CN211966754U

CN211966754U - Precise hole distance machining clamp for two taper holes of numerically controlled lathe

Info

Publication number: CN211966754U
Application number: CN201922406208.4U
Authority: CN
Inventors: 秦国军; 陈蓉; 梁超; 沈焱; 王铎霖; 王斌
Original assignee: Tianzhong Metal Processing Shanghai Co ltd
Current assignee: Tianzhong Metal Processing Shanghai Co ltd
Priority date: 2019-12-27
Filing date: 2019-12-27
Publication date: 2020-11-20
Anticipated expiration: 2029-12-27

Abstract

The utility model relates to a two taper hole accurate pitch-row processing anchor clamps for numerical control lathe, including the anchor clamps body that can be connected with three-jaw chuck on the numerical control lathe and can dismantle the gusset plate of the work piece that the fixed mounting is waited to process, be equipped with two sets of screw thread end holes that can dismantle the connection with the anchor clamps body on the gusset plate, and through with the connecting screw of location screw matching with the gusset plate with anchor clamps body fixed connection; two groups of positioning screw holes on the connecting plate are respectively fixed with the clamp body, so that the numerical control lathe can bore two taper holes on a workpiece. Compared with the prior art, the utility model discloses beat the table when only needing the clamping, no longer dismantle in the processing, the uniformity is good, and two hole pitch-row are guaranteed through the precision that two end articles of frock, and the product pitch-row can keep higher precision and stability good.

Description

Precise hole distance machining clamp for two taper holes of numerically controlled lathe

Technical Field

The utility model belongs to the technical field of numerical control processing equipment, a two accurate pitch-row of taper holes add clamping apparatus for numerical control lathe is related to.

Background

At present, for parts with higher requirements on the hole distance between two holes and the roundness of the two holes, how to ensure the roundness of the holes and simultaneously ensure the stability of the hole distance between the two holes is a difficult problem facing the industry all the time. The first method needs manual meter making and alignment, has extremely low efficiency and unstable quality, and has higher requirement on skill of workers, so that the processing precision is difficult to ensure. The second method is to use a forming cutter in a machining center for machining, and is influenced by the precision of the forming cutter, the size of a product is difficult to adjust, vibration grains are easy to generate on the surface of the product, the feed amount is very small, and the economy is very poor. The five-axis machining center has the defects of high labor cost, low efficiency, extremely high cost and inconvenience for mass production. The present invention has been made in view of the above problems, and it is an object of the present invention to provide a liquid crystal display device.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a two accurate pitch-row of taper holes add clamping apparatus for numerical control lathe in order to overcome the defect that above-mentioned prior art exists.

The purpose of the utility model can be realized through the following technical scheme:

a two-taper-hole precise pitch machining clamp for a numerical control lathe comprises a clamp body and a connecting plate, wherein the clamp body can be connected with a three-jaw chuck on the numerical control lathe, the connecting plate is detachably and fixedly provided with a workpiece to be machined, two groups of positioning screw holes which can be detachably connected with the clamp body are formed in the connecting plate, and the connecting plate is fixedly connected with the clamp body through connecting screws matched with the positioning screw holes; two groups of positioning screw holes on the connecting plate are respectively fixed with the clamp body, so that the numerical control lathe can bore two taper holes on a workpiece.

Furthermore, the distance between the center positions of the two groups of positioning screw holes is equal to the distance between the centers of two conical holes to be processed on the workpiece.

Furthermore, each group of positioning screw holes is provided with four positioning screw holes, and the four positioning screw holes form four vertexes of a rectangle on the connecting plate.

Furthermore, the connecting plate is also provided with a locking screw hole, a first butt-joint screw hole corresponding to the locking screw hole is further processed on the workpiece, and the workpiece is fixedly connected with the connecting plate by the locking screw thread penetrating through the first butt-joint screw hole and the locking screw hole.

Furthermore, four locking screw holes are correspondingly arranged with the first butt screw holes.

Furthermore, the locking screw holes are surrounded by two groups of positioning screw holes.

Furthermore, the fixture body is step-shaped, the smaller end of the fixture body is a cylinder connected with the three-jaw chuck of the numerical control lathe, and the larger end of the fixture body is square and is detachably connected with the connecting plate.

