CN219152429U - Positioning fixture for automobile chassis processing grinder - Google Patents

Abstract

The utility model belongs to the technical field of automobile chassis clamps, in particular to a positioning clamp for an automobile chassis processing grinder, which comprises a bottom plate, wherein four support columns are fixedly connected to the top of the bottom plate, flat plates are fixedly connected to the top ends of the four support columns and are used for placing an automobile chassis, two first vertical plates are fixedly connected to the top of the bottom plate, and a first bidirectional threaded rod is rotatably connected between the two first vertical plates through a bearing; through stop gear's structural design, place automobile chassis on the flat board, rotate two turntables and hold automobile chassis through first locating splint and second splint, pull the arm-tie to the outside earlier, make the second spring by tensile, upwards pull the arm-tie again, make first spring by tensile, make the inserted block insert and establish in the socket, the second spring can keep the inserted block to insert the state of establishing in the socket, carry out spacingly to the turntables, realized preventing at the in-process carousel of polishing and bi-directional threaded rod can the free pivoted function.

Description

Positioning fixture for automobile chassis processing grinder

Technical Field

The utility model relates to the technical field of automobile chassis clamps, in particular to a positioning clamp for an automobile chassis machining grinder.

Background

The chassis of the automobile consists of a drive system, a running system, a steering system and a braking system, and is used for supporting and installing an automobile engine and various parts thereof and receiving the power of the engine so as to enable the automobile to move and ensure normal running, and a special grinding machine is required to be used for grinding in the production and processing process of the automobile chassis.

In order to enable the automobile chassis not to shake in the polishing process, a positioning clamp is usually arranged on the grinding machine and used for positioning and clamping the automobile chassis, the existing positioning clamp is provided with a rotating handle, a threaded rod, a clamping block and other structures, the automobile chassis is placed on the grinding machine, the rotating handle is rotated, the rotating handle can drive the threaded rod to rotate, and the threaded rod can enable the clamping block to clamp the automobile chassis.

However, the existing positioning clamp is easy to loosen in the process of polishing the automobile chassis by a grinding machine, and larger vibration can be generated in the polishing process, and the vibration can cause the threaded rod to rotate, so that the clamping blocks loosen the automobile chassis; therefore, a positioning jig for an automobile chassis processing grinder is proposed to solve the above problems.

Disclosure of Invention

In order to make up the defects of the prior art, the problem that the existing positioning clamp is easy to loose in the process of polishing an automobile chassis by a grinder is solved.

The technical scheme adopted for solving the technical problems is as follows: the utility model discloses a positioning fixture for an automobile chassis processing grinder, which comprises a bottom plate, wherein four supporting columns are fixedly connected to the top of the bottom plate, a flat plate is fixedly connected to the top of the four supporting columns, the flat plate is used for placing an automobile chassis, two first vertical plates are fixedly connected to the top of the bottom plate, a first bidirectional threaded rod is rotatably connected between the two first vertical plates through a bearing, a first guide rod is fixedly connected between the two first vertical plates, two first moving plates are connected to the surface of the first bidirectional threaded rod through threads, the first guide rod penetrates through the first moving plates, a first positioning clamping plate is fixedly connected to the top of the first moving plates, two second vertical plates are fixedly connected to the top of the bottom plate, a second bidirectional threaded rod is fixedly connected between the two second vertical plates through bearings, a second guide rod is fixedly connected between the two second vertical plates, two second guide rods penetrate through the second moving plates, a first positioning clamping plate and a second bidirectional threaded rod are fixedly connected to the top of the second moving plates, and a first rotating plate is fixedly connected to one end of the second rotating plate;

the limiting mechanism comprises four fixing plates fixedly connected to a first vertical plate and a second vertical plate, guide posts are fixedly connected between every two adjacent fixing plates, lifting plates are connected to the surfaces of the guide posts in a sliding mode, first springs are fixedly connected between the lifting plates and the fixing plates, the first springs are sleeved on the outer sides of the guide posts, connecting plates are fixedly connected to the lifting plates, two T-shaped rods are fixedly connected to the connecting plates, pulling plates are connected to the T-shaped rods in a sliding mode, two second springs are fixedly connected between the pulling plates and the connecting plates, inserting blocks are fixedly connected to the pulling plates, inserting holes are formed in the rotating disc in a sleeved mode, and the inserting holes are matched with the inserting blocks.

