TWI804374B - Precision vise with quick jaw change without tools - Google Patents

Abstract

The invention discloses a precision vise that can quickly replace jaws without using tools. It includes a screw rod in the screw rod space of a base, and the screw rod is screwed with two nut seats, so that the two nut seats move in the screw rod space and drive each nut seat. A jaw assembled on the nut seat is used for clamping. In particular, the inside of the jaw has a double-slope chamber, and the front and rear ends of the double-slope chamber have two symmetrical first slopes; the upper end of the nut seat has an actuation block, and the front end of the actuation block forms a second slope. And the rear end surface is provided with a shrapnel; thereby, the bottom surface of the jaw can be assembled on the nut seat downwards, so that the second slope of the actuating block is against the first slope of the double-slope chamber, and the shrapnel elastically leans against On the other first slope of the double-slope chamber; otherwise, the jaws can be pulled up directly to separate the jaws from the nut seat, so that the installation direction of the jaws can be changed or the jaws can be replaced without tools.

Description

Precision vise with quick jaw change without tools

The invention relates to the technical field of vices, in particular to a precision vice that can quickly replace jaws without using tools.

The structure of the traditional vise is shown in Figure 1. It is mainly implemented with a base 100. There are two parallel slide rails 101 on the base 100. The front ends of the two slide rails 101 are provided with a fixed jaw 102 integrally formed or assembled and fixed. The two slide rails 101 is provided with a movable jaw 103, so that the movable jaw 103 can be operated and moved by a screw rod 104 and a nut seat 105, and is used to clamp the workpiece together with the fixed jaw 102. Wherein, the lower surface of the movable jaw 103 is provided with an inner cavity 1031, and the front of the inner cavity 1031 has a first slope 1032, and the first slope 1032 is provided with a spherical concave hole 1033, and the spherical concave hole 1033 is inserted into a semicircular sphere. 106. On the contrary, the front of the nut seat 105 is provided with a second slope 1051 , so that the plane of the hemisphere 106 abuts against the second slope 1051 of the nut seat 105 . In order to make the plane of the semicircular sphere 106 continuously lean against the second inclined surface 1051, a plurality of screws 107 and springs 108 will be implemented at the rear end of the movable jaw 103, and the rear end surface of the nut seat 105 will be pushed by the screws 107 and springs 108 to promote the semicircular The plane of the ball 106 abuts against the second slope 1051 . Thereby, through the structure of the movable jaw 103, the nut seat 105, the hemispherical body 106, the screw 107 and the spring 108, it is possible to prevent the movable jaw 103 from floating up or down when clamping the workpiece.

However, the workpieces to be clamped by today’s vises vary in size. For large workpieces, the opening distance between the fixed jaw 102 and the movable jaw 103 must be maximized; for small workpieces, only the opening distance between the fixed jaw 102 and the movable jaw 103 is required. smaller. Furthermore, the clamping surface of the conventional movable jaw 103 is tied to its front end, even if the movable jaw 103 is pulled to the maximum limit, there may still be insufficient openings to clamp large workpieces. For this reason, only by allowing the movable jaw 103 of the vise to change or convert the direction of the movable jaw 103, can it adapt to larger workpieces. However, the above-mentioned assembly structure of the movable jaw 103 of the conventional vise limits the possibility of reversing the movable jaw 103. In addition, tools must be used to disassemble the screw 107 and the spring 108 during replacement, which causes more troubles in use. For this reason, how to make the movable jaw 103 of the vise can be replaced quickly is the problem to be actively overcome by the present invention.

The main purpose of the present invention is to provide a precision vise that can quickly replace the jaws without using tools. Through the improvement of the assembly structure of the jaws and the nut seat on the vise, the user can disassemble and replace the jaws without using tools. Jaw, to achieve the purpose of easy and quick replacement or change of direction of the clamping jaw.

The second object of the present invention is to provide a precision vise that can quickly replace the jaws without using tools, which prevents the jaws from lifting or The purpose of pressing down.

