Agricultural machinery accessory machining vertical drilling machine

Abstract

This utility model relates to the field of vertical drilling machine technology, and provides a vertical drilling machine for processing agricultural machinery parts. It includes a base, a column above the base, and a feed device at the front of the top of the column. The feed device includes a processing mechanism located below it. This vertical drilling machine for processing agricultural machinery parts achieves rapid tool installation and removal and precise positioning by engaging the thread on the outer side of the mounting shaft with the first threaded groove on the inner side of the cylinder, combined with the threaded connection structure of the threaded ring and the second threaded groove of the outer ring block. When changing tools, simply rotating the knob to drive the threaded ring to rotate completes the locking and unlocking of the mounting shaft, eliminating the need to operate each bolt individually, greatly simplifying the tool changing process. The elastic ring also absorbs vibration, solving the technical problems of inconvenient and time-consuming tool changing in existing technologies.

Description

Technical Field

[0001] This utility model relates to the field of vertical drilling machine technology, specifically to a vertical drilling machine for processing agricultural machinery parts. Background Technology

[0002] A vertical drilling machine is a drilling machine with a vertically arranged spindle and a fixed center position; it is a common type of metal cutting machine tool. Agricultural machinery parts refer to various components and accessories used in agricultural machinery and equipment. They are diverse and directly affect the performance and efficiency of agricultural machinery and equipment.

[0003] Currently, agricultural machinery parts are mostly made of cast iron and cast steel, with some parts being cast blanks. These parts exhibit characteristics such as high cutting resistance and frequent fluctuations in cutting force during machining, placing stringent requirements on the reliability and convenience of tool clamping. Existing tool clamping solutions for vertical drilling machines, especially older models or simple processing equipment used in small and medium-sized processing plants, employ direct bolt fastening or bolt-assisted tool holder clamping. This method uses the axial clamping force of the bolts to fix the tool to the spindle or tool holder. It has a simple structure and low manufacturing cost, and is used to some extent in low-frequency, small-batch processing scenarios. However, as the agricultural machinery manufacturing industry develops towards large-scale and refined production, the drawbacks of the aforementioned bolt clamping method have become increasingly prominent. Agricultural machinery parts processing often requires frequent changes of drill bits, reamers, taps, and other cutting tools according to different hole diameters and process requirements. When using bolt clamping, each bolt must be manually loosened and tightened. During the replacement process, the tool positioning reference must be repeatedly calibrated, and the bolt tightness relies on manual experience for control. This not only prolongs tool change auxiliary time and reduces batch processing efficiency but also easily affects processing accuracy due to positioning deviations. During drilling operations, the material properties of agricultural machinery parts and the surface condition of the blank will cause cutting vibrations, generating periodic axial and radial impact forces. These impact forces, acting on the bolt and threaded pair over a long period, will gradually disrupt the frictional balance between them, causing the bolt to gradually loosen. Tool loosening leads to increased radial runout, resulting in out-of-tolerance drilling diameters, deterioration of hole wall roughness, and even tool breakage, seriously affecting the assembly accuracy of agricultural machinery parts and increasing the scrap rate. Therefore, improvements are needed. Utility Model Content

[0004] To overcome the above-mentioned defects, the embodiments of this utility model provide a vertical drilling machine for processing agricultural machinery parts, which solves the technical problems of inconvenient and time-consuming tool replacement in related technologies.

[0005] According to one aspect, at least one embodiment of the present invention provides a vertical drilling machine for processing agricultural machinery parts, including a base, a column disposed above the base, a feed device disposed at the front of the top of the column, the feed device including a processing mechanism disposed below the feed device, the processing mechanism including a spindle disposed below the feed device, a cylinder welded below the spindle, a bottom ring block welded below the cylinder, an outer ring block welded outside the bottom ring block, a second threaded groove formed on the inner side of the lower end of the outer ring block, a connecting block welded below the bottom ring block, an elastic ring glued below the connecting block, a threaded ring threaded on the inner side of the second threaded groove, a retaining ring welded above the threaded ring, a knob welded below the threaded ring, a mounting shaft disposed inside the cylinder, the mounting shaft extending below to the lower side of the knob and having a mounting seat welded thereon, and a cutting tool welded below the mounting seat.

