Pallet fork center alignment detection device for laser forklift

Abstract

The utility model discloses a pallet fork center alignment detection device used for a laser forklift, which belongs to the forklift assembling field and comprises a fixed support, a measuring reference center line is arranged on the fixed support, two bearing assemblies are symmetrically installed on the fixed support along the measuring reference center line, a lead screw assembly is installed on the two bearing assemblies, and the lead screw assembly is arranged on the fixed support. The lead screw assembly comprises a left-handed lead screw and a right-handed lead screw which synchronously stretch out and draw back in the direction of the vertical line of the center line of the fixing support. Through the measuring reference center line arranged on the fixing support and the two bearing assemblies and the lead screw assemblies which are symmetrically installed, the left-handed lead screw and the right-handed lead screw synchronously stretch out or retract, the center position is not changed, the left-handed lead screw and the right-handed lead screw stretch out to be pressed against the inner side face of the inner portal, and then the center line of the inner portal can be found out. And the centering work of the center position can be accurately carried out when the pallet fork is assembled, and the precision and efficiency in the assembling process are improved.

Description

Technical Field

[0001] The utility model belongs to the field of forklift assembly, and in particular relates to a fork center alignment detection device for a laser forklift. Background Art

[0002] When the fork assembly of the laser forklift is assembled on the forklift, the center of the fork is required to be consistent with the center of the inner mast. At the same time, the side rollers of the left and right composite rollers of the fork are at the same distance from the inner mast. In this way, the fork will not get stuck or wear the inner mast during assembly operations, thereby ensuring stable and reliable operation of the fork.

[0003] In the prior art, for example, Chinese patent publication number CN117023089A discloses a fork assembly line capable of flipping forks. The line includes a conveying mechanism, a flipping mechanism, and a stacking mechanism. The conveying mechanism drives the forks forward, allowing manual assembly during the forward movement. A first flipping assembly in the flipping mechanism flips the forks from their first side facing upward to their second side facing upward. This allows assembly of the first side first, followed by the second side. After assembly of the second side is complete, the second flipping assembly in the flipping mechanism flips the forks from their second side facing upward to their first side facing upward, facilitating subsequent stacking by the stacking mechanism. However, the patent does not disclose a solution for centering the forks during assembly.

[0004] Moreover, the inner mast is usually made by welding. Due to the influence of welding deformation, there will be a certain dimensional deviation in the inner width of the inner masts of the same batch. In order to ensure that the center position of the inner mast and the fork is consistent, the operator needs to measure the inner width of each inner mast, calculate the distance of its center line position, and then measure the distance between the reference surface at both ends of the fork and the center line of the inner mast. The calculated difference is used to determine whether the center line of the fork coincides with the center line of the inner mast. The risk of using this operation method is relatively large. If the measurement or calculation is slightly inaccurate, deviation will occur, and the operating efficiency will also be very low.

[0005] In view of this, this application is hereby filed. Utility Model Content

[0006] The technical problem to be solved by the present invention is to overcome the shortcomings of the existing technology and provide a fork center alignment detection device for a laser forklift. The present invention is achieved through the following technical solutions:

[0007] A fork center alignment detection device for a laser forklift includes a fixed bracket, a measurement reference center line is provided on the fixed bracket, two bearing assemblies are symmetrically installed on the fixed bracket along the measurement reference center line, and a screw assembly is installed on the two bearing assemblies. The screw assembly includes a left-hand screw and a right-hand screw that can synchronously extend and retract along the perpendicular direction of the center line of the fixed bracket.

[0008] The screw assembly also includes a bidirectional wire lever, and a guide assembly is fixedly mounted on the bearing assembly. The left-hand screw and the right-hand screw slide back and forth along the guide assembly, and the guide assembly also limits the left-hand screw and the right-hand screw from rotating along the axis direction of the screw assembly;

[0009] The left-hand screw is provided with a left-hand external thread, and the right-hand screw is provided with a right-hand external thread. One end of the bidirectional wire lever is a left-hand internal thread, which cooperates with the left-hand external thread on the left-hand screw, and the other end is a right-hand internal thread, which cooperates with the right-hand external thread on the right-hand screw.

