Loosening and clamping mechanism and method for automatically adjusting main motion stroke of gear shaping machine

Abstract

The invention provides a loosening and clamping mechanism and method for automatically adjusting the main motion stroke of a gear shaping machine. The loosening and clamping mechanism comprises a supporting seat, a crank disc is fixedly installed on the outer end face of the supporting seat, an upper positioning plate is fixedly installed at the top end of the crank disc, and a lower positioning plate is fixedly installed at the bottom end of the crank disc; a stroke shaft is installed on the crank disc in a sliding fit mode through a conical surface, the stroke shaft and an adjusting screw rod are in threaded transmission fit, and the adjusting screw rod is rotationally installed between the upper positioning plate and the lower positioning plate. A T-shaped nut is installed in the stroke shaft in a sliding mode, the T-shaped nut is connected with a connecting rod in a matched mode, the connecting rod and the crank disc are limited through a spacer pad, the connecting rod is sleeved with a belleville spring, the outer end face of the belleville spring is limited and pressed through a spacer bush and an outer hexagonal nut which are installed on the connecting rod, and the tail end of the connecting rod stretches out of the supporting base.

Description

Technical Field

[0001] The invention belongs to the technical field of gear shaping machines, and in particular relates to a loosening and clamping mechanism and method for automatically adjusting the main motion stroke of a gear shaping machine. Background Art

[0002] See also Figure 8-10 , the traditional loosening and clamping of the main motion stroke adjustment of the gear shaping machine is to design the stroke shaft A into a T-shaped structure, and the crank plate A is designed into a T-slot. The stroke shaft A can move in the T-slot of the crank plate A. The loosening and clamping of the stroke shaft A are all completed by using a locking nut A or a hydraulic cylinder A on the stroke shaft A. The locking nut A needs to be manually operated, and it needs to be manually loosened and clamped each time. The adjustment is very troublesome, and the manual loosening and clamping force is different each time, and the stability is also unreliable; although the loosening and clamping by the hydraulic cylinder A can be completed automatically and the clamping force can be the same, the hydraulic cylinder A will rotate with the rotation of the crank plate A and the stroke shaft A. Since the stroke shaft A is eccentric on the crank plate A, the loosening and clamping mechanism of the hydraulic cylinder A further increases the eccentric force generated by the rotation of the mechanism, causing the entire rotary motion to vibrate, affecting the use effect of the entire mechanism, and at the same time, the oil inlet hose and the oil outlet hose of the hydraulic cylinder A will swing back and forth with the rotation of the stroke shaft A, which is easy to interfere with the surrounding parts and cause accidents. Summary of the invention

[0003] The purpose of the present invention is to provide a loosening and clamping mechanism and method for automatically adjusting the main motion stroke of a gear shaping machine, which utilizes the reaction force of a disc spring to pull a connecting rod and a T-nut, and the T-nut pulls the stroke shaft, so that the conical surface of the stroke shaft is tightly attached to the conical surface of a crank plate and clamped. When loosening, the piston rod of the hydraulic cylinder pushes the connecting rod to further compress the disc spring, and the connecting rod drives the T-nut to move rightward, and the T-nut disengages in the T-slot of the stroke shaft to loosen the stroke shaft. The entire loosening and clamping is very reliable and effective. At the same time, the entire mechanism is disengaged from the hydraulic cylinder when rotating, and the hydraulic cylinder does not move when the mechanism rotates. The weight of the hydraulic cylinder will not generate additional eccentric force on the rotation of the stroke shaft, and the entire rotation movement is more stable. The mechanism is novel in structure, safe and reliable, and easy to operate.

