CN215824840U

CN215824840U - A quick positioning fixture for machining equipment

Info

Publication number: CN215824840U
Application number: CN202120668491.2U
Authority: CN
Inventors: 黄汇栋
Original assignee: Ningbo Chengyu Machinery Co ltd
Current assignee: Ningbo Chengyu Machinery Co ltd
Priority date: 2021-04-01
Filing date: 2021-04-01
Publication date: 2022-02-15
Anticipated expiration: 2031-04-01

Abstract

The utility model relates to a quick positioning fixture for machining equipment, which comprises a bottom plate, a positioning rod and a positioning rod, wherein the bottom plate is provided with a positioning hole; the bottom plate bottom surface middle section transversely installs two-way cylinder, the pneumatic arm of two-way cylinder both sides passes through synchronous voussoir and spacing subassembly transmission connection, spacing subassembly movable mounting is at dismouting board upper end, the "U" type frame of dismouting board both sides installation is the mirror image and distributes, install the telescopic band on the inboard opening of "U" type frame, evenly distributed has four group's contact roller on the telescopic band. The utility model adopts a flexible extension structure to contact with the end face of a curved workpiece; in the contact process, the arc-shaped end face can be completely coated by the flexible telescopic belt, and the arc-shaped end face is in indirect fixed-point contact with the contact roller in a matching manner, so that the workpiece is prevented from sliding off, and the technical problem of loss caused by hard contact between the arc-shaped workpiece and the metal workpiece is solved.

Description

A quick positioning fixture for machining equipment

Technical Field

The utility model relates to the technical field of machining fixtures, in particular to a quick positioning fixture for machining equipment.

Background

At present, most workpieces of production and processing equipment have arc-shaped end surfaces, and the workpieces need to be fixed in position to complete subsequent work in the later use or processing process. However, the precision requirements of the curved surfaces of most of the workpieces to be machined are high at present, so that the positioning tool for the workpieces needs a targeted fixing structure.

In the production and processing process, a curved surface workpiece is directly and hard contacted with a common metal clamp, so that a dent or a bent forged surface is left on the curved surface workpiece in contact, and the later assembly and the attractiveness of the workpiece are influenced.

Accordingly, the present invention provides a quick positioning jig for positioning a forged surface by flexible contact, which is used in cooperation with the above-described situation.

Disclosure of Invention

In order to solve the problems, the utility model discloses a quick positioning clamp which can be horizontally stretched and matched with an arc-shaped die to complete welding, burr removal and other processing, wherein a flexible telescopic belt is adopted to contact the outer side end face of the arc-shaped die, so that secondary extrusion damage is avoided.

In order to achieve the structural purpose, the utility model provides a rapid positioning clamp for machining equipment, which comprises a bottom plate, a clamping plate and a positioning device, wherein the bottom plate is provided with a positioning hole; the bottom plate bottom surface middle section transversely installs two-way cylinder, the pneumatic arm of two-way cylinder both sides passes through synchronous voussoir and spacing subassembly transmission connection, spacing subassembly movable mounting is at dismouting board upper end, the "U" type frame of dismouting board both sides installation is the mirror image and distributes, install the telescopic band on the inboard opening of "U" type frame, evenly distributed has four group's contact roller on the telescopic band.

Furthermore, the limiting assembly comprises a pushing flange and a supporting plate, the pushing flange is of an arc-shaped structure, the supporting plate is fixedly mounted at the bottom of the pushing flange, and a synchronous wedge block which is installed in a butt joint mode at the bottom of the supporting plate is in transmission connection with pneumatic arms on two sides of the bidirectional cylinder.

Furthermore, a positioning hole is formed in the closed end of the U-shaped frame, and the U-shaped frame is fixedly connected with the bottom plate through a plug bolt arranged in the positioning hole.

Still further, the contact roller includes shell, encapsulation top cap and pivot, pivot and shell clearance fit, the encapsulation top cap is installed at the shell top, four group's trough of belt have been seted up to the shell outer wall, the telescopic band is equipped with in the interpolation of trough of belt, the first end winding of telescopic band is on the wind-up roll, wind-up roll fixed mounting is inboard at "U" type frame opening.

Furthermore, the bottom of the rotating shaft is movably connected with a guide bottom foot, a bearing is placed on the upper end face of the guide bottom foot, and the bearing is sleeved on the outer ring of the rotating shaft.

Furthermore, a guide bottom foot is movably arranged in a groove cavity at the bottom of the expansion groove formed in the top end face of the bottom plate, and the groove edge at the opening of the expansion groove is in rolling contact with the bearing.

