CN205834753U - One positions multifunctional efficient fixture completely - Google Patents

Abstract

This utility model relates to a kind of Multifunction combined high-efficiency device positioned completely in a kind of special fixture, especially machine tooling, belongs to frock clamp field, including clamp body, clamping device, complete positioner；Time specifically used, block part is inserted locating slot, now the flexible right angle step being provided with to block props up the another side of block part, rotate eccentric to protruding circular arc effect, make on the right of clamping plate, to raise the left side to fall, so that the flexible block that supports under each pawl compresses, in compaction process, the flexible common effect supporting block, ball and back-moving spring adjusts automatically, it is ensured that with the Milling Process plane positioning of block part, accomplish that adding block part in man-hour is in complete positioning states.Quickly, the installation workpiece time is greatly shortened, and effectively ensures quality, reduces cost, significantly improves production efficiency for this utility model location, fixing workpiece.

Description

A Fully Positioned Multifunctional High Efficiency Fixture

technical field

The utility model relates to a special fixture, in particular to a fully positioned multifunctional combined high-efficiency device in machine tool processing, which belongs to the field of tooling fixtures.

Background technique

When milling machines or machining centers process batches of block parts, in order to improve efficiency, it is often necessary to process parts in multiple clamps, which will cause the following disadvantages: 1. Because the size of block parts has tolerances, the size of block parts is actually inconsistent. It will cause dimensional errors after processing; 2. Using the method of clamping multiple parts at one time will not be able to clamp and fix all the parts due to inconsistent sizes, making the processing impossible. Even if the processing is barely completed, the processing size of the parts will be inconsistent, resulting in inconsistency. It meets the requirements of the drawing and even becomes a waste product.

Utility model content

The purpose of this utility model is to solve the above-mentioned problems in the prior art, and provide a completely positioned multifunctional high-efficiency fixture that uses the processing surface as a reference surface to ensure that each part is clamped without loosening and that the processing dimensions are consistent.

The purpose of this utility model is achieved in this way, a fully positioned multifunctional high-efficiency clamp is characterized in that it includes a clamp body, a clamping device, and a complete positioning device;

The clamp body is in the shape of a rectangular plate, the left end of the clamp body is provided with a positioning groove, the right side of the positioning groove of the positioning groove is provided with threaded holes in the length direction, and a support rod is installed in the threaded hole, and a positioning step is provided under the clamp body;

The clamping device includes a clamping plate, a support rod, and an eccentric hand wheel; the clamping plate is a long claw-shaped pressing block, and each clamping plate claw is provided with a through hole at the front end, and the right lower end of the clamping plate is provided with a convex The eccentric hand wheel and the clamping body are hinged through the shaft pin matching. The outer circle of the eccentric hand wheel contacts the raised arc of the clamping plate. There is a groove in the middle of the clamping plate that is connected with the support rod. Sliding fit at the milled flat on the upper end, the support rod is a cylindrical bolt, the upper end is flat milled, the lower end is threaded, the support rod is covered with a support spring, the milled flat at the upper end of the support rod is hinged with the groove with a pin, and the lower end is screwed and connected to the threaded hole Inside, the supporting spring is fixed between the clamping plate and the clamping body;

The complete positioning device is installed under the front end of each clamping claw of the clamping device. The complete positioning device includes a telescopic block, a right-angle step is arranged under the telescopic block, and a pointed protrusion is arranged on the right-angle step. The telescopic There are threaded countersunk holes and spherical pits on the block, the threaded countersinks are placed above the right-angled steps, and the spherical pits are placed at the upper right of the right-angled steps; when installing, the bolts pass through the through holes at the front of the clamping plate claws and the telescopic block. The threaded counterbore is screwed and connected; there is a return spring between the clamping plate and the telescopic block. The return spring is sleeved on the bolt and fixed between the clamping plate and the telescopic block through the bolt. A ball is placed between the clamping plates, and the diameter of the ball matches the diameter of the spherical pit.

The left side of the positioning groove is higher than the right side.

There are pin holes on both sides of the right side of the positioning groove on the clamp body, and the eccentric hand wheel and the pin holes of the clamp body are hinged through the pivot pin matching, that is, the eccentric hand wheel is hinged to the pin hole of the clamp body through the pivot pin.

