CN213828007U

CN213828007U - Clamping device for machining

Info

Publication number: CN213828007U
Application number: CN202022487478.5U
Authority: CN
Inventors: 王瑞娟
Original assignee: Tianjin Linfeng Precision Machinery Co ltd
Current assignee: Tianjin Linfeng Precision Machinery Co ltd
Priority date: 2020-11-02
Filing date: 2020-11-02
Publication date: 2021-07-30
Anticipated expiration: 2030-11-02

Abstract

The utility model discloses a clamping device for machining, including mounting plate, first installation piece, slide bar, centre gripping lead screw, centre gripping backup plate, centre gripping subassembly and the handle of gripping, be equipped with the mounting panel on the centre gripping backup plate, first installation piece is improved level and is equipped with the slip and leads to the groove, be equipped with the limiting plate on the slide bar, first installation piece top is equipped with vertical positioning pole, be equipped with special-shaped spout on the slide bar, special-shaped spout includes horizontal segment and ring segment, the horizontal segment is located the one end that the slide bar is close to the centre gripping backup plate, and the ring segment is located the one end that the slide bar kept away from the centre gripping backup plate, be equipped with the screw thread through-hole on the slide bar, centre gripping lead screw one end is equipped with the clamp plate, the centre gripping lead screw other end is equipped with the lead screw and adjusts the head. The utility model relates to a mechanical clamping device field, concretely relates to can carry out two point centre gripping from top to bottom to high work piece, and to the upper and lower left and right sides quadriversal of work piece exert clamping-force, clamping device for machining that the centre gripping effect is better.

Description

Clamping device for machining

Technical Field

The utility model relates to a mechanical clamping device field, concretely relates to clamping device for machining.

Background

Machining refers to a process of changing the overall dimension or performance of a workpiece through a mechanical device, and can be divided into cutting machining and pressure machining according to differences in machining modes, a clamp is required to be used for tightly fixing a part in the machining, in the prior art, the clamp on a workbench can generally stably clamp the workpiece with a conventional shape, the height of the workpiece is similar to the length and width of the workpiece, however, for the workpiece with a high height, the clamping point is single, the clamping is unstable, and the workpiece is easy to shift in the machining process.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a can carry out two point centre gripping from top to bottom to the higher work piece of height, and to the upper and lower left and right sides quadriversal of work piece exert clamping-force, clamping device for machining that the centre gripping effect is better.

The utility model adopts the following technical scheme: the utility model relates to a clamping device for machining, including mounting plate, first installation piece, slide bar, centre gripping lead screw, centre gripping backup plate, centre gripping subassembly and gripping handle, first installation piece and centre gripping backup plate are located on mounting plate and are located the mounting plate both ends, be equipped with the mounting panel on the centre gripping backup plate, the centre gripping subassembly is located on the mounting panel, level is equipped with the slip logical groove on the first installation piece, the slide bar slides and locates in the slip logical groove, be equipped with the limiting plate on the slide bar, the limiting plate can contact the setting with first installation piece, gripping handle locates on the limiting plate, first installation piece top is equipped with vertical locating lever, be equipped with the dysmorphism spout on the slide bar, vertical locating lever bottom runs through first installation piece top and locates in the dysmorphism spout, vertical locating lever and dysmorphism spout are relative slip structure setting, the special-shaped sliding chute comprises a horizontal section and an annular section, the horizontal section is positioned at one end, close to the clamping backup plate, of the sliding rod, the annular section is positioned at one end, far away from the clamping backup plate, of the sliding rod, a threaded through hole is formed in the sliding rod, the clamping screw rod is rotatably arranged in the threaded through hole, a pressing plate is arranged at one end of the clamping screw rod, and a screw rod adjusting head is arranged at the other end of the clamping screw rod; during the use, promote the slide bar left, the slide bar slides left along the slip logical groove in first installation piece, so the vertical positioning rod that the bottom is arranged in the horizontal segment of dysmorphism spout slides right along the horizontal segment relatively, when the rightmost end of the horizontal segment of dysmorphism spout reachs vertical positioning rod department, the user grips the handle through rotating, make vertical positioning rod be arranged in the ring segment of dysmorphism spout, when the clamp plate will treat that the centre gripping work piece presss from both sides tightly this moment, then need not to readjust the position of current centre gripping lead screw, when the clamp plate still has certain horizontal distance with treating the centre gripping work piece this moment, rotate the centre gripping lead screw through lead screw adjusting head group, make centre gripping lead screw horizontal leftward movement, it continues to be close to until will treat that the centre gripping work piece presss from both sides tightly fixedly to drive the clamp plate to treat that the centre gripping work piece is tight.