In order to achieve the above object, the present invention is a precision vise that can quickly replace the jaws without using tools. Screw space; a screw, which is horizontally arranged in the screw space of the base, one end of which protrudes from the end of the base and constitutes a force-applying operation part; two nut seats, which are respectively movably arranged in the screw space of the base , so that the screw rods are respectively threaded and screwed on the two nut seats to drive the two nut seats to move; and two jaws, which are combined on the two nut seats to clamp a workpiece, are characterized in that:

The interior of the jaw forms a double-slope chamber, the double-slope chamber has a bottom opening on the bottom of the jaw, a chamber top opposite to the bottom opening, and symmetrical front and rear ends. Two first slopes, each of which is an inclined plane connecting obliquely upwards from the bottom opening to the top surface of the chamber, and the width of the bottom opening is smaller than the width of the top surface of the chamber.

The upper end of each nut seat has an actuating block, the front end surface of the actuating block forms a second inclined plane, the second inclined plane is an inclined plane obliquely downward, and the actuating block is opposite to the rear end surface of the second inclined plane At least one elastic piece is provided, and the free end of the elastic piece has a holding portion, and the width between the holding portion and the upper end of the second slope is greater than the width of the bottom opening of the jaw.

When the jaw is assembled on the nut seat downwards, the pressing part of the elastic piece is contracted and passes through the bottom opening, so that the actuating block penetrates the bottom opening and is arranged in the double-slope chamber; the actuating The block presents in the double-slope chamber that the second slope abuts against a first slope in the double-slope chamber, and the pressing portion of the elastic piece elastically abuts against the other first slope in the double-slope chamber. The holding portion generates an elastic thrust against the second inclined surface; and when the jaw is pulled up, the pressing portion of the shrapnel shrinks and passes through the bottom opening, causing the double-slope chamber to disengage. the actuator block.

In the above-mentioned precision vise that can quickly replace the jaws without using tools, the elastic piece has a fixing part, and the pressing part is integrally connected to the fixing part. The pressing portion is formed as a ㄑ-shaped piece, and the tip of the ㄑ-shaped piece protrudes laterally from the groove and the rear end surface of the actuating block. The rear end surface of the actuating block is provided with at least one groove, and the fixing part of the elastic sheet is locked in the groove by a screw. More specifically, the rear end surface of the actuating block is provided with two grooves, each of which is provided with the elastic piece, so that the rear end surface of the actuating block has two elastic pieces.

In the above-mentioned precision vise that can quickly replace the jaws without using tools, the second inclined surface of the actuating block is provided with a semi-circular groove, and the axis of the semi-circular groove is parallel to the second inclined surface; Rotating half cylinder, the axis of the half cylinder is parallel to the second slope, the half cylinder has a pressing plane corresponding to the first slope of the jaw, and the pressing plane is against the first slope.

In the above-mentioned precision vise that can quickly replace the jaws without using tools, the top surface of the jaws has a clamping protrusion, and the front and rear ends of the clamping protrusion are respectively provided with a supporting groove for placing the workpiece.

In the above-mentioned precision vise that can quickly replace the jaws without using tools, the screw rod is divided into two threaded sections with the middle part as the boundary, one of which is a left-handed thread, and is screwed into one of the nut seats; the other threaded section It is a right-handed thread and is screwed into the other nut seat to form a two-way precision vise.

In the above-mentioned precision vise that can quickly replace the jaws without using tools, the nut seat has a screw hole matching the screw rod. An installation space with the same shaft center and a diameter larger than the screw rod; a compression shrapnel, a wiper and a buckle are sequentially installed in the installation space, and the buckle restricts the wiper and the compression shrapnel to the installation space. in space.

The present invention is a precision vise that can quickly replace the jaws without using tools, and can achieve the following effects:

(1) The jaw direction can be changed without disassembling with tools. In the present invention, through the two first slope structures of the double-slope chamber inside the jaw, and the structure of the second slope and the shrapnel of the actuating block of the nut seat, the jaw can be assembled on the nut seat in a vertical direction, and reversed. Pull out the jaws vertically, so you can easily change the direction of the jaws without using tools such as screwdrivers, change the opening width between the two jaws, and quickly apply to clamping large or small workpieces.

