Piston rod cutting device with good stability

Abstract

The invention relates to the field of piston rod cutting, in particular to a good-stability piston rod cutting device which comprises a machining cutting table, a clamping table fixedly mounted on the outer side surface of the top of the machining cutting table, and a limiting rail strip detachably mounted on the top of the machining cutting table and located at the edge position of one side of the clamping table. The swing arm is movably connected to the edge of one side of the machining cutting table in a sleeving mode, the piston rod is movably connected to the inner side wall face of the clamping table and the inner side wall face of the limiting rail strip in a sleeving mode, and a lifting top cover is movably connected to the top surface of the clamping table in a sleeving mode. When the piston rod is pushed out, the swing plate and the attaching plate can be completely stripped from the surface of the piston rod, after the piston rod is pushed out, the piston rod can be separated from the interior of the pushing plate under the pushing of inertia, workers do not need to detach and strip the piston rod, and the effect that the surface of the piston rod has no extrusion adhesive force is achieved; and the piston rod can be automatically pushed and stripped under the pushing of inertia under the elastic pushing of the stretch yarn.

Description

Technical Field

[0001] The invention belongs to the technical field of piston rod cutting, in particular to a piston rod cutting device with good stability. Background Art

[0002] The piston rod cutting device is a mechanical device used to process piston rods. It is particularly important in the field of hydraulic cylinder production and application. The piston rod is a connecting component that supports the piston to do work. It is mainly used in oil cylinders and cylinder motion actuators. It is a moving component with frequent movements and high technical requirements. The processing quality of the piston rod directly affects the life and reliability of the entire product. Therefore, there are strict requirements on the processing accuracy and surface roughness of the piston rod.

[0003] A patent with announcement number CN 117226540 A discloses a piston rod cutting device with good stability, including a device housing, and also including: a square hole, which is opened in the middle of the top of the device housing; a cutting mechanism, which runs through both sides of the square hole, the cutting mechanism includes two cutting discs, the two cutting discs are located on both sides of the top of the square hole, a first motor shaft is fixed at the bottom of the cutting disc, a first motor is connected to the bottom of the first motor shaft through the square hole, and a first electric telescopic cylinder is fixed at the bottom of the first motor. The present invention combines the second motor, the first electric telescopic cylinder and the cutting disc, not only can the second motor be used to drive the two cutting discs to adjust their positions at the same time, but also the two cutting discs can be used to cut from both sides of the first electric telescopic cylinder, thereby increasing the force points for cutting the piston rod and avoiding deformation of the piston rod during the cutting process. Moreover, since the first electric telescopic cylinder is provided, the height of the cutting disc can be adjusted through the first electric telescopic cylinder, thereby adjusting the cutting height.

[0004] In the current prior art, when the existing piston rod is cut, in order to prevent the piston rod from shaking too much when being cut again, a specific fixing device is generally used to position the piston rod at the edge position where the piston rod needs to be cut, so as to ensure that the piston rod does not shake too much when being cut. However, this fixing method is relatively cumbersome, so that after the piston rod is cut, the remaining piston rod needs to be disassembled, and a new piston rod is installed. A lot of time will be wasted in this cumbersome process of installation, disassembly and re-installation, and some sharp burr edges will be left at the cut edge of the cut piston rod, so that employees will be scratched during the disassembly process, and it is impossible to ensure that stability can be provided while the piston rod can be quickly disassembled.

[0005] To this end, the present invention provides a piston rod cutting device with good stability. Summary of the invention

[0006] In order to make up for the deficiencies of the prior art, at least one technical problem raised in the background technology is solved.

