CN220029475U - Quick clamping structure of part - Google Patents

Abstract

The utility model discloses a rapid clamping structure for parts. The utility model has reasonable structural design, the driving end of the air cylinder stretches up and down to drive the locking block to move up and down, and when the locking block moves up and down, the inclined lug of the locking block can slide up and down with the inclined clamping groove of the clamping block, so that the clamping block can reciprocate along the guide post to achieve the compression and release between the reference positioning block and the clamping block, the part can be clamped when the reference positioning block and the clamping block are compressed, and the part can be taken out when the reference positioning block and the clamping block are released. According to the clamping structure, the clamping and releasing of two parts can be realized simultaneously through the operation of one driving cylinder, so that the clamping structure can clamp and position at least two parts at one time, and the production efficiency is greatly improved compared with the existing clamping structure which can only realize the clamping and positioning of a single part.

Description

Quick clamping structure of part

Technical Field

The utility model relates to the technical field of clamping of numerical control machine tools, in particular to a rapid clamping structure of a part.

Background

At present, when CNC processing is carried out to spare parts (such as irregular shaped parts), the clamping structure is required to be installed on the numerical control machine tool firstly, then after the clamping structure is installed, the clamping structure is utilized to clamp and position the spare parts, in the prior art (as shown in fig. 2), the clamping structure mainly comprises a workbench (12), a driving cylinder (13), a fixed block (14) and a movable block (15), and accordingly the movable block (15) is driven to be close to the fixed block (14) through the driving cylinder (13), and then the fixed block (14) and the movable block (15) are utilized to clamp the spare parts (16), so that follow-up CNC processing is convenient.

The above prior art has drawbacks: the clamping structure used at the present stage can only position a single part, that is, each time the numerical control milling machine finishes processing one part, the processed part is taken out after stopping, and the unprocessed part is placed in the clamping structure, so that the production efficiency of the clamping structure for clamping and positioning the single part is low.

Disclosure of Invention

The utility model aims to provide a rapid part clamping structure, which aims to solve the technical problem that the clamping structure is low in production efficiency and can only realize the clamping and positioning of a single part.

In order to achieve the above purpose, the technical scheme of the utility model provides a quick clamping structure for parts, which comprises a tool bottom plate, wherein at least one group of clamping mechanisms are arranged on the tool bottom plate, each clamping mechanism comprises two part clamping assemblies arranged above the tool bottom plate, a locking block arranged between the two part clamping assemblies and a cylinder arranged below the tool bottom plate, each part clamping assembly comprises a reference positioning block and a clamping block, the two clamping blocks are arranged in opposite directions, a guide pillar is arranged on one side of the reference positioning block, which faces the clamping block, and a guide hole matched with the guide pillar in a guiding manner is arranged on one side of the clamping block, which faces the reference positioning block, so that the clamping block can reciprocate on the guide pillar; the two clamping blocks are provided with inclined-plane clamping grooves on opposite sides, the inclined-plane clamping grooves incline from bottom to top gradually towards one side close to the reference positioning block, inclined-plane protruding blocks matched with the inclined-plane clamping grooves are respectively arranged on two sides of the locking block, the locking block is tightly contacted with the inclined-plane clamping grooves of the two clamping blocks through the inclined-plane protruding blocks, and the driving end of the air cylinder upwards penetrates through the tool bottom plate and is connected with the locking block, so that the up-and-down movement of the locking block can realize the compression and the release between the reference positioning block and the clamping block.

Further, a plurality of guide posts which are arranged in parallel and horizontally extend are arranged on one side, facing the clamping block, of the reference positioning block, a plurality of guide holes which are arranged in parallel and horizontally extend are arranged on one side, facing the reference positioning block, of the clamping block, and the guide posts are respectively matched with the guide holes in a guiding manner.

Further, a first clamping groove is further formed in one side, facing the clamping block, of the reference positioning block, a second clamping groove is further formed in one side, facing the reference positioning block, of the clamping block, and products can be clamped together when the first clamping groove and the second clamping groove are close together.

Further, at least two positioning grooves matched with the reference positioning blocks are further formed in the upper portion of the tool bottom plate, and the two reference positioning blocks are respectively attached to the bottoms of the two positioning grooves and fixed to the tool bottom plate.

Further, the top of latch segment is equipped with the recess, the tank bottom middle part of recess is equipped with the through-hole that runs through downwards, be equipped with first gasket in the recess, the below of latch segment is equipped with the second gasket, and the spacing screw passes first gasket, through-hole, second gasket downwards in proper order with the drive end of cylinder is connected.

