CN215746615U

CN215746615U - Clamp for piston milling

Info

Publication number: CN215746615U
Application number: CN202121233098.7U
Authority: CN
Inventors: 邱永安; 钟华森; 利永娟
Original assignee: Zhaoqing Paisuo Automation Equipment Co ltd
Current assignee: Zhaoqing Paisuo Automation Equipment Co ltd
Priority date: 2021-06-03
Filing date: 2021-06-03
Publication date: 2022-02-08
Anticipated expiration: 2031-06-03

Abstract

The utility model discloses a clamp for milling a piston, wherein an arc-shaped surface and a groove are arranged on the piston, the clamp comprises an installation plate, a pressing plate, bases, a supporting frame seat and a bottom plate, the tops of a plurality of pressing plates are fixed on the installation plate, the front edge and the rear edge of the bottom surface of each pressing plate are respectively provided with a plurality of elastic clamping pieces, the bases and the supporting frame seat are fixed on the bottom plate, the bases are correspondingly positioned in the supporting frame seats, the front edge and the rear edge of the top surface of each supporting frame seat are provided with elastic clamping pieces, the elastic clamping pieces of the pressing plates are matched with the elastic clamping pieces of the supporting frame seats to clamp the arc-shaped surface of the piston, the tops of the bases are provided with elastic limiting pieces, and the elastic limiting pieces are matched with the groove formed in the piston to limit the piston to move in the horizontal direction; the elastic clamping piece of the clamp for milling the piston can limit the piston to move in the vertical direction, and the elastic limiting piece can limit the piston to move in the horizontal direction without damaging the surface of the piston.

Description

Clamp for piston milling

The technical field is as follows:

the utility model relates to the technical field of clamps, in particular to a clamp for milling a piston.

Background art:

the piston is a part which does reciprocating motion in an automobile engine cylinder body, the shape of the piston is related to the selected combustion chamber form, for example, the shape, the position and the size of the piston of the diesel engine must be matched with the mixed gas of the diesel engine to form the part which meets the combustion requirement, so various pits and bulges are often arranged on the top of the piston, the top of the piston generally needs to be milled in the manufacturing process, wherein the existing clamp for milling the piston presses the piston horizontally placed on a V-shaped groove through the matching of an air cylinder and a pressing plate so as to fix the piston, but the surfaces of the pressing plate and the V-shaped groove are hard pressing surfaces, the driving pressure of the air cylinder is higher, and thus the arc-shaped surface of the piston is easily abraded and deformed in the pressing process of the clamp, and the indentation is formed on the surface of the piston, so that the quality of a finished product is influenced.

The utility model has the following contents:

in order to solve the technical problems, the utility model provides an elastic clamping piece of a clamp for milling a piston, which has clamping elasticity and replaces a fixed rigid pressing surface, so that the abrasion caused by overlarge pressure on an arc-shaped surface of the piston in a pressing process is avoided.

The utility model provides a piston mills processing and uses anchor clamps, is provided with arcwall face and recess on the piston, and is including mounting panel, clamp plate, base, carriage seat and bottom plate, it is a plurality of the top of clamp plate is fixed on the mounting panel, just the border position all is provided with a plurality of elasticity holders around the clamp plate bottom surface, and is a plurality of base and carriage seat are fixed on the bottom plate, and a plurality of base correspondence is located a plurality of in the carriage seat, the limit is provided with elasticity holder around the carriage seat top surface, and the clamp plate elasticity holder cooperates the arcwall face with the centre gripping piston with the elasticity holder cooperation of carriage seat, the top of base is provided with the elasticity locating part, the recess cooperation restriction piston that elasticity locating part and piston were seted up moves in the horizontal direction.

Preferably, both the base and the position that support frame seat was provided with the elasticity holder all are provided with the concave surface, just be provided with the storage tank in the concave surface, the elasticity holder includes splint, spring holder and expanding spring, splint are the arc that corresponds with the piston cambered surface, and the surface of splint is provided with the soft glue layer, the spring holder set up in the middle part position of splint extrados, a plurality of expanding spring's one end with the tank bottom of storage tank is connected, expanding spring's the other end with splint are connected, and a plurality of the spring holder correspondence is passed a plurality of expanding spring's inside diameter part.

Preferably, a sliding groove is formed in each spring seat, a plurality of sliding rods are arranged at positions, corresponding to the plurality of sliding grooves, of the groove bottom of the accommodating groove, and the plurality of sliding rods are correspondingly inserted into the plurality of sliding grooves.

