Milling equipment for ejector pin grinding machine

Abstract

To provide milling equipment for an ejector pin grinding machine, the milling equipment accelerating a production process, improving production efficiency, and simultaneously reducing manpower requirements.SOLUTION: Milling equipment for an ejector pin grinding machine according to the present invention includes a tool holder, a sleeve, a milling cutter, and a base. The tool holder includes a push rod and a spindle, the push rod having a first housing space, and the spindle is positioned in the first housing space. The sleeve has hollow structure and is located on one side of the tool holder. The milling cutter is connected to the spindle and the milling cutter is located within the sleeve. The base includes a collar and a stroke adjustment device. The collar houses a part of the push rod, and the stroke adjustment device is located on one side of the collar. After a raised floor is positioned, the stroke adjustment device controls the movement of the milling cutter to perform milling.SELECTED DRAWING: Figure 1

Description

[Technical Field]

[0001] The present invention relates to a milling device applied to a machine tool for processing burrs, particularly to an ejector pin grinding machine. [Background technology]

[0002] Raised floors are now widely used in high-end applications such as semiconductor factory floors and clean room floors. Conventional die-cast aluminum alloy raised floors require five major manufacturing processes, including mold opening, aluminum melting, die-casting, molding, and trimming.

[0003] During the molding process, multiple burrs are generated on the surface and bottom of the raised floor. These unprocessed burrs prevent the raised floor from being tightly fitted together and from being completely attached to the stage frame during the installation process. On the other hand, they are disadvantageous to workers during installation and pose certain safety concerns for workers and equipment.

[0004] However, in the conventional method, burrs on the four legs of the raised floor and the ejector pins of the rib portions that fit together must be removed manually after molding, which not only results in low production efficiency but also requires a great deal of labor for each process. Therefore, how to overcome the various drawbacks of the conventional technology described above is currently a challenge that the industry must overcome. Summary of the Invention [Problem to be solved by the invention]

[0005] The objective of the present invention is to provide a milling device for an ejector pin grinding machine that uses a matrix of multiple milling devices, in which multiple milling devices are arranged so as not to interfere with each other, in combination with an automatic process to perform batch grinding and milling on raised-bed ejector pin structures, thereby accelerating the production process, improving production efficiency, and simultaneously reducing manpower requirements. [Means for solving the problem]

[0006] The present invention provides a milling device for an ejector pin grinding machine, including a tool holder, a sleeve, a milling cutter, and a base. The tool holder includes a push rod and a spindle, the push rod having a first receiving space and the spindle located in the first receiving space. The sleeve has a hollow structure and is located on one side of the tool holder. The milling cutter is connected to the spindle and located within the sleeve. The base includes a collar and a stroke adjustment device, the collar receiving a portion of the push rod and the stroke adjustment device located on one side of the collar.

[0007] The stroke adjustment device further includes a stroke bracket, a damper, a first adjuster, a second adjuster, a first stroke contactor, and a second stroke contactor. The stroke bracket is located on one side of the base and has the abutment surface. The damper is connected to the stroke bracket. The first adjuster and the abutment surface are spaced a first distance apart.

[0008] The second adjuster and the abutment surface are separated by a second distance. The first stroke contactor is adjacent to the first adjuster, and when the first stroke contactor contacts the first adjuster, the milling cutter is in a first position. The second stroke contactor is adjacent to the second adjuster, and when the second stroke contactor contacts the second adjuster, the milling cutter is in a second position.

[0009] In one embodiment, a drill head fixing plate is further installed inside the upper end of the sleeve, the drill head fixing plate having a hollow structure, located at the lower end of the push rod, and the drill head fixing plate is connected to the push rod.

[0010] In one embodiment, the push rod further has a large diameter portion and a small diameter portion at both ends, the small diameter portion being adjacent to the base portion, the push rod having a hollow structure, and the small diameter portion and the first accommodating space being electrically connected to each other.

[0011] Furthermore, the outer edge of the main shaft includes a regulating device, which has a bearing, a lock nut, and a handle cap, the bearing is adjacent to the main shaft, the lock nut is fixed to the bearing, the handle cap is located within the large diameter portion, and the handle cap houses the lock nut.