(2) Different jaws can be replaced without dismantling with tools. Through the above principles, the present invention can also conveniently replace the jaws of other different clamping protrusions without tools for disassembly and assembly.

(3) It has the function of preventing floating and pressing down. According to the present invention, the pressing part of the shrapnel elastically abuts against the other first slope in the double slope chamber, so that the actuating block presents the second slope in the double slope chamber against the semi-cylindrical A first slope of the double-slope chamber can achieve the locking function of preventing the clamp jaw from floating up and down.

(4) Prevent the intrusion of iron filings. The nut seat of the present invention is provided with compressed shrapnel, a wiper and a retaining ring, which can prevent iron filings from intruding into the working area between the screw rod and the screw hole, and ensure the smooth operation and precision of the vise.

The structural features and other effects and purposes of the present invention are described in detail as follows according to the accompanying drawings:

Referring to Fig. 2, Fig. 3 and shown in Fig. 4, the precision vise of the present invention promptly can change jaw quickly without tools, and its preferred specific embodiment comprises: a base 10, and it is common structure, mainly has parallel Two slide rails 11, and a screw space 12 formed between the two slide rails 11. A screw 20 is horizontally arranged in the screw space 12 of the base 10, one end of which protrudes from the end of the base 10 and constitutes a force application operation part 21, which can be a hexagonal tool joint as shown in the figure , can also be implemented as an oil hydraulic device or other known structures of various rotatable screw rods 20 . Two nut seats 30 are respectively movably arranged in the screw space 12 of the base 10, so that the screw rods 20 are respectively inserted and screwed into the two nut seats 30 to drive the two nut seats 30 to move; and two The clamping jaw 40 is a block for clamping a workpiece, which is assembled on the two nut seats 30 for clamping a workpiece. The main technical feature of the present invention is the assembly structure of the two jaws 40 and the two nut seats 30, so that the two jaws 40 can be assembled and disassembled with the nut seats 30 without hand tools, and the use of the jaws 40 can be converted. Direction (as shown in Figure 8 and Figure 9), or change to other different jaws, its preferred embodiment is:

Referring to Fig. 3 to Fig. 6, the inside of the jaw 40 forms a double-slope chamber 41, and the double-slope chamber 41 has a bottom opening 42 located at the bottom of the jaw 40, opposite to a bottom opening 42. The top surface 43 of the chamber, and two first slopes 44, 45 located at the front and rear ends and symmetrical to each other, each of the first slopes 44, 45 is connected to the chamber obliquely upward from the front and rear sides of the bottom opening 42 The inclined plane of the top surface 43 further forms a structure in which the width W1 of the bottom opening 42 is smaller than the width W2 of the top surface 43 of the chamber. The upper end of the nut seat 30 has an actuating block 31, and the front end surface of the actuating block 31 forms a second inclined plane 32, which is an inclined plane obliquely downward; the actuating block 31 is opposite to the second inclined plane. At least one elastic piece 33 is provided on the rear end surface of the inclined surface 32 , the free end of the elastic piece 33 has a holding portion 331 , and the width W3 between the holding portion 331 and the upper end of the second inclined surface 32 is larger than the bottom surface of the jaw 40 The width W1 of the opening 42 .

With the above structure, when the clamping jaw 40 is assembled downwards on the nut seat 30, the holding portion 331 of the elastic piece 33 is pressed through the bottom opening 42 of the double-slope chamber 41, so that the holding portion 331 of the elastic piece 33 After being shrunk, the actuating block 31 of the nut seat 30 passes through the bottom opening 42 and is disposed in the double-slope chamber 41 . When the actuating block 31 is in the double-slope chamber 41, its second slope 32 abuts against a first slope 44 of the double-slope chamber 41; Leaning against the other first slope 45 of the double-slope chamber 41 , the pressing portion 331 generates an elastic thrust against the first slope 45 against which the second slope 32 of the actuating block 31 It is in close contact with the first slope 44 . Referring to Fig. 12, when the user wants to disassemble the jaw 40 for replacement, he only needs to turn up the rear end of the jaw 40 by hand, and make the pressing part 331 of the elastic piece 33 contract and pass through the opening 42 on the bottom surface. The double-slope chamber 41 is disengaged from the actuating block 31 , and the jaw 40 is separated from the nut seat 30 . Conversely, the clamp jaw 40 can also be pressed down by hand in the opposite action, so that the bottom opening 42 passes through the pressing portion 331 of the elastic piece 33 , and the clamp jaw 40 is installed on the nut seat 30 .