Preferably, threaded holes are formed in the first moving plate and the second moving plate, the threaded directions of the two end surfaces of the first bidirectional threaded rod and the second bidirectional threaded rod are opposite, and the first moving plate and the second moving plate are in threaded connection with the first bidirectional threaded rod and the second bidirectional threaded rod through the threaded holes.

Preferably, the first moving plate and the second moving plate are provided with first round holes, and the first guide rod and the second guide rod penetrate through the first round holes.

Preferably, the two second positioning clamping plates are connected with a sliding plate in a sliding manner, the two second positioning clamping plates are provided with T-shaped sliding grooves, the sliding plate is fixedly connected with a T-shaped sliding block, and the T-shaped sliding block is connected in the T-shaped sliding grooves in a sliding manner.

Preferably, the lifting plate is provided with a second round hole, and the guide post penetrates through the second round hole.

Preferably, a third round hole is formed in the pulling plate, and the T-shaped rod penetrates through the third round hole.

The utility model has the advantages that:

according to the utility model, through the structural design of the limiting mechanism, the automobile chassis is placed on the flat plate, the two turntables are rotated to clamp the automobile chassis through the first locating clamp plate and the second clamp plate, the pulling plate is pulled outwards firstly, the second spring is pulled upwards, the pulling plate is pulled upwards again, the first spring is pulled, the insert block is inserted into the socket, the second spring can keep the state that the insert block is inserted into the socket, the turntables are limited, the function of preventing the turntables and the bidirectional threaded rod from rotating at will in the polishing process is realized, and the problem that the existing locating clamp is easy to loose in the polishing process of the automobile chassis by the grinding machine is solved.

Drawings

In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, it being obvious that the drawings in the following description are only some embodiments of the utility model, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

FIG. 1 is a schematic overall structure of a first embodiment;

FIG. 2 is a schematic diagram of a limiting assembly according to a first embodiment;

FIG. 3 is a schematic diagram of a second moving plate and a sliding plate structure according to the first embodiment;

FIG. 4 is a schematic view of a lifting plate and a pulling plate according to the first embodiment;

fig. 5 is a schematic perspective view of a second embodiment.

In the figure: 1. a bottom plate; 2. a support column; 3. a flat plate; 4. a first riser; 5. a first bi-directional threaded rod; 6. a first guide bar; 7. a first moving plate; 8. a first locating clamp plate; 9. a second riser; 10. a second bi-directional threaded rod; 11. a second guide bar; 12. a second moving plate; 13. a second locating splint; 14. a fixing plate; 15. a guide post; 16. a lifting plate; 17. a first spring; 18. a connecting plate; 19. a T-bar; 20. a second spring; 21. pulling a plate; 22. inserting blocks; 23. a socket; 24. a threaded hole; 25. a first round hole; 26. a sliding plate; 27. t-shaped sliding grooves; 28. a T-shaped slider; 29. a second round hole; 30. a third round hole; 31. a turntable; 32. a handle; 33. a first rubber pad; 34. and a second rubber pad.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Example 1

Referring to fig. 1-4, a positioning fixture for an automobile chassis processing grinder comprises a bottom plate 1, wherein four support columns 2 are fixedly connected to the top of the bottom plate 1, a flat plate 3 is fixedly connected to the top of the four support columns 2, the flat plate 3 is used for placing an automobile chassis, two first vertical rods 4 are fixedly connected to the top of the bottom plate 1, a first bidirectional threaded rod 5 is fixedly connected between the two first vertical rods 4 through bearings in a rotating manner, a first guide rod 6 is fixedly connected between the two first vertical rods 4, two first moving plates 7 are connected to the surface of the first bidirectional threaded rod 5 in a threaded manner, the first guide rod 6 penetrates through the first moving plates 7, a first positioning clamping plate 8 is fixedly connected to the top of the first moving plates 7, two second vertical rods 9 are fixedly connected to the top of the bottom plate 1, a second bidirectional threaded rod 10 is fixedly connected to the top of the two second vertical plates 9 through bearings in a rotating manner, a second guide rod 11 is fixedly connected between the two second vertical rods 9, two second bidirectional threaded rods 12 are connected to the surfaces of the second bidirectional threaded rods 10, two second guide rods 12 penetrate through the second vertical rods 12 are fixedly connected to the second threaded rods 31, and two second threaded rods 31 are fixedly connected to the tops of the second vertical rods 12, and two second threaded rods 31 are fixedly connected to the second vertical rods 12;