[0012] In one embodiment, the main shaft further includes a second accommodating space, the second accommodating space being capable of accommodating a spline, the spline having a first pattern at one end, and the second accommodating space located at one end of the main shaft having a second pattern corresponding to the first pattern, and a combination of the first pattern and the second pattern causes the spline to drive the main shaft to perform rotational movement.

[0013] Furthermore, the other end of the spline is connected to a synchronizing wheel, causing the synchronizing wheel to rotate in synchronism with the spline and the main shaft.

[0014] In one embodiment, the stroke adjustment device further includes an intake valve and an exhaust valve, the intake valve allowing gas to enter the stroke adjustment device and cause the push rod to perform a displacement movement, and the exhaust valve allowing the gas to flow from an exhaust passage to the stroke adjustment device, facilitating replacement of the milling cutter, and the stroke adjustment device also includes a back pressure exhaust valve, the back pressure exhaust valve being located in the intake passage, and when the intake pressure is greater than a set value of the back pressure exhaust pressure, the gas is exhausted from the back pressure exhaust valve.

[0015] In one embodiment, the sleeve has an internal thread that threadably engages with the internal thread on the outer edge of the drill head fixing plate, allowing the relative positions of the sleeve and the drill head fixing plate to be adjusted. When the height position of the sleeve is adjusted, the sleeve can be fixed to the drill head fixing plate via a stop bolt, and the drill head fixing plate can be fixed to the push rod, allowing the sleeve to move up and down synchronously with the drill head fixing plate. [Effects of the Invention]

[0016] The milling device of the ejector pin grinding machine of the present invention uses a matrix of multiple milling devices, with multiple milling devices arranged without interfering with each other, combined with an automated process to grind and mill each raised-bed ejector pin structure in batches, accelerating the production process and improving production efficiency while simultaneously reducing manpower requirements. [Brief explanation of the drawings]

[0017] [Figure 1] 1 is a perspective view illustrating a first embodiment of the present invention. FIG. [Figure 2] FIG. 2 is a perspective view illustrating a first position of the milling cutter according to the first embodiment of the present invention. [Figure 3] FIG. 2 is a perspective view illustrating the second position of the milling cutter according to the first embodiment of the present invention. [Figure 4] FIG. 2 is an explanatory diagram of the cross section AA of FIG. [Figure 5] FIG. 5 is an enlarged view of region B in FIG. [Figure 6] FIG. 3 is an explanatory diagram of the rotational movement of some members in the first embodiment of the present invention. [Figure 7] FIG. 4 is a first explanatory diagram of the displacement movement of the push rod in the first embodiment of the present invention. [Figure 8] FIG. 6 is a second explanatory diagram of the displacement movement of the push rod in the first embodiment of the present invention. [Figure 9] FIG. 10 is a perspective view illustrating a second embodiment of the present invention. [Figure 10] 10 is an explanatory diagram of the displacement motion of the push rod in the CC cross section of FIG. 9. FIG. DETAILED DESCRIPTION OF THE INVENTION

[0018] To make the above and other objects, features, advantages and embodiments of the present invention more comprehensible, the following description is given in conjunction with the drawings.

[0019] The above description is merely a summary of the technical solution of the present invention. In order to more clearly understand the technical means of the present invention and enable it to be implemented in accordance with the contents of the specification, and to clearly understand the above and other objects, features and advantages of the present invention, the following preferred embodiments will be described in detail with reference to the drawings.

[0020] The following disclosure provides various embodiments or examples for implementing different features of the provided subject matter. The specific examples of components and arrangements described below are intended to simplify the disclosure and are not intended to be limiting. The sizes and shapes of components are not limited by the disclosed ranges or numerical values. For example, various drawings and cross-sectional views are used to explain technical features of the present invention, but these cross-sectional views are illustrative of idealized embodiments. Therefore, variations in the shapes shown in the drawings due to manufacturing processes and / or tolerances are to be expected and are not intended to be limiting. At the same time, terms such as "upper," "lower," "front," "rear," "left," "right," "first," "second," "third," "fourth," and "one" used in this specification are used only for clarity of description and are not used to limit the scope of the present invention. Changes or adjustments to their relative relationships are within the scope of the present invention as long as they do not substantially change the technical content. In accordance with common practice, the various features and components in the figures are not drawn to scale but are drawn in a manner that best represents the specific features and components associated with this work. Furthermore, when referring to similar elements or components between different drawings, the same or similar element symbols are used.