Preferably, the length of the sliding rod is smaller than the depth of the accommodating groove, and the length of the sliding groove is the same as that of the sliding rod

Preferably, the outer diameter of the extension spring is equal to the width of the receiving groove.

Preferably, the elastic limiting part comprises a limiting seat, limiting blocks and limiting springs, the limiting seat is fixed on the top surface of the base, and the limiting blocks are correspondingly connected with the front side wall and the rear side wall of the limiting seat through the limiting springs, so that the limiting blocks can move on the top surface of the base.

Preferably, the position of the upper vertex angle of the limiting block, which is far away from the limiting spring, is provided with an inclined surface, and the inclined surface can be pressed when the piston moves downwards, so that the limiting block abuts against the groove of the piston after moving towards the limiting seat.

Preferably, the spacing seat is the T type body of compriseing diaphragm and riser, the one end of spacing spring with the riser lateral wall of spacing seat is connected, the other end of spacing spring with the lateral wall of stopper is connected.

Preferably, the height of the limiting block is equal to the height of a vertical plate of the limiting seat.

The utility model has the beneficial effects that: this piston mills elasticity holder of processing anchor clamps can restrict the piston and moves in the vertical direction, and elasticity locating part can restrict the piston and move in the horizontal direction, and both cooperation fixed pistons of elasticity holder and elasticity locating part, and the elasticity holder has elasticity, and at the in-process of actual centre gripping piston, the position of elasticity holder can be adjusted from top to bottom, replaces fixed rigid pressure face centre gripping piston, avoids the too big and wearing and tearing that cause of pressure that applys to the arcwall face of piston.

Drawings

FIG. 1 is a front view of the present invention;

FIG. 2 is a cross-sectional view taken along line A-A of FIG. 1;

FIG. 3 is an enlarged view of portion B of FIG. 1;

FIG. 4 is an enlarged view of a portion C of FIG. 2;

fig. 5 is a schematic view of another embodiment in fig. 4.

In the figure: the device comprises a mounting plate 1, a pressing plate 2, a base 3, a supporting frame seat 4, a bottom plate 5, an elastic clamping piece 6, a clamping plate 61, a spring seat 62, a telescopic spring 63, a sliding groove 64, a sliding rod 65, an elastic limiting piece 7, a limiting seat 71, a limiting block 72, a limiting spring 73, an inclined plane 74, a transverse plate 75, a vertical plate 76, a piston 8, a groove 81, a concave surface 9 and a containing groove 91.

Detailed Description

The utility model will be further described with reference to the accompanying drawings and specific embodiments so as to more clearly understand the technical idea of the utility model claimed.

As shown in fig. 1 to 5, a fixture for milling a piston, wherein a piston 8 is provided with an arc surface (not shown) and a groove 81, and comprises a mounting plate 1, a pressing plate 2, bases 3, a supporting frame seat 4 and a bottom plate 5, the tops of a plurality of pressing plates 2 are fixed on the mounting plate 1, and the front and rear edge positions of the bottom surface of the pressing plate 2 are respectively provided with a plurality of elastic clamping members 6, wherein the mounting plate 1 can be driven by one of an air cylinder, an oil cylinder, a hydraulic cylinder and an electric cylinder to move the mounting plate 1 up and down, the bases 3 and the supporting frame seat 4 are fixed on the bottom plate 5, the bases 3 are correspondingly positioned in the supporting frame seats 4, the front and rear edges of the top surface of the supporting frame seat 4 are provided with elastic clamping members 6, and the elastic clamping members 6 of the pressing plate 2 are matched with the elastic clamping members 6 of the supporting frame seat 4 to clamp the arc surface of the piston 8, as shown in fig. 1, two pressing plates 2, four bases 3, and four supporting frame seats 4 are used for illustration, two elastic clamping members 6 are respectively disposed at the front edge and the rear edge of the bottom surface of each pressing plate 2, the elastic clamping members 6 on the four supporting frame seats 4 are in one-to-one correspondence with the positions of the four elastic clamping members 6 on the two pressing plates 2, so that the fixture can simultaneously clamp four pistons 8, an elastic limiting member 7 is disposed at the top of the base 3, the elastic limiting member 7 cooperates with a groove 81 formed in the piston 8 to limit the piston 8 to move in the horizontal direction, and as shown in fig. 2, the groove 81 is located in the middle of the piston 8.

