Thread roller transmission device for piston rod production and machining

Abstract

The utility model discloses a thread rolling machine transmission device for piston rod production and processing, and relates to the field of piston rod thread rolling processing, the thread rolling machine transmission device comprises a rack and two hob heads, the outer part and the inner part of the rack are provided with adjusting mechanisms, the adjusting mechanisms are used for adjusting the distance between the two hob heads, and the adjusting mechanisms are used for adjusting the distance between the two hob heads. The adjusting mechanism comprises a rotating assembly and a moving assembly, the rotating assembly is used for driving the two hob heads to rotate synchronously, and the moving assembly is used for driving the two hob heads to move close to or away from each other. The adjusting mechanism is arranged, the journal sticking motor drives the two hob heads to move close to or away from each other, the synchronous belt in the stretchable state prevents rotation of the hob heads from being hindered, the distance between the two hob heads can be adjusted conveniently, the novel structure can be suitable for piston rods with different diameter sizes, and the practicability is high. The practicability of the device is effectively improved.

Description

Technical Field

[0001] The utility model relates to the field of piston rod thread rolling processing, in particular to a thread rolling machine transmission device for piston rod production and processing. Background Art

[0002] The thread rolling machine is a multifunctional cold extrusion forming machine. It can perform thread, straight and diagonal rolling on the workpiece in the cold state within its rolling force range. It can also roll straight teeth, helical teeth and helical spline gears, straighten, reduce diameter, roll burnishing and various forming rolling.

[0003] When the existing thread rolling machine transmission device processes the piston rod, the motor drives the two rolling cutter heads to rotate synchronously, and the piston rod is placed in the gap between the two rolling cutter heads. The two synchronously rotating rolling cutter heads then roll the piston rod. However, the spacing between the two rolling cutter heads is fixed. When it is necessary to process a piston rod with a larger or smaller diameter, the corresponding thread rolling machine transmission device needs to be replaced. The spacing between the two rolling cutter heads cannot be adjusted according to the diameter of the piston rod. This device is relatively limited in use. Utility Model Content

[0004] The purpose of the utility model is to provide a thread rolling machine transmission device for producing and processing piston rods in order to solve the problem that the distance between two hob heads cannot be adjusted according to the diameter of the piston rod.

[0005] To achieve the above-mentioned object, the present invention provides the following technical solution: a thread rolling machine transmission device for piston rod production and processing, comprising a frame and two rolling cutter heads, wherein adjustment mechanisms are installed on the outside and inside of the frame, and the adjustment mechanisms are used to adjust the distance between the two rolling cutter heads;

[0006] The adjustment mechanism includes a rotating component and a moving component;

[0007] The rotating assembly is used to drive the two hob cutter heads to rotate synchronously;

[0008] The moving assembly is used to drive the two hob cutter heads to move closer to or away from each other.

[0009] As a further solution of the present invention: the rotating assembly includes a first synchronous wheel, a second synchronous wheel, a synchronous belt, a movable frame, a servo motor, a "T"-shaped slide, a "T"-shaped slider, two rollers, a movable groove, a guide groove, a guide rod, and a spring;

[0010] The movable groove is opened at the end surface of the frame and completely passes through it, the roller is rotatably and slidably connected to the inner wall of the movable groove, the first synchronous wheel is assembled on the outer wall of one of the rollers, and the second synchronous wheel is assembled on the outer wall of the other roller, the first synchronous wheel and the second synchronous wheel are connected by the synchronous belt transmission, and the outer sides of the first synchronous wheel and the second synchronous wheel are engaged with the tooth grooves on the inner side of the synchronous belt;

[0011] The guide groove is formed on one end surface of the frame, one end of the guide rod is slidably connected to the inside of the guide groove, the spring is installed in the inside of the guide groove, and one end of the spring is fixedly connected to the guide rod;

[0012] The "T"-shaped slide groove is opened on the other end face of the frame, the "T"-shaped slider is slidably connected to the inside of the "T"-shaped slide groove, the movable frame is fixedly connected to the end of the "T"-shaped slider, the servo motor is installed on the inner end face of the movable frame, and the output shaft end of the servo motor is connected to one of the second synchronous wheels.

[0013] As a further solution of the present invention: the two guide grooves are arranged alternately up and down, and the other end of the guide rod is in contact with the surface of the synchronous belt.

[0014] As a further solution of the present invention: the cutter head is installed at the end of the roller, and the two rollers in a synchronously rotating state are used to drive the two cutter heads to rotate synchronously respectively.

