CN216881515U

CN216881515U - Special fixture for stud production

Info

Publication number: CN216881515U
Application number: CN202220032226.XU
Authority: CN
Inventors: 王凤丽; 王留杰; 王振东
Original assignee: Hangzhou Hangzheng Machinery Co ltd
Current assignee: Hangzhou Hangzheng Machinery Co ltd
Priority date: 2022-01-07
Filing date: 2022-01-07
Publication date: 2022-07-05
Anticipated expiration: 2032-01-07

Abstract

The utility model discloses a special fixture for stud production, which comprises a bottom plate and fixing plates arranged at the top end of the bottom plate in a pairwise symmetry manner, wherein a thread rolling mechanism is arranged between the two fixing plates and comprises a rotating plate, the rotating plate is arranged between the two fixing plates, rotating shafts are symmetrically arranged on two sides of the rotating plate, a hollow hole is formed in the inner side of each fixing plate, a first threaded hole is formed in the front end of each rotating plate in a penetrating manner, a clamping rotating assembly is arranged inside the first threaded hole, a fixing assembly is arranged at the contact position of the rotating plate and the side surface of each fixing plate, the clamping rotating assembly is driven to rotate by adopting a thread rolling device to roll one end of a stud, the clamping rotating assembly is in threaded fit with the first threaded hole to drive the stud to move along the direction vertical to the rotating plate, so that the whole fixture can drive the stud to do circumferential rotation and horizontal movement while clamping the stud, the production efficiency of stud generation is improved, and the time required by stud production is reduced.

Description

Special fixture for stud production

Technical Field

The utility model relates to the technical field of stud machining, in particular to a special fixture for stud production.

Background

Stud refers to a cylindrical fastener with threads on both ends. The method is widely applied to electric power, chemical engineering, oil refining, valves, railways, bridges, steel structures, steam friction fittings, machinery, boiler steel structures, tower cranes, large-span steel structures, large buildings and the like;

the existing double-end stud is processed by thread rolling at two ends of the stud by using a thread rolling machine, but more auxiliary tools are needed to rotate and clamp the stud, so that too much processing time is wasted, and the processing efficiency is reduced.

SUMMERY OF THE UTILITY MODEL

In order to overcome the defects of the prior art, the utility model provides a special clamp for stud production.

In order to solve the technical problems, the utility model provides the following technical scheme: a special fixture for stud production comprises a base plate and fixing plates which are arranged at the top end of the base plate in a pairwise symmetry manner, wherein a thread rolling mechanism for clamping a stud to be processed is arranged between the two fixing plates, the thread rolling mechanism comprises a rotating plate, the rotating plate is arranged between the two fixing plates, rotating shafts are symmetrically arranged on two sides of the rotating plate, a hollow hole is formed in the inner side of each fixing plate, a first threaded hole is formed in the front end of the rotating plate in a penetrating manner, a clamping rotating assembly is arranged inside the first threaded hole, and a fixing assembly is arranged at the contact position of the rotating plate and the side surface of each fixing plate;

as a preferred technical scheme, the clamping rotating assembly comprises a sliding cylinder, the sliding cylinder is movably arranged inside the first threaded hole, external threads are arranged on the outer surface of the sliding cylinder, through holes are formed in two ends of the sliding cylinder in a penetrating mode, and limiting assemblies are symmetrically arranged on two sides of the sliding cylinder;

according to a preferred technical scheme, the limiting assembly comprises a fixing block, the fixing block is arranged on the surfaces of two ends of the sliding cylinder, a second threaded hole is formed in the side face of the fixing block in a penetrating mode, a threaded rod is movably arranged inside the second threaded hole, a clamping plate is arranged at one end of the threaded rod, and a handle is arranged at the other end of the threaded rod;

as a preferred technical scheme, the fixing assembly comprises a hinge block, a rotating block and a fixing rod, the corner positions of the top end and the bottom end of the rotating plate are respectively provided with the hinge block, the outer surface of the hinge block is movably provided with the rotating block, the side surface of the rotating block is provided with a blocking groove, and the inner side surface of the fixing plate is provided with the fixing rod;

as a preferred technical scheme of the utility model, the size of the inner diameter of the baffle groove is the same as the size of the outer diameter of the fixing rod;

as a preferred technical scheme of the utility model, the outer surface of the fixed rod and the inner wall of the baffle groove are both provided with anti-skid grains;

compared with the prior art, the utility model can achieve the following beneficial effects:

one end of the stud is twisted by the thread twisting device to drive the clamping rotating assembly to rotate, and the clamping rotating assembly is in threaded fit with the first threaded hole, so that the clamping rotating assembly drives the stud to move in the direction perpendicular to the rotating plate, the whole clamp can drive the stud to rotate circumferentially and move horizontally while clamping the stud, production efficiency of stud generation is improved, and time required by stud production is shortened.

