High-precision quick-acting flat tongs

Abstract

The utility model relates to the technical field of flat tongs, in particular to a high-precision quick-acting flat tongs which comprise a base, a fixing piece, a first fixing tong, a second fixing tong, a supporting seat, a supporting opening, a threaded rod and a position adjusting mechanism, the fixing piece is fixedly arranged on the base, the first fixing tong is fixedly arranged on the fixing piece, and the second fixing tong is fixedly arranged on the supporting opening. The second fixing clamp is arranged on the fixing piece in a sliding mode, the supporting seat is fixedly arranged on the fixing piece, the number of the supporting openings is two, the two supporting openings are formed in the supporting seat, the threaded rod and the supporting openings are correspondingly and fixedly arranged on the second fixing clamp, the threaded rod penetrates through the supporting openings, and the position adjusting mechanism is arranged on the fixing piece. By means of the technical scheme, the problem that in the prior art, when flat tongs are in the clamping state, due to vibration of a workpiece, the movable tong block is prone to position deviation, and then the clamping precision is affected is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of flat-nose pliers, in particular to a high-precision quick-action flat-nose pliers. Background Art

[0002] The full name of flat-nose pliers is machine flat-nose vise, which is a machine tool accessory used to fix the workpiece on a radial drilling machine for cutting processing. The main principle of using flat-nose pliers is to use a wrench to rotate the lead screw, and by rotating the lead screw nut, the flat-nose pliers can clamp and loosen the workpiece.

[0003] For example, the utility model patent with publication number CN204160210U discloses a high-precision quick-action flat-nose pliers, including a base, a nut seat, a screw, a first fixed jaw block, a second fixed jaw block, and a movable jaw block, the movable jaw block forms a first jaw and a second jaw with the first fixed jaw block and the second fixed jaw block respectively, the first fixed jaw block and the second fixed jaw block are both fixedly mounted on the base, the first clamping surface and the second clamping surface are both flat straight surfaces, two slide rails are arranged between the first fixed jaw block and the second fixed jaw block and the movable jaw block can be slidably mounted on the slide rails, a screw hole with an internal thread is arranged on the nut seat, the nut seat is sleeved with the screw through the above-mentioned screw hole and can move horizontally on the base by rotation of the screw.

[0004] The above-mentioned prior art can drive the movable clamp to move by rotating the screw during use, and then cooperate with the first fixed clamp or the second fixed clamp to clamp and fix the workpiece. However, during the clamping process, the screw is easily rotated due to vibration during the workpiece processing, thereby affecting the clamping effect and clamping accuracy of the workpiece. Utility Model Content

[0005] The utility model provides a high-precision quick-action flat-nose pliers, which solves the problem that the flat-nose pliers in the related art are prone to positional displacement of the movable pliers due to vibration of the workpiece in the clamping state, thereby affecting the clamping accuracy.

[0006] The technical solution of the utility model is as follows: A high-precision quick-action flat-nose pliers, comprising a base, a fixing member, a first fixing pliers, a second fixing pliers, a supporting seat, a supporting port, a threaded rod and a position adjustment mechanism;

[0007] The fixing member is fixedly arranged on the base;

[0008] The first fixing clamp is fixedly arranged on the fixing member;

[0009] The second fixing clamp is slidably disposed on the fixing member;

[0010] The support seat is fixedly arranged on the fixing member;

[0011] The support openings are provided in two, and the two support openings are opened on the support seat;

[0012] The threaded rod is fixedly arranged on the second fixing clamp corresponding to the support opening, and the threaded rod passes through the support opening;

[0013] The position adjustment mechanism is arranged on the fixing member and is used for controlling the second fixing clamp to adjust its position.

[0014] Preferably, the position adjustment mechanism comprises:

[0015] A first cavity, the first cavity being opened on the support seat corresponding to the support opening;

[0016] a threaded tube, the threaded tube being rotatably disposed in the first cavity;

[0017] Wherein, the threaded rod penetrates the threaded tube by threaded fitting;

[0018] The same-direction rotation mechanism is arranged in the support seat and is used to control the threaded tube to rotate in the same direction.

