Machining device with positioning mechanism

Abstract

The utility model discloses a machining device with a positioning mechanism, which relates to the technical field of piston rod machining and comprises a base, a placing frame is movably arranged at the top of the base, a plurality of placing holes are formed in the top end of the placing frame at equal intervals in a penetrating manner, and clamping mechanisms for fixing piston rods are arranged on two sides of the placing holes. Supporting frames are rotatably connected to the two sides of the containing frame, the bottom ends of the supporting frames are slidably connected to the inner wall of the base, lifting mechanisms for lifting the supporting frames are arranged at the bottom ends of the supporting frames, limitation on a driving rod is unlocked by pressing a locking piece, at the moment, a hand wheel is rotated to drive the driving rod, the driving rod drives a second bevel gear, and the second bevel gear is driven to rotate; the second bevel gear drives the first bevel gear, then a transmission gear on the first bevel gear drives the first clamping plate and the second clamping plate to move in the opposite directions, then the first clamping plate and the second clamping plate drive the first arc-shaped clamping plate and the second arc-shaped clamping plate to move in the direction close to each other, and clamping of the piston rod is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of piston rod processing, in particular to a processing device with a positioning mechanism. Background Technique

[0002] The piston rod of a hydraulic shock absorber is a key component used to reduce mechanical vibration and mitigate impact force, mainly used in hydraulic shock absorbers of motorcycles, electric bicycles, automobiles, etc. During the processing of the piston rod, drilling operations need to be performed on the end faces of both ends of the semi-finished piston rod. Therefore, during the processing, the semi-finished piston rod needs to be flipped.

[0003] Patent (CN202220425270.7) discloses a positioning device for piston rod processing, including a base, a first positioning block, and a second positioning block. A placement groove for accommodating the first positioning block is provided at the upper end of the base. A groove is provided at the upper end of the first positioning block, and uniformly distributed slots are provided at the bottom end of the inner wall of the groove. The lower end of the second positioning block is adapted to the groove. Uniformly distributed through grooves are provided on the second positioning block. The through grooves are vertically arranged and match the slots. During the use of this device, the semi-finished piston rod is inserted into the through grooves, which facilitates operations such as drilling on the semi-finished piston rod. When one end of the semi-finished piston rod is completed, the second positioning block is pulled upward to rotate 180°, and then the second positioning block is re-inserted into the groove. The second positioning block is in close contact with the groove under the action of a tension spring, realizing the rapid commutation of the semi-finished piston rod and effectively improving the operation efficiency.

[0004] There are the following problems in the above patent: 1. The mechanism responsible for clamping the piston rod inside the second positioning block is an elastic ring. The semi-finished piston rod itself has a certain weight. The clamping force of the elastic ring itself and the inertia generated when the second positioning block rotates 180° easily cause the piston rod to move out of the through groove in the second positioning block, posing a certain safety hazard and possibly resulting in the scrapping of the piston rod; 2. When the staff pulls the second positioning block upward, the tension spring will be stretched under force. Therefore, under the downward pulling force generated by the self-weight of the second positioning block, the tension of the tension spring, and the self-weight of the piston rod inside the second positioning block, multiple staff members are required to cooperate to pull it up, reducing the usability of the equipment. Content of the Utility Model

[0005] The purpose of the utility model is to provide a processing device with a positioning mechanism to solve the problems raised in the above background technique.

[0006] To solve the above technical problems, the present utility model provides the following technical solution: a processing device with a positioning mechanism, including a base, on the top of the base is movably arranged a placement rack, at the top of the placement rack are equidistantly perforated with a number of placement holes, on both sides of the placement holes are arranged clamping mechanisms for fixing the piston rod, on both sides of the placement rack are rotatably connected support frames, the bottom ends of the support frames are slidably connected to the inner wall of the base and at the bottom ends of the support frames are arranged lifting mechanisms for lifting the support frames. The clamping mechanism includes a transmission rod rotatably connected to one side of the inner wall of the placement rack, at positions near the upper and lower ends of the transmission rod are fixedly connected transmission gears, on the front and rear sides of the two transmission gears are respectively meshed and connected with a first clamping plate and a second clamping plate, at one ends of the first clamping plate and the second clamping plate close to each other are respectively equidistantly arranged a number of first arc-shaped clamping plates and second arc-shaped clamping plates, the first clamping plate and the second clamping plate are both slidably connected to the inner wall of the placement rack, at the bottom end of the transmission rod is arranged a first bevel gear, and on the surface of the first bevel gear is meshed and connected with a second bevel gear.

