CN214237134U - Clamp for machining - Google Patents

Abstract

The utility model discloses an anchor clamps for machining, comprising a base plate, the bottom plate is provided with supporting component, supporting component includes first support, second support and third support, first support sets up the region between second support and third support, first support, second support and third support form three point support, the bottom plate still is provided with and pushes down the subassembly, it has first casting die to push down the subassembly, second casting die and third casting die, first casting die and first support, second casting die and second support, third casting die and third support press from both sides tight product along upper and lower direction, the bottom plate is provided with the top piece, it is used for upwards jacking the product to go up the top piece, it sets up between first support and third support to go up the top piece, the bottom plate is provided with the fourth casting die, fourth casting die and the fixed product of top piece cooperation. The utility model discloses an anchor clamps for machine tooling, fixed product that can be firm reduces and even avoids the product to vibrate or warp in the course of working, improves machining quality.

Description

Clamp for machining

Technical Field

The utility model relates to a machining technique, in particular to anchor clamps for machine tooling.

Background

In the machine manufacturing industry, machining is a common and efficient machining process, and generally requires the use of a machine tool and a machining fixture.

Structurally, the machining fixture has a bottom plate, two master plates, a pressing block and a cylinder, wherein the two master plates are perpendicular to each other, so that a product is positioned in the horizontal direction.

During the use, place the product at the bottom plate, simultaneously, in the horizontal direction, make the product and two profiling boards contact to, utilize the bottom plate to realize the location of direction from top to bottom, utilize the profiling board to realize the location of horizontal direction.

Then, the cylinder drives the pressing block to descend, and the pressing block and the bottom plate jointly extrude the product, so that the product is fixed.

In order to adapt to the various conditions of product shape, the bottom plate is generally provided with three fulcrums, and then, accomplishes the support to the product.

However, as the machining progresses, the material of the product decreases, the strength becomes weaker, and the product is likely to vibrate or deform during the machining process, which affects the machining quality.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to solve one of the technical problem that exists among the prior art at least, provide an anchor clamps for machining, fixed product that can be firm reduces and even avoids the product to vibrate or warp in the course of working, improves the machining quality.

The utility model discloses a realize through following technical scheme:

the first aspect of the utility model provides a clamp for machining, including the bottom plate, the bottom plate is provided with the supporting component, the supporting component is used for supporting the product, the supporting component includes first support, second support and third support, first support set up in the region between second support and the third support, first support, second support and the third support form three point support, the bottom plate is still provided with the push-down subassembly, the push-down subassembly has first pushing part, second pushing part and third pushing part, first pushing part with the first support, second pushing part with the second support, third pushing part with the third support clamp the product along upper and lower direction, the bottom plate is provided with the top piece, the top piece is used for jacking the product upwards, the top piece set up in between first support and the third support, the bottom plate is provided with the fourth pushing down piece, the fourth pushing down piece with go up the cooperation of top piece and fix the product.

According to the utility model discloses an anchor clamps for machine tooling of first aspect, the bottom plate is provided with the breach, the breach set up in the fourth lower pressure piece with between the first support.

According to the utility model discloses a anchor clamps for machining, go up the ejecting member and be the locking cylinder.

According to the utility model discloses an anchor clamps for machining, the bottom plate be provided with the side pressure subassembly, the side pressure subassembly includes first side casting die, first side casting die set up in first support is close to the second support with third support one side, first side casting die is used for pushing the product to first support, first support correspondence is provided with first side and leans on the mould face, the second support has second side and leans on the mould face, the third support correspondence is provided with third side and leans on the mould face, first side lean on the mould face the second side lean on the mould face with third side is leaned on the mould face and is formed three point spacing.

According to the utility model discloses an anchor clamps for machining, second side profiling face with first side profiling face parallel arrangement, the effort of first side casting die is directional first support with between the second support.

According to the utility model discloses an anchor clamps for machining, side pressure subassembly still includes second side casting die, the second side casting die is located the second support dorsad first support one side, the effort direction of second side casting die by the second support is directional first support, the second side casting die is used for pushing the product to the third support.

