Metal stroke rolling calibration system

Abstract

The utility model relates to the field of metal material processing and testing equipment, and discloses a metal stroke rolling calibration system which comprises a rack, a supporting plate arranged above the rack, a pressure head mechanism arranged above the supporting plate and a rolling mechanism arranged below the supporting plate. A lifting and rotating mechanism for driving the rolling mechanism to lift and rotate is arranged in the rack; the rolling mechanism comprises a hob and a roller; the pressure head mechanism comprises a pressure head body and is further provided with a displacement detection device and a pressure detection device which are used for measuring displacement and bearing pressure of the metal piece. The displacement detection device and the pressure detection device are used for measuring the displacement and the bearing pressure of the metal part in the rolling process, so that the system can monitor and control the rolling force and the stroke of the rolling mechanism in real time, the problem of stroke rolling errors caused by equipment performance deviation is solved, and the product quality and the production efficiency are improved.

Description

Technical Field

[0001] The utility model relates to the field of metal material processing and testing equipment, in particular to a metal stroke rolling calibration system. Background Art

[0002] Metal rolling is a chipless processing that utilizes the plastic deformation of metal. It is commonly used for processing the internal and external rotating surfaces of shafts and sleeves. It can also be used to roll the threads of screws, bolts and other parts, as well as rolling small-module gears and knurling. The principle is to use rollers to roll the metal surface, flatten the raised parts of the surface, and raise the recessed parts, and finally process it into a mirror-smooth surface.

[0003] In the field of metal processing, it is very important to accurately control the stroke of metal materials during rolling, which requires the rolling equipment to have high precision and reliability; however, the existing rolling equipment may experience a decrease in accuracy after long-term use, so an effective calibration system is needed to ensure the accuracy of the rolling equipment. Utility Model Content

[0004] The problem to be solved by the utility model is to provide a metal stroke rolling calibration system. Under the action of the pressure head mechanism, one end of the metal piece passes through the positioning hole on the support plate and enters between the hob and the roller of the rolling mechanism. After the hob and the roller are clamped, the rolling mechanism drives the roller and the hob to move down and rotate under the drive of the lifting and rotating mechanism to perform stroke rolling on the metal piece, and the displacement and pressure of the metal piece are measured by a displacement detection device and a pressure detection device, so as to adjust the rolling intensity and stroke and improve the accuracy and precision of the rolling.

[0005] In order to achieve the above purpose, the technical solution adopted by the utility model is:

[0006] A metal stroke rolling calibration system comprises a frame, a support plate for placing metal parts is arranged above the frame, a pressure head mechanism capable of lifting and lowering is arranged above the support plate, a rolling mechanism is arranged below the support plate, and a lifting and rotating mechanism for driving the rolling mechanism to lift and rotate is arranged inside the frame;

[0007] The rolling mechanism includes a roller cutter and a roller that are relatively arranged and can synchronously move horizontally toward the axial position of the metal part; the pressure head mechanism includes a pressure head body that can press against the top of the metal part, and the pressure head mechanism is also provided with a displacement detection device and a pressure detection device for measuring the displacement and pressure of the metal part, and one end of the metal part can pass through the positioning hole on the support plate to the middle of the roller cutter and the roller.

[0008] Optionally, a gantry is fixedly installed on the top of the frame, a slide that can be raised and lowered is slidably installed on the inner side of the gantry, the pressure head mechanism is installed on the slide, and the support plate is fixedly installed on the inner side of the gantry.

[0009] Optionally, a first telescopic component is installed on the top of the gantry, and an output end of the first telescopic component is connected to the slide.

[0010] Optionally, the pressing head mechanism further comprises a shell fixedly connected to the slide, and a fixed block, an intermediate block and a pressing block capable of sliding are sequentially arranged on the inner side of the shell from top to bottom; one end of the pressing block is connected to the pressing head body, and the other end can abut against the intermediate block;

[0011] The pressure detection device is arranged between the fixed block and the intermediate block, the displacement detection device is installed on the top of the fixed block, and the test rod of the displacement detection device passes through the fixed block, the pressure detection device and the intermediate block in sequence and is connected to the pressure block.

[0012] Optionally, a guide plate is provided on the outer sliding sleeve of the pressure head body, a guide rod is fixedly connected to one side of the guide plate, one end of the guide rod is movably inserted into the shell, and a spring is provided on the guide rod between the shell and the guide plate.

