Jacking workpiece clamp

Abstract

The utility model discloses a top workpiece clamp. The top workpiece clamp comprises a clamp body which is a cylinder. A plurality of integrated holes are formed in the center of the top end of the clamp main body, a step form with sequentially increasing hole pitches is formed among the holes, the last-stage hole is a round hole, and other holes are screw holes. According to the utility model, a proper fixing position can be easily found on the fixture, so that accurate processing operation is realized, and the processing is convenient and fast.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of machining, especially relates to a top workpiece clamp. BACKGROUND

[0002] In the field of machining, the traditional top clamp has been plagued by many problems for a long time. The traditional top clamp needs to consume a lot of time in clamping workpieces, which seriously slows down the whole machining progress. Moreover, in the process of frequent use, the three-jaw chuck may be worn out. Such wear can directly cause the deviation of the concentricity of the workpiece during machining, thereby affecting the machining precision, so that the rate of defective products in the final machining is high, which has a great negative impact on the machining precision. In addition, the low working efficiency of the traditional top workpiece clamp has become a major obstacle to the production progress, cannot meet the production plan and order demand, and cannot adapt to the modern rapid production progress requirement, which has become a bottleneck hindering the development of production.

[0003] The traditional top clamp has the problems of long clamping time, deviation of concentricity caused by wear of the three-jaw chuck, and low machining efficiency that cannot adapt to the production progress. CONTENT OF THE UTILITY MODEL

[0004] In order to overcome the deficiencies of the prior art method, the purpose of the utility model is to provide a top workpiece clamp, which can easily find a suitable fixing position on the clamp, so as to realize accurate machining operation and convenient and fast machining.

[0005] To achieve the above purpose, the utility model adopts the technical scheme of a top workpiece clamp, which comprises:

[0006] The clamp body is a cylindrical body.

[0007] A plurality of holes are formed integrally at the center of the top end of the clamp body, and the holes are formed in a stepped form with increasing hole distance in sequence, the last hole is a circular hole, and the other holes are threaded holes.

[0008] Further, the clamp body is a steel structure cylindrical body.

[0009] Further, the plurality of holes integrally include threaded holes with a pitch of M12, threaded holes with a pitch of M16, and circular holes with a diameter of φ20, and the holes are formed in a stepped form with increasing hole distance in sequence.

[0010] Further, the size of the inner hole between adjacent steps is between 0.05mm and 0.1mm.

[0011] Further, the clamp body top end is provided with a hole diameter mark near the integral hole.

[0012] The beneficial effects of the technical scheme are:

[0013] The utility model shows outstanding in improving machining precision. The utility model can ensure that workpiece does not have any displacement and deformation in the machining process. Through stable and reliable clamping and accurate positioning, the machining size is more accurate, and the surface quality is more excellent. Whether it is precision part machining with extremely high precision requirement or external grinding with strict surface quality requirement, the fixture can play an excellent role.

[0014] The utility model has very strong universality. The utility model can be widely used in machining workpieces of different models and different sizes. Because the fixture is provided with holes of different diameters and corresponding threads, it can flexibly adapt to workpieces of various specifications. This advantage not only greatly reduces the demand of enterprises for different fixtures and significantly reduces production cost, but also greatly improves the flexibility and adaptability of production.

[0015] The utility model is also a highlight of the fixture in terms of convenient operation. The utility model simplifies the clamping device, and the operator can easily and quickly complete the operation of tightening and loosening. Compared with the complicated operation steps of the traditional fixture, the design of the fixture is more humanized, so that the operator can efficiently complete the fixing and dismounting of the workpiece in a short time, thereby greatly saving the machining time.

[0016] The utility model also has remarkable effect in protecting the chuck. The utility model can effectively reduce the damage of the chuck caused by repeated loosening. In the machining process, as an important clamping device, the chuck will be affected in precision by frequent loosening for a long time. The use of the fixture can greatly reduce the loosening frequency of the chuck, reduce the degree of wear of the chuck caused by the grinding wheel dust, and thus prolong the service life of the chuck, thereby reducing the maintenance cost for enterprises. BRIEF DESCRIPTION OF DRAWINGS

[0017] Fig. 1 is a structure schematic view of a workpiece fixture of the utility model;

[0018] Fig. 2 is a sectional view of a workpiece fixture of the utility model;

[0019] Among them, 1 is a fixture main body, 2 is a plurality of holes in one piece, 21 is a threaded hole, 22 is a threaded hole, and 23 is a round hole. DETAILED DESCRIPTION

[0020] In order to make the purpose, technical scheme and advantages of the utility model more clear, the utility model will be further described below with reference to the drawings.

