A milling equipment for the production and processing of crane parts

Abstract

The present invention belongs to the technical field of milling cutter seats, and discloses a milling equipment for the production and processing of crane parts, including an upper connecting seat and a milling cutter body. The bottom of the upper connecting seat is connected to a lower connecting seat by a bearing, and a connecting claw one is also fixedly installed at the bottom of the upper connecting seat. It further includes: a clamping assembly, which is arranged at the bottom of the lower connecting seat. In the above solution, an operator presses the circular cylinder with one hand, drives the cylinder one to move downward to the bottom through the connecting block. At this time, the inclined surface will squeeze the inclined block and compress and store the energy of the spring on the annular guard plate. When the second annular groove and the limiting block are at the same height, the operator releases the circular cylinder, the inclined block will squeeze the inclined surface and drive the cylinder one and the circular cylinder to move upward and reset, so that the first annular groove squeezes the limiting block and one end of the limiting block is clamped into the second annular groove, thus avoiding the situation that when the operator replaces the tool, the accidental rotation of the upper connecting seat will drive the accidental rotation of the lower connecting seat.

Description

Technical Field

[0001] The present invention belongs to the technical field of milling cutter seats, and specifically relates to a milling equipment for the production and processing of crane parts. Background Art

[0002] The spindle of a vertical milling machine is vertically placed. This structure gives it advantages in processing vertical planes, step surfaces, etc. Its milling cutter can directly feed vertically downward, which is very convenient for some cases where milling processing is required at the top of the part. For example, when milling the installation plane at the top of the crane boom, the vertical milling machine can process more efficiently. Usually, during the part processing of the milling machine, the cutter head needs to be replaced, and the milling cutter of the vertical milling machine is usually manually replaced by the operator. When the operator operates irregularly, that is, when the power supply is not completely turned off, which may cause the cutter seat to rotate accidentally during the process of replacing the cutter head. At this time, if the cutter head is not fully fixed to the cutter seat, the accidental rotation of the cutter seat may cause the unfixed cutter head to fly off instantly and pose a great threat to the personal safety of the operator. At the same time, if the flying cutter head hits the crane part being processed, it will also damage the existing machining accuracy of the part, resulting in the scrapping of the part and increasing the production cost. Therefore, to solve the above problems, a milling equipment for the production and processing of crane parts is proposed. Summary of the Invention

[0003] To solve the problems raised in the above background art, the present invention provides a milling equipment for the production and processing of crane parts, which solves the problem that the cutter head of the existing milling equipment will be accidentally thrown off due to the operator's misoperation during replacement.

[0004] To achieve the above object, the present invention provides the following technical solution: A milling equipment for the production and processing of crane parts, including an upper connecting seat and a milling cutter body. The bottom of the upper connecting seat is connected to a lower connecting seat through a bearing. The bottom of the upper connecting seat is also fixedly installed with a connecting claw one. It further includes: a clamping assembly, which is arranged at the bottom of the lower connecting seat for installing the milling cutter body; a connecting claw two, which is spline-connected inside the lower connecting seat and can move upward to be in transmission connection with the connecting claw one; an adjusting assembly, which is installed in the middle of the lower connecting seat for controlling the upward movement and fixation of the connecting claw two; and an annular cylinder is movably sleeved outside the lower connecting seat.

[0005] The clamping assembly includes a second cylinder fixedly installed at the bottom of the lower connecting seat. A first cylinder is movably sleeved outside the second cylinder and is located inside the lower connecting seat. A connecting block is movably connected to the bottom of the lower connecting seat. A spring combination screw is threadedly connected to the bottom of the lower connecting seat. An inclined block is movably sleeved outside the spring combination screw. An inclined surface is provided on the connecting block. The inclined block can squeeze the inclined surface under the elastic force of the spring part on the spring combination screw and make the connecting block have an upward trend. A notch is provided on the first cylinder. One end of the connecting block is fixedly clamped on the notch. The other end of the connecting block is fixedly connected to the circular cylinder through a bolt. A limiting block is movably clamped on the second cylinder. In the initial state, one end of the limiting block abuts against the inner wall of the first annular groove and enables the other end of the limiting block to be inserted into the second annular groove. The first annular groove is provided on the inner wall of the first cylinder. The conical blocks are annularly and arrayedly provided on the inner wall of the second cylinder;

[0006] An annular groove two is provided on the milling cutter body. The conical grooves two are annularly and arrayedly provided on the annular groove two;

[0007] When the milling cutter body moves upward, it can drive the conical groove two to engage with the conical block.

