Flexible welding tool for fork arm carrier

Abstract

The utility model discloses a flexible welding tool for a fork arm carrier, which comprises a platform, and a side plate opening positioning mechanism, a lower cross beam positioning mechanism, an upper cross beam positioning mechanism, a channeling rod coaxial positioning seat, a stand column plate opening limiting rotating mechanism and a roller shaft positioning rod seat which are arranged on the platform in a detachable fixing manner, a plurality of different types of roller shaft positioning rods are arranged on the roller shaft positioning rod seat; the shifting rod coaxial positioning seat is arranged on the upper side of the middle of the platform, the side plate opening positioning mechanism comprises a first side plate opening positioning unit and a second side plate opening positioning unit, the lower cross beam positioning mechanism is arranged on one side of the first side plate opening positioning unit, and the upper cross beam positioning mechanism is arranged on one side of the second side plate opening positioning unit. And one side of each of the lower cross beam positioning mechanism and the upper cross beam positioning mechanism is provided with a stand column plate opening limiting rotating mechanism. According to the utility model, a movable detachable mechanism is designed aiming at insoluble parts, so that the assembly welding of various products with large structural differences can be met as much as possible, and the demolding is relatively easy.

Description

TECHNICAL FIELD

[0001] The utility model relates to a pallet production technical field, especially a kind of flexible welding tool of pallet. BACKGROUND

[0002] Pallet is the most commonly used device of fork truck, fork truck is equipped with two like letter L pallets.The horizontal section of fork is the working part of forked goods, and the vertical section is the supporting part, and pallet needs to be welded when being produced.

[0003] Large-tonnage pallet has many varieties, and the yield is small, and the manufacturing cost is high using fixed welding die, and the site occupies large area.In addition, due to the variety of large-tonnage pallet, using existing group mold cannot realize full compatibility;Product control precision is high, and there are left and right coaxial control requirements, and the convenience of demolding is a technical difficulty;Product weight is heavy and demolding is difficult. UTILITY MODEL CONTENT

[0004] To solve the above technical problems, the utility model provides a kind of flexible welding tool of pallet, it designs movable detachable mechanism for incontrollable position, as far as possible to meet the group welding of many products with large structural difference, and demolding is relatively easy.

[0005] The technical scheme provided by the utility model is as follows:

[0006] A kind of flexible welding tool of pallet, including platform and the side plate opening positioning mechanism, lower crossbeam positioning mechanism, upper crossbeam positioning mechanism, rod same coaxial positioning seat, column plate opening limiting rotary mechanism and gyro wheel axle positioning rod seat in detachable fixed mode on platform, the gyro wheel axle positioning rod seat is equipped with several different kinds of gyro wheel axle positioning rod;The rod same coaxial positioning seat is set on the upper side of the middle part of platform, and the side plate opening positioning mechanism includes side plate opening positioning unit one and side plate opening positioning unit two, the lower crossbeam positioning mechanism is set on one side of side plate opening positioning unit one, and the upper crossbeam positioning mechanism is set on one side of side plate opening positioning unit two, and one side of the lower crossbeam positioning mechanism, upper crossbeam positioning mechanism is equipped with column plate opening limiting rotary mechanism.

[0007] Preferably, the number of side plate opening positioning unit one, side plate opening positioning unit two, lower crossbeam positioning mechanism and upper crossbeam positioning mechanism is two and is respectively about vertical center line left and right symmetry along rod same coaxial positioning seat;The number of column plate opening limiting rotary mechanism is four, two column plate opening limiting rotary mechanisms are set on the inner side of two lower crossbeam positioning mechanisms, and two column plate opening limiting rotary mechanisms are set on the outer side of two upper crossbeam positioning mechanisms.

[0008] Preferably, the inner side of the roller shaft positioning rod seat is provided with a reinforcing plate positioning block, and the reinforcing plate positioning block is located on one side of the upper crossbeam positioning mechanism.

[0009] Preferably, both the first side panel opening positioning unit and the second side panel opening positioning unit are slidably mounted on the linear guide rail.

[0010] Preferably, the lower crossbeam positioning mechanism includes a positioning block and a rotation limiting unit disposed on one side of the upper end of the positioning block.

[0011] Preferably, the upper crossbeam positioning mechanism includes a fixed support and a tightening unit, the tightening unit is provided with a detachable upper crossbeam support plate, and the lower part of the tightening unit is arranged in a sliding groove.

[0012] Preferably, the column plate opening limit rotation mechanism includes a base, a fixing pin, a rotating cylinder, a fixing column, and a quick-change head. The fixing column is mounted on the base, and the rotating cylinder rotates with the fixing column via a bearing. The rotating cylinder has a fixing hole for use with the fixing pin. The quick-change head is detachably connected to the rotating cylinder, and the upper end of the fixing column is provided with a cover plate.