According to the utility model discloses an anchor clamps for machining, side pressure subassembly still includes third side casting die, third side casting die is close to the third support sets up, the effort of third side casting die is directional the third support, the third side casting die with the fixed product of third side profiling face cooperation.

According to the utility model discloses an anchor clamps for machine tooling of first aspect, third side casting die has third side depression bar, drives the third cylinder of third side depression bar translation, the bottom plate is provided with the guide holder, the guide holder is provided with the holding the guiding hole that third side depression bar removed.

According to the utility model discloses an anchor clamps for machining, the bottom plate still is provided with side direction pretension subassembly, side direction pretension subassembly has first suppression piece and second suppression piece, the force application direction of first suppression piece is directional first support with between the second support, the force application direction of second suppression piece is directional first support with between the third support.

According to the utility model discloses an anchor clamps for machine tooling, first suppress piece have the installing support, with installing support horizontal sliding connection's slide bar, set up in the butt awl of slide bar one end, set up in the supporting spring of the slide bar other end, the pointed end of butt awl is used for the butt product, supporting spring is used for promoting the slide bar removes towards the product.

Has the advantages that: compared with the prior art, the utility model discloses an anchor clamps for machining is through setting up supporting component and push down the subassembly to, form three point support and three point and compress tightly, accomplish the fixed to the product, simultaneously, the contact of minimize and product, on the one hand, can reach the purpose of dodging the product, avoid product manufacturing error and with product pressure deformation when the clamping, on the other hand, because furthest dodges the product, can be used for the production of series of products, reduce anchor clamps quantity, reduction in production cost.

And simultaneously, the utility model discloses an anchor clamps for machining are through setting up top and fourth holding down, thereby, when the subassembly is accomplished fixedly to the product down, go up the top jacking that makes progress, go up the non-reference face contact of top and product, and then, go up the top and realize that the fourth point compresses tightly fixedly with the fourth holding down cooperation, therefore, can compress tightly the position with the fourth point and arrange near being close to product processing position, strengthen the product edge, and then, when the machine tooling cutter adds man-hour, the deformation and the vibration of product are all little, can guarantee the processingquality of cutting face.

Drawings

The present invention will be further described with reference to the accompanying drawings and examples;

fig. 1 is a schematic structural diagram of an embodiment of the present invention;

FIG. 2 is a schematic structural view of the assembly of FIG. 1 including a support assembly, a hold-down assembly and a lateral pressure assembly;

FIG. 3 is a schematic structural view of the assembly of FIG. 1 including a support assembly and a lateral pretensioning assembly;

fig. 4 is a schematic structural diagram of the first support in fig. 1.

Reference numerals: 100-first support, 110-first side mould leaning surface, 120-first bottom mould leaning surface, 130-first concave part, 140-first concave part, 200-second support, 210-second side mould leaning surface, 220-second bottom mould leaning surface, 300-third support, 310-first seat body, 320-support column, 330-third bottom mould leaning surface, 340-third side mould leaning surface, 400-first lower pressing piece, 410-first cross arm, 420-rotary cylinder, 450-second lower pressing piece, 460-third lower pressing piece, 500-first side pressing piece, 510-second side pressing piece, 520-third side pressing piece, 521-third side pressing piece, 522-third cylinder, 523-guide seat, 600-first elastic pressing piece, 610-mounting bracket, 620-sliding rod, 630-abutting cone, 650-second elastic pressing piece, 670-positioning rod, 680-positioning column, 700-upper top piece, 710-fourth lower pressing piece and 720-notch.

Detailed Description

This section will describe in detail the embodiments of the present invention, preferred embodiments of the present invention are shown in the attached drawings, which are used to supplement the description of the text part of the specification with figures, so that one can intuitively and vividly understand each technical feature and the whole technical solution of the present invention, but they cannot be understood as the limitation of the protection scope of the present invention.