[0008] Preferably, a chamfer is provided on the edge of the conical groove two. When the milling cutter body moves upward, it can squeeze the limiting block to make it move in the horizontal direction.

[0009] Preferably, an inclined surface is provided at the bottom of the connecting block. An annular guard plate located below the spring combination screw is fixedly connected to the bottom of the lower connecting seat.

[0010] Preferably, the second connecting claw includes a connecting part at the top, a columnar part in the middle, and a spline shaft part at the bottom. The top of the second connecting claw can be engaged with the bottom of the first connecting claw.

[0011] Preferably, the adjusting assembly includes a first rod symmetrically and movably connected inside the lower connecting seat. A second rod with a width smaller than that of the first rod is fixedly connected to the opposite ends of the two first rods. An elastic member is movably connected to the middle of the second connecting claw. The two ends of the elastic member are elastically connected to the two first rods respectively. A third rod is fixedly connected inside the lower connecting seat. A first bayonet, a channel, and a second bayonet are provided on the third rod. The width of the channel is smaller than the widths of the first bayonet, the second bayonet, and the first rod. The second rod can vertically move in the channel;

[0012] When one end of the first rod is inserted into the first bayonet, the first rod can drive the adjusting assembly to separate from the first connecting claw through the elastic member;

[0013] When one end of the first rod is inserted into the second bayonet, the first rod can drive the adjusting assembly to engage with the first connecting claw through the elastic member.

[0014] Preferably, the elastic member includes a first spring rod and a second spring rod movably connected to the middle of the second connecting claw;

[0015] Both ends of the first spring rod and the second spring rod are elastically connected to two first rods respectively;

[0016] When the lower connecting seat and the second connecting claw rotate at high speed, the first spring rod and the second spring rod can move away from each other.

[0017] Preferably, a vertical hole and a horizontal hole communicating with the vertical hole are formed in the second rod;

[0018] A stop rod is fixedly connected to the top end of the circular ring cylinder, and the top end of the stop rod is spherical and has a diameter larger than the diameter of the rod part of the stop rod;

[0019] The stop rod can move vertically in the vertical hole, and in the initial state, the stop rod can move horizontally in the horizontal hole;

[0020] When the circular ring cylinder drives the stop rod to move downward, the stop rod can be separated from the vertical hole, and at this time, the projection of the spherical part at the top end of the stop rod coincides with the second rod.

[0021] Preferably, a rubber blocking skirt for blocking the connection between the upper connecting seat and the lower connecting seat is fixedly connected to the outside of the upper connecting seat.

[0022] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0023] In the above solution, an operator presses the circular ring cylinder with one hand to drive the first cylinder to move downward to the bottom through the connecting block. At this time, the inclined plane will squeeze the inclined block and compress and store the spring on the annular guard plate. And the first annular groove and the limiting block are at the same height. The operator uses the other hand to clamp the milling cutter body into the second cylinder. During the upward movement of the milling cutter body, the chamfer and the outer wall of the milling cutter body will push one end of the limiting block into the first annular groove. When the second annular groove and the limiting block are at the same height, the operator releases the circular ring cylinder. At this time, the spring on the annular guard plate pushes the inclined block to move, and the inclined block will squeeze the inclined plane and drive the first cylinder and the circular ring cylinder to move upward and reset by the connecting block, so that the first annular groove squeezes the limiting block and makes one end of the limiting block snap into the second annular groove, thus avoiding the situation that when the operator replaces the tool, the accidental rotation of the upper connecting seat will drive the accidental rotation of the lower connecting seat;

