A turning device based on metal joint machining

Abstract

The application discloses a turning device based on metal joint machining, which comprises a lathe main body, a chuck and a cutter, and further comprises a supporting rod, a rotating rod is arranged on the supporting rod in a rotating mode, and an assembling ring is fixedly arranged on the rotating rod; a fixed rod is fixedly arranged on the lathe main body, a sliding groove is arranged on the fixed rod, a sliding block is fixedly arranged on the supporting rod, and the sliding block is arranged in the sliding groove in a sliding mode; the workpiece is inserted into the assembling ring by arranging the assembling ring on the rotating rod, the workpiece is pushed to slide to the middle position of the assembling ring by sliding of the first abutting pin and the second abutting pin, then the rotating rod rotates with the assembling ring, and a part of the workpiece is slid to the clamping position of the chuck, so that the clamping position of the chuck to the workpiece is ensured, turning quality problems caused by deviation of the clamping position are avoided, and the danger of manually installing the workpiece on the chuck is avoided.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of turning processing, in particular to a turning device based on metal joint processing. BACKGROUND

[0002] The metal joint is a metal connecting piece for connecting pipes, cables, mechanical parts, etc., which plays a key role in connection, fixation, protection, etc. in the cable system, and can ensure stable and reliable transmission of electric energy or signals.

[0003] In the production process of the metal joint, the inner hole needs to be turned. The metal joint turning inner hole is to cut the inner surface of the metal joint by the lathe. The turning process has rough machining and finishing. Rough machining is used to quickly remove most of the machining allowance to lay the foundation for subsequent finishing, and high precision and surface quality are not pursued. Finishing is used to ensure the size accuracy, shape tolerance and surface roughness of the inner hole to meet the assembly requirements of the metal joint.

[0004] In the prior art, the workpiece needs to be fixed on the chuck of the lathe during the machining process, so that the chuck drives the workpiece to rotate and is turned by the tool. Since the workpiece is small, it is troublesome to fix the workpiece, and there is a certain danger when the chuck clamps the workpiece. At the same time, it is also difficult to control the position of the workpiece clamped by the chuck. SUMMARY

[0005] The purpose of the present application is to provide a turning device based on metal joint processing to solve the above problems in the prior art.

[0006] In order to achieve the above purpose, the present application provides the following technical scheme:

[0007] A turning device based on metal joint processing, comprising a lathe main body, a chuck and a tool, further comprising a support rod, a rotating rod is rotatably arranged on the support rod, and an assembly ring is fixedly arranged on the rotating rod;

[0008] A fixed rod is fixedly arranged on the lathe main body, a sliding groove is arranged on the fixed rod, a sliding block is fixedly arranged on the support rod, and the sliding block is slidably arranged in the sliding groove;

[0009] Further comprising a lifting pipe, two reciprocating rods are slidably arranged on the lifting pipe, a first abutting pin and a second abutting pin are respectively slidably arranged on the two reciprocating rods, and the first abutting pin and the second abutting pin cooperate with each other to correct the position of the workpiece;

[0010] Further comprising a loosening piece, when the rotating rod and the assembly ring rotate, the lifting pipe with the first abutting pin and the second abutting pin moves downward, so that the first abutting pin and the second abutting pin are separated from the workpiece.

[0011] Preferably, a reel is arranged on the lifting pipe in rotation, and a torsional spring is arranged between the reel and the lifting pipe;

[0012] A connecting rope is arranged between the reel and the two reciprocating rods, and the two ends of the connecting rope are fixedly connected with the reel and the reciprocating rods respectively and wound on the reel.

[0013] Preferably, a second spring is fixedly arranged between the first abutting pin and the corresponding reciprocating rod and between the second abutting pin and the corresponding reciprocating rod.

[0014] A slope is arranged on the first abutting pin.

[0015] Preferably, a plurality of sets of buffer members are arranged on the assembly ring in a circumferential array.

