Machining equipment for eccentric shaft part of insert pin of sliding block

Abstract

The utility model provides processing equipment for an eccentric shaft part of a sliding block insert pin, which comprises a fixing mechanism and a positioning mechanism, the fixing mechanism is detachably connected with the positioning mechanism, a fastening accommodating space for accommodating the sliding block insert pin is arranged in the fixing mechanism, and the sliding block insert pin is provided with the eccentric shaft part, a clamping part and a positioning head part. The eccentric shaft part can penetrate through the fastening containing space, the clamping part is matched with the fastening containing space, and the positioning head part is detachably connected with the positioning mechanism. The eccentric shaft part of the sliding block insert pin can be fixedly positioned when the clamping part is located in the fastening containing space and the positioning head part is detachably connected with the positioning mechanism, and then machining is completed through a grinding machine. The sliding block insert pin has the beneficial effects that the eccentric size of the eccentric shaft part in the middle of the sliding block insert pin can meet the requirement of 0.17 + / -0.005 mm, and the quality consistency and the part interchangeability of the sliding block insert pin are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of manufacturing equipment, and particularly relates to a processing equipment for the eccentric shaft part of a slider insert pin. Background Art

[0002] A tee pipe, that is, a pipe joint with three openings, is used in a pipe network for transporting liquids and gases. Due to different transported media, the materials of tee pipes are divided into cast iron, cast steel, cast copper, cast aluminum, plastic, glass, etc., and are widely used in various fields.

[0003] In the medical field, a medical tee pipe is a commonly used connecting tool in the conveying pipelines in the medical field, mainly used for transporting liquids, gases, and even for temporarily dredging blood in the human body. There are many types of medical tee pipes and they are widely used. For example, many medical devices in the medical field contain medical tee pipes, and medical tee pipes are used to transport medicinal liquids, etc.

[0004] Among existing medical tee pipes, there is a "卜"-shaped medical tee pipe for transporting liquids. Currently, during the production process of this medical tee pipe, multiple slider insert pins are required to be inserted into each other to complete the production. However, a part in the middle of the slider insert pin used for production is not concentric with other parts, that is, the axis has an offset of 0.17±0.005 mm. Here, this part is called the eccentric shaft part, and the tolerance requirement for the middle eccentric shaft part is relatively high, with a tolerance of 0 to +0.005 mm. Since the slider insert pin is prone to wear or breakage during the production process of the medical tee pipe and needs to be frequently replaced, it is required that the slider insert pin can achieve interchangeability. Currently, the production method of this slider insert pin is to first machine a purchased standard part to a Ф2.56 size with a grinding machine, then manufacture a copper electrode, use EDM to machine the diameter of the eccentric shaft part to Ф2.22 size, and finally achieve the surface finish requirement of Ra0.4um on the drawing through a manual polishing process.

[0005] However, the slider insert pins produced by this production method of slider insert pins generally have the following problems:

[0006] 1) After EDM machining the middle eccentric shaft part, the surface roughness is large. After manual polishing, the part deforms greatly during the polishing process, and it is very difficult for the eccentric dimension to reach the 0.17±0.005 mm required by the drawing.

[0007] 2) It is very difficult for the machined parts to achieve interchangeability. Each time a slider insert pin is replaced, the mold needs to be removed from the injection molding machine. After the manufacturing master matches the slider insert pin, normal production can be carried out. Moreover, the time for replacing the slider insert pin is long and the efficiency is low.

[0008] 3) It is very difficult to replace the slider insert pin each time, with high requirements for the experience of the manufacturing master, and flash is easily generated during injection molding production. Utility Model Content

[0009] In order to solve the problems in the prior art, the utility model provides a processing equipment for the eccentric shaft part of the slider pin. By arranging a fixing mechanism and a positioning mechanism that cooperate with each other in the processing equipment for the eccentric shaft part of the slider pin, the eccentric size of the middle eccentric shaft part of the slider pin can reach the requirement of 0.17±0.005mm, which greatly improves the quality consistency, production efficiency and parts interchangeability of the slider pin, and solves the problems of unstable manufacturing quality and difficult replacement and maintenance of slider pins used in the production of medical three-way tubes in the prior art.

[0010] The utility model provides a processing device for the eccentric shaft portion of a slider pin, comprising a fixing mechanism and a positioning mechanism, wherein the fixing mechanism is detachably connected to the positioning mechanism, a fastening and accommodating space for accommodating the slider pin is provided in the fixing mechanism, the slider pin is provided with an eccentric shaft portion, a clamping portion and a positioning head portion, the eccentric shaft portion can pass through the fastening and accommodating space and the clamping portion is adapted to the fastening and accommodating space, the positioning head portion is detachably connected to the positioning mechanism, the eccentric shaft portion of the slider pin can be fixed and positioned when the clamping portion is located in the fastening and accommodating space and the positioning head portion is detachably connected to the positioning mechanism, and then the processing is completed by a grinder.