[0024] In the above solution, the operator presses two rod bodies II with both hands to respectively push two rod bodies I to move towards each other, so that rod body I disengages from rod body II. Subsequently, rod body II is moved upward, and rod body I and the elastic member drive connecting claw II to move upward to engage with connecting claw I. When rod body II moves upward along the channel to the same height as bayonet II, the pressing on rod body II is released. At this time, under the elastic force of the elastic member, rod body I is respectively snapped into bayonet II again. At this time, the upper connecting seat, the elastic member and connecting claw II are fixed, so that the upper connecting seat can drive the lower connecting seat to rotate through connecting claw I during rotation. And since the operator needs to press two rod bodies II with both hands, it avoids the dangerous situation that may occur when the operator operates with one hand;

[0025] In the above solution, when the circular tube moves downward to drive the stop rod to move downward so that the spherical part of the stop rod disengages from the vertical hole, when the operator presses rod body II at this time, it will be blocked by the spherical part of the stop rod and rod body I cannot be disengaged from bayonet I, thus avoiding the situation that connecting claw II is connected to connecting claw I due to an unexpected situation when the operator installs the milling cutter body through the clamping assembly. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 is a schematic diagram of the overall structure of the present invention;

[0027] Figure 2 is a schematic front sectional view structure diagram of the present invention;

[0028] Figure 3 is Figure 2 an enlarged view of part A in

[0029] Figure 4 is Figure 3 an enlarged view of part B in

[0030] Figure 5 is Figure 2 an enlarged view of part C in

[0031] Figure 6 is a schematic diagram of the structure of connecting claw II of the present invention;

[0032] Figure 7 is a partial sectional view structure diagram of cylinder II of the present invention;

[0033] Figure 8 is a schematic diagram of the structure of the adjusting assembly of the present invention.

[0034] In the figure: 1. Upper connecting seat; 11. First connecting claw; 12. Rubber retaining skirt; 2. Lower connecting seat; 21. Circular tube; 211. Retaining rod; 22. Annular guard plate; 3. Clamping assembly; 31. Spring combination screw; 32. Inclined block; 33. Connecting block; 331. Inclined plane; 34. First cylinder; 341. Notch; 35. First annular groove; 36. Second cylinder; 361. Tapered block; 37. Limiting block; 4. Milling cutter body; 41. Second annular groove; 42. Second tapered groove; 421. Chamfer; 5. Second connecting claw; 6. Adjusting assembly; 61. First rod; 62. Second rod; 621. Vertical hole; 622. Horizontal hole; 63. Elastic member; 631. First spring rod; 632. Second spring rod; 64. Third rod; 65. First bayonet; 66. Channel; 67. Second bayonet. Detailed implementation mode

[0035] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0036] As Figures 1 to 8 shown, the present invention provides a milling device for the production and processing of crane parts, including an upper connecting seat 1 and a milling cutter body 4. The bottom of the upper connecting seat 1 is connected to the lower connecting seat 2 by a bearing. A first connecting claw 11 is also fixedly installed at the bottom of the upper connecting seat 1. It further includes: a clamping assembly 3, which is arranged at the bottom of the lower connecting seat 2 for installing the milling cutter body 4; a second connecting claw 5, which is spline-connected to the inside of the lower connecting seat 2 and the second connecting claw 5 can move upward to be in driving connection with the first connecting claw 11; an adjusting assembly 6, which is installed in the middle of the lower connecting seat 2 for controlling the upward movement and fixation of the second connecting claw 5; a circular tube 21 is movably sleeved outside the lower connecting seat 2;

