Round die coaxial positioning tool

Abstract

The utility model discloses a coaxial positioning tool for a round die, which comprises a left jacking group, a right jacking group, a left pressing group, a right pressing group, a left pressing group and a right pressing group, the right jacking group comprises a right ejector pin capable of moving in the left-right direction, a second conical section with a small left part and a large right part is arranged on the outer side of the left part of the right ejector pin, and a clamping space is formed between the first conical section and the second conical section. The machining efficiency of the round die is effectively improved, the machining precision is improved, and the rejection rate is reduced.

Description

Technical Field

[0001] The utility model relates to a clamp, in particular to a circular die coaxial positioning tool. Background Art

[0002] The circular mold includes two semicircular sub-molds. During production, it is usually necessary to first open milling flattening positions on the semicircular outer sides of the two sub-molds to facilitate clamping and positioning, and then use chucks and other fixtures to clamp and process the two sub-molds separately. When the two sub-molds are clamped and processed separately, in order to ensure the accuracy of the two sub-molds when the molds are closed, it takes a lot of time to proofread. Therefore, the overall production efficiency of the circular mold is low, and it is difficult to improve production benefits. Utility Model Content

[0003] The utility model aims to provide a circular die coaxial positioning tool to solve one or more technical problems existing in the prior art and at least provide a beneficial choice or create conditions.

[0004] The solution of the utility model to solve the technical problem is:

[0005] The circular mold coaxial positioning tool comprises: a left pressing group, comprising a left ejector pin, wherein a first conical section which is larger on the left and smaller on the right is arranged on the right outer side of the right ejector pin; a right pressing group, comprising a right ejector pin movable in the left and right directions, wherein a second conical section which is smaller on the left and larger on the right is arranged on the left outer side of the left portion of the right ejector pin, and a clamping space is formed between the first conical section and the second conical section.

[0006] This technical solution has at least the following beneficial effects: before processing, the two sub-molds of the circular mold are directly locked with each other by guide pins and guide sleeves. At this time, the two sub-molds are directly combined into a circular mold, and then placed in the clamping space formed by the first tapered section and the second tapered section, so that the left end of the circular mold is against the first tapered section, and then the right ejector pin of the right ejector group moves to the left, and the second tapered section is used to press against the right end of the circular mold. At this time, the first tapered section and the second tapered section can be used to tighten and position the two ends of the circular mold, and the conical limit of the first tapered section and the second tapered section is used to ensure the concentricity and position accuracy of the circular mold after the mold is combined. During processing, the two parts of the circular mold can be directly processed. In this way, the number of times of disassembly and assembly of the mold, concentricity calibration and other processes are reduced when positioning the circular mold, which effectively improves the processing efficiency of the circular mold, and is conducive to improving processing accuracy and reducing scrap rate.

[0007] As a further improvement of the above technical solution, the right pressing group further includes a pressing seat, a rotating sleeve and a rotating rod, the rotating sleeve is slidably connected to the pressing seat in the left-right direction, the rotating rod is rotatably connected to the right side of the pressing seat, the rotating rod and the rotating sleeve are connected to each other by threads, and the left end of the rotating sleeve presses against the right end of the right ejector. When the right ejector needs to be adjusted to the left or right, the rotating rod is rotated. Since the rotating rod is threadedly connected to the rotating sleeve and the rotating sleeve is slidably connected to the pressing seat, the rotating sleeve can be driven to tighten the right ejector to the left or loosen the right ejector to the right as the right ejector rotates forward or reversely, thereby achieving the clamping positioning or loosening of the circular mold.

[0008] As a further improvement of the above technical solution, a limited position segment is provided inside the left end of the rotating sleeve, the inner diameter of the limited position segment gradually decreases from left to right, and a mounting segment is provided at the right end of the right ejector, and the mounting segment is connected in the limited position segment. A mounting segment with an outer diameter gradually decreases from left to right is provided at the right end of the right ejector, and the mounting segment is inserted into the limited position segment for positioning. When the rotating sleeve presses the right ejector to the left, it can better ensure that the coaxiality of the right ejector is maintained when the rotating sleeve presses the right ejector to position, thereby improving the effect of positioning the circular mold.