[0004] In order to realize the above-mentioned technical features, the purpose of the present invention is achieved as follows: a loosening and clamping mechanism for automatically adjusting the main motion stroke of a gear shaping machine comprises a supporting seat, a crank disk is fixedly mounted on the outer end face of the supporting seat, an upper positioning plate is fixedly mounted on the top end of the crank disk, a lower positioning plate is fixedly mounted on the bottom end of the crank disk, a stroke shaft is mounted on the crank disk through a conical sliding fit, the stroke shaft and the adjusting screw form a threaded transmission fit, and the adjusting screw is rotatably mounted between the upper positioning plate and the lower positioning plate; a T-nut is slidably mounted inside the stroke shaft, the T-nut is connected to the connecting rod, the connecting rod and the crank disk are limited by a spacer, a disc spring is mounted on the connecting rod, and the outer end face of the disc spring is limited and tightened by a spacer sleeve and an external hexagonal nut mounted on the connecting rod, and the tail end of the connecting rod extends out of the supporting seat.

[0005] A connecting rod mounting hole for mounting the connecting rod is processed inside the supporting seat.

[0006] The crank disk includes a crank disk body, a slide groove is processed in the middle part of the crank disk body, first conical surfaces are arranged on both sides of the slide groove, a plurality of first bolt holes are processed on the top and bottom end surfaces of the crank disk body respectively, an axial hole for passing a connecting rod is processed in the central part of the crank disk body, a second bolt hole is arranged on the periphery of the axial hole, symmetrically arranged stepped bolt holes are processed on both sides of the crank disk body; a positioning boss is arranged on the back of the crank disk body.

[0007] The crank plate is fixed to the outer end surface of the support seat by a first bolt passing through the stepped bolt hole.

[0008] The upper positioning plate is processed with a plurality of third bolt holes, the positions where the third bolt holes are located are fixedly connected to the crank plate through third bolts, and the upper positioning plate is processed with an upper bearing hole for installing an adjusting screw.

[0009] The lower positioning plate is processed with a plurality of fourth bolt holes, and the fourth bolt holes are fixedly connected to the crank plate through second bolts. The lower positioning plate is processed with a bearing seat for installing an adjusting screw, and the central part of the bearing seat is processed with a lower bearing hole.

[0010] The two ends of the adjusting screw are installed between the upper bearing hole and the lower bearing hole through a needle roller and thrust roller combined bearing and a locking nut.

[0011] There is a certain axial gap B between the connecting rod and the spacer, so that after the disc spring is compressed, the connecting rod can move axially to loosen the lock between the T-nut and the stroke shaft.

[0012] The stroke shaft includes a stroke shaft seat, a main shaft is fixed to the front center of the stroke shaft seat, a rectangular slide is processed on the back of the stroke shaft seat, a T-slot for matching with the T-nut is processed at the center of the rectangular slide, a threaded hole is processed through the interior of the stroke shaft seat, the threaded hole and the adjusting screw form a threaded transmission, and first conical surfaces are arranged on both sides of the stroke shaft seat.

[0013] A loosening and clamping method for automatically adjusting the main motion stroke of a gear shaping machine comprises the following steps: Step 1, installation of upper and lower positioning plates: The upper positioning plate and the lower positioning plate are fixedly connected to the crank plate respectively; Step 2, installation of travel shaft: Put the stroke shaft into the crank plate and fit the conical surface. Install the needle roller and thrust roller combination bearing on the adjusting screw. Install them together into the upper positioning plate and rotate the adjusting screw into the threaded hole of the stroke shaft. Pass through the lower positioning plate and tighten the adjusting screw with a locking nut, so that the rotating adjusting screw can drive the stroke shaft to move along the conical surface of the crank plate. Step 3, installation of T-nuts: Install the T-nut into the T-slot of the stroke shaft; Step 4, installation of connecting rod: Rotate the connecting rod into the T-nut thread, and install the spacer, disc spring, spacer sleeve, and external hexagonal nut in sequence. Compress the disc spring by rotating the external hexagonal nut to drive the connecting rod to pull the T-nut. The T-nut tightens the stroke shaft and fits the crank disk. At this time, the stroke shaft is clamped. During the assembly process, it is necessary to control the gap B between the connecting rod and the spacer, which is also the maximum distance that the connecting rod and the T-nut move to the right, to ensure that the T-nut does not interfere in the T-slot of the stroke shaft when the stroke shaft is loosened. Step 5, install the overall structure in step 4 into the support seat and connect it with bolts; Step 6, adjustment of the travel axis: Fix the hydraulic cylinder to a non-rotating part, adjust the distance between the hydraulic cylinder piston rod and the connecting rod, push the connecting rod to the right by the piston rod to loosen the stroke shaft, conversely, the piston rod disengages from the connecting rod to the left, and the connecting rod moves to the left through the disc spring, driving the T-nut to tighten the stroke shaft.