Further, the clamping assembly comprises a second mounting block, a fastening screw, a first clamping plate, a second clamping plate, an interval stop block and a compression spring, the second mounting block is arranged on the mounting plate and is of a hollow structure with an opening at one end, a first rotating shaft is rotatably arranged on the second mounting block, the first clamping plate is arranged on the first rotating shaft, a second rotating shaft is rotatably arranged on the second mounting block, the second clamping plate is arranged on the second rotating shaft, a threaded mounting hole is formed in the second mounting block, a threaded hole is formed in the second clamping plate, the fastening screw can rotatably penetrate through the threaded mounting hole and the threaded hole in sequence and is arranged on the second clamping plate, a cushion block is arranged on the first clamping plate, the fastening screw can be in contact with the cushion block, the interval stop block is arranged on the second mounting block, the interval stop block is arranged between the first clamping plate and the second clamping plate and is arranged on one end of the second rotating shaft, and the pressure plate is far away from the second rotating shaft The first clamping plate and the spacing stop block can be arranged in a contact manner, the second clamping plate and the spacing stop block can be arranged in a contact manner, and the compression spring is arranged between the first clamping plate and the second clamping plate and is positioned on one side of the second rotating shaft close to the pressure plate; when the workpiece is high and auxiliary clamping action needs to be exerted on the middle or upper part of the workpiece, a proper clamping point is selected on the workpiece to be clamped, the first clamping plate and the second clamping plate are placed on two sides of the clamping point, then the fastening screw is rotated to penetrate through the threaded hole and abut against the cushion block on the first clamping plate, and the clamping points are clamped tightly by the clamping ends of the first clamping plate and the second clamping plate according to a lever principle, so that the workpiece is clamped in an auxiliary mode.

Furthermore, a buffer backing plate is arranged on the pressing plate.

Further, the buffer backing plate is a paperboard buffer backing plate.

Furthermore, a balancing weight is arranged on the mounting bottom plate.

Adopt above-mentioned structure the utility model discloses the beneficial effect who gains as follows: when the clamping device for machining is used, the sliding rod is pushed leftwards, the sliding rod slides leftwards along the sliding through groove in the first installation block, so that a vertical positioning rod with the bottom positioned in a horizontal section of the special-shaped sliding groove slides rightwards relatively along the horizontal section, when the rightmost end of the horizontal section of the special-shaped sliding groove reaches the vertical positioning rod, a user rotates the holding handle to enable the vertical positioning rod to be positioned in an annular section of the special-shaped sliding groove, when a workpiece to be clamped is clamped by the pressing plate at the moment, the position of the current clamping screw rod does not need to be adjusted, when the pressing plate and the workpiece to be clamped have a certain horizontal distance, the clamping screw rod is rotated by the screw rod adjusting head group, so that the clamping screw rod moves leftwards horizontally, and the pressing plate is driven to continuously approach to the workpiece to be clamped until the workpiece to be clamped is clamped and fixed; when the workpiece is high and auxiliary clamping action needs to be exerted on the middle or upper part of the workpiece, a proper clamping point is selected on the workpiece to be clamped, the first clamping plate and the second clamping plate are placed on two sides of the clamping point, then the fastening screw is rotated to penetrate through the threaded hole and abut against the cushion block on the first clamping plate, and the clamping points are clamped tightly by the clamping ends of the first clamping plate and the second clamping plate according to a lever principle, so that the workpiece is clamped in an auxiliary mode. The utility model discloses can carry out two point centre gripping from top to bottom to high work piece, and to the upper and lower left and right sides quadriversal of work piece exert clamping-force, the centre gripping effect is better, has better market perspective.

Drawings

Fig. 1 is a schematic view of the overall structure of a clamping device for machining according to the present invention;

fig. 2 is a schematic structural view of a threaded through hole of a clamping device for machining according to the present invention;

fig. 3 is a top view of a clamping assembly of the clamping device for machining according to the present invention;

fig. 4 is a partially enlarged view of a portion a of fig. 1 of a clamping device for machining according to the present invention;

fig. 5 is a schematic structural view of a threaded mounting hole of the clamping device for machining according to the present invention;

fig. 6 is the utility model discloses a clamping device's for machining screw hole's schematic structure view.

