Positioning clamp for cutting

Abstract

The utility model relates to the technical field of clamps, and discloses a cutting positioning clamp which comprises a base, a connecting ring is arranged in the base, a plurality of ejector rods are fixedly connected to the top end of the connecting ring, the top ends of the ejector rods penetrate through the base, and a plurality of push plates are rotationally connected to the outer side of the connecting ring. A plurality of vertical plates are fixedly connected to the outer side of the top end of the base, transverse plates penetrate through the lower portions in the vertical plates, the top ends of the push plates are rotationally connected to the bottom ends of the transverse plates, electric push rods are fixedly connected to the middles of the sides, close to the connecting rods, of the vertical plates, and arc-shaped clamping plates are fixedly connected to the output ends of the electric push rods. According to the utility model, a cylindrical workpiece can be positioned and clamped through the arc-shaped clamping plate, and the workpiece is actively lifted along with the resetting of the arc-shaped clamping plate after the cutting is finished, so that the situation that the lifting operation of the workpiece cannot be finished only through the self weight change of the workpiece in cooperation with a spring under the condition that the partial cutting output is less is prevented.

Description

Technical Field

[0001] The utility model relates to the technical field of fixtures, in particular to a positioning fixture for cutting processing. Background Art

[0002] Cutting refers to the process of causing the tool and workpiece to slide relative to each other through relative motion, and then using the tool's geometry and material properties to remove excess parts from the workpiece surface, thereby obtaining a workpiece of the target shape and size. In order to prevent the workpiece from being displaced by force during the machining process, it is generally necessary to use a positioning fixture in conjunction with the tool to ensure the accuracy and quality of the cutting process.

[0003] After searching, the Chinese patent announcement number: CN220029391U discloses a cutting positioning device for mold processing, which relates to the field of mold processing technology, including a bracket, the upper surface of the bracket is fixedly connected with four mounting plates, one side of the mounting plate is fixedly connected with two push rods, the output ends of the two push rods are fixedly connected with a clamping plate, the upper surface of the bracket is slidably connected with a body, one side of the clamping plate is in contact with the body, the upper surface of the bracket is provided with an ejection structure relative to the body, the ejection structure includes an inner groove, the inner groove is opened on the upper surface of the bracket, the inner wall of the inner groove is fixedly connected with a connecting plate, one side of the connecting plate is fixedly connected with two springs, the other side of the two springs is fixedly connected with a connecting plate. The end is fixedly connected with a top plate. This cutting positioning device for mold processing achieves the effect of automatically ejecting the main body after the clamping plate is positioned and cut, and solves the problem that the surface of the main body is relatively smooth after positioning and cutting, making it difficult for personnel to remove it from the surface of the support; however, the contraction of the spring in this application is achieved by the weight of the workpiece, and after the cutting process is completed, the spring's own elastic force is also used to push the workpiece away from the support. Therefore, for some workpieces with less cutting volume, the thrust generated by the spring contraction may be insufficient to push the processed workpiece away from the support. Therefore, there are certain conditions and restrictions when using it. In addition, when using the suction pipe and related components to suck the waste chips generated by the processing, a certain amount of energy is required. Utility Model Content

[0004] In order to make up for the above shortcomings, the utility model provides a positioning fixture for cutting processing, which aims to improve the problem in the prior art that the workpiece needs to be cut to a large extent when it is pushed away from the processing table by only contracting the spring, and an additional power source needs to be added when collecting waste chips, thereby increasing energy consumption.

[0005] In order to achieve the above object, the utility model discloses the following technical scheme: the positioning fixture of cutting processing, including base, the base top is passed through and is connected with the connecting rod, the connecting rod bottom fixedly connected with the spring, the spring bottom fixedly connected in the base inner bottom, the base is internally provided with the connecting ring, the connecting ring top fixedly connected with a plurality of top rod, a plurality of The top end of top rod all penetrates the base, the connecting ring outside is rotatably connected with a plurality of push board, the base top outside fixedly connected with a plurality of vertical plate, a plurality of The lower part of vertical plate all penetrates the horizontal plate, a plurality of The push board top all rotatably connected in the horizontal plate bottom, a plurality of The vertical plate near connecting rod one side middle part all fixedly connected with electric push rod, a plurality of Electric push rod output all fixedly connected with arc clamping plate.

[0006] Through the above technical scheme: can be fixed to various specifications of cylindrical workpiece, and guarantee that the workpiece of different degree cutting can be lifted away from the base after processing.

[0007] As a further description of the above technical scheme:

[0008] The base top is provided with a plurality of through grooves, a plurality of The inside of through groove all rotatably connected with the rotation plate, the connecting ring top fixedly connected with a plurality of U-shaped board, a plurality of The top of U-shaped board all abuts in the rotation plate bottom near connecting rod one side, a plurality of The U-shaped board all with top rod staggered setting.

