CN218194658U - Bench vice with conveniently adjustable jaw spacing - Google Patents

Abstract

The utility model discloses a bench vice convenient for adjusting the jaw distance, which comprises a supporting base, a connecting square tube, a first jaw, a second jaw and an adjusting component, wherein the first jaw is sleeved on the connecting square tube; the adjusting assembly comprises a lock pin and an adjusting switch, the lock pin is close to or far away from the connecting square pipe while the adjusting switch is rotated, and a plurality of limiting through holes for containing the lock pin are formed in the connecting square pipe; the connecting square tube is provided with a telescopic square tube which can move relative to the connecting square tube, and the second jaw is sleeved on the telescopic square tube; the telescopic square tube is provided with a screw rod assembly, the screw rod assembly comprises a first screw rod and a handle, and a second jaw on the telescopic square tube is close to or far away from the first jaw while the handle is rotated; the utility model discloses an on first keep silent and connecting side pipe conveniently set up relative position between them through adjusting part, can also conveniently adjust the relative position that first keep silent and second kept silent through the lead screw subassembly, accommodation process is simple and convenient, and the centre gripping is reliable and the commonality is good.

Description

Bench vice with conveniently adjustable jaw spacing

Technical Field

The utility model belongs to the technical field of the bench vice, concretely relates to conveniently adjust bench vice of keeping silent interval.

Background

The bench vice is a universal clamp for clamping workpieces and is one of necessary tools in a bench worker workshop, and the bench vice is used for fixing the workpieces to be machined and facilitating further machining. A general bench vice is fixed on a workbench through a base, two vice bodies capable of moving relatively are arranged on the base, jaws for clamping various workpieces are formed between the vice bodies, one jaw is driven by a screw to move linearly relative to the other jaw, and the size of the jaw can be adjusted by rotating a handle to play a role in clamping or loosening. The existing bench vice only has one jaw capable of moving, so when an object with a larger volume is clamped, a lot of time is spent on rotating a handle, and an opening of the jaw is enlarged. Meanwhile, after the product clamping is finished, a lot of time is spent to reduce the opening of the jaw, so that a new product can be clamped next time; the opening interval of this kind of bench vice is not convenient for adjust, and user's centre gripping product is wasted time and energy at every turn, and user experience is poor. Accordingly, there is a need for a vise that facilitates adjustment of the jaw spacing to overcome the above difficulties.

Disclosure of Invention

The utility model discloses to the problem that exists among the prior art, designed a convenient bench vice of interval of keeping silent of adjusting, the utility model discloses keeping silent with the second supporting the base first, first keeping silent conveniently sets up the mounted position on first keeping silent through adjusting part, can also conveniently adjust the relative position that first keeping silent and second kept silent through the lead screw subassembly, accommodation process is simple and convenient, and the centre gripping is reliable and the commonality is good.

The invention aims to be realized by the following technical scheme: a bench vice convenient for adjusting the distance between jaws comprises a supporting base, a connecting square tube, a first jaw, a second jaw and an adjusting assembly arranged between the first jaw and the connecting square tube; the first jaw is sleeved on the connecting square pipe and is arranged on the supporting base through a first screw; the adjusting assembly comprises a lock pin and an adjusting switch, the lock pin is close to or far away from the connecting square pipe while the adjusting switch is rotated, and a plurality of limiting through holes for containing the lock pin are formed in the connecting square pipe; the second jaw is sleeved on the telescopic square tube and keeps moving synchronously with the telescopic square tube; be equipped with the lead screw subassembly on the flexible side pipe, the lead screw subassembly includes first lead screw and handle, when turning handle the second on the flexible side pipe is kept silent and is close to or keeps away from first keeping silent.

Preferably, the adjusting assembly further comprises a first pin shaft, a mounting shaft sleeve, a first spring and a rotating pin shaft, and the first jaw is provided with a U-shaped groove for mounting the adjusting assembly; the adjusting switch is sleeved on the rotating pin shaft and rotates synchronously with the rotating pin shaft, the adjusting switch is abutted against the outer wall of the U-shaped groove, and the rotating pin shaft is close to or far away from the U-shaped groove while the adjusting switch rotates relative to the U-shaped groove; one end of the first pin shaft is installed on the rotating pin shaft, and the other end of the first pin shaft penetrates through the U-shaped groove to be connected with the lock pin; the lock pin is sleeved at the tail end of the first pin shaft, and the mounting shaft sleeve is arranged in the U-shaped groove and sleeved on the outer layer of the lock pin; a first spring used for resetting the lock pin is arranged between the mounting shaft sleeve and the side wall of the U-shaped groove, the first spring sleeve is arranged on the mounting shaft sleeve, one end of the first spring abuts against the inner wall of the U-shaped groove, and the other end of the first spring abuts against the mounting shaft sleeve.