[0021] 1 to 4, in a first embodiment of the present invention, the present invention provides a milling device 1 of an ejector pin grinding machine, which includes a tool base 2, a sleeve 3, a milling cutter 4, and a base 5.

[0022] The tool holder 2 includes a push rod 21 and a spindle 22 , the push rod 21 has a first accommodating space 211 , and the spindle 22 is located within the first accommodating space 211 .

[0023] The sleeve 3 has a hollow structure and is located on one side (end) of the tool holder 2. A drill bit fixing plate 31 is installed inside the upper end of the sleeve 3. The drill bit fixing plate 31 also has a hollow structure and is located at the lower end of the push rod 21, and the drill head fixing plate 31 is connected to the push rod 21.

[0024] Referring to FIG. 5, in the first embodiment of the present invention, the drill head fixing plate 31 is preferably located at one side (end) of the sleeve 3, and the sleeve 3 has an internal thread 311 that is engaged with the external thread 312 on the outer edge of the drill head fixing plate 31, thereby adjusting the relative positions of the sleeve 3 and the drill head fixing plate 31, i.e., the height position of the sleeve 3 can be adjusted.

[0025] In addition, the sleeve 3 further has a nut 32 on the outside, and when the adjustment of the height position of the sleeve 3 is completed, the sleeve 3 is fixed to the drill head fixing plate 31 via a stop bolt 33, and the drill head fixing plate 31 is fixed to the push rod 21, allowing the sleeve 3 to move up and down in synchronization with the push rod 21.

[0026] The milling cutter 4 is connected to the main shaft 22 , and the milling cutter 4 is fixed in a threaded hole at the bottom of the main shaft 22 using a bolt 41 , and the milling cutter 4 is located in the sleeve 3 .

[0027] The base 5 includes a collar 51, a stroke adjustment device 52, and a ball grinding head 53. The collar 51 accommodates a part of the push rod 21, and the stroke adjustment device 52 is located on one side (end) of the collar.

[0028] The stroke adjusting device 52 is fixed to one end of the collar 51, and the ball grinding head 53 is fixed to the other end of the collar 51, forming a gas cylinder together with the collar 51.

[0029] The stroke bracket 521 is located on one side of the base 5 , and has an abutment surface 5211 . Preferably, the abutment surface 5211 is located on one side of the stroke bracket 521 .

[0030] The damper 522 is connected to the stroke bracket 521 .

[0031] The first adjuster 523 and the abutment surface 5211 are spaced apart by a first distance D1.

[0032] The second adjuster 524 and the abutment surface 5211 are spaced apart by a second distance D2.

[0033] The first stroke contactor 525 is adjacent to the first adjuster 523 , and when the first stroke contactor 525 contacts the first adjuster 523 , the milling cutter 4 is in the first position 81 .

[0034] The second stroke contactor 526 is adjacent to the second adjuster 524 , and when the second stroke contactor 526 contacts the second adjuster 524 , the milling cutter 4 is in the second position 82 .

[0035] In addition, the stroke bracket 521 further includes a screw 5212, and preferably, the abutment surface 5211 is located on one side of the screw 5212, and the first adjuster 523 and the second adjuster 524 are respectively located on the screw 5212 and can respectively adjust their positions on the screw 5212.

[0036] In this preferred embodiment, the first adjuster 523 and the second adjuster 524 are both adjustment nuts and are both located on the screw 5212, and the first stroke contactor 525 and the second stroke contactor 526 are both fine-motion type stroke switches, and the first adjuster 523 and the second adjuster 524 are located between the first stroke contactor 525 and the second stroke contactor 526, but this is not limited to this.

[0037] In this embodiment, both ends of the push rod 21 are a large diameter portion 212 and a small diameter portion 213, respectively, and the small diameter portion 213 is adjacent to the base 5. The push rod 21 has a hollow structure, and the small diameter portion 213 is connected to the first accommodating space 211.

