Milling equipment for producing and processing crane parts

Abstract

The invention belongs to the technical field of milling cutter holders, and discloses milling equipment for producing and processing crane parts, the milling equipment comprises an upper connecting seat and a milling cutter body, the bottom of the upper connecting seat is in bearing connection with a lower connecting seat, the bottom of the upper connecting seat is also fixedly provided with a connecting claw I, and the milling equipment also comprises a clamping assembly arranged at the bottom of the lower connecting seat. According to the scheme, an operator presses an annular cylinder with one hand, a first cylinder body is driven to move downwards to the bottommost part through a connecting block, at the moment, an inclined surface can extrude an inclined block, and a spring on an annular protection plate is compressed to store force; when the cutter is replaced, the inclined block extrudes the inclined plane and enables the connecting block to drive the first cylinder and the annular cylinder to move upwards and reset, so that the first annular groove extrudes the limiting block and one end of the limiting block is clamped into the second annular groove, and the situation that when an operator replaces the cutter, the upper connecting base accidentally rotates to drive the lower connecting base to accidentally rotate is avoided.

Description

Technical Field

[0001] The invention belongs to the technical field of milling cutter seats, in particular to a milling device used for production and processing of crane parts. Background Art

[0002] The spindle of the vertical milling machine is placed vertically. This structure gives it advantages in processing vertical planes, step surfaces, etc. Its milling cutter can be fed directly vertically downward, which is very convenient for some situations where milling processing is required on the top of the part. For example, when milling the mounting plane at the top of the crane boom, the vertical milling machine can process more efficiently. Usually, the cutter head needs to be replaced during the part processing of the milling machine, and the milling cutter of the vertical milling machine is usually replaced manually by the operator. When the operator operates improperly, that is, when the power is not completely turned off, the cutter holder may rotate accidentally during the operator's replacement of the cutter head. At this time, if the cutter head is not completely fixed to the cutter holder, the accidental rotation of the cutter holder may cause the unfixed cutter head to fly away instantly and pose a huge 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 destroy the existing processing accuracy of the part, resulting in the scrapping of the part and increasing the production cost. Therefore, in order to solve the above problems, a milling device for the production and processing of crane parts is proposed. Summary of the invention

[0003] In order to solve the problems raised in the above background technology, the present invention provides a milling device for the production and processing of crane parts, which solves the problem that the cutter head of the existing milling device may be accidentally thrown away due to operator's error during replacement.

[0004] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a milling device for the production and processing of crane parts, comprising an upper connecting seat and a milling cutter body, wherein the bottom bearing of the upper connecting seat is connected to the lower connecting seat, and the bottom of the upper connecting seat is also fixedly installed with a connecting claw 1, and further comprising: a clamping assembly, which is arranged at the bottom of the lower connecting seat for installing the milling cutter body; a connecting claw 2, which is splined to the inside of the lower connecting seat and the connecting claw 2 can move upward and be connected to the connecting claw 1 by transmission; 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 2; a circular ring is provided on the outer movable sleeve of the lower connecting seat;

[0005] The cam is provided with a spring which is arranged on the inner wall of the cylinder and is fixed with the spring which is arranged on the inner wall of the cylinder.

[0006] The milling cutter body is provided with a second annular groove, and a second conical groove is provided in an annular array on the second annular groove;

[0007] The upward movement of the milling cutter body can drive the second conical groove to engage with the conical block.

[0008] Preferably, a chamfer is provided on the edge of the second conical groove, and when the milling cutter body moves upward, it can squeeze the limit block to enable it to move in the horizontal direction.

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

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

[0011] Preferably, the adjustment assembly comprises a rod body 1 symmetrically and movably connected to the inside of the lower connecting seat, a rod body 2 whose width is smaller than the rod body 1 is fixedly connected to the opposite ends of the two rod bodies 1, an elastic member is movably connected to the middle of the connecting claw 2, and the two ends of the elastic member are elastically connected to the two rod bodies 1 respectively, a rod body 3 is fixedly connected to the inside of the lower connecting seat, a bayonet 1, a channel and a bayonet 2 are provided on the rod body 3, wherein the width of the channel is smaller than the width of the bayonet 1, the bayonet 2 and the rod body 1, and the rod body 2 can move vertically in the channel;

[0012] One end of the rod body 1 is inserted into the bayonet 1, so that the rod body 1 drives the adjustment component to separate from the connecting claw 1 through the elastic member;

[0013] One end of the rod body 1 is inserted into the second bayonet, so that the rod body 1 drives the adjustment component to engage with the connecting claw 1 through the elastic member.