[0009] As a further improvement of the above technical solution, a slot hole is provided on the outer side of the left end of the top pressure seat, and the slot hole extends to the left end of the top pressure seat. The top pressure seat is provided with locking sleeves at the positions on both sides of the slot hole, and a locking piece is provided between the two locking sleeves. When the rotating sleeve needs to be adjusted left and right to adjust the pressure of the right top needle on the circular mold, the locking piece on the two locking sleeves is first released. After the position of the rotating sleeve is adjusted, the two locking sleeves are locked to each other by using the locking piece. At this time, the position where the slot hole is opened in the top pressure seat can be elastically deformed, reducing the space outside the rotating sleeve, thereby further clamping the rotating sleeve and positioning it.

[0010] As a further improvement of the above technical solution, the locking member includes a locking bolt and a locking nut, and the locking bolt passes through the two locking sleeves and is connected to the locking nut. When the rotating sleeve needs to be locked, the locking bolt passes through the two locking sleeves, and then the locking nut is connected to the end of the locking bolt, and the two locking sleeves are clamped together by the locking nut and the head of the locking bolt, so as to further clamp and position the rotating sleeve.

[0011] As a further improvement of the above technical solution, the end of the locking bolt is connected to a turning handle. When the locking bolt needs to be turned, force is applied to the turning handle, which can improve the convenience of turning the locking bolt and reduce labor intensity.

[0012] As a further improvement of the above technical solution, a convex pattern is provided on the inner side of the left end of the pressing seat, and a plurality of the convex patterns are provided along the axial direction of the rotating sleeve. When the pressing seat locks the right ejector pin, the convex pattern can increase the pressure on the outer side of the rotating sleeve, thereby improving the clamping effect on the installation section, so that the pressing seat can lock the rotating sleeve more stably.

[0013] As a further improvement of the above technical solution, the right end of the rotating rod is connected with a rotating wheel. When the rotating rod needs to be rotated, force can be applied to the rotating wheel to rotate the rotating rod, thereby improving the convenience of operation and reducing labor intensity.

[0014] As a further improvement of the above technical solution, an adjustment slider is provided on the bottom side of the top pressure seat, and a slider nut is connected between the adjustment slider and the top pressure seat. When the top pressure seat is connected to the placement surface of the peripheral, the slider nut on the bottom side can be used to translate on the placement surface to adjust the position of the top pressure seat, and finally the slider nut is used to lock the top pressure seat on the placement surface, so as to improve the flexibility of adjusting the position of the right ejector pin, thereby better positioning molds of different specifications and sizes.

[0015] As a further improvement of the above technical solution, the left ejection group includes a three-jaw chuck, and the three-jaw chuck clamps the left end of the left ejector. The left ejector is clamped and positioned by the three-jaw chuck, which is easy to operate and can be clamped stably to maintain the coaxiality of the left ejector and the right ejector. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model, the following is a brief description of the drawings required for the description of the embodiments. Obviously, the drawings described are only part of the embodiments of the present utility model, not all of the embodiments, and those skilled in the art can also obtain other design solutions and drawings based on these drawings without creative work.

[0017] Figure 1 It is an overall stereogram of the utility model when not in use.

[0018] Figure 2 It is an overall top view of the utility model when in use.

[0019] Figure 3 yes Figure 2 Schematic diagram of the AA cross-section structure.

[0020] In the accompanying drawings: 110-left ejector, 111-first tapered section, 120-three-jaw chuck, 210-right ejector, 211-second tapered section, 212-mounting section, 220-pressing seat, 221-slot hole, 222-locking sleeve, 223-locking bolt, 224-locking nut, 225-turn handle, 226-adjusting slider, 230-turn sleeve, 240-turn rod, 241-turn wheel. DETAILED DESCRIPTION

[0021] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0022] In the description of the present invention, it should be understood that descriptions involving orientation, such as up, down, front, back, left, right, etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0023] In the description of the present utility model, "several" means one or more, "more" means more than two, "greater than", "less than", "exceed" etc. are understood to exclude the number itself, and "above", "below", "within" etc. are understood to include the number itself. If there is a description of "first" or "second", it is only used for the purpose of distinguishing the technical features, and cannot be understood as indicating or implying the relative importance or implicitly indicating the number of the indicated technical features or implicitly indicating the order of the indicated technical features.

