CN216227385U

CN216227385U - Clamping and fixing device for screw thread machining

Info

Publication number: CN216227385U
Application number: CN202122603476.2U
Authority: CN
Inventors: 杨伟
Original assignee: Suzhou Huirenyou Fastener Co ltd
Current assignee: Suzhou Huirenyou Fastener Co ltd
Priority date: 2021-10-28
Filing date: 2021-10-28
Publication date: 2022-04-08
Anticipated expiration: 2031-10-28

Abstract

The utility model discloses a clamping and fixing device for screw thread machining, which comprises a base, a rotary supporting device and a clamping device, wherein a screw limiting hole is formed in the base, the clamping device is installed above the base through the rotary supporting device, the rotary supporting device comprises a bottom plate, a height-adjustable supporting column and a rotary supporting seat, the height-adjustable supporting column is installed on the bottom plate, and the rotary supporting seat is installed on the height-adjustable supporting column. According to the utility model, in the process of screw thread machining, the clamping device can firmly clamp the nut position at the top of the bolt blank, the rotary supporting device is positioned between the clamping device and the base, the rotation of the bolt blank can be realized in the process of screw thread machining, the thread machining of the thread rolling plate from two sides of the bolt blank is facilitated, and the height of the rotary supporting device can be adjusted, so that the requirements of machining threads of bolt blanks of different specifications can be met.

Description

Clamping and fixing device for screw thread machining

Technical Field

The utility model relates to the technical field of screw machining, in particular to a clamping and fixing device for screw thread machining.

Background

The screw is a tool for gradually confining object parts by utilizing the physics and mathematical principles of the inclined plane prototype rotation and friction of an object, the screw is an indispensable industrial necessity in daily life, the production quality of the screw influences the actual use effect of the screw, the screw is formed by processing cylindrical steel, and after the cylindrical steel is processed into a bolt blank, a workpiece is fed into a screw thread rolling machine through a feeding track to carry out thread processing on the surface of the bolt blank; the screw thread rolling machine is a device for processing the outer surface of a cylindrical workpiece, and can roll a bolt blank between two thread rolling plates into threads through two identical thread rolling plates with thread rolling surfaces having thread forms with the same spiral angle as the thread forms of the bolt threads when the two thread rolling plates move mutually, so that the bolt is processed into a screw. The thread rolling board carries at the in-process of processing screw thread, if the bolt base takes place the slope, lead to the screw to take place the skew at the in-process of screw thread processing at the screw thread base easily, and then the screw of processing is scrapped, increase the rejection rate, increase manufacturing cost, consequently need a centre gripping fixing device that screw thread processing used, at the in-process of bolt base at screw thread processing, carry out the centre gripping with the top of bolt base, make the bolt base be in vertical state as far as, guarantee the quality of screw thread processing.

SUMMERY OF THE UTILITY MODEL

Utility model purpose: the utility model aims to provide a clamping and fixing device for processing screw threads. The clamping device can firmly clamp the nut position at the top of the bolt blank in the screw thread machining process, the rotary supporting device is positioned between the clamping device and the base, and the rotary supporting device can be used for rotating the bolt blank for machining the screw in the screw thread machining process, so that the thread machining is carried out on the thread rolling plates from two sides of the bolt blank conveniently.

The technical scheme is as follows: in order to achieve the purpose, the clamping and fixing device for screw thread machining comprises a base, a rotary supporting device and a clamping device, wherein a screw limiting hole is formed in the base, the clamping device is installed above the base through the rotary supporting device, the rotary supporting device comprises a bottom plate, a height-adjustable supporting column and a rotary supporting seat, the height-adjustable supporting column is installed on the bottom plate, and the rotary supporting seat is installed on the height-adjustable supporting column.

Furthermore, reinforcing pieces are arranged between the periphery of the height-adjustable supporting column and the bottom plate.