It can be seen from the above that the present invention does not need to use a screwdriver to loosen the conventional screw assembly structure when assembling and disassembling the jaw 40 . And because the front and rear end walls in the double-slope chamber 41 of the jaw 40 form two first slopes 44, 45, the user can switch the installation direction of the jaw 40 according to the actual situation. Specifically, as shown in FIG. 8 , a clamping protrusion 46 is horizontally provided on the top surface of the clamping jaw 40 , and the position of the clamping protrusion 46 is adjacent to one end of the clamping jaw 40 . The ends are respectively provided with a supporting groove 461, 462 for placing workpieces. Therefore, as shown in FIG. 8 , when the user wants to clamp a workpiece 50 with a general size L1, the workpiece 50 can be clamped in the installation and use direction of the aforementioned jaws 40 . Referring to Fig. 9 again, if the workpiece 60 with a large size L2 is clamped, the jaw 40 can be disassembled in the above-mentioned manner, and then the direction can be reversed and assembled on the nut seat 30, and the second inclined surface 32 of the actuating block 31 can be replaced with Pressing against the other first slope 45 of the double-slope chamber 41, the upper clamping protrusion 46 can be changed to a position closer to the two ends of the base 10, so it can be easily changed to clamp a workpiece 60 with a large size L2 . In the same way, the present invention can implement different clamping structures on the jaws 40 to provide free replacement.

Referring again to Fig. 3 and shown in Fig. 5, one of the preferred embodiments of the elastic piece 33 of the present invention is to implement a fixing part 332 at the lower end, and the pressing part 331 is integrally connected on the fixing part 332, the pressing The portion 331 is preferably stamped into a ㄑ-shaped piece, so that the tip of the ㄑ-shaped piece protrudes laterally from the rear end surface of the actuating block 31 to form a structure capable of pressing against the first inclined surface 44 or 45 . Furthermore, at least one groove 311 can be formed on the rear surface of the actuating block 31 , and the fixing portion 332 of the elastic piece 33 is locked in the groove 311 by a screw 333 . In one of the preferred embodiments, two grooves 311 are provided on the rear end surface of the actuating block 31 , and the elastic piece 33 is disposed in each groove 311 , so that the rear end surface of the actuating block 31 has two elastic pieces 33 .

Referring again to FIG. 3 and FIG. 7 , the second inclined surface 32 of the actuating block 31 of the present invention can be provided with a semicircular groove 34 , and the axis of the semicircular groove 34 is parallel to the second inclined surface 32 . Furthermore, a rotatable half cylinder 35 is provided in the semicircular groove 34, and the axis of the half cylinder 35 is also parallel to the second slope 32. The half cylinder 35 has first slopes 44, 45 corresponding to the jaws 40. When the jaw 40 is assembled, the pressing plane 351 abuts against the first inclined surface 44 or 45, thereby achieving the locking function of preventing the jaw from floating up and down. Referring to Fig. 10 together, when there is an error in the size of the left and right ends of the workpiece so that an angle δ occurs, the present invention can make the clamping jaw 40 touch the When the workpiece is rotated slightly from left to right, the clamping surface of the jaw 40 is matched to the angle δ of the workpiece, so that the skewed surface of the workpiece can be completely clamped. Referring to shown in Figure 11, the present invention also can make jaw 40 produce a horizontal component force Fx, a vertical component force Fy and A resultant force F, the horizontal component force Fx makes the jaw 40 push the workpiece horizontally, the vertical component force Fy can prevent the jaw 40 from floating up, and the resultant force F can pre-clamp the jaw 40 and the workpiece to tilt upward.

