Synchronous thread rolling device for double-end connecting rod threads

Abstract

The utility model discloses a double-end connecting rod thread synchronous thread rolling device which comprises a first thread rolling plate and a second thread rolling plate, thread rolling tooth grooves are formed in the front portions and the rear portions of the working faces of the first thread rolling plate and the second thread rolling plate respectively, a gap is formed between the first thread rolling plate and the second thread rolling plate, and a front limiting plate and a rear limiting plate which are located in the gap are installed on the first thread rolling plate. The surfaces of the limiting plates are smooth, and adjusting mechanisms capable of adjusting the distance between the front limiting plate and the rear limiting plate are installed on the two sides of the first thread rolling plate. According to the thread rolling device, double-end synchronous thread rolling of the connecting rod can be achieved, and efficiency is high; during thread rolling, the front limiting plate and the rear limiting plate can limit the two end sides of the connecting rod, so that lateral sliding is avoided during rolling, and the thread rolling precision is improved; the distance between the two limiting plates is adjusted through the adjusting mechanism, and thread rolling of the two ends of connecting rods with different lengths can be achieved.

Description

Technical Field

[0001] The utility model belongs to the technical field of double-end connecting rod processing, and in particular relates to a double-end connecting rod thread synchronous thread rolling device. Background Art

[0002] The double-ended connecting rod connects different components at both ends and plays multiple roles such as connection, fixation, and reinforcement. According to different needs, the double-ended connecting rod has various forms, including a double-ended connecting rod with different components connected by threads at both ends.

[0003] When processing this kind of connecting rod with threads on both ends, it is necessary to process the thread grooves on both ends separately. When processing the thread grooves, the thread rolling process can be performed by a thread rolling plate, but the thread rolling plate can generally only roll one end at a time, so the efficiency is not high; and when rolling the threads, it is difficult to limit the side of the connecting rod when rolling the threads of the connecting rod, and the connecting rod is prone to lateral sliding, and the thread rolling accuracy is low. Utility Model Content

[0004] The utility model provides a double-head connecting rod thread synchronous thread rolling device. When rolling, the front and rear limit plates can limit the two end sides of the connecting rod, so that lateral sliding will not occur during rolling, thereby improving the thread rolling accuracy. By adjusting the distance between the two limit plates through an adjustment mechanism, the thread rolling of the two ends of connecting rods of different lengths can be handled to solve the problems raised in the above-mentioned background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a double-head connecting rod thread synchronous thread rolling device, comprising a first thread rolling plate and a second thread rolling plate, thread rolling grooves are arranged at the front and rear of the working surfaces of the first thread rolling plate and the second thread rolling plate, a gap is arranged between the first thread rolling plate and the second thread rolling plate, the first thread rolling plate is provided with front and rear limit plates located in the gap, the surface of the limit plates is smooth, and adjustment mechanisms are arranged on both sides of the first thread rolling plate for adjusting the distance between the front and rear limit plates.

[0006] Preferably, the adjustment mechanism includes fixed plates located in front and behind both sides of the first thread rolling plate, and the front and rear fixed plates are equipped with screws for rotation through bearings, and two sliding seats are relatively installed on the screws, and the screw grooves of the screws and the two sliding seats are mirror-imaged and matched, and are connected to the sliding seat screw transmission, and the limit plate is fixedly connected to the top of the sliding seat through a connecting part, and the two screws are synchronously driven by the driving mechanism.

[0007] Preferably, the driving mechanism includes a driven pulley fixed to the front end of the screw rod, a mounting plate is provided below the first thread rolling plate, and a driving motor is fixed to the plate, a driving pulley is fixed to the output shaft of the driving motor, and the driving pulley and the two driven pulleys are connected by a synchronous belt.

[0008] Preferably, the slide seat is transmission connected to the screw rod via a ball screw pair.

[0009] Preferably, a hemispherical groove is provided on the side of the slide seat close to the first thread rolling plate and is equipped with a ball, and a rolling groove corresponding to the ball is provided on the side wall of the first thread rolling plate.

[0010] Preferably, the fixing plate is provided with an extended edge at one end close to the first thread rolling plate and is provided with a screw hole for fixing by tightening screws.

[0011] Compared with the prior art, the beneficial effects of the utility model are:

[0012] 1. It can realize the synchronous thread rolling of double ends of connecting rod with high efficiency.