The working principle of the clamp for milling the piston is realized by the mutual matching of the mounting plate 1, the pressing plate 2, the base 3, the supporting frame seat 4, the elastic clamping piece 6 and the elastic limiting piece 7, as shown in figure 1, the mounting plate 1 is explained by taking an air cylinder as a driving device, the output end of the air cylinder is in a contracted initial state (not shown in the figure), a worker horizontally places the piston 8 on the elastic clamping piece 6 of the supporting frame seat 4, the elastic clamping piece 6 can be clamped into the groove 81 of the piston 8 and limits the piston 8 to move in the horizontal direction, then the output end of the air cylinder is controlled to extend out and drive the mounting plate 1 and the pressing plate 2 to move downwards, the elastic clamping piece 6 on the pressing plate 2 can be contacted with the piston 8, at the moment, the elastic clamping piece 6 on the pressing plate 2 and the elastic clamping piece 6 on the supporting frame seat 4 can be compressed, so that the position of the elastic clamping piece 6 is changed, and then compress tightly piston 8 gradually and restrict piston 8 and move in vertical direction, elasticity holder 6 and the fixed piston 8 of elasticity locating part 7 cooperation like this, so that piston 8 mills the manufacturing procedure, compare with traditional piston 8 manufacturing clamp, this piston mills elasticity holder 6 of processing with anchor clamps has elasticity, at actual centre gripping piston 8's in-process, because elasticity holder 6 has elasticity, buffer stroke when making piston 8 centre gripping, replace fixed rigid pressure face centre gripping piston 8, avoid the too big and wearing and tearing that cause of pressure that applys the arcwall face of piston 8.

On the concrete structure of elasticity holder 6, the position that base 3 and support frame seat 4 both were provided with elasticity holder 6 all is provided with concave surface 9, just be provided with storage tank 91 in the concave surface 9, elasticity holder 6 includes splint 61, spring holder 62 and expanding spring 63, splint 61 is the arc that corresponds with piston 8 cambered surface, and the shape of concave surface 9 corresponds with the arc and can support the arc, and splint 61's surface is provided with the soft glue layer (not shown in the figure), and elastic deformation can take place for the soft glue layer, helps reducing the atress on piston 8 surface, spring holder 62 sets up in the middle part position of splint 61 extrados, a plurality of one end of expanding spring 63 with the tank bottom of storage tank 91 is connected, the other end of expanding spring 63 with splint 61 is connected, and a plurality of spring holder 62 corresponds and passes a plurality of the inner diameter portion of expanding spring 63, as shown in fig. 1 and 3, the spring seat 62 and the extension spring 63 are illustrated in three, and the clamp plate 61 compresses the extension spring 63 to move toward the receiving groove 91.

Specifically, as shown in fig. 2 and 4, a sliding groove 64 is disposed in each spring seat 62, a plurality of sliding rods 65 are disposed at positions of the groove bottom of the accommodating groove 91 corresponding to the plurality of sliding grooves 64, the plurality of sliding rods 65 are correspondingly inserted into the plurality of sliding grooves 64, the number of the sliding grooves 64 and the number of the sliding rods 65 are the same as the number of the spring seats 62, the spring seat 62 moves along the sliding rods 65 through the sliding grooves 64, and has a guiding function, so as to prevent the position of the expanding spring 63 from shifting in the horizontal direction during the moving process, further, the length of the sliding rod 65 is smaller than the groove depth of the accommodating groove 91, the length of the sliding groove 64 is the same as the length of the sliding rod 65, it should be noted that when the piston is not yet placed on the clamp plate 61, the length of the expanding spring 63 is larger than the groove depth of the accommodating groove 91, and when the expanding spring 63 contracts or extends, the sliding rod 65 is separated from the sliding groove 64, in the length direction of the extension spring 63 from top to bottom, as shown in fig. 5, according to another embodiment of the spring seat 62 and the extension spring 63, the outer diameter of the extension spring 63 is equal to the width of the accommodating groove 91, and the width direction of the accommodating groove 91 is from left to right, so that the extension spring 63 moves along the accommodating groove 91, and the position of the extension spring 63 is prevented from being shifted.

In a specific structure of the elastic limiting member 7, the elastic limiting member 7 includes a limiting seat 71, two limiting blocks 72 and a limiting spring 73, the limiting seat 71 is fixed on the top surface of the base 3, the two limiting blocks 72 are correspondingly connected with the front and rear side walls of the limiting seat 71 through the limiting spring 73, so that the limiting blocks 72 can move on the top surface of the base 3, specifically, an inclined surface 74 is disposed at an upper vertex position of the limiting block 72 away from the limiting spring 73, and the inclined surface 74 can be pressed when the piston 8 moves downward, so that the limiting blocks 72 can push against the groove 81 of the piston 8 after moving toward the limiting seat 71, as shown in fig. 2, the inclined surface 74 on the limiting blocks 72 is inclined upward to downward, the piston 8 can contact with the inclined surface 74 of the limiting blocks 72 when moving downward, and a portion of the piston 8 contacting with the inclined surface 74 can move along the inclined surface 74, and the piston 8 extrudes the limit block 72 to enable the limit spring 73 to contract, so that the limit block 72 moves towards the limit seat 71 and is clamped into the groove 81 of the piston 8, and the limit block 72 abuts against the piston 8 to limit the piston 8 to move in the horizontal direction.