[0013] Preferably, the number of roller shaft positioning rod seats is four, and two roller shaft positioning rod seats form a group for fixing the two ends of the same roller shaft positioning rod.

[0014] Preferably, there are no fewer than three types of roller shaft positioning rods.

[0015] This invention has the following advantages over the prior art:

[0016] This utility model's flexible welding fixture for forklifts utilizes a platform and detachably fixed mechanisms on the platform, including a side plate opening and positioning mechanism, a lower crossbeam positioning mechanism, an upper crossbeam positioning mechanism, a coaxial positioning seat for the guide rod, a column plate opening and limiting rotation mechanism, and a roller shaft positioning rod seat. Movable and detachable mechanisms are designed for different parts to accommodate the assembly and welding of various products with significant structural differences. The flexible structure not only meets positioning requirements but also expands the product's application range. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1The utility model discloses a structure schematic drawing of flexible welding tooling of fork frame in the embodiment of the utility model.

[0019] Figure 2 The utility model discloses a structure schematic drawing of column plate opening spacing limiting rotation mechanism in the embodiment of the utility model.

[0020] Figure 3 The utility model discloses a structure schematic drawing of lower crossbeam positioning mechanism in the embodiment of the utility model.

[0021] Figure 4 The utility model discloses a structure schematic drawing of upper crossbeam positioning mechanism in the embodiment of the utility model.

[0022] Figure 5 The utility model discloses a structure schematic drawing of one kind of roller shaft positioning rod in the embodiment of the utility model.

[0023] Reference signs:

[0024] 1, platform, 2, side plate opening spacing positioning mechanism, 21, side plate opening spacing positioning unit one, 22, side plate opening spacing positioning unit two, 3, lower crossbeam positioning mechanism, 31, positioning block one, 32, rotation limiting unit, 4, upper crossbeam positioning mechanism, 41, top tight unit, 42, upper crossbeam support plate, 43, sliding groove, 5, same coaxial positioning seat of rod, 6, column plate opening spacing limiting rotation mechanism, 61, base, 62, fixed pin, 63, rotation cylinder, 64, fixed column, 65, quick change head, 66, mounting bearing, 67, cover plate, 7, roller shaft positioning rod seat, 8, roller shaft positioning rod, 9, reinforcing plate positioning block. Specific implementation

[0025] In order to make the technical personnel in the prior art better understand the technical scheme in the utility model, the technical scheme in the embodiment of the utility model will be described clearly and completely below, obviously, the described embodiment only is a part of embodiment of the utility model, but is not all the embodiment. Based on the embodiment in the utility model, all other embodiments that the ordinary skilled in the art obtains without making the creative labor all belong to the range of protection of the utility model.

[0026] As Figures 1-5As shown, the utility model embodiment provides a kind of flexible welding tool of fork frame, including platform 1 and with the fixed mode (can adopt the mode of bolt fixation) of detachable setting on platform 1 Side plate opening limit positioning mechanism 2, lower crossbeam positioning mechanism 3, upper crossbeam positioning mechanism 4, jack bar coaxial positioning seat 5, column plate opening limit rotary mechanism 6 and gyro wheel axle positioning rod seat 7, gyro wheel axle positioning rod seat 7 is equipped with several different kinds of gyro wheel axle positioning rod 8;Jack bar coaxial positioning seat 7 is set on the upper side of the middle part of platform 1, and side plate opening limit positioning mechanism 2 includes side plate opening limit positioning unit one 21 and side plate opening limit positioning unit two 22, and lower crossbeam positioning mechanism 3 is set on one side of side plate opening limit positioning unit one 21, and upper crossbeam positioning mechanism 4 is set on one side of side plate opening limit positioning unit two 22, and one side of lower crossbeam positioning mechanism 3 and upper crossbeam positioning mechanism 4 is equipped with column plate opening limit rotary mechanism 6.

[0027] In the embodiment, platform 1 provides positioning reference for the whole mold, raises the mold to the appropriate height, and facilitates the work of employees. Side plate opening limit positioning unit one 21 supports the height of the bottom of the side plate, ensures the positioning of the height of the side plate, and limits the opening of the side plate laterally. It moves along the linear track and can flexibly adjust the opening size according to product needs. Side plate opening limit positioning unit two 22 limits the opening of the side plate. Side plate opening limit positioning unit one 21 and side plate opening limit positioning unit two 22 are both slidingly arranged on the linear guide rail. Side plate opening limit positioning unit one 21 and side plate opening limit positioning unit two 22 move along the linear track and can flexibly adjust the opening size according to product needs. They also have the function of positioning the jack hole on the side plate. Side plate opening limit positioning unit one 21 and side plate opening limit positioning unit two 22 can adopt existing structures that can position the opening.