[0010] Preferably, the perpendicular bisector of the screw assembly coincides with the measurement reference centerline.

[0011] Preferably, the bearing assembly comprises a bearing seat, a bearing and a retaining ring;

[0012] The bearing is fixed to the bearing seat via a retaining ring;

[0013] The lower part of the bearing seat is provided with a long hole and a positioning pin hole, the upper part is provided with a guide component mounting hole and a threaded hole, and the middle part is provided with a bearing mounting hole for assembling the bearing.

[0014] Preferably, both ends of the bidirectional wire lever are respectively mounted on two bearings.

[0015] Preferably, an installation positioning hole is provided on the fixing bracket based on the measurement reference center line, and the bearing seat is positioned to the installation positioning hole by a positioning pin. The bearing assembly also includes a fastening bolt, and the bearing seat is fixed to the fixing bracket by the fastening bolt.

[0016] Preferably, two triangular reference notches are opened at the center line of the fixing bracket, and the line connecting the two reference notches forms the measurement reference center line;

[0017] The two side surfaces of the fixing bracket parallel to the measurement reference center line are measurement reference surfaces, and the measurement reference surfaces are symmetrically arranged along the measurement reference center line.

[0018] Compared with the prior art, the beneficial effects of the present invention are:

[0019] 1. By setting the measuring reference center line on the fixed bracket and the two symmetrically installed bearing assemblies and screw assemblies, the left-hand screw and the right-hand screw are extended or retracted synchronously, and the center position does not change. The left-hand screw and the right-hand screw are extended and pressed against the inner side of the inner mast to find the center line of the inner mast. The center position can be accurately aligned when assembling the fork, which improves the accuracy and efficiency of the assembly process.

[0020] 2. By adding a bidirectional wire lever and guide component design, the screw assembly can move smoothly under the guidance of the guide component and avoid unnecessary rotational motion, thereby ensuring the stability and accuracy of the alignment detection and simplifying the operation process.

[0021] 3. By aligning the perpendicular midline of the screw assembly with the centerline of the measurement reference, the directness and consistency of the fork center alignment are ensured, the error caused by structural deviation is reduced, and the reliability of the alignment detection is further improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a structural diagram of the utility model;

[0023] Figure 2 It is a main schematic diagram of the utility model;

[0024] Figure 3 It is a top view schematic diagram of the utility model;

[0025] Figure 4 yes Figure 3 Schematic diagram of the cross-section at AA

[0026] Figure 5 It is a structural schematic diagram of the fixing bracket of the utility model;

[0027] Figure 6 This is a structural diagram of the bearing seat of the utility model;

[0028] Figure 7 This is a schematic diagram of the use state of the utility model.

[0029] In the figure: 1. Fixed bracket; 2. Bearing assembly; 3. Screw assembly; 4. Guide assembly; 5. Fastening bolts; 6. Locating pin; 11. Measuring reference surface; 12. Measuring reference center line; 21. Bearing seat; 22. Bearing; 23. Retaining ring; 211. Long hole; 212. Locating pin hole; 213. Guide assembly mounting hole; 214. Threaded hole; 215. Bearing mounting hole; 31. Left-hand screw; 32. Right-hand screw; 33. Bidirectional screw lever; 41. Mounting plate; 42. Guide shaft; 43. Locating pin shaft; 44. Gasket; 45. Split pin; 46. Tighten bolts. DETAILED DESCRIPTION

[0030] The present invention will be further described below with reference to the accompanying drawings.

[0031] like Figure 1 – Figure 7 As shown, this embodiment provides a fork center alignment detection device for a laser forklift, including a fixed bracket 1, on which a measurement reference center line 12 is provided, and two bearing assemblies 2 are symmetrically installed on the fixed bracket 1 along the measurement reference center line 12, and a screw assembly 3 is installed on the two bearing assemblies 2, and the screw assembly 3 includes a left-handed screw 31 and a right-handed screw 32 that can synchronously extend and retract along the perpendicular direction of the center line of the fixed bracket 1.

