CN207267167U - A kind of flexible fixture - Google Patents

Abstract

The utility model belongs to the field of machine tool auxiliary equipment, and specifically discloses a flexible clamp, including a support assembly, an upper clamp assembly and a lower clamp assembly, the support assembly includes a column, an upper fixed plate and a lower fixed plate, and an upper fixed plate and a lower fixed plate Installed on the column, the upper fixture assembly and the lower fixture assembly are symmetrically arranged up and down, and are respectively installed on the upper fixing plate and the lower fixing plate; both the upper fixture assembly and the lower fixture assembly include multiple sets of clamping units, and each set of clamping units includes an adjustment base plate 1. A horizontal adjustment mechanism and two clamping mechanisms. The horizontal adjustment mechanism includes a lead screw and a power source. The clamping mechanism includes a roller fixing base plate and a roller. The mobile slide block that is slidably matched with the slide rail, and the rollers are installed on the bottom plate of the roller fixing seat. The utility model is suitable for clamping workpieces with different diameters to be processed, and has the advantages of reliable clamping, convenient operation, strong applicability and the like.

Description

A flexible fixture

technical field

The utility model belongs to the field of machine tool auxiliary equipment, and more specifically relates to a flexible clamp.

Background technique

The fixture is an important process device that fixes the workpiece to be processed during the machining process, ensures the correct position of the workpiece to be processed on the machine tool, and prevents the position change and deformation of the workpiece caused by the cutting force during the machining process.

Most of the fixtures used in the existing automatic assembly equipment can only clamp single-size workpieces, and the cost is high, which makes it necessary to replace different fixtures or even use different equipment when processing different types of workpieces during the processing process, which leads to The processing is cumbersome, inefficient, and the processing cost is high, making it unaffordable for small and medium-sized enterprises.

Utility model content

Aiming at the above deficiencies or improvement needs of the prior art, the utility model provides a flexible fixture, in which through the research and design of the specific structure and specific arrangement of the key components such as the upper fixture component and the lower fixture component, the corresponding can be realized The clamping of various types of workpieces with different diameters to be processed has the advantages of reliable clamping, convenient operation, and strong applicability.

In order to achieve the above purpose, the utility model proposes a flexible clamp, which includes a support assembly, an upper clamp assembly and a lower clamp assembly, wherein:

The support assembly includes a column, an upper fixing plate and a lower fixing plate, the upper fixing plate and the lower fixing plate are installed on the column, and arranged symmetrically up and down; the upper clamp assembly and the lower clamp assembly are arranged symmetrically up and down, and The upper clamp assembly is installed on the upper fixing plate, and the lower clamp assembly is installed on the lower fixing plate;

The upper clamp assembly and the lower clamp assembly have the same structure, and both include multiple sets of clamp units, and each set of clamp units includes an adjustment seat bottom plate, a horizontal adjustment mechanism and two clamping mechanisms, and the horizontal adjustment mechanism is installed on the adjustment On the base plate, it includes a lead screw and a power source connected to the lead screw. The two ends of the lead screw are provided with threads in opposite directions, and a slide rail is also arranged on the base plate of the adjustment base; each of the clamping The mechanism includes a bottom plate of a roller fixing seat and a roller. The bottom plate of the roller fixing seat is provided with a screw drive block that is threadedly matched with the lead screw, and a moving slider that is slidably matched with the slide rail is also arranged on it. Installed on the bottom plate of the roller fixing seat.

As a further preference, the roller is mounted on the bottom plate of the roller fixing seat through a roller supporting seat.

As a further preference, a suspension ring is provided on the upper fixing plate.

As a further preference, there are two slide rails in each clamp unit, and the two slide rails are respectively arranged on both sides of the lead screw and parallel to the lead screw.

As a further preference, the power source is an adjusting hand wheel or a motor.