[0013] Optionally, the rolling mechanism further includes a bottom plate and a second telescopic assembly, the bottom plate is connected to the output end of the lifting and rotating mechanism, a first slider and a second slider opposite to each other are arranged above the bottom plate, both of which are slidably connected to the bottom plate, and two ends of the second telescopic assembly are respectively connected to the first slider and the second slider;

[0014] A tool holder is fixedly mounted on the first sliding block, and the roller is rotatably mounted on the end of the tool holder. A wheel frame is fixedly mounted on the second sliding block, and the roller is rotatably mounted on the end of the wheel frame.

[0015] Optionally, one hob is provided, two rollers are provided, and the hob and the rollers are distributed in a herringbone shape.

[0016] Optionally, the lifting and rotating mechanism includes a bracket fixedly connected to the frame, a nut sleeve is rotatably installed inside the bracket, a screw rod is threaded through the inside of the nut sleeve, a rotatable push rod is connected to the upper end of the screw rod, and the upper end of the push rod is fixedly connected to the base plate.

[0017] Optionally, a rotating shaft for driving the nut sleeve and the push rod to rotate is rotatably mounted on one side of the frame, and the rotating shaft is connected to the nut sleeve and the push rod through a first transmission assembly and a second transmission assembly respectively.

[0018] Optionally, a sleeve is sleeved on the outside of the push rod, a support plate is fixedly connected to the outside of the sleeve, and the support plate is slidably connected to the frame.

[0019] Beneficial Effects

[0020] (1) In the present invention, a displacement detection device and a pressure detection device are used to measure the displacement and pressure of a metal part during the rolling process, so that the system can monitor and control the rolling force and stroke of the rolling mechanism in real time, so as to solve the problem of stroke rolling error caused by equipment performance deviation and improve product quality and production efficiency.

[0021] (2) In the present invention, the guide plate and the guide rod can not only ensure the accuracy of the downward movement of the pressure head body, but also achieve the effect of buffering and absorbing energy through the spring between the shell and the guide plate, thereby avoiding the impact between the pressure head mechanism and the support plate when the pressure head mechanism moves downward, and preventing the impact force from causing damage to the mechanism parts.

[0022] (3) The nut sleeve and the push rod in the utility model can be driven by the same rotating shaft through the first and second transmission components, that is, the nut sleeve and the push rod rotate synchronously. This not only simplifies the structure of the lifting and rotating mechanism so that it occupies a smaller space, but also ensures that there is a certain linear relationship between the rotation angle and the lifting height of the rolling mechanism, which is convenient for controlling the rolling stroke. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a structural schematic diagram of the utility model;

[0024] Figure 2 It is a structural schematic diagram of the gantry of the utility model;

[0025] Figure 3 This is a schematic diagram of the main structure of the gantry of the utility model;

[0026] Figure 4 It is a structural schematic diagram of the pressure head mechanism of the utility model;

[0027] Figure 5 It is a structural schematic diagram of the lifting and rotating mechanism of the utility model;

[0028] Figure 6 This is a schematic diagram of the axonometric structure of the lifting and rotating mechanism of the utility model;

[0029] Figure 7 It is a structural schematic diagram of the rolling mechanism of the utility model;

[0030] Among them, 1. frame; 2. gantry; 21. support plate; 22. positioning hole; 23. first telescopic component; 3. slide; 4. pressure head mechanism; 41. shell; 42. fixed block; 43. middle block; 44. pressure block; 45. pressure head body; 46. guide plate; 47. guide rod; 48. spring; 5. rolling mechanism; 51. tool holder; 52. roller; 53. wheel frame; 54. roller; 55. bottom plate; 56. first slider; 57. second slider; 58. second telescopic component; 6. lifting and rotating mechanism; 61. bracket; 62. nut sleeve; 63. screw rod; 64. push rod; 65. sleeve; 66. support plate; 67. rotating shaft; 68. first transmission component; 69. second transmission component; 7. displacement detection device; 71. test rod; 8. pressure detection device; 9. metal parts. DETAILED DESCRIPTION

[0031] The present invention will now be further described in detail in conjunction with the accompanying drawings and embodiments. These drawings are simplified schematic diagrams that only illustrate the basic structure of the present invention in a schematic manner, and therefore only show the components related to the present invention.

[0032] Embodiment 1

[0033] like Figure 1-Figure 3 As shown, a metal stroke rolling calibration system includes a frame 1, a gantry 2, a slide 3, a pressure head mechanism 4, a rolling mechanism 5, a lifting and rotating mechanism 6, a displacement detection device 7 and a pressure detection device 8.