Compared with the prior art, the structure adopts the flexible extension structure to be contacted with the end face of the curved workpiece; in the contact process, the arc-shaped end face can be completely coated by the flexible telescopic belt, and the arc-shaped end face is in indirect fixed-point contact with the contact roller in a matching manner, so that the workpiece is prevented from sliding off, and the technical problem of loss caused by hard contact between the arc-shaped workpiece and the metal workpiece is solved.

Drawings

Fig. 1 is a top view of a quick positioning fixture for machining equipment according to the present invention.

Fig. 2 is a schematic structural diagram of a quick positioning fixture limiting assembly for machining equipment according to the present invention.

Fig. 3 is a schematic structural diagram of a quick positioning fixture contact roller for a machining apparatus according to the present invention.

List of reference numerals: 1 is a bottom plate, 2 is a horizontal groove, 3 is a bidirectional cylinder, 4 is a telescopic belt, 5 is a U-shaped frame, 6 is a positioning hole, 7 is a limiting component, 8 is a dismounting plate, and 9 is a contact roller;

7-1 is a pushing flange, 7-2 is a synchronous wedge block, and 7-3 is a supporting plate;

9-1 is a guide foot, 9-2 is a packaging top cover, 9-3 is a bearing, 9-4 is a groove and 9-5 is a shell.

Detailed Description

The present invention will be further illustrated with reference to the accompanying drawings and specific embodiments, which are to be understood as merely illustrative of the utility model and not as limiting the scope of the utility model. It should be noted that the terms "front," "back," "left," "right," "upper" and "lower" used in the following description refer to directions in the drawings, and the terms "inner" and "outer" refer to directions toward and away from, respectively, the geometric center of a particular component.

As shown in fig. 1, 2 and 3, a quick positioning jig for machining equipment according to the present invention includes a base plate; the bottom plate 1 bottom surface middle section transversely installs two-way cylinder 3, the pneumatic arm of 3 both sides of two-way cylinder passes through synchronous voussoir 7-2 and is connected with spacing subassembly 7 transmission, spacing subassembly 7 movable mounting is in 8 upper ends of dismouting board, the "U" type frame 5 of 8 both sides installations of dismouting board is the mirror image and distributes, install telescopic band 4 on the inboard opening of "U" type frame 5, evenly distributed has four group's contact roller 9 on the telescopic band 4. In the utility model, an operator places an arc-shaped workpiece on the bottom supporting plate 7-3 of the limiting assembly 7, the arc-shaped workpiece is pushed to the inner side end face of the arc-shaped workpiece in a limiting mode by matching with the arc-shaped end face on the inner side of the limiting assembly 7, in the process of extending and pushing, the arc-shaped workpiece can be pushed to the outer side in a pushing mode by matching with the telescopic belt 4 on the outer side end portion, the outer side end face of the arc-shaped workpiece is passively pressed to know that the bidirectional cylinder 3 is pushed to the top, and the tensioning degree of the telescopic belt 4 is manually adjusted, so that the double-face positioning pushing process is completed. After the process is completed, an operator can complete a preparation process before further processing and perfect assembly for the arc-shaped workpiece. Meanwhile, the utility model only aims at the fine processing of the arc-shaped workpiece, and does not refer to the early initial processing and the production process needing to be finished by a metal clamp. The U-shaped frame 5 is used as a supporting structure and a limiting structure for forced ejection positioning, so that the workpiece is ensured to complete a flexible extrusion positioning process in a limited space. The contact roller 9 is matched with the telescopic belt 4, so that the contact stability of the telescopic belt 4 and the end face of the arc-shaped workpiece can be improved.

As shown in fig. 1 and 2, the limiting component 7 comprises a pushing flange 7-1 and a supporting plate 7-3, the pushing flange 7-1 is of an arc structure, the supporting plate 7-3 is fixedly installed at the bottom of the pushing flange 7-1, and a synchronous wedge 7-2 installed at the bottom of the supporting plate 7-3 in a butt joint mode is in transmission connection with pneumatic arms on two sides of the bidirectional cylinder 3. The limiting assembly 7 serves as a support and main ejection structure, and in the operation process, an operator places the supporting plate 7-3 at the arc-shaped workpiece end and tightly attaches the supporting plate to the ejection flange 7-1, so that the primary limiting effect is achieved. And the required pushing power source is further in transmission connection with pneumatic arms on two sides of the bidirectional cylinder 3 through the synchronous wedge blocks 7-2.

As shown in fig. 1, a positioning hole 6 is formed in the closed end of the U-shaped frame 5, and the U-shaped frame 5 is fixedly connected with the bottom plate 1 through a plug bolt arranged in the positioning hole 6. The positioning hole 6 can be matched with a bolt to fix the U-shaped frame 5 on the appointed ground cushion of the bottom plate 1, and can be matched with the later-stage tool fixture to be detached or replaced according to the size of a workpiece.

