CN219094845U

CN219094845U - Pressing fixture and combined fixture thereof

Info

Publication number: CN219094845U
Application number: CN202221997938.1U
Authority: CN
Inventors: 胡永旺; 黄小东; 石小京
Original assignee: Rida Intelligent Manufacture Technology Rugao Co Ltd
Current assignee: Rida Intelligent Manufacture Technology Rugao Co Ltd
Priority date: 2022-08-01
Filing date: 2022-08-01
Publication date: 2023-05-30
Anticipated expiration: 2032-08-01

Abstract

The utility model provides a pressing fixture and a combination fixture thereof, comprising a sub fixture, wherein at least one pressing station is arranged on the sub fixture, at least one group of opposite sides of the pressing station are symmetrically provided with pressing pieces, the pressing pieces are positioned with the sub fixture through a positioning component, and the pressing pieces are locked with the sub fixture through a locking component; the jig further comprises a mother jig, wherein the mother jig is provided with a fixing station, a processing window is formed in the fixing station, clamping assemblies are symmetrically arranged at two ends of the fixing station, and the child jig is placed in the fixing station and is pressed and fixed through the clamping assemblies. According to the utility model, the split type pressing structure is adopted to match with the locking position through multi-point positioning, so that the accumulated tolerance of the assembly and connection of the jig parts is reduced, and the positioning accuracy and the locking position stability are improved. The utility model has reliable positioning and clamping, and realizes the avoidance function by adopting a detail structure. According to the utility model, through step positioning, interference between horizontal positioning and longitudinal positioning does not occur, and the positioning accuracy and stability are improved.

Description

Pressing fixture and combined fixture thereof

Technical Field

The utility model belongs to the technical field of machinery, and relates to a split clamp, in particular to a pressing and holding fixture and a combined fixture thereof.

Background

The tool is a large-scale tool for woodworking, ironwork, bench workers, machinery, electric control and other handicraft articles, and is mainly used as a tool for assisting in controlling positions or actions (or both). The jig can be divided into three types, namely a process assembly jig, a project test jig and a circuit board test jig. As the manufacturing industry widely uses CNC machines (CNCs), jigs are assembled on CNC machines for automated processing use.

For example, chinese patent literature discloses a processing jig [ chinese patent No.: CN201820578503.0, the utility model relates to a processing tool, which comprises a frame, wherein a rectangular-like processing groove is arranged in the middle of the frame, two first positioning blocks are arranged on one side of the processing groove, a second positioning block is arranged opposite to the first positioning block, two third positioning blocks are symmetrically arranged on the other two sides of the processing groove, the first positioning block and the third positioning block are fixed on the frame, the outer sides of the first positioning block and the third positioning block are respectively provided with a first cylinder, the top end of a telescopic rod of the first cylinder is connected with a cross rod, the cross rod extends to the inner side of the processing groove, the first cylinder drives the cross rod to move up and down, the outer side of the second positioning block is provided with a second cylinder, the telescopic rod of the second cylinder is connected with the second positioning block, the second cylinder drives the second positioning block to move horizontally, and the first cylinder and the second cylinder are fixed on the frame. The processing jig disclosed by the utility model realizes automatic stable fixation of products, and improves the processing efficiency and the processing precision of the products.

According to the technical scheme, the material is fixed by adopting the dynamic press-holding and dynamic pushing clamp, the complexity of the press-holding structure is increased, the jig cost is increased, the clamping structure cannot be replaced easily, and certain limitation is achieved. In addition, positioning deviation is easy to generate, and accuracy is reduced.

Disclosure of Invention

The utility model aims at solving the problems in the prior art, and provides a pressing jig and a combined tool thereof, wherein the pressing jig adopts a relative pressing structure to improve positioning accuracy and locking stability through multi-point positioning matching locking.

The aim of the utility model can be achieved by the following technical scheme: the utility model provides a press and hold tool, includes sub-tool, set up at least one on the sub-tool and press and hold the station, press at least a set of opposite edge of holding the station and be the symmetry and set up and press the piece, press the piece through locating component with sub-tool forms the location, press the piece through locking component with sub-tool forms the locking.

In the pressing fixture, the pressing piece is provided with a pressing block which is in a cube shape, one side of the pressing block is integrally provided with a pressing claw in a protruding mode, a plurality of teeth are arranged on the edge of the pressing claw in an arrangement mode, the bottoms of the teeth are downwards provided with pressing portions in a protruding mode, and a pressing gap is reserved between the pressing portions and the pressing stations.

In the above-mentioned pressure is held the tool, the locating component is including being erectly set firmly in the locating needle of pressure holding the station periphery, set up the locating hole on the briquetting corresponds, the locating needle penetrates the locating hole forms the cross-under location.