In the description of the present invention, it should be understood that the orientation or positional relationship indicated with respect to the orientation description, such as up, down, front, rear, left, right, etc., is based on the orientation or positional relationship shown in the drawings, and is only for convenience of description and simplification of description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.

In the description of the present invention, a plurality of means are one or more, a plurality of means are two or more, and the terms greater than, less than, exceeding, etc. are understood as not including the number, and the terms greater than, less than, within, etc. are understood as including the number. If the first and second are described for the purpose of distinguishing technical features, they are not to be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated or implicitly indicating the precedence of the technical features indicated.

In the description of the present invention, unless there is an explicit limitation, the words such as setting, installation, connection, etc. should be understood in a broad sense, and those skilled in the art can reasonably determine the specific meanings of the above words in combination with the specific contents of the technical solution.

Referring to FIG. 1, an embodiment of a machining fixture is provided.

In this embodiment, the present embodiment relates to a base plate, which forms the mounting base.

In order to place the product, the base plate is provided with a support assembly for supporting the product.

Referring to fig. 1 and 2, in particular, the support assembly includes a first support 100, a second support 200, and a third support 300, the first support 100 being disposed in a region between the second support 200 and the third support 300.

The first mount 100, the second mount 200 and the third mount 300 form a three-point support, i.e. the line connecting the first mount 100, the second mount 200 and the third mount 300 forms a triangle, preferably a nearly right-angled triangle.

Preferably, the first pedestal 100 is provided with a first bottom mold surface 120, the second pedestal 200 is provided with a second bottom mold surface 220220, and the third pedestal 300 is provided with a third bottom mold surface 330.

In order to fix the product, in this embodiment, the bottom plate is further provided with a pressing assembly, the pressing assembly has a first pressing member 400, a second pressing member 450 and a third pressing member 460, and the first pressing member 400 and the first support 100, the second pressing member 450 and the second support 200, and the third pressing member 460 and the third support 300 clamp the product in the up-down direction.

For the first lower press 400, the second lower press 450, and the third lower press 460, it is preferable to use a cylinder drive, thereby facilitating the arrangement on the turntable as shown.

In order to solve the problem that products are easy to move in the machining process, in this embodiment, a side pressing assembly is further provided, the side pressing assembly includes a first side pressing member 500, the first side pressing member 500 is disposed on one side of the first support 100 close to the second support 200 and the third support 300, the first side pressing member 500 is used for pushing the products to the first support 100, the first support 100 is correspondingly provided with a first side mold leaning surface 110, the second support 200 is provided with a second side mold leaning surface 210, the third support 300 is correspondingly provided with a third side mold leaning surface 340, and the first side mold leaning surface 110, the second side mold leaning surface 210 and the third side mold leaning surface 340 form three-point limiting positions.

In summary, the first support 100, the second support 200, and the third support 300 are provided in the embodiment, so that three-point support is formed, the requirement of supporting a product is met, and the product is adaptable to various shapes of the product.

Meanwhile, the present embodiment forms a three-point compression by providing the first, second, and third pressing members 400, 450, and 460, so that the product is fixed on the first, second, and third holders 100, 200, and 300.

In addition, in the embodiment, the first side pressing member 500 is provided, so that the product is pushed to the first side die contact surface 110 of the first support 100, and the product is kept in contact with the first side die contact surface 110, therefore, the product is not easy to move in the machining process, and the defects caused by the movement of the product are avoided.

In addition, in this embodiment, the second side die surface 210 and the third side die surface 340 are further provided, so that the product is prevented from rotating around the first side die surface 110, the defect caused by the product moving or deflecting is reduced, and finally, the product is ensured to be stationary relative to the clamp in the machining process, so that the machining process is stable, and the machining precision of the product is high.

Referring to fig. 1 and 2, in the present embodiment, the bottom plate is provided with an upper top 700, the upper top 700 is used for lifting up a product, the upper top 700 is disposed between the first support 100 and the third support 300, the bottom plate is provided with a fourth lower press 710, and the fourth lower press 710 cooperates with the upper top 700 to fix the product.

