Push rod mechanism with buffer structure

Abstract

The push rod mechanism with the buffer structure comprises a mounting plate, a sliding rail, a push rod and a driving motor, the sliding rail is arranged on the mounting plate, the length direction of the sliding rail is horizontally arranged, the length direction of the push rod is parallel to the length direction of the sliding rail, a sliding block is arranged at one end of the push rod, and the sliding block is arranged on the sliding rail. The sliding block is slidably connected to the sliding rail in the length direction of the sliding rail, the driving motor is fixed to the mounting plate and located at the end, away from the sliding block, of the push rod, and a driving part is arranged on an output shaft of the driving motor and abuts against the push rod. The application has the effect of reducing the possibility of part damage.

Description

Technical Field

[0001] The present application relates to the technical field of push rod mechanisms, and in particular to a push rod mechanism with a buffer structure. Background Art

[0002] In common machining processes, push rod mechanisms are often used. The moving end of the push rod mechanism pushes the workpiece from the material box into the transfer track to achieve the automatic transfer of the workpiece or material. However, during the transfer process, the workpiece may get stuck. At this time, the existing push rod mechanism will still forcefully push, which is likely to cause damage to the workpiece or other components. Utility Model Content

[0003] In order to reduce the possibility of component damage, the present application provides a push rod mechanism with a buffer structure.

[0004] The push rod mechanism with a buffer structure provided by the present application adopts the following technical solutions:

[0005] A push rod mechanism with a buffer structure includes a mounting plate, a slide rail, a push rod, and a driving motor. The slide rail is arranged on the mounting plate, the length direction of the slide rail is horizontally arranged, the length direction of the push rod is parallel to the length direction of the slide rail, a sliding block is arranged at one end of the push rod, the sliding block is slidably connected to the slide rail along the length direction of the slide rail, the driving motor is fixed on the mounting plate, the driving motor is located at the end of the push rod away from the sliding block, and a driving member is arranged on the output shaft of the driving motor, and the driving member abuts against the push rod.

[0006] By adopting the above technical solutions, the push rod is driven to move through friction force, so as to push the workpiece. When the workpiece gets stuck, the resistance received by the push rod is greater than the friction force between the driving member and the push rod, the driving member will slip, and the movement of the push rod stops, thereby protecting the parts and the driving motor and reducing the possibility of component damage.

[0007] Optionally, an annular groove is circumferentially formed on the outer side of the driving member, and a rubber ring is arranged on the driving member and is clamped in the annular groove, and the rubber ring abuts against the push rod.

[0008] By adopting the above technical solutions, a rubber ring is provided, and the rubber ring abuts against the push rod, thereby increasing the friction force between the push rod and the driving member, so as to more easily drive the push rod to move.

[0009] Optionally, an abutting groove is formed on the side surface of the push rod close to the rubber ring, the abutting groove is V-shaped, the length direction of the abutting groove is parallel to the length direction of the push rod, and both side surfaces of the abutting groove abut against the rubber ring.

[0010] By adopting the above technical solution, a butting groove is provided to increase the butting area between the push rod and the rubber ring, thereby increasing the friction force between the push rod and the driving member, so as to more easily drive the push rod to move.

[0011] Optionally, a guiding block is provided on the mounting plate. The guiding block is located at one end of the push rod away from the sliding block. A guiding groove is formed on the guiding block, and the push rod is slidably connected to the guiding groove.

[0012] By adopting the above technical solution, a guiding block is provided to guide one end of the push rod away from the sliding block, thereby improving the stability of the sliding of the push rod.

[0013] Optionally, two travel switches are provided on the mounting plate. Both travel switches are located above the slide rail. The two travel switches are respectively located at both ends of the slide rail. An induction block is provided on the upper part of one end of the push rod close to the sliding block.

[0014] By adopting the above technical solution, when the push rod is fully retracted, the travel switch on the side close to the sliding block is triggered. When it is fully ejected, the travel switch on the side away from the sliding block is triggered. By calculating the time difference between the disconnection of one travel switch and the triggering of the other travel switch, it can be used as a criterion for judging whether the workpiece is stuck. When the time difference exceeds a certain value, the staff can be reminded that the workpiece at the pushing mechanism may be stuck and needs to be cleaned.

[0015] Optionally, the driving member includes a mounting sleeve, a first mounting block and a second mounting block. The mounting sleeve is sleeved on the output shaft of the driving motor. The first mounting block is arranged on the upper part of the mounting sleeve. The second mounting block is detachably connected to the first mounting block. A first mounting groove is formed on the first mounting block, and a second mounting groove is formed on the second mounting block. The first mounting groove and the second mounting groove form a complete annular groove.