The adjusting component has two working states of a locking state and an unlocking state; in the spacing through-hole of lockpin alternate under the acquiescence state, rotate regulating switch and make the round pin axle of rotating keep away from U type recess, first round pin axle will drive the lockpin and keep away from spacing through-hole when the round pin axle is kept away from U type recess, and the spacing that has lost the lockpin between first keep silent and the connecting square pipe just can keep relative movement, and the adjusting part is in the unblock state this moment. When the lock pin is far away from the limiting through hole, the mounting shaft sleeve is synchronously far away from the limiting through hole, and the first spring is extruded to be in a compression state when the mounting shaft sleeve is far away from the limiting through hole. The first jaw is adjusted to an actually-needed position, the lock pin is aligned to another limiting through hole in the connecting square pipe, then the adjusting switch is rotated to drive the rotating pin shaft to be close to the limiting through hole, the elastic force generated by the first spring can push the mounting shaft sleeve to be close to the limiting through hole, the lock pin can stretch into the limiting through hole when the mounting shaft sleeve is close to the limiting through hole, the adjusting assembly is in a locking state at the moment, and the first jaw and the connecting square pipe can not move relatively due to the limitation of the lock pin.

Preferably, the adjusting switch is provided with a contact part for rotating the pin shaft, the contact part is a hollow cylindrical body with an eccentric structure, the rotating pin shaft is arranged in an eccentric area of the contact part, the contact part abuts against the outer wall of the U-shaped groove, and the rotating pin shaft is close to or far away from the U-shaped groove when the contact part rotates; the first pin shaft is arranged on the rotating pin shaft and is perpendicular to the rotating pin shaft, and the rotating pin shaft drives the first pin shaft to move when moving.

The adjusting switch is provided with a contact part with an eccentric structure, the rotating pin shaft is arranged in an eccentric area of the contact part, the contact part is abutted against the outer wall of the U-shaped groove, the U-shaped groove is extruded by the contact part when the adjusting switch is rotated, the U-shaped groove is kept away or is close to the rotating pin shaft on the contact part, the first pin shaft is driven to move when the rotating pin shaft is close to or is kept away from the U-shaped groove, the lock pin is driven to move when the first pin shaft moves, therefore, the working state of the adjusting component can be conveniently switched by rotating the adjusting switch, and the installation position of the first jaw on the connecting square pipe can be conveniently adjusted.

Preferably, a lock pin moving synchronously with the first pin shaft is arranged in the first pin shaft, and a protrusion is arranged at the tail end of the lock pin; the outer layer of the lock pin is provided with an installation shaft sleeve, the installation shaft sleeve is provided with a step for placing a bulge, and the lock pin is close to the regulating switch and simultaneously drives the installation shaft sleeve to be close to the regulating switch.

The tail end of the lock pin is provided with a bulge, the outer layer of the lock pin is provided with an installation shaft sleeve, and the installation shaft sleeve is provided with a step for placing the bulge; when the lock pin is far away from the limiting through hole, the bulge on the lock pin can be clamped on the step of the mounting shaft sleeve, and then the lock pin can drive the mounting shaft sleeve to be synchronously far away from the limiting through hole; first spring receives the extrusion when spacing through-hole is kept away from to the installation axle sleeve and is in compression state, so when regulating switch switches from unblock state toward locking state, only need rotate regulating switch gently, first round pin axle on the regulating switch will be close to spacing through-hole under the effect of first spring elasticity, the lockpin will be automatic block to spacing through-hole in when first round pin axle is close to spacing through-hole, and first spring still is in compression state this moment, and adjusting part is in locking state. Only then can the external force rotate regulating switch and make first spring further compression, the lockpin just can break away from spacing through-hole like this, and adjusting part can switch to the unblock state. Therefore, the adjusting assembly can be stably maintained in the locked state without being affected by external force.