Further, the limit screw comprises a first screw column, a second screw column and a screw head, wherein the outer diameter of the first screw column is larger than that of the second screw column and is arranged above the second screw column, the outer diameter of the screw head is larger than that of the first screw column and is arranged above the first screw column, and the first gasket and the second gasket are respectively arranged on the first screw column and the second screw column; the driving end of the cylinder is provided with a cylinder rod, and the middle part of the cylinder rod is provided with a cylinder rod groove matched with the second screw rod.

Further, two tooling support blocks are further arranged below the tooling bottom plate, the two tooling support blocks are respectively fixedly arranged on the left side and the right side of the tooling bottom plate, the air cylinder is arranged between the two tooling support blocks, and the height of the tooling support blocks is higher than that of the air cylinder.

Further, one side of the tool supporting block is provided with at least one pneumatic switch, and the pneumatic switch can control the air cylinder to realize pneumatic movement.

Further, two opposite sides of the tool supporting blocks are provided with tool fixing blocks, the bottoms of the tool fixing blocks are leveled with the bottoms of the tool supporting blocks, and one end, away from the tool supporting blocks, of each tool fixing block is provided with a U-shaped groove.

Further, two groups of clamping mechanisms are arranged on the tool bottom plate and are respectively arranged on the front side and the rear side of the tool bottom plate; the inclined clamping groove is a dovetail groove.

In summary, the technical scheme of the utility model has the following beneficial effects: the utility model has reasonable structural design, the driving end of the air cylinder stretches up and down to drive the locking block to move up and down, and when the locking block moves up and down, the inclined lug of the locking block can slide up and down with the inclined clamping groove of the clamping block, so that the clamping block can reciprocate along the guide post to achieve the compression and release between the reference positioning block and the clamping block, the part can be clamped when the reference positioning block and the clamping block are compressed, and the part can be taken out when the reference positioning block and the clamping block are released. According to the clamping structure, the clamping and releasing of two parts can be realized simultaneously through the operation of one driving cylinder, so that the clamping structure can clamp and position at least two parts at one time, and the production efficiency is greatly improved compared with the existing clamping structure which can only realize the clamping and positioning of a single part.

Drawings

FIG. 1 is a schematic diagram of the structure of the present utility model;

FIG. 2 is a schematic diagram of a prior art structure;

FIG. 3 is a schematic view of the tooling bottom plate structure of the present utility model;

FIG. 4 is a schematic illustration of the assembly of the part holding assembly with the locking block of the present utility model;

FIG. 5 is a schematic view of the structure of two adjacent clamping blocks of the present utility model;

FIG. 6 is a schematic view of a locking block structure according to the present utility model;

FIG. 7 is a schematic view of the assembly of the limit screw and the cylinder of the present utility model;

FIG. 8 is a schematic view of a stop screw according to the present utility model;

FIG. 9 is a schematic view of the structure of the present utility model with a reference block and a clamp block removed;

reference numerals illustrate: 1-a tool bottom plate and 101-a positioning groove; 2-part clamping assembly, 201-reference positioning block, 2011-first clamping groove, 202-clamping block, 2021-inclined clamping groove, 2022-second clamping groove, 2023-guide hole; 3-locking blocks, 301-oblique convex blocks, 302-grooves and 303-through holes; 4-cylinder, 401-cylinder rod; 5-limit screws, 501-first screw columns, 502-second screw columns and 503-screw heads; the device comprises a 6-tool supporting block, a 7-pneumatic switch, an 8-guide pillar, a 9-tool fixing block, a 901-U-shaped groove, a 10-first gasket and a 11-second gasket.

12-workbench, 13-driving cylinder, 14-fixed block, 15-movable block and 16-parts.

Detailed Description

The technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the drawings in the embodiments of the present utility model, but the scope of protection of the present utility model is not limited.

In the present utility model, for a clearer description, the following description is made: the observer views fig. 1 with the left side of the observer set to the left, the right side of the observer set to the right, the front of the observer set to the front, the rear of the observer set to the rear, the upper side of the observer set to the upper side, and the lower side of the observer set to the lower side, and it should be noted that the terms "front end", "rear end", "left side", "right side", "middle part", "upper side", "lower side", and the like in this text indicate orientations or positional relationships based on the orientations or positional relationships set forth in the drawings, and are merely for the sake of clarity of description of the present utility model, rather than to indicate or imply that the structures or components to be referred to must have specific orientations, be constructed in specific orientations, and therefore should not be construed as limiting the present utility model. Furthermore, the terms "first," "second," "third," "fourth" and the like are used for clarity or to simplify the description, and are not to be construed as indicating or implying a relative importance or quantity.