[0011] The utility model is further improved in that the fixing mechanism is a fixing seat, the fixing seat is cylindrical as a whole, one end of the fixing seat is provided with a positioning head accommodating space, and the positioning head accommodating space is adapted to the positioning head portion.

[0012] The utility model is further improved in that the length of the fixing seat is the same as the length of the clamping portion, and the fastening accommodation space is a cylindrical space with a diameter that matches the diameter of the clamping portion.

[0013] The utility model is further improved in that the positioning mechanism comprises a positioning pin and a positioning hole assembly, the positioning hole assembly is fixedly arranged at one end of the fixing seat where a positioning head accommodating space is opened, and the positioning pin and the positioning hole assembly are detachably connected.

[0014] The utility model is further improved in that the positioning hole assembly comprises a first positioning hole and a second positioning hole, and the first positioning hole and the second positioning hole are adapted to the positioning head accommodating space.

[0015] The utility model is further improved in that the positioning head is separately provided with fixing through holes, and the positioning pin can sequentially pass through the first positioning hole, the fixing through hole and the second positioning hole to be detachably connected.

[0016] Compared with the prior art, the beneficial effects of the utility model are as follows: the utility model provides a processing equipment for the eccentric shaft part of the slider pin, and by arranging a fixing mechanism and a positioning mechanism that cooperate with each other in the processing equipment for the eccentric shaft part of the slider pin, the eccentric shaft part of the slider pin can be fixed and positioned when the clamping part is located in the fastening accommodating space and the positioning head part is detachably connected to the positioning mechanism, and then the processing is completed by the grinder, which can make the eccentric size of the middle eccentric shaft part of the slider pin reach the requirement of 0.17±0.005mm, greatly improving the quality consistency, production efficiency and parts interchangeability of the slider pin, thereby improving the product quality and product competitiveness of the medical tee pipe, and solving the problems of unstable manufacturing quality and difficulty in replacement and maintenance of slider pins used in the production of medical tees in the prior art. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the solutions in the present application or the prior art, a brief introduction is given below to the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0018] Figure 1 This is a structural diagram of the processing equipment for the eccentric shaft part of the slider pin of the utility model;

[0019] Figure 2 This is a structural exploded diagram of the processing equipment for the eccentric shaft part of the slider pin of the utility model;

[0020] Figure 3 The utility model is a structural diagram of the processing equipment used for the eccentric shaft part of the slider pin.

[0021] In the figure, 1-fixing mechanism, 2-positioning mechanism, 21-positioning pin, 22-first positioning hole, 23-second positioning hole, 3-slider insert pin, 31-eccentric shaft part, 32-clamping part, 33-positioning head part, 34-fixing through hole. DETAILED DESCRIPTION

[0022] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by technicians in the technical field of this application; the terms used in the specification of the application are only for the purpose of describing specific embodiments and are not intended to limit the application; the terms "including" and "having" in the specification and claims of this application and the above-mentioned figure descriptions and any variations thereof are intended to cover non-exclusive inclusions.

[0023] Reference to "embodiments" herein means that a particular feature, structure, or characteristic described in conjunction with the embodiments may be included in at least one embodiment of the present application. The appearance of the phrase in various locations in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment that is mutually exclusive with other embodiments. It is explicitly and implicitly understood by those skilled in the art that the embodiments described herein may be combined with other embodiments.

[0024] In order to enable those skilled in the art to better understand the solution of the present application, the technical solution in the embodiments of the present application will be clearly and completely described below in conjunction with the accompanying drawings.

[0025] like Figure 1-3 As shown, the utility model provides a processing device for the eccentric shaft part of the slider pin, including a fixing mechanism 1 and a positioning mechanism 2, the fixing mechanism 1 and the positioning mechanism 2 are detachably connected, a fastening accommodation space for accommodating the slider pin 3 is provided in the fixing mechanism 1, the slider pin 3 is provided with an eccentric shaft part 31, a clamping part 32 and a positioning head part 33, the eccentric shaft part 31 can pass through the fastening accommodation space and the clamping part 32 is adapted to the fastening accommodation space, and the positioning head part 33 is detachably connected to the positioning mechanism 2. In this embodiment, the eccentric shaft part of the slider pin can be fixed and positioned when the clamping part is located in the fastening accommodation space and the positioning head part is detachably connected to the positioning mechanism, and then the processing is completed by the grinder, so that the eccentric size of the eccentric shaft part in the middle of the slider pin can reach the requirement of 0.17±0.005mm, which greatly improves the quality consistency, production efficiency and parts interchangeability of the slider pin, thereby improving the product quality and product competitiveness of the medical three-way tube.