[0015] As a further solution of the present invention: the moving assembly includes a shaft-holding motor, a bidirectional screw rod and two connecting rings;

[0016] The shaft-holding motor is installed on the other end face of the frame, the connecting ring is rotatably connected to the outer wall of the rotating roller, the bidirectional screw is connected to the output shaft end of the shaft-holding motor, and the bidirectional screw is connected to the protrusions of the two connecting rings through a screw seat.

[0017] As a further solution of the present invention: the two connecting rings are symmetrically arranged, the inner cavity of one connecting ring is provided with an internal thread engaged with the positive thread of the bidirectional screw rod, and the inner cavity of the other connecting ring is provided with an internal thread engaged with the reverse thread of the bidirectional screw rod.

[0018] Compared with the prior art, the beneficial effects of the present invention are:

[0019] By setting up an adjustment mechanism, the shaft-holding motor drives the two hob heads to move closer or farther away, and the stretchable synchronous belt avoids obstruction to the rotation of the hob heads, thereby facilitating the adjustment of the distance between the two hob heads. This new structure is suitable for piston rods of different diameters, effectively improving the practicality of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a schematic diagram of the main structure of the utility model;

[0021] Figure 2 This is a schematic diagram of the structure of the adjustment mechanism of the utility model;

[0022] Figure 3 This is a structural schematic diagram of the adjustment mechanism of the utility model from another perspective.

[0023] In the figure: 1. Frame; 2. Hob head; 3. Adjustment mechanism; 301. Roller; 302. Moving groove; 303. First synchronous wheel; 304. Second synchronous wheel; 305. Synchronous belt; 306. Guide groove; 307. Guide rod; 308. Moving frame; 309. Servo motor; 3010. "T"-shaped slide; 3011. "T"-shaped slider; 3012. Shaft-holding motor; 3013. Connecting ring; 3014. Bidirectional screw rod; 3015. Spring. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0025] See also Figures 1 to 3 In an embodiment of the present invention, a thread rolling machine transmission device for producing and processing piston rods includes a frame 1 and two roller cutter heads 2. Adjustment mechanisms 3 are installed on the outside and inside of the frame 1. The adjustment mechanism 3 is used to adjust the distance between the two roller cutter heads 2.

[0026] The adjustment mechanism 3 includes a rotating component and a moving component;

[0027] The rotating assembly is used to drive the two hob cutter heads 2 to rotate synchronously;

[0028] The moving assembly is used to drive the two hob cutter heads 2 to move closer to or away from each other.

[0029] In this embodiment: when the distance between the two hob cutter heads 2 needs to be adjusted, the shaft-holding motor 3012 is powered on and operated, so that the output shaft of the shaft-holding motor 3012 in the powered state drives the bidirectional screw rod 3014 to rotate, and the bidirectional screw rod 3014 in the rotating state drives the two connecting rings 3013 to move, so that one connecting ring 3013 drives a roller 301 to move along the positive thread track of the screw rod 3014 to one end, and the other connecting ring 3013 drives the other roller 301 to move along the reverse thread track of the screw rod 3014 to the other end, and the two rollers 301 move horizontally inside the two moving grooves 302 respectively, and at the same time, one roller 301 in the moving state also drives the servo motor 309 to move to one end, and the servo motor 309 drives the moving frame 308 to move, so that the moving frame 308 drives the "T"-shaped slider 3011 along the track of the "T"-shaped slide groove 3010, and then the two rollers 301 respectively drive the two roller cutter heads 2 to move away from each other, and the two rollers 301 moving away from each other respectively drive the first synchronous wheel 303 and the second synchronous wheel 304 to move away from each other, so that the first synchronous wheel 303 and the second synchronous wheel 304 moving away from each other stretch the synchronous belt 305, and the stretched synchronous belt 305 applies force to the two guide rods 307, so that the two guide rods 307 move closer to each other along the track of the guide groove 306, thereby increasing the distance between the two roller cutter heads 2 moving away from each other, which is suitable for piston rods with larger diameters.

[0030] When the distance between the two hob cutter heads 2 is adjusted, the servo motor 309 is powered on and operated, so that the output shaft of the servo motor 309 in the powered state drives a roller 301 to rotate, and a rotating roller 301 drives the first synchronous wheel 303 to rotate. Because the outer sides of the first synchronous wheel 303 and the second synchronous wheel 304 are engaged with the tooth grooves on the inner side of the synchronous belt 305, the rotating first synchronous wheel 303 drives the second synchronous wheel 304 to rotate synchronously through the synchronous belt 305, and the two rollers 301 in the synchronously rotating state respectively drive the two hob cutter heads 2 to rotate synchronously, so that the two synchronously rotating hob cutter heads 2 perform thread rolling processing on the piston rod.