[0007] The technical solution adopted by the present invention to solve its technical problems is as follows: the piston rod cutting device with good stability described in the present invention comprises a machining and cutting table and a clamping table fixedly installed on the outer surface of the top of the machining and cutting table, a limiting track bar detachably installed on the top of the machining and cutting table and located at the edge position of one side of the clamping table, a swing arm movably sleeved on the edge position of one side of the machining and cutting table, a piston rod movably sleeved on the inner wall surface of the clamping table and the limiting track bar, a lifting top cover movably sleeved on the top surface of the clamping table, and lock buckles are symmetrically arranged on the edge positions of both sides of the clamping table and the lifting top cover, An elastic wire is fixedly connected to the inner wall surface of the clamping platform, and one end of the elastic wire is fixedly connected to a pushing plate that is movably sleeved on the inner wall surface of the clamping platform and the lifting top cover. A limiting strip 1 is fixedly connected to the outer surface of the pushing plate and is located at the edge positions around it. A swing plate movably fitted on the inner wall surface of the clamping platform and the lifting top cover is swingably connected to the outer surface of the limiting strip 1. An arc-shaped extrusion strip movably fitted on the inner wall surface of the lifting top cover is fixedly connected to the outer surface of the swing plate. A fitting plate movably fitted on the outer surface of the piston rod is fixedly connected to the inner wall surface of the swing plate.

[0008] Preferably, a second limit strip is provided on the inner wall surfaces on both sides of the limit track strip, a slider is slidably sleeved on the inner wall surface of the limit track strip and the outer surface of the second limit strip, a lap ring is provided on the top surface of the slider, and a limiting slide groove is provided on both side surfaces of the lap ring.

[0009] Preferably, a docking groove is provided on one end surface of the lap ring and at the bottom edge position, an arc-shaped slider is slidably sleeved on the inner wall surface of the limiting slide groove, and a side positioning strip that slides and fits smoothly on the outer surface of the lap ring is fixedly connected to the outer surface of the arc-shaped slider.

[0010] Preferably, an extrusion limit column arranged on the inner wall surface of the docking slot is movably sleeved on one end surface of the side positioning strip, and an anti-slip soft strip movably fitted on the outer surface of the piston rod is fixedly connected to the inner wall surface of the lap ring.

[0011] Preferably, a motor is fixedly mounted on one end of the swing arm, a protective shell is fixedly mounted on the outer surface of one end of the swing arm and located on the outer surface of the motor, and a cutting knife is fixedly connected to the output end of the motor.

[0012] Preferably, a closing cover is swingably connected to the surface of the protective shell, and a blower is provided on the surface of the closing cover and at a middle position.

[0013] Preferably, an anti-sway arc plate is fixedly connected to the inner wall surface of the bonding plate, and swing soft heads are provided on the two end surfaces of the anti-sway arc plate. An anti-slip soft block that is movably bonded to the outer surface of the piston rod is fixedly connected to the inner wall surface of the anti-sway arc plate.

[0014] Preferably, a cutting groove is provided on the top surface of the machining and cutting table and at the edge position at the entrance of the clamping table, and a limiting rod movably sleeved on the outer surface of one end of the swing arm is fixedly connected to the surface of the machining and cutting table and at the edge position on one side.

