 with the corresponding thread line.

[0034] like Figure 1 , Figure 2 and Figure 3 As shown, the mounting assembly 5 includes a connecting sleeve 51 fixed to the lower end of the rotating shaft 1, a mounting post 52 fixed to the upper end of the tapping post 2, a positioning groove 53 provided on the side wall of the mounting post 52 in the vertical direction, a positioning strip 54 fixed on the inner wall of the connecting sleeve 51 at the position corresponding to the positioning groove 53, a threaded mounting sleeve 55 movably provided on the outer wall of the connecting sleeve 51 in the vertical direction and threadedly connected to the outer wall of the connecting sleeve 51, a boss 56 fixed on the lower part of the mounting post 52, and a mounting thread 57 provided on the outer wall of the boss 56 and threadedly connected to the outer wall of the connecting sleeve 51.

[0035] When using this product, the positioning groove 53 on the mounting post 52 corresponds to the positioning strip 54. The mounting post 52 is inserted into the connecting sleeve 51, and the tapping post 2 is pushed into the connecting sleeve 51 so that it is completely embedded in the connecting sleeve 51. At this time, the mounting thread 57 is connected to the thread on the outer wall of the connecting sleeve 51. Then, the operator rotates the threaded mounting sleeve 55, which moves the threaded mounting sleeve 55 downward along the thread line until the threaded mounting sleeve 55 moves to the point where the threaded connection between the outer wall of the connecting sleeve 51 and the mounting thread 57 is made. At this point, the tapping post 2 is fixedly installed at the lower end of the rotating shaft 1 by the fixing force of the threaded mounting sleeve 55, thus completing the installation of the tapping post 2.

[0036] like Figure 1 , Figure 2 , Figure 3 and Figure 4As shown, the drain assembly 4 includes a pressure plate 41 fixed on the rotating shaft 1 and located below the threaded post 31 and sealed to the inner wall of the fixed sleeve 32; a plurality of drain holes 42 arranged circumferentially at intervals at the lower end of the fixed sleeve 32; a plurality of one-way drain valves 43 fixed in the corresponding drain holes 42 and used to allow coolant to flow unidirectionally toward the lower end of the rotating shaft 1; a delivery pipe 44 fixed on the lower outer wall of the fixed sleeve 32 and used to inject coolant into the fixed sleeve 32; and a one-way injection valve 45 fixed in the fixed end of the delivery pipe 44 and used to inject coolant unidirectionally from the delivery pipe 44 into the fixed sleeve 32.

[0037] When this product is in use, as the rotating shaft 1 moves downward, the pressure plate 41 moves downward synchronously with the rotating shaft 1, thereby creating downward pressure on the space between the pressure plate 41 and the lower end of the fixed sleeve 32. This pushes the coolant in the space between the pressure plate 41 and the lower end of the fixed sleeve 32 downward, spraying the coolant from each one-way drain valve 43 towards the tapping post 2. This uniformly sprays the coolant onto the surface of the tapping post 2, cooling the surface of the tapping post 2. After tapping is completed, the rotating motor rotates in the opposite direction, causing the rotating shaft 1 to drive the pressure plate 41 upward. This creates a negative pressure in the space between the pressure plate 41 and the lower end of the fixed sleeve 32. At this time, the negative pressure in the space inside the fixed sleeve 32 creates a suction force on the liquid storage tank, causing the coolant to be drawn from the liquid storage tank into the fixed sleeve 32, completing the coolant intake for the next tapping use.

[0038] like Figure 4 As shown, an elastic sealing ring 9 is fixed on the outer wall of the pressure plate 41.

[0039] When using this product, ensure that the space between the bottom of the pressure plate 41 and the lower end of the inside of the fixed sleeve 32 remains sealed.

[0040] like Figure 1 , Figure 2 and Figure 3 As shown, the free end of the infusion tube 44 is provided with a threaded connection cap 10.

[0041] When using this product, the threaded connection cap 10 is used to connect to the outlet port of the coolant reservoir.

[0042] The working principle of this device is as follows:

[0043] Step 1: Align the upper limit groove 6 of the rotating shaft 1 with the position of the protrusion 8, insert the rotating shaft 1 into the drive spindle sleeve 7, then put the fixing sleeve 32 on the rotating shaft 1, and thread the fixing sleeve 32 to the threaded post 31. Then, insert screws into each mounting hole 33 to fix the fixing sleeve 32 on the tapping machine.

[0044] Step 2: At this time, the positioning groove 53 on the corresponding tapping post 2 mounting post 52 corresponds to the positioning strip 54 position. Insert the mounting post 52 into the connecting sleeve 51 and push the tapping post 2 into the connecting sleeve 51 so that it is completely embedded in the connecting sleeve 51. At this time, the mounting thread 57 is connected to the thread on the outer wall of the connecting sleeve 51. Then the operator rotates the threaded mounting sleeve 55, which moves the threaded mounting sleeve 55 downward along the thread line until the threaded mounting sleeve 55 moves to the point where the threaded connection between the outer wall of the connecting sleeve 51 and the mounting thread 57 is made. At this time, the tapping post 2 is fixedly mounted on the lower end of the rotating shaft 1 by the fixing force of the threaded mounting sleeve 55.