[0034] A support plate 21 for mounting the metal component 9 is fixedly mounted on the inner side of the gantry 2. A positioning hole 22 is opened on the support plate 21 for one end of the metal component 9 to pass through. The gantry 2 is fixedly mounted on the top of the frame 1, that is, the support plate 21 is located above the frame 1.

[0035] The pressing head mechanism 4 is fixedly mounted on the slide 3, and the slide 3 is slidably mounted on the inner side of the gantry 2 through the existing slide rail assembly, and a first telescopic assembly 23 is installed on the top of the gantry 2, and the output end of the first telescopic assembly 23 is connected to the slide 3. The slide 3 can be driven to rise and fall through the telescopic output end of the first telescopic assembly 23, thereby driving the pressing head mechanism 4 to rise and fall.

[0036] The displacement detection device 7 and the pressure detection device 8 respectively adopt the existing displacement sensor and pressure sensor, both of which are arranged on the pressure head mechanism 4, and are used to measure the displacement and pressure of the metal part 9 respectively.

[0037] The lifting and rotating mechanism 6 is arranged inside the frame 1, and its function is to drive the rolling mechanism 5 to lift and rotate, and the output end of the lifting and rotating mechanism 6 can pass through the top of the frame 1 and be connected to the rolling mechanism 5; under the action of the pressing head mechanism 4, one end of the metal part 9 passes through the positioning hole 22 on the support plate 21 and enters the rolling mechanism 5 and is clamped. Then, the rolling mechanism 5 rotates and moves downward, rolling the metal part 9 in a spiral trajectory.

[0038] Among them, the slide 3 is a square structure, the output end of the first telescopic component 23 is connected to the top of the slide 3, the pressure head mechanism 4 is installed at the bottom of the slide 3, and the two sides of the slide 3 are slidably connected to the side walls of the gantry 2; the first telescopic component 23 adopts the existing electric cylinder, which is driven by a servo motor and uses the principle of screw nut transmission to retract and extend, has the advantage of high-precision motion control, and can achieve high-precision measurement and adjustment of the stroke of metal materials; the gantry 2 is located above the frame 1, the slide 3 and the pressure head mechanism 4 are located above the support plate 21, the rolling mechanism 5 is located between the support plate 21 and the lifting and rotating mechanism 6, and the lifting and rotating mechanism 6 is located on the inner side of the frame 1.

[0039] The displacement detection device 7 and the pressure detection device 8 are used to measure the displacement and pressure of the metal part 9 during the rolling process, so that the system can monitor and control the rolling force and stroke of the rolling mechanism 5 in real time to solve the stroke rolling error problem caused by equipment performance deviation and improve product quality and production efficiency.

[0040] like Figure 3-Figure 4 As shown, the pressure head mechanism 4 includes a shell 41 fixedly connected to the slide 3, and the inner side of the shell 41 is provided with a fixed block 42, an intermediate block 43 and a slidable pressure block 44 in sequence from top to bottom. One end of the pressure block 44 can be abutted against the intermediate block 43, and the other end is connected to a pressure head body 45 that can be pressed against the top of the metal part 9; the pressure detection device 8 is arranged between the fixed block 42 and the intermediate block 43, the displacement detection device 7 is installed on the top of the fixed block 42, and the test rod 71 of the displacement detection device 7 passes through the fixed block 42, the pressure detection device 8 and the intermediate block 43 in sequence and is connected to the pressure block 44.

[0041] As mentioned above, the fixed block 42 is fixedly connected to the shell 41. Under the support of the fixed block 42, the force borne by the metal part 9 can be transmitted to the pressure detection device 8 through the pressure head body 45, the pressure block 44 and the intermediate block 43 in sequence; the test rod 71 is the test end of the displacement detection device 7, which can move with the pressure block 44, so that the displacement detection device 7 can provide real-time feedback on the displacement of the metal part 9.

[0042] Among them, the end of the pressing head body 45 is connected to the metal part 9, that is, the end of the pressing head body 45 can be embedded in the interior of the metal part 9 and connected from bottom to top by screws, so that after the rolling is completed, as the pressing head mechanism 4 moves upward, the metal part 9 is driven to disengage from the positioning hole 22, making it convenient for the staff to remove it.

[0043] Furthermore, a guide plate 46 is provided on the outer sliding sleeve of the pressure head body 45, and a guide rod 47 is fixedly connected to one side of the guide plate 46. One end of the guide rod 47 is movably inserted into the shell 41, and a spring 48 is provided on the guide rod 47 between the shell 41 and the guide plate 46.