Drawings

FIG. 1 is a schematic perspective view of a special fixture for stud production according to the present invention;

FIG. 2 is a schematic top view of the special fixture for stud production according to the present invention;

FIG. 3 is a schematic structural view of the slide cartridge and the stop assembly of the present invention;

FIG. 4 is a schematic view of the structure of the rotating plate according to the present invention;

FIG. 5 is an enlarged schematic view of the structure of FIG. 1 at A according to the present invention;

wherein: 1. a base plate; 2. a fixing plate; 3. a thread rolling mechanism; 31. a rotating plate; 32. a first threaded hole; 33. a rotating shaft; 34. clamping the rotating assembly; 341. a slide cylinder; 342. a through hole; 343. a limiting component; 3431. a fixed block; 3432. a second threaded hole; 3433. a threaded rod; 3434. a splint; 3435. a handle; 35. a fixing assembly; 351. a hinged block; 352. rotating the block; 353. and (5) fixing the rod.

Detailed Description

The present invention will be further described with reference to specific embodiments for the purpose of facilitating an understanding of technical means, characteristics of creation, objectives and functions realized by the present invention, but the following embodiments are only preferred embodiments of the present invention, and are not intended to be exhaustive. Based on the embodiments in the implementation, other embodiments obtained by those skilled in the art without any creative efforts belong to the protection scope of the present invention. The experimental methods in the following examples are conventional methods unless otherwise specified, and materials, reagents and the like used in the following examples are commercially available unless otherwise specified.

Examples

Referring to fig. 1 and 2, the utility model provides a special fixture for stud production, comprising a bottom plate 1 and two fixing plates 2 symmetrically arranged on the top of the bottom plate 1 in pairs, a thread rolling mechanism 3 for clamping a stud to be processed is arranged between the two fixing plates 2, the thread rolling mechanism 3 comprises a rotating plate 31, the rotating plate 31 is arranged between the two fixing plates 2, rotating shafts 33 are symmetrically arranged on two sides of the rotating plate 31, the turning plate 31 is used for turning over, so that when the other end of the stud is machined, the stud is only required to be pushed to the other port of the first threaded hole 32 through the first threaded hole 32, a hollow hole is formed in the inner side of the fixing plate 2 and is movably connected with the rotating shaft 33, the first threaded hole 32 is formed in the front end of the turning plate 31 in a penetrating mode, a clamping rotating assembly 34 is arranged inside the first threaded hole 32, the clamping rotating assembly 34 is used for placing the stud to be machined, and a fixing assembly 35 is arranged at the contact position of the turning plate 31 and the side face of the fixing plate 2;

as a further implementation manner of this embodiment, as shown in fig. 3, the clamping rotating assembly 34 includes a sliding cylinder 341, the sliding cylinder 341 is movably disposed inside the first threaded hole 32, the cross-sectional shape of the sliding cylinder 341 is "i" shaped, an external thread is disposed on the outer surface of the sliding cylinder 341, through holes 342 are formed through both ends of the sliding cylinder 341, two sides of the sliding cylinder 341 are symmetrically provided with limiting assemblies 343, and the limiting assemblies 343 are used for clamping a stud to be processed;

as a further embodiment of this embodiment, as shown in fig. 3, the limiting assembly 343 includes a fixing block 3431, the fixing block 3431 is disposed on the two end surfaces of the sliding barrel 341, a second threaded hole 3432 is formed through the side surface of the fixing block 3431, a threaded rod 3433 is movably disposed inside the second threaded hole 3432, a clamping plate 3434 is disposed at one end of the threaded rod 3433, the threaded rod 3433 is connected to the clamping plate 3434 through a bearing, so that the clamping plate 3434 cannot rotate along with the rotation of the threaded rod 3433 when the threaded rod 3433 is rotated, and a handle 3435 is disposed at the other end of the threaded rod 3433;

as a further embodiment of this embodiment, as shown in fig. 5, the fixing assembly 35 is composed of a hinge block 351, a rotating block 352 and a fixing rod 353, the corner of the top end and the bottom end of the rotating plate 31 are both provided with the hinge block 351, the outer surface of the hinge block 351 is movably provided with the rotating block 352, the side surface of the rotating block 352 is provided with a retaining groove, and the inner side surface of the fixing plate 2 is provided with the fixing rod 353;

as a further embodiment of this embodiment, as shown in fig. 5, the inner diameter of the retaining groove is the same as the outer diameter of the fixing rod 353;