[0031] Please refer to Figure 3 The rotating assembly includes a first synchronous wheel 303, a second synchronous wheel 304, a synchronous belt 305, a movable frame 308, a servo motor 309, a T-shaped slide 3010, a T-shaped slider 3011, two rollers 301, a movable groove 302, a guide groove 306, a guide rod 307, and a spring 3015;

[0032] The movable groove 302 is formed on the end surface of the frame 1 and completely penetrates the frame 1. The roller 301 is rotatably and slidably connected to the inner wall of the movable groove 302. The first synchronous wheel 303 is mounted on the outer wall of one roller 301, and the second synchronous wheel 304 is mounted on the outer wall of the other roller 301. The first synchronous wheel 303 and the second synchronous wheel 304 are connected by a synchronous belt 305, and the outer sides of the first synchronous wheel 303 and the second synchronous wheel 304 are meshed with the tooth grooves on the inner side of the synchronous belt 305.

[0033] The guide groove 306 is formed on one end surface of the frame 1 , one end of the guide rod 307 is slidably connected to the inside of the guide groove 306 , and the spring 3015 is installed in the inside of the guide groove 306 , and one end of the spring 3015 is fixedly connected to the guide rod 307 ;

[0034] The "T"-shaped slide groove 3010 is opened on the other end face of the frame, the "T"-shaped slider 3011 is slidably connected to the inside of the "T"-shaped slide groove 3010, the movable frame 308 is fixedly connected to the end of the "T"-shaped slider 3011, the servo motor 309 is installed on the inner end face of the movable frame 308, and the output shaft end of the servo motor 309 is connected to a second synchronous wheel 304.

[0035] In this embodiment: the servo motor 309 is powered on and operated, so that the output shaft of the servo motor 309 in the powered state drives a roller 301 to rotate, and the rotating roller 301 drives the first synchronous wheel 303 to rotate. Because the outer sides of the first synchronous wheel 303 and the second synchronous wheel 304 are engaged with the tooth grooves on the inner side of the synchronous belt 305, the rotating first synchronous wheel 303 drives the second synchronous wheel 304 to rotate synchronously through the synchronous belt 305, and the two synchronously rotating rollers 301 respectively drive the two hob heads 2 to rotate synchronously, so that the two synchronously rotating hob heads 2 perform thread rolling processing on the piston rod.

[0036] Please refer to Figure 2 The two guide grooves 306 are arranged alternately up and down, and the other end of the guide rod 307 contacts the surface of the synchronous belt 305.

[0037] In this embodiment, the first synchronous wheel 303 and the second synchronous wheel 304 moving away from each other stretch the synchronous belt 305, and the stretched synchronous belt 305 applies force to the two guide rods 307, so that the two guide rods 307 move closer to each other along the trajectory of the guide groove 306.

[0038] Please refer to Figure 1 The cutter head 2 is installed at the end of the roller 301, and the two rollers 301 in the synchronous rotation state are used to drive the two cutter heads 2 to rotate synchronously.

[0039] In this embodiment, the first synchronous wheel 303 in a rotating state drives the second synchronous wheel 304 to rotate synchronously through the synchronous belt 305, and the two rollers 301 in a synchronously rotating state respectively drive the two hob heads 2 to rotate synchronously.

[0040] Please refer to Figure 3 The moving assembly includes a shaft-holding motor 3012, a bidirectional screw rod 3014 and two connecting rings 3013;

[0041] The shaft-holding motor 3012 is installed on the other end face of the frame 1, the connecting ring 3013 is rotatably connected to the outer wall of the roller 301, the bidirectional screw rod 3014 is connected to the output shaft end of the shaft-holding motor 3012, and the bidirectional screw rod 3014 is connected to the protrusions of the two connecting rings 3013 through the screw rod seat.

[0042] In this embodiment: the shaft-holding motor 3012 is powered on and operated, so that the output shaft of the shaft-holding motor 3012 in the powered state drives the bidirectional screw rod 3014 to rotate, and the bidirectional screw rod 3014 in the rotating state drives the two connecting rings 3013 to move, so that one connecting ring 3013 drives a roller 301 to move along the positive thread trajectory of the screw rod 3014 to one end, and the other connecting ring 3013 drives the other roller 301 to move along the reverse thread trajectory of the screw rod 3014 to the other end.