[0037] The clamping assembly 3 includes a cylinder body two 36 fixedly installed at the bottom of the lower connecting seat 2. A cylinder body one 34 located inside the lower connecting seat 2 is movably sleeved outside the cylinder body two 36. A connecting block 33 is movably connected to the bottom of the lower connecting seat 2. A spring combination screw 31 is threadedly connected to the bottom of the lower connecting seat 2. An inclined block 32 is movably sleeved outside the spring combination screw 31. An inclined surface 331 is provided on the connecting block 33. The inclined block 32 can be pushed by the elastic force of the spring part on the spring combination screw 31 to squeeze the inclined surface 331 and make the connecting block 33 have an upward trend. A notch 341 is provided on the cylinder body one 34. One end of the connecting block 33 is fixedly clamped in the notch 341. The other end of the connecting block 33 is fixedly connected to the circular ring cylinder 21 through a bolt. A limiting block 37 is movably clamped on the cylinder body two 36. In the initial state, one end of the limiting block 37 abuts against the inner wall of the annular groove one 35, and the other end of the limiting block 37 can be inserted into the annular groove two 41. An annular groove one 35 is provided on the inner wall of the cylinder body one 34. Conical blocks 361 are annularly arrayed on the inner wall of the cylinder body two 36;

[0038] An annular groove two 41 is provided on the milling cutter body 4. Conical grooves two 42 are annularly arrayed on the annular groove two 41; When the milling cutter body 4 moves upward, it can drive the conical grooves two 42 to engage with the conical blocks 361;

[0039] A chamfer 421 is provided on the edge of the conical groove two 42. When the milling cutter body 4 moves upward, it can squeeze the limiting block 37 to make it move in the horizontal direction;

[0040] An inclined surface 331 is provided at the bottom of the connecting block 33. An annular guard plate 22 located below the spring combination screw 31 is fixedly connected to the bottom of the lower connecting seat 2;

[0041] The connecting claw two 5 includes a connecting part at the top, a columnar part in the middle, and a spline shaft part at the bottom. The top of the connecting claw two 5 can be engaged with the bottom of the connecting claw one 11;

[0042] With the above scheme, by an operator pressing the circular ring cylinder 21 with one hand to drive the cylinder body one 34 to move downward to the bottommost position through the connecting block 33, at this time the inclined surface 331 will squeeze the inclined block 32 and compress and store the elastic force of the spring on the annular guard plate 22, and the annular groove one 35 and the limiting block 37 are at the same height. The operator uses the other hand to insert the milling cutter body 4 into the cylinder body two 36. During the upward movement of the milling cutter body 4, the chamfer 421 and the outer wall of the milling cutter body 4 will push one end of the limiting block 37 into the annular groove one 35. When the annular groove two 41 and the limiting block 37 are at the same height, the operator releases the circular ring cylinder 21. At this time, the spring on the annular guard plate 22 pushes the inclined block 32 to move. The inclined block 32 will squeeze the inclined surface 331 and make the connecting block 33 drive the cylinder body one 34 and the circular ring cylinder 21 to move upward and reset, so that the annular groove one 35 squeezes the limiting block 37 and makes one end of the limiting block 37 snap into the annular groove two 41, thus avoiding the situation that when the operator replaces the tool, the accidental rotation of the upper connecting seat 1 will drive the accidental rotation of the lower connecting seat 2.

[0043] As Figure 1 , Figure 2 , Figure 5 , Figure 6 and Figure 8 shown, the adjusting assembly 6 includes a first rod 61 symmetrically and movably connected inside the lower connecting seat 2. At the opposite ends of the two first rods 61, a second rod 62 with a width smaller than that of the first rod 61 is fixedly connected. The middle of the second connecting claw 5 is movably connected with an elastic member 63. The two ends of the elastic member 63 are elastically connected to the two first rods 61 respectively. Inside the lower connecting seat 2, a third rod 64 is fixedly connected. On the third rod 64, a first bayonet 65, a channel 66 and a second bayonet 67 are provided. The width of the channel 66 is smaller than the widths of the first bayonet 65, the second bayonet 67 and the first rod 61. The second rod 62 can vertically move in the channel 66;

[0044] When one end of the first rod 61 is inserted into the first bayonet 65, the first rod 61 can drive the adjusting assembly 6 to separate from the first connecting claw 11 through the elastic member 63;

[0045] When one end of the first rod 61 is inserted into the second bayonet 67, the first rod 61 can drive the adjusting assembly 6 to engage with the first connecting claw 11 through the elastic member 63;