[0019] Furthermore, the same-direction rotating mechanism comprises:

[0020] a second cavity, the second cavity being opened between the first cavities, and the second cavity being communicated with the first cavity;

[0021] An annular rack, the annular rack being fixedly arranged on the outer wall of the threaded tube;

[0022] A first gear, the first gear is rotatably disposed in the second cavity, and the first gear is meshed with the annular rack;

[0023] A driving port, the driving port being opened on a side wall of the second cavity;

[0024] A driving column, the driving column is fixedly arranged on the first gear corresponding to the driving port, and the driving column passes through the driving port;

[0025] A hand wheel, the hand wheel is fixedly arranged on the side wall of the driving column;

[0026] A limiting mechanism is arranged in the second cavity and is used to limit the angle of the first gear.

[0027] Furthermore, the limiting mechanism includes:

[0028] A positioning groove, wherein the positioning groove is formed on the first gear;

[0029] A positioning post, the positioning post being fixedly disposed on the side wall of the second cavity corresponding to the positioning groove;

[0030] Wherein, the positioning column extends into the positioning groove;

[0031] A first limiting groove, wherein the first limiting groove is provided in plurality, and the plurality of first limiting grooves are arranged on the side wall of the positioning column;

[0032] A second limiting groove, wherein two second limiting grooves are provided, and the two second limiting grooves are arranged on the side wall of the positioning groove;

[0033] a second gear, the second gear being rotatably disposed in the second limiting groove;

[0034] A limit block, which is fixedly arranged on the side wall of the second gear and matches the shape of the second limit groove;

[0035] A driving mechanism is disposed in the first gear and is used to control the second gear to rotate.

[0036] Furthermore, the driving mechanism comprises:

[0037] A first driving groove, wherein the first driving groove is disposed at the bottom of the positioning groove;

[0038] a second driving groove, the second driving groove being disposed on the driving column;

[0039] A driving opening, the driving opening being opened between the first driving groove and the second driving groove;

[0040] A driving block, wherein the driving block is slidably disposed in the first driving groove;

[0041] A driving through groove, the driving through groove corresponding to the second limiting groove is arranged on the driving block;

[0042] A first rack, wherein the first gear is fixedly disposed at the bottom of the driving through slot, and the first gear is meshed with the second gear;

[0043] a driving protrusion, the driving protrusion being slidably disposed in the second driving groove;

[0044] A driving rod is fixedly disposed between the driving protrusion and the driving block.

[0045] On the basis of the above scheme, a support spring is further included. The support spring is sleeved on the driving rod, and two ends of the support spring are respectively connected to the bottom of the second driving groove and between the driving protrusion.

[0046] The working principle and beneficial effects of the utility model are:

[0047] 1. In the present utility model, through the setting of the position adjustment mechanism, the first gear can be driven to rotate by rotating the hand wheel, and the meshing threaded tube of the first gear and the annular rack is rotated at the same time, so that the threaded rod and the second fixing clamp are driven to adjust the position through the threaded cooperation between the threaded tube and the threaded rod, and then the workpiece is clamped and fixed by the second fixing clamp and the first fixing clamp;

[0048] 2. In the present invention, by setting the limiting mechanism, in the clamping state, the limiting block can be driven to extend into the first limiting groove by the rotation of the second gear, so that the first gear is limited by the cooperation between the limiting block and the side wall of the first limiting groove, thereby avoiding the angle deviation of the first gear caused by vibration, and further avoiding the position deviation of the second fixing clamp;

[0049] 3. In the utility model, through the setting of the driving mechanism, the operator presses the driving protrusion, so that the driving block is driven by the driving rod to adjust the position, and then the second gear is driven to rotate through the meshing of the first rack and the second gear, so as to adjust the position of the limit block, so as to unlock the first gear. At the same time, after releasing the driving protrusion, the driving protrusion and the limit block can be controlled to reset under the action of the supporting spring, so as to limit the angle of the first gear;

[0050] 4. In the utility model, through the arrangement of the base, the fixing part, the first fixing clamp, the second fixing clamp, the supporting seat, the supporting port, the threaded rod and the position adjustment mechanism, it is convenient to adjust the position of the second fixing clamp by rotating the threaded tube, and at the same time, the angle of the first gear can be limited by the cooperation between the limit block and the first limit groove, thereby avoiding the angle offset between the first gear and the threaded tube, and then avoiding the position offset of the second fixing clamp by the threaded cooperation between the threaded tube and the threaded rod, thereby solving the problem in the related art that the flat-nose pliers in the clamping state are easily offset due to the vibration of the workpiece, thereby affecting the clamping accuracy. BRIEF DESCRIPTION OF THE DRAWINGS

