CN219598727U

CN219598727U - Clamping jig for metal part machining

Info

Publication number: CN219598727U
Application number: CN202320981636.3U
Authority: CN
Inventors: 余俊远; 蔡贺; 顾益; 刘佳; 吴焕权; 秦龙; 唐兵
Original assignee: Jiangsu Kesen Medical Devices Co ltd
Current assignee: Jiangsu Kesen Medical Devices Co ltd
Priority date: 2023-04-27
Filing date: 2023-04-27
Publication date: 2023-08-29
Anticipated expiration: 2033-04-27

Abstract

The utility model discloses a clamping jig for processing metal parts, which is used for clamping tubular parts and comprises the following components: clamping base, install clamping cylinder and clamping sleeve in clamping base, it has a mounting hole to open on the terminal surface of clamping base one end, imbeds in this mounting hole clamping sleeve further includes: the clamping cylinder comprises an external connection part connected with the clamping cylinder and a clamping part with a conical surface on the outer surface, wherein a plurality of strip-shaped through grooves extending along the radial direction are formed in the side wall of the clamping part, a transition part is connected between the external connection part and the clamping part, a plurality of air holes arranged at intervals along the circumferential direction are formed in the outer wall of the transition part, a gas channel is formed in the clamping base, and one end of the gas channel is connected with a gas source while the other end of the gas channel is communicated with the gap area. The utility model not only realizes stable clamping of the tubular parts, but also can avoid damage of chips generated by processing to the parts and increase the yield of products.

Description

Clamping jig for metal part machining

Technical Field

The utility model relates to a clamping jig for machining metal parts, and belongs to the technical field of clamping jigs.

Background

With the continuous development of science and technology, the mechanical manufacturing industry also rapidly develops, and in the mechanical manufacturing process, a tubular part is often required to be processed, especially in the parts of medical instruments, and tubular parts are often produced. The tubular part is a hollow cylindrical shaped part and has a relatively thin wall thickness.

In the prior art, when a tubular part is processed, clamps are often used for clamping two sides of the tubular part, the clamps on the two sides are easy to damage the surface of the tubular part, and scraps generated in processing production are easy to scratch the surface of the tubular part, so that the yield is reduced.

Disclosure of Invention

The utility model aims to provide a clamping jig for metal piece machining, which not only realizes stable clamping of tubular parts, but also can avoid damage of chips generated by machining to the parts and increase the yield of products.

In order to achieve the above purpose, the utility model adopts the following technical scheme: a clamping jig for metal part processing for clamping a tubular part, comprising: clamping base, install clamping cylinder and clamping sleeve in clamping base, it has a mounting hole to open on the terminal surface of clamping base one end, imbeds in this mounting hole clamping sleeve further includes: the external part is connected with the clamping cylinder, the outer surface of the clamping part is outwards opened and is in sliding fit with the inner wall of the mounting hole, and a plurality of strip-shaped through grooves extending along the radial direction are formed in the side wall of the clamping part;

a transition part is connected between the external connection part and the clamping part, a gap area is arranged between the outer surface of the transition part and the inner wall of the mounting hole, a plurality of air holes are formed in the outer wall of the transition part at intervals along the circumferential direction, a gas channel is formed in the clamping base, and one end of the gas channel is connected with a gas source, and the other end of the gas channel can be communicated with the gap area.

The further improved scheme in the technical scheme is as follows:

1. in the above scheme, the inner wall of the clamping part, which is close to one end of the external connection part, is provided with an inner flange, and the end surface of the inner flange, which is away from the clamping cylinder, is used for being in contact with the end surface of one end of the inner pipe part embedded in the clamping part.

2. In the scheme, 4 strip-shaped through grooves are arranged at equal intervals along the circumferential direction.

3. In the scheme, the strip-shaped through groove extends to the transition part and is communicated with the air hole.

4. In the above scheme, the diameter of the clamping part gradually increases in a direction approaching the transition part.