Referring again to Fig. 2 and shown in Fig. 3, the screw rod 20 of the present invention is divided into two threaded sections 22, 23 with the middle part as the boundary, wherein one threaded section 22 is a left-handed thread, and is screwed in one of the nut seats 30; The threaded section 23 is a right-handed thread, and is screwed into another nut seat 30, thereby implementing the present invention as a two-way precision vise for quickly clamping workpieces.

Also referring to Fig. 13, the nut base 30 of the present invention has a screw hole 36 matching the screw rod 20, the screw hole 36 communicates with the front and rear ends of the nut base 30, and the front and rear ends are respectively provided with the same axial center as the screw rod 20. And the diameter is greater than an installation space 361 of the screw rod 20, and then a commercially available compression shrapnel 37, a wiper 38 and a buckle 39 are sequentially loaded into the installation space 361, and the buckle 39 will wiper 38 and the compressed elastic piece 37 are limited in the installation space 361, and the wiper 38 is fixed in the screw hole 36 by a radial screw 381, so as to prevent the intrusion of iron filings.

To sum up, the precision vise of the present invention, which can quickly replace the jaws without using tools, is indeed practical and creative. It is called reasonable progress to Ming. For this reason, I filed an invention patent application in accordance with the law, but I sincerely hope that the Jun Bureau will give you a detailed review and pray for the grant of the patent. I am very grateful.

[Knowledge part] 100: base 101: slide rail 102: fixed jaw 103: movable jaw 1031: inner cavity 1032: first bevel 1033: spherical concave hole 104: screw 105: nut seat 1051: second slope 106: Semi-circular sphere 107: screw 108: spring [Part of the present invention] 10: base 11: slide rail 12: Screw space 20: screw 21: Force operation department 22, 23: Thread segment 30: nut seat 31: Actuation block 311: Groove 32: second slope 33: Shrapnel 331: Pressing part 332: fixed part 333: screw 34: Semicircle groove 35: half cylinder 351: Pressure plane 36: screw hole 361: Installation space 37: Compression shrapnel 38: scraper 381: radial screw 39: Buckle W3: width 40: jaw 41: double slope chamber 42: Bottom opening 43: the top surface of the chamber 44, 45: the first slope 46: clamping protrusion 461, 462: support groove W1, W2: Width 50, 60: workpiece L1, L2: Dimensions δ: angle Fx: horizontal force Fy: vertical force component F: Heli

[Fig. 1] is a cross-sectional schematic diagram of a conventional vise structure. [Fig. 2] It is a three-dimensional schematic diagram of the appearance of a preferred embodiment of the precision vise of the present invention. [ Fig. 3 ] is a side view cross-sectional schematic diagram of a preferred embodiment of the precision vise of the present invention. [ Fig. 4 ] is a top view partial cross-sectional schematic diagram of a preferred embodiment of the precision vise of the present invention. [ Fig. 5 ] is a schematic cross-sectional view of a preferred embodiment of the precision vise of the present invention. [FIG. 6] It is an exploded cross-sectional schematic view of a preferred embodiment of the nut seat and jaws of the present invention. [FIG. 7] It is an exploded perspective view of a preferred embodiment of a nut seat and a half cylinder of the present invention. [ FIG. 8 ] is a schematic diagram of the clamping jaw of the precision vise of the present invention clamping the workpiece in the first direction. [ Fig. 9 ] is a schematic diagram of the clamping jaw of the precision vise of the present invention being converted to the second direction to clamp the workpiece. [ Fig. 10 ] is a top view schematic diagram of the relationship between the semi-cylindrical and jaws of the precision vise of the present invention for clamping workpieces. [ Fig. 11 ] is a schematic diagram of the action and direction of the semi-cylindrical and jaw force of the precision vise of the present invention. [Fig. 12] It is a schematic diagram of the precision vise of the present invention without using tools and opening or pressing down to replace the jaws by hand. [FIG. 13] It is a schematic diagram of the drive screw and the nut seat provided with the anti-shavings intrusion device of the present invention.