Furthermore, a second butt joint screw hole correspondingly matched with the positioning screw hole is processed at the edge position of the larger end of the fixture body, and the connecting screw sequentially penetrates through the positioning screw hole and the second butt joint screw hole in a threaded manner, so that the connecting plate is fixedly connected with the fixture body.

Compared with the prior art, the utility model has the advantages of it is following:

(1) the tool has simple structure and low manufacturing cost.

(2) The tool is easy to install, is locked and loosened by screwing bolts or screws and the like, is convenient to operate and is easy to disassemble.

(3) The quality is stable and reliable: the precision of the product is ensured through the precision of the positioning screw hole of the tool, the size consistency of the product is good, and the quality is stable.

(4) Good economical efficiency: the high-efficiency lathe and the low-cost boring cutter are adopted for processing, and the economical efficiency is excellent.

(5) The service life is long: all parts of the tool are made of die steel and are subjected to heat treatment, so that the wear resistance and the strength of the tool are greatly improved, and meanwhile, the main working surface is ground to obtain better surface roughness, so that the service life of the tool is greatly prolonged.

(6) The product has strong universality and is suitable for popularization.

Drawings

FIG. 1 is an exploded view of a machining fixture;

FIG. 2 is a schematic view of the machining fixture assembled to a numerically controlled lathe;

the notation in the figure is:

1-workpiece, 2-connecting screw, 3-connecting plate, 4-locking screw, 5-fixture body, 6-three-jaw chuck, 7-first butt screw hole, 8-locking screw hole, 9-second butt screw hole and 10-positioning screw hole.

Detailed Description

The present invention will be described in detail below with reference to the accompanying drawings and specific embodiments. The embodiment is implemented on the premise of the technical solution of the present invention, and a detailed implementation manner and a specific operation process are given, but the scope of the present invention is not limited to the following embodiments.

In the following embodiments, unless otherwise specified, functional components or structures are all conventional component structures in the art for achieving corresponding functions.

Example 1:

a two-taper-hole precise pitch machining clamp for a numerical control lathe is structurally shown in figure 1 and comprises a clamp body 5 and a connecting plate 3, wherein the clamp body 5 can be connected with a three-jaw chuck 6 on the numerical control lathe, the connecting plate 3 is detachably and fixedly provided with a workpiece 1 to be machined, two groups of positioning screw holes which can be detachably connected with the clamp body 5 are formed in the connecting plate 3, and the connecting plate 3 is fixedly connected with the clamp body 5 through connecting screws 2 matched with the positioning screw holes 10; two groups of positioning screw holes 10 on the connecting plate 3 are respectively fixed with the fixture body 5, so that the numerical control lathe can bore two taper holes on the workpiece 1. The distance between the center positions of the two groups of positioning screw holes 10 is equal to the distance between the centers of two conical holes to be processed on the workpiece 1.

Referring to fig. 1 again, four positioning screw holes 10 are provided for each set, which form four vertices of a rectangle on the connecting plate 3.

Referring to fig. 1 again, the coupling plate 3 is further provided with a locking screw hole 8, the workpiece 1 is further provided with a first butt screw hole 7 corresponding to the locking screw hole 8, and the workpiece 1 and the coupling plate 3 are fixedly connected by the locking screw 4 penetrating through the first butt screw hole 7 and the locking screw hole 8. Four locking screw holes 8 are arranged corresponding to the first butt screw holes 7. The locking screw holes 8 are surrounded by two sets of positioning screw holes 10.

Referring to fig. 1 again, the fixture body 5 is step-shaped, the smaller end of the fixture body is a cylinder connected with the three-jaw chuck 6 of the numerically controlled lathe, and the larger end of the fixture body is square and detachably connected with the connecting plate 3. A second butt joint screw hole 9 correspondingly matched with the positioning screw hole is processed at the edge position of the larger end of the fixture body 5, and the connecting screw 2 sequentially penetrates through the positioning screw hole and the second butt joint screw hole 9 in a threaded manner, so that the connecting plate 3 is fixedly connected with the fixture body 5.