[0016] The buffer member comprises a buffer block slidingly arranged on the assembly ring, a steel ball rolling arranged on the buffer block, and a first spring arranged between the buffer block and the assembly ring, and the two ends of the first spring are fixedly connected with the buffer block and the assembly ring respectively.

[0017] Preferably, the straight rod is fixedly arranged on the lifting pipe, a helical groove is arranged on the rotating rod, a through hole is arranged on the support rod, the straight rod is slidingly arranged in the through hole, and one end of the straight rod is slidingly arranged in the helical groove.

[0018] Preferably, a limiting block is fixedly arranged on the lifting pipe, a limiting groove is arranged on the support rod, and the limiting block is slidingly arranged in the limiting groove.

[0019] Preferably, a guide pin is fixedly arranged on the rotating rod, and the fixed rod is provided with a guide groove, and the guide pin is matched with the guide groove.

[0020] Preferably, the guide groove comprises a guide portion and a rotating portion, when the guide pin is located in the rotating portion, the rotating rod is in a rotating state, and when the guide pin enters the guide portion, the rotating rod is in a sliding state.

[0021] Preferably, a rotating arm is fixedly arranged on the rotating rod, a notch is arranged on the rotating arm, a hydraulic rod is fixedly arranged on the lathe body, a cross rod is fixedly arranged on the extension end of the hydraulic rod, a protruding block is fixedly arranged on the cross rod, and the protruding block is slidingly arranged in the notch.

[0022] Preferably, an arc-shaped surface is arranged on the first abutting pin and the second abutting pin.

[0023] In the above technical solution, the turning device based on metal joint machining provided by the present application has the following beneficial effects:

[0024] By setting the assembly ring on the rotating rod, inserting the workpiece into the assembly ring, and then sliding the first abutting pin and the second abutting pin to push the workpiece, the workpiece is slid to the middle position of the assembly ring, and then the rotating rod rotates with the assembly ring, and a part of the workpiece is sent to the clamping position of the chuck, so that the clamping position of the chuck on the workpiece is ensured, the deviation of the clamping position is avoided, and the turning quality problem is avoided. At the same time, the danger of manually installing the workpiece to the chuck is also avoided.

[0025] It should be understood that the foregoing general description and the following detailed description are only exemplary and explanatory, and are not intended to limit the disclosure.

[0026] This application file provides an overview of various implementations or examples of the technology described in this disclosure, and is not a comprehensive disclosure of the full scope or all features of the disclosed technology. BRIEF DESCRIPTION OF DRAWINGS

[0027] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings needed in the embodiments. Obviously, the drawings in the following description are only some embodiments described in the present application, and other drawings can also be obtained by those skilled in the art according to these drawings.

[0028] Figure 1 The overall structure schematic diagram provided by the embodiment of the present application;

[0029] Figure 2 The enlarged view of A in the embodiment of the present application is provided Figure 1

[0030] Figure 3 The internal structure schematic diagram of the lifting pipe provided by the embodiment of the present application;

[0031] Figure 4 The structure schematic diagram of the cross rod and the rotating arm provided by the embodiment of the present application;

[0032] Figure 5 The structure schematic diagram of the sliding block provided by the embodiment of the present application;

[0033] Figure 6 The structure schematic diagram of the bottom of the fixed rod provided by the embodiment of the present application;

[0034] Figure 7 The internal structure schematic diagram of the fixed rod provided by the embodiment of the present application;

[0035] Figure 8 The schematic diagram of the rotating and sliding principle of the guide pin provided by the embodiment of the present application.