In the above-mentioned pressure is held tool, the locking component includes the screw, the outside of holding the station is attacked and is established the screw hole, set up the mounting hole on the briquetting corresponds, the screw from top to bottom runs through the mounting hole and with the screw hole forms screw-thread fit and links firmly.

In the pressing jig, the pressing block is connected with the bottom of the pressing claw, the avoidance groove is formed in the bottom of the pressing claw, and the avoidance groove is communicated with the pressing gap.

In the above-mentioned pressure holding jig, a processing through hole is formed in the center of the pressure holding station, and the processing through hole is located between a group of pressure holding pieces.

In the pressing jig, a plurality of limiting blocks are arranged on the periphery of the processing through hole, the limiting blocks are square blocks, and the limiting blocks are fixedly arranged in the pressing station through screws.

In the combination frock of pressure tool, still include female tool, female tool has fixed station, open the processing window on the fixed station, the both ends of fixed station are the symmetry and set up the clamping assembly, the son tool place in the fixed station and by the clamping assembly forms the suppression fixedly.

In the combined tool of the pressing jig, the clamping assembly comprises a clamping block, the side part of the clamping block protrudes and stretches into the clamping head, and the clamping block is fixedly arranged on the female jig through the bolt assembly, so that the clamping head horizontally faces the fixing station.

In the above-mentioned combination fixture of holding the tool, the both ends of sub-tool are the symmetry and set up the screens step, the top surface of screens step is down the inclined plane, the bottom surface of chuck is the upper inclined plane, sub-tool is arranged in fixed station makes the upper inclined plane of chuck suppresses the lower inclined plane of screens step forms fixedly.

Compared with the prior art, the pressing fixture and the combined fixture thereof have the following beneficial effects:

1. according to the utility model, the split type pressing structure is adopted to match with the locking position through multi-point positioning, so that the accumulated tolerance of the assembly and connection of the jig parts is reduced, and the positioning accuracy and the locking position stability are improved.

2. The utility model has simple structure, easy manufacture and assembly and reduced tool cost.

3. The utility model has reliable positioning and clamping, and realizes the avoidance function by adopting a detail structure.

4. According to the utility model, through step positioning, interference between horizontal positioning and longitudinal positioning does not occur, and the positioning accuracy and stability are improved.

Drawings

Fig. 1 is a schematic perspective view of the pressing fixture.

Fig. 2 is a schematic plan view of the pressing fixture.

Fig. 3 is a schematic perspective view of a female jig in the assembly fixture of the pressing jig.

In the figure, 1, a sub-jig; 1a, processing a through hole; 1b, macropores; 1c, small holes; 2. a positioning needle; 3. a pressing member; 3a, pressing claws; 4. a screw; 5. a limiting block; 6. a master jig; 6a, processing window; 7. clamping blocks; 7a, clamping heads; 8. a bolt assembly; 9. a large diameter pin; 10. small diameter pin.

Detailed Description

The following are specific embodiments of the present utility model and the technical solutions of the present utility model will be further described with reference to the accompanying drawings, but the present utility model is not limited to these embodiments.

Example 1

As shown in fig. 1 and 2, the pressing fixture comprises a sub-fixture 1, at least one pressing station is arranged on the sub-fixture 1, at least one group of opposite sides of the pressing station are symmetrically provided with pressing pieces 3, the pressing pieces 3 form positioning with the sub-fixture 1 through a positioning component, and the pressing pieces 3 form locking with the sub-fixture 1 through a locking component.

The sub-jig 1 is of a rectangular plate body structure, the long edge of the sub-jig 1 is concavely provided with a clearance groove, at least one long edge of one side of the sub-jig 1 is concavely provided with two concave arc grooves, the two concave arc grooves are symmetrically arranged at the outer sides of two ends of the clearance groove, and the clearance groove and the concave arc grooves are matched with the operation of a processing tool. Four pressing stations are arranged on the sub-jig 1 in an array.

The pressing piece 3 is provided with a cube-shaped pressing block, one side of the pressing block is integrally provided with a pressing claw 3a in a protruding mode, the edge of the pressing claw 3a is provided with a plurality of teeth in an arrangement mode, the bottoms of the teeth are downwards provided with pressing parts in a protruding mode, and a pressing gap is reserved between the pressing parts and the pressing stations.

