阅读说明：本技术 一种钢平台螺栓紧固专用治具及其使用方法 (Special jig for fastening steel platform bolt and using method thereof ) 是由 朱亚驹 唐晋武 罗华 于 2021-08-06 设计创作，主要内容包括：本发明公开了一种钢平台螺栓紧固专用治具及其使用方法,治具包括螺栓紧固套筒、L型固定板、横向固定机构,所述螺栓紧固套筒轴向沿竖向设置且底部设有六角法兰槽用于与螺栓配合,所述L型固定板包括水平板以及竖直板,所述螺栓紧固套筒竖向活动穿设于水平板上,所述螺栓紧固套筒、水平板间设有防转机构,所述螺栓紧固套筒筒壁上竖向间隔开设多个调节孔；所述横向固定机构包括轴向沿水平方向设置的外套筒和同轴设置于外套筒内的连接限位杆,外套筒内部设有传动装置与连接限位杆前端连接用于驱动连接限位杆轴向伸缩。本治具结构简单,便于拆装,使用过程中三者稳定连接,连接限位杆与外套筒间不会产生周向活动间隙,可安全高效完成螺栓紧固。(The invention discloses a special jig for fastening a steel platform bolt and a using method thereof, wherein the jig comprises a bolt fastening sleeve, an L-shaped fixing plate and a transverse fixing mechanism, the bolt fastening sleeve is axially and vertically arranged, a hexagonal flange groove is formed in the bottom of the bolt fastening sleeve and used for being matched with the bolt, the L-shaped fixing plate comprises a horizontal plate and a vertical plate, the bolt fastening sleeve is vertically and movably arranged on the horizontal plate in a penetrating manner, an anti-rotation mechanism is arranged between the bolt fastening sleeve and the horizontal plate, and a plurality of adjusting holes are vertically formed in the wall of the bolt fastening sleeve at intervals; the transverse fixing mechanism comprises an outer sleeve and a connecting limiting rod, the outer sleeve is axially arranged in the horizontal direction, the connecting limiting rod is coaxially arranged in the outer sleeve, and a transmission device is arranged in the outer sleeve and connected with the front end of the connecting limiting rod to drive the connecting limiting rod to axially extend and retract. This tool simple structure, the dismouting of being convenient for, the three is stably connected in the use, connects and can not produce circumference free gap between gag lever post and outer sleeve, can accomplish the bolt-up safely high-efficiently.)

1. A special fixture for fastening steel platform bolts is characterized by comprising a bolt fastening sleeve (1), an L-shaped fixing plate (2) and a transverse fixing mechanism (3),

the bolt fastening sleeve (1) is axially and vertically arranged, a hexagonal flange groove (4) is formed in the bottom of the bolt fastening sleeve and used for being matched with a bolt, the L-shaped fixing plate (2) comprises a horizontal plate (21) and a vertical plate (22) connected above the horizontal plate (21), the bolt fastening sleeve (1) is vertically and movably arranged on the horizontal plate (21), an anti-rotation mechanism for limiting the relative rotation of the bolt fastening sleeve (1) and the horizontal plate (21) is arranged between the bolt fastening sleeve (1) and the horizontal plate (21), and a plurality of adjusting holes (11) are formed in the wall of the bolt fastening sleeve (1) at vertical intervals;

horizontal fixed establishment (3) include outer sleeve (5) that the axial set up along the horizontal direction and coaxial setting in outer sleeve (5) connect gag lever post (6), one side of keeping away from horizontal plate (21) on outer sleeve (5) and vertical board (22) is connected, outer sleeve (5) inside be equipped with transmission and be connected gag lever post (6) front end and be connected and be used for the drive to connect gag lever post (6) axial flexible, it passes vertical board (22) and regulation hole (11) and gets into bolt-up sleeve (1) and connects into whole with bolt-up sleeve (1), L type fixed plate (2), horizontal fixed establishment (3).