[0007] Furthermore, on the front side of the placement rack is arranged a hand wheel, fixedly connected to one side of the hand wheel close to the placement rack is a driving rod, the end of the driving rod away from the hand wheel penetrates the placement rack and is fixedly connected to the central position of the second bevel gear, on the surface of the driving rod at the position between the hand wheel and the placement rack is arranged an external gear, and outside the external gear is arranged a locking member.

[0008] Furthermore, the locking member includes a limiting plate slidably connected to the outside of the external gear, at the central position of the limiting plate is perforated with an internal gear adapted to the shape of the external gear, rotatably connected to the inner wall of the limiting plate is a rotating ring, symmetrically arranged on the outside of the rotating ring are two pushing plates, slidably connected to both sides of the limiting plate are guide posts, the ends of the two guide posts away from the limiting plate are fixedly connected to the front side of the placement rack, sleeved on the surface of the guide posts are springs, and the two ends of the springs are respectively fixedly connected to the placement rack and the limiting plate. Fixedly connected to the front side of the placement rack are two L-shaped plates, the two L-shaped plates are located on both sides of the driving rod and correspond to the positions of the pushing plates.

[0009] Furthermore, the lifting mechanism includes a ball screw rotatably connected to the inner wall of the base, on the left and right sides of the ball screw are respectively movably and matingly connected with a first moving block and a second moving block, at the front and rear sides of the top ends of the first moving block and the second moving block are respectively rotatably connected a first lifting rod and a second lifting rod, and the ends of the first lifting rod and the second lifting rod away from the first moving block and the second moving block are both rotatably connected to the bottom end of the support frame.

[0010] Further, a driving motor is fixedly connected to one side of the base. The output end of the driving motor penetrates through the base and is fixedly connected to one end of a ball screw. Guide rods are arranged on both sides of the ball screw. Both ends of the guide rods are fixedly connected to the inner wall of the base, and the surfaces of the guide rods are slidably connected to the first moving block and the second moving block. The thread directions on both sides of the ball screw are opposite.

[0011] Further, a runner is rotatably connected to the outside of the support frame. The output end of the runner penetrates through the support frame and is fixedly connected to the placement rack.

[0012] Further, the number of the first arc-shaped clamping plates and the second arc-shaped clamping plates is equal to the number of the placement holes, and the first arc-shaped clamping plates and the second arc-shaped clamping plates are located on both sides of the placement holes. The arc directions of the first arc-shaped clamping plates and the second arc-shaped clamping plates are opposite.

[0013] Compared with the prior art, the beneficial effects achieved by the present utility model are as follows:

[0014] 1. By pressing the locking member in the clamping mechanism to unlock the restriction on the driving rod, at this time, by rotating the handwheel, the handwheel drives the driving rod, the driving rod drives the second bevel gear, the second bevel gear drives the first bevel gear, and then the transmission gear on the first bevel gear drives the first clamping plate and the second clamping plate to move. Since the first clamping plate and the second clamping plate are located on both sides of the transmission gear, the first clamping plate and the second clamping plate move in opposite directions, and then the first clamping plate and the second clamping plate drive the first arc-shaped clamping plate and the second arc-shaped clamping plate to move towards each other or away from each other, realizing the clamping and fixing effect on the piston rod.