[0024] In the description of the present invention, unless otherwise clearly defined, terms such as setting, installing, connecting, etc. should be understood in a broad sense, and technicians in the relevant technical field can reasonably determine the specific meanings of the above terms in the present invention based on the specific content of the technical solution.

[0025] Reference Figure 1 , Figure 2 and Figure 3 , a circular die coaxial positioning tooling includes a left pressing group and a right pressing group, wherein the left pressing group includes a left ejector pin 110, and a first tapered section 111 with a larger left side and a smaller right side is arranged on the outer side of the right portion of the left ejector pin 110. The left ejector pin 110 can be divided into a left and a right part. The left part has a smaller outer diameter and can be used for positioning, and the right part has a larger outer diameter. The first tapered section 111 is formed in the right part, and the outer diameter gradually decreases from left to right. The right ejector group includes a right ejector pin 210 movable in the left and right directions, and a second tapered section 211 with a smaller left side and a larger right side is arranged on the outer side of the left portion of the right ejector pin 210, and a clamping space is formed between the first tapered section 111 and the second tapered section 211.

[0026] As can be seen from the above, before processing, the two sub-molds of the circular mold are directly locked with each other by guide pins and guide sleeves. At this time, the two sub-molds are directly combined into a circular mold, and then placed in the clamping space formed by the first tapered section 111 and the second tapered section 211, so that the left end of the circular mold is against the first tapered section 111, and then the right ejector pin 210 of the right ejector group moves to the left, and the second tapered section 211 is used to press against the right end of the circular mold. At this time, the first tapered section 111 and the second tapered section 211 can be used to press and position the two ends of the circular mold, and the conical limit of the first tapered section 111 and the second tapered section 211 is used to ensure the concentricity and position accuracy of the circular mold after the mold is combined. During processing, the two parts of the circular mold can be directly processed. In this way, the number of times of disassembly and assembly of the mold, concentricity calibration and other processes are reduced when positioning the circular mold, which effectively improves the processing efficiency of the circular mold, and is conducive to improving processing accuracy and reducing scrap rate.

[0027] In the right pressing group, there are various structural forms for driving the right ejector 210 to move left and right. For example, the right ejector 210 is directly driven to move left or right by a cylinder, a hydraulic cylinder or an electric screw. In the present embodiment, the right pressing group further includes a pressing seat 220, a rotating sleeve 230 and a rotating rod 240. The rotating sleeve 230 is slidably connected to the pressing seat 220 along the left and right directions. A slide rail or a slide groove extending along the left and right directions may be provided in the pressing seat 220. Correspondingly, a slide rail or a slide groove extending along the left and right directions is provided on the outer side of the rotating sleeve 230. The slide groove or slide rail extending in the direction can realize the sliding of the rotating sleeve 230 in the top pressure seat 220 through the mutual cooperation of the slide rail and the slide groove. The rotating rod 240 is rotatably connected to the right side of the top pressure seat 220. A flange can be connected to the right side of the top pressure seat 220, and the rotating rod 240 is connected to the flange through a bearing. The flange is then fixed to the right side of the top pressure seat 220 by screws. The rotating rod 240 and the rotating sleeve 230 are connected to each other through threads, and the left end of the rotating sleeve 230 presses on the right end of the right ejector pin 210. When the right ejector 210 needs to be adjusted to the left or right, the rotating rod 240 is rotated. Since the rotating rod 240 is threadedly connected to the rotating sleeve 230, and the rotating sleeve 230 is slidably connected to the ejector seat 220, as the right ejector 210 is rotated forward or reversely, the rotating sleeve 230 can be driven to tighten the right ejector 210 to the left or loosen the right ejector 210 to the right, thereby achieving the clamping positioning or loosening of the circular mold.

[0028] In the above embodiment, the right end of the right ejector 210 can be a straight section of shaft. When in use, the right end of the right ejector 210 is directly matched with the rotating sleeve 230 through the hole shaft. In this embodiment, the right end of the right ejector 210 is also matched with the rotating sleeve 230 through a conical structure. Specifically, a limited segment is provided inside the left end of the rotating sleeve 230, and the inner diameter of the limited segment gradually decreases from left to right. The right end of the right ejector 210 is provided with a mounting segment 212, and the mounting segment 212 is connected to the limited segment. The right end of the right ejector 210 is provided with a mounting segment 212 whose outer diameter gradually decreases from left to right. The mounting segment 212 is inserted into the limited segment for positioning. When the rotating sleeve 230 presses the right ejector 210 to the left, it can better ensure that the rotating sleeve 230 keeps the coaxiality of the right ejector 210 when the right ejector 210 is pressed tightly and positioned, thereby improving the effect of positioning the circular mold.