2. The special jig for fastening the steel platform bolts as claimed in claim 1, wherein the transmission device comprises a transmission sleeve (7) coaxially arranged in an outer sleeve (5), a rotating handle is arranged at the front end of the transmission sleeve (7), the outer wall of the transmission sleeve (7) is in threaded connection with the outer sleeve (5) so that the transmission sleeve (7) axially extends and retracts relative to the outer sleeve (5) when rotating, the inner wall of the transmission sleeve (7) is in threaded connection with the outer wall of a connecting limiting rod (6) so that the driving connecting limiting rod (6) axially extends and retracts when the transmission sleeve (7) rotates, and a limiting mechanism for limiting the connecting limiting rod (6) to move only axially is arranged inside the outer sleeve (5).

3. The special jig for fastening the steel platform bolt according to claim 2, wherein the limiting mechanism comprises limiting sliding blocks (61) which are correspondingly and convexly formed at two radial ends of a connecting limiting rod (6), the inner wall of the rear end of the outer sleeve (5) is correspondingly provided with limiting sliding grooves (51), and each limiting sliding block (61) is correspondingly positioned in the limiting sliding groove (51) and has an axial moving space in the limiting sliding groove (51).

4. The special jig for fastening the steel platform bolts as claimed in claim 2, wherein the rotating handle comprises a limiting disc (8) coaxially connected to the transmission sleeve (7), the outer diameter of the limiting disc (8) is larger than the inner diameter of the outer sleeve (5), the front end face of the limiting disc (8) is coaxially connected to a rotating shaft (9), and the end of the rotating shaft (9) is fixedly connected to an L-shaped handle (10).

5. The special jig for fastening the steel platform bolt according to claim 4, wherein the transmission sleeve (7) and the connection limiting rod (6) are synchronously retracted or extended relative to the front end and the rear end of the outer sleeve (5) respectively when the transmission sleeve (7) rotates, and the limiting slide block (61) is positioned at the foremost end of the limiting slide groove (51) when the limiting disc (8) contacts with the front end of the outer sleeve (5) for limiting.

6. The special jig for fastening the steel platform bolts as claimed in claim 1, wherein the horizontal plate (21) is provided with a vertical mounting hole (23) for the bolt fastening sleeve (1) to pass through, the rotation-preventing mechanism comprises a limiting lug (12) formed by protruding radial two ends of the bolt fastening sleeve (1) and a limiting groove (24) formed by outward recessing radial two ends of the mounting hole (23), and the limiting lug (12) is located in the limiting groove (24).

7. The special fixture for fastening the steel platform bolt according to claim 1, wherein the vertical plate (22) is provided with a limiting hole (25) for the connection limiting rod (6) to pass through, and the diameter of the limiting hole (25) corresponds to the outer diameter of the connection limiting rod (6).

8. The special fixture for fastening the steel platform bolts according to claim 1, wherein the fastening base (13) is coaxially welded to the bottom end of the inner wall of the bolt fastening sleeve (1), and the hexagonal flange groove (4) is located in the fastening base (13).

9. The special fixture for fastening the steel platform bolt according to claim 1, wherein the diameter of the adjusting hole (11) corresponds to the outer diameter of the connecting limit rod (6).

10. Use of the special jig for steel platform bolt fastening according to any one of claims 1 to 9, characterized by comprising the following steps:

a. assembling jig

The bolt fastening sleeve (1) is placed on a steel platform to be matched with a bolt, an L-shaped fixing plate (2) connected with a transverse fixing mechanism (3) downwards penetrates through the bolt fastening sleeve (1), the vertical position of the L-shaped fixing plate (2) is adjusted, a transmission device in the transverse fixing mechanism (3) is operated to enable a connecting limiting rod (6) to axially extend out, the connecting limiting rod (6) penetrates through a vertical plate (22) and an adjusting hole (11) to enter the bolt fastening sleeve (1), and the bolt fastening sleeve (1), the L-shaped fixing plate (2) and the transverse fixing mechanism (3) are connected into a whole;

b. fastening bolt

Force is applied to the end part of the transverse fixing mechanism (3) to drive the bolt fastening sleeve (1) to rotate, and the bolt synchronously rotates to complete fastening;

c. disassembling jig

And operating a transmission device in the transverse fixing mechanism (3) to axially retract the connecting limiting rod (6), withdrawing the connecting limiting rod (6) from the adjusting hole (11), and upwards separating the L-shaped fixing plate (2) connected with the transverse fixing mechanism (3) from the bolt fastening sleeve (1).