the limiting mechanism comprises four fixing plates 14 fixedly connected to a first vertical plate 4 and a second vertical plate 9, guide posts 15 are fixedly connected between two adjacent fixing plates 14, lifting plates 16 are slidably connected to the surfaces of the guide posts 15, first springs 17 are fixedly connected between the lifting plates 16 and the fixing plates 14, the first springs 17 are sleeved on the outer sides of the guide posts 15, connecting plates 18 are fixedly connected to the lifting plates 16, two T-shaped rods 19 are fixedly connected to the connecting plates 18, pull plates 21 are slidably connected to the T-shaped rods 19, two second springs 20 are fixedly connected between the pull plates 21 and the connecting plates 18, second springs 20 are sleeved on the outer sides of the T-shaped rods 19, plug blocks 22 are fixedly connected to the pull plates 21, inserting holes 23 are formed in rotary discs 31, and the inserting holes 23 are matched with the plug blocks 22;

when in work, the automobile chassis to be polished is placed on the top of the flat plate 3, one of the handles 32 is rotated firstly, the handle 32 drives the rotary disc 31 to rotate, the rotary disc 31 drives the second bidirectional threaded rod 10 to rotate, the second bidirectional threaded rod 10 drives the two second movable plates 12 to move towards the middle, the second movable plates 12 drive the second positioning clamping plates 13 to move, the two second positioning clamping plates 13 can position the automobile chassis in the middle of the flat plate 3 and clamp the automobile chassis, the longitudinal positioning of the automobile chassis is realized, because the specification and the size of the automobile chassis to be polished are the same, the two second positioning clamping plates 13 can move the same distance each time when clamping the automobile chassis, so that the sockets 23 on the rotary disc 31 are positioned at the same positions each time when clamping the automobile chassis, namely, the sockets 23 are positioned right above the inserting blocks 22, in order to prevent the rotary disc 31 and the second bidirectional threaded rod 10 from randomly rotating to loosen the automobile chassis due to vibration in the polishing process, the rotary disc 31 needs to be limited, the pull plate 21 is pulled outwards firstly, the pull plate 21 drives the insert block 22 to move, the second spring 20 is stretched, the pull plate 21 is pulled upwards again, the pull plate 21 drives the lifting plate 16 to move, the first spring 17 is stretched, the insert block 22 is inserted into the socket 23, the second spring 20 keeps the insert block 22 in the socket 23, the rotary disc 31 is limited to prevent rotation, the other handle 32 and the rotary disc 31 rotate again, the automobile chassis is positioned and clamped through the first positioning clamping plate 8 to realize transverse positioning of the automobile chassis, the limiting mechanism is used for limiting the rotary disc 31, after polishing is finished, the pull plate 21 is pulled to pull the insert block 22 out of the socket 23, the pull plate 21 is loosened, the insert block 22 returns to the original position under the action of the first spring 17, the turntable 31 can be turned to take down the chassis of the automobile.

Screw holes 24 are formed in the first moving plate 7 and the second moving plate 12, the screw directions of the two end surfaces of the first bidirectional threaded rod 5 and the second bidirectional threaded rod 10 are opposite, and the first moving plate 7 and the second moving plate 12 are in screw connection with the first bidirectional threaded rod 5 and the second bidirectional threaded rod 10 through the screw holes 24;

in operation, by providing the first and second bi-directional threaded rods 5, 10 with opposite thread directions on both end surfaces, the two first and second moving plates 7, 12 can be moved in opposite directions.