[0028] In the embodiment, jack bar coaxial positioning seat 5 can realize the coaxiality of the three holes on the jack mounting hole on the fork jack fixing plate and the jack mounting hole on the side plate.

[0029] In the embodiment, the number of side plate opening limit positioning unit one 21, side plate opening limit positioning unit two 22, lower crossbeam positioning mechanism 3 and upper crossbeam positioning mechanism 4 is two, and they are both symmetric about the vertical center line of jack bar coaxial positioning seat 5. The number of column plate opening limit rotary mechanism 6 is four. Two column plate opening limit rotary mechanisms 6 are set on the inner side of two lower crossbeam positioning mechanisms 3, and the other two column plate opening limit rotary mechanisms 6 are set on the outer side of two upper crossbeam positioning mechanisms 4.

[0030] In this embodiment, the inner side of the roller shaft positioning rod seat 7 is provided with a reinforcing plate positioning block 9, the reinforcing plate positioning block 9 is located on one side of the upper beam positioning mechanism 4, the reinforcing plate positioning block 9 is a height support structure, which realizes the positioning of the height direction of the reinforcing plate, and the height can be quickly adjusted by replacing the upper end support column, so as to realize the height change requirement of various fork frames. The reinforcing plate positioning block 9 can adopt the existing structure which can play a reinforcing and positioning role.

[0031] In this embodiment, the lower beam positioning mechanism 3 includes a positioning block 31 and a rotary limiting unit 32 arranged on one side of the upper end of the positioning block 31. The rotary limiting unit 32 plays a role in limiting the position of the lower beam. At the same time, the rotary limiting unit 32 is designed as a turnover structure, which facilitates the demolding of the fork frame. The rotary limiting unit 32 can also adopt the existing structure which can play a rotary limiting role.

[0032] In this embodiment, the upper beam positioning mechanism 4 includes a fixed abutment (not shown in the figure) and a clamping unit 41. The fixed abutment can adopt the existing structure which can play a fixing role to fix the position of the upper beam. The clamping unit 41 is provided with a detachable upper beam support plate 42 to realize the support requirement of the upper beam of part of the fork frame. The lower part of the clamping unit 41 is arranged in a sliding groove 43. The clamping unit 41 can slide left and right according to the requirement of different products. The clamping unit 41 can adopt the existing structure which can play a clamping role.

[0033] In this embodiment, the column plate opening limiting rotary mechanism 6 realizes the opening limiting of the column plate of the fork frame. The column plate opening limiting rotary mechanism 6 includes a base 61, a fixed pin 62, a rotary cylinder 63, a fixed column 64 and a quick-change head 65. The fixed column 64 is arranged on the base 61. The rotary cylinder 63 rotates with the fixed column 64 through a mounting bearing 66. The rotary cylinder 63 is provided with a fixed hole matched with the fixed pin 62. The quick-change head 65 is connected with the rotary cylinder 63 in a detachable manner. Different opening control of the column plate of the fork frame can be realized by replacing the quick-change head 65. The setting of the rotary cylinder 63 can easily realize the overall demolding of the fork frame. The upper end of the fixed column 64 is provided with a cover plate 67.

[0034] In this embodiment, the number of roller shaft positioning rod seats 7 is four. Two roller shaft positioning rod seats 7 are a group for fixing the two ends of the same roller shaft positioning rod 8. The roller shaft positioning rod seat 7 is a fixed mounting seat of the roller shaft positioning rod 8, which provides a positioning reference and support for it. There are three types of roller shaft positioning rods 8. Three different specifications can realize the compatible trial use of various fork frames.

[0035] The existing fork frame is generally composed of an upper cross beam, a lower cross beam, a column plate, a side plate, a roller shaft and a reinforcing plate. The upper cross beam, the lower cross beam and the left and right side plates form a rectangular frame structure, the left and right column plates are symmetrically and perpendicularly arranged on the upper and lower cross beams, the roller shafts are perpendicularly welded on the column plates, and three roller shafts are welded on each column plate. The process of welding the fork frame by using the flexible welding tool of the embodiment is as follows:

[0036] 1) The height of the upper cross beam is positioned by the upper end fixed support lower support plane, the up-down opening size of the upper cross beam is fixed by the vertical limiting, the upper cross beam is pressed on the fixed limiting block by using the screw rod on the upper cross beam positioning mechanism 4;

[0037] 2) The height of the lower cross beam is positioned by the side plate opening positioning mechanism 2 lower support surface, the lower opening size of the lower cross beam is controlled by the rotating positioning head of the side plate opening positioning mechanism 2, and the side plate opening positioning mechanism 2 and the upper cross beam positioning mechanism 4 control the height of the upper and lower cross beams relative to the bottom plate and the opening of the upper and lower cross beams;

[0038] 3) The height and left-right opening of the side plate of the fork frame are limited by the slidable side plate opening positioning unit two 22, the height is positioned by the lower end support surface and the circular hole on the side plate, and the opening is controlled by the fixed pin on the guide rail to control the position of the opening limiting block;