This embodiment is through setting up top 700 and fourth holding down piece 710, thereby, when the subassembly that pushes down accomplishes the fixed to the product, top 700 is upwards jacking, top 700 is with the non-reference surface contact of product, and then, top 700 is realized compressing tightly fixedly with the fourth holding down piece 710 cooperation fourth point, therefore, can compress tightly the position with the fourth point and arrange near being close to product processing position, strengthen the product edge, and then, when the machine tooling cutter adds man-hour, the deformation and the vibration of product are all little, can guarantee the processingquality of cutting face.

In some preferred embodiments, the bottom plate may be provided with a notch 720, and the notch 720 is disposed between the fourth pressing member 710 and the first seat 100.

Thus, the cutter is made closer to the fourth lower press piece 710 and the upper top piece 700, facilitating the cutting of the product.

In some preferred embodiments, the upper head 700 may be made as a lock cylinder.

Therefore, the upper top piece 700 is fixed after rising, and product looseness caused by air pressure fluctuation is avoided.

In some preferred embodiments, the second side molding surface 210 may be disposed parallel to the first side molding surface 110, and the force of the first side pressing member 500 is directed between the first seat 100 and the second seat 200.

Thus, ensuring that the product is simultaneously in contact with the first side die surface 110 and the second side die surface 210 reduces deflection errors of the product.

In some preferred embodiments, the side pressing assembly may further include a second side pressing member 510, the second side pressing member 510 is located on a side of the second support 200 facing away from the first support 100, a force of the second side pressing member 510 is directed from the second support 200 to the first support 100, and the second side pressing member 510 is used for pushing the product toward the third support 300.

Thus, the second side press member 510 pushes the product toward the third mount 300 so that the product is held in contact with the third side mold surface 340 while the portion of the product adjacent to the second mount 200 is fixed.

In some preferred embodiments, the side press assembly may further comprise a third press member 520, the third press member 520 being disposed adjacent to the third support 300, the force of the third press member 520 being directed toward the third support 300, the third press member 520 cooperating with the third side molding surface 340 to secure the product.

Therefore, the portion of the product near the third support 300 is fixed, thereby preventing the product from generating flexible vibration when the long and narrow plate is produced, and being beneficial to improving the surface quality of machining.

In some detailed embodiments, the third pressing member 520 has a third side pressing rod 521 and a third cylinder 522 for driving the third side pressing rod 521 to translate, the bottom plate is provided with a guide seat 523, and the guide seat 523 is provided with a guide hole for accommodating the movement of the third side pressing rod 521.

Therefore, the movement of the third side pressing rod 521 is positioned and guided, so that the third side pressing rod 521 is prevented from being inclined, and side pressing is prevented from being unreliable or invalid.

In some detailed embodiments, the end of the third side pressing rod 521 can be provided with a thorn, thereby increasing the friction force and preventing the product from sliding relative to the third side pressing rod 521.

In some preferred embodiments, the third support 300 may include a first fastening structure 310 and a supporting pillar 320, the first fastening structure 310 is provided with a third mold-supporting surface 340, the top end of the supporting pillar 320 forms a third bottom mold-supporting surface 330, and the third bottom mold-supporting surface 330 and the third pressing member 460 clamp and fix the product.

Therefore, the problem that the bottom surface reference position and the side surface reference position of the product are far can be solved, and meanwhile, the product series with different specifications can be adapted by replacing different support columns 320.

In some preferred embodiments, the first hold-down element 400 may be disposed adjacent to the first hold-down element 500, and the first hold-down element 400 may include a first crossbar 410, a rotary cylinder 420 for rotatably holding down the first crossbar 410, the first crossbar 410 spanning over the product, and the first crossbar 410 having a distal end that engages the first seat 100 to clamp the product.

Thus, as shown in the figure, the occupied space of the clamp can be reduced, and meanwhile, the position on the product close to the first support 100 is convenient to machine, and the risk that the clamp touches the cutter is reduced.