Preferably, the screw rod assembly further comprises a connecting seat, a check ring, a gasket, a wave washer and a limiting piece, wherein a first screw rod fixedly connected with the connecting seat is arranged at one end of the connecting seat, and a handle hinged with the connecting seat is arranged at the other end of the connecting seat; a threaded sleeve used for connecting a first screw rod is arranged in the connecting square pipe, the threaded sleeve is fixedly connected with the connecting square pipe, and threads meshed with the first screw rod are arranged in the threaded sleeve; the end, close to the connecting seat, of the first screw rod is provided with a columnar connecting part, the check ring and the gasket are sleeved on the columnar connecting part, the check ring and the gasket are respectively arranged on two sides of the telescopic square tube, one end face of the gasket abuts against the side wall of the telescopic square tube, and the other end face of the gasket abuts against the connecting seat; the columnar connecting part is provided with a fixing pin, and the check ring is installed on the columnar connecting part through the fixing pin and moves synchronously with the first screw rod.

The columnar connecting part on the first screw rod is limited on the telescopic square tube through the check ring and the gasket, and the first screw rod can only rotate relative to the telescopic square tube and cannot move relative to the telescopic square tube along the axial direction of the first screw rod. The handle rotates, and first lead screw will move relative to the threaded sleeve in the square tube of connection, will drive flexible square tube relative connection square tube and move when first lead screw removes, and first keeping silent is installed on square tube of connection, and the second is kept silent and is installed on flexible square tube, consequently just can conveniently adjust the relative position relation of first keeping silent and second keeping silent through the handle rotates to conveniently adjust the opening size of bench vice centre gripping product.

Preferably, a wave washer is arranged between the retaining ring and the side wall of the telescopic square pipe, the wave washer is sleeved on the columnar connecting part and contacts with the retaining ring and the side wall of the telescopic square pipe simultaneously.

Through setting up the wave form packing ring, first lead screw just can keep good concentricity with the thread bush like this, and first lead screw can not slip in the square pipe of stretching out and drawing back relatively at the pivoted in-process, and first lead screw just can keep the steady rotation like this, and the process that the square pipe of convenient relative connection that stretches out and draws back so removed is just more stable.

Preferably, the end of the columnar connecting part, which is close to the threaded sleeve, is provided with a limiting part fixedly connected with the columnar connecting part, and the limiting part is arranged adjacent to the threads on the first screw rod.

Through setting up the locating part, first lead screw rotates the in-process and drives the second and keeps silent when being close to first keeping silent, locating part on the column connecting portion is close to the thread bush in step, and when locating part and thread bush laminated each other, first lead screw can't further rotate, so the second keeps silent just can't further be close to first keeping silent. Therefore, the second jaw is prevented from being in mutual extrusion contact with the first jaw, and the first jaw or the limiting clamp on the second jaw is prevented from being damaged.

Preferably, the end of the connecting square pipe, which is far away from the telescopic square pipe, is provided with an extending square pipe detachably connected with the connecting square pipe, the extending square pipe is provided with a plurality of first through holes used for accommodating lock pins, and each first through hole and each limiting through hole are arranged on the same axis.

Through install one section extension side pipe on connecting square pipe again, the range of movement of first jaw on connecting square pipe is bigger then, and the lockpin on first jaw also can be gone into to first through-hole and make first jaw and extension side pipe keep stable connection state. Set up extension side's pipe, the first centre gripping interval of keeping silent with the second is just bigger, can the bigger product of centre gripping volume, and the commonality is better.

Preferably, a mounting bar for mounting the first jaw is arranged in the support base, two first screws for connecting the first jaw are arranged on the mounting bar, circular through holes are formed in the support base, each first screw is arranged close to the edge of each circular through hole, and the length of the mounting bar is larger than the diameter of each circular through hole.

The first jaw is mounted on the supporting base through a first screw, so that the relative orientation of the first jaw and the supporting base can be conveniently adjusted, and the first jaw can rotate relative to the supporting base. When the orientation of the first jaw needs to be adjusted, the first screw is taken out of the mounting bar, then the first jaw is rotated, and after the orientation of the first jaw is adjusted, the first screw is mounted on the mounting bar, so that the first jaw and the support base are kept fixed.

Preferably, the first jaw and the second jaw are respectively provided with a plurality of limit screw components for fixing the limit clamp, and each limit screw component comprises an installation threaded sleeve, an installation base, a second spring and a limit pin; the mounting base and the second spring are both arranged in the mounting screw sleeve, one end of the limiting pin is arranged in the mounting screw sleeve, and the other end of the limiting pin penetrates out of the mounting screw sleeve; the second spring is arranged between the mounting base and the limiting pin, one end of the second spring is abutted against the mounting base, and the other end of the second spring is abutted against the limiting pin; the mounting threaded sleeve is in threaded connection with the first jaw or the second jaw, and a plurality of positioning holes for mounting the limiting clamp are formed in the upper end face of the first jaw or the second jaw.