Technical Field

The invention relates to the technical field of bolt fastening, in particular to a special fixture for fastening a steel platform bolt and a using method thereof.

Background

The steel platform is an engineering structure made of steel materials, is generally formed by connecting section steel and steel plates, is of a full-assembly structure, and is flexible in design and wide in application. At present, generally increase long sleeve on the open-end wrench and come fastening bolt on the steel platform, this mounting means requires operating personnel to squat down and fastens the operation, and is tired easily for a long time, influences work efficiency. And there is not fixed connection between long sleeve and open-ended spanner, if there is great clearance in circumference between long sleeve inner wall and open-ended spanner, then the long sleeve axial will form certain contained angle with open-ended spanner length direction when the application of force is in long sleeve, not only influences the stable atress of bolt, probably causes long sleeve and open-ended spanner pine to take off even, causes the injury to operating personnel.

Therefore, it is necessary to develop a jig for fastening a steel platform bolt, which has a simple structure, an adjustable height and good stability, and a method for using the jig.

Disclosure of Invention

The invention aims to solve the defects of the background technology and provide a special fixture for fastening a steel platform bolt, which has a simple structure, adjustable height and good stability, and a using method thereof.

The technical scheme of the invention is as follows: a special fixture for fastening a steel platform bolt is characterized by comprising a bolt fastening sleeve, an L-shaped fixing plate and a transverse fixing mechanism,

the bolt fastening sleeve is axially and vertically arranged, a hexagonal flange groove is formed in the bottom of the bolt fastening sleeve and used for being matched with a bolt, the L-shaped fixing plate comprises a horizontal plate and a vertical plate connected above one side of the horizontal plate, the bolt fastening sleeve is vertically and movably arranged on the horizontal plate in a penetrating mode, an anti-rotation mechanism for limiting the relative rotation of the bolt fastening sleeve and the horizontal plate is arranged between the bolt fastening sleeve and the horizontal plate, and a plurality of adjusting holes are formed in the wall of the bolt fastening sleeve at vertical intervals;

the transverse fixing mechanism comprises an outer sleeve and a connecting limiting rod, the outer sleeve is axially arranged in the horizontal direction, the connecting limiting rod is coaxially arranged in the outer sleeve, the outer sleeve is connected with one side, far away from the horizontal plate, of the vertical plate, a transmission device is arranged inside the outer sleeve and connected with the front end of the connecting limiting rod to be used for driving the connecting limiting rod to axially stretch, and the rear end of the connecting limiting rod penetrates through the vertical plate and the adjusting hole to enter the bolt fastening sleeve to connect the bolt fastening sleeve, the L-shaped fixing plate and the transverse fixing mechanism into a whole.

Preferably, transmission includes the coaxial transmission sleeve that sets up in the outer sleeve, the transmission sleeve front end is equipped with the rotation handle, threaded connection is flexible for the outer sleeve axial when transmission sleeve outer wall and outer sleeve can make transmission sleeve rotate, drive connection gag lever post axial is flexible when transmission sleeve inner wall and connection gag lever post outer wall threaded connection can make transmission sleeve rotate, the inside stop gear that the gag lever post can only axial activity that is connected in the restriction that is equipped with of outer sleeve.

Furthermore, the limiting mechanism comprises limiting sliding blocks which are connected with two radial ends of the limiting rod and correspondingly protrude to form, limiting sliding grooves are correspondingly formed in the inner wall of the rear end of the outer sleeve, and each limiting sliding block is correspondingly located in each limiting sliding groove and has an axial moving space in each limiting sliding groove.

Further, the rotating handle comprises a limiting disc coaxially fixedly connected to the transmission sleeve, the outer diameter of the limiting disc is larger than the inner diameter of the outer sleeve, a rotating shaft is coaxially fixedly connected to the front end face of the limiting disc, and the end part of the rotating shaft is fixedly connected with an L-shaped handle.

Furthermore, when the transmission sleeve rotates, the transmission sleeve and the connecting limiting rod respectively retract or extend synchronously relative to the front end and the rear end of the outer sleeve, and the limiting sliding block is positioned at the foremost end of the limiting sliding groove when the limiting disc is contacted with the front end of the outer sleeve for limiting.

