Push rod assembling device

Abstract

The invention provides a push rod assembling device which comprises a working table, a conveying mechanism, a piston feeding mechanism, a first limiting mechanism, a copper sleeve screwing mechanism and a second limiting mechanism, and the conveying mechanism is arranged on the working table and used for conveying a push rod in the first direction; the piston feeding mechanism is arranged on the workbench and located on one side of the conveying mechanism. The piston feeding mechanism is used for connecting a piston to the push rod. The first limiting mechanism is arranged on the workbench and opposite to the piston feeding mechanism. The first limiting mechanism and the piston feeding mechanism are located on the two opposite sides of the conveying mechanism correspondingly. The copper sleeve screwing mechanism is arranged on the workbench and is spaced from the piston feeding mechanism in the first direction; the second limiting mechanism is arranged on the workbench and opposite to the copper sleeve screwing mechanism, the copper sleeve screwing mechanism and the second limiting mechanism are located on the two opposite sides of the conveying mechanism correspondingly, and the push rod assembling device can improve the assembling efficiency during production during batch assembling of push rods.

Description

Technical Field

[0001] This invention relates to the field of push rod assembly technology, and more specifically to a push rod assembly device. Background Technology

[0002] In related technologies, the push rod components of hydraulic cylinders are usually assembled manually to assemble the push rod with the piston and the copper sleeve. However, the efficiency of manual assembly is low when the push rods are assembled in batches. Therefore, how to improve the assembly efficiency of push rods in batch assembly is an urgent technical problem to be solved. Summary of the Invention

[0003] In view of the above-mentioned technical problems, the present invention provides a push rod assembly device to improve the assembly efficiency during the mass production of push rods, so as to at least partially solve the above-mentioned technical problems.

[0004] This invention provides a push rod assembly device, comprising: a worktable; a conveying mechanism disposed on the worktable, the conveying mechanism being used to convey a push rod along a first direction; a piston feeding mechanism disposed on the worktable and located on one side of the conveying mechanism, the piston feeding mechanism being used to connect a piston to the push rod; a first limiting mechanism disposed on the worktable and opposite to the piston feeding mechanism, the first limiting mechanism and the piston feeding mechanism being located on opposite sides of the conveying mechanism; a copper sleeve tightening mechanism disposed on the worktable and spaced apart from the piston feeding mechanism along the first direction; and a second limiting mechanism disposed on the worktable and opposite to the copper sleeve tightening mechanism, the copper sleeve tightening mechanism and the second limiting mechanism being located on opposite sides of the conveying mechanism.

[0005] Through the above technical solution, namely the push rod assembly device provided by the present invention, the conveying mechanism can convey the push rod along the first direction. When the push rod is conveyed between the piston feeding mechanism and the first limiting mechanism, one end of the push rod can be initially positioned by the first limiting mechanism. After the push rod is fixed, the piston can be connected to one end of the push rod by the piston feeding mechanism, thus initially completing the assembly of the push rod and the piston. After the push rod and the piston are assembled, the first limiting mechanism releases the clamp on the push rod and no longer limits the push rod. At this time, the push rod and the piston continue to move along the first direction together through the conveying mechanism. When the push rod and the piston are moved to the copper sleeve... When the push rod is positioned between the tightening mechanism and the second limiting mechanism, the second limiting mechanism can limit and fix one end of the push rod to reposition the push rod. After the push rod is fixed, the copper sleeve can be tightened onto the push rod by the copper sleeve tightening mechanism to achieve the assembly of the push rod and the copper sleeve. After the push rod and the copper sleeve are assembled, the second limiting mechanism no longer limits and fixes the push rod. The conveying mechanism drives the integrated body of the push rod, piston and copper sleeve to be conveyed out of the assembly station along the first direction. When the push rod is assembled in the above way, it can be fully automated by the assembly line, reducing the problem of low efficiency of manual assembly. Attached Figure Description

[0006] To more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present invention. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0007] Figure 1 This is a schematic diagram of the push rod assembly device provided in an exemplary embodiment of the present invention; Figure 2 for Figure 1 A magnified view of a portion of position A in the middle; Figure 3 for Figure 1 A magnified view of a portion of position B in the middle; Figure 4 This is a schematic diagram of the second angle of the push rod assembly device provided in an exemplary embodiment of the present invention; Figure 5 This is a structural schematic diagram of the push rod assembly device provided in an exemplary embodiment of the present invention from the third angle.