The clamping device comprises a base plate 1, an installation base plate 2, a first installation block 3, a sliding rod 4, a clamping lead screw 5, a clamping backup plate 6, a clamping assembly 7, a holding handle 8, an installation plate 9, a sliding through groove 10, a limiting plate 11, a vertical positioning rod 12, a special-shaped sliding groove 13, a horizontal section 14, an annular section 15, a threaded through hole 16, a pressing plate 17, a lead screw adjusting head 18, a second installation block 19, a fastening screw 20, a first clamping plate 21, a second clamping plate 22, an interval stop block 23, a compression spring 24, a first rotating shaft 25, a second rotating shaft 26, a threaded installation hole 27, a threaded hole 28, a cushion block 29, a buffer cushion plate 30 and a balancing weight.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments; based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.

As shown in FIGS. 1-6, the clamping device for machining of the present invention comprises a mounting plate 1, a first mounting block 2, a sliding rod 3, a clamping screw 4, a clamping backup plate 5, a clamping assembly 6 and a holding handle 7, wherein the first mounting block 2 and the clamping backup plate 5 are disposed on the mounting plate 1 and located at two ends of the mounting plate 1, a mounting plate 8 is disposed on the clamping backup plate 5, the clamping assembly 6 is disposed on the mounting plate 8, a sliding through groove 9 is horizontally disposed on the first mounting block 2, the sliding rod 3 is slidably disposed in the sliding through groove 9, a limiting plate 10 is disposed on the sliding rod 3, the limiting plate 10 is contactable with the first mounting block 2, the holding handle 7 is disposed on the limiting plate 10, a vertical positioning rod 11 is disposed at the top of the first mounting block 2, a special-shaped chute 12 is disposed on the sliding rod 3, the bottom of the vertical positioning rod 11 penetrates through the top of the first mounting block 2 and is disposed in the chute 12, vertical locating lever 11 is the relative sliding structure setting with dysmorphism spout 12, dysmorphism spout 12 includes horizontal segment 13 and ring segment 14, horizontal segment 13 is located the one end that slide bar 3 is close to centre gripping backup plate 5, ring segment 14 is located the one end that slide bar 3 kept away from centre gripping backup plate 5, be equipped with screw thread through-hole 15 on the slide bar 3, centre gripping lead screw 4 is rotatable to be located in screw thread through-hole 15, centre gripping lead screw 4 one end is equipped with clamp plate 16, the centre gripping lead screw 4 other end is equipped with lead screw adjusting head 17.

The clamping assembly 6 comprises a second mounting block 18, a fastening screw 19, a first clamping plate 20, a second clamping plate 21, an interval stop 22 and a compression spring 23, the second mounting block 18 is arranged on the mounting plate 8, the second mounting block 18 is in a hollow structure with an opening at one end, a first rotating shaft 24 is rotatably arranged on the second mounting block 18, the first clamping plate 20 is arranged on the first rotating shaft 24, a second rotating shaft 25 is rotatably arranged on the second mounting block 18, the second clamping plate 21 is arranged on the second rotating shaft 25, a threaded mounting hole 26 is arranged on the second mounting block 18, a threaded hole 27 is arranged on the second clamping plate 21, the fastening screw 19 rotatably penetrates through the threaded mounting hole 26 and the threaded hole 27 in sequence and is arranged on the second clamping plate 21, a cushion block 28 is arranged on the first clamping plate 20, the fastening screw 19 and the cushion block 28 can be in a contact arrangement, be equipped with interval dog 22 on the second installation piece 18, interval dog 22 is located between first grip block 20 and the second grip block 21 and is located the one side that clamp plate 16 was kept away from to second rotation axis 25, first grip block 20 can contact the setting with interval dog 22, second grip block 21 can contact the setting with interval dog 22, compression spring 23 locates between first grip block 20 and the second grip block 21 and is located one side that second rotation axis 25 is close to clamp plate 16, be equipped with cushion plate 29 on the clamp plate 16, cushion plate 29 is card paper cushion plate, be equipped with balancing weight 30 on the mounting plate 1.