[0038] 4 and 5, the outer edge of the main shaft 22 further includes a regulating device 23, which includes a bearing 231, a lock nut 232, and a handle cap 233. The inner ring of the bearing 231 is tightly connected to the main shaft 22, and the lock nut 232 is fixed to the male thread 223 of the main shaft 22 and supported and fixed to the bottom of the inner ring of the bearing 231, allowing the lock nut 232 and the bearing 231 to rotate together with the main shaft 22. The handle cap 233 is located within the large diameter portion 212, and receives the lock nut 232. The male thread 2331 of the handle cap 233 is fixed to the female thread 214 at one end of the push rod 21, thereby supporting and fixing the handle cap 233 to the bottom of the outer ring of the bearing 231.

[0039] In the first embodiment, preferably, there are two bearings 231, and they are arranged side by side, which can increase the stability of the main shaft 22 and improve cutting accuracy.

[0040] Referring to FIG. 6, the main shaft 22 includes a second accommodating space 221, and the second accommodating space 221 can accommodate the spline 6.

[0041] One end of the spline 6 has a first pattern 61, one end of the main shaft 22 has a second pattern 222, the second accommodating space 221 has the second pattern 222 corresponding to the first pattern 61, and the combination of the first pattern 61 and the second pattern 222 causes the spline 6 to drive the main shaft 22 to perform a rotational motion 91, and the other end of the spline 6 is connected to a synchronized wheel 7, which causes the spline 6 and the main shaft 22 to rotate synchronously.

[0042] That is, in this embodiment, the first pattern 61 is an outer bolt groove, and the second pattern 222 is a corresponding inner bolt groove. When the end of the spline 6 is inserted into the second accommodating space 221, and the synchronized wheel 7 performs the rotational movement 91 with the central axis of the spline 6 as the rotation axis through the corresponding outer bolt groove and inner bolt groove, the spline 6 drives the main shaft 22 to perform the rotational movement 91, and the main shaft 22 can move linearly up and down by using the first pattern 61 as the outer bolt groove and the second pattern 222 as the corresponding inner bolt groove.

[0043] 7 and 8, in the first embodiment, the stroke adjustment device 52 can be made of aluminum alloy, and an air intake passage 5271 and an exhaust passage 5281 are respectively provided within the stroke adjustment device 52. The stroke adjustment device 52 further includes an air intake valve 527 and an exhaust valve 528. The air intake valve 527 allows gas to enter the stroke adjustment device 52 from the air intake passage 5271 and reach the collar 51, causing the push rod 21 to perform a displacement movement 92. The exhaust valve 528 transfers the gas from the exhaust passage 5281 to the stroke adjustment device 52, causing the push rod 21 to perform the displacement movement 92 and return to its original position, facilitating replacement of the milling cutter 4.

[0044] 9 and 10 are explanatory diagrams of a second embodiment of the present invention, and the difference between the second example of the present invention and the first embodiment is that in the second embodiment, there is no need to install the damper 522, the first adjuster 523, the second adjuster 524, the first stroke contactor 525, and the second stroke contactor 526 on the base 5, and other configurations are the same as those in the first embodiment, so description thereof will be omitted. A point that should be explained separately is that in the second embodiment, as shown in FIG. 10, a back pressure exhaust valve 529 is further added to the air supply passage 5271 connected to the air supply valve 527, and the back pressure exhaust valve 529 is connected to a back pressure exhaust valve control device, so there is no need to use the damper 522, the first adjuster 523, the second adjuster 524, the first stroke contactor 525, and the second stroke contactor 526. When the back pressure exhaust pressure of the back pressure exhaust valve 529 is set to be larger than the supply pressure (for example, when the back pressure exhaust pressure of the back pressure exhaust valve 529 is set to be 6.9 to 7.5 kg / cm 2 The supply pressure is set at 5 to 6.5 kg / cm 2 When the supply air pressure generated during operation is greater than the back pressure exhaust pressure setting value, the gas that has entered the supply air flow path 5271 is discharged through the back pressure exhaust valve 529, which prevents the raised bed from being damaged by excessive pressure, reduces the vibration of the spindle 22, and reduces manufacturing costs.