the reason why the inner diameter of the blocking groove is equal to the outer diameter of the fixing rod 353 is to firmly clamp the rotating block 352 and the fixing rod 353;

as a further embodiment of this embodiment, as shown in fig. 5, the outer surface of the fixing rod 353 and the inner wall of the retaining groove are both provided with anti-slip threads;

the anti-slip threads are arranged on the outer surface of the fixed rod 353 and the inner wall of the blocking groove, so that the friction force between the rotating block 352 and the fixed rod 353 is increased, and the rotating plate 31 is fixed;

the working process is as follows:

when the screw thread needs to be processed at one end of the stud, the stud to be processed is placed inside the through hole 342, the end to be processed extends out of the through hole 342, then the handle 3435 is rotated to enable the threaded rod 3433 to drive the clamping plate 3434 connected with the threaded rod 3433 to move, so that the stud is clamped tightly, then the rotating plate 31 is rotated to enable the rotating plate 31 and the fixing plate 2 to form a vertical plane, then the rotating block 352 at the edge of the rotating plate 31 is rotated to enable the blocking groove to be clamped with the fixing rod 353, so that the rotating plate 31 is fixed tightly, the thread rolling device at the front end of the rotating plate 31 drives the stud and the sliding cylinder 341 to rotate, meanwhile, the sliding cylinder 341 is screwed with the screw thread of the first threaded hole 32 to drive the stud to move in the direction perpendicular to the rotating plate 31, and further an external thread is formed at one end of the stud.

In the present invention, unless expressly stated or limited otherwise, the recitation of a first feature "on" or "under" a second feature may include the recitation of the first and second features being in direct contact, and may also include the recitation that the first and second features are not in direct contact, but are in contact via another feature between them. Also, the first feature "on," "above" and "over" the second feature may include the first feature being directly above and obliquely above the second feature, or simply indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.

The foregoing shows and describes the general principles, essential features, and advantages of the utility model. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, and the preferred embodiments of the present invention are described in the above embodiments and the description, and are not intended to limit the present invention. The scope of the utility model is defined by the appended claims and equivalents thereof.

Claims

1. The utility model provides a double-screw bolt production special fixture, includes that bottom plate (1) and two bisymmetry settings set up fixed plate (2) on bottom plate (1) top, its characterized in that: two be provided with between fixed plate (2) and be used for treating the tight thread rolling mechanism (3) of double-screw bolt clamp of processing, thread rolling mechanism (3) includes rotor plate (31), rotor plate (31) set up between two fixed plate (2), and the bilateral symmetry of rotor plate (31) is provided with pivot (33), the cavity has been seted up to the inboard of fixed plate (2), first screw hole (32) have been seted up in the front end run through of rotor plate (31), the inside of first screw hole (32) is provided with presss from both sides tight rotating assembly (34), rotor plate (31) and fixed plate (2) side contact department are provided with fixed subassembly (35).

2. The special fixture for stud production according to claim 1, wherein: the clamping rotating assembly (34) comprises a sliding barrel (341), the sliding barrel (341) is movably arranged inside the first threaded hole (32), external threads are arranged on the outer surface of the sliding barrel (341), through holes (342) are formed in the two ends of the sliding barrel (341) in a penetrating mode, and limiting assemblies (343) are symmetrically arranged on the two sides of the sliding barrel (341).

3. The special fixture for stud production according to claim 2, wherein: the limiting assembly (343) comprises a fixing block (3431), the fixing block (3431) is arranged on the surfaces of the two ends of the sliding cylinder (341), a second threaded hole (3432) is formed in the side face of the fixing block (3431) in a penetrating mode, a threaded rod (3433) is movably arranged inside the second threaded hole (3432), a clamping plate (3434) is arranged at one end of the threaded rod (3433), and a handle (3435) is arranged at the other end of the threaded rod (3433).

4. The special fixture for stud production according to claim 1, wherein: fixed subassembly (35) comprise articulated piece (351) and turning block (352) and dead lever (353), and the edges and corners department of the top of turning plate (31) and bottom all is provided with articulated piece (351), and the surface activity of articulated piece (351) is provided with turning block (352), and the side of turning block (352) has seted up the groove that keeps off, and the inboard surface of fixed plate (2) is provided with dead lever (353).

5. The special clamp for stud production according to claim 4, wherein: the size of the inner diameter of the blocking groove is the same as the size of the outer diameter of the fixing rod (353).

6. The special clamp for stud production according to claim 4, wherein: the outer surface of the fixing rod (353) and the inner wall of the blocking groove are both provided with anti-skidding lines.