A nut mounting device suitable for industrial vehicle push rod fork

Abstract

The present invention relates to the field of automated mechanical equipment, and in particular to a nut installation device suitable for an industrial vehicle push rod fork. The present invention is achieved through the following technical solutions: A nut installation device suitable for an industrial vehicle push rod fork, comprising a frame, wherein the frame comprises a working machine; further comprising: a feeding device, wherein the feeding device comprises a feeding bracket for fixing the push rod fork and a lifter for driving the feeding bracket to rise and fall; a rotating device, wherein the rotating device is connected to a transmission shaft, wherein the transmission shaft is used to connect a nut; a driving device, wherein the driving device is used to drive the rotating device to rotate; and a spacer sleeve, wherein a matching groove is provided on the spacer sleeve, wherein the push rod fork rises and falls in the matching groove. The purpose of the present invention is to provide a nut installation device suitable for an industrial vehicle push rod fork, which has a low degree of manual dependence, high efficiency in installation, high degree of automation, and a stable and reliable installation process with good safety.

Description

Technical Field

[0001] The invention relates to the field of automated mechanical equipment, and in particular to a nut mounting device suitable for a push rod fork of an industrial vehicle. Background Art

[0002] Industrial vehicles refer to power-driven motor vehicles used to transport, push, pull, lift, stack or stack various goods. Common industrial vehicles include forklifts, side forklifts, tractors, transporters, stackers and so on.

[0003] Industrial vehicles, such as transport trucks, include a push rod fork component, and a screw is provided at the bottom of the push rod fork. During the installation process, a nut needs to be installed on the screw. In the prior art, workers often rely on manual installation of the nut, but there are disadvantages of low efficiency and high labor intensity for workers.

[0004] The Chinese patent document with publication number CN201810930270.0 discloses a handheld semi-automatic rivet nut gun. The worker holds the nut gun and drives the nut to rotate, thereby completing the connection between the nut and the push rod fork. Such a technical solution does improve the efficiency of nut installation, but on the one hand, the efficiency improvement is limited, and it often still requires two workers to cooperate in the operation. In addition, excessive rotation of the nut will cause damage to the parts. Thirdly, due to the low guidance of this operation method, the nut is easy to fly out when rotating, causing injury. Summary of the invention

[0005] The purpose of the present invention is to provide a nut installation device suitable for an industrial vehicle push rod fork, which has low manual dependence, high installation efficiency, high automation, stable and reliable installation process and good safety.

[0006] The above technical objectives of the present invention are achieved through the following technical solutions: A nut installation device suitable for an industrial vehicle push rod fork comprises a frame, wherein the frame comprises a working machine; and further comprises:

[0007] A feeding device, the feeding device comprising a feeding bracket for fixing the push rod fork and a lifter for driving the feeding bracket to rise and fall;

[0008] A rotating device, the rotating device is connected to a transmission shaft, and the transmission shaft is used to connect a nut;

[0009] A driving device, the driving device is used to drive the rotating device to rotate;

[0010] A spacer sleeve, wherein a matching groove is formed on the spacer sleeve, and the push rod fork is raised and lowered in the matching groove;

[0011] The transmission shaft is located below the spacer.

[0012] As a preferred embodiment of the present invention, the rotating device includes a rotating wheel and a transmission seat connected to the transmission shaft, the rotating wheel is provided with an upper groove, the transmission seat is provided with a lower groove, and a transmission bead is provided at the through connection between the upper groove and the lower groove, and the transmission wheel is connected to the driving device.

[0013] As a preferred embodiment of the present invention, it further comprises an adjusting member for adjusting the position of the transmission ball in the upper groove and the lower groove.

[0014] As a preferred embodiment of the present invention, the adjusting member comprises a spring and an adjusting screw, the spring and the adjusting screw are both installed in the lower groove, and the transmission bead is placed on the upper end of the spring.

[0015] As a preferred embodiment of the present invention, each of the rotating wheels is provided with two belt fixing grooves, and a belt is installed in each of the belt fixing grooves.

[0016] As a preferred embodiment of the present invention, a limiting abutment surface is provided at the lower end of the matching groove for preventing the push rod fork from continuing to descend.

[0017] As a preferred embodiment of the present invention, the feeding device includes a feeding hanging plate, the feeding hanging plate extends in the horizontal direction, one end of the lifter is installed on the frame, and the other end is connected to the feeding hanging plate, and the feeding bracket is installed on the feeding hanging plate.