[0009] Through the above technical scheme: can clean the scrap on the surface of base with the workpiece leaving the base, prevent scrap from accumulating and affect the positioning of subsequent workpiece clamping.

[0010] As a further description of the above technical scheme:

[0011] The connecting rod top fixedly connected with tray, the base top middle part is provided with recess, the tray is opposite recess.

[0012] Through the above technical scheme: can increase the support area, reduce the probability of deflection when workpiece moves, guarantee that workpiece can be effectively contacted with base.

[0013] As a further description of the above technical scheme:

[0014] A plurality of The outside of top rod all slidingly connected with the limiting ring, a plurality of The limiting ring top all fixedly connected in the base inner top.

[0015] Through the above technical scheme: can limit the movement direction of top rod, prevent top rod from shaking after separating from base.

[0016] As a further description of the above technical scheme:

[0017] Multiple said vertical plate inside both sides are penetrated by limiting rod, the limiting rod is fixedly connected with the arc-shaped clamping plate on both sides of the far end of the connecting rod.

[0018] Through the above technical scheme: can disperse the bending force of the horizontal plate and the electric push rod, ensure that the arc-shaped clamping plate only moves in horizontal direction.

[0019] As a further description of the above technical scheme:

[0020] Multiple said rotating plate bottom end is fixedly connected with the counterweight on one side of the connecting rod, and the baffle is fixedly connected on both sides in the through slot.

[0021] Through the above technical scheme: can drive the rotating plate to return to the initial position, and prevent the rotating plate from rotating excessively.

[0022] The utility model has the following beneficial effects:

[0023] 1. In the utility model, the connecting ring, the jacking rod, the push plate, the horizontal plate, the electric push rod and the arc-shaped clamping plate can be used for positioning and clamping cylindrical workpieces of various specifications, and the workpiece is lifted automatically after cutting, along with the resetting of the arc-shaped clamping plate, so that the workpiece can be lifted by the spring in the case of small cutting amount, and the power output by the electric push rod is fully utilized.

[0024] 2. In the utility model, the through slot, the rotating plate and the U-shaped plate can clean most of the debris generated during machining from the surface of the base, prevent the debris from pouring into the area where the workpiece is located after a large amount of accumulation, and avoid affecting the normal positioning and clamping of the workpiece and machining, and the cleaning process does not require manual intervention, and an additional power source can be avoided. In addition, when the U-shaped plate is not in contact with the rotating plate, the rotating plate can cooperate with the base to stably support the workpiece. BRIEF DESCRIPTION OF DRAWINGS

[0025] Figure 1 It is a front view of the positioning clamp for cutting machining provided by the utility model;

[0026] Figure 2 It is a top view of the positioning clamp for cutting machining provided by the utility model;

[0027] Figure 3 It is a bottom view of the positioning clamp for cutting machining provided by the utility model;

[0028] Figure 4 It is a sectional view of the base of the positioning clamp for cutting machining provided by the utility model.

[0029] LEGEND:

[0030] 1, base; 2, connecting rod; 3, spring; 4, connecting ring; 5, top rod; 6, push plate; 7, vertical plate; 8, horizontal plate; 9, electric push rod; 10, arc-shaped clamping plate; 11, through groove; 12, rotating plate; 13, U-shaped plate; 14, tray; 15, recess; 16, limiting ring; 17, limiting rod; 18, counterweight; 19, baffle. DETAILED DESCRIPTION

[0031] The technical solutions in the embodiments of the utility model will be apparently and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the utility model.

[0032] Referring to Figures 1-4 An embodiment provided by the utility model: the positioning fixture of cutting processing, including base 1, the connecting rod 2 is penetrated in the top of base 1, the spring 3 is fixedly connected at the bottom end of connecting rod 2, the bottom end of spring 3 is fixedly connected in the bottom end of base 1, the connecting ring 4 is arranged in the inside of base 1, the multiple top rods 5 are fixedly connected at the top end of connecting ring 4, the multiple top rods 5 top ends are all penetrated in base 1, the multiple push plates 6 are rotatably connected on the outside of connecting ring 4, the multiple vertical plates 7 are fixedly connected on the outside of the top end of base 1, the multiple horizontal plates 8 are all penetrated in the lower part of multiple vertical plates 7, the multiple push plates 6 top ends are all rotatably connected in the bottom end of horizontal plate 8, the multiple electric push rods 9 are fixedly connected in the middle part of the side of multiple vertical plates 7 close to connecting rod 2, the arc-shaped clamping plates 10 are fixedly connected in the output end of multiple electric push rods 9, the tray 14 is fixedly connected in the top end of connecting rod 2, the recess 15 is set up in the middle part of the top end of base 1, the tray 14 is opposite to recess 15, the multiple limiting rings 16 are all slidably connected in the outside of multiple top rods 5, the multiple limiting rings 16 top ends are all fixedly connected in the top end of base 1, the multiple limiting rods 17 are all penetrated in the inside of multiple vertical plates 7 two sides, the limiting rods 17 one end close to connecting rod 2 are respectively fixedly connected in the two sides of the far end of multiple arc-shaped clamping plates 10;