[0026] like Figure 1-2As shown, the fixing mechanism 1 is a fixing seat, which is cylindrical as a whole, and a positioning head accommodating space is opened at one end of the fixing seat, and the positioning head accommodating space is adapted to the positioning head part 33; the length of the fixing seat is the same as the length of the clamping part 32, the fastening accommodating space is a cylindrical space and the diameter is adapted to the diameter of the clamping part 32; the positioning mechanism 2 includes a positioning pin 21 and a positioning hole assembly, the positioning hole assembly is fixedly arranged at one end of the fixing seat where the positioning head accommodating space is opened, and the positioning pin 21 and the positioning hole assembly are detachably connected; the positioning hole assembly includes a first positioning hole 22 and a second positioning hole 23, and the first positioning hole 22 and the second positioning hole 23 are adapted to the positioning head accommodating space; the positioning head part 33 is opened with a fixing through hole 34, and the positioning pin 21 can pass through the first positioning hole 22 and the fixing through hole 34 in sequence and be detachably connected to the second positioning hole 22. In this embodiment, when the processing equipment for the slider pin eccentric shaft portion is working, the slider pin is passed through the fastening accommodation space, the clamping part is clamped in the fastening accommodation space, the positioning head part is clamped in the positioning head accommodation space, and the positioning pin is sequentially passed through the first positioning hole, the fixing through hole and the second positioning hole to be fastened and connected, the entire slider pin is fixed, and then the eccentric shaft portion is ground on the grinder with the fixing seat as the reference to complete the processing operation. Figure 3 It is shown that the axis center of the eccentric shaft part deviates by 0.17 mm from the axis center of the clamping part and the axis center of the positioning head part.

[0027] It can be seen from the above that the utility model provides a processing equipment for the eccentric shaft part of the slider pin. By arranging a fixing mechanism and a positioning mechanism that cooperate with each other in the processing equipment for the eccentric shaft part of the slider pin, the eccentric shaft part of the slider pin can be fixed and positioned when the clamping part is located in the fastening accommodating space and the positioning head part is detachably connected to the positioning mechanism, and then the processing is completed by the grinder. The eccentric size of the middle eccentric shaft part of the slider pin can reach the requirement of 0.17±0.005mm, which greatly improves the quality consistency, production efficiency and parts interchangeability of the slider pin, thereby improving the product quality and product competitiveness of the medical tee pipe, and solving the problems of unstable manufacturing quality and difficulty in replacement and maintenance of slider pins used in the production of medical tees in the prior art.

[0028] The specific implementation methods described above are preferred implementation methods of the present utility model, and are not intended to limit the specific implementation scope of the present utility model. The scope of the present utility model includes but is not limited to the specific implementation methods. All equivalent changes made in accordance with the present utility model are within the protection scope of the present utility model.

Claims

1. A processing device for the eccentric shaft part of a slider pin, characterized in that: It includes a fixing mechanism and a positioning mechanism, the fixing mechanism is detachably connected to the positioning mechanism, a fastening accommodation space for accommodating a slider pin is provided in the fixing mechanism, the slider pin is provided with an eccentric shaft portion, a clamping portion and a positioning head portion, the eccentric shaft portion can pass through the fastening accommodation space and the clamping portion is adapted to the fastening accommodation space, the positioning head portion is detachably connected to the positioning mechanism, the eccentric shaft portion of the slider pin can be fixedly positioned when the clamping portion is located in the fastening accommodation space and the positioning head portion is detachably connected to the positioning mechanism, and then processed by a grinder.

2. The processing equipment for the eccentric shaft part of the slider pin according to claim 1 is characterized in that: The fixing mechanism is a fixing seat, which is cylindrical in shape as a whole. A positioning head accommodating space is provided at one end of the fixing seat, and the positioning head accommodating space is adapted to the positioning head portion.

3. The processing equipment for the eccentric shaft portion of the slider pin according to claim 2 is characterized in that: The length of the fixing seat is the same as the length of the clamping portion, and the fastening accommodation space is a cylindrical space with a diameter that matches the diameter of the clamping portion.

4. The processing equipment for the eccentric shaft portion of the slider pin according to claim 3 is characterized in that: The positioning mechanism comprises a positioning pin and a positioning hole assembly. The positioning hole assembly is fixedly arranged at one end of the fixing seat where a positioning head accommodating space is opened. The positioning pin and the positioning hole assembly are detachably connected.

5. The processing equipment for the eccentric shaft portion of the slider pin according to claim 4 is characterized in that: The positioning hole assembly includes a first positioning hole and a second positioning hole, and the first positioning hole and the second positioning hole are adapted to the positioning head accommodating space.

6. The processing equipment for the eccentric shaft portion of the slider pin according to claim 5 is characterized in that: The positioning head is separately provided with fixing through holes, and the positioning pin can pass through the first positioning hole, the fixing through hole and the second positioning hole in sequence to be detachably connected.

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