[0014] Preferably, the elastic member comprises a spring rod 1 and a spring rod 2 movably connected to the middle part of the second connecting claw;

[0015] Both ends of the spring rod 1 and the spring rod 2 are elastically connected to the two rod bodies 1 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, the rod body 2 is provided with a vertical hole and a horizontal hole connected to the vertical hole;

[0018] A blocking rod is fixedly connected to the top of the annular cylinder, and the top of the blocking rod is spherical and has a diameter larger than the diameter of the upper rod body of the blocking rod;

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

[0020] The annular tube drives the blocking rod downward to make the blocking rod escape from the vertical hole, and at this time, the projection of the spherical part at the top of the blocking rod overlaps with the second rod body.

[0021] Preferably, a rubber skirt for shielding 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 present invention has the following beneficial effects:

[0023] The above scheme enables the operator to press the annular cylinder with one hand to drive the cylinder body to move downward to the bottom through the connecting block. At this time, the inclined surface will squeeze the inclined block and make the spring on the annular guard plate be compressed and force accumulated, and the annular groove 1 and the limit block are at the same height. The operator clamps the milling cutter body into the cylinder body 2 with the other hand. 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 limit block into the annular groove 1. When the annular groove 2 and the limit block are at the same height, the operator releases the annular cylinder. At this time, the spring on the annular guard plate pushes the inclined block to move, and the inclined block squeezes the inclined surface and makes the connecting block drive the cylinder body 1 and the annular cylinder to reset upward, so that the annular groove 1 squeezes the limit block and makes one end of the limit block clamped in the annular groove 2, thereby avoiding the situation that the accidental rotation of the upper connecting seat will drive the accidental rotation of the lower connecting seat when the operator changes the tool;

[0024] The above scheme is that the operator presses the two rod bodies 2 with both hands to push the two rod bodies 1 to move toward each other, so that the rod body 1 is separated from the rod body 2, and then the rod body 2 is moved upward and the connecting claw 2 is driven by the rod body 1 and the elastic member to move upward and engage with the connecting claw 1. When the rod body 2 moves up along the channel to the same height as the bayonet 2, the pressure on the rod body 2 is released. At this time, the elastic force of the elastic member causes the rod body 1 to be respectively engaged in the bayonet 2 again. At this time, the upper connecting seat, the elastic member and the connecting claw 2 are fixed, so that the upper connecting seat can drive the lower connecting seat to rotate through the connecting claw 1 when rotating. In addition, since the operator needs to press the two rod bodies 2 with two hands, it is avoided that the operator can operate with one hand, which may cause danger.

[0025] The above scheme drives the baffle rod downward when the annular cylinder moves downward, so that the spherical part of the baffle rod disengages from the vertical hole. At this time, when the operator presses the rod body 2, it will be blocked by the spherical part of the baffle rod and the rod body 1 cannot be disengaged from the clamping hole 1, thereby avoiding the operator from encountering unexpected situations when installing the milling cutter body through the clamping assembly, which may cause the connecting claw 2 to connect with the connecting claw 1. BRIEF DESCRIPTION OF THE DRAWINGS

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

[0027] Figure 2 It is a front cross-sectional structural schematic diagram of the present invention;

[0028] Figure 3 for Figure 2 The enlarged view of point A in the middle;

[0029] Figure 4 for Figure 3 The enlarged view of point B in the middle;

[0030] Figure 5 for Figure 2 Enlarged view of point C in the middle;

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

[0032] Figure 7 It is a partial cross-sectional structural schematic diagram of the cylinder body 2 of the present invention;

[0033] Figure 8 It is a schematic diagram of the structure of the regulating component of the present invention.