[0008] Explanation of reference numerals in the attached figures: 1. Workbench; 2. Conveying mechanism; 3. Piston feeding mechanism; 31. Piston conveyor line; 32. Third limiting mechanism; 33. Third lifting mechanism; 331. Second mounting bracket; 332. Lifting drive mechanism; 333. Mounting block; 334. Pin shaft; 34. First clamping mechanism; 35. Rotation mechanism; 351. Drive cylinder; 352. Rack; 36. Fourth lifting mechanism; 37. Second clamping mechanism; 4. First limiting mechanism; 41. Second fixing frame; 42. Drive mechanism; 43. Push plate; 5. Copper sleeve tightening mechanism; 6. Second limit mechanism; 61. Third mounting bracket; 62. Control cylinder; 63. Mounting plate; 64. Third clamping mechanism; 7. Caching mechanism; 8. First moving mechanism; 9. Second moving mechanism; 10. Third moving mechanism; 11. Support mechanism; 111. First fixed frame; 112. First mounting frame; 113. First lifting mechanism; 114. First support frame; 115. First V-block; 116. Support roller; 12. Shifting mechanism; 121. First Y-axis moving mechanism; 122. Second lifting mechanism; 123. Second support frame; 124. Second V-block. Detailed Implementation

[0009] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0010] This invention provides a push rod assembly device, with reference to... Figures 1 to 5As shown, the push rod assembly device includes a worktable 1, a conveying mechanism 2, a piston feeding mechanism 3, a first limiting mechanism 4, a copper sleeve tightening mechanism 5, and a second limiting mechanism 6. The conveying mechanism 2 is located on the worktable 1 and is used to convey the push rod along a first direction. The piston feeding mechanism 3 is located on the worktable 1 and on one side of the conveying mechanism 2, and is used to connect the piston to the push rod. The first limiting mechanism 4 is located on the worktable 1 and is opposite to the piston feeding mechanism 3, with the first limiting mechanism 4 and the piston feeding mechanism 3 located on opposite sides of the conveying mechanism 2. The copper sleeve tightening mechanism 5 is located on the worktable 1 and is spaced apart from the piston feeding mechanism 3 along the first direction. The second limiting mechanism 6 is located on the worktable 1 and is opposite to the copper sleeve tightening mechanism 5, with the copper sleeve tightening mechanism 5 and the second limiting mechanism 6 located on opposite sides of the conveying mechanism 2.

[0011] Through the above technical solution, namely the push rod assembly device provided by the present invention, the conveying mechanism 2 can convey the push rod along the first direction. When the push rod is conveyed between the piston feeding mechanism 3 and the first limiting mechanism 4, one end of the push rod can be initially positioned by the first limiting mechanism 4. After the push rod is fixed, the piston can be connected to one end of the push rod by the piston feeding mechanism 3, thus initially completing the assembly of the push rod and the piston. After the push rod and the piston are assembled, the first limiting mechanism 4 releases the clamp on the push rod and no longer limits the push rod. At this time, the push rod and the piston continue to move along the first direction together through the conveying mechanism 2. When the push rod and the piston are moved to the copper sleeve... When the screwing mechanism 5 and the second limiting mechanism 6 are in contact, the second limiting mechanism 6 can limit and fix one end of the push rod to reposition the push rod. After the push rod is fixed, the copper sleeve can be screwed onto the push rod by the copper sleeve screwing mechanism 5 to realize the assembly of the push rod and the copper sleeve. After the push rod and the copper sleeve are assembled, the second limiting mechanism 6 no longer limits and fixes the push rod. The conveying mechanism drives the integrated body of the push rod, piston and copper sleeve to be conveyed out of the assembly station along the first direction. When the push rod is assembled in the above way, it can be fully automated by the assembly line, reducing the problem of low efficiency of manual assembly.