[0015] The beneficial effects of the present invention are as follows: 1. A piston rod cutting device with good stability described in the present invention docks one end of the piston rod with the surface of the pushing plate and squeezes the pushing plate. As the pushing plate continuously moves on the inner side of the clamping platform, the arc-shaped extrusion strip on the outer surface of the pushing plate will contact and extrude with the edge position of the entrance of the clamping platform and the lifting top cover, and the swing plate on the outer surface of the arc-shaped extrusion strip is gathered and closed with the piston rod as the center point, and the lifting top cover is pressed down with the lock buckle, thereby squeezing and fitting the arc-shaped extrusion strips on the outer surface of the swing plate, thereby making the fitting plate on the inner wall of the swing plate tightly fit the surface of the piston rod, and the fitting plate on the inner wall of the clamping platform can make the piston rod and the fitting plate in a horizontal state, so as to achieve the effect of using the fitting plate on the outer surface of the swing plate to tightly fit the surface of the piston rod, and using multiple fitting plates to omni-directionally squeeze and fit the piston rod, so that the piston rod can be fixed in multiple aspects; 2. The piston rod cutting device described in the present invention has good stability. After the cutting knife cuts the piston rod, the lifting top cover is lifted in cooperation with the lock buckle. When the extrusion pressure of the clamping platform and the lifting top cover on the pushing plate and the swinging plate disappears, the compressed elastic wire will elastically push the pushing plate, and then push the pushing plate out from the internal elastic force of the clamping platform. When the surface of the swinging plate and the arc-shaped extrusion strip are completely moved out from the inside of the clamping platform and the lifting top cover, the swinging plate and the bonding plate will be completely peeled off from the surface of the piston rod. As the piston rod is pushed out, the piston rod will detach from the inside of the pushing plate under the push of inertia. There is no need for employees to disassemble and peel off the piston rod, so that the surface of the piston rod has no extrusion adhesion, and the piston rod is automatically pushed and peeled off under the elastic push of the elastic wire. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The present invention will be further described below in conjunction with the accompanying drawings.

[0017] Figure 1 is a stereogram of the present invention; Figure 2 It is a perspective view of the expansion of the clamping platform in the present invention; Figure 3 It is a cutaway stereoscopic view of the clamping platform in the present invention; Figure 4 It is a three-dimensional diagram of the position-limiting track strip in the present invention; Figure 5 It is a partial cutaway stereoscopic view of the laminated plate of the present invention; Figure 6 It is a perspective view of the swing arm in the present invention.

[0018] In the figure: 11, machining and cutting table; 111, cutting groove; 112, limiting rod; 12, clamping table; 121, lifting top cover; 122, lock; 123, elastic wire; 124, pushing plate; 125, limiting strip 1; 126, swing plate; 127, arc extrusion strip; 128, laminating plate; a1, anti-sway arc plate; a2, swing soft head; a3, anti-skid soft block; 13, limiting track strip ; 131. Limiting strip 2; 132. Sliding block; 133. Overlap ring; 134. Limiting slide groove; 135. Docking slot; 136. Anti-skid soft strip; 137. Side positioning strip; 138. Arc-shaped sliding block; 139. Extrusion limiting column; 14. Swing arm; 141. Protective cover; 142. Motor; 143. Cutting knife; 144. Closing cover; 145. Blower; 15. Piston rod. DETAILED DESCRIPTION

[0019] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further explained below in conjunction with specific implementation methods.

[0020] like Figures 1 to 6As shown, a piston rod cutting device with good stability according to an embodiment of the present invention comprises a machining and cutting table 11 and a clamping table 12 fixedly mounted on the outer surface of the top of the machining and cutting table 11, a limiting track bar 13 detachably mounted on the top of the machining and cutting table 11 and located at an edge position of one side of the clamping table 12, a swing arm 14 movably sleeved on an edge position of one side of the machining and cutting table 11, a piston rod 15 movably sleeved on the inner wall surface of the clamping table 12 and the limiting track bar 13, a lifting top cover 121 movably sleeved on the top surface of the clamping table 12, and lock buckles 122 are symmetrically arranged on the edge positions of both sides of the clamping table 12 and the lifting top cover 121, and a locking buckle 122 is fixed on the inner wall surface of the clamping table 12. An elastic wire 123 is fixedly connected, and a pushing plate 124 that is movably sleeved on the inner wall of the clamping platform 12 and the lifting top cover 121 is fixedly connected to one end of the elastic wire 123. A limiting strip 125 is fixedly connected to the outer surface of the pushing plate 124 and located at the surrounding edge positions. A swinging plate 126 that is movably fitted on the inner wall of the clamping platform 12 and the lifting top cover 121 is swingably connected to the outer surface of the limiting strip 125. An arc-shaped extrusion strip 127 that is movably fitted on the inner wall of the lifting top cover 121 is fixedly connected to the outer surface of the swinging plate 126. A fitting plate 128 that is movably fitted on the outer surface of the piston rod 15 is fixedly connected to the inner wall of the swinging plate 126.