Preferably, be equipped with vertical mounting hole on the horizontal plate and supply bolt fastening sleeve to pass, prevent changeing the spacing ear that the mechanism includes the protruding formation in the radial both ends of bolt fastening sleeve and the spacing groove that the mounting hole diameter is concave outward and is formed in both ends, spacing ear is located the spacing inslot.

Preferably, the vertical plate is provided with a limiting hole for the connection limiting rod to pass through, and the diameter of the limiting hole corresponds to the outer diameter of the connection limiting rod.

Preferably, the bottom end of the inner wall of the bolt fastening sleeve is coaxially welded with the fastening base, and the hexagonal flange groove is located in the fastening base.

Preferably, the aperture of the adjusting hole corresponds to the outer diameter of the connecting limiting rod.

The invention also provides a use method of any one of the special fixtures for fastening the steel platform bolts, which is characterized by comprising the following steps of:

a. assembling jig

The bolt fastening sleeve is placed on the steel platform to be matched with the bolt, the L-shaped fixing plate connected with the transverse fixing mechanism is arranged on the bolt fastening sleeve in a downward penetrating mode, the vertical position of the L-shaped fixing plate is adjusted, the transmission device in the transverse fixing mechanism is operated to enable the connecting limiting rod to axially extend out, the connecting limiting rod penetrates through the vertical plate and the adjusting hole to enter the bolt fastening sleeve, and the bolt fastening sleeve, the L-shaped fixing plate and the transverse fixing mechanism are connected into a whole.

b. Fastening bolt

Force is applied to the end part of the transverse fixing mechanism to drive the bolt fastening sleeve to rotate, the bolt synchronously rotates to complete fastening,

c. and (5) disassembling the jig.

And operating a transmission device in the transverse fixing mechanism to axially retract the connecting limiting rod, withdrawing the connecting limiting rod from the adjusting hole, and upwards separating the L-shaped fixing plate connected with the transverse fixing mechanism from the bolt fastening sleeve.

The invention has the beneficial effects that:

1. the height of the L-shaped fixing plate of the jig can be adjusted by sliding through the vertical through hole on the bolt fastening sleeve, so that an operator can operate vertically, and the hexagon flange groove on the bolt fastening sleeve can be clamped into a bolt on the steel platform.

And 2, the L-shaped fixing plate penetrates through the limiting lug when vertically moving on the bolt fastening sleeve, and the limiting lug is matched with the limiting groove to prevent the L-shaped fixing plate from rotating relative to the bolt fastening sleeve.

3. The outer sleeve has sufficient length, can increase the arm of force, reduces the application of force, makes things convenient for fastening bolt, has improved work efficiency, conveniently operates, rotates the transmission sleeve through turning handle, and the transmission sleeve drive is connected the gag lever post and is removed and the regulation jogged joint on the bolt-up sleeve, fixes L type fixed plate and bolt-up sleeve and carries on spacingly, conveniently carries out altitude mixture control.

4. When the connecting limiting rod moves, the connecting limiting rod drives the limiting sliding block to slide in the limiting sliding rail, and only axial movement of the connecting limiting rod is limited.

5. This tool simple structure, the dismouting of being convenient for, during the use with bolt-up sleeve, L type fixed plate, horizontal fixed establishment assemble into wholly can, the three is stably connected in the use, can not produce circumference clearance between connecting gag lever post and outer sleeve, can accomplish the bolt-up safely high-efficiently.

Drawings

FIG. 1 is a schematic view of a jig according to the present invention

FIG. 2 is a partial top view of FIG. 1

FIG. 3 is a schematic view of a bolt fastening sleeve

FIG. 4 is a structural sectional view of a transverse fixing mechanism

FIG. 5 is a sectional view taken along line A-A in FIG. 4

Wherein: the device comprises a bolt fastening sleeve 1, a bolt fastening sleeve 2, an L-shaped fixing plate 3, a transverse fixing mechanism 4, a hexagonal flange groove 5, an outer sleeve 6, a connecting limiting rod 7, a transmission sleeve 8, a limiting disc 9, a rotating shaft 10, a handle 11, an adjusting hole 12, a limiting lug 13, a fastening base 21, a horizontal plate 22, a vertical plate 23, an installation hole 24, a limiting groove 51, a limiting sliding groove 61 and a limiting sliding block.