[0012] It should be noted that the first direction mentioned in the above embodiments can be the extending direction of the conveying mechanism 2, i.e., as shown in the figure. Figure 1 As shown, the conveying mechanism 2 can be a guide rail structure extending in one direction. The direction of the guide rail extension can represent the first direction. To avoid ambiguity, the first direction will be explained in detail in this embodiment, and will not be repeated below.

[0013] Furthermore, the first limiting mechanism 4 and the second limiting mechanism 6 mentioned in the above embodiments can be any structure capable of limiting and fixing the push rod, such as a sleeve or a gripper. The first limiting mechanism 4 and the second limiting mechanism 6 will be described in detail below, and will not be elaborated on here.

[0014] In some implementations, reference Figures 1 to 5 As shown, the push rod assembly device also includes a first moving mechanism 8, a second moving mechanism 9, and a third moving mechanism 10 arranged at intervals on the worktable 1; the piston feeding mechanism 3 is connected to the first moving mechanism 8 and moves along a second direction perpendicular to the first direction through the first moving mechanism 8; the first limiting mechanism 4 and the second limiting mechanism 6 are connected to the second moving mechanism 9 and move along the second direction through the second moving mechanism 9; the copper sleeve tightening mechanism 5 is connected to the third moving mechanism 10 and moves along the second direction through the third moving mechanism 10.

[0015] In the above manner, the piston feeding mechanism 3 can move along the second direction via the first moving mechanism 8, and the first limiting mechanism 4 can move along the second direction via the second moving mechanism 9. When the two move closer to each other along the second direction, the operation of assembling the piston onto the push rod can be realized. The copper sleeve tightening mechanism 5 can move along the second direction via the third moving mechanism 10, and the second limiting mechanism 6 can move along the second direction via the second moving mechanism 9. When the two move closer to each other along the second direction, the operation of assembling the copper sleeve onto the push rod can also be realized.

[0016] The first moving mechanism 8, the second moving mechanism 9, and the third moving mechanism 10 mentioned in the above embodiments can be any device capable of driving the piston feeding mechanism 3, the first limiting mechanism 4, the second limiting mechanism 6, and the copper sleeve tightening mechanism 5 to move in the second direction. For example, they can be any suitable structure such as a conveyor belt or a drive wheel.

[0017] The second direction mentioned in the above embodiments can be a direction that is parallel to the surface of the worktable 1 and perpendicular to the first direction.

[0018] In some implementations, reference Figures 1 to 5As shown, the conveying mechanism 2 includes a support mechanism 11 symmetrically arranged on the left and right sides. The support mechanism 11 includes a first fixed frame 111, a first mounting frame 112 symmetrically arranged on the first fixed frame 111, a first lifting mechanism 113 arranged on the first mounting frame 112, a first support frame 114 connected to the first lifting mechanism 113, and a plurality of first V-shaped blocks 115 spaced apart on the first support frame 114 along a first direction. The first V-shaped blocks 115 at the beginning and end of the first support frame 114 in the first direction are provided with a plurality of support rollers 116. The first fixed frame 111 is connected to the workbench 1, the first mounting frame 112 is connected to the first fixed frame 111, the first lifting mechanism 113 is connected to the first mounting frame 112, and the first V-shaped blocks 115 are connected to the first support frame 114. One of the first fixed frames 111 is connected to the second moving mechanism 9.

[0019] In the above manner, the first V-block 115 can provide stable support for the push rod during the movement of the push rod or the assembly of the piston. The first lifting mechanism 113 can drive the first support frame 114 to lift and lower in the vertical direction, so that the push rod on the first V-block 115 can be more easily aligned with the piston feeding mechanism 3 or the copper sleeve tightening mechanism 5 during the piston assembly or copper sleeve assembly process. The multiple support rollers 116 can reduce the friction generated when the push rod is supported by the first V-block 115 and improve the service life of the first V-block 115. One of the first fixed frames 111 is connected to the second moving mechanism 9, which allows the push rod assembly device to be adapted to push rods of different lengths, so that push rods of different lengths can be assembled.