[0021] Before cutting the piston rod, one end of the piston rod 15 is docked on the surface of the push plate 124, and the piston rod 15 is used to squeeze the push plate 124, and then the push plate 124 is squeezed and extended into the inner wall of the clamping platform 12. As the push plate 124 continues to move inside the clamping platform 12, the arc-shaped extrusion strip 127 on the outer surface of the push plate 124 will contact and extrude the edge position of the entrance of the clamping platform 12 and the lifting top cover 121, and make the swing plate 126 on the outer surface of the arc-shaped extrusion strip 127 gather and close with the piston rod 15 as the center point. When one end of the piston rod 15 extends to the depth of the clamping platform 12, the lock buckle 122 is used to press down the lifting top cover 121, thereby squeezing and fitting the arc-shaped extrusion strips 127 on the outer surfaces of multiple swing plates 126, so that the inner wall of the swing plate 126 The laminating plate 128 on the upper surface of the swing plate 126 is tightly fitted to the surface of the piston rod 15, and the laminating plate 128 on the inner wall of the horizontal and clamping platform 12 can make the piston rod 15 and the laminating plate 128 in a horizontal state, so that when the piston rod 15 is cut, there will be no defects on the cutting surface of the piston rod 15 due to the inclination of the piston rod 15. The laminating plate 128 on the outer surface of the swing plate 126 is tightly fitted to the surface of the piston rod 15, and the piston rod 15 is fully squeezed and fitted by multiple laminating plates 128, so that the piston rod 15 is fixed in multiple aspects; it avoids the cumbersome fixing method of the traditional piston rod, so that after the piston rod is cut, the remaining piston rod needs to be disassembled and a new piston rod needs to be installed, and a lot of time will be wasted in this cumbersome process of installation, disassembly and reinstallation.

[0022] like Figures 1 to 3 and Figure 4 As shown, a limiting strip 131 is provided on the inner wall surfaces of both sides of the limiting track strip 13, and a slider 132 is slidably sleeved on the inner wall surface of the limiting track strip 13 and the outer surface of the limiting strip 131, and a lap ring 133 is provided on the top surface of the slider 132. A limiting slide groove 134 is provided on the two side surfaces of the lap ring 133, and a docking slot 135 is provided on one end surface of the lap ring 133 and located at the bottom edge position, and an arc-shaped slider 138 is slidably sleeved on the inner wall surface of the limiting slide groove 134, and a side positioning strip 137 that slides and fits on the outer surface of the lap ring 133 is fixedly connected on the outer surface of the arc-shaped slider 138, and an extrusion limiting column 139 arranged on the inner wall surface of the docking slot 135 is movably sleeved on one end surface of the side positioning strip 137, and an anti-slip soft strip 136 that movably fits on the outer surface of the piston rod 15 is fixedly connected on the inner wall surface of the lap ring 133.

[0023] At the same time, the slider 132 slides on the inner wall of the limiting track bar 13, the lap ring 133 on the top surface of the slider 132 is fitted to the top surface of the piston rod 15, and the side positioning strip 137 on the inner wall of the limiting slide groove 134 is stretched and slid, so that the side positioning strip 137 is wrapped around the surface of the piston rod 15, and the side positioning strip 137 squeezes the surface of the piston rod 15 while rotating, thereby increasing the soft fit between the piston rod 15 and the anti-skid soft strip 136 on the inner wall of the lap ring 133, and increasing the anti-skid property between the anti-skid soft strip 136 and the piston rod 15 After the lap ring 133 and the side positioning strip 137 have fixed the piston rod 15, the extrusion limit column 139 on the outer surface of the side positioning strip 137 is used to pass through the docking slot 135 to firmly fix the side positioning strip 137, so that the surface of the piston rod 15 is staggered and extruded and fixed by two groups of side positioning strips 137 and the lap ring 133. At the same time, the clamping platform 12 and the slider 132 can simultaneously support the edge positions of both ends of the piston rod 15, so that when the piston rod 15 is cut, the extrusion of the cutting knife 143 will not cause the outer edge position of the piston rod 15 to be pressed down and deformed.