[0029] In the above embodiment, the positioning of the rotating sleeve 230 in the pressing seat 220 mainly relies on the right ejector pin 210 pressing the right ejector pin 210 to the right at the left end of the rotating sleeve 230 and the threaded cooperation limitation of the rotating rod 240 at the right end of the rotating sleeve 230, thereby realizing the relative limitation of the rotating sleeve 230 in the pressing seat 220. In the present embodiment, a slot hole 221 is provided on the outer side of the left end of the pressing seat 220, and the slot hole 221 extends to the left end of the pressing seat 220. The pressing seat 220 is respectively provided with locking sleeves 222 at the positions on both sides of the slot hole 221, and a locking piece is provided between the two locking sleeves 222. When it is necessary to adjust the rotating sleeve 230 to the left and right to adjust the pressure of the right ejector 210 on the circular mold, first release the locking piece on the two locking sleeves 222. After adjusting the position of the rotating sleeve 230, use the locking piece to lock the two locking sleeves 222 to each other. At this time, the position of the slot 221 of the top pressure seat 220 can be elastically deformed to reduce the space outside the rotating sleeve 230, thereby further clamping the rotating sleeve 230 and positioning it.

[0030] The locking member is mainly used to connect the two locking sleeves 222 to each other. An internal thread can be directly set in one locking sleeve 222, and the locking section is inserted from the other locking sleeve 222 into the locking sleeve 222 with the internal thread to achieve threaded connection. In this embodiment, the locking member includes a locking bolt 223 and a locking nut 224. The locking bolt 223 passes through the two locking sleeves 222 and is connected to the locking nut 224. When the rotating sleeve 230 needs to be locked, the locking bolt 223 is passed through the two locking sleeves 222, and then the locking nut 224 is connected to the end of the locking bolt 223. The two locking sleeves 222 are clamped to each other by the locking nut 224 and the head of the locking bolt 223, so that the rotating sleeve 230 is further clamped and positioned.

[0031] Furthermore, the end of the locking bolt 223 is connected to a turning handle 225. When the locking bolt 223 needs to be turned, the turning handle 225 is used to apply force, which can improve the convenience of turning the locking bolt 223 and reduce labor intensity.

[0032] In some embodiments, a convex pattern is provided on the inner side of the left end of the pressing seat 220, the convex pattern extends in a ring shape, and a plurality of the convex patterns are provided along the axial direction of the rotating sleeve 230. When the pressing seat 220 locks the right ejector pin 210, the convex pattern can increase the pressure on the outer side of the rotating sleeve 230, thereby improving the clamping effect on the mounting section 212, so that the pressing seat 220 can lock the rotating sleeve 230 more firmly.

[0033] In order to facilitate the rotation of the rotating wheel 241, in this embodiment, the right end of the rotating rod 240 is connected with the rotating wheel 241. In addition, a handle or the like can also be connected to the right end of the rotating rod 240 to achieve the same effect. When the rotating rod 240 needs to be rotated, force can be applied to the rotating wheel 241 to rotate the rotating rod 240, thereby improving the convenience of operation and reducing labor intensity.

[0034] In the above embodiment, the left and right activity adjustment of the right ejector pin 210 is fine-tuned by the rotating rod 240, which is mainly used for clamping or loosening the circular mold. In order to facilitate the use of different circular molds, the top pressure seat 220 can be adjusted along the left and right directions to improve the overall versatility and flexibility in use. Specifically, an adjusting slider 226 is provided on the bottom side of the top pressure seat 220, and a slider nut is connected between the adjusting slider 226 and the top pressure seat 220. In actual applications, the slider nut includes an adjusting slider 226, an adjusting stud and an adjusting nut. The block 226 is located at the bottom side of the top pressing seat 220, and is used to cooperate with the adjustment slide of the external device. The bottom end of the adjustment stud is rotatably connected to the adjustment slider 226, and the rotation axis of the adjustment stud extends in the up-down direction. The top end of the adjustment stud extends upward into the top pressing seat 220, or the adjustment stud is directly passed through the adjustment slider 226 upward and extends into the top pressing seat 220, and then the adjustment nut and the adjustment stud are connected to each other, and the adjustment slider 226 is tightened and positioned on the bottom side of the top pressing seat 220 by the adjustment nut, so as to achieve the locking and positioning of the adjustment slider 226. When the top pressing seat 220 is connected to the placement surface of the external device, the slider nut on its bottom side can be used to translate and move on the placement surface to adjust the position of the top pressing seat 220, and finally the slider nut is used to lock and position the top pressing seat 220 on the placement surface, so as to improve the flexibility of adjusting the position of the right ejector pin 210, so as to better position molds of different specifications and sizes.