Detailed Description

The following specific examples further illustrate the invention in detail.

As shown in fig. 1-5, the invention provides a special jig for fastening a steel platform bolt, which comprises a bolt fastening sleeve 1, an L-shaped fixing plate 2 and a transverse fixing mechanism 3, wherein the bolt fastening sleeve 1 is axially and vertically arranged, a hexagonal flange groove 4 is arranged at the bottom of the bolt fastening sleeve 1, the hexagonal flange groove 4 is used for being matched with the bolt, the L-shaped fixing plate 2 comprises a horizontal plate 21 and a vertical plate 22 connected above one side of the horizontal plate 21, the bolt fastening sleeve 1 is vertically and movably arranged on the horizontal plate 21 in a penetrating manner, an anti-rotation mechanism for limiting the relative rotation of the bolt fastening sleeve 1 and the horizontal plate 21 is arranged between the bolt fastening sleeve 1 and the horizontal plate 21, and a plurality of adjusting holes 11 are vertically arranged on the wall of the bolt fastening sleeve 1 at intervals; the transverse fixing mechanism 3 comprises an outer sleeve 5 and a connecting limiting rod 6, the outer sleeve 5 is axially arranged in the horizontal direction, the connecting limiting rod 6 is coaxially arranged in the outer sleeve 5, the outer sleeve 5 is fixedly connected with one side, far away from the horizontal plate 21, of the vertical plate 22, a transmission device is arranged inside the outer sleeve 5 and connected with the front end of the connecting limiting rod 6 to be used for driving the connecting limiting rod 6 to axially stretch, and the rear end of the connecting limiting rod 6 penetrates through the vertical plate 22 and the adjusting hole 11 to enter the bolt fastening sleeve 1 to connect the bolt fastening sleeve 1, the L-shaped fixing plate 2 and the transverse fixing mechanism 3 into a whole. In this embodiment, one end of the transverse fixing mechanism 3, which is axially adjacent to the L-shaped fixing plate 2, is a rear end, i.e., the right end in fig. 1; the end axially far away from the L-shaped fixing plate 2 is taken as the front end, i.e. the left end in fig. 1.

The transmission device comprises a transmission sleeve 7 coaxially arranged in an outer sleeve 5, a rotating handle is arranged at the front end of the transmission sleeve 7, the outer wall of the transmission sleeve 7 is in threaded connection with the outer sleeve 5 to enable the transmission sleeve 7 to axially extend and retract relative to the outer sleeve 5 when rotating, the inner wall of the transmission sleeve 7 is in threaded connection with the outer wall of a connecting limiting rod 6 to enable the transmission sleeve 7 to axially extend and retract when rotating, and a limiting mechanism limiting the connecting limiting rod 6 to only axially move is arranged inside the outer sleeve 5. The limiting mechanism in this embodiment includes a limiting slide block 61 formed by connecting two radial ends of the limiting rod 6 and corresponding to the protrusions, a limiting slide groove 51 is correspondingly formed on the inner wall of the rear end of the outer sleeve 5, and the limiting slide block 61 is correspondingly located in the limiting slide groove 51 and only axially moves in the limiting slide groove 51.

The rotating handle comprises a limiting disc 8 coaxially fixedly connected to the transmission sleeve 7, the outer diameter of the limiting disc 8 is larger than the inner diameter of the outer sleeve 5, a rotating shaft 9 is coaxially fixedly connected to the front end face of the limiting disc 8, and an L-shaped handle 10 is fixedly connected to the end portion of the rotating shaft 9.

Be equipped with vertical mounting hole 23 on the horizontal plate 21 and supply bolt fastening sleeve 1 to pass, the mounting hole 23 aperture corresponds with bolt fastening sleeve 1 external diameter, prevents that the mechanism includes the spacing ear 12 of the protruding formation in the radial both ends of bolt fastening sleeve 1 and the spacing groove 24 of the radial both ends evagination formation of mounting hole 23, and spacing ear 12 is located spacing groove 24.