[0020] In some implementations, reference Figures 1 to 5 As shown, a shifting mechanism 12 is also provided between the two first fixed frames 111. The shifting mechanism 12 includes a first Y-axis moving mechanism 121, a second lifting mechanism 122 disposed on the front and rear sides of the first Y-axis moving mechanism 121, a second support frame 123 disposed on the second lifting mechanism 122, and a second V-shaped block 124 disposed on the second support frame 123. The first Y-axis moving mechanism 121 is connected to the first fixed frame 111, the second V-shaped block 124 is connected to the second support frame 123, and the second lifting mechanism 122 is connected to the second support frame 123.

[0021] In this manner, the shifting mechanism 12 is a key component for switching the push rod between the piston assembly station and the copper sleeve tightening station. The second V-block 124 can rise and fall vertically via the second lifting mechanism 122, and the first Y-axis moving mechanism 121 can drive the second V-block 124 to reciprocate along the first direction. Specifically, when the push rod is between the piston feeding mechanism 3 and the first limiting mechanism 4, and the piston has been assembled, the second V-block 124 can be driven by the first Y-axis moving mechanism 121... The push rod is moved to the same position as the first V-block 115 on the second direction projection. At this time, the second lifting mechanism 122 drives the second V-block 124 to rise. The push rod is no longer supported by the first V-block 115, but by the second V-block 124. The second V-block moves along the first direction through the first Y-axis moving mechanism 121. After the push rod moves between the copper sleeve tightening mechanism 5 and the second limiting mechanism 6, the second lifting mechanism 122 descends. At this time, the first V-block 115 is used to support the push rod, thus realizing the assembly of the push rod and the copper sleeve.

[0022] In some implementations, reference Figures 1 to 5 As shown, the piston feeding mechanism 3 includes a piston conveying line 31, a third limiting mechanism 32 disposed at the tail of the piston conveying line 31, a third lifting mechanism 33 disposed on the piston conveying line 31, a first clamping mechanism 34 connected to the third lifting mechanism 33, a fourth lifting mechanism 36 disposed on the third lifting mechanism 33, and a second clamping mechanism 37 connected to the fourth lifting mechanism 36. The second clamping mechanism 37 is disposed on the side close to the conveying mechanism 2. The third limiting mechanism 32 is connected to the piston conveying line 31. The third lifting mechanism 33 is connected to the first moving mechanism 8. The fourth lifting mechanism 36 is fixedly connected to the third lifting mechanism 33.

[0023] In the above manner, the piston conveyor line 31 can convey the piston, the third limiting mechanism 32 can limit the piston on the piston conveyor line 31, the first clamping mechanism 34 can move the piston clamped by the third limiting mechanism 32, the rotating mechanism 35 can rotate the piston from a horizontal state to a vertical state, and the second clamping mechanism 37 clamps the piston clamped by the first clamping mechanism 34 and then cooperates with the first limiting mechanism 4 to place it on the push rod; wherein, the third lifting mechanism 33 and the fourth lifting mechanism 36 can adjust the height of the first clamping mechanism 34 and the second clamping mechanism 37; the third limiting mechanism 32 is driven by a bidirectional cylinder to clamp the piston, and the third lifting mechanism 33 includes a second mounting bracket 331 and a lifting drive connected to the second mounting bracket 331. The mechanism 332 and the mounting block 333 connected to the lifting drive mechanism 332 are included. The first clamping mechanism 34 is rotatably mounted on the mounting block 333 via a pin 334. A gear is sleeved on one end of the pin 334 near the rotating mechanism 35. The rotating mechanism 35 includes a drive cylinder 351 arranged symmetrically on the upper and lower sides and a rack 352 connected to the drive cylinder 351. The racks 352 on the upper and lower sides mesh with the gears respectively. The second clamping mechanism 37 is driven by a bidirectional cylinder. The drive cylinder 351 controls the rack 352 to move. The rack 352 can drive the gear to rotate, which in turn can drive the pin 334 to rotate, thereby driving the first clamping mechanism 34 to rotate, which in turn drives the piston to rotate. It cooperates with the second clamping mechanism 37 to complete the transfer and handling of the piston, and then cooperates with the first limiting mechanism 4 to complete the assembly of the piston and the push rod.