The working process of the machining clamp in the embodiment is as follows:

referring to fig. 2, the whole machining fixture is clamped and fixed on the numerically controlled lathe through the three-jaw chuck 6, at this time, the workpiece 1 is fixed on one group of positioning screw holes 10 of the connecting plate 3 through the connecting screws 2, the numerically controlled lathe is started to bore an inner hole in the workpiece 1, and machining of a taper hole in the workpiece 1 is completed. Then, the workpiece 1 is detached from the connecting plate 3 and then assembled on another group of positioning screw holes 10, and as the distance between the two groups of positioning screw holes 10 is equal to the distance between two taper holes to be processed, another hole can be directly processed on the workpiece 1 without adjusting a numerical control lathe.

In the whole machining process, the clamp body 5 is connected with a three-jaw chuck 6 of the numerical control lathe, and after clamping is completed, the clamp body 5 is not required to be assembled and disassembled every time, and only the calibration, the surface printing and the clamping are required to be performed every time when machining is performed in batches. Through the hole (be second butt joint screw 9) location that ends of the anchor clamps body 5, connecting screw 2 transmits the power of the anchor clamps body 5 to gusset plate 3, gusset plate 3 rethread locking screw 4 is fixed with work piece 1 and is transmitted power, thereby realize hole lathe work, all adopt the tang location between anchor clamps body 5 and gusset plate 3 and work piece 1 because of the anchor clamps body, so positioning accuracy is high, adopt the screw hookup loading and unloading simultaneously, make the product clamping reliable, it is easy to dismantle, thereby guarantee to add the hole that higher intensity rigidity ensured to reach higher quality precision man-hour simultaneously.

The embodiments described above are intended to facilitate the understanding and use of the invention by those skilled in the art. It will be readily apparent to those skilled in the art that various modifications to these embodiments may be made, and the generic principles described herein may be applied to other embodiments without the use of the inventive faculty. Therefore, the present invention is not limited to the above embodiments, and those skilled in the art should make improvements and modifications within the scope of the present invention according to the disclosure of the present invention.

Claims

1. A precise hole distance machining clamp for two taper holes of a numerical control lathe is characterized by comprising a clamp body and a connecting plate, wherein the clamp body can be connected with a three-jaw chuck on the numerical control lathe, the connecting plate is detachably and fixedly provided with a workpiece to be machined, two groups of positioning screw holes which can be detachably connected with the clamp body are formed in the connecting plate, and the connecting plate is fixedly connected with the clamp body through connecting screws matched with the positioning screw holes; two groups of positioning screw holes on the connecting plate are respectively fixed with the clamp body, so that the numerical control lathe can bore two taper holes on a workpiece.

2. The jig for precise pitch machining of two tapered holes for a numerically controlled lathe according to claim 1, wherein the distance between the center positions of the two sets of positioning screw holes is equal to the distance between the centers of two tapered holes to be machined in the workpiece.

3. The jig for precision pitch machining of two tapered holes for a numerically controlled lathe according to claim 1, wherein there are four positioning screw holes per set, which form four vertices of a rectangle on the coupling plate.

4. The clamp for machining the precise distance between two conical holes of the numerical control lathe according to claim 1, wherein the connecting plate is further provided with a locking screw hole, the workpiece is further provided with a first butt screw hole corresponding to the locking screw hole, and the workpiece is fixedly connected with the connecting plate by the locking screw penetrating through the first butt screw hole and the locking screw hole.

5. The clamp for precise pitch machining of two tapered holes of a numerically controlled lathe according to claim 4, wherein four locking screw holes are provided corresponding to the first butt screw holes.

6. The jig for precision pitch machining of two tapered holes for a numerically controlled lathe according to claim 4, wherein said locking screw holes are surrounded by two sets of positioning screw holes.

7. The clamp for precise pitch machining of the two taper holes of the numerically controlled lathe according to claim 1, wherein the clamp body is step-shaped, the smaller end of the clamp body is a cylinder connected with a three-jaw chuck of the numerically controlled lathe, and the larger end of the clamp body is square and detachably connected with the connecting plate.

8. The clamp for precise pitch machining of two taper holes for the numerically controlled lathe according to claim 7, wherein a second butt screw hole correspondingly matched with the positioning screw hole is machined at the edge position of the larger end of the clamp body, and the connecting plate is fixedly connected with the clamp body by sequentially threading the connecting screw through the positioning screw hole and the second butt screw hole.