[0021] In this embodiment, referring to Figs. 1-2 , a workpiece fixture includes:

[0022] The clamp body 1 is a cylinder;

[0023] A plurality of holes 2 are formed integrally in the center of the top end of the clamp body 1, and the holes are arranged in a stepped form with the hole distance increasing gradually, and the last hole is a circular hole, and the other holes are threaded holes.

[0024] As an optimization of the above embodiment, the clamp body 1 is a steel structure cylinder. The steel structure cylinder provides a solid and reliable guarantee for the stable operation of the clamp, ensures that the clamp can maintain a stable working state under various working conditions, and effectively improves the reliability and durability of the overall performance of the clamp.

[0025] As an optimization of the above embodiment, the plurality of holes 2 integrally include a threaded hole 21 with a pitch of M12, a threaded hole 22 with a pitch of M16, and a circular hole 23 with a diameter of φ20, and the holes are arranged in a stepped form with the hole distance increasing gradually. This design can meet the processing needs of different types of workpieces, so that small workpieces and large workpieces can obtain appropriate fixing positions on the clamp to achieve precise processing.

[0026] As an optimization of the above embodiment, the size of the inner hole between adjacent steps is between 0.05mm and 0.1mm. To facilitate the installation and positioning of the workpiece and ensure product accuracy.

[0027] As an optimization of the above embodiment, the clamp body 1 is provided with a hole diameter mark near the integral hole at the top end. The mark is made of a material that is wear-resistant and does not affect the performance of the clamp, and is set by etching, inlaying or printing.

[0028] In order to better understand the utility model, the working principle of the utility model is described once as follows:

[0029] Three-jaw chuck and clamp installation and cooperation

[0030] 1. Linkage of three-jaw chuck and clamp: when installing, the clamp is tightly clamped on the three-jaw chuck by the three-jaw chuck, to ensure that the two are tightly and reliably connected.

[0031] 2. Cooperation of circular hole and workpiece: the last step circular hole is mainly used for positioning the workpiece, and the circular hole provides a precise radial positioning reference for the workpiece, which can ensure precise positioning during machining and effectively reduce the jumping error.

[0032] 3. Role of threaded hole: in actual operation, the tight connection of the threaded hole and the workpiece reduces the vibration and displacement generated during machining, further improving the machining accuracy.

[0033] 4. The effect of stepped hole distance: the holes form a stepped form between each hole, and the hole distance increases in turn, which greatly facilitates the machining of workpieces of different sizes. Different positions of holes can be selected flexibly according to specific requirements, and the versatility of the clamp is significantly enhanced.

[0034] 5. Protect the three-jaw chuck: by cooperating with the screw hole and the workpiece to process the workpiece, the machining operation of directly clamping the workpiece on and off the three-jaw chuck is avoided, which effectively prevents the possible damage machining operation. In addition, the stable connection mode reduces the relative movement and wear between the workpiece and the chuck, thereby prolonging the service life of the three-jaw chuck.

[0035] The utility model discloses first have qualitative promotion in the processing precision aspect, effectively avoid the concentricity deviation problem of the chuck wear. Secondly, convenient operation is different from the complex and complicated operation of the traditional top clamp, and the novel top clamp designs simple and easy to understand operation process, and the operator only needs simple several steps to complete clamping operation such as, reduces the operation difficulty and labor intensity, and significantly improves production efficiency. Finally, it also plays a good protective effect to the chuck, can avoid causing damage to the chuck, prolongs the service life of the chuck, and reduces the equipment maintenance cost.

[0036] The above shows and describes the basic principle, main features and advantages of the utility model. The skilled person in the art should understand that the utility model is not limited by the above examples, and the above examples and descriptions in the specification are only to illustrate the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model can also have various changes and improvements, and these changes and improvements all fall within the scope of the claimed utility model. The scope of protection of the utility model is defined by the appended claims and their equivalents.

Claims

1. A top workpiece clamp characterized by, Comprise: The clamp body (1) adopts a cylinder; A plurality of holes (2) are formed in the center of the top end of the clamp body (1), and the holes are formed in a stepped form with increasing hole distance, and the last hole is a round hole, and the other holes are screw holes.

2. A top workpiece clamp according to claim 1, wherein The clamp body (1) adopts a steel structure cylinder.

3. The top workpiece clamp of claim 1, wherein, The plurality of holes (2) sequentially include a screw hole (21) with a pitch of M12, a screw hole (22) with a pitch of M16, and a round hole (23) with a diameter of φ20, and the holes are formed in a stepped form with increasing hole distance.

4. The top workpiece clamp of claim 1, wherein, The size of the inner hole between adjacent steps is between 0.05mm and 0.1mm.

5. The top workpiece clamp of claim 1, wherein, The top end of the clamp body (1) is provided with a hole diameter mark near the integrated hole.

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