As shown in fig. 1 and 3, the contact roller 9 includes a housing 9-5, a package top cover 9-2 and a rotating shaft, the rotating shaft is in clearance fit with the housing 9-5, the package top cover 9-2 is installed on the top of the housing 9-5, four sets of belt grooves 9-4 are formed in the outer wall of the housing 9-5, an expansion belt 4 is inserted into the belt grooves 9-4, the head and tail ends of the expansion belt 4 are wound on a winding roller 11, and the winding roller 11 is fixedly installed inside an opening of the "U" shaped frame 5. In order to enable the contact roller 9 to have good adhesion performance, the telescopic belt 4 is inserted and taken out along four groups of belt grooves 9-4 from front to back in the equipment; the four groups of contact rollers 9 are uniformly distributed on the outer side of the telescopic belt 4 through the telescopic belt 4 with a ring structure of the telescopic belt 4. Meanwhile, the telescopic belt 4 can avoid the condition that the contact roller 9 is accumulated on one side of the telescopic belt 4 in the process of extending or contracting.

As shown in fig. 3, the bottom of the rotating shaft is movably connected with a guide foot 9-1, a bearing 9-3 is arranged on the upper end face of the guide foot 9-1, the bearing 9-3 is sleeved on the outer ring of the rotating shaft, the guide foot 9-1 is movably arranged in a groove cavity at the bottom of an expansion groove 10 formed in the top end face of the bottom plate 1, and a groove edge at the opening of the expansion groove 10 is in rolling contact with the bearing 9-3. Wherein, the rotating shaft is matched with the guide bottom foot 9-1 to complete directional vertical translation; in the vertical translation process, the bearing 9-3 is in rolling contact with the groove edge at the opening of the expansion groove 10, so that unnecessary loss of the rotating shaft due to friction is avoided. The guide foot 9-1 is movably arranged in the expansion groove 10, and a limited directional displacement process is carried out in the expansion groove 10.

The technical means disclosed in the utility model scheme are not limited to the technical means disclosed in the above embodiments, but also include the technical scheme formed by any combination of the above technical features.

Claims

1. A quick positioning fixture for machining equipment comprises a bottom plate; the method is characterized in that: bottom plate (1) bottom surface middle section transversely installs two-way cylinder (3), the pneumatic arm of two-way cylinder (3) both sides passes through synchronous voussoir (7-2) and is connected with spacing subassembly (7) transmission, spacing subassembly (7) movable mounting is in dismouting board (8) upper end, "U" type frame (5) of dismouting board (8) both sides installation are the mirror image and distribute, install telescopic band (4) on "U" type frame (5) inboard opening, evenly distributed has four group's contact roller (9) on telescopic band (4).

2. The quick positioning fixture for machining equipment as claimed in claim 1, wherein: the limiting assembly (7) comprises a pushing flange (7-1) and a supporting plate (7-3), the pushing flange (7-1) is of an arc-shaped structure, the supporting plate (7-3) is fixedly installed at the bottom of the pushing flange (7-1), and a synchronous wedge block (7-2) installed at the bottom of the supporting plate (7-3) in a butt joint mode is in transmission connection with pneumatic arms on two sides of the bidirectional cylinder (3).

3. The quick positioning fixture for machining equipment as claimed in claim 1, wherein: the closed end part of the U-shaped frame (5) is provided with a positioning hole (6), and the U-shaped frame (5) is fixedly connected with the bottom plate (1) through a plug bolt arranged in the positioning hole (6).

4. The quick positioning fixture for machining equipment as claimed in claim 1, wherein: contact roller (9) include shell (9-5), encapsulation top cap (9-2) and pivot, pivot and shell (9-5) clearance fit, encapsulation top cap (9-2) are installed at shell (9-5) top, four group's trough of belt (9-4) have been seted up to shell (9-5) outer wall, telescopic band (4) have been equipped with in trough of belt (9-4) interpolation, the winding of telescopic band (4) head and end winding is on wind-up roll (11), wind-up roll (11) fixed mounting is inboard at "U" type frame (5) opening.

5. The quick positioning fixture for machining equipment as claimed in claim 4, wherein: the bottom of the rotating shaft is movably connected with a guide footing (9-1), a bearing (9-3) is arranged on the upper end face of the guide footing (9-1), and the bearing (9-3) is sleeved on the outer ring of the rotating shaft.

6. The quick positioning fixture for machining equipment as claimed in claim 1, wherein: guide bottom feet (9-1) are movably mounted in a groove cavity at the bottom of an expansion groove (10) formed in the top end face of the bottom plate (1), and a groove edge at the opening of the expansion groove (10) is in rolling contact with a bearing (9-3).