10: Base

12: Screw space

20: screw

21: Force operation department

22, 23: Thread segment

30: nut seat

31: Actuation block

311: Groove

33: Shrapnel

331: Pressing part

332: fixed part

333: screw

35: half cylinder

351: Pressure plane

40: jaw

41: double slope chamber

44, 45: the first slope

46: clamping protrusion

461, 462: support groove

Claims (9)

A precision vise that can quickly replace jaws without tools, which includes: a base with two parallel slide rails, and a screw space formed between the two slide rails; a screw, which is horizontally arranged on In the screw space of the base, one end protrudes from the end of the base and constitutes a force-applying operation part; two nut seats are respectively movably arranged in the screw space of the base, so that the screws are respectively inserted and screwed together. The two nut seats are used to drive the two nut seats to move; and the two jaws are combined on the two nut seats to clamp a workpiece, which is characterized in that: The interior of the jaw forms a double-slope chamber, the double-slope chamber has a bottom opening on the bottom of the jaw, a chamber top opposite to the bottom opening, and symmetrical front and rear ends. Two first slopes, each of which is an inclined plane connecting obliquely upwards from the bottom opening to the top surface of the chamber, and the width of the bottom opening is smaller than the width of the top surface of the chamber; The upper end of each nut seat has an actuating block, the front end surface of the actuating block forms a second inclined plane, the second inclined plane is an inclined plane obliquely downward, and the actuating block is opposite to the rear end surface of the second inclined plane At least one elastic piece is provided, the free end of the elastic piece has a pressing portion, and the width between the pressing portion and the upper end of the second slope is greater than the width of the bottom opening of the jaw; When the jaw is assembled on the nut seat downwards, the pressing part of the elastic piece is contracted and passed through the bottom opening, so that the actuating block penetrates the bottom opening and is arranged in the double-slope chamber; the actuating In the double-slope chamber, the block presents that the second slope abuts against a first slope in the double-slope chamber, and the pressing part of the shrapnel elastically abuts against the other first slope in the double-slope chamber. inclined surface, the holding portion generates an elastic thrust against the first inclined surface; and when the jaw is pulled up, the holding portion of the shrapnel shrinks and passes through the bottom opening, causing the double-slope chamber to disengage the actuator block. According to claim 1, the tool-free precision vise capable of quickly replacing jaws, wherein the shrapnel has a fixing part, and the pressing part is integrally connected to the fixing part. The tool-free precision vice that can quickly replace the jaws as described in claim 2, wherein the rear end surface of the actuating block is provided with at least one groove, and the fixing part of the elastic piece is locked in the groove by a screw middle. The tool-free precision vice that can quickly replace the jaws as described in claim 3, wherein the pressing part is formed as a ㄑ-shaped piece, and the tip of the ㄑ-shaped piece protrudes laterally from the groove and the actuation The back face of the block. The tool-free precision vise that can quickly replace the jaws as described in claim 4, wherein the rear end surface of the actuating block is provided with two grooves, and each of the grooves is provided with the shrapnel, so that the actuating block The rear end face has two shrapnel. The tool-free precision vice that can quickly replace the jaws as described in claim 1, wherein the second inclined surface of the actuating block is provided with a semi-circular groove, and the axis of the semi-circular groove is parallel to the second inclined surface; A rotatable half cylinder is provided in the semicircular groove, the axis of the half cylinder is parallel to the second slope, the half cylinder has a pressing plane corresponding to the first slope of the jaw, and the pressing plane leans against the the first slope. The tool-free precision vice that can quickly replace the jaws as described in claim 1, wherein the top surface of the jaws has a clamping protrusion, and the front and rear ends of the clamping protrusion are respectively equipped with a support slot. The tool-free precision vise that can quickly replace the jaws as described in claim item 1, wherein the screw rod is divided into two thread segments with the middle part as the boundary, one of which is a left-handed thread, and is screwed into one of the nut seats ; The other thread segment is a right-handed thread, and is screwed into another nut seat. The tool-free precision vise that can quickly replace the jaws as described in claim 1, wherein the nut seat has a screw hole matching the screw rod, the screw hole is connected to the front and rear ends of the nut seat, and the front and rear ends An installation space with the same axis as the screw rod and a diameter larger than the screw rod is respectively provided; a compression shrapnel, a wiper and a buckle are sequentially installed in the installation space, and the buckle connects the wiper to the The compression shrapnel is confined in this installation space.

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