[0015] 2. By starting the driving motor in the lifting mechanism, the driving motor drives the ball screw to rotate, the ball screw drives the first moving block and the second moving block to move horizontally towards each other or away from each other. Then, the first moving block and the second moving block drive the support frame to rise or fall through the first lifting rod and the second lifting rod, and then the support frame drives the placement rack to rise, thereby improving the working efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The drawings are used to provide a further understanding of the present utility model and constitute a part of the specification. They are used together with the embodiments of the present utility model to explain the present utility model and do not constitute a limitation to the present utility model. In the drawings:

[0017] Figure 1 is the overall structural schematic diagram of the present utility model;

[0018] Figure 2 is the front view structural schematic diagram of the clamping mechanism in the present utility model;

[0019] Figure 3It is a schematic top view structure diagram of the clamping mechanism in the present utility model;

[0020] Figure 4 It is a schematic structure diagram of the locking member of the present utility model;

[0021] Figure 5 is Figure 4 a partial enlarged structure diagram at position A in

[0022] Figure 6 It is a schematic front view structure diagram of the lifting mechanism in the present utility model;

[0023] Figure 7 It is a schematic top view structure diagram of the lifting mechanism in the present utility model.

[0024] In the figure: 1, base; 2, placement rack; 3, placement hole; 4, clamping mechanism; 40, transmission rod; 41, transmission gear; 42, first clamping plate; 43, second clamping plate; 44, first arc-shaped clamping plate; 45, second arc-shaped clamping plate; 46, first bevel gear; 47, second bevel gear; 48, locking member; 480, limiting plate; 481, internal gear; 482, rotating ring; 483, push plate; 484, guide post; 485, spring; 486, L-shaped plate; 49, handwheel; 410, driving rod; 411, external gear; 5, support frame; 50, runner; 6, lifting mechanism; 60, ball screw; 61, first moving block; 62, second moving block; 63, first lifting rod; 64, second lifting rod; 65, driving motor; 66, guide rod. Specific embodiments

[0025] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments in the present utility model, all other embodiments obtained by those of ordinary skill in the art without making creative efforts shall fall within the protection scope of the present utility model.

[0026] Such as Figure 1The processing device with a positioning mechanism shown in the figure includes a base 1. A placement rack 2 is movably arranged on the top of the base 1. A number of placement holes 3 are equidistantly penetrated through the top end of the placement rack 2. Clamping mechanisms 4 for fixing the piston rod are arranged on both sides of the placement holes 3. Support frames 5 are rotatably connected to both sides of the placement rack 2. The bottom ends of the support frames 5 are slidably connected to the inner wall of the base 1, and a lifting mechanism 6 for lifting the support frames 5 is arranged at the bottom ends of the support frames 5. A runner 50 is rotatably connected to the outside of the support frame 5. The output end of the runner 50 penetrates through the support frame 5 and is fixedly connected to the placement rack 2. A groove is opened at the top end of the base 1, and the groove matches the shape of the placement rack 2. In the initial state, the placement rack 2 will be embedded in the groove, and holes matching the number and position of the placement holes 3 are opened at the top of the groove, so that the piston rod can be inserted into the holes to play a stabilizing role.

[0027] As shown in the attached Figure 2 and Figure 3 For the processing device with a positioning mechanism shown in the figure, the clamping mechanism 4 includes a transmission rod 40 rotatably connected to one side of the inner wall of the placement rack 2. Transmission gears 41 are fixedly connected to the positions near the upper and lower ends of the transmission rod 40. A first clamping plate 42 and a second clamping plate 43 are respectively meshed and connected to the front and rear sides of the two transmission gears 41. A number of first arc-shaped clamping plates 44 and second arc-shaped clamping plates 45 are respectively arranged at equal distances at the ends of the first clamping plate 42 and the second clamping plate 43 that are close to each other. Both the first clamping plate 42 and the second clamping plate 43 are slidably connected to the inner wall of the placement rack 2. A first bevel gear 46 is arranged at the bottom end of the transmission rod 40. A second bevel gear 47 is meshed and connected to the surface of the first bevel gear 46. A handwheel 49 is arranged on the front side of the placement rack 2. A driving rod 410 is fixedly connected to the side of the handwheel 49 close to the placement rack 2. The end of the driving rod 410 away from the handwheel 49 penetrates through the placement rack 2 and is fixedly connected to the central position of the second bevel gear 47. An external gear 411 is arranged on the surface of the driving rod 410 at the position between the handwheel 49 and the placement rack 2. A locking member 48 is arranged outside the external gear 411. The number of the first arc-shaped clamping plates 44 and the second arc-shaped clamping plates 45 is equal to that of the placement holes 3, and the first arc-shaped clamping plates 44 and the second arc-shaped clamping plates 45 are located on both sides of the placement holes 3. The arc directions of the first arc-shaped clamping plates 44 and the second arc-shaped clamping plates 45 are opposite.