[0051] The utility model is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0052] Figure 1 It is a schematic diagram of the structure of the utility model;

[0053] Figure 2 This is a structural schematic diagram of the support seat of the utility model;

[0054] Figure 3 This is a schematic diagram of the cross-sectional structure of the support seat of the utility model;

[0055] Figure 4 This is a schematic diagram of the structure of the limiting mechanism of the utility model;

[0056] Figure 5 This is a schematic cross-sectional view of the drive block of the utility model.

[0057] In the figure: 1, base; 2, fixing member; 3, first fixing clamp; 4, second fixing clamp; 5, support seat; 6, threaded rod; 7, threaded pipe; 8, annular rack; 9, first gear; 10, driving column; 11, hand wheel; 12, positioning column; 13, first limiting groove; 14, second limiting groove; 15, second gear; 16, limiting block; 17, first driving groove; 18, second driving groove; 19, driving block; 20, first rack; 21, driving protrusion; 22, supporting spring. DETAILED DESCRIPTION

[0058] The following will be combined with the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0059] like Figure 1~Figure 5 As shown, this embodiment proposes a high-precision quick-action flat-nose pliers, including a base 1, a fixing member 2, a first fixing pliers 3, a second fixing pliers 4, a support seat 5, a support opening, a threaded rod 6 and a position adjustment mechanism. The fixing member 2 is fixedly arranged on the base 1, the first fixing pliers 3 is fixedly arranged on the fixing member 2, the second fixing pliers 4 is slidably arranged on the fixing member 2, the support seat 5 is fixedly arranged on the fixing member 2, two support openings are arranged, and the two support openings are opened on the support seat 5. The threaded rod 6 is fixedly arranged on the second fixing pliers 4 corresponding to the support openings, and the threaded rod 6 passes through the support openings. The position adjustment mechanism is arranged on the fixing member 2 for controlling the second fixing pliers 4 to adjust the position.

[0060] Among them, the position adjustment mechanism includes a first cavity, a threaded tube 7 and a same-direction rotation mechanism. The first cavity is opened on the support seat 5 corresponding to the support port, and the threaded tube 7 is rotatably arranged in the first cavity. The threaded rod 6 penetrates the threaded tube 7 through threaded cooperation. The same-direction rotation mechanism is arranged in the support seat 5, which is used to control the threaded tube 7 to rotate in the same direction. The same-direction rotation mechanism includes a second cavity, an annular rack 8, a first gear 9, a driving port, a driving column 10, a hand wheel 11 and a limiting mechanism. The second cavity is opened between the first cavity, and the second cavity is connected to the first cavity. The annular rack 8 is fixedly arranged on the outer wall of the threaded tube 7, and the first gear 9 is rotatably arranged in the second cavity. The first gear 9 is meshed with the annular rack 8. The driving port is opened on the side wall of the second cavity, and the driving column 10 is fixedly arranged on the first gear 9 corresponding to the driving port. The driving column 10 penetrates the driving port, and the hand wheel 11 is fixedly arranged on the side wall of the driving column 10. The limiting mechanism is arranged in the second cavity, which is used to limit the angle of the first gear 9.

[0061] Specifically, after placing the workpiece between the first fixing clamp 3 and the second fixing clamp 4, the operator turns the handwheel 11, thereby driving the first gear 9 to rotate through the driving column 10, and at the same time rotating the threaded tube 7 through the meshing threaded tube 7 of the first gear 9 and the annular rack 8, thereby driving the threaded rod 6 and the second fixing clamp 4 to adjust their positions through the threaded cooperation between the threaded tube 7 and the threaded rod 6, and then clamping and fixing the workpiece through the second fixing clamp 4 and the first fixing clamp 3.