The section of the pressing block is I-shaped, and the section of the pressing claw 3a is right triangle. The bottom surface of the pressing claw 3a is a plane, and the top surface is a slope surface gradually inclined downwards by the pressing block, so that an inclined abdication space is formed by the slope surface, the space above the pressing claw is expanded and extended, and the material is convenient to take and place. The multi-point small-area pressing is formed through the plurality of pressing parts, so that the stable pressing effect can be realized, and the large-area pressing damage to materials is avoided.

The positioning assembly comprises a positioning needle 2 which is vertically and fixedly arranged on the periphery of the pressing station, positioning holes are correspondingly formed in the pressing block, and the positioning needle 2 penetrates into the positioning holes to form penetration positioning. At least two positioning needles 2 are arranged at one side of the pressing station, two positioning holes are correspondingly formed in one pressing piece 3, and the two-dimensional position of the pressing piece 3 in a plane is defined through two-point positioning, so that the accurate positioning effect on the pressing piece 3 is realized.

The locking assembly comprises a screw 4, a threaded hole is tapped at the outer side of the pressing station, a mounting hole is correspondingly formed in the pressing block, and the screw 4 penetrates through the mounting hole from top to bottom and is fixedly connected with the threaded hole in a threaded fit mode. At least two threaded holes are formed in one side edge of the pressing station, one pressing piece 3 is locked and fixed by two screws 4, and the space position of the pressing piece 3 on the sub-jig 1 is firmly locked through two-point fixation, so that loosening or dislocation is avoided. The mounting hole is specifically a countersunk hole, and the head of the screw 4 is sunk into the countersunk hole, so that the whole surface is smooth.

The bottom of the pressing block connecting pressing claw 3a is provided with an avoidance groove which is communicated with the pressing gap. When the material is pressed on the pressing station, an avoidance space is formed for the side edge of the material through the avoidance groove, so that the damage to the abutting of the edge of the material is avoided.

The center of the pressing station is provided with a processing through hole 1a, and the processing through hole 1a is positioned between a group of pressing pieces 3. The machining through hole 1a is formed in the sub-jig 1, so that the back surface characteristics of the materials can be machined conveniently after the spindle of the machine tool is turned over.

The periphery side of the processing through hole 1a is provided with a plurality of limiting blocks 5, the limiting blocks 5 are square blocks, and the limiting blocks 5 are fixedly arranged in the pressing station through screws. A plurality of square limit grooves are correspondingly concavely arranged in the pressing station, the limit blocks 5 are embedded in the limit grooves in a one-to-one correspondence manner, and the top of the limit blocks protrudes out of the plane of the pressing station. The protruding part of the limiting block 5 is used for jogging and positioning materials, so that the accuracy of positioning the materials is improved.

Compared with the prior art, the pressing jig has the following beneficial effects:

Example two

Based on the first embodiment, the difference of this embodiment is:

as shown in fig. 3, in the combined fixture of the pressing fixture, the combined fixture further comprises a female fixture 6, the female fixture 6 is provided with a fixing station, a processing window 6a is formed in the fixing station, clamping assemblies are symmetrically arranged at two ends of the fixing station, and the sub-fixture 1 is placed in the fixing station and is pressed and fixed by the clamping assemblies.

The sub-jig 1 is placed on a fixed station to enable the machining through hole 1a to be communicated with the machining window 6a in an aligned mode, and therefore the back surface characteristics of materials can be machined conveniently after the spindle of the machine tool is turned over.

The clamping assembly comprises a clamping block 7, the side part of the clamping block 7 protrudes and stretches into a clamping head 7a, and the clamping block 7 is fixedly arranged on the female jig 6 through a bolt assembly 8, so that the clamping head 7a horizontally faces to a fixing station.

The two ends of the sub-jig 1 are symmetrically provided with clamping steps, the top surface of each clamping step is a lower inclined surface, the bottom surface of the chuck 7a is an upper inclined surface, and the sub-jig 1 is arranged at a fixing station to enable the upper inclined surface of the chuck 7a to press the lower inclined surface of each clamping step to form fixing. The gradual transition pressing mode is realized through inclined surface contact, so that the direct action of vertical downward pressure is decomposed, the protection is formed on the sub-jig 1, and the service life is prolonged.

At least two locating pins are erected on the fixing station, at least two foolproof holes are correspondingly formed in the sub-jig 1, and the locating pins penetrate into the foolproof holes in a one-to-one correspondence mode to form translation limiting. When the sub-jig 1 is placed into the fixed station, the fool-proof holes are correspondingly sleeved with the positioning pins, so that the sub-jig 1 is accurately positioned, and the dislocation problem caused by pressing is avoided.