[0036] Explanation of reference signs:

[0037] ​1, lathe main body; 11, chuck; 12, tool; 2, support rod; 21, through hole; 22, limiting groove; 23, sliding block; 3, rotating rod; 31, assembly ring; 32, buffer block; 33, steel ball; 34, first spring; 35, helical groove; 36, guide pin; 37, rotating arm; 38, notch; 4, lifting pipe; 41, reel; 42, connecting rope; 43, torsional spring; 44, limiting block; 45, straight rod; 5, reciprocating rod; 51, first abutting pin; 52, second spring; 53, second abutting pin; 54, arc surface; 55, inclined surface; 6, fixed rod; 61, rotating part; 62, guide part; 63, sliding groove; 7, hydraulic rod; 71, telescopic end; 72, cross rod; 73, protruding block. DETAILED DESCRIPTION

[0038] In order to make the objects, technical solutions and advantages of the embodiments of the present disclosure clearer, the technical solutions of the embodiments of the present disclosure will be described clearly and completely below with reference to the drawings of the embodiments of the present disclosure. Obviously, the described embodiments are some but not all of the embodiments of the present disclosure. Based on the described embodiments of the present disclosure, all other embodiments obtained by those of ordinary skill in the art without creative effort belong to the scope of protection of the present disclosure.

[0039] Please refer to Figures 1-8The utility model provides a kind of based on metal joint processing's turning device, including lathe main body 1, chuck 11 and tool 12, further including support rod 2, support rod 2 is rotationally provided with rotating rod 3, rotating rod 3 is fixedly provided with assembly ring 31;Fixedly set on lathe main body 1 is fixed rod 6, and fixed rod 6 is provided with sliding groove 63, and support rod 2 is fixedly provided with sliding block 23, and sliding block 23 is slidably arranged in sliding groove 63;Further including lifting pipe 4, two reciprocating rods 5 are slidably arranged on lifting pipe 4, first abutment pin 51 and second abutment pin 53 are slidably arranged on two reciprocating rods 5 respectively, and first abutment pin 51 and second abutment pin 53 are matched with each other to correct workpiece position;Further including relaxation piece, when rotating rod 3 and assembly ring 31 rotate, first abutment pin 51 and second abutment pin 53 are lowered with lifting pipe 4, so that first abutment pin 51 and second abutment pin 53 are separated from workpiece, by setting assembly ring 31 on rotating rod 3, when installing workpiece, workpiece is inserted into assembly ring 31, to avoid manual installation of workpiece, to avoid the phenomenon that worker is easily injured when chuck 11 clamps workpiece;By setting reciprocating rod 5 on lifting pipe 4, and setting first abutment pin 51 and second abutment pin 53 on reciprocating rod 5, after workpiece is inserted into assembly ring 31, workpiece is pushed to the middle position of assembly ring 31 by the sliding of first abutment pin 51 and second abutment pin 53, to complete the correction of workpiece position, when workpiece is sent to the clamping position of chuck 11 by assembly ring 31, the accuracy of chuck 11 clamping workpiece can be guaranteed, to avoid deviation of clamping position, leading to turning quality problem;By the sliding connection mode of sliding block 23 and sliding groove 63, support rod 2 is limited, so that assembly ring 31 and rotating rod 3 keep stable when rotating, and after rotating rod 3 rotates, support rod 2 can slide with rotating rod 3, to send workpiece to the clamping position of chuck 11, set relaxation piece, after first abutment pin 51 and second abutment pin 53 correct the position of workpiece, rotating rod 3 and assembly ring 31 rotate, and first abutment pin 51 and second abutment pin 53 are separated from workpiece quickly by the lowering of lifting pipe 4 with first abutment pin 51 and second abutment pin 53, to avoid the phenomenon that workpiece deviates again after correction due to excessive abutment force between first abutment pin 51 and second abutment pin 53 when rotating with assembly ring 31.

