CN210937207U

CN210937207U - Manual clamp

Info

Publication number: CN210937207U
Application number: CN201921595692.3U
Authority: CN
Inventors: 李培华; 李世波
Original assignee: Chongqing Super Tusi Robot Tools Co ltd
Current assignee: Chongqing Super Tusi Robot Tools Co ltd
Priority date: 2019-09-24
Filing date: 2019-09-24
Publication date: 2020-07-07
Anticipated expiration: 2029-09-24

Abstract

The utility model relates to the technical field of machine manufacturing, in particular to a manual clamp, which comprises a base, wherein a placing groove and a plurality of slide ways are arranged on the base, the placing groove is positioned at the center of the base, the slide ways are communicated with the placing groove, a lead screw shell is arranged in the slide ways, a lead screw rod is arranged in the lead screw shell, a nut seat is arranged on the lead screw rod, a clamping jaw is arranged on the nut seat, and the clamping jaw is arranged in the slide ways in a sliding manner; one end of the screw rod screw is provided with a connecting rod, the connecting rod comprises a fixing part and a rotating part, the fixing part is provided with a fixing groove, and the rotating part is in spline connection with the fixing groove; keep away from one of fixed part in the rotation portion and serve the head that is equipped with "one" font, the one end that is close to the rotation portion on the lead screw shell is equipped with the first logical groove and the circular shape second logical groove of "one" font, the head can get into first logical groove, the rotation portion can get into the second and lead to the groove. The utility model aims at providing an anti-vibration's manual jig.

Description

Manual clamp

Technical Field

The utility model relates to a machine-building technical field specifically discloses a manual clamp.

Background

The jig is a device for fixing a processing object to occupy a correct position for receiving construction or inspection in a machine manufacturing process. In a broad sense, any device used to quickly, conveniently and safely mount a workpiece at any stage in a process may be referred to as a jig.

In the related art, the three-jaw chuck is used as a most common clamp and is commonly used for clamping shaft parts. The three-jaw chuck can be mounted in a lathe, a machining center, or the like. The existing three-jaw chuck is generally manual, has high precision, but has poor vibration prevention effect, and is easy to loosen under the condition of large vibration.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing an anti-vibration's manual jig.

In order to achieve the above object, the basic scheme of the utility model is:

the manual clamp comprises a base, wherein a placing groove and a plurality of slide ways are arranged on the base, the placing groove is positioned in the center of the base, the slide ways are communicated with the placing groove, a screw rod shell is arranged in each slide way, a screw rod is arranged in the screw rod shell, a nut seat is arranged on the screw rod, a clamping jaw is arranged on the nut seat, and the clamping jaw is arranged in each slide way in a sliding manner; one end of the screw rod screw is provided with a connecting rod, the connecting rod comprises a fixing part and a rotating part, the fixing part is provided with a fixing groove, and the rotating part is in spline connection with the fixing groove; keep away from one of fixed part in the rotation portion and serve the head that is equipped with "one" font, the one end that is close to the rotation portion on the lead screw shell is equipped with the first logical groove and the circular shape second logical groove of "one" font, the head can get into first logical groove, the rotation portion can get into the second and lead to the groove.

Optionally, one end of the head part, which is far away from the rotating part, is provided with a cross-shaped connecting groove.

Optionally, a rectangular groove for placing the clamping jaw is formed in the nut seat, a fixing rod is arranged on the rectangular groove, a T-shaped clamping groove is formed in one end, close to the clamping jaw, of the fixing rod along the length direction of the fixing rod, two [ "shaped clamping blocks are arranged in the clamping groove, a spring is arranged on each clamping block, and the spring is connected with the clamping groove; one end of the clamping jaw, which is close to the fixed rod, is provided with a T-shaped matching groove, and the clamping block can be clamped into the matching groove.

Optionally, a magnet is arranged at one end of the clamping block close to the clamping jaw.

The working principle and the beneficial effects of the basic scheme are as follows:

in this scheme the head can get into first logical groove, makes the head card unable rotation in first logical groove, and the lead screw can't rotate this moment, so the unable back-and-forth movement of nut seat to this fixes the jack catch, avoids the jack catch to become flexible because of the vibration.

Drawings

FIG. 1 is a schematic diagram of an embodiment of the present invention;

FIG. 2 is a partial structural cross-sectional view of the lead screw housing, lead screw, nut seat and jaws;

fig. 3 is a schematic structural view of the first through groove and the second through groove.

Detailed Description

The following is further detailed by way of specific embodiments:

reference numerals in the drawings of the specification include: the screw rod clamping device comprises a base 1, a slide way 2, a screw rod shell 3, a connecting rod 4, a connecting groove 5, a sliding groove 6, a nut seat 7, a clamping jaw 8, a rotating seat 9, a screw rod 10, a rectangular groove 12, a fixing rod 13, a clamping groove 14, a clamping block 15, a spring 16, a matching groove 17, a magnet 18, a fixing portion 19, a rotating portion 20, a fixing groove 21, a spline 22, a key groove 24, a head portion 25, a first through groove 27 and a second through groove 28.