In this embodiment, the fastening base 13 is coaxially welded to the bottom end of the inner wall of the bolt fastening sleeve 1, and the hexagonal flange groove 4 is provided in the fastening base 13. The aperture of the adjusting hole 11 on the bolt fastening sleeve 1 corresponds to the outer diameter of the connecting limiting rod 6. A vertical plate 22 of the L-shaped fixing plate 2 is provided with a limiting hole 25 which horizontally penetrates through, and the diameter of the limiting hole 25 corresponds to the outer diameter of the connecting limiting rod 6. In this embodiment, the front end of the outer sleeve 5 is open, the rear end of the outer sleeve is provided with a radial sealing plate, the sealing plate is welded with the front end face of the vertical plate 22, a movable hole is coaxially formed in the sealing plate and used for extending out of the connecting limiting rod 6, and the diameter of the movable hole corresponds to the outer diameter of the connecting limiting rod 6.

In this embodiment, when the transmission sleeve 7 rotates, the transmission sleeve 7 and the connection limiting rod 6 are synchronously retracted or extended from the front end and the rear end of the outer sleeve 5 respectively, and the synchronous retraction or the synchronous extension can be realized by a person skilled in the art by setting the thread direction. Specifically, as shown in fig. 4, the front and rear ends of the outer sleeve 5, the connection limiting rod 6, and the transmission sleeve 7 correspond to the left and right ends in fig. 4, and when the transmission sleeve 7 rotates to axially extend out of the front end of the outer sleeve 5 (the transmission sleeve 7 moves to the left in fig. 4), the connection limiting rod 6 is driven by the transmission sleeve 7 to extend out of the rear end of the outer sleeve 5 (the connection limiting rod 6 moves to the right in fig. 4). Similarly, when the transmission sleeve 7 rotates to axially retract into the front end of the outer sleeve 5 (the transmission sleeve 7 moves towards the right in fig. 4), the connection limiting rod 6 is driven by the transmission sleeve 7 to retract into the rear end of the outer sleeve 5 (the connection limiting rod 6 moves towards the left in fig. 4), the transmission sleeve 7 reaches the maximum retraction amount when the limiting disc 8 contacts with the front end of the outer sleeve 5 for limiting, and at the moment, the limiting slide block 61 retracts into the foremost end of the limiting slide groove 51. When the limiting slide block 61 moves axially in the limiting slide groove 51, the connecting limiting rod 6 and the transmission sleeve 7 are always in threaded connection.

The use method of the special fixture for fastening the steel platform bolt comprises the following steps:

a. assembling jig

The bolt fastening sleeve 1 is placed on a steel platform to enable the hexagonal flange groove 4 to be matched with the bolt, the L-shaped fixing plate 2 fixedly connected with the transverse fixing mechanism 3 is downwards enabled to enable the mounting hole 23 of the horizontal plate 21 to penetrate through the bolt fastening sleeve 1 and adjust the vertical position of the L-shaped fixing plate 2, the limiting lug 12 is always positioned in the limiting groove 24 during adjustment to prevent the L-shaped fixing plate 2 from rotating relative to the bolt fastening sleeve 1,

after the height is adjusted, an operator rotates the handle 10 to enable the limiting disc 8 to rotate, the limiting disc 8 drives the transmission sleeve 7 to rotate in the outer sleeve 5, the transmission sleeve 7 drives the connection limiting rod 6 to extend backwards when rotating, the rear end of the connection limiting rod 6 penetrates through the limiting hole 25 and the adjusting hole 11 in the vertical plate 22 to enter the bolt fastening sleeve 1, and the bolt fastening sleeve 1, the L-shaped fixing plate 2 and the transverse fixing mechanism 3 are connected into a whole;

b. fastening bolt

Force is applied to the front end of the outer sleeve 5 along the axial direction vertical to the outer sleeve 5 to drive the bolt fastening sleeve 1 to rotate, the bolt synchronously rotates to finish fastening,

c. and (5) disassembling the jig.

An operator rotates the handle 10 to enable the connecting limiting rod 6 to retract forwards, the connecting limiting rod 6 withdraws from the adjusting hole 11, and the L-shaped fixing plate 2 connected with the transverse fixing mechanism 3 is upwards separated from the bolt fastening sleeve 1.