Further, height-adjustable support column is including supporting the outer post, supporting inner prop and locking screw post, it is hollow cylinder shape to support the outer post, and the lower extreme that supports the inner prop is inserted and is established in supporting the outer post, the upper end that supports the outer post is equipped with locking screw post, supports the equidistant screw hole that sets up on the inner prop. The support inner prop is supporting the inside of outer post, supports the depth of inner prop lower extreme supporting the inside of outer post through adjusting to it is fixed to lock through locking screw post, realizes clamping device's altitude mixture control, in order to satisfy the screw thread processing demand of the bolt base of different specifications.

Further, the clamping device comprises a supporting plate, a motor, a rotating disk, a long connecting rod, a short connecting rod I, a short connecting rod II, a clamping arm I and a clamping arm II, wherein the motor is installed at the bottom of the supporting plate, the rotating disk is arranged above the supporting plate, an output shaft of the motor is connected with a driving shaft of the rotating disk, one end of the long connecting rod is arranged on the rotating disk, the other end of the long connecting rod is hinged with one ends of the short connecting rod I and the short connecting rod II, the other end of the short connecting rod I is hinged with the clamping arm I, the middle positions of the clamping arm I and the clamping arm II are hinged with the supporting plate, the motor swings in a reciprocating mode to enable the long connecting rod to move to do crank block motion on the rotating disk, and the long connecting rod drives the short connecting rod I and the short connecting rod II to enable the clamping arm I and the clamping arm II to be opened and closed.

Furthermore, the inner sides of the first clamping arm and the second clamping arm are provided with arc-shaped grooves, elastic pads are arranged in the arc-shaped grooves, and anti-skid lines are arranged on the inner sides of the elastic pads.

Furthermore, an extension spring is arranged between the first clamping arm and the second clamping arm.

Furthermore, the supporting plate is provided with a sliding groove, the hinged positions of the long connecting rod and the short connecting rods I and the hinged positions of the short connecting rods II are provided with sliding blocks, and the sliding blocks are embedded in the sliding groove.

According to the technical scheme, the utility model has the beneficial effects that:

according to the clamping and fixing device for screw thread machining, the clamping device can firmly clamp the nut position at the top of the bolt blank in the screw thread machining process, the rotary supporting device is located between the clamping device and the base, the bolt blank can be rotated in the screw thread machining process, thread machining is conveniently performed on the thread rolling plates from two sides of the bolt blank, the height of the rotary supporting device can be adjusted, and the requirements of bolt blank machining threads of different specifications can be met.

Drawings

FIG. 1 is a schematic structural view of the present invention;

fig. 2 is a schematic structural diagram of the rotary support device of the present invention.

Detailed Description

The utility model is further elucidated with reference to the drawings and the embodiments.

As shown in fig. 1-2, a clamping and fixing device for screw thread processing includes a base 1, a rotary supporting device 2 and a clamping device 3, a screw limiting hole 11 is formed in the base 1, the clamping device 3 is installed above the base 1 through the rotary supporting device 2, the rotary supporting device 2 includes a bottom plate 21, a height-adjustable supporting column 22 and a rotary supporting seat 23, the height-adjustable supporting column 22 is installed on the bottom plate 21, and the rotary supporting seat 23 is installed on the height-adjustable supporting column 22.

Wherein, reinforcing plates 4 are arranged between the periphery of the height-adjustable supporting column 22 and the bottom plate 21.

The height-adjustable support column 22 in this embodiment includes a support outer column 221, a support inner column 222 and a locking threaded column 223, the support outer column 221 is a hollow cylinder, the lower end of the support inner column 222 is inserted into the support outer column 221, the locking threaded column 223 is arranged at the upper end of the support outer column 221, and threaded holes 2221 are formed in the support inner column 222 at equal intervals.

In the embodiment, the clamping device 3 comprises a supporting plate 31, a motor 32, a rotating disc 33, a long connecting rod 34, a short connecting rod I35, a short connecting rod II 36, a clamping arm I37 and a clamping arm II 38, wherein the motor 32 is installed at the bottom of the supporting plate 31, the rotating disc 33 is arranged above the supporting plate 31, an output shaft of the motor 32 is connected with a driving shaft of the rotating disc 33, one end of the long connecting rod 34 is arranged on the rotating disc 33, the other end of the long connecting rod 34 is hinged with one ends of the short connecting rod I35 and the short connecting rod II 36, the other end of the short connecting rod I35 is hinged with the clamping arm I37, the other end of the short connecting rod II 36 is connected with the clamping arm I37, and the middle positions of the clamping arm I37 and the clamping arm II 38 are hinged with the supporting plate 31.