[0062] Among them, the limiting mechanism includes a positioning groove, a positioning column 12, a first limiting groove 13, a second limiting groove 14, a second gear 15, a limiting block 16 and a driving mechanism, the positioning groove is opened on the first gear 9, the positioning column 12 is fixedly arranged on the side wall of the second cavity corresponding to the positioning groove, wherein the positioning column 12 extends into the positioning groove, the first limiting groove 13 is set to be multiple, and multiple first limiting grooves 13 are opened on the side wall of the positioning column 12, the second limiting groove 14 is set to be two, and two second limiting grooves 14 are opened on the side wall of the positioning groove, the second gear 15 is rotatably set in the second limiting groove 14, the limiting block 16 is fixedly arranged on the side wall of the second gear 15, and the limiting block 16 is adapted to the shape of the second limiting groove 14, and the driving mechanism is arranged in the first gear 9 for controlling the second gear 15 to rotate.

[0063] Specifically, after the workpiece is clamped, the operator controls the second gear 15 to rotate through the driving mechanism, so that the rotation of the second gear 15 drives the limit block 16 to extend into the first limit groove 13, so that the angle of the first gear 9 and the threaded tube 7 is limited by the cooperation of the limit block 16 and the first limit groove 13, thereby preventing the second fixed clamp 4 from being offset;

[0064] Among them, the driving mechanism includes a first driving groove 17, a second driving groove 18, a driving port, a driving block 19, a driving through groove, a first rack 20, a driving protrusion 21 and a driving rod. The first driving groove 17 is opened at the bottom of the positioning groove, the second driving groove 18 is opened on the driving column 10, the driving port is opened between the first driving groove 17 and the second driving groove 18, the driving block 19 is slidably arranged in the first driving groove 17, the driving through groove and the second limiting groove 14 are opened on the driving block 19 correspondingly, the first gear 9 is fixedly arranged at the bottom of the driving through groove, the first gear 9 is meshed with the second gear 15, the driving protrusion 21 is slidably arranged in the second driving groove 18, the driving rod is fixedly arranged between the driving protrusion 21 and the driving block 19, and also includes a support spring 22, the support spring 22 is sleeved on the driving rod, and the two ends of the support spring 22 are respectively between the bottom of the second driving groove 18 and the driving protrusion 21.

[0065] Specifically, the operator presses the driving protrusion 21, so that the driving block 19 can be driven to adjust the position through the driving rod, and then the second gear 15 is driven to rotate through the engagement of the first rack 20 and the second gear 15, and then the position of the limit block 16 is adjusted, so as to facilitate unlocking the first gear 9. After completing the clamping of the workpiece, the operator releases the driving protrusion 21, so that the driving protrusion 21 and the limit block 16 can be controlled to reset under the action of the support spring 22, so as to facilitate limiting the angle of the first gear 9.

[0066] In this embodiment, when in use, after placing the workpiece between the first fixing clamp 3 and the second fixing clamp 4, the operator presses the driving protrusion 21, so that the driving block 19 can be driven by the driving rod to adjust the position, and then the second gear 15 is driven to rotate through the meshing of the first rack 20 and the second gear 15, so that the rotation of the second gear 15 drives the limit block 16 to disengage from the first limit groove 13, thereby unlocking the first gear 9, and then the operator rotates the handwheel 11, thereby driving the first gear 9 to rotate through the driving column 10, and at the same time, the meshing threaded tube 7 of the first gear 9 and the annular rack 8 is rotated. The second fixing clamp 4 is moved, thereby the threaded cooperation between the threaded tube 7 and the threaded rod 6 drives the threaded rod 6 and the second fixing clamp 4 to adjust the position, and then the workpiece is clamped and fixed by the second fixing clamp 4 and the first fixing clamp 3. After completing the clamping of the workpiece, the operator releases the driving protrusion 21, so that the driving protrusion 21 can be controlled to reset under the action of the supporting spring 22, so that the limiting block 16 enters the first limiting groove 13 as the second gear 15 rotates, so that the angle of the first gear 9 and the threaded tube 7 is limited by the cooperation between the limiting block 16 and the first limiting groove 13, thereby avoiding the position deviation of the second fixing clamp 4.