[0018] As a preferred embodiment of the present invention, the feeding bracket is provided with an electromagnet for adsorbing the push rod fork.

[0019] As a preferred embodiment of the present invention, there are multiple feeding brackets, which are commonly connected to the feeding hanging plate.

[0020] As a preferred embodiment of the present invention, the rotating device, the transmission shaft and the spacer sleeve are all multiple sets, which are installed on the frame.

[0021] As a preferred embodiment of the present invention, the transmission shaft includes a nut fixing portion and a transmission connecting portion below, the nut fixing portion is used to wrap the nut, and the movable connecting portion is connected to the transmission seat.

[0022] As a preferred embodiment of the present invention, the transmission shaft is installed in the inner cavity of the spacer sleeve and the rotating device.

[0023] In summary, the present invention has the following beneficial effects:

[0024] 1. This equipment can be equipped with multiple workstations to install the nuts of multiple push rod forks in one operation, which is convenient and quick.

[0025] 2. Due to the difference of products, the model and size of the push rod fork, the model and size of the nut, and the screw-in length of the upper nut will also be different. These can be adjusted by changing the spacer, which has good adaptability.

[0026] 3. A matching groove is provided on the spacer sleeve, and when the push rod fork descends, it is embedded in the matching groove. By changing the depth of the notch on the matching groove, the screw-in angle of the nut can be precisely controlled, and the screw-in length of each push rod fork can be ensured to be uniform.

[0027] 4. After the nut is placed in the transmission shaft, the push rod fork enters the spacer sleeve under the action of its own weight. At the same time, it can also have a certain compression effect on the nut under the action of its own weight to prevent the nut from flying out.

[0028] 5. The electromagnet can tightly absorb the push rod fork onto the loading bracket to prevent the push rod fork from falling off from the loading bracket when loading, screwing nuts and unloading. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 is a schematic diagram of embodiment 1;

[0030] Figure 2 It is a three-dimensional schematic diagram of the rotating device and the spacer;

[0031] Figure 3 yes Figure 2 Side cross-sectional view of .

[0032] In the figure:

[0033] 1. Frame, 11. Workbench, 2. Driving device, 3. Rotating device, 31. Rotating wheel, 311. Belt fixing groove, 32. Belt, 33. Transmission seat, 34. Transmission bead, 4. Feeding device, 41. Lifting device, 42. Feeding hanging plate, 43. Guide rail, 44. Feeding bracket, 5. Spacer, 51. Matching groove, 6. Transmission shaft, 61. Nut fixing part, 62. Transmission connecting part, 7. Adjusting part, 71. Spring, 72. Adjusting screw, 91. Push rod fork. DETAILED DESCRIPTION

[0034] The present invention is further described in detail below in conjunction with the accompanying drawings.

[0035] This specific embodiment is merely an explanation of the present invention and is not a limitation of the present invention. After reading this specification, those skilled in the art may make non-creative modifications to the present embodiment as needed. However, as long as they are within the scope of the claims of the present invention, they are protected by the patent law.

[0036] Embodiment 1, as Figure 1As shown, it includes a frame 1, which is on the ground and includes a workbench 11, which extends in the horizontal direction. A feeding device is provided above the workbench 11. Specifically, the feeding device 4 includes two guide rails 43. A feeding hanging plate 42 extends in the horizontal direction, and its two ends are sleeved on the guide rails 43, and is driven by a jacking device 41 to rise and fall, that is, to move closer to and away from the workbench 11. The jacking device 41 can adopt common driving components such as oil cylinders, air cylinders, and motors in the prior art.

[0037] A plurality of feeding brackets 44 are mounted on the feeding hanging plate 42. Figure 1 It is shown as 4. The user can adjust the number of workstations according to the specific situation. Each feeding bracket 44 is equipped with a push rod fork 91. The feeding bracket 44 is provided with an electromagnet. When the electromagnet is turned on, the electromagnet absorbs the push rod fork 91 to prevent the push rod fork 91 from slipping.

[0038] A drive device 2 is mounted on the frame 1. The drive device 2 may include a common drive structure such as a motor and a reducer. Figure 2 The belt 32 is connected to the rotating wheel 31, and the belt 32 is pulled to drive the rotating wheel 31 to rotate. The rotating wheel 31 is a double-groove rotating wheel, comprising two fixed belt grooves 311, so that power can be driven to another adjacent rotating wheel 31.