[0039] 4) The opening of the column plate is realized by four rotatable column plate opening limiting rotating mechanisms 6 which are symmetrical left and right, each column plate opening limiting rotating mechanism 6 contains two positioning studs, and the parallelism and opening of the column plate are realized by the eight positioning studs;

[0040] 5) The roller shaft positioning is realized by the precisely processed roller shaft positioning rod 8, the roller shaft is placed in the semicircular positioning groove of the roller shaft positioning rod 8, the coaxiality and straightness of the six roller shafts are ensured, after spot welding, the positioning mechanisms (including the side plate opening positioning mechanism 2 and other mechanisms for positioning) slide left and right, and the fork frame can be integrally demolded.

[0041] The above description of the disclosed embodiments enables a person skilled in the art to implement or use the present application. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the present application. Therefore, the present application will not be limited to the embodiments shown herein, but will conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A flexible welding fixture for a fork carriage, characterized in that, The utility model provides a kind of platform positioning mechanism, including platform (1) and with detachable fixed mode setting in platform (1) on side plate open gap positioning mechanism (2), lower crossbeam positioning mechanism (3), upper crossbeam positioning mechanism (4), pole same coaxial positioning seat (5), column plate open gap limiting rotary mechanism (6) and gyro wheel axle positioning rod seat (7), the gyro wheel axle positioning rod seat (7) is equipped with several different kinds of gyro wheel axle positioning rod (8);The pole same coaxial positioning seat (5) is set on the middle upper side of platform (1), side plate open gap positioning mechanism (2) includes side plate open gap positioning unit one (21) and side plate open gap positioning unit two (22), the lower crossbeam positioning mechanism (3) is set in one side of side plate open gap positioning unit one (21), the upper crossbeam positioning mechanism (4) is set in one side of side plate open gap positioning unit two (22), one side of the lower crossbeam positioning mechanism (3), upper crossbeam positioning mechanism (4) is equipped with column plate open gap limiting rotary mechanism (6).

2. The fork carriage flexible welding fixture of claim 1, wherein, The number of the side plate open gap positioning unit one (21), the side plate open gap positioning unit two (22), the lower crossbeam positioning mechanism (3) and the upper crossbeam positioning mechanism (4) is two, and they are respectively about the vertical center line of the pole same coaxial positioning seat (5) left-right symmetry;The number of the column plate open gap limiting rotary mechanism (6) is four, two column plate open gap limiting rotary mechanisms (6) are arranged on the inner side of the two lower crossbeam positioning mechanisms (3), and two column plate open gap limiting rotary mechanisms (6) are arranged on the outer side of the two upper crossbeam positioning mechanisms (4).

3. The fork carriage flexible welding fixture of claim 1, wherein, The inner side of the gyro wheel axle positioning rod seat (7) is provided with a reinforcing plate positioning block (9), and the reinforcing plate positioning block (9) is located on one side of the upper crossbeam positioning mechanism (4).

4. The fork carriage flexible welding fixture of claim 1, wherein, The side plate open gap positioning unit one (21) and the side plate open gap positioning unit two (22) are slidably arranged on the linear guide rail (23).

5. The fork carriage flexible welding fixture of any of claims 1-4, wherein, The lower crossbeam positioning mechanism (3) comprises a positioning block one (31) and a rotary limiting unit (32) arranged on one side of the upper end of the positioning block one (31).

6. The fork carriage flexible welding fixture of any of claims 1-4, wherein, The upper crossbeam positioning mechanism (4) comprises a fixed abutment and a jacking unit (41), the jacking unit (41) is provided with a detachable upper crossbeam support plate (42), and the lower part of the jacking unit (41) is arranged in a sliding groove (43).

7. The fork carriage flexible welding fixture of any of claims 1-4, wherein, The column plate open gap limiting rotary mechanism (6) comprises a base (61), a fixed pin (62), a rotary cylinder (63), a fixed column (64) and a quick-change head (65), the fixed column (64) is arranged on the base (61), the rotary cylinder (63) is rotatable through a mounting bearing (66) between the fixed column (64), the rotary cylinder (63) is provided with a fixed hole matched with the fixed pin (62), the quick-change head (65) is connected between the rotary cylinder (63) in a detachable manner, and the upper end of the fixed column (64) is provided with a cover plate (67).

8. The fork carriage flexible welding fixture of any of claims 1-4, wherein, The number of the gyro wheel axle positioning rod seat (7) is four, two gyro wheel axle positioning rod seats (7) are used for fixing two ends of the same gyro wheel axle positioning rod (8).

9. The fork carriage flexible welding fixture of any of claims 1-4, wherein, The number of the gyro wheel axle positioning rod (8) is not less than three.

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