[0028] When the piston rod is placed into the placement hole 3, the operator unlocks the restriction on the drive rod 410 by holding down the locking member 48. At this time, by rotating the handwheel 49, the handwheel 49 drives the drive rod 410. The drive rod 410 drives the second bevel gear 47, and the second bevel gear 47 drives the first bevel gear 46. Further, the transmission gear 41 on the first bevel gear 46 drives the first clamping plate 42 and the second clamping plate 43 to move. Since the first clamping plate 42 and the second clamping plate 43 are located on both sides of the transmission gear 41, the first clamping plate 42 and the second clamping plate 43 move in opposite directions. Further, the first clamping plate 42 and the second clamping plate 43 drive the first arc-shaped clamping plate 44 and the second arc-shaped clamping plate 45 to move in the direction of approaching or separating from each other, realizing the clamping and fixing effect on the piston rod.

[0029] As shown in the attached Figure 4 and Figure 5 The processing device with a positioning mechanism shown, the locking member 48 includes a restricting plate 480 slidably connected to the outside of the external gear 411. An internal gear 481 adapted to the shape of the external gear 411 is penetrated through the center position of the restricting plate 480. A rotating ring 482 is rotatably connected to the inner wall of the restricting plate 480. Two push plates 483 are symmetrically arranged on the outside of the rotating ring 482. Two guide posts 484 are slidably connected to both sides of the restricting plate 480. One end of the two guide posts 484 away from the restricting plate 480 is fixedly connected to the front side of the placement rack 2. A spring 485 is sleeved on the surface of the guide post 484. Both ends of the spring 485 are fixedly connected to the placement rack 2 and the restricting plate 480 respectively. Two L-shaped plates 486 are fixedly connected to the front side of the placement rack 2. The two L-shaped plates 486 are located on both sides of the drive rod 410 and correspond to the positions of the push plates 483.

[0030] During use, while pressing, rotate the two push plates 483 counterclockwise. The two push plates 483 drive the restricting plate 480 to move through the rotating ring 482. At this time, the spring 485 is deformed under force. When the two push plates 483 move below the horizontal plates of the two L-shaped plates 486, rotate the two push plates 483 clockwise back to the original position, and then release the two push plates 483. At this time, the two L-shaped plates 486 restrict the movement of the two push plates 483. At this time, the drive rod 410 is released. After the piston rod is clamped, press down and rotate the two push plates 483 clockwise. At this time, under the action of the spring 485 restoring its elastic force, the restricting plate 480 is pushed back to its original position. The internal gear 481 penetrated through the top end of the restricting plate 480 realizes the limit on the drive rod 410, thereby preventing loosening during clamping.