The number of the positioning pins is two, specifically a large-diameter pin 9 and a small-diameter pin 10, the large-diameter pin 9 is positioned at one end side of the fixing station, and the small-diameter pin 10 is positioned at the other end side of the fixing station; the number of the fool-proof holes is two, namely a large hole 1b and a small hole 1c, wherein the large hole 1b is positioned at one end part of the sub-jig 1, and the small hole 1c is positioned at the other end part of the sub-jig 1; the large-diameter pin 9 is matched with the cross-over large hole 1b, and the small-diameter pin 10 is matched with the cross-over small hole 1c. Through setting up the grafting cooperation of variation in size to realize the directional assembly of sub-tool 1, reach and prevent slow-witted effect, avoid sub-tool 1 reverse assembly to appear processing accident, cause the waste material.

The action mode of the combined tool of the pressing jig is as follows:

1. clamping the plate material on the sub-jig 1 to form accurate positioning;

2. clamping the sub-jig 1 on the main jig 6 to form accurate positioning;

3. the master jig 6 is mounted on a machine tool spindle for machining operations.

Compared with the prior art, the combined tool of the pressing jig has the following beneficial effects:

The specific embodiments described herein are offered by way of example only to illustrate the spirit of the utility model. Those skilled in the art may make various modifications or additions to the described embodiments or substitutions thereof without departing from the spirit of the utility model or exceeding the scope of the utility model as defined in the accompanying claims.

Although sub-jig 1 is used more herein; machining a through hole 1a; a large aperture 1b; a small hole 1c; a positioning needle 2; a pressing member 3; a pressing claw 3a; a screw 4; a limiting block 5; a female jig 6; a processing window 6a; a clamp block 7; a chuck 7a; a bolt assembly 8; a large diameter pin 9; small diameter pin 10, etc., but does not exclude the possibility of using other terms. These terms are used merely for convenience in describing and explaining the nature of the utility model; they are to be interpreted as any additional limitation that is not inconsistent with the spirit of the present utility model.

In the description of the present utility model, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. It will be understood by those of ordinary skill in the art that the terms described above are in a specific sense within the present utility model.

Claims

1. The utility model provides a press and hold tool, includes sub-tool, its characterized in that, set up at least one on the sub-tool and press and hold the station, press at least a set of opposite sides of holding the station and be the symmetry and set up and press the piece, press the piece through locating component with sub-tool forms the location, press the piece through locking component with sub-tool forms the locking.

2. The pressing fixture of claim 1, wherein the pressing member has a cubic pressing block, one side of the pressing block is integrally provided with a convex pressing claw, a plurality of teeth are arranged on the edge of the pressing claw, the bottom of each tooth is provided with a pressing part in a convex manner, and a pressing gap is reserved between the pressing part and the pressing station.

3. The press-holding jig according to claim 2, wherein the positioning assembly comprises positioning pins vertically fixed on the periphery of the press-holding station, positioning holes are correspondingly formed in the pressing block, and the positioning pins penetrate through the positioning holes to form penetration positioning.

4. The press-holding jig according to claim 2, wherein the locking assembly comprises a screw, a threaded hole is tapped at the outer side of the press-holding station, a mounting hole is correspondingly formed in the pressing block, and the screw penetrates through the mounting hole from top to bottom and is fixedly connected with the threaded hole in a threaded fit manner.

5. The pressing jig of claim 2, wherein the pressing block is connected with the bottom of the pressing jaw to form an avoidance groove, and the avoidance groove is communicated with the pressing gap.

6. The press-holding jig of claim 1, wherein a machining port is formed in the center of the press-holding station, the machining port being located between a set of the press-holding members.

7. The press-holding jig according to claim 6, wherein a plurality of limiting blocks are arranged on the periphery of the processing through hole, the limiting blocks are square blocks, and the limiting blocks are fixedly arranged in the press-holding station through screws.

8. The combination fixture of any one of claims 1 to 7, further comprising a female fixture, wherein the female fixture has a fixing station, a processing window is opened in the fixing station, clamping assemblies are symmetrically arranged at two ends of the fixing station, and the sub-fixture is placed in the fixing station and is pressed and fixed by the clamping assemblies.

9. The press-holding jig combination tool of claim 8, wherein the clamping assembly comprises a clamping block, the side portion of the clamping block protrudes from the clamping head, and the clamping block is fixedly arranged on the female jig through a bolt assembly, so that the clamping head horizontally faces the fixing station.

10. The combination fixture of the pressing jig according to claim 9, wherein two ends of the sub-jig are symmetrically provided with clamping steps, the top surface of each clamping step is a lower inclined surface, the bottom surface of the chuck is an upper inclined surface, and the sub-jig is arranged at the fixing station to enable the upper inclined surface of the chuck to press the lower inclined surface of each clamping step to form fixing.