The first jaw or the second jaw can be provided with limiting clamps of different types, and the limiting clamps of different types can be used when clamping products of different shapes; the limiting clamp is fixed on the first jaw or the second jaw through a limiting screw assembly, and a circular limiting column extending into the positioning hole is arranged on the limiting clamp; the circular limiting column on the limiting clamp is firstly installed in the positioning hole of the first jaw or the positioning hole of the second jaw and then fixed through the limiting screw assembly; the mounting screw sleeve is in threaded connection with the first jaw or the second jaw, when the mounting screw sleeve is mounted on the first jaw or the second jaw, a limiting pin in the mounting screw sleeve penetrates out of the side face of the first jaw or the second jaw, and meanwhile the limiting pin can penetrate through a limiting clamp mounted on the first jaw or the second jaw; when the limiting clamp needs to be replaced, only the limiting pin needs to be pressed to be away from the limiting clamp, then the limiting clamp is pushed upwards, and the limiting clamp can be taken out from the corresponding first jaw or the corresponding second jaw. And then installing a new limiting clamp, wherein the installation thread sleeve is already installed on the corresponding first jaw or the second jaw, the limiting pin is only required to be pressed to move towards the first jaw or the second jaw, then the new limiting clamp is placed in the positioning hole of the first jaw or the second jaw, then the limiting pin automatically extends out of the surface of the limiting clamp under the action of the elastic force of the second spring, and the replacement of the limiting clamp is completed.

Compared with the prior art, the utility model discloses following beneficial effect has: the utility model is provided with a first jaw detachably connected with a support base, the first jaw is hollow and sleeved on a square connecting pipe, an adjusting component is arranged between the square connecting pipe and the first jaw, and the adjusting component has two states of locking and unlocking; when the adjusting assembly is in a locking state, the connecting square pipe cannot move relative to the first jaw; when the adjusting assembly is in an unlocking state, the connecting square pipe can move relative to the first jaw, a telescopic square pipe is arranged at the tail end of the connecting square pipe, and the second jaw is installed on the telescopic square pipe; the distance between the first jaw and the second jaw can be roughly adjusted in advance by adjusting the position of the connecting square pipe; then, the distance between the first jaw and the second jaw is accurately adjusted through a screw rod assembly at the tail end of the telescopic square tube, so that a product can be clamped and fixed when the second jaw is close to the first jaw; before fixing the product, make the adjusting part be in the unblock state earlier, adjust the position of connecting square pipe, then accommodate the lead screw subassembly makes the second keep silent and be close to first keeping silent, just so reduced the second keep silent the distance of removing, improved the centre gripping efficiency of product, the user is labour saving and time saving more when the centre gripping product. Meanwhile, when products with different thicknesses are clamped, the distance between the first jaw and the second jaw is determined through the adjusting assembly, the moving distance of the second jaw controlled by the screw rod assembly is reduced, and the clamp has good universality when products with different models are clamped. Therefore, the utility model discloses conveniently adjust the opening size of keeping silent, operation labour saving and time saving, the commonality is good.

Drawings

Fig. 1 is a perspective view of the present invention;

fig. 2 is a bottom view of the present invention;

fig. 3 is a left side view of the present invention;

FIG. 4 isbase:Sub>A cross-sectional view taken along line A-A of FIG. 2;

FIG. 5 is a cross-sectional view taken along line B-B of FIG. 3;

FIG. 6 is an internal structural view of the adjustment assembly;

FIG. 7 is an exploded view of the stop screw assembly;

FIG. 8 is a perspective view of a wave washer;

fig. 9 is a perspective view of the adjustment switch, the first pin and the rotation pin assembled with each other.