[0006] According to another aspect, at least one embodiment of the present invention also provides a vertical drilling machine for processing agricultural machinery parts, comprising: a first threaded groove on the inner side of the cylinder, a thread on the outer side of the top end of the mounting shaft, a first rounded corner on the top end of the mounting shaft, and a second rounded corner on the inner side of the knob.

[0007] According to another aspect, at least one embodiment of the present invention also provides a vertical drilling machine for processing agricultural machinery parts, comprising: a worktable provided on the front side of the bottom end of the column, the worktable being located below the feed device.

[0008] According to another aspect, at least one embodiment of the present invention also provides a vertical drilling machine for processing agricultural machinery parts, comprising: the cross-section of the retaining ring is a right-angled triangle, the cross-section of the elastic ring is a right-angled trapezoid, and the inner inclined surface of the retaining ring is tightly fitted with the outer inclined surface of the elastic ring.

[0009] According to another aspect, at least one embodiment of the present invention also provides a vertical drilling machine for processing agricultural machinery parts, comprising: the elastic ring being coaxially glued to the bottom end of the connecting block, the inner side of the elastic ring being in contact with the outer side wall of the mounting shaft, and the elastic ring being located directly above the retaining ring, wherein the retaining ring can compress the elastic ring axially.

[0010] According to another aspect, at least one embodiment of the present invention also provides a vertical drilling machine for processing agricultural machinery parts, comprising: a threaded ring coaxially sleeved on the outside of the mounting shaft, the outer wall of the threaded ring being threadedly connected to the second threaded groove of the outer ring block, and the top end of the threaded ring being coaxially welded and fixed to a retaining ring.

[0011] According to another aspect, at least one embodiment of the present invention also provides a vertical drilling machine for processing agricultural machinery parts, comprising: a retaining ring coaxially sleeved on the outside of the mounting shaft, the retaining ring being located between the threaded ring and the elastic ring, and the top surface of the retaining ring facing the bottom end of the elastic ring.

[0012] According to another aspect, at least one embodiment of the present invention also provides a vertical drilling machine for processing agricultural machinery parts, comprising: a first threaded groove axially opened along the inner sidewall of the cylinder, the first threaded groove engaging with the thread on the outer side of the mounting shaft.

[0013] According to another aspect, at least one embodiment of the present invention also provides a vertical drilling machine for processing agricultural machinery parts, comprising: the knob being coaxially welded to the bottom end of the threaded ring, a gap being left between the inner side wall of the knob and the outer side wall of the mounting shaft, and the second rounded corner being provided along the inner top edge of the knob.

[0014] According to another aspect, at least one embodiment of the present invention also provides a vertical drilling machine for processing agricultural machinery parts, comprising: the connecting block being coaxially welded to the bottom end of the bottom ring block, and the connecting block being located on the upper side of the elastic ring.

[0015] The beneficial effects of this utility model are as follows: In this invention, the outer thread of the mounting shaft engages with the first threaded groove on the inner side of the cylinder for positioning. Combined with the threaded connection structure between the threaded ring and the second threaded groove of the outer ring block, the tool can be quickly installed, removed, and precisely positioned. When changing the tool, simply rotate the knob to drive the threaded ring to rotate, which can lock and unlock the mounting shaft without operating each bolt individually, greatly simplifying the tool changing process. The elastic ring can also absorb vibration, solving the shortcomings of bolt-mounted tool replacement in the prior art, which is inconvenient and time-consuming. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of this utility model, the accompanying drawings used in the description of the embodiments of this utility model will be briefly introduced below. Obviously, the drawings described below are merely some exemplary embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the content of the exemplary embodiments of this utility model and these drawings without any creative effort.

[0017] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 This is a schematic diagram of the processing mechanism of this utility model; Figure 3 This is a schematic diagram of the cylindrical body of this utility model; Figure 4 This is a schematic diagram of the mounting base of this utility model; Figure 5 This is a vertical cross-sectional view of the present invention; Figure 6 for Figure 5 A magnified schematic diagram of the structure at point A in the middle.

[0018] In the diagram: 1. Base; 2. Column; 3. Feed device; 4. Machining mechanism; 401. Spindle; 402. Cylinder; 403. First threaded groove; 404. Bottom ring block; 405. Connecting block; 406. Elastic ring; 407. Outer ring block; 408. Second threaded groove; 409. Threaded ring; 410. Knob; 411. Mounting shaft; 412. Mounting seat; 413. Thread; 414. First fillet; 415. Tool; 416. Second fillet; 417. Snap ring; 5. Worktable. Detailed Implementation

[0019] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present invention and not intended to limit its scope.