Generally speaking, compared with the prior art, the above technical solution conceived by the utility model mainly has the following technical advantages:

1. The utility model can achieve effective, stable and reliable clamping for workpieces of different sizes through the coordinated work of various components in the flexible fixture, such as the upper fixture component and the lower fixture component, and then ensure the reliable processing of workpieces of different sizes. The utility model has the advantages of simple structure, simple operation and low cost.

2. The fixture of the utility model drives the rotation of the lead screw by adjusting the hand wheel, and then adjusts the distance between each pair of rollers to realize the clamping of workpieces with different diameters, and effectively positions the workpieces to be processed through multiple sets of rollers. This process is easy to operate, saves cost, and can use the utility model to carry out follow-up research on the processing device.

3. The power source of the utility model can adopt a motor, and a manipulator can be installed on the lower fixing plate, thereby realizing automatic control of the clamping process and improving production efficiency.

Description of drawings

Fig. 1 is a schematic diagram of the overall structure of a flexible clamp provided by an embodiment of the present invention;

Fig. 2 is a schematic structural view of a set of clamp units provided by an embodiment of the present invention.

Figure 3 is a schematic diagram of four sets of rollers clamping the workpiece

In the figure: 1-upper fixing plate, 2-adjusting base plate, 3-hanging ring, 4-power source, 5-lead screw, 6-roller fixing base plate, 7-moving slider, 8-roller, 9-roller support Seat, 10-clamping cover, 11-leading screw transmission block, 12-workpiece to be processed.

Detailed ways

In order to make the purpose, technical solution and advantages of the utility model clearer, the utility model will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the utility model, and are not intended to limit the utility model. In addition, the technical features involved in the various embodiments of the present invention described below can be combined with each other as long as they do not constitute conflicts with each other.

As shown in Figure 1, a flexible clamp provided by the embodiment of the present invention includes a support assembly, an upper clamp assembly and a lower clamp assembly, wherein the support assembly is used to install and support the upper clamp assembly and the lower clamp assembly, and the upper clamp assembly Cooperate with the lower fixture assembly to realize the clamping of the workpiece, which is convenient for the subsequent processing of the workpiece.

Specifically, as shown in FIG. 1 , the supporting assembly includes a column, an upper fixing plate 1 and a lower fixing plate, and the upper fixing plate and the lower fixing plate are installed on the column and arranged symmetrically up and down. Preferably, there are two uprights, the two uprights are arranged vertically, and the upper fixing plate and the lower fixing plate are horizontally arranged between the two uprights.

Further, the upper clamp assembly and the lower clamp assembly are symmetrically arranged up and down, and the upper clamp assembly is installed on the upper fixing plate, and the lower clamp assembly is installed on the lower fixing plate, and the upper clamp assembly and the lower clamp assembly are opposite to each other. Specifically, the upper clamp assembly and the lower clamp assembly have the same structure, and both include multiple sets of clamp units. Preferably, the upper clamp assembly includes two sets of clamp units, and the lower clamp assembly also includes two sets of clamp units. Specifically, each set of clamp units includes an adjustment base plate 2, a horizontal adjustment mechanism and two clamping mechanisms. The horizontal adjustment mechanism includes a lead screw 5 and a power source 4 connected to the lead screw 5. The lead screw 5 passes through the lead screw seat. Installed on the bottom plate 2 of the adjustment seat, the two ends of the lead screw 5 are provided with threads with opposite rotations, which are respectively left-handed and right-handed, and the middle part is the optical axis. The bottom plate 2 of the adjustment seat is also provided with slide rails, preferably two slides The two slide rails are set on both sides of the lead screw and parallel to the lead screw; the two clamping mechanisms are respectively connected to the threads at both ends of the lead screw, for example, the screw drive block in a clamping mechanism is connected to the left end of the lead screw. The screw thread realizes threaded connection, and the screw drive block in the other clamping mechanism realizes threaded connection with the screw thread at the right end of the leading screw. Specifically, each clamping mechanism includes a roller holder base plate 6 and a roller 8, and the roller holder base plate 6 There is a lead screw transmission block 11 threaded with the lead screw 5, and a mobile slider 7 that slides with the slide rail. The roller 8 is installed on the bottom plate 6 of the roller fixing seat, specifically through the roller support seat 9. On the bottom plate 6 of the roller fixing seat, the roller 8 is installed on the roller supporting seat through the clamping plate 10 . When two slide rails are arranged in each group of clamping units, two moving sliders are arranged on the roller fixing seat base plate 6 of a single clamping mechanism, and the two moving sliders correspond to slidingly fit with the two slide rails respectively. A number of threaded holes are provided on the slide rail for connecting with the bottom plate of the adjustment seat.