The mark in the figure is: 1. a support base; 2. connecting the square tubes; 3. a first jaw; 4. a second jaw; 5. an adjustment assembly; 51. a lock pin; 511. a protrusion; 52. an adjustment switch; 521. a contact portion; 53. a first pin shaft; 54. installing a shaft sleeve; 55. a first spring; 56. rotating the pin shaft; 57. a step; 6. a first screw; 7. a limiting through hole; 8. a screw assembly; 81. a first lead screw; 811. a columnar connecting portion; 82. a handle; 83. a connecting seat; 84. a retainer ring; 85. a gasket; 86. a wave washer; 87. a limiting member; 88. a fixing pin; 9. a stop screw assembly; 91. installing a threaded sleeve; 92. installing a base; 93. a second spring; 94. a spacing pin; 10. a U-shaped groove; 11. a threaded sleeve; 12. extending the square tube; 13. a first through hole; 14. mounting a bar; 15. a circular through hole; 16. a telescopic square tube; 17. and (7) positioning the holes.

Detailed Description

The invention will be further described with reference to the embodiments shown in the drawings to which:

as shown in fig. 1 to 9, the present embodiment discloses a bench vice convenient for adjusting a distance between jaws, which includes a supporting base 1, a square connecting tube 2, a first jaw 3, a second jaw 4, and an adjusting assembly 5 disposed between the first jaw 3 and the square connecting tube 2; the first jaw 3 is sleeved on the connecting square pipe 2 and is arranged on the supporting base 1 through a first screw 6; the adjusting assembly 5 comprises a lock pin 51 and an adjusting switch 52, the lock pin 51 is close to or far away from the connecting square pipe 2 while the adjusting switch 52 is rotated, and a plurality of limiting through holes 7 for containing the lock pin 51 are formed in the connecting square pipe 2; the connecting square tube 2 is provided with a telescopic square tube 16 capable of moving relative to the connecting square tube, and the second jaw 4 is sleeved on the telescopic square tube 16 and keeps moving synchronously with the telescopic square tube 16; be equipped with lead screw subassembly 8 on the flexible square pipe 16, lead screw subassembly 8 includes first lead screw 81 and handle 82, when turning handle 82 second on the flexible square pipe 16 is kept silent 4 and is close to or keeps away from first jaw 3.

The adjusting assembly 5 further comprises a first pin shaft 53, a mounting shaft sleeve 54, a first spring 55 and a rotating pin shaft 56, and the first jaw 3 is provided with a U-shaped groove 10 for mounting the adjusting assembly 5; the adjusting switch 52 is sleeved on the rotating pin shaft 56 and rotates synchronously with the rotating pin shaft 56, the adjusting switch 52 abuts against the outer wall of the U-shaped groove 10, and the rotating pin shaft 56 is close to or far away from the U-shaped groove 10 while the adjusting switch 52 rotates relative to the U-shaped groove 10; one end of the first pin shaft 53 is installed on the rotating pin shaft 56, and the other end of the first pin shaft passes through the U-shaped groove 10 and is connected with the lock pin 51; the lock pin 51 is sleeved at the tail end of the first pin shaft 53, and the mounting shaft sleeve 54 is arranged in the U-shaped groove 10 and sleeved on the outer layer of the lock pin 51; a first spring 55 for resetting the lock pin 51 is arranged between the mounting shaft sleeve 54 and the side wall of the U-shaped groove 10, the first spring 55 is sleeved on the mounting shaft sleeve 54, one end of the first spring 55 abuts against the inner wall of the U-shaped groove 10, and the other end of the first spring 55 abuts against the mounting shaft sleeve 54. The adjusting switch 52 is provided with a contact part 521 for rotating the pin shaft 56, the contact part 521 is a hollow cylindrical body with an eccentric structure, the rotating pin shaft 56 is installed in an eccentric area of the contact part 521, the contact part 521 abuts against the outer wall of the U-shaped groove 10, and the rotating pin shaft 56 is close to or far away from the U-shaped groove 10 when the contact part 521 rotates; the first pin shaft 53 is installed on the rotating pin shaft 56 and is perpendicular to the rotating pin shaft 56, and the rotating pin shaft 56 drives the first pin shaft 53 to move when moving. A lock pin 51 which moves synchronously with the first pin shaft 53 is arranged in the first pin shaft 53, and a protrusion 511 is arranged at the tail end of the lock pin 51; the outer layer of the lock pin 51 is provided with a mounting shaft sleeve 54, the mounting shaft sleeve 54 is provided with a step 57 for placing the protrusion 511, and the lock pin 51 is close to the regulating switch 52 and drives the mounting shaft sleeve 54 to be close to the regulating switch 52.