[0044] The guide rod 47, the test rod 71 and the pressure head body 45 are all perpendicular to the support plate 21. A limit block is set at the upper end of the guide rod 47 to ensure that the guide rod 47 will not separate from the shell 41; the guide plate 46 and the guide rod 47 can not only ensure the accuracy of the downward movement of the pressure head body 45, but also achieve the effect of buffering and absorbing energy through the spring 48 between the shell 41 and the guide plate 46, thereby avoiding the impact between the pressure head mechanism 4 and the support plate 21 when moving downward, and preventing the impact force from causing damage to the mechanism parts.

[0045] The calibration method of the system is as follows:

[0046] Step (1): first, the slide table 3 is driven downward by the first telescopic assembly 23 to move the displacement detection device 7 and the pressure detection device 8 to the position to be tested;

[0047] Step (2): measuring and recording the downward pressure and initial stroke of the metal part 9 under test;

[0048] Step (3): clamping the metal part 9 by the cutter head of the rolling mechanism 5, and adjusting different clamping forces as needed;

[0049] Step (4): driving the rolling mechanism 5 to spirally move downward via the lifting and rotating mechanism 6 to perform stroke rolling on the metal part 9;

[0050] Step (5): monitoring the data of the displacement detection device 7 and the pressure detection device 8, and adjusting the stroke and rolling force of the rolling mechanism 5 in real time according to the data;

[0051] Step (6): adjusting the clamping force of the rolling mechanism 5 on the metal part 9 to ensure the stability of the rolling process;

[0052] Step (7): Repeat step (3) until the stroke rolling of the metal part 9 reaches the predetermined accuracy requirement.

[0053] Embodiment 2

[0054] On the basis of the first embodiment, the present invention further proposes a structure of a rolling mechanism 5 .

[0055] like Figure 1 , Figure 7 As shown, the rolling mechanism 5 includes a base plate 55 and a second telescopic component 58. The base plate 55 is connected to the output end of the lifting and rotating mechanism 6. A first slider 56 and a second slider 57 are arranged opposite to each other above the base plate 55. Both sliders are slidably connected to the base plate 55 through an existing slide rail component, and both ends of the second telescopic component 58 are respectively connected to the first slider 56 and the second slider 57, that is, the fixed end of the second telescopic component 58 is connected to the first slider 56, and the output end is connected to the second slider 57, so as to ensure that the first slider 56 and the second slider 57 can be opened and closed synchronously.

[0056] A tool holder 51 is fixedly mounted on the first slider 56, and a roller 52 is rotatably mounted on the end of the tool holder 51. A wheel frame 53 is fixedly mounted on the second slider 57, and a roller 54 is rotatably mounted on the end of the wheel frame 53. One end of the metal part 9 can pass through the positioning hole 22 on the support plate 21 to the middle of the roller 52 and the roller 54.

[0057] The second telescopic assembly 58 adopts a cylinder, and the thrust outputted by the cylinder is controlled by an electrical proportional valve. Two second telescopic assemblies 58 are provided, symmetrically distributed on both sides of the tool holder 51 to ensure that the first slider 56 and the second slider 57 can be opened and closed stably.

[0058] As mentioned above, the hob 52 is rotatably mounted on the end of the tool holder 51, and the roller 54 is rotatably mounted on the end of the wheel frame 53. Because the tool holder 51 and the wheel frame 53 are fixedly connected to the first slider 56 and the second slider 57 respectively, the hob 52 and the roller 54 are arranged opposite to each other and can be synchronously moved horizontally toward the axial position of the metal part 9 until the metal part 9 is clamped, and the clamping force can be controlled by an electrical proportional valve.

[0059] Furthermore, one hob 52 is provided, and two rollers 54 are provided, and the hob 52 and the rollers 54 are distributed in a herringbone shape so as to better clamp the metal piece 9 .

[0060] Embodiment 3

[0061] On the basis of the first and second embodiments, the present invention further proposes a lifting and rotating mechanism 6 for driving the rolling mechanism 5 to rotate and lift.

[0062] like Figure 1 , Figure 5-Figure 6 As shown, the lifting and rotating mechanism 6 includes a bracket 61 fixedly connected to the frame 1, a nut sleeve 62 is rotatably installed inside the bracket 61, a screw rod 63 is screwed through the inside of the nut sleeve 62, the upper end of the screw rod 63 is connected to a rotatable push rod 64, and the upper end of the push rod 64 is fixedly connected to the bottom plate 55.