[0046] With the above solution, by the operator pressing the two second rods 62 with both hands to respectively push the two first rods 61 to move towards each other, the first rod 61 can be separated from the second rod 62. Subsequently, the second rod 62 is moved upward and the first connecting claw 5 is driven to move upward and engage with the first connecting claw 11 through the first rod 61 and the elastic member 63. When the second rod 62 moves upward along the channel 66 to the same height as the second bayonet 67, the pressing on the second rod 62 is released. At this time, under the elastic force of the elastic member 63, the first rod 61 is respectively inserted into the second bayonet 67 again. At this time, the upper connecting seat 1, the elastic member 63 and the second connecting claw 5 are fixed, so that when the upper connecting seat 1 rotates, it can drive the lower connecting seat 2 to rotate through the first connecting claw 11. And because the operator needs to press the two second rods 62 with both hands, it avoids the dangerous situation that may occur when the operator operates with one hand;

[0047] When the lower connecting seat 2 rotates at a high speed, due to the action of centrifugal force, there is also a tendency for the top of the inclined block 32 to press against the inclined surface 331, so as to ensure that when the device operates, the milling cutter body 4 can be stably locked in the second cylinder 36.

[0048] As Figure 5 , Figure 6 and 8As shown in the figure, the elastic member 63 includes a first spring rod 631 and a second spring rod 632 that are movably connected to the middle of the second connecting claw 5; both ends of the first spring rod 631 and the second spring rod 632 are elastically connected to two first rod bodies 61 respectively; the center of gravity of the first spring rod 631 is close to one of the first rod bodies 61, and the center of gravity of the second spring rod 632 is close to the other second rod body 62; when the lower connecting seat 2 and the second connecting claw 5 rotate at high speed, the first spring rod 631 and the second spring rod 632 can move away from each other;

[0049] With the above scheme, when the whole device rotates, the first spring rod 631 and the second spring rod 632 can move away from each other, thus avoiding the situation that the whole device is unstable during rotation due to the deviation of the first spring rod 631 or the second spring rod 632 when only one of the first spring rod 631 or the second spring rod 632 is provided.

[0050] As Figure 2 、 Figure 5 、 Figure 6 and Figure 8 shown in the figure, a vertical hole 621 and a horizontal hole 622 communicating with the vertical hole 621 are formed in the second rod body 62;

[0051] A stop rod 211 is fixedly connected to the top end of the circular ring cylinder 21, and the top end of the stop rod 211 is spherical and has a diameter larger than the diameter of the rod body part of the stop rod 211;

[0052] The stop rod 211 can move vertically in the vertical hole 621, and in the initial state, the stop rod 211 can move horizontally in the horizontal hole 622;

[0053] When the circular ring cylinder 21 drives the stop rod 211 to move downward, the stop rod 211 can be separated from the vertical hole 621, and at this time, the projection of the spherical part at the top end of the stop rod 211 coincides with the second rod body 62;

[0054] A rubber retaining skirt 12 for shielding the connection between the upper connecting seat 1 and the lower connecting seat 2 is fixedly connected to the outside of the upper connecting seat 1;

[0055] With the above scheme, when the circular ring cylinder 21 drives the stop rod 211 to move downward, the spherical part of the stop rod 211 is separated from the vertical hole 621. At this time, when the operator presses the second rod body 62, the operator will be blocked by the spherical part of the stop rod 211 and cannot separate the first rod body 61 from the first bayonet 65, thus avoiding the situation that the second connecting claw 5 is connected to the first connecting claw 11 due to an accident when the operator installs the milling cutter body 4 through the clamping assembly 3.