[0014] The present invention has the following beneficial effects: The present invention is applicable to a loosening and clamping mechanism and method for automatically adjusting the main motion stroke of a gear shaping machine. The main motion stroke length of the gear shaping machine is adjusted according to different tooth widths of the gears when the gear shaping machine is processing gears. According to the requirements of gear shaping, the main motion stroke length of the gear shaping machine should be greater than the width of the processed gear by a certain amount. When the entire mechanism rotates, the stroke shaft is in an eccentric position. The eccentricity is H, and the stroke length is 2H. The stroke shaft and the crank disk are matched through a conical surface. The adjusting screw is rotated, and the stroke shaft can move in the conical surface groove of the crank disk, thereby changing the size of the eccentricity H, that is, changing the size of the stroke length. In the normal clamping state, the disc spring is compressed by rotating the external hexagonal nut, and the reaction force of the disc spring pulls the T-nut, and the T-nut pulls the stroke shaft, so that the conical surface of the stroke shaft is tightly attached to the conical surface of the crank disk and clamped, wherein the T-nut can move in the T-slot of the stroke shaft when loosened; when the stroke needs to be adjusted, the piston rod of the hydraulic cylinder pushes the connecting rod to further compress the disc spring, and the connecting rod The T-nut is driven to move to the right and disengaged from the T-slot of the stroke shaft. At this time, although the conical surface of the stroke shaft fits the conical surface of the crank disk, there is no external tension. The adjusting screw is rotated and the adjusting screw is connected to the stroke shaft through a thread, driving the stroke shaft to move along the conical surface of the crank disk. The eccentricity H of the stroke shaft is adjusted according to the required stroke length. Since the stroke shaft is subjected to strong impact force during gear shaping, the disc spring is compressed by rotating the external hexagonal nut to obtain a stable and reliable clamping force for the stroke shaft. At the same time, when the stroke length needs to be adjusted, the stroke shaft can be automatically loosened by the hydraulic cylinder, which has a high degree of automation and is quick and convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0016] Figure 1 It is the main sectional view of the present invention.

[0017] Figure 2 The present invention Figure 1 Medium AA view.

[0018] Figure 3 It is a three-dimensional diagram of the crank disk of the present invention from the first perspective.

[0019] Figure 4 It is a three-dimensional diagram of the crank disk of the present invention from a second viewing angle.

[0020] Figure 5 It is a three-dimensional diagram of the upper positioning plate of the present invention.

[0021] Figure 6 It is a three-dimensional diagram of the lower positioning plate of the present invention.

[0022] Figure 7 It is a three-dimensional diagram of the stroke axis of the present invention.

[0023] Figure 8 This is the existing stroke shaft installation structure diagram.

[0024] Fig. 9 It is the structural diagram of the existing crank plate A.

[0025] Fig.10 This is the structural diagram of the existing travel axis A.

[0026] In the figure: hydraulic cylinder 1, outer hexagonal nut 2, spacer 3, third bolt 4, spacer 5, connecting rod 6, adjusting screw 7, needle roller and thrust roller combination bearing 8, upper positioning plate 9, first bolt 10, stroke shaft 11, T-nut 12, lower positioning plate 13, second bolt 14, locking nut 15, support seat 16, disc spring 17, crank plate 18; A third bolt hole 901 and a bearing hole 902; Fourth bolt hole 1301, bearing seat 1302, lower bearing hole 1303; Rectangular slide 1101, T-slot 1102, threaded hole 1103, first cone surface 1104, main shaft 1105, travel shaft seat 1106; Connecting rod mounting hole 1601; Crank plate body 1801 , first conical surface 1802 , stepped bolt hole 1803 , first bolt hole 1804 , slide groove 1805 , second bolt hole 1806 , shaft hole 1807 , and positioning boss 1808 . DETAILED DESCRIPTION

[0027] The embodiments of the present invention are further described below in conjunction with the accompanying drawings.