Specifically, the upper clamp assembly is installed on the lower surface of the upper fixing plate through its adjustment base plate, and the lower clamp assembly is installed on the upper surface of the lower fixing plate through its adjustment base plate, and the rollers in the upper clamp assembly and the lower clamp assembly are opposite to each other. , the clamping of the workpiece is realized through the mutual cooperation of multiple sets of clamp units in the upper clamp assembly and the lower clamp assembly.

In order to realize the overall movement of the fixture, a lifting ring 3 is arranged on the upper fixing plate. During use, the fixture is hoisted to the processing table through the lifting ring by the lifting device, and then the fixture is connected with the machine tool processing table through the lower fixing plate below. Preferably, the power source is an adjusting hand wheel or a motor.

As shown in Figure 3, when in use, since the two ends of the lead screw are distributed with threads with opposite directions of rotation, the rotation of the adjusting hand wheel drives the lead screw to rotate, and the two lead screw transmission blocks on the lead screw produce relative motion to adjust the distance between each pair of rollers. The purpose of the spacing between them, and then adjust the circumferential installation radius of the workpiece 12 to be processed, so as to achieve the effect of adapting various types of workpieces with different diameters to be processed.

Those skilled in the art can easily understand that the above descriptions are only preferred embodiments of the present utility model, and are not intended to limit the present utility model. Any modifications, equivalent replacements and modifications made within the spirit and principles of the utility model Improvements and the like should all be included within the protection scope of the present utility model.

Claims (5)

1. A kind of 1. flexible fixture, it is characterised in that including support component, upper fixture component and lower clamp assembly, wherein：

   The support component includes column, upper mounted plate and bottom plate, and fixed plate and bottom plate are installed on described On column, and arrangement symmetrical above and below；The upper fixture component and lower clamp assembly arrangement symmetrical above and below, and the upper fixture group Part is installed on fixed plate, which is installed on the bottom plate；

   The upper fixture component is identical with the structure of lower clamp assembly, is wrapped including multigroup fixture unit, every group of fixture unit Adjusting seat bottom plate (2), level(l)ing mechanism and two clamp systems are included, the level(l)ing mechanism is installed on the adjusting seat bottom On plate (2), it includes leading screw (5) and the power source (4) being connected with leading screw (5), and the both ends of the leading screw (5) are equipped with rotation direction phase Anti- screw thread, is additionally provided with slide on the adjusting seat bottom plate (2)；Two clamp systems respectively with the leading screw (5) Both ends thread fitting, each clamp system include roller fixing base bottom plate (6) and roller (8), the roller fixing base bottom plate (6) the lead screw transmission block (11) with leading screw (5) thread fitting is equipped with, is additionally provided with the shifting being slidably matched with the slide thereon Movable slider (7), the roller (8) are installed on the roller fixing base bottom plate (6).
2. 2. a kind of flexible fixture as claimed in claim 1, it is characterised in that the roller (8) is pacified by roller supporting seat (9) On the roller fixing base bottom plate (6).
3. 3. a kind of flexible fixture as claimed in claim 1, it is characterised in that hanging ring (3) is provided with fixed plate.
4. 4. a kind of flexible fixture as claimed in claim 1, it is characterised in that the slide in every group of fixture unit is provided with two Bar, two slides are divided into the both sides of leading screw, and parallel with leading screw.
5. 5. a kind of flexible fixture as claimed in claim 1, it is characterised in that the power source is adjusting handle or motor.