[0039] After the rotating wheel 31 rotates, Figure 3 As shown, the transmission seat 33 below it is also driven to rotate. Specifically, the rotating wheel 31 and the transmission seat 33 below each include a groove, and a transmission bead 34 is provided in the middle of the two components. A thread is installed in the groove of the transmission seat 33, and an adjustment screw 72 is screwed thereon. The adjustment screw 72 is provided with a spring 71, and the spring 71 supports the transmission bead 34. The user can adjust the height position of the transmission bead 34 by turning the adjustment screw 72. The transmission bead 34 acts as a transmission medium, which transmits the rotation of the rotating wheel 31 to the transmission seat 33, so that the transmission seat 33 also rotates.

[0040] The spacer 5 and the rotating device 3 are both provided with a hollow inner cavity extending in the vertical direction. The transmission shaft 6 is installed in the hollow inner cavity. Specifically, the transmission shaft 6 is connected with the inner cavity of the transmission seat 33, and the inner cavity of the rotating wheel 31 can be opened wider and does not contact the outer wall of the transmission shaft 6, that is, the rotation of the transmission shaft 6 comes from the rotation of the transmission seat 33.

[0041] The transmission shaft 6 may include two parts, namely, a transmission connection part 62 connected to the transmission seat 33 at the lower part and a nut fixing part 61 at the upper part. The nut fixing part 61 is provided with an accommodating cavity, and the shape and diameter of the accommodating cavity are matched with the diameter, shape and size of the nut to be installed.

[0042] In the actual production process, the user only needs to simply install the nut on the push rod fork 91 and simply rotate it a few times to prevent the nut from falling off. Then start the device. The jack 41 drives the feeding bracket 44 to descend, and the push rod fork 72 to descend.

[0043] like Figure 1 and Figure 2 As shown, a plurality of spacers 5 are mounted on the workbench 11. The spacers 5 are provided with matching grooves 51, which extend in the vertical direction. Such a design enables the push rod fork 91 to descend into the spacers 5, while the spacers 5 do not rotate and are stationary parts.

[0044] As mentioned above, the transmission shaft 6 rotates. As the push rod fork 91 continues to descend, the nut sleeved on the push rod fork 91 contacts the transmission shaft 6. The nut is stuck in the nut fixing portion 61. Under the rotation of the nut fixing portion 61, the nut starts to rotate relative to the push rod fork 91, and this is a process of the upper nut screwing the nut.

[0045] At this time, the nut rotates on the push rod fork 91, while the height position of the nut itself remains unchanged, and the relative height change between the two is achieved by the continued descent of the jacking device 41.

[0046] In this case, the matching groove 51 on the spacer 5 has a certain groove depth, and a limit contact surface is provided below it. When the push rod fork 91 is lowered, it is resisted by the limit contact surface and cannot continue to lower. This action blocks the rotation of the nut, thereby blocking the rotation of the transmission seat 33 through the transmission shaft 6.

[0047] At this time, the rotating wheel 31 rotates normally under the drive of the driving device 2, but the transmission seat 33 has been blocked from rotating as described above, so there is a relative rotation between the rotating wheel 31 and the transmission seat 33. This relative rotation makes Figure 3 The transmission bead 34 in the transmission seat 33 is pressed down, overcoming the spring force and entering the groove in the transmission seat 33. As the transmission bead 34 is pressed down, the transmission seat 33 is pulled away from the rotating wheel 31, no longer receiving power transmission, and naturally really stops rotating.

[0048] At this point, the nut has been installed on the push rod fork 91 .

[0049] A sensor, such as a mechanical contact type rotation sensor, can be installed on the frame 1. Such sensors can be directly purchased on the market and will not be described in detail herein. The sensor is used to sense the rotation of the transmission seat 33. When the transmission seat 33 stops rotating, it is determined that the installation is completed, the driving device 2 stops running, the lifting device 41 lifts the feeding hanging plate 42, and the electromagnet on the loading bracket 44 is turned off to facilitate unloading.

[0050] At this point, the entire loading, nut installation, installation stop, and unloading process runs smoothly, with low labor requirements and high automation efficiency.

[0051] In addition to the installation method described above, the worker can also first open the drive device 2, rotate the transmission shaft 6, open the jacking device 41, and also jack up the feeding hanging plate 42.

[0052] Then, put the nut into the transmission shaft 6, hang the push rod fork 91 on the feeding bracket 44, the electromagnet is energized, the push rod fork is sucked firmly, and then the jacking device 41 is controlled to descend, and the feeding hanging plate 42 drops down with the push rod fork 91. The subsequent steps are the same as the method described above.