Referring to fig. 1 to 9, the present embodiment provides a quick clamping structure for parts, including a tooling bottom plate 1, at least one set of clamping mechanism is provided on the tooling bottom plate 1, the clamping mechanism includes two part clamping assemblies 2 disposed above the tooling bottom plate 1, a locking block 3 disposed between the two part clamping assemblies 2, and a cylinder 4 disposed below the tooling bottom plate 1, the part clamping assemblies 2 include a reference positioning block 201 and a clamping block 202, the two clamping blocks 202 are disposed opposite to each other, a guide post 8 is provided on a side of the reference positioning block 201 facing the clamping block 202, and a guide hole 2023 in guiding fit with the guide post 8 is provided on a side of the clamping block 202 facing the reference positioning block 201, so that the clamping block 202 can reciprocate on the guide post 8; the two clamping blocks 202 are provided with inclined-plane clamping grooves 2021 on opposite sides, the inclined-plane clamping grooves 2021 incline from bottom to top gradually towards one side close to the reference positioning block 201, two sides of the locking block 3 are respectively provided with inclined convex blocks 301 matched with the inclined-plane clamping grooves 2021, the locking block 3 is tightly contacted with the inclined-plane clamping grooves 2021 of the two clamping blocks 202 through the inclined convex blocks 301, and the driving end of the air cylinder 4 upwards penetrates through the tool bottom plate 1 and is connected with the locking block 3, so that the up-and-down movement of the locking block 3 can realize compression and release between the reference positioning block 201 and the clamping blocks 202. The function is as follows: according to the utility model, the driving end of the air cylinder stretches up and down to drive the locking block to move up and down, and when the locking block moves up and down, the inclined lug of the locking block can slide up and down with the inclined clamping groove of the clamping block, so that the clamping block can reciprocate along the guide pillar to achieve the compression and release between the reference positioning block and the clamping block, the part can be clamped when the reference positioning block is compressed with the clamping block, and the part can be taken out when the reference positioning block is released from the clamping block. According to the clamping structure, the clamping and releasing of two parts can be realized simultaneously through the operation of one driving cylinder, so that the clamping structure can clamp and position at least two parts at one time, and the production efficiency is greatly improved compared with the existing clamping structure which can only realize the clamping and positioning of a single part. Meanwhile, the clamping speed of the parts is very high due to the fact that the parts are driven by the air cylinder.

Specifically, a side of the reference positioning block 201 facing the clamping block 202 is provided with a plurality of guide posts 8 which are arranged in parallel and horizontally extend, a side of the clamping block 202 facing the reference positioning block 201 is provided with a plurality of guide holes 2023 which are arranged in parallel and horizontally extend, and the guide posts 8 are respectively in guide fit with the guide holes 2023. The function is as follows: through the arrangement of a plurality of guide posts and a plurality of guide holes, the reference positioning block and the clamping block can be aligned better, and accurate positioning of the reference positioning block and the clamping block is ensured.

Specifically, a first clamping groove 2011 is further formed on a side, facing the clamping block 202, of the reference positioning block 201, a second clamping groove 2022 is further formed on a side, facing the reference positioning block 201, of the clamping block 202, and the first clamping groove 2011 and the second clamping groove 2022 can clamp parts together when being close to each other. The function is as follows: the first clamping groove and the second clamping groove are arranged, so that the clamping and positioning of parts, particularly special-shaped parts, are facilitated.

Specifically, at least two positioning grooves 101 matched with the reference positioning blocks 201 are further formed above the tool bottom plate 1, and the two reference positioning blocks 201 are respectively attached to the bottoms of the two positioning grooves 101 and fixed to the tool bottom plate 1. The function is as follows: through the setting of constant head tank, accurate location is on the frock bottom plate to the datum positioning piece to realize the initial positioning of part clamping assembly.

Specifically, the top of the locking block 3 is provided with a groove 302, a through hole 303 penetrating downwards is formed in the middle of the groove bottom of the groove 302, a first gasket 10 is arranged in the groove 302, a second gasket 11 is arranged below the locking block 3, and a limit screw 5 penetrates through the first gasket 10, the through hole 303 and the second gasket 11 downwards in sequence and is connected with the driving end of the cylinder 4. The function is as follows: the first gasket 10 and the first gasket 10 can limit the up-down relative movement of the locking block and the limit screw 5, so that the movement of the locking block is more stable. The limit screw 5 is preferably a stopper screw.