[0045] In summary, the advantages of the milling device of the ejector pin grinding machine of the present invention are as follows: 1. A multi-set milling machine matrix, in which multiple milling machines are arranged in a non-interfering state, is used in combination with an automatic process to perform batch grinding and milling on each raised-bed ejector pin structure, accelerating the production process and improving production efficiency while simultaneously reducing manpower requirements. 2. The air inlet valve allows gas to enter the stroke adjustment device, causing the push rod to perform a displacement movement, and by adjusting the positions of the first and second adjusters on the threads, the movement of the milling cutter can be controlled to perform milling.

[0046] The above embodiments are only used to explain the technical solution of the present invention, and are not intended to limit the present invention. Although the present invention has been described in detail with reference to preferred embodiments, those skilled in the art can make modifications or equivalent substitutions to the technical solution of the present invention without departing from the spirit and scope of the technical solution of the present invention. [Explanation of symbols]

[0047] 1. Ejector pin grinding machine milling equipment 2 Tool holder 21 Push rod 211 First Storage Space 212 Large diameter section 213 Small diameter section 214 Internal thread 22 Main axis 221 Second Containment Space 222 Second Pattern 223 Male thread 2331 Male thread 23 Regulatory device 231 Bearing 232 Lock nut 233 Handle Cap 3 Sleeve 31 Drill head fixing plate 311 Female thread 312 male thread 32 Nut 33 Stop bolt 4 Milling cutter 41 volts 5. Bass 51 Color 52 Stroke adjustment device 521 Stroke bracket 5211 Contact surface 5212 Screw 522 Damper 523 1st regulator 524 2nd regulator 525 1st stroke contactor 526 Second Stroke Contactor 527 Air supply valve 5271 Air supply channel 528 Exhaust valve 5281 Exhaust passage 529 Back pressure exhaust valve 53 Ball Grinding Head 6 Splines 61 First Pattern 7 Synchronous Wheels 81 1st position 82 2nd position 91 Rotational Motion 92 Displacement Motion D1 First distance D2 2nd distance

Claims

1. a tool holder (2) including a push rod (21) and a main shaft (22), the push rod (21) having a first receiving space (211), and the main shaft (22) located in the first receiving space (211); a hollow sleeve (3) located on one side of the tool holder (2); a milling cutter (4) connected to the spindle (22) and located within the sleeve (3); The push rod (21) includes a collar (51), a stroke adjusting device (52), and a ball grinding head (53), the collar (51) receiving a part of the push rod (21), and the stroke adjusting device (52) includes a base (5) located on one side (end) of the collar (51); Including, ejector pin grinding machine milling equipment.

2. The stroke adjustment device (52) a stroke bracket (521) located on one side of the base (5) and having an abutment surface (5211); a damper (522) connected to the stroke bracket (521); a first adjuster (523) spaced apart from the contact surface (5211) by a first distance D1; a second adjuster (524) spaced apart from the abutment surface (5211) by a first distance D2; a first stroke contactor (525) adjacent to the first adjuster (523) and in contact with the first adjuster (523), the milling cutter (4) is in a first position (81); a second stroke contactor (526) adjacent to the second adjuster (524) and in contact with the second adjuster (524), the milling cutter (4) is in a second position (82); The milling device of claim 1 further comprising:

3. 2. The milling device for an ejector pin grinding machine according to claim 1, wherein a drill head fixing plate (31) is installed inside the upper end of the sleeve (3), the drill head fixing plate (31) has a hollow structure, is located on one side of the sleeve (3), and the drill head fixing plate (31) is connected to the lower end of the push rod (21).

4. 2. The milling device for an ejector pin grinding machine according to claim 1, wherein both ends of the push rod (21) are a large diameter portion (212) and a small diameter portion (213), the small diameter portion (213) is adjacent to the base (5), the push rod (21) has a hollow structure, and the small diameter portion (213) and the first accommodating space (211) are electrically connected to each other.