[0056] The working principle and usage process of the present invention:

[0057] First, the operator presses the annular cylinder 21 with one hand to drive the cylinder body 1 34 downward to the bottom through the connecting block 33. At this time, the inclined surface 331 will squeeze the inclined block 32 and compress the spring on the annular guard plate 22. At this time, the annular groove 1 35 and the limit block 37 are at the same height. Then the operator uses the other hand to clamp the milling cutter body 4 into the cylinder body 2 36. During the upward movement of the milling cutter body 4, the chamfer 421 and the outer wall of the milling cutter body 4 will push one end of the limit block 37 into the annular groove 1 35. When the annular groove When the second 41 and the limit block 37 are at the same height, the operator releases the annular cylinder 21. At this time, the spring on the annular guard plate 22 pushes the inclined block 32 to move, and the inclined block 32 will squeeze the inclined surface 331 and make the connecting block 33 drive the cylinder 1 34 and the annular cylinder 21 to reset upward, so that the annular groove 1 35 squeezes the limit block 37 and one end of the limit block 37 is stuck in the annular groove 2 41, thereby preventing the operator from accidentally rotating the upper connecting seat 1 and driving the lower connecting seat 2 to rotate accidentally when changing the tool;

[0058] Then the operator presses the two second rod bodies 62 with both hands and pushes the two first rod bodies 61 to move toward each other, so that the first rod body 61 is separated from the second rod body 62, and then moves the second rod body 62 upward and drives the connecting claw 25 to move upward and engage with the connecting claw 11 through the first rod body 61 and the elastic member 63. When the second rod body 62 moves up along the channel 66 to the same height as the second bayonet 67, the pressure on the second rod body 62 is released. At this time, under the elastic force of the elastic member 63, the first rod body 61 is respectively engaged in the second bayonet 67. At this time, the upper connecting seat 1, the elastic member 63 and the second connecting claw 5 are fixed, so that the upper connecting seat 1 can drive the lower connecting seat 2 to rotate through the connecting claw 11 when rotating;

[0059] When the annular cylinder 21 moves downward, it will also drive the blocking rod 211 downward so that the spherical part of the blocking rod 211 will be separated from the vertical hole 621. At this time, when the operator presses the rod body 2 62, it will be blocked by the spherical part of the blocking rod 211 and the rod body 1 61 cannot be separated from the bayonet 1 65, thereby avoiding the operator from encountering an unexpected situation when installing the milling cutter body 4 through the clamping assembly 3, which may cause the connecting claw 2 5 to be connected with the connecting claw 11.

[0060] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0061] Although embodiments of the present invention have been shown and described, those of ordinary skill in the art will appreciate that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A milling device for the production and processing of crane parts, including an upper connecting seat (1) and a milling cutter body (4). The bottom of the upper connecting seat (1) is connected to a lower connecting seat (2) by a bearing. The bottom of the upper connecting seat (1) is also fixedly installed with a first connecting claw (11), and it is characterized in that, It further includes: A clamping assembly (3) which is arranged at the bottom of the lower connecting seat (2) for mounting the milling cutter body (4); A second connecting claw (5) which is spline-connected inside the lower connecting seat (2) and the second connecting claw (5) can move upward to be in driving connection with the first connecting claw (11); An adjusting assembly (6) which is mounted in the middle of the lower connecting seat (2) for controlling the upward movement and fixation of the second connecting claw (5); A circular cylinder (21) is movably sleeved outside the lower connecting seat (2); The clamping assembly (3) includes a second cylinder body (36) fixedly mounted at the bottom of the lower connecting seat (2). A first cylinder body (34) located inside the lower connecting seat (2) is movably sleeved outside the second cylinder body (36). A connecting block (33) is movably connected to the bottom of the lower connecting seat (2). A spring combination screw (31) is threadedly connected to the bottom of the lower connecting seat (2). An inclined block (32) is movably sleeved outside the spring combination screw (31). An inclined surface (331) is formed on the connecting block (33). The inclined block (32) can squeeze the inclined surface (331) under the elastic force of the spring part on the spring combination screw (31) and make the connecting block (33) have an upward trend. A notch (341) is formed on the first cylinder body (34). One end of the connecting block (33) is fixedly clamped in the notch (341). The other end of the connecting block (33) is fixedly connected to the circular cylinder (21) through a bolt. A limiting block (37) is movably clamped on the second cylinder body (36). In the initial state, one end of the limiting block (37) abuts against the inner wall of the first annular groove (35) and the other end of the limiting block (37) can be inserted into the second annular groove (41). The first annular groove (35) is formed on the inner wall of the first cylinder body (34). Conical blocks (361) are annularly and arrayedly arranged on the inner wall of the second cylinder body (36); A second annular groove (41) is formed on the milling cutter body (4). Conical grooves (42) are annularly and arrayedly arranged on the second annular groove (41); When the milling cutter body (4) moves upward, it can drive the conical grooves (42) to engage with the conical blocks (361).