Specifically, the limit screw 5 includes a first screw post 501, a second screw post 502, and a screw head 503, wherein the outer diameter of the first screw post 501 is larger than the outer diameter of the second screw post 502 and is disposed above the second screw post 502, the outer diameter of the screw head 503 is larger than the outer diameter of the first screw post 501 and is disposed above the first screw post 501, and the first gasket 10 and the second gasket 11 are respectively disposed on the first screw post 501 and the second screw post 502; the driving end of the cylinder 4 is provided with a cylindrical rod 401, and the middle part of the cylindrical rod 401 is provided with a cylindrical rod groove matched with the second screw post 502. The function is as follows: the first gasket and the second gasket are conveniently arranged and fixed through the first screw column 501, the second screw column 502 and the screw head 503. Preferably, the first gasket is limited up and down by the screw head and the groove bottom of the groove, and the second gasket can be sleeved and fixed on the annular mounting groove of the second screw column.

Specifically, two tooling support blocks 6 are further arranged below the tooling bottom plate 1, the two tooling support blocks 6 are respectively fixedly arranged on the left side and the right side of the tooling bottom plate 1, the air cylinder 4 is arranged between the two tooling support blocks 6, and the height of the tooling support blocks 6 is higher than that of the air cylinder 4. The function is as follows: the design makes the frock supporting shoe can take into account the height of cylinder, avoids damaging the cylinder in the course of the work. In addition, the cylinder 4 can be fixed below the tool bottom plate 1 through screws, so that the perpendicularity of the cylinder and the tool bottom plate is guaranteed, and the convenience of disassembling the cylinder and the tool bottom plate is improved.

Specifically, one side of the tooling support block 6 is provided with at least one pneumatic switch 7, and the pneumatic switch 7 can control the air cylinder 4 to realize pneumatic movement. The function is as follows: the pneumatic switch is used for driving the cylinder to move.

Specifically, two frock supporting pieces 6 are equipped with frock fixed block 9 on one side that is opposite to each other, and the bottom of frock fixed block 9 is leveled with the bottom of frock supporting piece 6, and the one end that frock fixed block 9 kept away from frock supporting piece 6 is equipped with U type groove 901. The function is as follows: the fixture fixing block is used for fixing the clamping structure on the numerical control machine tool, and the U-shaped groove is convenient to install. The tooling fixing block is preferably a tooling sizing block square.

Specifically, two groups of clamping mechanisms are arranged on the tool bottom plate 1, and the two groups of clamping mechanisms are respectively arranged on the front side and the rear side of the tool bottom plate 1; the function is as follows: through setting up two sets of clamping mechanism to can have four part clamping assemblies and two cylinders, two latch segment, two pneumatic switch, satisfy the clamping that once can accomplish four parts, improve production efficiency greatly. The inclined surface groove 2021 is a dovetail groove. The function is as follows: the dovetail grooves are arranged, so that accurate positioning of the clamping blocks and the locking blocks is facilitated.

In specific implementation, the clamping structure is installed and fixed on a numerical control machine tool through the tool fixing block 9, four reference positioning blocks 201 are fixed on the tool bottom plate 1 through bolts before the air cylinder 4 is started, one side of the clamping block 202 is accurately positioned through a plurality of guide posts 8, at the moment, the freedom of the front-back movement of the clamping block 202 is limited, and the other side of the clamping block 202 is movably connected with the locking block 3 through an inclined surface clamping groove 2021; the locking block 3 is connected with the air cylinder 4 through a limit screw 5, wherein the air cylinder 4 is fixed below the tool bottom plate 1 through a bolt; the operator controls the opening of the air cylinder 4 through the handle of the pneumatic switch, and the locking block 3 moves up and down under the action of the air cylinder 4 so as to promote the clamping block 202 to adjust the tightness state.

The technical effect that this design obtained mainly is: according to the utility model, through the arrangement of the clamping assemblies of the four parts, the clamping of the four parts can be completed at one time, and the product competitiveness is greatly improved.

While the foregoing is directed to the preferred embodiments of the present utility model, it will be appreciated by those skilled in the art that changes and modifications may be made without departing from the principles of the utility model, such changes and modifications are also intended to be within the scope of the utility model.