[0028] Embodiment 1: See also Figure 1-7A loosening and clamping mechanism for automatically adjusting the main motion stroke of a gear shaping machine comprises a support seat 16, a crank plate 18 is fixedly mounted on the outer end surface of the support seat 16, an upper positioning plate 9 is fixedly mounted on the top of the crank plate 18, a lower positioning plate 13 is fixedly mounted on the bottom end of the crank plate 18, a stroke shaft 11 is mounted on the crank plate 18 through a conical sliding fit, the stroke shaft 11 and the adjusting screw 7 form a threaded transmission fit, and the adjusting screw 7 is rotatably mounted between the upper positioning plate 9 and the lower positioning plate 13; a T-nut 12 is slidably mounted inside the stroke shaft 11, the T-nut 12 is connected to the connecting rod 6, the connecting rod 6 and the crank plate 18 are limited by a spacer 5, a disc spring 17 is mounted on the connecting rod 6, and the outer end surface of the disc spring 17 is limited and pressed by a spacer sleeve 3 and an outer hexagonal nut 2 installed on the connecting rod 6, and the tail end of the connecting rod 6 extends out of the support seat 16. By adopting the above mechanism, the reaction force of the disc spring is used to pull the connecting rod and the T-nut, and the T-nut pulls the stroke shaft, so that the conical surface of the stroke shaft is tightly attached to the conical surface of the crank plate and clamped. When loosening, the piston rod of the hydraulic cylinder pushes the connecting rod to further compress the disc spring, and the connecting rod drives the T-nut to move to the right. The T-nut is disengaged in the T-slot of the stroke shaft to loosen the stroke shaft. The entire loosening and clamping is very reliable and effective. At the same time, the entire mechanism is disengaged from the hydraulic cylinder when rotating. The hydraulic cylinder does not move when the mechanism rotates. The weight of the hydraulic cylinder will not generate additional eccentric force on the rotation of the stroke shaft, and the entire rotation movement is more stable. The mechanism is novel in structure, safe and reliable, and easy to operate.

[0029] Furthermore, a connecting rod mounting hole 1601 for mounting the connecting rod 6 is processed inside the support seat 16. The connecting rod mounting hole 1601 facilitates the installation of the connecting rod 6 and the components thereon.

[0030] Further, the crank disk 18 includes a crank disk body 1801, a slide groove 1805 is processed in the middle part of the crank disk body 1801, first cone surfaces 1802 are arranged on both sides of the slide groove 1805, a plurality of first bolt holes 1804 are processed on the top and bottom end surfaces of the crank disk body 1801, an axial hole 1807 for passing the connecting rod 6 is processed in the central part of the crank disk body 1801, a second bolt hole 1806 is arranged on the periphery of the axial hole 1807, and symmetrically arranged stepped bolt holes 1803 are processed on both sides of the crank disk body 1801; and a positioning boss 1808 is arranged on the back of the crank disk body 1801. The crank disk 18 can be used for sliding installation of the stroke shaft 11. The first cone surface 1802 is convenient for subsequent cooperation with the stroke shaft 11, thereby realizing reliable locking and fixing of the stroke shaft 11.

[0031] Furthermore, the crank plate 18 is fixed to the outer end surface of the support seat 16 by the first bolt 10 passing through the stepped bolt hole 1803. The crank plate 18 is reliably fixed and installed by the above-mentioned fixing and installation method.