[0016] By adopting the above technical solution, the annular groove is set to be composed of the first mounting groove and the second mounting groove. Thus, when the rubber ring needs to be replaced, only the second mounting block needs to be removed, and then the old rubber ring can be removed. Then, a new rubber ring can be installed and the second mounting block can be installed to fix the rubber ring.

[0017] Optionally, a clamping rod is coaxially arranged on the lower surface of the second mounting block. A clamping hole is formed in the first mounting block in the vertical direction. The clamping rod is clamped in the clamping hole. A limiting block is slidably connected to the lower end of the clamping rod. A limiting groove for hooking the limiting block is formed on the inner wall of the clamping hole.

[0018] By adopting the above technical solution, when installing the second installation block, the clamping rod is clamped in the clamping hole, and then the limiting block is clamped in the limiting groove, so as to fix the second installation block.

[0019] Optionally, a driving rod is slidably connected in the clamping rod, the driving rod extends to the upper surface of the second installation block, a waist-shaped groove is formed in the limiting block, the waist-shaped groove is inclined from the side close to the second installation block to the side far from the second installation block along the axis direction close to the clamping rod, a sliding rod is arranged on the driving rod, the sliding rod is slidably connected in the waist-shaped groove, and the second installation block is provided with a spring for forcing the driving rod to slide downward.

[0020] By adopting the above technical solution, when it is necessary to disassemble the second installation block, only need to pull up the driving rod, and the driving rod can drive the limiting block to slide in the direction close to the axis of the clamping rod through the cooperation of the sliding rod and the waist-shaped groove, so that the limiting block is disengaged from the limit of the limiting groove, and the second installation block can be unlocked.

[0021] To sum up, the utility model has the following beneficial effects:

[0022] 1. The push rod is driven to move by friction force, so as to push the workpiece. When the workpiece is stuck, the resistance received by the push rod is greater than the friction force between the driving part and the push rod, and the driving part will slip, and the movement of the push rod stops, so as to protect the parts and the driving motor and reduce the possibility of component damage;

[0023] 2. The annular groove is composed of a first installation groove and a second installation groove. Thus, when it is necessary to replace the rubber ring, only need to remove the second installation block, then the old rubber ring can be removed, and then a new rubber ring can be installed and the second installation block can be installed to fix the rubber ring. Description of the Drawings

[0024] Figure 1 is the structural schematic diagram of Embodiment 1;

[0025] Figure 2 is the enlarged schematic diagram at A in the figure;

[0026] Figure 3 is the structural schematic diagram of the driving part in Embodiment 2;

[0027] Figure 4 is Figure 3 the enlarged schematic diagram at B in

[0028] Figure 5 is the structural schematic diagram of the clamping rod in Embodiment 2.

[0029] In the figure, 1 is the mounting plate; 2 is the slide rail; 3 is the push rod; 31 is the sliding block; 32 is the abutting groove; 33 is the induction block; 4 is the drive motor; 41 is the driving member; 411 is the mounting sleeve; 412 is the first mounting block; 413 is the second mounting block; 42 is the annular groove; 421 is the first mounting groove; 422 is the second mounting groove; 43 is the rubber ring; 44 is the clamping hole; 441 is the limiting groove; 45 is the clamping rod; 451 is the first sliding groove; 452 is the second sliding groove; 453 is the third sliding groove; 454 is the limiting block; 455 is the kidney-shaped groove; 456 is the sliding rod; 457 is the driving rod; 458 is the spring; 5 is the top plate; 6 is the guiding block; 61 is the guiding groove; 7 is the travel switch. Detailed implementation mode

[0030] The following will further elaborate on this application in conjunction with the attached Figures 1 - 5 for a more detailed description of this application.

[0031] Embodiment 1:

[0032] Embodiment 1 of this application discloses a push rod mechanism with a buffer structure. Referring to Figure 1 and Figure 2 , it includes a mounting plate 1, a slide rail 2, a push rod 3 and a drive motor 4. The length direction of the slide rail 2 is horizontally arranged, and the slide rail 2 is fixedly connected to the mounting plate 1. The length direction of the push rod 3 is parallel to the length direction of the slide rail 2. One end of the push rod 3 is fixedly connected with a sliding block 31, and the sliding block 31 is slidably connected to the slide rail 2 along the length direction of the slide rail 2. The drive motor 4 is fixedly connected to the mounting plate 1. The drive motor 4 is located at one end of the push rod 3 away from the sliding block 31. The drive motor 4 is located below the slide rail 2. A driving member 41 is fixedly installed on the output shaft of the drive motor 4, and the driving member 41 abuts against the push rod 3.