In some preferred embodiments, the first hold-down member 400, the second hold-down member 450, and the third hold-down member 460 may be mounted on a side of the second bracket 200 that is connected to the third bracket 300, away from the first bracket 100.

Therefore, the positions of the products close to the first, second and third supports 100, 200 and 300 can be processed without being hindered by the first, second and third hold-down members 400, 450 and 460, and simultaneously, the processing positions are close to the first, second and third supports 100, 200 and 300 as much as possible, thereby avoiding the processing errors caused by the deformation of the products.

Referring to fig. 1 and fig. 3, the present embodiment is further provided with a lateral pre-tightening assembly, which is configured to horizontally push the product to the positioning assembly, that is, push the product to the first side mold backing surface 110, the second side mold backing surface 210, and the third side mold backing surface 340, so that the product is in contact with the first side mold backing surface 110, the second side mold backing surface 210, and the third side mold backing surface 340, and the positioning is achieved by abutting contact, thereby avoiding errors caused by improper operation.

Specifically, the lateral pretensioning assembly has a first spring 600 and a second spring 650, the force application direction of the first spring 600 is directed between the first support 100 and the second support 200, and the force application direction of the second spring 650 is directed between the first support 100 and the third support 300.

In detail, the first spring press 600 may have a mounting bracket 610, a sliding rod 620 horizontally slidably connected to the mounting bracket 610, an abutment cone 630 disposed at one end of the sliding rod 620, and a supporting spring disposed at the other end of the sliding rod 620, wherein a tip of the abutment cone 630 is used for abutting against a product, and the supporting spring is used for pushing the sliding rod 620 to move towards the product.

Abutment cone 630 is preferably rubber and the outer surface of abutment cone 630 is preferably spherical to increase the contact area, improve resistance to wear and cutting, and avoid breakage during use.

The supporting springs are not shown in the view, but the first and second springs 600 and 650 may be formed in other elastic structures without being described in detail.

In summary, in the embodiment, by providing the first support 100, the second support 200 and the third support 300, the first support 100 has the first bottom mold supporting surface 120 and the first side mold supporting surface 110, so that the first support 100, the second support 200 and the third support 300 are utilized to support and position the product, which replaces the original positioning manner, can reduce the contact area with the product, reduce the pressure injury, adapt to the various situations of the product appearance, and in addition, reduce the processing difficulty of the bottom plate.

In addition, in the present embodiment, by providing the lateral preloading component, the lateral preloading component is provided with the first spring pressing member 600 and the second spring pressing member 650, so that the first spring pressing member 600 pushes the product to the second support 200, the second spring pressing member pushes the product to the third support 300, and the resultant force of the first spring pressing member 600 and the second spring pressing member 650 pushes the product to the first support 100, thereby simultaneously keeping the product in contact with the first support 100, the second support 200 and the third support 300, ensuring accurate positioning and avoiding the situation that hands are not placed in place.

Meanwhile, the first support 100, the second support 200 and the third support 300 replace a bottom plate, so that the area for supporting a product is reduced, the resistance for pushing the product is reduced, the lateral pre-tightening assembly is convenient to push the product, and the positioning reliability is improved.

In addition, in operation, staff can contact the product with the lateral pre-tightening assembly firstly, push the first elastic pressing piece 600 and the second elastic pressing piece 650 to retreat, then press the product to the positioning assembly, complete charging, and the charging is quick and accurate and is not easy to reverse.

In some preferred embodiments, the mounting bracket 610 may be provided with a position detector for detecting the position of the slide bar 620, and the form of the position detector may be various according to choice and purchase.

Therefore, by detecting the position of the sliding rod 620, whether the product is accurately positioned or not can be judged, and a defective product is prevented from being processed or a cutter is prevented from being broken.

In some preferred embodiments, the distance between the first holder 100 and the third holder 300 may be made greater than the distance between the first holder 100 and the second holder 200.