[0063] With the support of the bracket 61, the driving nut sleeve 62 rotates, which can make the screw rod 63 screwed through it move along the axial direction, and the screw rod 63 is connected to the push rod 64, and the push rod 64 is fixedly connected to the bottom plate 55, thereby achieving the purpose of driving the rolling mechanism 5 to rise and fall; in addition, the push rod 64 can rotate around its own axis, which can achieve the purpose of driving the rolling mechanism 5 to rotate; therefore, under the joint action of the screw rod 63 and the push rod 64, the rotation and lifting of the rolling mechanism 5 can be achieved at the same time.

[0064] Among them, the screw rod 63 here preferably adopts a planetary ball screw, which is a mechanism that converts rotational motion into linear motion, that is, the rolling element between the nut sleeve 62 and the screw rod 63 is a threaded roller. The numerous contact lines make the planetary roller screw have a very strong load-bearing capacity to meet the support requirements of the rolling mechanism 5 here.

[0065] As mentioned above, the outer part of the push rod 64 is sleeved with a sleeve 65 , the outer side of the sleeve 65 is fixedly connected with a support plate 66 , and the support plate 66 is slidably connected to the frame 1 .

[0066] The push rod 64 can rotate relative to the sleeve 65, and the sleeve 65 can move up and down with the support plate 66. Based on this, the lifting and rotating of the push rod 64 can be ensured to be stable at the same time; and the support plate 66 and the frame 1 are slidably connected through the existing slide rail assembly.

[0067] In addition, a rotating shaft 67 for driving the nut sleeve 62 and the push rod 64 to rotate is rotatably installed on one side of the frame 1, and the rotating shaft 67 is connected to the nut sleeve 62 and the push rod 64 through a first transmission assembly 68 and a second transmission assembly 69 respectively.

[0068] The rotating shaft 67 is rotatably mounted on one side of the frame 1 and is driven to rotate by a servo motor. Under the rotation drive of the rotating shaft 67, the nut sleeve 62 can be driven to rotate through the first transmission assembly 68, and the push rod 64 can be driven to rotate through the second transmission assembly 69.

[0069] Furthermore, both the first transmission assembly 68 and the second transmission assembly 69 use a belt drive structure to achieve power transmission. The structures of the two are the same, and both include a driving pulley, a driven pulley and a synchronous belt. The two ends of the synchronous belt can be respectively mounted on the circumferential surfaces of the driving pulley and the driven pulley. The driving pulley is driven to rotate by the rotating shaft 67, and the synchronous belt transmits the torque to the driven pulley to drive the corresponding components to rotate.

[0070] Specifically, the two driving pulleys are fixedly mounted on the rotating shaft 67, the two driven pulleys are fixedly mounted on the nut sleeve 62 and the push rod 64, and the corresponding synchronous belts are installed between the corresponding pulleys to achieve torque transmission. The nut sleeve 62 and the push rod 64 are driven by the same rotating shaft 67 through the first transmission assembly 68 and the second transmission assembly 69, that is, the nut sleeve 62 and the push rod 64 can rotate synchronously, which can not only simplify the structure of the lifting and rotating mechanism 6, so that it occupies a smaller space, but also ensure that the rotation angle of the rolling mechanism 5 and the lifting height have a certain linear relationship, which is convenient for controlling the rolling stroke.

[0071] The support plate 66 is provided with a avoidance hole for the synchronous belt to pass through, and the lifting stroke of the rolling mechanism 5 is within a controllable range to ensure that the synchronous belt of the second transmission assembly 69 located above can work normally even if it is slightly twisted.

[0072] In summary, the purpose of the utility model is to provide a metal stroke rolling calibration system, which can accurately measure and adjust the stroke rolling of metal materials to improve the overall accuracy and reliability of the equipment.

[0073] In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present utility model. In addition, the terms "first", "second", etc. are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, features defined as "first", "second", etc. may explicitly or implicitly include one or more of the features. In the description of the present utility model, unless otherwise specified, "multiple" means two or more.

[0074] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood by specific circumstances.

[0075] The above is based on the ideal embodiment of the utility model. Through the above description, relevant personnel can make various changes and modifications without deviating from the technical concept of the utility model. The technical scope of this utility model is not limited to the content in the specification, and the technical scope must be determined according to the scope of the claims.