[0024] like Figure 1 and Figure 6 As shown, a motor 142 is fixedly installed on one end of the swing arm 14, a protective shell 141 is fixedly installed on the outer surface of one end of the swing arm 14 and located on the outer surface of the motor 142, a cutting knife 143 is fixedly connected to the output end of the motor 142, a closing cover 144 is swingably connected to the surface of the protective shell 141, a blower 145 is provided on the surface of the closing cover 144 and located in the middle position, an anti-sway arc plate a1 is fixedly connected to the inner wall surface of the bonding plate 128, swing soft heads a2 are provided on the two end surfaces of the anti-sway arc plate a1, an anti-slip soft block a3 that is movably fitted on the outer surface of the piston rod 15 is fixedly connected to the inner wall surface of the anti-sway arc plate a1, a cutting groove 111 is opened on the top surface of the machining cutting table 11 and at the edge position at the entrance of the clamping table 12, and a limiting rod 112 that is movably sleeved on the outer surface of one end of the swing arm 14 is fixedly connected to the surface of the machining cutting table 11 and at the edge position of one side.

[0025] After the cutting knife 143 has cut the piston rod 15, the locking buckle 122 is used to lift the lifting cover 121. When the squeezing force of the clamping platform 12 and the lifting cover 121 on the pushing plate 124 and the swinging plate 126 disappears, the compressed elastic wire 123 will elastically push the pushing plate 124, and then push the pushing plate 124 out from the internal elastic force of the clamping platform 12. When the surface of the swinging plate 126 and the arc-shaped squeezing strip 127 are completely moved out from the inside of the clamping platform 12 and the lifting cover 121, the swinging plate 126 and the fitting plate 128 will be completely peeled off from the surface of the piston rod 15. As the piston rod 15 is pushed out, the piston rod 15 will be pushed out from the pushing plate 124 under the push of inertia. The inside of 124 is detached, and the employee does not need to disassemble and peel off the piston rod 15, so that the surface of the piston rod 15 has no extrusion adhesion, and the piston rod 15 is pushed by the elasticity of the elastic wire 123 and the piston rod 15 is automatically pushed and peeled off under the push of inertia, thereby avoiding the need to disassemble the remaining piston rod after the piston rod is cut, and to install a new piston rod. A lot of time will be wasted in the tedious process of installation, disassembly and re-installation, and some sharp burr edges will be left at the cut edge of the cut piston rod, so that the employee will be scratched during the disassembly process, and it is impossible to ensure that the piston rod can be provided with stability and can be quickly disassembled.