[0040] Specifically, the winding shaft 41 is rotatably arranged on the lifting pipe 4, and a torsion spring 43 is arranged between the winding shaft 41 and the lifting pipe 4; the winding shaft 41 is provided with a connecting rope 42 between the two reciprocating rods 5, the two ends of the connecting rope 42 are fixedly connected with the winding shaft 41 and the reciprocating rod 5 respectively, and are wound on the winding shaft 41; when the workpiece is inserted, the first abutting pin 51 moves downward, the workpiece is inserted into the assembly ring 31, and the workpiece is pushed to make the second abutting pin 53 slide, the winding shaft 41 rotates against the force of the torsion spring 43, and the connecting rope 42 is loosened; when the workpiece is located between the first abutting pin 51 and the second abutting pin 53, the workpiece is loosened, the first abutting pin 51 and the second abutting pin 53 abut on both sides of the workpiece respectively, the winding shaft 41 rotates under the reset action of the torsion spring 43, the connecting rope 42 is pulled, the first abutting pin 51 and the second abutting pin 53 slide, and the workpiece is corrected to the middle position of the assembly ring 31.

[0041] In further provided embodiments of the application, the first abutting pin 51 and the second abutting pin 53 are fixedly provided with a second spring 52 between the corresponding reciprocating rod 5; the first abutting pin 51 is provided with an inclined surface 55, when the workpiece is installed, the first abutting pin 51 moves downward and compresses the second spring 52 through the abutment of the workpiece and the inclined surface 55, so as to facilitate the insertion of the workpiece into the assembly ring 31; when the workpiece is inserted to be separated from the first abutting pin 51, the workpiece is loosened, the first abutting pin 51 rises and resets under the action of the second spring 52, abuts on one side of the workpiece, the other side of the workpiece abuts on the second abutting pin 53, and the winding shaft 41 winds the connecting rope 42 under the action of the torsion spring 43, so as to correct the position of the workpiece.

[0042] Further, the assembly ring 31 is provided with a plurality of buffer pieces, and the plurality of buffer pieces are arranged in a circumferential array; the buffer piece comprises a buffer block 32 slidingly arranged on the assembly ring 31, a steel ball 33 rolling on the buffer block 32, and a first spring 34 arranged between the buffer block 32 and the assembly ring 31, the two ends of the first spring 34 are fixedly connected with the buffer block 32 and the assembly ring 31 respectively; by arranging the buffer block 32, the steel ball 33 supports the workpiece under the action of the first spring 34, reduces the friction of the workpiece in the correction process, and at the same time, the vibration of the workpiece in the rotation process can be buffered to a certain extent through the cooperation of the first spring 34, the buffer block 32 and the steel ball 33.

[0043] Further, the relaxing piece comprises a straight rod 45 fixed on the lifting pipe 4, the rotating rod 3 is provided with a spiral groove 35, the supporting rod 2 is provided with a through hole 21, the straight rod 45 is slidingly arranged in the through hole 21, and one end of the straight rod 45 is slidingly arranged in the spiral groove 35; after the workpiece is inserted into the assembling ring 31 and is corrected, the rotating rod 3 is rotated with the assembling ring 31, so that the workpiece faces the chuck 11; when the rotating rod 3 is rotated, the spiral groove 35 cooperates with the straight rod 45, so that the lifting pipe 4 is lowered, and the first abutting pin 51 and the second abutting pin 53 are separated from the workpiece, thereby avoiding that the workpiece is pressed too hard in the rotating process, and the corrected workpiece is deviated.

[0044] In the further provided embodiment of the present application, the lifting pipe 4 is fixedly provided with a limiting block 44, the supporting rod 2 is provided with a limiting groove 22, and the limiting block 44 is slidingly arranged in the limiting groove 22; the limiting block 44 and the limiting groove 22 are slidingly connected through the straight rod 45 and the through hole 21, so that the lifting pipe 4 can stably slide during the rotation of the rotating rod 3.