[0033] Referring to Figure 1 and Figure 2 , an annular groove 42 is circumferentially formed on the outer side of the driving member 41, and a rubber ring 43 is arranged on the driving member 41 and is clamped in the annular groove 42, and the rubber ring 43 abuts against the push rod 3.

[0034] Referring to Figure 1 and Figure 2 , an abutting groove 32 is formed on the side surface of the push rod 3 close to the rubber ring 43. The abutting groove 32 is V-shaped, and the length direction of the abutting groove 32 is parallel to the length direction of the push rod 3. Both side walls of the abutting groove 32 abut against the rubber ring 43.

[0035] Referring to Figure 1 and Figure 2, a top plate 5 is fixedly connected to the upper part of the mounting plate 1. Two travel switches 7 are fixedly connected to the lower surface of the top plate 5. The two travel switches 7 are respectively located at both ends of the slide rail 2. An induction block 33 is fixedly connected to the upper part of the push rod 3 near one end of the sliding block 31. The induction block 33 is located between the mounting plate 1 and the travel switch 7, and the formed switch can be an infrared sensor.

[0036] Referring to Figure 1 and Figure 2 , a guide block 6 is fixedly connected to the mounting plate 1. The guide block 6 is located at one end of the push rod 3 away from the sliding block 31. A guide groove 61 is formed in the guide block 6, and the push rod 3 is slidably connected to the guide groove 61.

[0037] The implementation principle of Embodiment 1 of this application is as follows: The push rod 3 is driven to move through friction force, thereby pushing the workpiece. When the workpiece gets stuck, the resistance received by the push rod 3 is greater than the friction force between the driving member 41 and the rubber ring 43, and the driving member 41 will slip, and the movement of the push rod 3 stops, so that the parts and the driving motor 4 can be protected, and the possibility of component damage is reduced.

[0038] Embodiment 2:

[0039] The difference between Embodiment 2 and Embodiment 1 is that, referring to Figure 3 , Figure 4 and Figure 5 , the driving member 41 includes a mounting sleeve 411, a first mounting block 412 and a second mounting block 413. The mounting sleeve 411 is fixedly sleeved on the output shaft of the driving motor 4. The first mounting block 412 is fixedly connected to the upper part of the mounting sleeve 411. The second mounting block 413 is detachably connected to the first mounting block 412. A first mounting groove 421 is formed in a surrounding manner on the side wall of the first mounting block 412, and a second mounting groove 422 is formed in a surrounding manner on the side wall of the second mounting block 413. The first mounting groove 421 and the second mounting groove 422 form a complete annular groove 42.

[0040] Referring to Figure 3 , Figure 4 and Figure 5 , a clamping rod 45 is coaxially and fixedly connected to the lower surface of the second mounting block 413. A clamping hole 44 is coaxially formed in the vertical direction on the upper surface of the first mounting block 412. The clamping rod 45 is clamped in the clamping hole 44. A first sliding groove 451 is formed in the circumferential wall at the lower end of the clamping rod 45. A limiting block 454 is arranged on the clamping rod 45 and is slidably connected to the first sliding groove 451. A limiting groove 441 for hooking the limiting block 454 is formed in the inner wall of the clamping hole 44.

[0041] Referring to Figure 3 , Figure 4 and Figure 5, a second sliding groove 452 is coaxially formed on the lower end surface of the clamping rod 45. The upper part of the second sliding groove 452 extends to the upper surface of the second mounting block 413. A driving rod 457 slidably connected to the second sliding groove 452 is provided on the clamping rod 45. A third sliding groove 453 communicates between the first sliding groove 451 and the second sliding groove 452. An elongated hole 455 is formed on the limiting block 454. The elongated hole 455 is inclined in the direction close to the axis of the clamping rod 45 from the side close to the second mounting block 413 to the side away from the second mounting block 413. A sliding rod 456 is fixedly connected to the peripheral wall of the driving rod 457. The sliding rod 456 passes through the third sliding groove 453 and is slidably connected to the elongated hole 455.

[0042] Referring to Figure 3 , Figure 4 and Figure 5 , the second mounting block 413 is provided with a spring 458 that forces the driving rod 457 to slide downward. The spring 458 is located above the second mounting block 413. The spring 458 is coaxially sleeved on the driving rod 457. One end of the spring 458 is fixedly connected to the upper surface of the second mounting block 413, and the other end of the spring 458 is fixedly connected to the driving rod 457.