The first moving plate 7 and the second moving plate 12 are provided with first round holes 25, and the first guide rod 6 and the second guide rod 11 penetrate through the first round holes 25;

during operation, the first guide rod 6 and the second guide rod 11 slide in the first round hole 25 during the movement of the first moving plate 7 and the second moving plate 12, and limit the first moving plate 7 and the second moving plate 12 in the horizontal direction.

The two second positioning clamping plates 13 are connected with a sliding plate 26 in a sliding manner, T-shaped sliding grooves 27 are formed in the two second positioning clamping plates 13, T-shaped sliding blocks 28 are fixedly connected to the sliding plate 26, and the T-shaped sliding blocks 28 are connected in the T-shaped sliding grooves 27 in a sliding manner;

when the automobile chassis positioning clamp is operated, after the second positioning clamp plate 13 is used for positioning and clamping the automobile chassis at first, the automobile chassis is in close contact with the sliding plates 26 on two sides, the first positioning clamp plate 8 can still be used for positioning and clamping the automobile chassis, the automobile chassis drives the sliding plates 26 to move, the sliding plates 26 drive the T-shaped sliding blocks 28 to slide in the T-shaped sliding grooves 27, and the sliding plates 26 are limited in the horizontal direction.

A second round hole 29 is formed in the lifting plate 16, and the guide post 15 penetrates through the second round hole 29;

during operation, during the movement of the lifting plate 16, the guide post 15 slides in the second circular hole 29, and the lifting plate 16 is limited in the vertical direction.

The pull plate 21 is provided with a third round hole 30, and the T-shaped rod 19 penetrates through the third round hole 30;

during operation, during the movement of the pull plate 21, the T-shaped rod 19 slides in the third round hole 30, and limits the pull plate 21 in the horizontal direction.

Example two

Referring to fig. 5, in a first comparative example, as another embodiment of the present utility model, a first rubber pad 33 is fixedly connected to the first positioning clamping plate 8, and a second rubber pad 34 is fixedly connected to the sliding plate 26; in operation, by arranging the first rubber pad 33 and the second rubber pad 34, the automobile chassis can be well prevented from sliding when the first locating clamping plate 8 and the sliding plate 26 are located and clamped, and the automobile chassis can be protected.

Working principle: when in use, the automobile chassis to be polished is placed on the top of the flat plate 3, one of the handles 32 is rotated firstly, the handle 32 drives the rotary disc 31 to rotate, the rotary disc 31 drives the second bidirectional threaded rod 10 to rotate, the second bidirectional threaded rod 10 drives the two second movable plates 12 to move towards the middle, the second movable plates 12 drive the second positioning clamping plates 13 to move, the two second positioning clamping plates 13 can position the automobile chassis in the middle of the flat plate 3 and clamp the automobile chassis, the longitudinal positioning of the automobile chassis is realized, because the specification and the size of the automobile chassis to be polished are the same, the two second positioning clamping plates 13 can travel the same distance each time when clamping the automobile chassis, so that the sockets 23 on the rotary disc 31 are positioned at the same positions each time when clamping the automobile chassis, namely, the sockets 23 are positioned right above the inserting blocks 22, in order to prevent the rotary disc 31 and the second bidirectional threaded rod 10 from randomly rotating to loosen the automobile chassis due to vibration in the polishing process, the rotary disc 31 needs to be limited, the pull plate 21 is pulled outwards firstly, the pull plate 21 drives the insert block 22 to move, the second spring 20 is stretched, the pull plate 21 is pulled upwards again, the pull plate 21 drives the lifting plate 16 to move, the first spring 17 is stretched, the insert block 22 is inserted into the socket 23, the second spring 20 keeps the insert block 22 in the socket 23, the rotary disc 31 is limited to prevent rotation, the other handle 32 and the rotary disc 31 rotate again, the automobile chassis is positioned and clamped through the first positioning clamping plate 8 to realize transverse positioning of the automobile chassis, the limiting mechanism is used for limiting the rotary disc 31, after polishing is finished, the pull plate 21 is pulled to pull the insert block 22 out of the socket 23, the pull plate 21 is loosened, the insert block 22 returns to the original position under the action of the first spring 17, the turntable 31 can be turned to take down the chassis of the automobile.