Therefore, the positioning requirements of different products are met, the positioning precision can be improved, and the torsion deviation is reduced.

In some preferred embodiments, the positioning assembly may further include two positioning rods 670, the side surfaces of the two positioning rods 670 are used for supporting the product, the two positioning rods 670 are located between the first seat 100 and the third seat 300, and the force application direction of the second spring press 650 is directed between the two positioning rods 670.

Therefore, the two positioning rods 670 position and limit the product, so that the reverse installation can be prevented, and the product can be elastically deformed to cause inaccurate positioning.

In some preferred embodiments, the positioning assembly further includes a positioning pillar 680, the positioning pillar 680 is disposed between the first support 100 and the second support 200, a side surface of the positioning pillar 680 is used for supporting the product, and the force application direction of the first spring pressing member 600 is directed between the positioning pillar 680 and the first support 100 or between the positioning pillar 680 and the second support 200.

Similarly, the positioning column 680 is arranged, so that the problem of insufficient space between the first support 100 and the second support 200 can be solved, and various positioning requirements can be met.

In some preferred embodiments, the third mount 300 may be provided with a third recess connected to the bottom of the third side mold surface 340.

Therefore, the method is suitable for the condition that the edge of the product has excess materials, reduces the quality requirement of the product blank, simplifies the process route, and avoids increasing the workload of operators, such as frequently removing burrs on the edge of the product.

In some preferred embodiments, the third holder 300 may be provided with a lower slope surface connected to the bottom of the third recess, and the bottom edge of the lower slope surface is disposed adjacent to the support seat.

Therefore, the lower inclined plane is provided, so that the bottom area of the third mount 300 can be increased, the stability of the third mount 300 can be improved, and the installation and fixation can be facilitated.

Referring to fig. 4, in the first holder 100, the first holder 100 structurally includes an attachment body for attaching and fixing the first holder 100 and a positioning body for positioning a product, and the attachment body and the positioning body may be integrally manufactured or may be separately manufactured.

When the installation body and the locating body are manufactured in a split mode, different materials can be selected, cost is reduced, meanwhile, the locating body is made of wear-resistant materials, the wear-resistant capacity of the first support 100 is improved, and the first support 100 is durable.

In some preferred embodiments, the mounting body may have a mounting hole, and the positioning body may be provided with a second recess, the mounting hole receiving the shaft portion of the bolt, and the second recess receiving the head portion of the bolt.

As shown, four mounting holes are provided in the first bracket 100, thereby uniformly fixing the mounting body and preventing looseness.

Meanwhile, the second concave position is arranged, so that the connection strength of the mounting body and the positioning body is enhanced objectively, and the bolt is prevented from being damaged.

For the location body, the location body sets up in the top of installation body, and the location body has first end and leans on die surface 120 and first side to lean on die surface 110, and wherein, first end leans on die surface 120 level to set up, and first end leans on die surface 120 and the bottom butt location of product, and first side leans on die surface 110 to erect the setting, and first side leans on the side butt location of die surface 110 and product.

In order to avoid the excess material of the product edge, such as flash and burr, in the first support 100, the height position of the first bottom die-contacting surface 120 is lower than the bottom edge of the first side die-contacting surface 110, the positioning body is provided with a first concave portion 130, the first concave portion 130 is positioned on the side of the first bottom die-contacting surface 120 close to the first side die-contacting surface 110, the first concave portion 130 is provided with a first concave portion 140, and the first concave portion 140 is arranged at the bottom of the first side die-contacting surface 110.

To sum up, first support 100 is through setting up the installation body and the location body, make the location body be located the top of installation body, still make the location body have first end by die face 120 and first side by die face 110, therefore, make first support 100 hold concurrently the function of the locating plate and the copying board of original anchor clamps, and simultaneously, still make first support 100 have small, simple to operate's characteristics, easily use different positions, can adapt to the manifold condition of product appearance, reduce the anchor clamps design degree of difficulty, shorten the design cycle of anchor clamps, easily realize standardizedly.