[0031] As shown in the attached Figure 6 and Figure 7The processing device with a positioning mechanism shown in the figure, the lifting mechanism 6 includes a ball screw 60 rotatably connected to the inner wall of the base 1. The left and right sides of the ball screw 60 are respectively movably and matingly connected with a first moving block 61 and a second moving block 62. The front and rear sides of the tops of the first moving block 61 and the second moving block 62 are respectively rotatably connected with a first lifting rod 63 and a second lifting rod 64. The ends of the first lifting rod 63 and the second lifting rod 64 away from the first moving block 61 and the second moving block 62 are both rotatably connected to the bottom end of the support frame 5. One side of the base 1 is fixedly connected with a driving motor 65. The output end of the driving motor 65 penetrates through the base 1 and is fixedly connected to one end of the ball screw 60. Guide rods 66 are arranged on both sides of the ball screw 60. The two ends of the guide rods 66 are fixedly connected to the inner wall of the base 1, and the surfaces of the guide rods 66 are slidably connected with the first moving block 61 and the second moving block 62. The thread directions on both sides of the ball screw 60 are opposite.

[0032] The staff starts the driving motor 65. The driving motor 65 drives the ball screw 60 to rotate. The ball screw 60 drives the first moving block 61 and the second moving block 62 to move horizontally in the direction of moving away from or approaching each other. Furthermore, the first moving block 61 and the second moving block 62 drive the support frame 5 to rise or fall through the first lifting rod 63 and the second lifting rod 64.

[0033] Working principle of the utility model: When the piston rod is placed into the placement hole 3, the staff presses and rotates two push plates 483 counterclockwise. The two push plates 483 drive the limiting plate 480 to move through the rotating ring 482. At this time, the spring 485 deforms under force. When the two push plates 483 move to the lower sides of the horizontal plates of the two L-shaped plates 486, the two push plates 483 are rotated clockwise back to the original position and then the two push plates 483 are released. At this time, the two L-shaped plates 486 limit the movement of the two push plates 483. At this time, the driving rod 410 is released. Then, by rotating the handwheel 49, the handwheel 49 drives the driving rod 410 to drive. The driving rod 410 drives the second bevel gear 47, and the second bevel gear 47 drives the first bevel gear 46. Further, the transmission gear 41 on the first bevel gear 46 drives the first clamping plate 42 and the second clamping plate 43 to move. Since the first clamping plate 42 and the second clamping plate 43 are located on both sides of the transmission gear 41, the first clamping plate 42 and the second clamping plate 43 move in opposite directions. Further, the first clamping plate 42 and the second clamping plate 43 drive the first arc-shaped clamping plate 44 and the second arc-shaped clamping plate 45 to move in the direction of approaching or moving away from each other, realizing the clamping and fixing function of the piston rod. When one end of the semi-finished piston rod is drilled, when the staff needs to turn over the semi-finished piston rod, the driving motor 65 is started. The driving motor 65 drives the ball screw 60 to rotate. The ball screw 60 drives the first moving block 61 and the second moving block 62 to move horizontally in the direction of moving away from each other. Further, the first moving block 61 and the second moving block 62 drive the support frame 5 to rise through the first lifting rod 63 and the second lifting rod 64. At this time, the placement frame 2 is driven to rotate 180 degrees through the runner 50. Then, the driving motor 65 is rotated in the reverse direction, and then the ball screw 60 drives the first moving block 61 and the second moving block 62 to move horizontally in the direction of approaching each other. Further, the first moving block 61 and the second moving block 62 drive the support frame 5 to descend into the base 1 through the first lifting rod 63 and the second lifting rod 64. Thus, drilling on the other side of the semi-finished piston rod can be realized. Its semi-automatic operation improves the work efficiency of the staff.

[0034] Finally, it should be noted that the above are only the preferred embodiments of the present utility model and are not used to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, for those skilled in the art, they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements for some of the technical features. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A processing device with a positioning mechanism, comprising a base (1), characterized in that: A placing frame (2) is movably arranged on the top of the base (1), a plurality of placing holes (3) are equidistantly penetrated through the top of the placing frame (2), clamping mechanisms (4) for fixing the piston rod are arranged on both sides of the placing holes (3), support frames (5) are rotatably connected to both sides of the placing frame (2), the bottom end of the support frame (5) is slidably connected to the inner wall of the base (1), and a lifting mechanism (6) for lifting the support frame (5) is arranged at the bottom end of the support frame (5); The clamping mechanism (4) comprises a transmission rod (40) rotatably connected to one side of the inner wall of the placement rack (2); the transmission rod (40) is fixedly connected with a transmission gear (41) near the upper and lower ends; the front and rear sides of the two transmission gears (41) are respectively meshed with a first clamping plate (42) and a second clamping plate (43); the ends of the first clamping plate (42) and the second clamping plate (43) close to each other are respectively provided with a plurality of first arc-shaped clamping plates (44) and a second arc-shaped clamping plates (45) at equal distances; the first clamping plate (42) and the second clamping plate (43) are both slidably connected to the inner wall of the placement rack (2); a first bevel gear (46) is provided at the bottom end of the transmission rod (40); and a second bevel gear (47) is meshed with the surface of the first bevel gear (46).