The screw rod assembly 8 further comprises a connecting seat 83, a retainer ring 84, a gasket 85, a wave washer 86 and a limiting member 87, wherein one end of the connecting seat 83 is provided with a first screw rod 81 fixedly connected with the connecting seat 83, and the other end of the connecting seat 83 is provided with a handle 82 hinged with the connecting seat 83; a threaded sleeve 11 used for connecting a first screw rod 81 is arranged in the connecting square tube 2, the threaded sleeve 11 is fixedly connected with the connecting square tube 2, and threads meshed with the first screw rod 81 are arranged in the threaded sleeve 11; a columnar connecting part 811 is arranged at the end of the first screw rod 81 close to the connecting seat 83, the retainer ring 84 and the gasket 85 are sleeved on the columnar connecting part 811, the retainer ring 84 and the gasket 85 are respectively arranged at two sides of the telescopic square tube 16, one end face of the gasket 85 abuts against the side wall of the telescopic square tube 16, and the other end face abuts against the connecting seat 83; the columnar connecting portion 811 is provided with a fixing pin 88, and the retainer ring 84 is mounted on the columnar connecting portion 811 by the fixing pin 88 and moves in synchronization with the first screw 81. A wave washer 86 is arranged between the retainer ring 84 and the side wall of the telescopic square tube 16, the wave washer 86 is sleeved on the columnar connecting part 811, and the wave washer 86 simultaneously contacts the retainer ring 84 and the side wall of the telescopic square tube 16. The end of the column-shaped connecting portion 811 close to the threaded sleeve 11 is provided with a limiting member 87 fixedly connected with the column-shaped connecting portion, and the limiting member 87 is arranged adjacent to the threads on the first screw rod 81.

The end of the square connecting pipe 2, which is far away from the telescopic square pipe 16, is provided with a square extending pipe 12 which is detachably connected with the square connecting pipe, the square extending pipe 12 is provided with a plurality of first through holes 13 for accommodating lock pins 51, and each of the first through holes 13 and each of the limiting through holes 7 are all arranged on the same axis. Support be equipped with the mounting bar 14 that is used for installing first 3 of keeping silent in the base 1, be equipped with two first screws 6 that are used for connecting first 3 of keeping silent on the mounting bar 14, be equipped with circular through-hole 15 in the support base 1, every first screw 6 is close to the edge setting of circular through-hole 15, the length of mounting bar 14 is greater than the diameter of circular through-hole 15. The first jaw 3 and the second jaw 4 are respectively provided with a plurality of limit screw assemblies 9 for fixing a limit clamp, and each limit screw assembly 9 comprises a mounting threaded sleeve 91, a mounting base 92, a second spring 93 and a limit pin 94; the mounting base 92 and the second spring 93 are both arranged in the mounting threaded sleeve 91, one end of the limiting pin 94 is arranged in the mounting threaded sleeve 91, and the other end of the limiting pin 94 penetrates out of the mounting threaded sleeve 91; the second spring 93 is arranged between the mounting base 92 and the limit pin 94, one end of the second spring 93 abuts against the mounting base 92, and the other end of the second spring 93 abuts against the limit pin 94; the mounting screw sleeve 91 is in threaded connection with the first jaw 3 or the second jaw 4, and a plurality of positioning holes 17 for mounting a limiting clamp are formed in the upper end face of the first jaw 3 or the second jaw 4.

The specific operation process of the embodiment is as follows, firstly fixing the supporting base 1 on the working table, and then starting to switch the working state of the adjusting component 5; the adjusting component 5 has two working states of a locking state and an unlocking state; lockpin 51 alternates in spacing through-hole 7 under the default condition, rotates regulating switch 52 and makes rotation pin 56 keep away from U type recess 10, and first round pin axle 53 will drive lockpin 51 and keep away from spacing through-hole 7 when rotation pin 56 keeps away from U type recess 10, has lost lockpin 51's spacing just can keep relative movement between first jaw 3 and the square 2 of connecting, and adjusting part 5 is in the unblock state this moment. When the lock pin 51 is far away from the limiting through hole 7, the mounting shaft sleeve 54 is synchronously far away from the limiting through hole 7, and when the mounting shaft sleeve 54 is far away from the limiting through hole 7, the first spring 55 is extruded to be in a compressed state. The first jaw 3 is adjusted to a position which needs to be installed actually, meanwhile, the lock pin 51 is aligned to another limiting through hole 7 in the square connecting pipe 2, then the adjusting switch 52 is rotated to drive the rotating pin 56 to be close to the limiting through hole 7, so that the elastic force generated by the first spring 55 can push the mounting shaft sleeve 54 to be close to the limiting through hole 7, the lock pin can extend into the limiting through hole 7 when the mounting shaft sleeve 54 is close to the limiting through hole 7, the adjusting assembly 5 is in a locking state at the moment, and the first jaw 3 and the square connecting pipe 2 cannot move relatively due to limitation of the lock pin 51.