[0043] Please refer to Figure 3 The two connecting rings 3013 are symmetrically arranged. The inner cavity of one connecting ring 3013 is provided with an internal thread that engages with the positive thread of the bidirectional screw rod 3014, and the inner cavity of the other connecting ring 3013 is provided with an internal thread that engages with the reverse thread of the bidirectional screw rod 3014.

[0044] In this embodiment, one connecting ring 3013 drives one roller 301 to move along the positive thread track of the screw rod 3014 toward one end, and another connecting ring 3013 drives another roller 301 to move along the reverse thread track of the screw rod 3014 toward the other end, so that the two rollers 301 move away from each other.

[0045] The above is only a preferred specific implementation method of the present invention, but the protection scope of the present invention is not limited to this. Any technician familiar with the technical field within the technical scope disclosed by the present invention can make equivalent replacements or changes based on the technical solution and utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A thread rolling machine transmission device for piston rod production and processing, comprising a frame (1) and two roller heads (2), characterized in that: An adjustment mechanism (3) is installed outside and inside the frame (1), and the adjustment mechanism (3) is used to adjust the distance between the two hob cutter heads (2); The regulating mechanism (3) comprises a rotating component and a moving component; The rotating assembly is used to drive the two hob cutter heads (2) to rotate synchronously; The moving assembly is used to drive the two hob cutter heads (2) to move closer to or away from each other.

2. A thread rolling machine transmission device for piston rod production and processing according to claim 1, characterized in that: The rotating assembly includes a first synchronous wheel (303), a second synchronous wheel (304), a synchronous belt (305), a movable frame (308), a servo motor (309), a "T"-shaped slide groove (3010), a "T"-shaped slider (3011), two rollers (301), a movable groove (302), a guide groove (306), a guide rod (307), and a spring (3015); The movable groove (302) is opened on the end surface of the frame (1) and completely penetrates the frame (1); the roller (301) is rotatably and slidably connected to the inner wall of the movable groove (302); the first synchronous wheel (303) is assembled on the outer wall of one of the rollers (301); the second synchronous wheel (304) is assembled on the outer wall of the other roller (301); the first synchronous wheel (303) and the second synchronous wheel (304) are connected by transmission through the synchronous belt (305); and the outer sides of the first synchronous wheel (303) and the second synchronous wheel (304) are meshed with the tooth grooves on the inner side of the synchronous belt (305); The guide groove (306) is formed on one end surface of the frame (1), one end of the guide rod (307) is slidably connected to the inside of the guide groove (306), the spring (3015) is installed in the inside of the guide groove (306), and one end of the spring (3015) is fixedly connected to the guide rod (307); The "T"-shaped chute (3010) is opened on the other end face of the frame, the "T"-shaped slider (3011) is slidably connected to the inside of the "T"-shaped chute (3010), the movable frame (308) is fixedly connected to the end of the "T"-shaped slider (3011), the servo motor (309) is installed on the inner end face of the movable frame (308), and the output shaft end of the servo motor (309) is connected to one of the second synchronous wheels (304).

3. A thread rolling machine transmission device for piston rod production and processing according to claim 2, characterized in that: The two guide grooves (306) are arranged in an upper and lower staggered manner, and the other end of the guide rod (307) is in contact with the surface of the synchronous belt (305).

4. A thread rolling machine transmission device for piston rod production and processing according to claim 2, characterized in that: The roller cutter head (2) is mounted on the end of the roller (301), and the two rollers (301) in a synchronously rotating state are used to respectively drive the two roller cutter heads (2) to rotate synchronously.

5. The thread rolling machine transmission device for piston rod production and processing according to claim 2, characterized in that: The moving assembly comprises a shaft-holding motor (3012), a bidirectional lead screw (3014) and two connecting rings (3013); The shaft-holding motor (3012) is mounted on the other end face of the frame (1); the connecting ring (3013) is rotatably connected to the outer wall of the rotating roller (301); the bidirectional screw rod (3014) is connected to the output shaft end of the shaft-holding motor (3012); and the bidirectional screw rod (3014) is connected to the protruding parts of the two connecting rings (3013) via a screw rod seat.

6. A thread rolling machine transmission device for piston rod production and processing according to claim 5, characterized in that: The two connecting rings (3013) are symmetrically arranged, the inner cavity of one connecting ring (3013) is provided with an internal thread engaged with the positive thread of the bidirectional screw rod (3014), and the inner cavity of the other connecting ring (3013) is provided with an internal thread engaged with the reverse thread of the bidirectional screw rod (3014).

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