[0013] 2. When rolling the thread, the front and rear limit plates can limit the two ends of the connecting rod, so that lateral sliding will not occur during rolling, thereby improving the thread rolling accuracy.

[0014] 3. The distance between the two limit plates can be adjusted through the adjustment mechanism to cope with the thread rolling at both ends of connecting rods of different lengths.

[0015] 4. During adjustment, the two limit plates always move synchronously from the middle in a mirror-image manner, and after rapid adjustment, the two ends of the connecting rods of different lengths can be threaded synchronously. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the main structure of the utility model;

[0017] Figure 2 It is a partial top view structural schematic diagram of the utility model;

[0018] Figure 3 It is a partial bottom view structural schematic diagram of the utility model;

[0019] Figure 4 It is a side view structural diagram of the sliding seat, hemispherical groove and ball of the utility model;

[0020] Figure 5 This is a schematic diagram of the first thread rolling plate and the groove rolling structure of the utility model.

[0021] In the figure: 1. first thread rolling plate; 2. second thread rolling plate; 3. thread rolling groove; 4. limit plate; 5. fixed plate; 6. screw rod; 7. slide seat; 8. connecting part; 9. driven pulley; 10. mounting plate; 11. driving motor; 12. driving pulley; 13. synchronous belt; 14. ball screw pair; 15. hemispherical groove; 16. ball; 17. rolling groove; 18. extended edge. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0023] See also Figure 1-5 The utility model provides a double-head connecting rod thread synchronous thread rolling device, including a first thread rolling plate 1 and a second thread rolling plate 2, the front and rear working surfaces of the first thread rolling plate 1 and the second thread rolling plate 2 are both provided with thread rolling grooves 3, a gap is provided between the first thread rolling plate 1 and the second thread rolling plate 2, and the first thread rolling plate 1 is provided with front and rear limit plates 4 located in the gap, the surface of the limit plates 4 is smooth, and the first thread rolling plate 1 is provided with adjustment mechanisms on both sides of the first thread rolling plate 1 for adjusting the distance between the front and rear limit plates 4; during processing, the connecting rod to be threaded is placed on the first thread rolling plate 1, and the second thread rolling plate 2 moves relative to the first thread rolling plate 1, and the two ends of the connecting rod are threaded through the thread rolling grooves 3, and during thread rolling, the front and rear limit plates 4 can limit the two end sides of the connecting rod, so that lateral sliding will not occur during rolling, and the distance between the two limit plates 4 can be adjusted by the adjustment mechanism, so as to cope with the thread rolling at both ends of connecting rods of different lengths.

[0024] Specifically, the adjustment mechanism includes a fixed plate 5 located at the front and rear of both sides of the first thread rolling plate 1, and the front and rear fixed plates 5 are equipped with screws 6 that are rotatable through bearings. Two slides 7 are relatively installed on the screw rods 6, and the screw rods 6 are mirror-imaged with the thread grooves that cooperate with the two slides 7, and are connected with the slides 7 through a screw transmission. The limit plate 4 is fixedly connected to the top of the slide 7 through a connecting part 8, and the two screw rods 6 are synchronously driven by the driving mechanism; in this embodiment, the two screw rods 6 are synchronously driven to rotate by the driving mechanism, and when the two screw rods 6 rotate, the two slides 7 are driven to move synchronously from the middle, thereby synchronously adjusting the spacing between the two limit plates 4, and when adjusting, the two limit plates 4 are always synchronously mirror-imaged from the middle, so that the synchronous thread rolling of the two ends of the connecting rods of different lengths can be achieved after rapid adjustment.

[0025] Specifically, the driving mechanism includes a driven pulley 9 fixed at the front end of the screw rod 6, a mounting plate 10 is provided under the first thread rolling plate 1, and a driving motor 11 is fixed thereto, a driving pulley 12 is fixed to the output shaft of the driving motor 11, and the driving pulley 12 is connected to the two driven pulleys 9 through a synchronous belt 13; in this embodiment, the driving pulley 12 is driven to rotate by the driving motor 11, and then the two driven pulleys 9 are synchronously driven to rotate through the synchronous belt 13, thereby synchronously driving the two screw rods 6 to rotate.

[0026] Specifically, the slide seat 7 is connected to the screw rod 6 through a ball screw pair 14; in this embodiment, the ball screw pair 14 cooperates with the screw rod 6 to improve the precision of the transmission and help improve the adjustment accuracy.