Then, the distance between the first jaw 3 and the second jaw 4 is accurately adjusted through the screw rod assembly 8, and the adjusting process is as follows: the handle 82 is rotated, the first screw rod 81 moves relative to the thread sleeve 11 in the square connecting tube 2, the first screw rod 81 moves while driving the square telescopic tube 16 to move relative to the square connecting tube 2, the first jaw 3 is installed on the square connecting tube 2, and the second jaw 4 is installed on the square telescopic tube 16, so that the relative position relationship between the first jaw 3 and the second jaw 4 can be conveniently adjusted by rotating the handle 82, and the opening size of a bench vice for clamping a product can be conveniently adjusted. The product to be clamped is placed between the first jaw 3 and the second jaw 4, and the second jaw 4 is close to the first jaw 3 when the handle 82 is rotated, so that the product is clamped.

The specific embodiments described herein are merely illustrative of the spirit of the invention. Various modifications, additions and substitutions for the specific embodiments described herein may be made by those skilled in the art without departing from the spirit of the invention or exceeding the scope of the invention as defined in the accompanying claims.

Claims (10)

1. A bench vice convenient for adjusting the distance between jaws is characterized by comprising a supporting base (1), a connecting square tube (2), a first jaw (3) and a second jaw (4), and further comprising an adjusting component (5) arranged between the first jaw (3) and the connecting square tube (2); the first jaw (3) is sleeved on the connecting square pipe (2) and is arranged on the supporting base (1) through a first screw (6); the adjusting assembly (5) comprises a lock pin (51) and an adjusting switch (52), the lock pin (51) is close to or far away from the connecting square pipe (2) when the adjusting switch (52) is rotated, and a plurality of limiting through holes (7) for containing the lock pin (51) are formed in the connecting square pipe (2); the connecting square pipe (2) is provided with a telescopic square pipe (16) capable of moving relative to the connecting square pipe, and the second jaw (4) is sleeved on the telescopic square pipe (16) and keeps moving synchronously with the telescopic square pipe; be equipped with lead screw subassembly (8) on flexible side pipe (16), lead screw subassembly (8) include first lead screw (81) and handle (82), when twist grip (82) second on the flexible side pipe (16) is kept silent (4) and is close to or keeps away from first keeping silent (3).

2. The bench vice facilitating the adjustment of the jaw distance according to claim 1, wherein the adjusting assembly (5) further comprises a first pin (53), a mounting bushing (54), a first spring (55) and a rotating pin (56), and the first jaw (3) is provided with a U-shaped groove (10) for mounting the adjusting assembly (5); the adjusting switch (52) is sleeved on the rotating pin shaft (56) and rotates synchronously with the rotating pin shaft, the adjusting switch (52) abuts against the outer wall of the U-shaped groove (10), and the rotating pin shaft (56) is close to or far away from the U-shaped groove (10) when the adjusting switch (52) rotates relative to the U-shaped groove (10); one end of the first pin shaft (53) is arranged on the rotating pin shaft (56), and the other end of the first pin shaft penetrates through the U-shaped groove (10) to be connected with the lock pin (51); the lock pin (51) is sleeved at the tail end of the first pin shaft (53), and the mounting shaft sleeve (54) is arranged in the U-shaped groove (10) and sleeved on the outer layer of the lock pin (51); a first spring (55) for resetting the lock pin (51) is arranged between the mounting shaft sleeve (54) and the side wall of the U-shaped groove (10), the first spring (55) is sleeved on the mounting shaft sleeve (54), one end of the first spring (55) abuts against the inner wall of the U-shaped groove (10), and the other end of the first spring (55) abuts against the mounting shaft sleeve (54).

3. The bench vice facilitating the adjustment of the jaw distance according to claim 2, wherein the adjusting switch (52) is provided with a contact portion (521) for rotating the pin (56), the contact portion (521) is a hollow cylindrical body with an eccentric structure, the rotating pin (56) is installed in an eccentric area of the contact portion (521), the contact portion (521) abuts against an outer wall of the U-shaped groove (10), and the rotating pin (56) approaches or leaves the U-shaped groove (10) while the contact portion (521) rotates; the first pin shaft (53) is arranged on the rotating pin shaft (56) and is perpendicular to the rotating pin shaft, and the rotating pin shaft (56) drives the first pin shaft (53) to move when moving.