[0067] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A high-precision quick-action flat-nose pliers, characterized in that: include: Base (1); A fixing member (2), the fixing member (2) being fixedly arranged on the base (1); A first fixing clamp (3), the first fixing clamp (3) being fixedly arranged on the fixing member (2); A second fixing clamp (4), the second fixing clamp (4) being slidably arranged on the fixing member (2); A support seat (5), the support seat (5) being fixedly arranged on the fixing member (2); A support opening, wherein two support openings are provided, and the two support openings are opened on the support seat (5); a threaded rod (6), the threaded rod (6) being fixedly arranged on the second fixing clamp (4) corresponding to the supporting opening, the threaded rod (6) passing through the supporting opening; A position adjustment mechanism, the position adjustment mechanism is arranged on the fixing member (2) and is used to control the second fixing clamp (4) to adjust its position.

2. A high-precision quick-action flat-nose pliers according to claim 1, characterized in that: The position adjustment mechanism comprises: a first cavity, the first cavity being opened on the support seat (5) corresponding to the support opening; A threaded tube (7), the threaded tube (7) being rotatably disposed in the first cavity; Wherein, the threaded rod (6) penetrates the threaded tube (7) by means of threaded fitting; A same-direction rotation mechanism, the same-direction rotation mechanism is arranged in the support seat (5) and is used to control the threaded tube (7) to rotate in the same direction.

3. A high-precision quick-action flat-nose pliers according to claim 2, characterized in that: The same-direction rotating mechanism comprises: a second cavity, the second cavity being opened between the first cavities, and the second cavity being communicated with the first cavity; an annular rack (8), the annular rack (8) being fixedly arranged on the outer wall of the threaded tube (7); a first gear (9), the first gear (9) being rotatably disposed in the second cavity, the first gear (9) being meshed with the annular rack (8); A driving port, the driving port being opened on a side wall of the second cavity; a driving column (10), the driving column (10) being fixedly arranged on the first gear (9) corresponding to the driving opening, the driving column (10) passing through the driving opening; A hand wheel (11), the hand wheel (11) being fixedly arranged on a side wall of the driving column (10); A limiting mechanism, the limiting mechanism is arranged in the second cavity and is used to limit the angle of the first gear (9).

4. A high-precision quick-action flat-nose pliers according to claim 3, characterized in that: The limiting mechanism comprises: a positioning groove, the positioning groove being formed on the first gear (9); A positioning column (12), the positioning column (12) being fixedly arranged on the side wall of the second cavity corresponding to the positioning groove; Wherein, the positioning column (12) extends into the positioning groove; A first limiting groove (13), wherein the first limiting groove (13) is provided in plurality, and the plurality of first limiting grooves (13) are provided on the side wall of the positioning column (12); A second limiting groove (14), wherein two second limiting grooves (14) are provided, and the two second limiting grooves (14) are arranged on the side wall of the positioning groove; a second gear (15), the second gear (15) being rotatably disposed in the second limiting groove (14); a limit block (16), the limit block (16) being fixedly arranged on a side wall of the second gear (15), the limit block (16) being adapted in shape to the second limit groove (14); A driving mechanism, the driving mechanism is arranged in the first gear (9) and is used to control the second gear (15) to rotate.

5. A high-precision quick-action flat-nose pliers according to claim 4, characterized in that: The driving mechanism comprises: A first driving groove (17), the first driving groove (17) being arranged at the groove bottom of the positioning groove; A second driving groove (18), wherein the second driving groove (18) is formed on the driving column (10); A drive opening, the drive opening being opened between the first drive groove (17) and the second drive groove (18); a driving block (19), the driving block (19) being slidably disposed in the first driving groove (17); A driving through groove, the driving through groove corresponding to the second limiting groove (14) is opened on the driving block (19); a first rack (20), the first gear (9) being fixedly arranged at the bottom of the driving through slot, the first gear (9) being meshed with the second gear (15); a driving protrusion (21), the driving protrusion (21) being slidably disposed in the second driving groove (18); A driving rod, the driving rod being fixedly arranged between the driving protrusion (21) and the driving block (19).

6. A high-precision quick-action flat-nose pliers according to claim 5, characterized in that: It also includes a support spring (22), the support spring (22) being sleeved on the drive rod, and the two ends of the support spring (22) being respectively located between the bottom of the second drive groove (18) and the drive protrusion (21).

Images