[0026] Working principle: before cutting the piston rod, one end of the piston rod 15 is docked on the surface of the push plate 124, and the piston rod 15 is used to squeeze the push plate 124, and then the push plate 124 is squeezed and extended into the inner wall of the clamping platform 12. As the push plate 124 continues to move inside the clamping platform 12, the arc-shaped extrusion strip 127 on the outer surface of the push plate 124 will contact and extrude the edge position of the entrance of the clamping platform 12 and the lifting top cover 121, and the swing plate 126 on the outer surface of the arc-shaped extrusion strip 127 will gather and close with the piston rod 15 as the center point. When one end of the piston rod 15 extends to the depth of the clamping platform 12, the piston rod 15 is used to squeeze the push plate 124. The locking buckle 122 presses down the lifting top cover 121, and then squeezes and fits the arc-shaped extrusion strips 127 on the outer surfaces of the plurality of swing plates 126, so that the fitting plate 128 on the inner wall surface of the swing plate 126 is tightly fitted to the surface of the piston rod 15, and the fitting plate 128 on the inner wall surface of the horizontal and clamping platform 12 can make the piston rod 15 and the fitting plate 128 in a horizontal state, so that when the piston rod 15 is cut, there will be no defects on the cutting surface of the piston rod 15 due to the inclination of the piston rod 15, so that the fitting plate 128 on the outer surface of the swing plate 126 is tightly fitted to the surface of the piston rod 15, and the plurality of The laminating plates 128 omnidirectionally squeeze and fit the piston rod 15, so that the piston rod 15 is fixed in multiple aspects; at the same time, the slider 132 slides on the inner wall of the limiting track bar 13, so that the lap ring 133 on the top surface of the slider 132 is fitted to the top surface of the piston rod 15, and the side positioning strips 137 on the inner wall of the limiting slide groove 134 are stretched and slid, so that the side positioning strips 137 are wrapped around the surface of the piston rod 15, and the side positioning strips 137 squeeze the surface of the piston rod 15 while rotating, thereby increasing the soft fit between the piston rod 15 and the anti-skid soft strips 136 on the inner wall of the lap ring 133, The anti-skid property between the anti-skid soft strip 136 and the piston rod 15 is increased. After the piston rod 15 is fixed by the lap ring 133 and the side positioning strip 137, the extrusion limit column 139 on the outer surface of the side positioning strip 137 is passed through the docking slot 135 to firmly fix the side positioning strip 137, so that the surface of the piston rod 15 is staggered and extruded and fixed by two groups of side positioning strips 137 and the lap ring 133. At the same time, the edge positions of both ends of the piston rod 15 can be supported at the same time by the clamping platform 12 and the slider 132, so that when the piston rod 15 is cut, the extrusion of the cutting knife 143 will not cause the outer edge position of the piston rod 15 to be pressed down and deformed;The swing arm 14 on the outer surface of the limiting rod 112 is swung, and the motor 142 on one end of the swing arm 14 is used to rotate the cutting knife 143 to cut the piston rod 15 at the position of the protruding clamping platform 12, and the blower 145 on the inner wall of the closing cover 144 is used to blow air to the cutting knife 143, and the residual heat at the cutting position of the cutting knife 143 is quickly cooled down by the flow of gas. After the cutting is completed, the piston rod 15 cooperates with the slider 132 to move to the edge position of one side on the inner wall of the limiting track bar 13; when the cutting knife 143 has cut the piston rod 15, when the lifting cover 121 is lifted, when the squeezing force of the clamping platform 12 and the lifting cover 121 on the push plate 124 and the swing plate 126 disappears, the piston rod 15 is compressed. The rear elastic wire 123 will elastically push the push plate 124, and then push the push plate 124 out from the internal elastic force of the clamping platform 12. When the surfaces of the swing plate 126 and the arc-shaped extrusion strip 127 are completely moved out from the inside of the clamping platform 12 and the lifting top cover 121, the swing plate 126 and the bonding plate 128 will be completely peeled off from the surface of the piston rod 15. As the piston rod 15 is pushed out, the piston rod 15 will be separated from the inside of the push plate 124 under the push of inertia, and the staff does not need to disassemble and peel the piston rod 15. The surface of the piston rod 15 has no extrusion adhesion, and the piston rod 15 is pushed by the elastic force of the elastic wire 123 and the piston rod 15 is automatically pushed and peeled off under the push of inertia. ;