[0053] This equipment can be equipped with multiple workstations, and the nuts of multiple push rod forks 91 can be installed in one operation, which is convenient and quick.

[0054] Due to the difference in products, the model and size of the push rod fork 91, the model and size of the nut, and the screw-in length of the upper nut may also be different, and these can be adjusted by changing the spacer 5, with good adaptability.

[0055] The spacer 5 is provided with a matching groove 51, and when the push rod fork 91 descends, it is just embedded in the matching groove 51. By changing the depth of the notch on the matching groove 51, the nut screwing-in angle can be accurately controlled, and the screwing-in length of each push rod fork can be ensured to be uniform.

[0056] After the nut is placed in the transmission shaft 6, the push rod fork 91 enters the spacer sleeve 5 under the action of its own weight, and at the same time, it can also have a certain compression effect on the nut under the action of its own weight, so as to prevent the nut from flying out.

[0057] The electromagnet can tightly absorb the push rod fork 91 onto the loading bracket 44 to prevent the push rod fork 91 from falling off from the loading bracket 44 during loading, screwing the nut and unloading.

Claims

1. A nut mounting device for a push rod fork of an industrial vehicle, comprising a frame (1), characterized in that: The frame (1) includes a working machine (11); it also includes: a loading device (4), the loading device (4) includes a loading bracket (44) for fixing a push rod fork (91) and a lifter (41) for driving the loading bracket (44) to rise and fall; a rotating device (3), the rotating device (3) is connected to a transmission shaft (6), and the transmission shaft (6) is used to connect a nut; a driving device (2), the driving device (2) is used to drive the rotating device (3) to rotate; a spacer (5), the spacer (5) is provided with a matching groove (51), and the push rod fork (91) rises and falls in the matching groove (51); The transmission shaft (6) is located below the spacer (5); the rotating device (3) comprises a rotating wheel (31) and a transmission seat (33) connected to the transmission shaft (6); the rotating wheel (31) is provided with an upper groove; the transmission seat (33) is provided with a lower groove; a transmission bead (34) is provided at a through connection between the upper groove and the lower groove; the rotating wheel (31) is connected to the driving device (2) and further comprises an adjusting member (7) for adjusting the position of the transmission bead (34) in the upper groove and the lower groove; the adjusting member (7) comprises a spring (71) and an adjusting screw (72); the spring (71) and the adjusting screw (72) They are all installed in the lower groove, the transmission bead (34) is placed on the upper end of the spring (71), and the lower end of the matching groove (51) is provided with a limit contact surface for preventing the push rod fork (91) from continuing to descend. It also includes a rotation sensor, which is installed on the frame (1) and is used to sense the rotation state of the transmission seat (33). When it is sensed that the transmission seat (33) stops rotating, the driving device (2) stops running, and the lifting device (41) drives the loading bracket (44) to rise. Two belt fixing grooves (311) are provided on each of the rotating wheels (31), and a belt (32) is installed in each of the belt fixing grooves (311).

2. A nut mounting device for a push rod fork of an industrial vehicle according to claim 1, characterized in that: The feeding device (4) comprises a feeding hanging plate (42), wherein the feeding hanging plate (42) extends in a horizontal direction, one end of the lifter (41) is mounted on the frame (1), and the other end is connected to the feeding hanging plate (42), and the feeding bracket (44) is mounted on the feeding hanging plate (42).

3. A nut mounting device for a push rod fork of an industrial vehicle according to claim 2, characterized in that: The loading bracket (44) is provided with an electromagnet for adsorbing the push rod fork (91).

4. A nut mounting device for a push rod fork of an industrial vehicle according to claim 2, characterized in that: There are a plurality of feeding brackets (44), which are commonly connected to the feeding hanging plate (42).

5. A nut mounting device for a push rod fork of an industrial vehicle according to claim 1, characterized in that: The rotating device (3), the transmission shaft (6) and the spacer sleeve (5) are all multiple sets and are installed on the frame (1).

6. A nut mounting device for a push rod fork of an industrial vehicle according to claim 1, characterized in that: The transmission shaft (6) comprises a nut fixing portion (61) and a transmission connection portion (62) below, wherein the nut fixing portion (61) is used to wrap the nut, and the movable connection portion (62) is connected to the transmission seat (33).

7. A nut mounting device for a push rod fork of an industrial vehicle according to claim 6, characterized in that: The transmission shaft (6) is installed in the inner cavity of the spacer (5) and the rotating device (3).

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