Meanwhile, the first support 100 is provided with the first concave part 130 and the first concave position 140, so that when excess materials exist at the edge of a product, the excess materials can be reasonably avoided, the positioning is prevented from being influenced, and therefore, the quality requirement of the blank can be reduced.

In some preferred embodiments, a first inclined surface may be connected to the top edge of the first side mold surface 110, and the top edge of the first inclined surface extends away from the first bottom mold surface 120.

Therefore, when the product is placed from top to bottom, the first inclined plane can guide the product, avoid the product edge to damage, still ensure that the side of product can contact first side and lean on the mould face 110, ensure the location accuracy, reduce the operation degree of difficulty.

In some preferred embodiments, the positioning body may be provided with a second inclined surface connected to the first bottom mold surface 120, the top of the second inclined surface is connected to the first bottom mold surface 120, and the second inclined surface is provided on the adjacent side of the first bottom mold surface 120 and the first side mold surface 110.

Therefore, when the staff observes the first side mold leaning surface 110 and uses the horizontal movement to contact and position the product, the second inclined surface can also guide the product, reduce the contact between the edge of the product and the edge of the first bottom mold leaning surface 120, so that the bottom surface of the product is accurately located on the first bottom mold leaning surface 120, and the accurate positioning in the vertical direction is ensured.

In some preferred embodiments, a fifth inclined surface may be connected to each of the horizontal side edges of the first side mold surface 110, and the fifth inclined surface extends in a direction away from the first bottom mold surface 120.

Similarly, when the staff adopts the horizontal migration product with the contact location, the fifth inclined plane can lead to the removal of product, adapts to the various and unable reasonable selection horizontal migration direction's of product appearance condition, in the operation, gives the staff certain degree of freedom.

In some preferred embodiments, the positioning body may be provided with a third inclined surface, the third inclined surface is disposed on the adjacent side of the first bottom mold surface 120 and the first side mold surface 110, and the top edge of the third inclined surface is disposed near the second inclined surface.

Thus, by providing the third inclined surface, the space around the first bottom die surface 120 is increased, and the risk of interference is reduced.

In some preferred embodiments, the top edge of the third inclined surface can be lower than the bottom edge of the second inclined surface.

Therefore, the second inclined surface and the third inclined surface form step guide, and the staff can feel in place, so that the staff can conveniently confirm whether the product is placed in place.

Meanwhile, a larger avoidance space is provided, and the device is suitable for the conditions of small product positioning surface and complex surrounding structure.

In some preferred embodiments, the top edge of the third inclined surface may be lower than the bottom surface of the first recess 130.

Therefore, the use requirement is met, the manufacturing is convenient, and the tool is prevented from being broken due to stress when the third inclined plane or the first concave part 130 is formed by machining.

In some preferred embodiments, the positioning body may be provided with a fourth inclined surface, the fourth inclined surface is disposed on the side of the first bottom mold surface 120 away from the first side mold surface 110, and the top edge of the fourth inclined surface is disposed near the first bottom mold surface 120.

To skilled operative employee, the product can be removed by the orientation of die face 110 on the first side of perpendicular to the general probability, and sets up the fourth inclined plane, also can be convenient lead, reduce to collide with, also be convenient for strike off the piece, avoid influencing the location.

In some preferred embodiments, the top edge of the fourth slope may be lower than the first bottom mold surface 120.

Therefore, when the product is lapped on the fourth inclined surface, the product can slide towards the direction far away from the first side close to the die surface 110, so that the condition that the product is not placed in place is highlighted, the operation confirmation and correction are convenient, and the charging accuracy is improved.

Referring to fig. 1, in order to form the first side mold surface 110, the positioning body may have a first protrusion, and the first side mold surface 110 may be disposed at one side of the first protrusion.

In some preferred embodiments, a side of the first protrusion facing away from the first side mold surface 110 may be provided with a first protrusion extending downward to a bottom surface of the mounting body.