In the description of the present specification, the descriptions of the terms "one embodiment," "example," "specific example," and the like, mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present utility model. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiments or examples. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

The foregoing has shown and described the basic principles, principal features and advantages of the utility model. It will be understood by those skilled in the art that the present utility model is not limited to the embodiments described above, and that the above embodiments and descriptions are merely illustrative of the principles of the present utility model, and various changes and modifications may be made without departing from the spirit and scope of the utility model, which is defined in the appended claims.

Claims (6)

1. The utility model provides a positioning fixture for an automobile chassis processing grinding machine, includes bottom plate (1), the top rigid coupling of bottom plate (1) has four support column (2), four the top rigid coupling of support column (2) has flat board (3), flat board (3) are used for placing automobile chassis, its characterized in that: the top rigid coupling of bottom plate (1) has two first risers (4), two be connected with first two-way threaded rod (5) through the bearing rotation between first riser (4), two rigid coupling has first guide bar (6) between first riser (4), the surface threaded connection of first two-way threaded rod (5) has two first movable plates (7), first guide bar (6) run through first movable plate (7), the top rigid coupling of first movable plate (7) has first locating splint (8), the top rigid coupling of bottom plate (1) has two second risers (9), two be connected with second two-way threaded rod (10) through the bearing rotation between second risers (9), two rigid coupling has second guide bar (11) between second two-way threaded rod (10) have two second movable plates (12) on the surface threaded connection of second two-way threaded rod (10), second guide bar (11) second movable plates (12), the top rigid coupling of second movable plates (7) has first locating splint (31) have two-way threaded rod (31) between second threaded rod (9), a limiting mechanism is arranged on the first vertical plate (4) and the second vertical plate (9);

the limiting mechanism comprises four fixed plates (14) fixedly connected to a first vertical plate (4) and a second vertical plate (9), guide posts (15) are fixedly connected between every two adjacent fixed plates (14), lifting plates (16) are slidably connected to the surfaces of the guide posts (15), first springs (17) are fixedly connected between the lifting plates (16) and the fixed plates (14), the first springs (17) are sleeved on the outer sides of the guide posts (15), connecting plates (18) are fixedly connected to the lifting plates (16), two T-shaped rods (19) are fixedly connected to the connecting plates (18), pull plates (21) are connected to the two T-shaped rods (19) in a sliding mode, two second springs (20) are fixedly connected between the pull plates (21) and the connecting plates (18), inserting blocks (22) are fixedly connected to the second springs (20) in a sleeved mode on the outer sides of the T-shaped rods (19), inserting holes (22) are formed in the pull plates (21), and inserting blocks (23) are matched with the inserting blocks (22).

2. The positioning jig for an automobile chassis machining grinder according to claim 1, wherein: screw holes (24) are formed in the first moving plate (7) and the second moving plate (12), the screw directions of the two end surfaces of the first bidirectional threaded rod (5) and the second bidirectional threaded rod (10) are opposite, and the first moving plate (7) and the second moving plate (12) are in screw connection with the first bidirectional threaded rod (5) and the second bidirectional threaded rod (10) through the screw holes (24).

3. The positioning jig for an automobile chassis machining grinder according to claim 2, wherein: first round holes (25) are formed in the first moving plate (7) and the second moving plate (12), and the first guide rods (6) and the second guide rods (11) penetrate through the first round holes (25).

4. A positioning jig for an automobile chassis machining grinder according to claim 3, wherein: the two second locating clamping plates (13) are connected with sliding plates (26) in a sliding mode, T-shaped sliding grooves (27) are formed in the two second locating clamping plates (13), T-shaped sliding blocks (28) are fixedly connected to the sliding plates (26), and the T-shaped sliding blocks (28) are connected in the T-shaped sliding grooves (27) in a sliding mode.

5. The positioning fixture for an automobile chassis machining grinder according to claim 4, wherein: a second round hole (29) is formed in the lifting plate (16), and the guide column (15) penetrates through the second round hole (29).

6. The positioning fixture for an automobile chassis machining grinder according to claim 5, wherein: a third round hole (30) is formed in the pull plate (21), and the T-shaped rod (19) penetrates through the third round hole (30).

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