[0024] The structure of the first limiting mechanism 4 is described in detail below. The first limiting mechanism 4 includes a second fixed frame 41, a drive mechanism 42 disposed on the second fixed frame 41, and a push plate 43 connected to the drive mechanism 42. The second fixed frame 41 is connected to the second moving mechanism 9, and the drive mechanism 42 is fixedly installed on the second fixed frame 41. The drive mechanism 42 can control the movement of the push plate 43, and the push plate 43 can limit one end of the push rod.

[0025] The structure of the second limiting mechanism 6 is described in detail below. The second limiting mechanism 6 includes a third mounting frame 61, a control cylinder 62 mounted on the third mounting frame 61, a mounting plate 63 connected to the control cylinder 62, and third clamping mechanisms 64 symmetrically arranged on the front and rear sides of the mounting plate 63. The control cylinder 62 is fixedly mounted on the third mounting frame 61, and the third clamping mechanisms 64 are fixedly mounted on the mounting plate 63. The third clamping mechanisms 64 on both sides clamp one side of the lifting lug on the push rod, and the copper sleeve tightening mechanism 5 completes the tightening operation of the copper sleeve.

[0026] The push rod assembly device also includes a buffer mechanism 7 connected to the tail end of the conveying mechanism 2. The buffer mechanism 7 can store the assembled push rods and also facilitates the removal of the assembled push rods by the staff.

[0027] Although embodiments of the present invention have been described in conjunction with the accompanying drawings, those skilled in the art can make various modifications and variations without departing from the spirit and scope of the present invention, and such modifications and variations all fall within the scope of protection claimed by the present invention.

Claims

1. A push rod assembly device, characterized in that, include: Workbench (1); A conveying mechanism (2) is provided on the workbench (1), and the conveying mechanism (2) is used to convey push rods along a first direction; The piston feeding mechanism (3) is located on the workbench (1) and on one side of the conveying mechanism (2). The piston feeding mechanism (3) is used to connect the piston to the push rod. The first limiting mechanism (4) is provided on the workbench (1) and is opposite to the piston feeding mechanism (3). The first limiting mechanism (4) and the piston feeding mechanism (3) are respectively located on opposite sides of the conveying mechanism (2). The copper sleeve tightening mechanism (5) is located on the worktable (1) and is arranged at intervals from the piston feeding mechanism (3) along the first direction; The second limiting mechanism (6) is located on the worktable (1) and is opposite to the copper sleeve tightening mechanism (5). The copper sleeve tightening mechanism (5) and the second limiting mechanism (6) are located on opposite sides of the conveying mechanism (2).

2. The push rod assembly device according to claim 1, characterized in that, The push rod assembly device further includes a first moving mechanism (8), a second moving mechanism (9) and a third moving mechanism (10) arranged at intervals on the worktable (1). The piston feeding mechanism (3) is connected to the first moving mechanism (8) and moves along a second direction perpendicular to the first direction through the first moving mechanism (8); The first limiting mechanism (4) and the second limiting mechanism (6) are connected to the second moving mechanism (9) and move along the second direction through the second moving mechanism (9); The copper sleeve tightening mechanism (5) is connected to the third moving mechanism (10) and moves along the second direction through the third moving mechanism (10).