Therefore, the solid of the first protrusion is increased, the strength of supporting the first side die contact surface 110 is increased, and the weight is reduced as much as possible.

The embodiments of the present invention have been described in detail with reference to the accompanying drawings, but the present invention is not limited to the above embodiments, and various changes can be made without departing from the spirit of the present invention within the knowledge of those skilled in the art.

Claims (10)

1. A clamp for machining, characterized by comprising a base plate provided with a support assembly for supporting a product, the support assembly comprising a first support (100), a second support (200) and a third support (300), the first support (100) being arranged in an area between the second support (200) and the third support (300), the first support (100), the second support (200) and the third support (300) forming a three-point support, the base plate being further provided with a hold-down assembly having a first hold-down member (400), a second hold-down member (450) and a third hold-down member (460), the first hold-down member (400) clamping the product in an up-down direction with the first support (100), the second hold-down member (450) with the second support (200), the third hold-down member (460) with the third support (300), the bottom plate is provided with top member (700), go up top member (700) and be used for upwards jack-up with the product, go up top member (700) set up in first support (100) with between third support (300), the bottom plate is provided with fourth holding down piece (710), fourth holding down piece (710) with go up top member (700) cooperation fixed product.

2. A clamp for machining according to claim 1, characterized in that said base plate is provided with a notch (720), said notch (720) being provided between said fourth hold-down member (710) and said first seat (100).

3. A clamp for machining according to claim 1, characterized in that said upper ejection member (700) is a lock cylinder.

4. A jig for machining according to claim 1, characterized in that the base plate is provided with a side pressing assembly, the side pressing assembly comprises a first side pressing member (500), the first side pressing member (500) is arranged on one side of the first support (100) close to the second support (200) and the third support (300), the first side pressing member (500) is used for pushing the product to the first support (100), the first support (100) is correspondingly provided with a first side mould-leaning surface (110), the second support (200) is provided with a second side mould-leaning surface (210), the third support (300) is correspondingly provided with a third side mould-leaning surface (340), and the first side mould-leaning surface (110), the second side mould-leaning surface (210) and the third side mould-leaning surface (340) form a three-point limit.

5. A jig for machining according to claim 4, characterized in that the second side die surface (210) is arranged parallel to the first side die surface (110), the force of the first side presser (500) being directed between the first seat (100) and the second seat (200).

6. A fixture for machining according to claim 5, characterized in that said lateral pressing assembly further comprises a second lateral pressing member (510), said second lateral pressing member (510) being located on a side of said second seat (200) facing away from said first seat (100), a force direction of said second lateral pressing member (510) being directed from said second seat (200) to said first seat (100), said second lateral pressing member (510) being adapted to push the product towards said third seat (300).

7. The clamp for machining according to claim 4, characterized in that the lateral pressing assembly further comprises a third pressing member (520), the third pressing member (520) is arranged close to the third support (300), the acting force of the third pressing member (520) is directed to the third support (300), and the third pressing member (520) and the third side die rest surface (340) are matched to fix a product.

8. The jig for machining according to claim 7, characterized in that the third pressing member (520) has a third side pressing rod (521) and a third cylinder (522) driving the third side pressing rod (521) to translate, the bottom plate is provided with a guide seat (523), and the guide seat (523) is provided with a guide hole for accommodating the third side pressing rod (521) to move.

9. A jig for machining according to claim 1, wherein the base plate is further provided with a lateral pretensioning assembly having a first spring (600) and a second spring (650), the direction of the force applied by the first spring (600) being directed between the first holder (100) and the second holder (200), and the direction of the force applied by the second spring (650) being directed between the first holder (100) and the third holder (300).

10. A clamp for machining according to claim 9, characterized in that the first spring press (600) has a mounting bracket (610), a slide bar (620) horizontally slidably connected to the mounting bracket (610), an abutment cone (630) provided at one end of the slide bar (620), a support spring provided at the other end of the slide bar (620), the tip of the abutment cone (630) being used for abutting the product, the support spring being used for pushing the slide bar (620) to move towards the product.

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