[0045] In the provided embodiment of the present application, the rotating rod 3 is fixedly provided with a guide pin 36, the fixed rod 6 is provided with a guide groove, the guide pin 36 is matched with the guide groove, the guide groove comprises a guide portion 62 and a rotating portion 61, when the guide pin 36 is located in the rotating portion 61, the rotating rod 3 is in a rotating state, when the guide pin 36 enters the guide portion 62, the rotating rod 3 is in a sliding state, when the rotating rod 3 is in the rotating portion 61, the rotating rod 3 cannot slide, after the workpiece is inserted into the assembling ring 31 and is corrected, the rotating rod 3 is rotated, so that the lifting pipe 4 is lowered, and the assembling ring 31 is rotated, so that the workpiece faces the chuck 11; after the rotation of the rotating rod 3 is completed, the guide pin 36 is rotated to face the guide portion 62, at this time, the guide pin 36 can slide into the guide portion 62, in this process, the supporting rod 2, the rotating rod 3, the assembling ring 31 and the lifting pipe 4 slide together, until the workpiece is sent to the clamping position of the chuck 11, and after the guide pin 36 enters the guide portion 62, the rotation of the rotating rod 3 is limited, so that the stability of the rotating rod 3, the assembling ring 31 and the workpiece is ensured.

[0046] Specifically, the rotating arm 37 is fixedly arranged on the rotating rod 3, the notch 38 is arranged on the rotating arm 37, the hydraulic rod 7 is fixedly arranged on the lathe body 1, the cross rod 72 is fixedly arranged on the telescopic end 71 of the hydraulic rod 7, the protruding block 73 is fixedly arranged on the cross rod 72, the protruding block 73 is slidingly arranged in the notch 38, the hydraulic rod 7 is started, the telescopic end 71 is retracted, in the retraction process, because the guide pin 36 on the rotating rod 3 is located in the rotating part 61, the rotating rod 3 is first rotated, in the rotating process, the protruding block 73 slides in the notch 38, the rotating arm 37 rotates with the rotating rod 3, after the rotation is completed, the guide pin 36 is opposite to the guide part 62, at this time, the protruding block 73 is located at one end of the notch 38, the telescopic end 71 continues to retract, the guide pin 36 cannot rotate, under the pulling action of the telescopic end 71, the guide pin 36 enters the guide part 62 and slides with the telescopic end 71, so that the workpiece on the assembly ring 31 is sent to the clamping position of the chuck 11, in the resetting process, the telescopic end 71 is elongated, the rotating rod 3 is first reset by sliding, after the guide pin 36 enters the rotating part 61 and is separated from the guide part 62, the sliding of the rotating rod 3 is limited, at this time, the telescopic end 71 continues to be elongated, so that the rotating rod 3 is reset by rotating.

[0047] In the further provided scheme of the present application, the arc surface 54 is arranged on the first abutting pin 51 and the second abutting pin 53, when the assembly ring 31 rotates with the workpiece, the lifting pipe 4 lowers with the first abutting pin 51 and the second abutting pin 53, when the first abutting pin 51 and the second abutting pin 53 are not separated from the workpiece, the arc surface 54 reduces the extrusion force between the workpiece and the first abutting pin 51 and the second abutting pin 53, and slightly pulls the connecting rope 42 to rotate the reel 41, improving the stability of the workpiece.

[0048] After the lifting pipe 4 lowers and the first abutting pin 51 and the second abutting pin 53 are separated from the workpiece, the reel 41 retracts the reciprocating rod 5 into the lifting pipe 4 under the action of the torsional spring 43, after the turning is completed, the rotating rod 3 and the assembly ring 31 reset with the workpiece, after the sliding reset is completed, the rotating rod 3 and the assembly ring 31 reset by rotating, in the rotating process of the rotating rod 3, the lifting pipe 4, the bottom of the first abutting pin 51 and the second abutting pin 53 abuts against the workpiece, at this time, the second spring 52 on the first abutting pin 51 and the second abutting pin 53 is compressed, after the rotating reset is completed, the workpiece can be taken down, the first abutting pin 51 does not hinder the workpiece, improving the operation portability, wherein the elastic force of the second spring 52 is small, and is only used for resetting the first abutting pin 51 and the second abutting pin 53.