Due to the application of the technical scheme, compared with the prior art, the utility model has the following advantages:

the utility model relates to a clamping jig for metal piece processing, which comprises a clamping assembly comprising: clamping base, install clamping cylinder and clamping sleeve in clamping base, open on the terminal surface of clamping base towards material loading subassembly one end has a mounting hole, and the clamping sleeve of embedding in this mounting hole further includes: the external connection part connected with the clamping cylinder and the clamping part with the conical surface on the outer surface are outwards opened in the direction close to the feeding assembly and are in sliding fit with the inner wall of the mounting hole, a plurality of strip-shaped through grooves extending along the radial direction are formed in the side wall of the clamping part, the clamping cylinder drives the clamping sleeve to move towards the clamping cylinder, the clamping of the tubular part in a whole circumferential direction can be achieved, the clamping area is small, the clamping force is stable, additional damage to the part is avoided, and the subsequent processing of the part is facilitated; further, be connected with a transition portion between external portion and clamping part, have a clearance district between the surface of this transition portion and the inner wall of mounting hole, set up a plurality of gas pocket that sets up along circumference interval on the outer wall of transition portion, set up a gas passage on the centre gripping base, one end and air supply connection the other end of gas passage can communicate with the clearance district, and in gas gets into the centre gripping sleeve from the gas passage, can outwards blow out of the piece that real-time milling process produced, avoid remaining the piece damage next waiting machined part of adhering to on the centre gripping sleeve, guarantee the yields of processing.

Drawings

FIG. 1 is a schematic diagram of the overall structure of an automatic feeding on-line production device of the present utility model;

FIG. 2 is a schematic cross-sectional view taken along line A-A of FIG. 1;

FIG. 3 is an enlarged schematic view of FIG. 2 at B;

fig. 4 is a schematic structural view of a clamping sleeve of the automatic feeding on-line production device of the present utility model.

In the above figures: 1. a clamping base; 11. a mounting hole; 12. a gas channel; 2. a clamping cylinder; 3. clamping the sleeve; 31. an external connection part; 32. a clamping part; 33. a strip-shaped through groove; 34. an inner flange; 35. a transition section; 36. a gap region; 37. air holes; 100. a tubular part.

Detailed Description

The present patent will be further understood by the specific examples given below, which are not intended to be limiting.

Example 1: a clamping jig for metal piece processing for clamping a tubular part 100, comprising: clamping base 1, install clamping cylinder 2 and clamping sleeve 3 in clamping base 1, it has a mounting hole 11 to open on the terminal surface of clamping base 1 one end, embedding in this mounting hole 11 clamping sleeve 3 further includes: the clamping cylinder comprises an external connection part 31 connected with the clamping cylinder 2 and a clamping part 32 with a conical surface on the outer surface, wherein the outer surface of the clamping part 32 is outwards opened and is in sliding fit with the inner wall of the mounting hole 11, and a plurality of strip-shaped through grooves 33 extending along the radial direction are formed in the side wall of the clamping part 32;

a transition part 35 is connected between the external connection part 31 and the clamping part 32, a gap area 36 is provided between the outer surface of the transition part 35 and the inner wall of the mounting hole 11, a plurality of air holes 37 are formed in the outer wall of the transition part 35 at intervals along the circumferential direction, a gas channel 12 is formed in the clamping base 1, and one end of the gas channel 12 connected with a gas source can be communicated with the gap area 36.

An inner flange 34 is disposed on the inner wall of the clamping portion 32 near one end of the external portion 31, and the end surface of the inner flange 34 facing away from the clamping cylinder 2 is used for contacting with the end surface of one end of the inner pipe part 100 embedded in the clamping portion 32, so that the position of the part in the horizontal direction is ensured, and the consistency of the positions of the parts between clamping multiple times is ensured.

The 4 strip-shaped through grooves 33 are provided at equal intervals in the circumferential direction.