[0045] Step 3: At this time, tighten the threaded connection cap 10 at the free end of the infusion tube 44 and install it on the outlet port of the cutting fluid storage cylinder containing coolant. Then, start the rotating motor to drive the rotating shaft 1 to move downward along the spiral direction of the threaded column 31. This causes the pressure plate 41 to move downward synchronously with the rotating shaft 1, thereby creating downward pressure on the space between the lower part of the pressure plate 41 and the lower end of the fixed sleeve 32. This forces the air in the space between the lower part of the pressure plate 41 and the lower end of the fixed sleeve 32 to be discharged from the lower one-way drain valve 43 of the fixed sleeve 32. After rotating to the lower end of the threaded column 31, the air in the fixed sleeve 32 is completely expelled. Then, the rotating motor drives the rotating shaft 1 to rotate in the opposite direction, causing the rotating shaft 1 to move the pressure plate 41 upward. This creates a negative pressure in the space between the lower part of the pressure plate 41 and the lower end of the fixed sleeve 32. At this time, the negative pressure in the space of the fixed sleeve 32 creates a suction force on the storage cylinder, causing the coolant to be drawn from the storage cylinder into the fixed sleeve 32, thus completing the intake of coolant.

[0046] Step 4: Now, tapping begins. Place the insulator below the tap post 2 and align the insulator mounting hole with the tap post 2. Start the rotating motor to rotate the rotating shaft 1, causing it to move downwards along the helical direction of the thread post 31. This allows the tap post 2 to rotate and tap simultaneously, while also moving downwards along the thread direction of the thread post 31. Since the threads of the thread post 31 and the thread post 2 are synchronous threads, the rate at which the tap post 2 moves downwards and taps is the same as the path of the tapped thread, ensuring the quality of the thread.

[0047] Step 5: As the rotating shaft 1 moves downward, the pressure plate 41 moves downward synchronously with the rotating shaft 1, thereby creating downward pressure on the space between the lower part of the pressure plate 41 and the lower end of the fixed sleeve 32. This pushes the coolant in the space between the lower part of the pressure plate 41 and the lower end of the fixed sleeve 32 downward, and sprays the coolant from each one-way drain valve 43 toward the tapping post 2, thereby uniformly spraying the coolant onto the surface of the tapping post 2 and cooling the surface of the tapping post 2.

[0048] Step 6: After tapping is completed, the motor rotates in the opposite direction, causing the rotating shaft 1 to drive the pressure plate 41 to move upward. This creates a negative pressure in the space between the lower part of the pressure plate 41 and the lower end of the fixed sleeve 32. At this time, the negative pressure in the space inside the fixed sleeve 32 creates a suction force on the liquid storage cylinder, causing the coolant to be drawn from the liquid storage cylinder into the fixed sleeve 32. This completes the intake of coolant, making it convenient for the next tapping.

[0049] 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 needle-type ceramic thread trimming and tapping tool, characterized in that: The device includes a rotating shaft (1) that is slidably connected to the rotating motor of the tapping machine in the vertical direction, a tapping column (2) that is detachably located at the lower end of the rotating shaft (1), a feed and retraction assembly (3) located in the middle section of the rotating shaft (1) and used to drive the rotating shaft (1) to move in the vertical direction of the tapping machine, a drain assembly (4) located in the middle section of the rotating shaft (1) and used to spray coolant onto the tapping column (2), and an installation assembly (5) located between the tapping column (2) and the rotating shaft (1) and used to fix the tapping column (2) and the rotating shaft (1) in a fixed connection. The upper outer wall of the rotating shaft (1) is provided with a limiting groove (6) in the vertical direction. A drive spindle sleeve (7) that is axially fixedly connected to the output shaft of the rotating motor is sleeved on the rotating shaft (1). A protrusion (8) is fixedly provided on the inner wall of the drive spindle sleeve (7) at the position corresponding to the limiting groove (6). The advance and retraction tool assembly (3) includes a threaded post (31) fixed in the middle section of the rotating shaft (1), a fixed sleeve (32) movably sleeved in the middle section of the rotating shaft (1) and threadedly connected to the threaded post (31), and a number of mounting holes (33) arranged circumferentially at intervals on the upper end of the fixed sleeve (32). The thread on the outer wall of the threaded column (31) and the thread on the outer wall of the tapping column (2) are set as synchronous threads.

2. The needle-type ceramic thread trimming and tapping tool according to claim 1, characterized in that: The mounting assembly (5) includes a connecting sleeve (51) fixed to the lower end of the rotating shaft (1), a mounting post (52) fixed to the upper end of the tapping post (2), a positioning groove (53) provided on the side wall of the mounting post (52) in the vertical direction, a positioning strip (54) fixed on the inner wall of the connecting sleeve (51) at the position corresponding to the positioning groove (53), a threaded mounting sleeve (55) movably provided on the outer wall of the connecting sleeve (51) in the vertical direction and threadedly connected to the outer wall of the connecting sleeve (51), a boss (56) fixed to the lower part of the mounting post (52), and a mounting thread (57) provided on the outer wall of the boss (56) and threadedly connected to the outer wall of the connecting sleeve (51).

3. The needle-type ceramic thread trimming and tapping tool according to claim 1, characterized in that: The drain assembly (4) includes a pressure plate (41) fixed on the rotating shaft (1) and located below the threaded column (31) and sealed to the inner wall of the fixed sleeve (32), a plurality of drain holes (42) arranged circumferentially at intervals at the lower end of the fixed sleeve (32), a plurality of one-way drain valves (43) fixed in the corresponding drain holes (42) and used to make the coolant flow unidirectionally towards the lower end of the rotating shaft (1), a delivery pipe (44) fixed on the lower outer wall of the fixed sleeve (32) and used to inject the coolant into the fixed sleeve (32), and a one-way injection valve (45) fixed in the fixed end of the delivery pipe (44) and used to inject the coolant unidirectionally from the delivery pipe (44) into the fixed sleeve (32).

4. The needle-type ceramic thread trimming and tapping tool according to claim 3, characterized in that: An elastic sealing ring (9) is fixed on the outer wall of the pressure plate (41).

5. The needle-type ceramic thread trimming and tapping tool according to claim 3, characterized in that: The free end of the infusion tube (44) is provided with a threaded connection cap (10).

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