[0049] In the present application, the initial state of the assembly ring 31 is opposite to the direction of the baffle door of the lathe body 1, which facilitates the worker to insert the workpiece into the assembly ring 31. After the insertion and correction of the workpiece are completed, the rotating rod 3 is rotated, and the workpiece is opposite to the chuck 11. The reset is also the same, and the workpiece is opposite to the direction of the baffle door of the lathe body 1, which facilitates the worker to take down the turned workpiece.

[0050] In the present application, the chuck 11, the tool 12, and the hydraulic rod 7 and the telescopic end 71 are all prior art, and will not be described in detail.

[0051] Working principle: when turning the workpiece, the second spring 52 is compressed by the abutment of the workpiece and the inclined surface 55, and the workpiece is pushed into the assembly ring 31, so that the other end of the workpiece abuts against the arc surface 54 on the second abutment pin 53, and the second abutment pin 53 is pushed to slide, so that the connecting rope 42 on one side of the first abutment pin 51 is loosened during the rotation of the reel 41, and after the workpiece is pushed away from the top of the first abutment pin 51, the first abutment pin 51 is rebounded under the action of the second spring 52, so that the arc surface 54 on the first abutment pin 51 is in contact with the workpiece. At this time, the workpiece is loosened, and the reel 41 is reversely rotated under the action of the torsional spring 43, while the connecting ropes 42 on both sides are wound up, so that the two reciprocating rods 5 slide, and the workpiece is located in the middle of the assembly ring 31 through the sliding of the first abutment pin 51 and the second abutment pin 53. Subsequently, the hydraulic rod 7 is started, and the sliding of the horizontal rod 72 and the protrusion 73 is carried out through the telescopic end 71, and in the sliding process, the rotating arm 37 is rotated with the rotating rod 3 and the guide pin 36 through the cooperation of the protrusion 73 and the notch 38. When the rotating rod 3 rotates, the assembly ring 31 and the workpiece rotate together, so that the workpiece is aligned with the chuck 11. At the same time, the lifting pipe 4 slides down with the first abutment pin 51 and the second abutment pin 53 through the cooperation of the screw groove 35 and the straight rod 45, so that the workpiece is separated from the chuck 11. After the rotating rod 3 completes the rotation, the workpiece is aligned with the chuck 11, the lifting pipe 4 completes the descent, and the guide pin 36 on the rotating rod 3 is opposite to the guide part 62. Subsequently, the telescopic end 71 continues to pull the rotating arm 37 through the protrusion 73, and the rotating rod 3 and the support rod 2 slide together. The guide pin 36 enters the guide part 62 and limits the rotation of the rotating rod 3. After the rotating rod 3 and the support rod 2 slide, a part of the workpiece is sent into the chuck 11, and the workpiece is clamped, rotated and machined by the moving cutter 12. In the process of turning and machining the workpiece, the steel ball 33 on the assembly ring 31 buffers the workpiece through the action of the buffer block 32 and the first spring 34, so as to strengthen the stability of the workpiece in the process of rotation. After the turning is completed, the hydraulic rod 7 is extended in the reset process, and the guide pin 36 is limited in the guide part 62, so that the workpiece is taken off from the chuck 11. After the guide pin 36 slides to the rotating part 61 and is separated from the guide part 62, the telescopic end 71 of the hydraulic rod 7 continues to extend, so that the assembly ring 31 rotates and resets. In the process of rotating and resetting, the lifting pipe 4 rises, and in the process of rising, the top of the first abutment pin 51 and the second abutment pin 53 abuts against the workpiece and compresses the second spring 52. In this way, the workpiece can be taken off from the assembly ring 31 more conveniently.