4. The vise facilitating adjustment of jaw distance according to claim 2, where a lock pin (51) is provided in the first pin (53) to move synchronously therewith, and a protrusion (511) is provided at a tip of the lock pin (51); the outer layer of the lock pin (51) is provided with a mounting shaft sleeve (54), the mounting shaft sleeve (54) is provided with a step (57) for placing the protrusion (511), and the lock pin (51) is close to the regulating switch (52) and drives the mounting shaft sleeve (54) to be close to the regulating switch (52).

5. The bench vice facilitating the adjustment of the jaw distance according to claim 1, wherein the screw assembly (8) further comprises a connecting seat (83), a retainer ring (84), a gasket (85), a wave washer (86) and a stopper (87), one end of the connecting seat (83) is provided with a first screw (81) fixedly connected with the connecting seat, and the other end of the connecting seat (83) is provided with a handle (82) hinged with the connecting seat; a threaded sleeve (11) used for connecting a first screw rod (81) is arranged in the connecting square pipe (2), the threaded sleeve (11) is fixedly connected with the connecting square pipe (2), and threads meshed with the first screw rod (81) are arranged in the threaded sleeve (11); the end, close to the connecting seat (83), of the first screw rod (81) is provided with a columnar connecting portion (811), the retainer ring (84) and the gasket (85) are sleeved on the columnar connecting portion (811), the retainer ring (84) and the gasket (85) are arranged on two sides of the telescopic square tube (16) respectively, one end face of the gasket (85) abuts against the side wall of the telescopic square tube (16), and the other end face of the gasket (85) abuts against the connecting seat (83); the fixing pin (88) is arranged on the columnar connecting portion (811), and the retainer ring (84) is installed on the columnar connecting portion (811) through the fixing pin (88) and moves synchronously with the first screw rod (81).

6. The bench vice facilitating the adjustment of the jaw distance according to claim 5, wherein a wave washer (86) is disposed between the retainer ring (84) and the side wall of the square telescopic tube (16), the wave washer (86) is sleeved on the column-shaped connecting portion (811), and the wave washer (86) contacts the retainer ring (84) and the side wall of the square telescopic tube (16) simultaneously.

7. A bench vice facilitating adjustment of the jaw distance, according to claim 5, wherein the end of the cylindrical connecting portion (811) near the threaded sleeve (11) is provided with a stop (87) fixedly connected thereto, the stop (87) being arranged adjacent to the thread on the first screw (81).

8. The bench vice convenient for adjusting the distance between the jaws according to claim 1, wherein the end of the square connecting tube (2) far away from the square telescopic tube (16) is provided with a square extending tube (12) detachably connected with the square connecting tube, the square extending tube (12) is provided with a plurality of first through holes (13) for accommodating lock pins (51), and each first through hole (13) and each limiting through hole (7) are arranged on the same axis.

9. The bench vice convenient for adjusting the distance between the jaws as claimed in claim 1, wherein a mounting bar (14) for mounting the first jaw (3) is provided in the supporting base (1), two first screws (6) for connecting the first jaw (3) are provided on the mounting bar (14), a circular through hole (15) is provided in the supporting base (1), each first screw (6) is provided near the edge of the circular through hole (15), and the length of the mounting bar (14) is greater than the diameter of the circular through hole (15).

10. The bench vice convenient for adjusting the jaw distance according to claim 1, wherein a plurality of limit screw assemblies (9) for fixing a limit clamp are arranged on each of the first jaw (3) and the second jaw (4), and each limit screw assembly (9) comprises a mounting threaded sleeve (91), a mounting base (92), a second spring (93) and a limit pin (94); the mounting base (92) and the second spring (93) are arranged in the mounting threaded sleeve (91), one end of the limiting pin (94) is arranged in the mounting threaded sleeve (91), and the other end of the limiting pin (94) penetrates out of the mounting threaded sleeve (91); the second spring (93) is arranged between the mounting base (92) and the limiting pin (94), one end of the second spring (93) abuts against the mounting base (92), and the other end of the second spring (93) abuts against the limiting pin (94); the mounting screw sleeve (91) is in threaded connection with the first jaw (3) or the second jaw (4), and a plurality of positioning holes (17) for mounting a limiting clamp are formed in the upper end face of the first jaw (3) or the second jaw (4).

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