2. The processing device with a positioning mechanism according to claim 1, characterized in that: A hand wheel (49) is arranged on the front side of the placement rack (2); a driving rod (410) is fixedly connected to the side of the hand wheel (49) close to the placement rack (2); an end of the driving rod (410) away from the hand wheel (49) passes through the placement rack (2) and is fixedly connected to the center position of the second bevel gear (47); an external gear (411) is arranged on the surface of the driving rod (410) at a position between the hand wheel (49) and the placement rack (2); and a locking member (48) is arranged on the outside of the external gear (411).

3. The processing device with a positioning mechanism according to claim 2, characterized in that: The locking member (48) comprises a limiting plate (480) slidably connected to the outer side of the outer gear (411); an inner gear (481) adapted to the shape of the outer gear (411) is penetrated through the center of the limiting plate (480); a rotating ring (482) is rotatably connected to the inner wall of the limiting plate (480); two push plates (483) are symmetrically arranged on the outer side of the rotating ring (482); guide columns (484) are slidably connected to both sides of the limiting plate (480); One end of the two guide columns (484) away from the limiting plate (480) is fixedly connected to the front side of the placement rack (2); a spring (485) is sleeved on the surface of the guide column (484); two ends of the spring (485) are respectively fixedly connected to the placement rack (2) and the limiting plate (480); two L-plates (486) are fixedly connected to the front side of the placement rack (2); the two L-plates (486) are located on both sides of the driving rod (410) and correspond to the position of the push plate (483).

4. The processing device with a positioning mechanism according to claim 1, characterized in that: The lifting mechanism (6) comprises a ball screw (60) rotatably connected to the inner wall of the base (1); the left and right sides of the ball screw (60) are movably matched and connected with a first moving block (61) and a second moving block (62); the front and rear sides of the top of the first moving block (61) and the second moving block (62) are rotatably connected with a first lifting rod (63) and a second lifting rod (64); the ends of the first lifting rod (63) and the second lifting rod (64) away from the first moving block (61) and the second moving block (62) are both rotatably connected to the bottom end of the support frame (5).

5. The processing device with a positioning mechanism according to claim 4, characterized in that: A driving motor (65) is fixedly connected to one side of the base (1); an output end of the driving motor (65) passes through the base (1) and is fixedly connected to one end of a ball screw (60); guide rods (66) are provided on both sides of the ball screw (60); both ends of the guide rods (66) are fixedly connected to the inner wall of the base (1); and the surface of the guide rods (66) is slidably connected to the first moving block (61) and the second moving block (62); and the threads on both sides of the ball screw (60) have opposite rotation directions.

6. The processing device with a positioning mechanism according to claim 1, characterized in that: A rotating wheel (50) is rotatably connected to the outer side of the support frame (5), and an output end of the rotating wheel (50) passes through the support frame (5) and is fixedly connected to the placement frame (2).

7. The processing device with a positioning mechanism according to claim 1, characterized in that: The number of the first arc-shaped splints (44) and the second arc-shaped splints (45) is equal to the number of the placement holes (3), and the first arc-shaped splints (44) and the second arc-shaped splints (45) are located on both sides of the placement holes (3), and the arc directions of the first arc-shaped splints (44) and the second arc-shaped splints (45) are opposite.

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