[0052] The foregoing merely illustrates some exemplary embodiments of the application, and it will be appreciated that those skilled in the art will be able to devise various modifications without departing from the spirit and scope of the application. The appended drawings and description are illustrative only, and are not intended to be limiting.

Claims

1. A turning apparatus for machining metal joints, comprising a lathe body (1), a chuck (11), and a cutting tool (12), characterized in that, It also includes a support rod (2), on which a rotating rod (3) is rotatably mounted, and on which an assembly ring (31) is fixedly mounted; A fixed rod (6) is fixedly installed on the lathe body (1), and a sliding groove (63) is provided on the fixed rod (6). A sliding block (23) is fixedly installed on the support rod (2), and the sliding block (23) is slidably installed in the sliding groove (63). It also includes a lifting tube (4), on which two reciprocating rods (5) are slidably arranged. A first abutting pin (51) and a second abutting pin (53) are slidably arranged on the two reciprocating rods (5). The first abutting pin (51) and the second abutting pin (53) cooperate with each other to correct the position of the workpiece. It also includes a relaxation component, which causes the lifting tube (4) to move down with the first abutment pin (51) and the second abutment pin (53) when the rotating rod (3) and the assembly ring (31) rotate, so that the first abutment pin (51) and the second abutment pin (53) are separated from the workpiece; A roller (41) is rotatably mounted on the lifting tube (4), and a torsion spring (43) is provided between the roller (41) and the lifting tube (4). A connecting rope (42) is provided between the spool (41) and the two reciprocating rods (5). The two ends of the connecting rope (42) are fixedly connected to the spool (41) and the reciprocating rods (5) respectively, and are wound around the spool (41). The first abutment pin (51) and the second abutment pin (53) are both fixedly provided with a second spring (52) between them and the corresponding reciprocating rod (5). The first abutment pin (51) is provided with a slope (55); A guide pin (36) is fixedly provided on the rotating rod (3), and a guide groove is provided on the fixed rod (6), and the guide pin (36) is adapted to the guide groove; The guide groove includes a guide part (62) and a rotating part (61). When the guide pin (36) is located in the rotating part (61), the rotating rod (3) is in a rotating state. When the guide pin (36) enters the guide part (62), the rotating rod (3) is in a sliding state. A rotating arm (37) is fixedly installed on the rotating rod (3), and a slot (38) is provided on the rotating arm (37). A hydraulic rod (7) is fixedly installed on the lathe body (1), and a crossbar (72) is fixedly installed on the telescopic end (71) of the hydraulic rod (7). A protrusion (73) is fixedly installed on the crossbar (72), and the protrusion (73) is slidably installed in the slot (38).

2. The turning apparatus based on metal joint machining according to claim 1, characterized in that, The assembly ring (31) is provided with multiple sets of buffer components, and the multiple sets of buffer components are arranged in a circumferential array; The buffer includes a buffer block (32) slidably disposed on the assembly ring (31), a steel ball (33) is rolled on the buffer block (32), and a first spring (34) is disposed between the buffer block (32) and the assembly ring (31), with the two ends of the first spring (34) being fixedly connected to the buffer block (32) and the assembly ring (31) respectively.

3. A turning apparatus based on metal joint machining according to claim 1, characterized in that, The relaxation component includes a straight rod (45) fixedly mounted on the lifting tube (4), a spiral groove (35) provided on the rotating rod (3), a through hole (21) provided on the support rod (2), the straight rod (45) being slidably mounted in the through hole (21), and one end of the straight rod (45) being slidably mounted in the spiral groove (35).

4. A turning apparatus based on metal joint machining according to claim 1, characterized in that, A limiting block (44) is fixedly installed on the lifting pipe (4), and a limiting groove (22) is provided on the support rod (2). The limiting block (44) is slidably installed in the limiting groove (22).

5. A turning apparatus based on metal joint machining according to claim 1, characterized in that, Both the first abutment pin (51) and the second abutment pin (53) are provided with arc-shaped surfaces (54).

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