In the concrete structure of spacing seat 71, spacing seat 71 is the T type body of compriseing diaphragm 75 and riser 76, the one end of spacing spring 73 with the riser 76 lateral wall of spacing seat 71 is connected, the other end of spacing spring 73 with the lateral wall of stopper 72 is connected, avoids stopper 72 to drop from the top surface of base 3, the length of stopper 72 equals with piston 8's external diameter, stopper 72 highly with the riser 76 height of spacing seat 71 equals, as shown in fig. 1, be the length direction of stopper 72 along left to right, stopper 72 removes in spacing seat 71, has the guide effect.

The above description is only an embodiment of the present invention, and not intended to limit the scope of the present invention, and all modifications of equivalent structures and equivalent processes performed by the present invention and the contents of the attached drawings, or directly or indirectly applied to other related technical fields, are included in the scope of the present invention.

Claims

1. The utility model provides a piston mills processing and uses anchor clamps, is provided with arcwall face and recess on the piston, its characterized in that: including mounting panel, clamp plate, base, support frame seat and bottom plate, it is a plurality of the top of clamp plate is fixed on the mounting panel, just the marginal position all is provided with a plurality of elasticity holders, a plurality of around the clamp plate bottom surface base and support frame seat are fixed on the bottom plate, and a plurality of bases correspond and are located a plurality ofly in the support frame seat, the limit is provided with elasticity holder around the support frame seat top surface, and the clamp plate elasticity holder cooperates the arcwall face with the centre gripping piston with the elasticity holder of support frame seat, the top of base is provided with the elasticity locating part, the recess cooperation restriction piston that elasticity locating part and piston were seted up moves in the horizontal direction.

2. The piston milling fixture as recited in claim 1, wherein: base and support frame seat both are provided with the position of elasticity holder and all are provided with the concave surface, just be provided with the storage tank in the concave surface, the elasticity holder includes splint, spring holder and expanding spring, splint are the arc that corresponds with the piston cambered surface, and the surface of splint is provided with the soft glue layer, the spring holder set up in the middle part position of splint extrados, it is a plurality of expanding spring's one end with the tank bottom of storage tank is connected, expanding spring's the other end with splint are connected, and are a plurality of the spring holder correspondence is passed a plurality of expanding spring's internal diameter part.

3. The piston milling fixture as recited in claim 2, wherein: every be provided with the spout in the spring holder, the tank bottom of storage tank corresponds a plurality of the spout position is provided with a plurality of slide bars, and is a plurality of the slide bar corresponds and inserts a plurality ofly in the spout.

4. The piston milling fixture as recited in claim 3, wherein: the length of the sliding rod is smaller than the depth of the accommodating groove, and the length of the sliding groove is the same as that of the sliding rod.

5. The piston milling fixture as recited in claim 2, wherein: the outer diameter of the telescopic spring is equal to the groove width of the accommodating groove.

6. The piston milling fixture as recited in claim 1, wherein: the elastic limiting part comprises a limiting seat, limiting blocks and limiting springs, the limiting seat is fixed on the top surface of the base, and the limiting blocks are connected with the front side wall and the rear side wall of the limiting seat through the limiting springs in a corresponding mode, so that the limiting blocks can move on the top surface of the base.

7. The piston milling fixture as recited in claim 6, wherein: the position of the upper vertex angle of the limiting block, which is far away from the limiting spring, is provided with an inclined plane, and the inclined plane can be pressed when the piston moves downwards, so that the limiting block can prop against the groove of the piston after moving towards the limiting seat.

8. The piston milling fixture as recited in claim 6, wherein: the limiting seat is a T-shaped body composed of a transverse plate and a vertical plate, one end of a limiting spring is connected with the side wall of the vertical plate of the limiting seat, and the other end of the limiting spring is connected with the side wall of the limiting block.

9. The piston milling fixture as recited in claim 7, wherein: the height of the limiting block is equal to the height of the vertical plate of the limiting seat.