Claims

1. A metal stroke rolling calibration system, characterized in that: It comprises a frame (1), a support plate (21) for placing a metal piece (9) is arranged above the frame (1), a lifting and lowering pressing head mechanism (4) is arranged above the support plate (21), a rolling mechanism (5) is arranged below the support plate (21), and a lifting and rotating mechanism (6) for driving the rolling mechanism (5) to lift and rotate is arranged inside the frame (1); The rolling mechanism (5) comprises a rolling cutter (52) and a roller (54) which are arranged relatively to each other and can synchronously move horizontally toward the axial position of the metal part (9); the pressing head mechanism (4) comprises a pressing head body (45) which can press against the top of the metal part (9); the pressing head mechanism (4) is also provided with a displacement detection device (7) and a pressure detection device (8) for measuring the displacement and pressure of the metal part (9); and one end of the metal part (9) can pass through the positioning hole (22) on the support plate (21) to the middle of the rolling cutter (52) and the roller (54).

2. The metal stroke rolling calibration system according to claim 1, characterized in that: A gantry (2) is fixedly mounted on the top of the frame (1), a sliding platform (3) capable of being raised and lowered is slidably mounted on the inner side of the gantry (2), the pressing head mechanism (4) is mounted on the sliding platform (3), and the support plate (21) is fixedly mounted on the inner side of the gantry (2).

3. The metal stroke rolling calibration system according to claim 2, characterized in that: A first telescopic assembly (23) is installed on the top of the gantry (2), and an output end of the first telescopic assembly (23) is connected to the slide table (3).

4. The metal stroke rolling calibration system according to claim 2, characterized in that: The pressing head mechanism (4) further comprises a housing (41) fixedly connected to the slide table (3), wherein a fixed block (42), an intermediate block (43) and a slidable pressing block (44) are arranged on the inner side of the housing (41) in order from top to bottom; One end of the pressing block (44) is connected to the pressing head body (45), and the other end can be pressed against the middle block (43); The pressure detection device (8) is arranged between the fixed block (42) and the intermediate block (43), the displacement detection device (7) is installed on the top of the fixed block (42), and the test rod (71) of the displacement detection device (7) passes through the fixed block (42), the pressure detection device (8) and the intermediate block (43) in sequence to be connected to the pressure block (44).

5. The metal stroke rolling calibration system according to claim 4, characterized in that: A guide plate (46) is provided on the outer sliding sleeve of the pressure head body (45), one side of the guide plate (46) is fixedly connected to a guide rod (47), one end of the guide rod (47) is movably inserted into the shell (41), and a spring (48) is provided on the guide rod (47) between the shell (41) and the guide plate (46).

6. The metal stroke rolling calibration system according to claim 1, characterized in that: The rolling mechanism (5) further comprises a bottom plate (55) and a second telescopic assembly (58), wherein the bottom plate (55) is connected to the output end of the lifting and rotating mechanism (6), and a first sliding block (56) and a second sliding block (57) are arranged opposite to each other above the bottom plate (55), both of which are slidably connected to the bottom plate (55), and two ends of the second telescopic assembly (58) are respectively connected to the first sliding block (56) and the second sliding block (57); A tool holder (51) is fixedly mounted on the first sliding block (56), the rolling cutter (52) is rotatably mounted on the end of the tool holder (51), and a wheel frame (53) is fixedly mounted on the second sliding block (57), the roller (54) is rotatably mounted on the end of the wheel frame (53).

7. The metal stroke rolling calibration system according to claim 6, characterized in that: One hob (52) is provided, and two rollers (54) are provided, and the hob (52) and the rollers (54) are distributed in a herringbone shape.

8. The metal stroke rolling calibration system according to claim 6, characterized in that: The lifting and rotating mechanism (6) comprises a bracket (61) fixedly connected to the frame (1), a nut sleeve (62) is rotatably mounted inside the bracket (61), a screw rod (63) is screwed through the inside of the nut sleeve (62), the upper end of the screw rod (63) is connected to a rotatable push rod (64), and the upper end of the push rod (64) is fixedly connected to the bottom plate (55).

9. The metal stroke rolling calibration system according to claim 8, characterized in that: A rotating shaft (67) for driving the nut sleeve (62) and the push rod (64) to rotate is rotatably mounted on one side of the frame (1), and the rotating shaft (67) is connected to the nut sleeve (62) and the push rod (64) via a first transmission assembly (68) and a second transmission assembly (69), respectively.

10. The metal stroke rolling calibration system according to claim 9, characterized in that: The outer portion of the push rod (64) is sleeved with a sleeve (65), the outer side of the sleeve (65) is fixedly connected to a support plate (66), and the support plate (66) is slidably connected to the frame (1).

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