[0032] Furthermore, a plurality of third bolt holes 901 are processed on the upper positioning plate 9, and the positions of the third bolt holes 901 are fixedly connected to the crank plate 18 through the third bolts 4, and an upper bearing hole 902 for installing the adjusting screw 7 is processed on the upper positioning plate 9. The upper positioning plate 9 can be used for subsequent rotational installation of the adjusting screw 7.

[0033] Furthermore, the lower positioning plate 13 is processed with a plurality of fourth bolt holes 1301, and the fourth bolt holes 1301 are fixedly connected to the crank plate 18 through the second bolts 14. The lower positioning plate 13 is processed with a bearing seat 1302 for installing the adjusting screw 7, and the central part of the bearing seat 1302 is processed with a lower bearing hole 1303. The lower positioning plate 13 can be used for subsequent rotational installation of the adjusting screw 7.

[0034] Furthermore, both ends of the adjusting screw 7 are installed between the upper bearing hole 902 and the lower bearing hole 1303 through the needle roller and thrust roller combined bearing 8 and the locking nut 15. The needle roller and thrust roller combined bearing 8 ensures that the adjusting screw 7 can withstand a certain axial force while rotating.

[0035] Furthermore, there is a certain axial gap B between the connecting rod 6 and the spacer 5, so that the connecting rod 6 can move axially to loosen the lock between the T-nut 12 and the stroke shaft 11 after the disc spring 17 is compressed. By controlling the gap B between the connecting rod 6 and the spacer 5, which is also the maximum distance for the connecting rod 6 and the T-nut 12 to move to the right, it is ensured that the T-nut 12 does not interfere in the T-slot of the stroke shaft when the stroke shaft 11 is loosened.

[0036] Furthermore, the stroke shaft 11 includes a stroke shaft seat 1106, a main shaft 1105 is fixed to the front center of the stroke shaft seat 1106, a rectangular slide 1101 is processed on the back of the stroke shaft seat 1106, a T-slot 1102 for matching with the T-nut 12 is processed in the center of the rectangular slide 1101, a threaded hole 1103 is processed through the inside of the stroke shaft seat 1106, the threaded hole 1103 and the adjusting screw 7 form a threaded transmission match, and the first cone surface 1104 is provided on both sides of the stroke shaft seat 1106. The stroke shaft 11 described above can subsequently match with the adjusting screw 7, thereby realizing the lifting and lowering adjustment of the stroke shaft 11, and the stroke shaft 11 is locked on the crank plate 18 through the T-nut 12 and connected with the connecting rod 6.

[0037] Embodiment 2: A loosening and clamping method for automatically adjusting the main motion stroke of a gear shaping machine comprises the following steps: Step 1, installation of upper positioning plate 9 and lower positioning plate 13: The upper positioning plate 9 and the lower positioning plate 13 are fixedly connected to the crank plate 18 respectively; Step 2, installation of travel shaft 11: Put the stroke shaft 11 into the crank plate 18 and fit the conical surface. Install the needle roller and thrust roller combination bearing 8 on the adjusting screw 7, install them together into the upper positioning plate 9, and rotate the adjusting screw 7 into the threaded hole of the stroke shaft 11, pass through the lower positioning plate 13, and tighten the adjusting screw 7 with the locking nut 15, so that the rotating adjusting screw 7 can drive the stroke shaft 11 to move along the conical surface of the crank plate 18; Step 3, installation of T-nut 12: Install the T-nut 12 into the T-slot of the stroke shaft 11; Step 4, installation of connecting rod 6: Rotate the connecting rod 6 into the thread of the T-nut 12, and install the spacer 5, disc spring 17, spacer sleeve 3, and external hexagonal nut 2 in sequence. By rotating the external hexagonal nut 2 to compress the disc spring 17, the connecting rod 6 is driven to pull the T-nut 12. The T-nut 12 tightens the stroke shaft 11 and fits it with the crank disk 18. At this time, the stroke shaft 18 is clamped. During the assembly process, it is necessary to control the gap B between the connecting rod 6 and the spacer 5, which is also the maximum distance that the connecting rod 6 and the T-nut 12 move to the right, to ensure that the T-nut 12 does not interfere in the T-slot of the stroke shaft when the stroke shaft 11 is loosened. Step 5, install the overall structure in step 4 into the support seat 16 and connect it with bolts; Step 6, adjustment of the travel axis 11: Fix the hydraulic cylinder 1 to a non-rotating part, adjust the distance between the piston rod of the hydraulic cylinder 1 and the connecting rod 6, push the connecting rod 6 to the right by the piston rod to loosen the stroke shaft 11, conversely, the piston rod disengages from the connecting rod 6 to the left, and the connecting rod 6 moves to the left through the disc spring 17, driving the T-nut 12 to tighten the stroke shaft 11.