[0027] The above shows and describes the basic principles, main features and advantages of the present invention. It should be understood by those skilled in the art that the present invention is not limited to the above embodiments. The above embodiments and descriptions are only for explaining the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. A piston rod cutting device with good stability, comprising a machining and cutting table (11) and a clamping table (12) fixedly mounted on the outer surface of the top of the machining and cutting table (11), a limit track bar (13) detachably mounted on the top of the machining and cutting table (11) and located at an edge position of one side of the clamping table (12), a swing arm (14) movably sleeved on an edge position of one side of the machining and cutting table (11), and a piston rod (15) movably sleeved on the inner wall surface of the clamping table (12) and the limit track bar (13), characterized in that: A lifting cover (121) is movably sleeved on the top surface of the clamping platform (12), and lock buckles (122) are symmetrically arranged on the edge positions of both sides of the clamping platform (12) and the lifting cover (121). An elastic wire (123) is fixedly connected to the inner wall surface of the clamping platform (12), and one end of the elastic wire (123) is fixedly connected to a push plate (124) movably sleeved on the inner wall surface of the clamping platform (12) and the lifting cover (121). The outer surface of the push plate (124) is located on the four sides. A limit strip (125) is fixedly connected to the edge position of the limit strip (125), the outer surface of the limit strip (125) is swingably connected to a swing plate (126) that movably fits on the inner wall of the clamping platform (12) and the lifting top cover (121), the outer surface of the swing plate (126) is fixedly connected to an arc-shaped extrusion strip (127) that movably fits on the inner wall of the lifting top cover (121), and the inner wall of the swing plate (126) is fixedly connected to a fitting plate (128) that movably fits on the outer surface of the piston rod (15).

2. A piston rod cutting device with good stability according to claim 1, characterized in that: A second limiting strip (131) is provided on the inner wall surfaces on both sides of the limiting track strip (13), a slider (132) is slidably sleeved on the inner wall surface of the limiting track strip (13) and the outer surface of the second limiting strip (131), a lap ring (133) is provided on the top surface of the slider (132), and limiting sliding grooves (134) are provided on the two side surfaces of the lap ring (133).

3. A piston rod cutting device with good stability according to claim 2, characterized in that: A docking slot (135) is provided on one end surface of the lap ring (133) and at the bottom edge thereof, an arc-shaped slider (138) is slidably sleeved on the inner wall surface of the limiting slide groove (134), and a side positioning strip (137) that is slidably fitted on the outer surface of the lap ring (133) is fixedly connected on the outer surface of the arc-shaped slider (138).

4. A piston rod cutting device with good stability according to claim 3, characterized in that: An extrusion limiting column (139) arranged on the inner wall surface of the docking slot (135) is movably sleeved on one end surface of the side positioning strip (137), and an anti-slip soft strip (136) movably fitted on the outer surface of the piston rod (15) is fixedly connected to the inner wall surface of the lap ring (133).

5. A piston rod cutting device with good stability according to claim 1, characterized in that: A motor (142) is fixedly mounted on one end of the swing arm (14); a protective casing (141) is fixedly mounted on the outer surface of one end of the swing arm (14) and located on the outer surface of the motor (142); and a cutting knife (143) is fixedly connected to the output end of the motor (142).

6. A piston rod cutting device with good stability according to claim 5, characterized in that: A closing cover (144) is swingably connected to the surface of the protective sleeve shell (141), and a blower (145) is provided at a middle position on the surface of the closing cover (144).

7. A piston rod cutting device with good stability according to claim 1, characterized in that: An anti-sway arc plate (a1) is fixedly connected to the inner wall surface of the bonding plate (128), and swing soft heads (a2) are arranged on the two end surfaces of the anti-sway arc plate (a1). An anti-slip soft block (a3) ​​that is movably bonded to the outer surface of the piston rod (15) is fixedly connected to the inner wall surface of the anti-sway arc plate (a1).

8. A piston rod cutting device with good stability according to claim 1, characterized in that: A cutting groove (111) is provided on the top surface of the machining and cutting table (11) and at an edge position at the entrance of the clamping table (12). A limiting rod (112) movably sleeved on the outer surface of one end of the swing arm (14) is fixedly connected to the surface of the machining and cutting table (11) and at an edge position on one side.

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