When the clamping device is used specifically, in an initial state, a workpiece to be clamped is placed on the mounting base plate 1 and is arranged between the clamping backup plate 5 and the first mounting block 2, one surface of the workpiece to be clamped is attached to the clamping backup plate 5, the bottom of the vertical positioning rod 11 is located at the leftmost end of the horizontal section 13 of the special-shaped chute 12, the clamping screw 4 is located at the right end of the sliding rod 3, the pressing plate 16 is attached to the left side wall of the first mounting block 2, the fastening screw 19 is screwed on the second mounting block 18 but does not enter the threaded hole 27 in the second clamping plate 21, the compression spring 23 enables the clamping ends of the first clamping plate 20 and the second clamping plate 21 to be opened, and the non-clamping ends of the second clamping plate 21 and the second clamping plate 21 are attached to the partition plate; when the clamping device is used, firstly, the sliding rod 3 is pushed leftwards, the sliding rod 3 slides leftwards in the first mounting block 2 along the sliding through groove 9, then the vertical positioning rod 11 with the bottom positioned in the horizontal section 13 of the special-shaped sliding groove 12 slides rightwards relatively along the horizontal section 13, when the rightmost end of the horizontal section 13 of the special-shaped sliding groove 12 reaches the position of the vertical positioning rod 11, a user rotates the holding handle 7 to enable the vertical positioning rod 11 to be positioned in the annular section 14 of the special-shaped sliding groove 12, when a workpiece to be clamped is clamped by the pressing plate 16 at the moment, the position of the current clamping screw rod 4 does not need to be adjusted, when the pressing plate 16 and the workpiece to be clamped still have a certain horizontal distance, the clamping screw rod 4 is rotated by the screw rod adjusting head 17 group, so that the clamping screw rod 4 moves leftwards horizontally, and the pressing plate 16 is driven to continuously approach to the workpiece to be clamped until the workpiece to be clamped is clamped and fixed.

When the height of a workpiece is high and auxiliary clamping action needs to be exerted on the middle or upper part of the workpiece, a proper clamping point is selected on the workpiece to be clamped, the first clamping plate 20 and the second clamping plate 21 are placed on two sides of the clamping point, then the fastening screw 19 is rotated, the fastening screw 19 penetrates through the threaded hole 27 and abuts against the cushion block 28 on the first clamping plate 20, and the clamping points are clamped by the clamping ends of the first clamping plate 20 and the second clamping plate 21 according to the lever principle, so that the workpiece is clamped in an auxiliary mode.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

The basic principles and the main features of the invention and the advantages of the invention have been shown and described above, it will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, but that the invention may be embodied in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.

Claims

1. A clamping device for machining is characterized by comprising an installation bottom plate, a first installation block, a sliding rod, a clamping lead screw, a clamping backup plate, a clamping assembly and a holding handle, wherein the first installation block and the clamping backup plate are arranged on the installation bottom plate and positioned at two ends of the installation bottom plate, the clamping backup plate is provided with an installation plate, the clamping assembly is arranged on the installation plate, the first installation block is horizontally provided with a sliding through groove, the sliding rod is arranged in the sliding through groove in a sliding manner, the sliding rod is provided with a limiting plate, the limiting plate is arranged in a contact manner with the first installation block, the holding handle is arranged on the limiting plate, the top of the first installation block is provided with a vertical positioning rod, the sliding rod is provided with a special-shaped sliding groove, the bottom of the vertical positioning rod penetrates through the top of the first installation block and is arranged in the special-shaped sliding groove, the special-shaped sliding groove comprises a horizontal section and an annular section, the horizontal section is located at one end, close to the clamping backup plate, of the sliding rod, the annular section is located at one end, far away from the clamping backup plate, of the sliding rod, a threaded through hole is formed in the sliding rod, the clamping screw is rotatably arranged in the threaded through hole, a pressing plate is arranged at one end of the clamping screw, and a screw adjusting head is arranged at the other end of the clamping screw.

2. The clamping device for machining according to claim 1, wherein the clamping assembly includes a second mounting block, a fastening screw, a first clamping plate, a second clamping plate, a spacing block, and a compression spring, the second mounting block is disposed on the mounting plate, the second mounting block is configured as a hollow structure with an opening at one end, a first rotating shaft is rotatably disposed on the second mounting block, the first clamping plate is disposed on the first rotating shaft, a second rotating shaft is rotatably disposed on the second mounting block, the second clamping plate is disposed on the second rotating shaft, a threaded mounting hole is disposed on the second mounting block, a threaded hole is disposed on the second clamping plate, the fastening screw rotatably penetrates through the threaded mounting hole and the threaded hole in sequence and is disposed on the second clamping plate, a cushion block is disposed on the first clamping plate, and the fastening screw can contact with the cushion block, the second mounting block is provided with an interval stop dog, the interval stop dog is positioned between the first clamping plate and the second clamping plate and positioned on one side, away from the pressing plate, of the second rotating shaft, the first clamping plate and the interval stop dog can be in contact arrangement, the second clamping plate and the interval stop dog can be in contact arrangement, and the compression spring is arranged between the first clamping plate and the second clamping plate and positioned on one side, close to the pressing plate, of the second rotating shaft.

3. A clamping device for machining according to claim 2, wherein a cushion pad is provided on the pressing plate.

4. A clamping device for machining according to claim 3, wherein the cushion plate is a cardboard cushion plate.

5. The clamping device for machining according to claim 1, wherein a weight block is provided on the mounting base plate.