[0034] In the figure: 1, upper connecting seat; 11, connecting claw 1; 12, rubber skirt; 2, lower connecting seat; 21, annular cylinder; 211, stop rod; 22, annular guard plate; 3, clamping assembly; 31, spring combination screw; 32, oblique block; 33, connecting block; 331, inclined surface; 34, cylinder body 1; 341, notch; 35, annular groove 1; 36, cylinder body 2; 361, tapered block; 37, limit block; 4, milling cutter body; 41, annular groove 2; 42, tapered groove 2; 421, chamfer; 5, connecting claw 2; 6, adjustment assembly; 61, rod body 1; 62, rod body 2; 621, vertical hole; 622, horizontal hole; 63, elastic member; 631, spring rod 1; 632, spring rod 2; 64, rod body 3; 65, bayonet 1; 66, channel; 67, bayonet 2. DETAILED DESCRIPTION

[0035] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0036] like Figures 1 to 8 As 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, wherein the lower connecting seat 2 is connected to the upper connecting seat 1 by a bearing at the bottom, and a connecting claw 11 is fixedly installed at the bottom of the upper connecting seat 1, and further comprising: a clamping assembly 3, which is arranged at the bottom of the lower connecting seat 2 for installing the milling cutter body 4; a connecting claw 2 5, which is splined to the inside of the lower connecting seat 2 and the connecting claw 2 5 can move upward and be connected to the connecting claw 11 by transmission; 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 connecting claw 2 5; a circular ring 21 is provided on the outer movable sleeve of the lower connecting seat 2;

[0037] The clamping assembly 3 includes a cylinder 36 fixedly mounted on the bottom of the lower connecting seat 2, a cylinder 34 located inside the lower connecting seat 2 is movably sleeved outside the cylinder 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, and an inclined surface 331 is provided on the connecting block 33. The inclined block 32 is subjected to the elastic force of the spring part of the spring combination screw 31 to squeeze the inclined surface 331 and make the connecting block 33 have There is an upward trend, a notch 341 is provided on the cylinder 1 34, one end of the connecting block 33 is fixedly connected to the notch 341, and the other end of the connecting block 33 is fixedly connected to the annular cylinder 21 by bolts, and a limit block 37 is movably connected to the cylinder 2 36. In the initial state, one end of the limit block 37 abuts against the inner wall of the annular groove 1 35, and the other end of the limit block 37 can be extended and inserted into the annular groove 2 41. An annular groove 1 35 is provided on the inner wall of the cylinder 1 34, and a conical block 361 is provided in an annular array on the inner wall of the cylinder 2 36;

[0038] The milling cutter body 4 is provided with an annular groove 41, and an annular array of conical grooves 42 are provided on the annular groove 41; the upward movement of the milling cutter body 4 can drive the conical groove 42 to engage with the conical block 361;

[0039] The edge of the second conical groove 42 is provided with a chamfer 421, and when the milling cutter body 4 moves upward, it can squeeze the limit block 37 to make it move in the horizontal direction;

[0040] The bottom of the connecting block 33 is provided with an inclined surface 331, and the bottom of the lower connecting seat 2 is fixedly connected with an annular guard plate 22 located below the spring assembly screw 31;

[0041] The connecting claw 2 5 includes a connecting portion at the top, a columnar portion in the middle, and a spline shaft portion at the bottom. The top of the connecting claw 2 5 can be engaged with the bottom of the connecting claw 1 11.

[0042] With the above solution, 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 to store force, and the annular groove 1 35 and the limit block 37 are at the same height. The operator uses the other hand to insert 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 ring When the annular groove 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. 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 41, thereby avoiding the situation that the accidental rotation of the upper connecting seat 1 will drive the accidental rotation of the lower connecting seat 2 when the operator replaces the tool.

[0043] like Figure 1 , Figure 2 , Figure 5 , Figure 6 and Figure 8 As shown, the adjustment assembly 6 includes a rod body 1 61 symmetrically and movably connected to the inside of the lower connecting seat 2, a rod body 2 62 with a width smaller than the rod body 1 61 is fixedly connected to the opposite ends of the two rod bodies 1 61, an elastic member 63 is movably connected to the middle of the connecting claw 2 5, and the two ends of the elastic member 63 are elastically connected to the two rod bodies 1 61 respectively, and a rod body 3 64 is fixedly connected to the inside of the lower connecting seat 2, and a bayonet 1 65, a channel 66 and a bayonet 2 67 are provided on the rod body 3 64, wherein the width of the channel 66 is smaller than the width of the bayonet 1 65, the bayonet 2 67 and the rod body 1 61, and the rod body 2 62 can move vertically in the channel 66;