Claims

1. A loosening and clamping mechanism for automatic adjustment of the main motion stroke of a gear shaping machine, characterized in that: The invention comprises a support seat (16), the outer end surface of the support seat (16) is fixedly mounted with a crank plate (18), the top end of the crank plate (18) is fixedly mounted with an upper positioning plate (9), the bottom end of the crank plate (18) is fixedly mounted with a lower positioning plate (13), a stroke shaft (11) is mounted on the crank plate (18) through a conical surface sliding fit, the stroke shaft (11) and the adjusting screw (7) form a threaded transmission fit, and the adjusting screw (7) is rotatably mounted on the upper positioning plate (9) and the lower positioning plate (13). 3); a T-nut (12) is slidably mounted inside the stroke shaft (11), the T-nut (12) is connected to the connecting rod (6), the connecting rod (6) and the crank plate (18) are limited by a spacer (5), a disc spring (17) is mounted on the connecting rod (6), the outer end surface of the disc spring (17) is limited and tightened by a spacer (3) and an outer hexagonal nut (2) mounted on the connecting rod (6), and the tail end of the connecting rod (6) extends out of the support seat (16).

2. A loosening and clamping mechanism for automatic adjustment of the main motion stroke of a gear shaping machine according to claim 1, characterized in that: A connecting rod mounting hole (1601) for mounting a connecting rod (6) is machined inside the support seat (16).

3. A loosening and clamping mechanism for automatic adjustment of the main motion stroke of a gear shaping machine according to claim 2, characterized in that: The crank disk (18) comprises a crank disk body (1801), a slide groove (1805) is machined in the middle of the crank disk body (1801), first conical surfaces (1802) are arranged on both sides of the slide groove (1805), a plurality of first bolt holes (1804) are machined on the top and bottom end surfaces of the crank disk body (1801), an axial hole (1807) for passing a connecting rod (6) is machined in the center of the crank disk body (1801), a second bolt hole (1806) is arranged on the periphery of the axial hole (1807), and symmetrically arranged stepped bolt holes (1803) are machined on both sides of the crank disk body (1801); and a positioning boss (1808) is arranged on the back of the crank disk body (1801).

4. A loosening and clamping mechanism for automatic adjustment of the main motion stroke of a gear shaping machine according to claim 3, characterized in that: The crank plate (18) is fixed to the outer end surface of the support seat (16) by a first bolt (10) passing through the stepped bolt hole (1803).

5. The loosening and clamping mechanism for automatic adjustment of the main motion stroke of a gear shaping machine according to claim 3, characterized in that: The upper positioning plate (9) is machined with a plurality of third bolt holes (901), the third bolt holes (901) being fixedly connected to the crank plate (18) via third bolts (4), and the upper positioning plate (9) is machined with an upper bearing hole (902) for mounting an adjusting screw (7).

6. A loosening and clamping mechanism for automatic adjustment of the main motion stroke of a gear shaping machine according to claim 5, characterized in that: The lower positioning plate (13) is machined with a plurality of fourth bolt holes (1301), the fourth bolt holes (1301) being fixedly connected to the crank plate (18) via second bolts (14), the lower positioning plate (13) is machined with a bearing seat (1302) for mounting an adjusting screw (7), and the central portion of the bearing seat (1302) is machined with a lower bearing hole (1303).