In this embodiment, the inner sides of the first clamping arm 37 and the second clamping arm 38 are both provided with an arc-shaped groove 3a, an elastic pad 3b is arranged in the arc-shaped groove 3a, and the inner side of the elastic pad 3b is provided with anti-slip threads.

In this embodiment, an extension spring is disposed between the first holding arm 37 and the second holding arm 38.

In this embodiment, the supporting plate 31 is provided with a sliding slot 311, the hinge joint of the long link 34, the short link one 35 and the short link two 36 is provided with a sliding block 3c, and the sliding block 3c is embedded in the sliding slot 311.

The examples are given solely for the purpose of illustration and are not to be construed as limitations of the present invention, as various equivalents will occur to those skilled in the art upon reading the present invention and are intended to be within the scope of the utility model as defined in the claims appended hereto.

Claims

1. The utility model provides a centre gripping fixing device of screw thread processing usefulness which characterized in that: including base (1), rotation support device (2) and clamping device (3), be equipped with screw spacing hole (11) on base (1), clamping device (3) are installed in the top of base (1) through rotation support device (2), rotation support device (2) are including bottom plate (21), height-adjustable support column (22) and rotatory supporting seat (23), height-adjustable support column (22) are installed on bottom plate (21), and rotatory supporting seat (23) are installed on height-adjustable support column (22).

2. The clamping fixture for screw thread processing according to claim 1, wherein: and reinforcing sheets (4) are arranged between the periphery of the height-adjustable supporting column (22) and the bottom plate (21).

3. The clamping fixture for screw thread processing according to claim 2, wherein: height-adjustable support column (22) is including supporting outer column (221), supporting inner column (222) and locking screw post (223), support outer column (221) and be hollow cylinder shape, support the lower extreme of inner column (222) and insert and establish in supporting outer column (221), the upper end of supporting outer column (221) is equipped with locking screw post (223), supports inner column (222) equidistant screw hole (2221) that sets up.

4. The clamping fixture for screw thread processing according to claim 1, wherein: the clamping device (3) comprises a supporting plate (31), a motor (32), a rotating disk (33), a long connecting rod (34), a short connecting rod I (35) and a short connecting rod II (36), a clamping arm I (37) and a clamping arm II (38), the motor (32) is installed at the bottom of the supporting plate (31), the rotating disk (33) is arranged above the supporting plate (31), an output shaft of the motor (32) is connected with a driving shaft of the rotating disk (33), one end of the long connecting rod (34) is arranged on the rotating disk (33), the other end of the long connecting rod is hinged with one end of the short connecting rod I (35) and one end of the short connecting rod II (36), the other end of the short connecting rod I (35) is hinged with the clamping arm I (37), the other end of the short connecting rod II (36) is connected with the clamping arm I (37), and the middle positions of the clamping arm I (37) and the clamping arm II are hinged with the supporting plate (31).

5. The clamping fixture for screw thread processing according to claim 4, wherein: the inboard of centre gripping arm (37) and centre gripping arm two (38) all is equipped with arc wall (3 a), be equipped with cushion (3 b) in arc wall (3 a), the inboard of cushion (3 b) is equipped with anti-skidding line.

6. A holding fixture for screw thread processing according to claim 5, wherein: an extension spring is arranged between the first clamping arm (37) and the second clamping arm (38).

7. The clamping fixture for screw thread processing according to claim 6, wherein: the supporting plate (31) is provided with a sliding groove (311), the hinged positions of the long connecting rod (34), the short connecting rod I (35) and the short connecting rod II (36) are provided with a sliding block (3 c), and the sliding block (3 c) is embedded in the sliding groove (311).