Example one

This embodiment is substantially as shown in fig. 1, 2 and 3:

manual fixture, including base 1, be equipped with cylindric resettlement groove and three rectangular bodily form slides 2 on the base 1, the contained angle of three slides 2 is 120 resettlement groove and is located the center of base 1, slide 2 and resettlement groove intercommunication, and slide 2 internal fixation is provided with lead screw shell 3, the up end opening of lead screw shell 3. Two rotating seats 9 are fixedly arranged in the screw shell 3, and a screw rod 10 is rotatably arranged on the two rotating seats 9. The coaxial fixed connecting rod 4 that is equipped with of lead screw 10's one end, connecting rod 4 include fixed part 19 and rotation portion 20, the right-hand member and the lead screw 10 fixed connection of fixed part 19, and the left end of fixed part 19 is equipped with fixed slot 21, and the right-hand member an organic whole of rotation portion 20 is equipped with spline 22, is equipped with keyway 24 in the fixed slot 21, and spline 22 and the cooperation of keyway 24 and spline 22 can slide in keyway 24. The left part of the rotating part 20 is fixedly provided with a linear head part 25, the left inner side wall of the screw shell 3 is provided with a linear first through groove 27, and the length and the width of the first through groove 27 are the same as those of the head part 25. A circular second through groove 28 horizontally penetrating through the left side wall of the screw shell 3 is formed in the screw shell, and the second through groove 28 is concentric with the rotating part 20 and has the same diameter. The head 25 can enter the first through slot 27 and the rotating part 20 can enter the second through slot 28. The left end of the head part 25 is provided with a cross-shaped connecting groove 5.

The screw rod 10 is connected with a nut seat 7 in a threaded manner, sliding blocks are arranged on two sides of the nut seat 7, sliding grooves 6 are formed in two inner walls of the screw rod shell 3, and the sliding blocks are arranged in the sliding grooves 6 in a sliding manner. The nut seat 7 is provided with a claw 8, and the claw 8 is arranged in the slideway 2 in a sliding manner. A rectangular groove 12 for placing the clamping jaw 8 is formed in the nut seat 7, a fixed rod 13 is horizontally and fixedly arranged on the rectangular groove 12, a T-shaped clamping groove 14 is formed in one end, close to the clamping jaw 8, of the fixed rod 13 along the length direction of the fixed rod 13, two [ -shaped clamping blocks 15 are arranged in the clamping groove 14, a spring 16 is fixedly arranged on each clamping block 15, and the spring 16 is fixedly connected with the clamping groove 14; one end of the clamping jaw 8 close to the fixed rod 13 is provided with a T-shaped matching groove 17, and the clamping block 15 can be clamped into the matching groove 17. A magnet 18 is fixedly arranged at one end of the fixture block 15 close to the jaw 8.

The specific implementation process is as follows:

the connecting rod 4 is pushed inwards to enable the head 25 to be withdrawn from the first through groove 27, at the moment, the head 25 can rotate, the rotating part 20, the connecting rod 4 and the lead screw 10 can all rotate, then a tool with a cross-shaped head is used to be inserted into the connecting groove 5, the lead screw 10 is rotated, the nut seat 7 starts to move, and the claw 8 approaches and clamps the part. Then the rotating part 20 is pulled outwards, the head part 25 is clamped into the first through groove 27, at the moment, the screw rod 10 cannot rotate, so that the nut seat 7 cannot move forwards and backwards, the clamping jaws 8 are fixed, and the clamping jaws 8 are prevented from loosening due to vibration.

The above description is only an example of the present invention, and the common general knowledge of the known specific structures and characteristics of the embodiments is not described herein. It should be pointed out that to those skilled in the art, without departing from the structure of the present invention, a plurality of modifications and improvements can be made, which should also be regarded as the protection scope of the present invention, and these will not affect the effect of the implementation of the present invention and the utility of the present invention.

Claims

1. Manual jig, its characterized in that: the device comprises a base, wherein a placing groove and a plurality of slide ways are arranged on the base, the placing groove is positioned in the center of the base, the slide ways are communicated with the placing groove, a screw rod shell is arranged in each slide way, a screw rod is arranged in the screw rod shell, a nut seat is arranged on the screw rod, a clamping jaw is arranged on the nut seat, and the clamping jaw is arranged in each slide way in a sliding manner; one end of the screw rod screw is provided with a connecting rod, the connecting rod comprises a fixing part and a rotating part, the fixing part is provided with a fixing groove, and the rotating part is in spline connection with the fixing groove; keep away from one of fixed part in the rotation portion and serve the head that is equipped with "one" font, the one end that is close to the rotation portion on the lead screw shell is equipped with the first logical groove and the circular shape second logical groove of "one" font, the head can get into first logical groove, the rotation portion can get into the second and lead to the groove.

2. The manual clamp of claim 1, wherein: one end of the head part, which is far away from the rotating part, is provided with a cross-shaped connecting groove.

3. The manual clamp of claim 2, wherein: the nut seat is provided with a rectangular groove for placing the clamping jaw, the rectangular groove is provided with a fixed rod, one end of the fixed rod, which is close to the clamping jaw, is provided with a T-shaped clamping groove along the length direction of the fixed rod, two [ -shaped clamping blocks are arranged in the clamping groove, the clamping blocks are provided with springs, and the springs are connected with the clamping grooves; one end of the clamping jaw, which is close to the fixed rod, is provided with a T-shaped matching groove, and the clamping block can be clamped into the matching groove.

4. The manual clamp of claim 3, wherein: and a magnet is arranged at one end of the clamping block close to the clamping jaw.