[0020] To keep the drawings concise, only the parts relevant to the utility model are shown schematically in each drawing; these do not represent the actual structure of the product. Furthermore, for ease of understanding, in some drawings, only one of the components with the same structure or function is schematically shown, or only one is labeled. In this document, "a" not only means "only one," but can also mean "more than one," and "several" includes "two" and "more than two."

[0021] In this document, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to mechanical connections or electrical connections; they can refer to direct connections or indirect connections through an intermediate medium; and they can refer to the internal connection between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0022] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0023] In the description of this embodiment, terms such as "upper," "lower," "left," and "right" are based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of description and simplification of operation, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0024] Furthermore, in the description of this application, the terms "first," "second," etc., are used only to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0025] like Figures 1-6 As shown, this invention illustrates a vertical drilling machine for processing agricultural machinery parts according to one embodiment of the present invention. It includes a base 1, a column 2 positioned above the base 1, a feed device 3 positioned at the front of the top of the column 2, and a processing mechanism 4 positioned below the feed device 3. The processing mechanism 4 includes a spindle 401 positioned below the feed device 3, a cylinder 402 welded below the spindle 401, a bottom ring block 404 welded below the cylinder 402, and an outer ring block 407 welded to the outer side of the bottom ring block 404. A second threaded groove 408 is provided on the inner side of the lower end of 07. A connecting block 405 is welded below the bottom ring block 404. An elastic ring 406 is glued below the connecting block 405. A threaded ring 409 is installed on the inner side of the second threaded groove 408. A retaining ring 417 is welded above the threaded ring 409. A knob 410 is welded below the threaded ring 409. An installation shaft 411 is provided inside the cylinder 402. The lower part of the installation shaft 411 extends to the lower side of the knob 410 and is welded to a mounting seat 412. A cutting tool 415 is welded below the mounting seat 412.

[0026] The base 1 supports the column 2, which in turn carries the feed device 3 and the worktable 5. The feed device 3 drives the machining mechanism 4. In the machining mechanism 4, the spindle 401 drives the cylinder 402 to rotate. The cylinder 402 is connected to the outer ring block 407 and the connecting block 405 via the bottom ring block 404. The connecting block 405 fixes the elastic ring 406. The threaded ring 409 rotates along the second threaded groove 408 of the outer ring block 407, causing the retaining ring 417 to press against the elastic ring 406. The mounting shaft 411 is positioned by the thread 413 and the first threaded groove 403. The mounting seat 412 fixes the cutting tool 415. Finally, the spindle 401 drives the cutting tool 415 to complete the machining.

[0027] By engaging and positioning the thread 413 on the outer side of the mounting shaft 411 with the first threaded groove 403 on the inner side of the cylinder 402, and cooperating with the threaded connection structure of the threaded ring 409 and the second threaded groove 408 of the outer ring block 407, the tool 415 can be quickly installed, removed, and precisely positioned. When changing the tool, only the knob 410 needs to be turned to drive the threaded ring to rotate, which can complete the locking and unlocking of the mounting shaft 411. There is no need to operate each bolt individually, which greatly simplifies the tool changing process. The elastic ring 406 can also absorb the vibration force, which solves the disadvantages of bolt-mounted tool replacement in the background technology, which is inconvenient and time-consuming.

[0028] like Figures 1-6 As shown, on the other hand, this utility model also provides a vertical drilling machine for processing agricultural machinery parts. The inner side of the cylinder 402 is provided with a first threaded groove 403, the outer side of the top end of the mounting shaft 411 is provided with a thread 413, the top end of the mounting shaft 411 is provided with a first fillet 414, and the inner side of the knob 410 is provided with a second fillet 416.

[0029] In some examples, the first threaded groove 403 on the inner side of the cylinder 402 provides an installation reference for the mounting shaft 411. The thread 413 at the top of the mounting shaft 411 engages with the first threaded groove 403, thereby achieving axial positioning and fixation of the mounting shaft 411 within the cylinder 402. The first fillet 414 guides the mounting shaft 411 to smoothly insert into the cylinder 402, reducing assembly resistance; the second fillet 416 prevents the mounting shaft 411 from rubbing against the inner top edge of the knob 410, ensuring smooth movement of the mounting shaft 411.