[0044] One end of the rod body 61 is inserted into the bayonet 65, so that the rod body 61 drives the adjustment component 6 to separate from the connecting claw 11 through the elastic member 63;

[0045] One end of the rod body 1 61 is inserted into the second bayonet 67 so that the rod body 1 61 drives the adjustment component 6 to engage with the connecting claw 1 11 through the elastic member 63;

[0046] With the above scheme, the operator presses the two second rods 62 with both hands to push the two first rods 61 to move toward each other, so that the first rod 61 is separated from the second rod 62, and then moves the second rod 62 upward and drives the connecting claw 2 5 to move upward and engage with the connecting claw 11 through the first rod 61 and the elastic member 63. When the second rod 62 moves up along the channel 66 to the same height as the second bayonet 67, the pressing of the second rod 62 is released. At this time, under the elastic force of the elastic member 63, the first rod 61 is respectively engaged in the second bayonet 67. At this time, the upper connecting seat 1, the elastic member 63 and the connecting claw 2 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. In addition, since the operator needs to press the two second rods 62 with two hands, it is avoided that the operator can operate with one hand, which may cause danger.

[0047] When the lower connecting seat 2 rotates at high speed, the centrifugal force will also cause the top of the inclined block 32 to press the inclined surface 331, thereby ensuring that the milling cutter body 4 can be stably locked in the second cylinder 36 when the device is running.

[0048] like Figure 5 , Figure 6 and 8As shown, the elastic member 63 includes a spring rod 1 631 and a spring rod 2 632 movably connected to the middle of the connecting claw 2 5; both ends of the spring rod 1 631 and the spring rod 2 632 are elastically connected to the two rod bodies 1 61 respectively; the center of gravity of the spring rod 1 631 is close to one of the rod bodies 1 61, and the center of gravity of the spring rod 2 632 is close to the other rod body 2 62; when the lower connecting seat 2 and the connecting claw 2 5 rotate at a high speed, the spring rod 1 631 and the spring rod 2 632 can move away from each other;

[0049] By adopting the above solution, when the device as a whole rotates, the spring rod 1 631 and the spring rod 2 632 can move away from each other, thereby avoiding the situation where the spring rod 1 631 or the spring rod 2 632 is offset when one spring rod 1 631 or the spring rod 2 632 is set, causing the entire device to be unstable during rotation.

[0050] like Figure 2 , Figure 5 , Figure 6 and Figure 8 As shown, the rod body 62 is provided with a vertical hole 621 and a horizontal hole 622 connected to the vertical hole 621;

[0051] A blocking rod 211 is fixedly connected to the top of the annular cylinder 21. The top of the blocking rod 211 is spherical and has a diameter greater than the diameter of the upper rod body of the blocking rod 211.

[0052] 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;

[0053] The annular tube 21 drives the blocking rod 211 downward to make the blocking rod 211 disengage from the vertical hole 621. At this time, the projection of the spherical part at the top of the blocking rod 211 overlaps with the rod body 62.

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

[0055] By adopting the above scheme, the annular cylinder 21 drives the baffle rod 211 downward to enable the spherical part of the baffle rod 211 to disengage from the vertical hole 621. At this time, when the operator presses the rod body 2 62, the spherical part of the baffle rod 211 will block the rod body 1 61 and cannot disengage 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.