The utility model has a reasonable and simple structure, is easy to manufacture, and is convenient to use. Through the utility model, when in use, the fixture uses the milled plane as a positioning reference, so that the processing size is guaranteed. When there is an error in the length of the block parts, the positioning The telescopic block in the groove is automatically adjusted to ensure that it is positioned on the milling plane of the block part. The utility model uses the side of the block parts that needs to be processed as a tooling fixture designed as a positioning reference, which can make the processing size consistent and effectively solve the defects caused by the shortcomings in the existing processing; The workpiece time is greatly shortened, the quality is effectively guaranteed, the cost is reduced, and the production efficiency is doubled.

Description of drawings

Fig. 1 is the utility model top view schematic diagram

Fig. 2 is the utility model right view schematic diagram

Figure 3 is a schematic diagram of the utility model clamping plate

Figure 4 is a schematic diagram of the telescopic block of the utility model

Fig. 5 is a schematic diagram of the telescopic block clamping parts with larger steps;

In the figure: 1 eccentric hand wheel, 2 pin hole, 3 clamping body, 4 clamping device, 5 raised arc, 6 right side of positioning groove, 7 complete positioning device, 8 block parts, 9 spherical pit, 10 right angle steps , 11 through holes, 12 telescopic blocks, 13 clamping plates, 14 positioning grooves, 15 support rods, 16 threaded holes, 17 installation positioning steps, 18 thread counterbores, 19 support springs, 20 return springs, 21 grooves.

detailed description

Below in conjunction with accompanying drawing and description of drawings, the utility model will be further described.

As shown in Figure 1 and Figure 2, a complete positioning multifunctional high-efficiency fixture includes a clamp body 3, a clamping device 4, and a complete positioning device 7.

Described clip body 3 is rectangular plate shape, and its length is suitable with block parts 8 lengths (can be multiple), and clip body 3 left end is provided with positioning groove 14, and the left side of positioning groove 14 is higher than the right side, and the positioning groove right side of positioning groove 14 6. Threaded holes 16 are provided on both sides of the length direction, and support bolts 15 are installed in the threaded holes 16. Pin holes 2 are provided on both sides of the right side of the positioning groove 14, and a positioning step 17 is provided below the clamp body 3;

The clamping device 4 includes a clamping plate 13, a support rod 15, and an eccentric hand wheel 1; the clamping plate 13 is a long claw-shaped pressing block, and each claw front end is provided with a through hole 11, and the gap between each claw is The distance is equivalent to the length of the block parts 8, and the width of each claw is equivalent to that of the block parts 8. A complete positioning device 7 is installed under each claw of the long claw-shaped pressing block, and a raised arc 5 is provided at the lower right side of the clamping plate 13. , the eccentric hand wheel 1 and the pin hole 2 on the clamp body 3 are hinged through the pivot pin matching, so that the outer circle of the eccentric hand wheel 1 contacts the raised arc 5 of the clamping plate 13, and the middle position of the clamping plate 13 is provided with a supporting rod 15 is connected to the groove 21, the groove 21 is slidingly matched with the milling and flattening of the upper end of the support rod 15, the support rod 15 is a cylindrical bolt, the upper end is milled and flattened, and the lower end is a thread, the lower end of the support rod 15 is matched with the support rod 15, and the support rod 15 Support spring 19 is covered with, and support bar 15 upper end milling flat place is hinged with groove 21 with bearing pin, and support bar 15 supports clamping plate 13 at a certain height position, and its height is higher than the height of block part 8.

Described complete positioning device 7 is that each claw front end of clamping plate 13 is equipped with telescopic block 12, as shown in Fig. A threaded counterbore 18 is provided above the step 10, and a spherical pit 9 is provided on the right side. During installation, the bolt passes through the through hole 11 of the clamping plate 13 and is matched with the threaded counterbore 18 of the telescopic block 12 (the bolt is screwed into the threaded counterbore. 18), a return spring 20 is provided between the clamping plate 13 and the telescopic contact block 12, and the return spring 20 is sleeved on the bolt, and the return spring 20 is fixed between the clamping plate 13 and the telescopic contact block 12 by bolts, and the telescopic contact block A ball is placed between the spherical pit 9 of the block 12 and the clamping plate 13, and the diameter of the ball matches the diameter of the spherical pit 9.