[0030] like Figures 1-6 As shown, on the other hand, this utility model also provides a vertical drilling machine for processing agricultural machinery parts, wherein a worktable 5 is provided on the front side of the bottom end of the column 2, and the worktable 5 is located below the feed device 3.

[0031] In some examples, the worktable 5 at the front of the bottom end of the column 2 is located below the feed device 3, providing a support platform for the workpiece to be processed. During processing, the worktable 5 fixes the workpiece and aligns the processing position with the tool 415 of the processing mechanism 4. The feed device 3 drives the processing mechanism 4 to feed downward, and the tool 415 performs drilling operations on the workpiece on the worktable 5. The position of the worktable 5 is adapted to the processing stroke of the processing mechanism 4.

[0032] like Figures 1-6 As shown, on the other hand, this utility model also provides a vertical drilling machine for processing agricultural machinery parts. The cross-section of the retaining ring 417 is a right-angled triangle, and the cross-section of the elastic ring 406 is a right-angled trapezoid. The inner inclined surface of the retaining ring 417 is closely fitted with the outer inclined surface of the elastic ring 406.

[0033] In some examples, the retaining ring 417 has a right-angled triangle cross-section, and the elastic ring 406 has a right-angled trapezoid, with their inclined surfaces tightly fitted together. When the knob 410 is rotated to move the threaded ring 409 upward, the inner inclined surface of the retaining ring 417 presses against the outer inclined surface of the elastic ring 406, converting the axial force of the threaded ring 409 into the radial clamping force of the elastic ring 406, thereby enhancing the clamping stability of the elastic ring 406 on the mounting shaft 411.

[0034] like Figures 1-6 As shown, on the other hand, this utility model also provides a vertical drilling machine for processing agricultural machinery parts. The elastic ring 406 is coaxially glued to the bottom end of the connecting block 405. The inner side of the elastic ring 406 is in contact with the outer side wall of the mounting shaft 411, and the elastic ring 406 is located directly above the retaining ring 417. The retaining ring 417 can compress the elastic ring 406 axially.

[0035] In some examples, the elastic ring 406 is coaxially glued to the bottom of the connecting block 405 and its inner side is attached to the mounting shaft 411, with the retaining ring 417 directly below the elastic ring 406. When the threaded ring 409 moves the retaining ring 417 upward, the retaining ring 417 axially compresses the elastic ring 406. After the elastic ring 406 deforms, it tightly wraps around the mounting shaft 411, absorbing processing vibrations and limiting the shaking of the mounting shaft 411, thus preventing the mounting shaft 411 from loosening.

[0036] like Figures 1-6 As shown, on the other hand, this utility model also provides a vertical drilling machine for processing agricultural machinery parts, wherein a threaded ring 409 is coaxially sleeved on the outside of the mounting shaft 411, the outer wall of the threaded ring 409 is threadedly connected to the second threaded groove 408 of the outer ring block 407, and the top end of the threaded ring 409 is coaxially welded and fixed to the retaining ring 417.

[0037] In some examples, the threaded ring 409 is coaxially sleeved on the outside of the mounting shaft 411, and its outer wall is threadedly connected to the second threaded groove 408 of the outer ring block 407. A retaining ring 417 is welded to its top. When the knob 410 is rotated, the threaded ring 409 moves axially along the second threaded groove 408, which synchronously drives the retaining ring 417 to move up and down, thereby realizing the compression and release of the elastic ring 406 by the retaining ring 417, and completing the locking and unlocking of the mounting shaft 411.

[0038] like Figures 1-6 As shown, on the other hand, this utility model also provides a vertical drilling machine for processing agricultural machinery parts. The retaining ring 417 is coaxially sleeved on the outside of the mounting shaft 411. The retaining ring 417 is located between the threaded ring 409 and the elastic ring 406, and the top surface of the retaining ring 417 is set facing the bottom end of the elastic ring 406.

[0039] In some examples, the retaining ring 417 is coaxially sleeved on the outside of the mounting shaft 411, positioned between the threaded ring 409 and the elastic ring 406, with its top surface facing the bottom of the elastic ring 406. When the threaded ring 409 moves upward, the retaining ring 417 moves upward accordingly and contacts the bottom of the elastic ring 406; continued upward movement compresses the elastic ring 406. When the threaded ring 409 moves downward, the retaining ring 417 disengages from the elastic ring 406, and the elastic ring 406 returns to its original shape.