[0043] The implementation principle of Embodiment 2 is as follows: The annular groove 42 is set to be composed of a first mounting groove 421 and a second mounting groove 422. Thus, when the rubber ring 43 needs to be replaced, only the second mounting block 413 needs to be removed, and then the old rubber ring 43 can be removed. Then, a new rubber ring 43 is installed and the second mounting block 413 is installed to fix the rubber ring 43.

[0044] The above are all the preferred embodiments of this application. The protection scope of this application is not limited thereby. Therefore, all equivalent changes made according to the structure, shape, and principle of this application should be covered within the protection scope of this application.

Claims

1. A push rod mechanism with a buffer structure, characterized in that: It includes a mounting plate (1), a slide rail (2), a push rod (3) and a driving motor (4). The slide rail (2) is arranged on the mounting plate (1). The length direction of the slide rail (2) is horizontally arranged. The length direction of the push rod (3) is parallel to the length direction of the slide rail (2). One end of the push rod (3) is provided with a sliding block (31). The sliding block (31) is slidably connected to the slide rail (2) along the length direction of the slide rail (2). The driving motor (4) is fixed on the mounting plate (1). The driving motor (4) is located at the end of the push rod (3) away from the sliding block (31). A driving member (41) is arranged on the output shaft of the driving motor (4). The driving member (41) abuts against the push rod (3).

2. The push rod mechanism with a buffer structure according to claim 1, characterized in that: An annular groove (42) is circumferentially formed on the outer side of the driving member (41). A rubber ring (43) is arranged on the driving member (41) and is clamped in the annular groove (42). The rubber ring (43) abuts against the push rod (3).

3. The push rod mechanism with a buffer structure according to claim 2, characterized in that: Abutting grooves (32) are formed on the side surface of the push rod (3) close to the rubber ring (43). The abutting grooves (32) are V-shaped. The length direction of the abutting grooves (32) is parallel to the length direction of the push rod (3). Both side surfaces of the abutting grooves (32) abut against the rubber ring (43).

4. A push rod mechanism with a buffer structure according to claim 1, characterized in that: A guiding block (6) is arranged on the mounting plate (1). The guiding block (6) is located at the end of the push rod (3) away from the sliding block (31). A guiding groove (61) is formed on the guiding block (6). The push rod (3) is slidably connected to the guiding groove (61).

5. A push rod mechanism with a buffer structure according to claim 1, characterized in that: Two travel switches (7) are arranged on the mounting plate (1). Both travel switches (7) are located above the slide rail (2). The two travel switches (7) are respectively located at both ends of the slide rail (2). An induction block (33) is arranged on the upper part of the end of the push rod (3) close to the sliding block (31).

6. The push rod mechanism with a buffer structure according to claim 2, wherein: The driving member (41) includes a mounting sleeve (411), a first mounting block (412) and a second mounting block (413). The mounting sleeve (411) is sleeved on the output shaft of the driving motor (4). The first mounting block (412) is arranged on the upper part of the mounting sleeve (411). The second mounting block (413) is detachably connected to the first mounting block (412). A first mounting groove (421) is formed on the first mounting block (412). A second mounting groove (422) is formed on the second mounting block (413). The first mounting groove (421) and the second mounting groove (422) form a complete annular groove (42).

7. The push rod mechanism with a buffer structure according to claim 6, characterized in that: A clamping rod (45) is coaxially arranged on the lower surface of the second mounting block (413). A clamping hole (44) is formed on the first mounting block (412) in the vertical direction. The clamping rod (45) is clamped in the clamping hole (44). The lower end of the clamping rod (45) is slidably connected with a limiting block (454). A limiting groove (441) for hooking the limiting block (454) is formed on the inner wall of the clamping hole (44).

8. A push rod mechanism with a buffer structure according to claim 7, characterized in that: A driving rod (457) is slidably connected inside the clamping rod (45), the driving rod (457) extends to the upper surface of the second mounting block (413), a kidney-shaped groove (455) is formed in the limiting block (454), the kidney-shaped groove (455) is inclined in the axial direction of the clamping rod (45) from the side close to the second mounting block (413) to the side far from the second mounting block (413), the driving rod (457) is provided with a sliding rod (456), the sliding rod (456) is slidably connected to the kidney-shaped groove (455), and the second mounting block (413) is provided with a spring (458) for forcing the driving rod (457) to slide downward.

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