The utility model has the advantages of fast workpiece replacement, greatly shortened installation time, accurate positioning, and improved production efficiency.

When in use, the utility model takes the milling plane as the positioning reference, so that the processing size is guaranteed. When there is an error in the length of the block part 8, the telescopic block 12, the ball and the return spring 20 in the complete positioning device 7 will be used together. Automatic adjustment under the action to ensure the positioning of the milling processing plane of the block parts 8, so that the parts are in a complete positioning state during processing, and there will be no looseness.

As shown in Fig. 1 and Fig. 2, during specific use, the block part 3 is inserted into the positioning groove 4. At this time, the right-angled step 10 provided with the telescopic block 12 is against the other side of the block part 3, and the eccentric wheel 1 is rotated against the convex Playing the role of circular arc 5, the right side of the clamping plate 13 is raised and the left side falls, so that the telescopic block 12 under each claw is compressed, and the telescopic block 12, the ball and the return spring 20 work together during the pressing process Automatically adjust to ensure that the milling processing plane of the block part 8 is positioned so that the block part 3 is in a fully positioned state during processing.

As shown in Figure 5, when processing a part with a larger width, the telescopic block with a larger step can be replaced to realize the processing of a part with a larger width.

Claims (3)

1. position a multifunctional efficient fixture completely, it is characterized in that: include clamp body (3), clamping device (4), position completely Device (7)；

Described clamp body (3) is rectangle tabular, and clamp body (3) left end is provided with locating slot (14), the locating slot of locating slot (14) (6) length direction both sides, the right are provided with screwed hole (16), install support bar (15) in screwed hole (16), and clamp body (3) lower section sets There is installation positioning step (17)；

Described clamping device (4) includes clamping plate (13), support bar (15), eccentric handwheel (1)；Clamping plate (13) is strip claw-like Compact heap, each clamping plate (13) pawl front end is equipped with through hole (11), and lower end, clamping plate (13) the right is provided with protruding circular arc (5), Eccentric handwheel (1) is mated hinged with clamp body (3) by pivot pin, the protruding circle of eccentric handwheel (1) cylindrical contact clamping plate (13) Arc (5), is provided with the groove (21) being connected with support bar (15) in the middle of clamping plate (13), groove (21) end mill upper with support bar (15) Flat place is slidably matched, and support bar (15) is cylindrical bolt, and upper end mill is flat, and lower end is screw thread, support bar (15) is cased with support bullet Spring (19), the upper flat place of end mill of support bar (15) and groove (21) hinge, lower end screws and is connected in screwed hole (16), Support spring (19) is fixed between clamping plate (13) and clamp body (3)；

Described complete positioner (7) is installed on below each clamping plate (13) the pawl front end of clamping device (4), positions dress completely Putting (7) and include that the flexible block (12) that supports, flexible block (12) lower section of supporting are provided with right angle step (10), right angle step (10) is arranged above with point Shape is protruding, and the described flexible block (12) that supports is provided with screw-threaded counterbore (18), spherical pit (9), and screw-threaded counterbore (18) is placed in right angle platform Top, rank (10), spherical pit (9) is placed in right angle step (10) upper right side；During installation, bolt is through clamping plate (13) pawl front end Through hole (11) screws with the flexible screw-threaded counterbore (18) supporting block (12) and is connected；Clamping plate (13) and flexible supporting are provided with between block (12) Back-moving spring (20), back-moving spring (20) is placed on bolt, be bolted on clamping plate (13) with flexible support block (12) it Between, put ball between flexible spherical pit (9) and the clamping plate (13) supporting block (12), ball diameter is straight with spherical pit (9) Footpath is mated.

One the most according to claim 1 positions multifunctional efficient fixture completely, it is characterized in that: described locating slot (14) The left side is higher than the right.

One the most according to claim 1 positions multifunctional efficient fixture completely, it is characterized in that: on described clamp body (3) Locating slot on the right of (6) both sides be provided with pin-and-hole (2), eccentric handwheel (1) mates hinge with the pin-and-hole (2) of clamp body (3) by pivot pin Connect.