[0032] By setting the measuring reference center line 12 on the fixed bracket 1 and the two symmetrically installed bearing assemblies 2 and the screw assembly 3, the left-hand screw 31 and the right-hand screw 32 are extended or retracted synchronously, and the center position will not change. By extending the left-hand screw 31 and the right-hand screw 32 and pressing them against the inner side of the inner mast, the center line of the inner mast can be found, which will enable the center position to be accurately aligned when assembling the fork, thereby improving the accuracy and efficiency of the assembly process.

[0033] The screw assembly 3 also includes a bidirectional wire lever 33, and a guide assembly 4 is fixedly mounted on the bearing assembly 2. The left-handed screw 31 and the right-handed screw 32 slide back and forth along the guide assembly 4, and the guide assembly 4 also limits the left-handed screw 31 and the right-handed screw 32 from rotating along the axial direction of the screw assembly 3.

[0034] The left-handed screw 31 is provided with a left-handed external thread, and the right-handed screw 32 is provided with a right-handed external thread. One end of the bidirectional wire lever 33 is a left-handed internal thread, which cooperates with the left-handed external thread on the left-handed screw 31, and the other end is a right-handed internal thread, which cooperates with the right-handed external thread on the right-handed screw 32.

[0035] By adding the design of a bidirectional wire lever 33 and a guide component 4, the screw assembly 3 can move smoothly under the guidance of the guide component 4 and avoid unnecessary rotational movement, thereby ensuring the stability and accuracy of the alignment detection and simplifying the operation process.

[0036] The perpendicular midline of the screw assembly 3 coincides with the measurement reference centerline 12. By aligning the perpendicular midline of the screw assembly with the measurement reference centerline, directness and consistency in fork center alignment are ensured, errors caused by structural deviations are reduced, and the reliability of alignment detection is further improved.

[0037] The bearing assembly 2 includes a bearing seat 21, a bearing 22 and a retaining ring 23. The bearing 22 is fixed to the bearing seat 21 through the retaining ring 23. The lower part of the bearing seat 21 is provided with a long hole 211 and a positioning pin hole 212, the upper part is provided with a guide assembly mounting hole 213 and a threaded hole 214, and the middle part is provided with a bearing mounting hole 215 for assembling the bearing 22.

[0038] Preferably, the two ends of the bidirectional wire lever 33 are respectively mounted on two bearings 22. The connection design of the bidirectional wire lever 33 and the bearing 22 ensures uniform transmission of force, helps to improve the response speed and stability of the system, and enhances the working performance of the entire detection device.

[0039] The fixing bracket 1 is provided with an installation positioning hole based on the measurement reference center line 12. The bearing seat 21 is positioned to the installation positioning hole after the positioning pin 6 passes through the positioning pin hole 212. The bearing assembly 2 also includes a fastening bolt 5. The bearing seat 21 is fixed to the fixing bracket 1 after the fastening bolt 5 passes through the long hole 211.

[0040] Two triangular reference notches are opened at the center line of the fixing bracket 1 , and the line connecting the two reference notches forms a measurement reference center line 12 .

[0041] The two side surfaces of the fixing bracket 1 parallel to the measurement reference center line 12 are measurement reference surfaces 11 , and the measurement reference surfaces 11 are symmetrically arranged along the measurement reference center line 12 .

[0042] Furthermore, both the left-hand screw 31 and the right-hand screw 32 are provided with directional pin holes, and the guide assembly 4 includes a mounting plate 41 , a guide shaft 42 and a positioning pin 43 , and the mounting plate 41 is slidably arranged relative to the guide shaft 42 .

[0043] A screw mounting hole is provided in the middle of the mounting plate 41, a guide shaft mounting hole is provided in the upper part, and a positioning pin hole is provided on the side. After the positioning pin 43 passes through the positioning pin hole on the side of the mounting plate 41 and the positioning pin hole of the left-handed screw 31 or the right-handed screw 32, a gasket 44 and a cotter pin 45 are installed at the end of the positioning pin 43. The guide shaft 42 passes through the guide shaft mounting hole of the mounting plate 41 and is installed to the guide assembly mounting hole 213 of the bearing seat 21. The bolt 46 is tightened to press the press-fitting plane at the end of the guide shaft 42 in the threaded hole 214.