Claims (10)

1. The utility model provides a part quick clamping structure, includes frock bottom plate (1), its characterized in that: the fixture comprises a fixture bottom plate (1), at least one group of clamping mechanisms are arranged on the fixture bottom plate (1), each clamping mechanism comprises two part clamping assemblies (2) arranged above the fixture bottom plate (1), a locking block (3) arranged between the two part clamping assemblies (2) and a cylinder (4) arranged below the fixture bottom plate (1), each part clamping assembly (2) comprises a reference positioning block (201) and a clamping block (202), the two clamping blocks (202) are oppositely arranged, a guide pillar (8) is arranged on one side of the reference positioning block (201) facing the clamping block (202), and a guide hole (2023) matched with the guide pillar (8) in a guiding manner is arranged on one side of the clamping block (202) facing the reference positioning block (201), so that the clamping block (202) can reciprocate on the guide pillar (8); two clamping blocks (202) are equipped with inclined plane draw-in groove (2021) in one side in opposite directions, inclined plane draw-in groove (2021) is upwards gradually from down to be close to one side of benchmark locating piece (201), the both sides of latch segment (3) are equipped with respectively with inclined plane lug (301) of inclined plane draw-in groove (2021) looks adaptation, latch segment (3) are through inclined plane lug (301) and two inclined plane draw-in groove (2021) of clamping block (202) form the intensive contact, the drive end of cylinder (4) upwards pass frock bottom plate (1) and with latch segment (3) are connected, so that the up-and-down motion of latch segment (3) can realize the compaction and the release between benchmark locating piece (201) and clamping block (202).

2. The quick clamping arrangement for a part as set forth in claim 1, wherein: the clamping device is characterized in that a plurality of guide posts (8) which are arranged in parallel and horizontally extend are arranged on one side of the reference positioning block (201) facing the clamping block (202), a plurality of guide holes (2023) which are arranged in parallel and horizontally extend are arranged on one side of the clamping block (202) facing the reference positioning block (201), and the guide posts (8) are respectively matched with the guide holes (2023) in a guiding mode.

3. The quick clamping arrangement for a part as set forth in claim 1, wherein: the device is characterized in that a first clamping groove (2011) is further formed in one side, facing the clamping block (202), of the reference positioning block (201), a second clamping groove (2022) is further formed in one side, facing the reference positioning block (201), of the clamping block (202), and parts can be clamped together when the first clamping groove (2011) and the second clamping groove (2022) are close together.

4. The quick clamping arrangement for a part as set forth in claim 1, wherein: and at least two positioning grooves (101) matched with the reference positioning blocks (201) are further formed in the upper portion of the tool bottom plate (1), and the two reference positioning blocks (201) are respectively attached to the bottoms of the two positioning grooves (101) and fixed to the tool bottom plate (1).

5. A quick clamping arrangement for a part according to any one of claims 1 to 4, wherein: the top of latch segment (3) is equipped with recess (302), the tank bottom middle part of recess (302) is equipped with through-hole (303) that runs through downwards, be equipped with first gasket (10) in recess (302), the below of latch segment (3) is equipped with second gasket (11), and spacing screw (5) pass first gasket (10), through-hole (303), second gasket (11) downwards in proper order with the drive end of cylinder (4) is connected.

6. The quick clamping arrangement for a part as set forth in claim 5, wherein: the limiting screw (5) comprises a first screw column (501), a second screw column (502) and a screw head (503), wherein the outer diameter of the first screw column (501) is larger than that of the second screw column (502) and is arranged above the second screw column, the outer diameter of the screw head (503) is larger than that of the first screw column (501) and is arranged above the first screw column, and the first gasket (10) and the second gasket (11) are respectively arranged on the first screw column (501) and the second screw column (502); the driving end of the cylinder (4) is provided with a cylindrical rod (401), and a cylindrical rod groove matched with the second screw column (502) is formed in the middle of the cylindrical rod (401).

7. A quick clamping arrangement for a part according to any one of claims 1 to 4, 6, characterized in that: the tool comprises a tool bottom plate (1), and is characterized in that two tool supporting blocks (6) are further arranged below the tool bottom plate (1), the two tool supporting blocks (6) are respectively fixedly arranged on the left side and the right side of the tool bottom plate (1), a cylinder (4) is arranged between the two tool supporting blocks (6), and the height of the tool supporting blocks (6) is higher than that of the cylinder (4).

8. The quick clamping arrangement for a component as defined in claim 7 wherein: one side of the tool supporting block (6) is provided with at least one pneumatic switch (7), and the pneumatic switch (7) can control the air cylinder (4) to realize pneumatic movement.

9. The quick clamping arrangement for a component as defined in claim 7 wherein: two opposite sides of the tool supporting block (6) are provided with tool fixing blocks (9), the bottoms of the tool fixing blocks (9) are leveled with the bottoms of the tool supporting blocks (6), and one end, away from the tool supporting blocks (6), of each tool fixing block (9) is provided with a U-shaped groove (901).

10. A quick clamping arrangement for a part according to any one of claims 1 to 4, 6, 8 to 9, characterized in that: two groups of clamping mechanisms are arranged on the tool bottom plate (1) and are respectively arranged on the front side and the rear side of the tool bottom plate (1); the inclined surface clamping groove (2021) is a dovetail groove.