Example 2: a clamping jig for metal piece processing for clamping a tubular part 100, comprising: clamping base 1, install clamping cylinder 2 and clamping sleeve 3 in clamping base 1, it has a mounting hole 11 to open on the terminal surface of clamping base 1 one end, embedding in this mounting hole 11 clamping sleeve 3 further includes: the clamping cylinder comprises an external connection part 31 connected with the clamping cylinder 2 and a clamping part 32 with a conical surface on the outer surface, wherein the outer surface of the clamping part 32 is outwards opened and is in sliding fit with the inner wall of the mounting hole 11, and a plurality of strip-shaped through grooves 33 extending along the radial direction are formed in the side wall of the clamping part 32;

The strip-shaped through groove 33 extends to the transition portion 35 and communicates with the air hole 37.

The diameter of the clamping portion 32 gradually increases in a direction approaching the transition portion 35.

The working principle of the utility model is as follows:

the tubular part is sent into the clamping sleeve, the end face of one end of the tubular part is contacted with the inner flange of the clamping sleeve, the position of the tubular part is limited by the inner flange, the clamping cylinder is started, the clamping cylinder drives the clamping sleeve to move towards the clamping cylinder, at the moment, the strip-shaped through groove of the clamping part is extruded by the clamping base, the tubular part is held tightly, and the holding force of the clamping part on the tubular part is increased;

in the processing process, part of gas of the clamping cylinder is blown out from the air holes of the clamping sleeve through the gas channel on the clamping base, and scraps generated in processing are blown out from the inside of the clamping sleeve, so that the effect of removing scraps is achieved.

When the clamping jig for machining the metal part is adopted, the clamping cylinder drives the clamping sleeve to move towards the direction of the clamping cylinder, the strip-shaped through groove of the clamping part is extruded by the clamping base, so that the tubular part is clamped in a fully circumferential stable holding manner, the holding force of the clamping part on the tubular part is increased, the clamping force is improved, the damage to the surface of the tubular part is reduced, and the yield of products is increased; and the chip generated by processing is blown out from the inside of the clamping sleeve through the gas entering the clamping sleeve from the gas channel, so that the chip removing effect is realized, the chip is prevented from being remained in the clamping sleeve to scratch the next tubular part to be processed, and the yield of the product is increased.

The above embodiments are provided to illustrate the technical concept and features of the present utility model and are intended to enable those skilled in the art to understand the content of the present utility model and implement the same, and are not intended to limit the scope of the present utility model. All equivalent changes or modifications made in accordance with the spirit of the present utility model should be construed to be included in the scope of the present utility model.

Claims

1. Clamping jig for metal part machining, for clamping a tubular part (100), comprising: clamping base (1), install clamping cylinder (2) and clamping sleeve (3) in clamping base (1), open on the terminal surface of clamping base (1) one end has a mounting hole (11), its characterized in that: the clamping sleeve (3) embedded in the mounting hole (11) further comprises: external portion (31) and the clamping part (32) that the outward appearance is the conical surface that are connected with centre gripping cylinder (2), the outward surface of clamping part (32) outwards opens and with the inner wall sliding fit of mounting hole (11), a plurality of along radial strip through groove (33) have been seted up on the lateral wall of clamping part (32), be connected with a transition portion (35) between external portion (31) and clamping part (32), have a clearance district (36) between the surface of this transition portion (35) and the inner wall of mounting hole (11), a plurality of gas pocket (37) that set up along circumference interval have been seted up on the outer wall of transition portion (35), a gas channel (12) have been seted up on centre gripping base (1), one end and the other end of gas channel (12) that the air supply is connected can communicate with clearance district (36).

2. The clamping jig for metal piece machining according to claim 1, wherein: an inner flange (34) is arranged on the inner wall of the clamping part (32) close to one end of the external connection part (31), and the end face of the inner flange (34) away from the clamping cylinder (2) is used for being in contact with the end face of one end of the inner pipe part (100) embedded in the clamping part (32).

3. The clamping jig for metal piece machining according to claim 1, wherein: the 4 strip-shaped through grooves (33) are arranged at equal intervals along the circumferential direction.

4. The clamping jig for metal piece machining according to claim 1, wherein: the strip-shaped through groove (33) extends to the transition part (35) and is communicated with the air hole (37).

5. The clamping jig for metal piece machining according to claim 1, wherein: the diameter of the clamping portion (32) gradually increases in a direction approaching the transition portion (35).