[0044] When working, first pre-install the fork to the inner crotch of the inner door frame. At this time, the side rollers of the left and right composite rollers of the fork are in the unextended state. Rotate the two-way wire lever 33 in the direction of contraction of the left-hand screw 31 and the right-hand screw 32 until the length of the screw assembly 3 is less than the inner crotch width of the inner door frame, and place the entire fork center alignment detection device to the inner crotch of the inner door frame. Rotate the two-way wire lever 33 in the direction of extension of the left-hand screw 31 and the right-hand screw 32 until the screw assembly is tightly pressed against the inner side surface of the inner door frame. Then, the measuring reference surface 11 on the side of the fixed bracket 1 is used as the fork adjustment measurement reference surface. Adjust the extension length of the side rollers of the composite rollers on the left and right sides of the fork until the reference surface on the fork coincides with the measuring reference surface 11 of the fixed bracket 1. In this way, the center of the fork basically coincides with the center line of the inner door frame. Then, with the measuring reference center line 12 of the fixed bracket as the reference, measure the left and right side dimensions of the fork for comparison. After confirmation, rotate the two-way wire lever 33 to remove the fork center alignment detection device.

Claims

1. A fork center alignment detection device for a laser forklift, characterized by: The invention comprises a fixed bracket (1), wherein a measuring reference center line (12) is provided on the fixed bracket (1), two bearing assemblies (2) are symmetrically mounted on the fixed bracket (1) along the measuring reference center line (12), a screw assembly (3) is mounted on the two bearing assemblies (2), and the screw assembly (3) comprises a left-hand screw (31) and a right-hand screw (32) which are capable of synchronously extending and retracting along a perpendicular direction to the center line of the fixed bracket (1).

2. The fork center alignment detection device for a laser forklift according to claim 1, characterized in that: The screw assembly (3) further comprises a bidirectional screw lever (33), a guide assembly (4) is fixedly mounted on the bearing assembly (2), the left-hand screw (31) and the right-hand screw (32) slide back and forth along the guide assembly (4), and the guide assembly (4) also restricts the left-hand screw (31) and the right-hand screw (32) from rotating along the axis of the screw assembly (3); The left-hand screw (31) is provided with a left-hand external thread, and the right-hand screw (32) is provided with a right-hand external thread. One end of the bidirectional wire lever (33) is a left-hand internal thread, which cooperates with the left-hand external thread on the left-hand screw (31), and the other end is a right-hand internal thread, which cooperates with the right-hand external thread on the right-hand screw (32).

3. The fork center alignment detection device for a laser forklift according to claim 2, characterized in that: The perpendicular midline of the screw assembly (3) coincides with the measurement reference center line (12).

4. The fork center alignment detection device for a laser forklift according to claim 3, characterized in that: The bearing assembly (2) comprises a bearing seat (21), a bearing (22) and a retaining ring (23); The bearing (22) is fixed to the bearing seat (21) via a retaining ring (23); The lower portion of the bearing seat (21) is provided with a long hole (211) and a positioning pin hole (212), the upper portion is provided with a guide assembly mounting hole (213) and a threaded hole (214), and the middle portion is provided with a bearing mounting hole (215) for assembling the bearing (22).

5. The fork center alignment detection device for a laser forklift according to claim 4, characterized in that: Both ends of the bidirectional wire lever (33) are respectively mounted on two bearings (22).

6. The fork center alignment detection device for a laser forklift according to claim 4, characterized in that: The fixing bracket (1) is provided with an installation positioning hole based on the measurement reference center line (12), and the bearing seat (21) is positioned in the installation positioning hole by a positioning pin (6). The bearing assembly (2) also includes a fastening bolt (5), and the bearing seat (21) is fixed to the fixing bracket (1) by the fastening bolt (5).

7. The fork center alignment detection device for a laser forklift according to claim 1, characterized in that: Two triangular reference notches are formed at the center line of the fixed bracket (1), and a line connecting the two reference notches forms a measurement reference center line (12); The two side surfaces of the fixed bracket (1) parallel to the measurement reference center line (12) are measurement reference surfaces (11), and the measurement reference surfaces (11) are symmetrically arranged along the measurement reference center line (12).

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