5. 5. The milling device for an ejector pin grinding machine according to claim 4, wherein an outer edge of the main shaft (22) further includes a regulating device (23), the regulating device (23) having a bearing (231), a lock nut (232), and a handle cap (233), the bearing (231) being adjacent to the main shaft (22), the lock nut (232) being fixed to the bearing (231), the handle cap (233) being located within the large diameter portion (212), and the handle cap (233) accommodating the lock nut (232), being fixed to the internal thread (214) of the push rod (21), and being supported and fixed on the outer ring of the bearing (231).

6. 2. The milling device for an ejector pin grinding machine according to claim 1, wherein the main shaft (22) has a second accommodating space (221), the second accommodating space (221) is capable of accommodating a spline (6), one end of the spline (6) has a first pattern (61), and the second accommodating space (221) located at one end of the main shaft (22) has a second pattern (222) corresponding to the first pattern (61), the first pattern (61) is coupled to the second pattern (222), and the spline (6) drives the main shaft to perform a rotational movement (91).

7. The milling device of the ejector pin grinding machine according to claim 6, wherein the other end of the spline (6) is connected to a synchronizer wheel (7), and the synchronizer wheel (7) rotates the spline (6) and the main shaft (22) in synchronization with each other.

8. 2. The milling device of claim 1, wherein the stroke adjustment device further includes an intake valve and an exhaust valve, the intake valve allowing gas to enter the stroke adjustment device and cause the push rod to perform a displacement movement, the exhaust valve allowing the gas to flow out of the stroke adjustment device to facilitate replacement of the milling cutter, the intake valve allowing gas to enter the stroke adjustment device from an intake passage through which the push rod performs a displacement movement, and the exhaust valve allowing the gas to flow out of an exhaust passage through which the gas flows to the stroke adjustment device to facilitate replacement of the milling cutter.

9. 9. The milling device of an ejector pin grinding machine according to claim 8, wherein the stroke adjustment device (52) further includes a back pressure exhaust valve (529), the back pressure exhaust valve (529) is located in the air supply passage (5271), and when the supply air pressure is greater than a set value of the back pressure exhaust pressure, the gas is exhausted from the back pressure exhaust valve (529).

10. 4. The milling device of an ejector pin grinding machine according to claim 3, wherein the sleeve (3) has a female screw (311) that screws together with a male screw (312) on the outer edge of the drill head fixing plate (31), thereby adjusting the relative positions of the sleeve (3) and the drill head fixing plate (31).

11. 11. The milling device for an ejector pin grinding machine according to claim 10, further comprising a nut (32) on the outside of the sleeve (3), and when the adjustment of the height position of the sleeve (3) is completed, the sleeve (3) is fixed to the drill head fixing plate (31) via a stop bolt (33), and the drill head fixing plate (31) is fixed to the push rod (21), allowing the sleeve (3) to be displaced up and down in synchronization with the push rod (21).

12. 2. The milling device of claim 1, wherein the milling cutter (4) is fixed in a threaded hole at the bottom of the main shaft (22) using a bolt (41), and the milling cutter (4) is positioned in the sleeve (3).

13. 2. The milling device for an ejector pin grinding machine according to claim 1, wherein the stroke adjustment device (52) is fixed to one end of the collar (51), and the ball grinding head (53) is fixed to the other end of the collar (51), forming a cylinder together with the collar (51).

14. 6. The milling device for an ejector pin grinding machine according to claim 5, wherein the bearing (231) is close to the main shaft and the lock nut (232) is fixed to the bearing (231), such that the inner ring of the bearing (231) is tightly joined to the main shaft (22), the lock nut (232) is fixed to the male thread (223) of the main shaft (22) and is supported and fixed to the bottom of the inner ring of the bearing (231), and the lock nut (232) and the bearing (231) rotate together with the main shaft (22).

15. 6. The milling device for an ejector pin grinding machine according to claim 5, wherein the handle cap (233) accommodates the lock nut (232), is fixed to the female thread (214) of the push rod (21), and is supported and fixed to the outer ring of the bearing (231), wherein the male thread (2331) of the handle cap (233) is fixed to the female thread (214) at one end of the push rod (21), and the handle cap (233) is supported and fixed to the bottom of the outer ring of the bearing (231).

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