2. The milling equipment for the production and processing of crane parts according to claim 1, characterized in that: A chamfer (421) is arranged on the edge of the conical groove (42). When the milling cutter body (4) moves upward, it can squeeze the limiting block (37) to make it move in the horizontal direction.

3. The milling equipment for the production and processing of crane parts according to claim 1, characterized in that: An inclined surface (331) is formed on the bottom of the connecting block (33). An annular guard plate (22) located below the spring combination screw (31) is fixedly connected to the bottom of the lower connecting seat (2).

4. The milling equipment for the production and processing of crane parts according to claim 1, characterized in that: The second connecting claw (5) includes a connecting part at the top, a columnar part in the middle and a spline shaft part at the bottom. The top of the second connecting claw (5) can be engaged with the bottom of the first connecting claw (11).

5. The milling equipment for the production and processing of crane parts according to claim 4, characterized in that: The adjusting assembly (6) includes a first rod body (61) symmetrically and movably connected inside the lower connecting seat (2). At the opposite ends of the two first rod bodies (61), a second rod body (62) with a width smaller than that of the first rod body (61) is fixedly connected. The middle part of the second connecting claw (5) is movably connected with an elastic member (63). The two ends of the elastic member (63) are elastically connected to the two first rod bodies (61) respectively. Inside the lower connecting seat (2), a third rod body (64) is fixedly connected. On the third rod body (64), a first bayonet (65), a channel (66) and a second bayonet (67) are formed. The width of the channel (66) is smaller than the widths of the first bayonet (65), the second bayonet (67) and the first rod body (61). The second rod body (62) can move vertically in the channel (66). When one end of the first rod body (61) is inserted into the first bayonet (65), the first rod body (61) can drive the adjusting assembly (6) to separate from the first connecting claw (11) through the elastic member (63). When one end of the first rod body (61) is inserted into the second bayonet (67), the first rod body (61) can drive the adjusting assembly (6) to engage with the first connecting claw (11) through the elastic member (63).

6. The milling equipment for the production and processing of crane parts according to claim 5, characterized in that: The elastic member (63) includes a first spring rod (631) and a second spring rod (632) movably connected to the middle part of the second connecting claw (5). Both ends of the first spring rod (631) and the second spring rod (632) are elastically connected to the two first rod bodies (61) respectively. When the lower connecting seat (2) and the second connecting claw (5) rotate at a high speed, the first spring rod (631) and the second spring rod (632) can move away from each other.

7. The milling equipment for the production and processing of crane parts according to claim 6, characterized in that: On the second rod body (62), a vertical hole (621) and a horizontal hole (622) communicating with the vertical hole (621) are formed. At the top of the circular ring cylinder (21), a blocking rod (211) is fixedly connected. The top of the blocking rod (211) is spherical and its diameter is larger than the diameter of the rod part of the blocking rod (211). The blocking rod (211) can move vertically in the vertical hole (621), and in the initial state, the blocking rod (211) can move horizontally in the horizontal hole (622). When the circular ring cylinder (21) drives the blocking rod (211) to move downward, the blocking rod (211) can be separated from the vertical hole (621). At this time, the projection of the spherical part at the top of the blocking rod (211) coincides with the second rod body (62).

8. The milling equipment for the production and processing of crane parts according to claim 7, characterized in that: Outside the upper connecting seat (1), a rubber blocking skirt (12) is fixedly connected to block the connection part between the upper connecting seat (1) and the lower connecting seat (2).

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