[0040] like Figures 1-6 As shown, on the other hand, this utility model also provides a vertical drilling machine for processing agricultural machinery parts, wherein the first threaded groove 403 is axially opened along the inner side wall of the cylinder 402, and the first threaded groove 403 engages with the thread 413 on the outer side of the mounting shaft 411.

[0041] In some examples, the first threaded groove 403 is axially formed along the inner wall of the cylinder 402 and engages with the thread 413 on the outer side of the mounting shaft 411. When the spindle 401 drives the cylinder 402 to rotate, the mounting shaft 411 is driven to rotate synchronously through the transmission between the first threaded groove 403 and the thread 413. At the same time, the thread engagement achieves axial positioning of the mounting shaft 411 within the cylinder 402, preventing axial movement of the mounting shaft 411 during machining.

[0042] like Figures 1-6 As shown, on the other hand, this utility model also provides a vertical drilling machine for processing agricultural machinery parts. The knob 410 is coaxially welded to the bottom end of the threaded ring 409. A gap is left between the inner side wall of the knob 410 and the outer side wall of the mounting shaft 411. The second rounded corner 416 is set along the inner top edge of the knob 410.

[0043] In some examples, the knob 410 is welded to the bottom of the threaded ring 409, with a gap between its inner side and the mounting shaft 411 to prevent interference. Rotating the knob 410 causes the threaded ring 409 to rotate along the second threaded groove 408. The second fillet 416 is located at the top edge of the inner side of the knob 410, guiding the mounting shaft 411 to pass smoothly through the knob 410 and reducing assembly wear between the mounting shaft 411 and the knob 410.

[0044] like Figures 1-6 As shown, on the other hand, this utility model also provides a vertical drilling machine for processing agricultural machinery parts, wherein the connecting block 405 is coaxially welded to the bottom end of the bottom ring block 404, and the connecting block 405 is located on the upper side of the elastic ring 406.

[0045] In some examples, the connecting block 405 is coaxially welded to the bottom end of the bottom ring block 404, located above the elastic ring 406, providing mounting support for the elastic ring 406. The bottom ring block 404 is connected to the main shaft 401 through the cylinder 402. The power of the main shaft 401 is transmitted to the connecting block 405 through the cylinder 402 and the bottom ring block 404. The connecting block 405 stably supports the elastic ring 406, ensuring the structural stability of the elastic ring 406 during compression.

[0046] Working principle and usage process of this utility model: Check the tightness of the connection between the base 1 and the column 2. Fix the agricultural machinery parts to be processed on the worktable 5. Adjust the position of the worktable so that the processing hole is aligned with the bottom of the processing mechanism 4. Lock the worktable. Adjust the initial height of the spindle 401 to a safe position using the feed device 3. Align the top of the mounting shaft 411 with the bottom opening of the cylinder 402. Use the first fillet 414 to guide the insertion and slowly rotate it so that the outer thread 413 precisely engages with the first thread groove 403 on the inner side of the cylinder. Screw it in until the middle section of the mounting shaft 411 is flush with the bottom of the cylinder. Place your palm on the end face of the knob 410 and rotate the knob clockwise at a uniform speed to drive the rotation. The threaded ring 409 moves upward spirally along the second threaded groove 408 of the outer ring block 407; observe the position of the retaining ring 417, and when the top of the retaining ring contacts the bottom of the elastic ring 406, continue to rotate the knob until obvious resistance is felt. At this time, the elastic ring 406 is compressed and undergoes radial deformation, tightly fitting the outer side of the mounting shaft 411 to form a clamp; set the spindle speed and feed rate through the feed device 3, start the equipment, the spindle drives the tool 415 to rotate, and at the same time the feed device drives the machining mechanism 4 to feed downward; the elastic ring 406 absorbs cutting vibration until the hole machining is completed, and the feed device drives the spindle to reset; Turn the knob counterclockwise to move the threaded ring 409 downward along the second threaded groove 408. The retaining ring 417 moves downward and disengages from the elastic ring 406. The elastic ring 406 returns to its natural state, releasing the radial constraint force on the mounting shaft 411. Rotate the mounting shaft 411 to gradually unscrew the thread 413 along the first threaded groove 403. After the top of the mounting shaft 411 is completely detached from the cylinder 402, remove the assembly of the mounting shaft 411, mounting base 412, and tool 415 as a whole and place it on the tool rack.