7. A loosening and clamping mechanism for automatic adjustment of the main motion stroke of a gear shaping machine according to claim 6, characterized in that: Both ends of the adjusting screw (7) are installed between the upper bearing hole (902) and the lower bearing hole (1303) via a needle roller and thrust roller combined bearing (8) and a locking nut (15).

8. The loosening and clamping mechanism for automatic adjustment of the main motion stroke of a gear shaping machine according to claim 5, characterized in that: There is a certain axial gap B between the connecting rod (6) and the spacer (5), so that after the disc spring (17) is compressed, the connecting rod (6) can move axially to loosen the lock between the T-nut (12) and the stroke shaft (11).

9. The loosening and clamping mechanism for automatic adjustment of the main motion stroke of a gear shaping machine according to claim 5, characterized in that: The stroke shaft (11) comprises a stroke shaft seat (1106), a main shaft (1105) is fixed at the center of the front side of the stroke shaft seat (1106), a rectangular slide (1101) is processed on the back side of the stroke shaft seat (1106), a T-slot (1102) for matching with the T-nut (12) is processed at the center of the rectangular slide (1101), a threaded hole (1103) is processed through the interior of the stroke shaft seat (1106), the threaded hole (1103) and the adjusting screw (7) form a threaded transmission match, and first conical surfaces (1104) are arranged on both sides of the stroke shaft seat (1106).

10. A loosening and clamping method for automatic adjustment of the main motion stroke of a gear shaping machine, characterized in that: The loosening and clamping method is implemented by using a loosening and clamping mechanism for automatic adjustment of the main motion stroke of a gear shaping machine as described in any one of claims 5 to 9, comprising the following steps: Step 1, installation of the upper positioning plate (9) and the lower positioning plate (13): The upper positioning plate (9) and the lower positioning plate (13) are respectively fixedly connected to the crank plate (18); Step 2, installation of travel shaft (11): Place the stroke shaft (11) into the crank plate (18) and fit the conical surface, install the needle roller and thrust roller combination bearing (8) on the adjusting screw (7), install them together on the upper positioning plate (9), and rotate the adjusting screw (7) into the threaded hole of the stroke shaft (11), pass through the lower positioning plate (13), and tighten the adjusting screw (7) with the locking nut (15), so that the rotating adjusting screw (7) can drive the stroke shaft (11) to move along the conical surface of the crank plate (18); Step 3, Installation of T-nuts (12): Install the T-nut (12) into the T-slot of the stroke shaft (11); Step 4, installation of connecting rod (6): Rotate the connecting rod (6) into the thread of the T-nut (12), and install the spacer (5), disc spring (17), spacer sleeve (3), and external hexagonal nut (2) in sequence. By rotating the external hexagonal nut (2), the disc spring (17) is compressed, and the connecting rod (6) is driven to pull the T-nut (12). The T-nut (12) tightens the stroke shaft (11) and fits it with the crank plate (18). At this time, the stroke shaft (18) is clamped. During the assembly process, it is necessary to control the gap B between the connecting rod (6) and the spacer (5), which is also the maximum distance that the connecting rod (6) and the T-nut (12) move to the right, to ensure that the T-nut (12) does not interfere in the T-slot of the stroke shaft when the stroke shaft (11) is loosened. Step 5, install the overall structure in step 4 into the support seat (16) and connect it with bolts; Step 6, adjustment of the travel axis (11): The hydraulic cylinder (1) is fixed to a non-rotating component, and the distance between the piston rod of the hydraulic cylinder (1) and the connecting rod (6) is adjusted. The piston rod pushes the connecting rod (6) to the right to loosen the stroke shaft (11). Conversely, the piston rod is disengaged from the connecting rod (6) to the left, and the connecting rod (6) is moved to the left by the disc spring (17), driving the T-nut (12) to tighten the stroke shaft (11).

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