[0027] Specifically, a hemispherical groove 15 is provided on the side of the slide seat 7 close to the first thread rolling plate 1, and a ball 16 is installed thereon. The side wall of the first thread rolling plate 1 is provided with a rolling groove 17 corresponding to the ball 16. In this embodiment, when the screw rod 6 rotates, the ball 16 can only roll along the rolling groove 17, thereby playing a positioning role along the groove and reducing friction by rolling.

[0028] Specifically, the fixing plate 5 is provided with an extension edge 18 at one end close to the first thread rolling plate 1 and a screw hole, and is fixed by tightening screws; in this embodiment, the fixing plate 5 can be removed from the first thread rolling plate 1, which is convenient for the installation and disassembly of the adjustment mechanism.

[0029] In order to facilitate understanding of the above technical solution of the present invention, the working principle or operation method of the present invention in the actual process is described in detail below.

[0030] Working principle: During processing, the connecting rod that needs to be threaded is placed on the first thread rolling plate 1, and the second thread rolling plate 2 moves relative to the first thread rolling plate 1, and the two ends of the connecting rod are threaded through the thread rolling grooves 3. During thread rolling, the front and rear limit plates 4 can limit the two end sides of the connecting rod, so that no lateral sliding occurs during rolling, and the distance between the two limit plates 4 can be adjusted through the adjustment mechanism to cope with the thread rolling of the two ends of connecting rods of different lengths.

[0031] The specific adjustment process is that the driving motor 11 drives the active pulley 12 to rotate, and then drives the two driven pulleys 9 to rotate synchronously through the synchronous belt 13, thereby synchronously driving the two screw rods 6 to rotate, and when the two screw rods 6 rotate, they can cooperate with the ball screw pair 14 to drive the two slide seats 7 to move synchronously from the middle, and then the spacing between the two limit plates 4 can be synchronously adjusted, and during adjustment, the two limit plates 4 always move synchronously from the middle in a mirror image, so that after rapid adjustment, the two ends of the connecting rods of different lengths can be synchronously threaded.

[0032] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A double-ended connecting rod thread synchronous thread rolling device, comprising a first thread rolling plate (1) and a second thread rolling plate (2), characterized in that: The first thread rolling plate (1) and the second thread rolling plate (2) are both provided with thread rolling grooves (3) at the front and rear of the working surfaces, a gap is provided between the first thread rolling plate (1) and the second thread rolling plate (2), the first thread rolling plate (1) is provided with two front and rear limit plates (4) located in the gap, the surface of the limit plates (4) is smooth, and adjustment mechanisms are provided on both sides of the first thread rolling plate (1) for adjusting the distance between the front and rear limit plates (4).

2. A double-end connecting rod thread synchronous thread rolling device according to claim 1, characterized in that: The adjustment mechanism comprises fixed plates (5) located at the front and rear sides of the first thread rolling plate (1); the front and rear fixed plates (5) are rotatably provided with screw rods (6) through bearings; two slide seats (7) are relatively provided on the screw rod (6); the screw rod (6) and the thread grooves matching the two slide seats (7) are arranged in a mirror image and are connected to the slide seats (7) by screw transmission; the limit plate (4) is fixedly connected to the top of the slide seat (7) through a connecting portion (8); and the two screw rods (6) are synchronously driven by a driving mechanism.

3. A double-end connecting rod thread synchronous thread rolling device according to claim 2, characterized in that: The driving mechanism comprises a driven pulley (9) fixed at the front end of the screw rod (6); a mounting plate (10) is provided below the first thread rolling plate (1) and is fixed with a driving motor (11); a driving pulley (12) is fixed to the output shaft of the driving motor (11); the driving pulley (12) and the two driven pulleys (9) are connected via a synchronous belt (13).

4. A double-end connecting rod thread synchronous thread rolling device according to claim 2, characterized in that: The slide seat (7) is transmission-connected to the screw rod (6) via a ball screw pair (14).

5. A double-end connecting rod thread synchronous thread rolling device according to claim 2, characterized in that: The side of the slide seat (7) close to the first thread rolling plate (1) is provided with a hemispherical groove (15) and is equipped with a ball (16); the side wall of the first thread rolling plate (1) is provided with a rolling groove (17) corresponding to the ball (16).

6. A double-end connecting rod thread synchronous thread rolling device according to claim 2, characterized in that: An end of the fixing plate (5) close to the first thread rolling plate (1) is provided with an extension edge (18) and a screw hole for fixing by tightening screws.

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