[0047] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0048] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

[0049] It should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solution of this utility model without departing from the spirit and scope of the technical solution of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.

Claims

1. A vertical drilling machine for processing agricultural machinery parts, comprising a base (1), characterized in that: A column (2) is provided above the base (1). A feeding device (3) is provided on the front side of the top of the column (2). The feeding device (3) includes a processing mechanism (4) located below the feeding device (3). The processing mechanism (4) includes a spindle (401) located below the feeding device (3). A cylinder (402) is welded below the spindle (401). A bottom ring block (404) is welded below the cylinder (402). An outer ring block (407) is welded to the outside of the bottom ring block (404). A second threaded groove (408) is opened on the inner side of the lower end of the outer ring block (407). A connecting block (405) is welded below the bottom ring block (404), and an elastic ring (406) is glued below the connecting block (405). A threaded ring (409) is installed on the inner thread of the second threaded groove (408). A retaining ring (417) is welded above the threaded ring (409), and a knob (410) is welded below the threaded ring (409). An installation shaft (411) is provided inside the cylinder (402). The installation shaft (411) extends below the knob (410) and is welded to a mounting seat (412). A cutting tool (415) is welded below the mounting seat (412).

2. The vertical drilling machine for processing agricultural machinery parts according to claim 1, characterized in that: The inner side of the cylinder (402) is provided with a first threaded groove (403), the outer side of the top end of the mounting shaft (411) is provided with a thread (413), the top end of the mounting shaft (411) is provided with a first fillet (414), and the inner side of the knob (410) is provided with a second fillet (416).

3. The vertical drilling machine for processing agricultural machinery parts according to claim 1, characterized in that: A workbench (5) is provided on the front side of the bottom end of the column (2), and the workbench (5) is located below the feeding device (3).

4. The vertical drilling machine for processing agricultural machinery parts according to claim 1, characterized in that: The cross-section of the retaining ring (417) is a right triangle, and the cross-section of the elastic ring (406) is a right trapezoid. The inner inclined surface of the retaining ring (417) is in close contact with the outer inclined surface of the elastic ring (406).

5. A vertical drilling machine for processing agricultural machinery parts according to claim 1, characterized in that: The elastic ring (406) is coaxially glued to the bottom end of the connecting block (405). The inner side of the elastic ring (406) is in contact with the outer side wall of the mounting shaft (411), and the elastic ring (406) is located directly above the retaining ring (417). The retaining ring (417) can axially compress the elastic ring (406).

6. A vertical drilling machine for processing agricultural machinery parts according to claim 1, characterized in that: The threaded ring (409) is coaxially sleeved on the outside of the mounting shaft (411). The outer wall of the threaded ring (409) is threadedly connected to the second threaded groove (408) of the outer ring block (407). The top end of the threaded ring (409) is coaxially welded and fixed to the retaining ring (417).

7. A vertical drilling machine for processing agricultural machinery parts according to claim 1, characterized in that: The retaining ring (417) is coaxially sleeved on the outside of the mounting shaft (411). The retaining ring (417) is located between the threaded ring (409) and the elastic ring (406). The top surface of the retaining ring (417) is set facing the bottom end of the elastic ring (406).

8. A vertical drilling machine for processing agricultural machinery parts according to claim 2, characterized in that: The first threaded groove (403) is axially opened along the inner sidewall of the cylinder (402), and the first threaded groove (403) meshes with the thread (413) on the outer side of the mounting shaft (411).

9. A vertical drilling machine for processing agricultural machinery parts according to claim 2, characterized in that: The knob (410) is coaxially welded to the bottom end of the threaded ring (409). There is a gap between the inner wall of the knob (410) and the outer wall of the mounting shaft (411). The second rounded corner (416) is set along the inner top edge of the knob (410).

10. A vertical drilling machine for processing agricultural machinery parts according to claim 1, characterized in that: The connecting block (405) is coaxially welded to the bottom end of the bottom ring block (404), and the connecting block (405) is located on the upper side of the elastic ring (406).

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