[0056] The working principle and use 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, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that 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, comprising an upper connecting seat (1) and a milling cutter body (4), wherein the bottom bearing of the upper connecting seat (1) is connected to a lower connecting seat (2), and a connecting claw (11) is fixedly installed at the bottom of the upper connecting seat (1), characterized in that: Also includes: A clamping assembly (3) disposed at the bottom of the lower connecting seat (2) for mounting the milling cutter body (4); The second connecting claw (5) is spline-connected to the interior of the lower connecting seat (2) and the second connecting claw (5) can move upward to be transmission-connected with the first connecting claw (11); An adjustment component (6) is installed in the middle of the lower connecting seat (2) and is used to control the upward movement and fixation of the second connecting claw (5); The lower connecting seat (2) is provided with an annular cylinder (21) on the outer movable sleeve; The clamping assembly (3) comprises a second cylinder (36) fixedly mounted on the bottom of the lower connecting seat (2); the second cylinder (36) is movably sleeved with a first cylinder (34) located inside the lower connecting seat (2); the bottom of the lower connecting seat (2) is movably connected with a connecting block (33); the bottom of the lower connecting seat (2) is threadedly connected with a spring combination screw (31); the spring combination screw (31) is movably sleeved with an inclined block (32); the connecting block (33) is provided with an inclined surface (331); the inclined block (32) is subjected to 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) ) has an upward trend, a notch (341) is provided on the cylinder body (34), one end of the connecting block (33) is fixedly clamped on the notch (341), the other end of the connecting block (33) is fixedly connected to the annular cylinder (21) by bolts, a limit block (37) is movably clamped on the cylinder body (36), one end of the limit block (37) abuts against the inner wall of the annular groove (35) in the initial state, and the other end of the limit block (37) can be extended and clamped into the annular groove (41), an annular groove (35) is provided on the inner wall of the cylinder body (34), and a conical block (361) is provided in an annular array on the inner wall of the cylinder body (36); The milling cutter body (4) is provided with a second annular groove (41), and the second annular groove (41) is provided with a second conical groove (42) in an annular array; The upward movement of the milling cutter body (4) can drive the second conical groove (42) to engage with the conical block (361).

2. The milling equipment for crane parts production and processing according to claim 1 is characterized in that: The edge of the second conical groove (42) is provided with a chamfer (421), and when the milling cutter body (4) moves upward, it can squeeze the limit block (37) to enable it to move in the horizontal direction.

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

4. The milling equipment for crane parts production and processing according to claim 1 is characterized in that: The second connecting claw (5) comprises a connecting portion at the top, a columnar portion in the middle and a spline shaft portion 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 crane parts production and processing according to claim 4 is characterized in that: The adjustment assembly (6) comprises a rod body (61) symmetrically and movably connected to the interior of the lower connecting seat (2); a rod body (62) having a width smaller than that of the rod body (61) is fixedly connected to the opposite ends of the two rod bodies (61); an elastic member (63) is movably connected to the middle of the connecting claw (5); the two ends of the elastic member (63) are elastically connected to the two rod bodies (61) respectively; a rod body (64) is fixedly connected to the interior of the lower connecting seat (2); a bayonet (65), a channel (66) and a bayonet (67) are provided on the rod body (64); the width of the channel (66) is smaller than the widths of the bayonet (65), the bayonet (67) and the rod body (61); and the rod body (62) can move vertically in the channel (66); One end of the rod body 1 (61) is inserted into the bayonet 1 (65), so that the rod body 1 (61) can drive the adjustment component (6) to separate from the connecting claw 1 (11) through the elastic member (63); One end of the rod body 1 (61) is inserted into the second bayonet (67), so that the rod body 1 (61) can drive the adjustment component (6) to engage with the connecting claw 1 (11) through the elastic member (63).

6. The milling equipment for crane parts production and processing according to claim 5 is characterized in that: The elastic member (63) comprises a spring rod 1 (631) and a spring rod 2 (632) movably connected to the middle of the second connecting claw (5); Both ends of the spring rod 1 (631) and the spring rod 2 (632) are elastically connected to the two rod bodies 1 (61) respectively; 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 in opposite directions.

7. The milling equipment for crane parts production and processing according to claim 6 is characterized in that: The second rod body (62) is provided with a vertical hole (621) and a horizontal hole (622) communicating with the vertical hole (621); A blocking rod (211) is fixedly connected to the top end of the annular cylinder (21); the top end of the blocking rod (211) is spherical and has a diameter greater than the diameter of the upper rod body portion of the blocking rod (211); The blocking rod (211) can move vertically in the vertical hole (621), and in an initial state, the blocking rod (211) can move horizontally in the horizontal hole (622); The annular cylinder (21) drives the blocking rod (211) downward to enable the blocking rod (211) to escape from the vertical hole (621). At this time, the projection of the spherical part at the top of the blocking rod (211) overlaps with the second rod body (62).

8. The milling equipment for crane parts production and processing according to claim 7 is characterized in that: The upper connecting seat (1) is externally fixed with a rubber skirt (12) for shielding the connection between the upper connecting seat (1) and the lower connecting seat (2).

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