3. The push rod assembly device according to claim 2, characterized in that, The conveying mechanism (2) includes a support mechanism (11) symmetrically arranged on the left and right sides. The support mechanism (11) includes a first fixed frame (111), a first mounting frame (112) symmetrically arranged on the first fixed frame (111), a first lifting mechanism (113) arranged on the first mounting frame (112), a first support frame (114) connected to the first lifting mechanism (113), and a plurality of first V-shaped blocks (115) spaced apart on the first support frame (114) along the first direction. The first support frame (114) has a plurality of support rollers (116) in the first V-shaped blocks (115) at the beginning and end of the first direction. The first fixed frame (111) is connected to the workbench (1), the first mounting frame (112) is connected to the first fixed frame (111), the first lifting mechanism (113) is connected to the first mounting frame (112), and the first V-shaped blocks (115) are connected to the first support frame (114). One of the first fixed frames (111) is connected to the second moving mechanism (9).

4. The push rod assembly device according to claim 3, characterized in that, A shifting mechanism (12) is also provided between the two first fixed frames (111). The shifting mechanism (12) includes a first Y-axis moving mechanism (121), a second lifting mechanism (122) disposed on the front and rear sides of the first Y-axis moving mechanism (121), a second support frame (123) disposed on the second lifting mechanism (122), and a second V-block (124) disposed on the second support frame (123). The first Y-axis moving mechanism (121) is connected to the first fixed frame (111), the second V-block (124) is connected to the second support frame (123), and the second lifting mechanism (122) is connected to the second support frame (123).

5. The push rod assembly device according to claim 2, characterized in that, The piston feeding mechanism (3) includes a piston conveying line (31), a third limiting mechanism (32) disposed at the tail of the piston conveying line (31), a third lifting mechanism (33) disposed on the piston conveying line (31), a first clamping mechanism (34) connected to the third lifting mechanism (33), a fourth lifting mechanism (36) disposed on the third lifting mechanism (33), and a second clamping mechanism (37) connected to the fourth lifting mechanism (36). The second clamping mechanism (37) is disposed on one side close to the conveying mechanism (2). The third limiting mechanism (32) is connected to the piston conveying line (31). The third lifting mechanism (33) is connected to the first moving mechanism (8). The fourth lifting mechanism (36) is fixedly connected to the third lifting mechanism (33).

6. The push rod assembly device according to claim 5, characterized in that, The third limiting mechanism (32) is constructed as a two-way cylinder. The third lifting mechanism (33) includes a second mounting bracket (331), a lifting drive mechanism (332) connected to the second mounting bracket (331), and a mounting block (333) connected to the lifting drive mechanism (332). The first clamping mechanism (34) is rotatably connected to the mounting block (333) via a pin (334). A gear is sleeved on one end of the pin (334) near the rotating mechanism (35).

7. The push rod assembly device according to claim 6, characterized in that, The rotating mechanism (35) includes a drive cylinder (351) arranged symmetrically on the upper and lower sides, and a rack (352) connected to the drive cylinder (351). The rack (352) on the upper and lower sides respectively meshes with the gear. The second clamping mechanism (37) is driven by a bidirectional cylinder.

8. The push rod assembly device according to claim 2, characterized in that, The first limiting mechanism (4) includes a second fixed frame (41), a driving mechanism (42) connected to the second fixed frame (41), and a push plate (43) connected to the driving mechanism (42). The second fixed frame (41) is connected to the second moving mechanism (9), and the driving mechanism (42) is fixedly connected to the second fixed frame (41).

9. The push rod assembly device according to claim 1, characterized in that, The second limiting mechanism (6) includes a third mounting bracket (61), a control cylinder (62) disposed on the third mounting bracket (61), a mounting plate (63) connected to the control cylinder (62), and a third clamping mechanism (64) symmetrically disposed on the front and rear sides of the mounting plate (63). The control cylinder (62) is fixedly mounted on the third mounting bracket (61), and the third clamping mechanism (64) is fixedly mounted on the mounting plate (63).

10. The push rod assembly device according to claim 1, characterized in that, The push rod assembly device also includes a buffer mechanism (7) connected to the tail end of the conveying mechanism (2).

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