[0035] When the left ejector 110 is in use, it is necessary to position the left ejector 110. Specifically, the left ejector group includes a three-jaw chuck 120, and the three-jaw chuck 120 clamps the left end of the left ejector 110. The left ejector 110 is clamped and positioned by the three-jaw chuck 120, which is easy to operate and can be clamped stably to maintain the coaxiality of the left ejector 110 and the right ejector 210.

[0036] The preferred implementation modes of the present invention are specifically described above, but the present invention is not limited to the described embodiments. Those skilled in the art may make various equivalent modifications or substitutions without violating the spirit of the present invention, and these equivalent modifications or substitutions are all included in the scope defined by the claims of this application.

Claims

1. Circular die coaxial positioning tooling, characterized by: include: The left ejection group comprises a left ejector pin (110), wherein a first conical section (111) which is larger on the left and smaller on the right is arranged on the outer side of the right portion of the left ejector pin (110); The right ejection group comprises a right ejector pin (210) movable in the left and right directions, a second conical section (211) with a smaller left side and a larger right side is arranged on the left side of the right ejector pin (210), and a clamping space is formed between the first conical section (111) and the second conical section (211).

2. The circular mold coaxial positioning tool according to claim 1, characterized in that: The right pressing group further comprises a pressing seat (220), a rotating sleeve (230) and a rotating rod (240); the rotating sleeve (230) is slidably connected to the pressing seat (220) along the left-right direction; the rotating rod (240) is rotatably connected to the right side of the pressing seat (220); the rotating rod (240) and the rotating sleeve (230) are connected to each other via threads; the left end of the rotating sleeve (230) presses against the right end of the right ejector pin (210).

3. The circular mold coaxial positioning tool according to claim 2, characterized in that: A limited segment is provided on the inner side of the left end of the rotating sleeve (230), and the inner diameter of the limited segment gradually decreases from left to right. A mounting segment (212) is provided on the right end of the right ejector pin (210), and the mounting segment (212) is connected in cooperation with the limited segment.

4. The circular die coaxial positioning tool according to claim 2, characterized in that: A slot hole (221) is provided on the outer side of the left end of the pressing seat (220), and the slot hole (221) extends to the left end of the pressing seat (220). The pressing seat (220) is provided with locking sleeves (222) at positions on both sides of the slot hole (221), and a locking piece is provided between the two locking sleeves (222).

5. The circular die coaxial positioning tool according to claim 4, characterized in that: The locking member comprises a locking bolt (223) and a locking nut (224); the locking bolt (223) passes through the two locking sleeves (222) and is connected to the locking nut (224).

6. The circular mold coaxial positioning tool according to claim 5, characterized in that: The end of the locking bolt (223) is connected to a turning handle (225).

7. The circular mold coaxial positioning tool according to claim 4, characterized in that: A convex pattern is arranged on the inner side of the left end portion of the pressing seat (220), and a plurality of the convex patterns are arranged axially along the rotating sleeve (230).

8. The circular mold coaxial positioning tool according to claim 2, characterized in that: The right end of the rotating rod (240) is connected to a rotating wheel (241).

9. The circular mold coaxial positioning tool according to claim 2, characterized in that: An adjusting slider (226) is provided on the bottom side of the pressing seat (220), and a slider nut is connected between the adjusting slider (226) and the pressing seat (220).

10. The circular mold coaxial positioning tool according to claim 1, characterized in that: The left ejection group comprises a three-jaw chuck (120), and the three-jaw chuck (120) clamps the left end of the left ejector pin (110).

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