[0033] Specifically, the connecting rod 2 can provide a reference point when placing the workpiece, avoiding the workpiece from deviating too much from the center of the base 1. Then, the weight of the workpiece can make the connecting rod 2 overcome the pushing force of the spring 3 and gradually move down with the workpiece. When the workpiece contacts the uniformly distributed top rods 5, the arc-shaped clamping plates 10 are pushed by the electric push rods 9 to approach the workpiece from all around. At the same time, the horizontal plates 8 connected with the arc-shaped clamping plates 10 can also move. Since the pushing plates 6 are connected with the horizontal plates 8 and the connecting ring 4 at both ends and the length of the pushing plates 6 is fixed, as the horizontal plates 8 and the arc-shaped clamping plates 10 approach the workpiece, the uniformly distributed pushing plates 6 can rotate to exert a downward pushing force on the connecting ring 4, so that the top rods 5 uniformly distributed on the surface of the connecting ring 4 can move down into the inside of the base 1. At this time, the workpiece can gradually contact the base 1. When the connecting ring 4 and the top rods 5 move down a certain distance, the arc-shaped clamping plates 10 can be in close contact with the workpiece under the pushing of the electric push rods 9, thereby completing the positioning and clamping of cylindrical workpieces of various specifications. Conversely, after the cutting process is completed, the horizontal plates 8 and the arc-shaped clamping plates 10 move away from the workpiece driven by the electric push rods 9, and the pushing plates 6 connected with the horizontal plates 8 can also reverse to drive the uniformly distributed top rods 5 to move up through the connecting ring 4, thereby achieving the effect of lifting the workpiece from the surface of the base 1, so as to facilitate the subsequent workers to transfer the workpiece. The movement of the top rods 5 and the arc-shaped clamping plates 10 is powered by the electric push rods 9, so as to save energy while ensuring the reliability of the movement of the workpiece, preventing the workpiece transferred by the spring 3 from moving up normally after small-amplitude cutting process only by the elastic force of the spring 3 itself, and achieving the purpose of improving the use range of the device. In addition, the use of the tray 14 can increase the contact area between the workpiece and the connecting rod 2, preventing the workpiece from rolling down when moving down due to the small supporting surface. The use of the groove 15 opposite to the tray 14 can achieve the purpose of accommodating the tray 14, thereby ensuring that the bottom surface of the workpiece can effectively contact the base 1, preventing the workpiece from shaking obviously when being stressed during cutting. At the same time, the use of the limiting ring 16 can limit the movement direction of the top rods 5 when the top rods 5 move down and separate from the base 1, preventing the top rods 5 from being unable to re-enter the reserved channel in the base 1 when returning due to shaking. The use of the limiting rod 17 can further support and guide the arc-shaped clamping plates 10 and disperse the bending force borne by the horizontal plates 8 and the electric push rods 9. In addition, under the action of the uniformly distributed top rods 5, the connecting ring 4 can move up and down along the vertical direction to prevent the connecting ring 4 from colliding with the spring 3 inside.

[0034] Referring to Figure 2 and Figure 4 , a plurality of through grooves 11 are formed at the top end of the base 1, and a plurality of rotating plates 12 are rotatably connected inside the plurality of through grooves 11. A plurality of U-shaped plates 13 are fixedly connected to the top end of the connecting ring 4, and the top end of each U-shaped plate 13 abuts against the bottom end of the rotating plate 12 near the connecting rod 2. The plurality of U-shaped plates 13 are arranged in a staggered manner with the top rods 5. A counterweight 18 is fixedly connected to the bottom end of each rotating plate 12 near the connecting rod 2. A baffle 19 is fixedly connected to both sides inside the plurality of through grooves 11.

[0035] Specifically, the U-shaped plate 13 can be lifted by the connecting ring 4 when the electric push rod 9 drives the arc-shaped clamping plate 10, the electric push rod 9, the push plate 6, etc. to return to the initial position, and after the U-shaped plate 13 is lifted by a certain distance, it can contact the side of the connecting rod 2 close to the bottom surface of the rotating plate 12, thereby pushing the rotating plate 12 to rotate by a certain angle around the middle part of its two sides in contact with the through slot 11. At this time, most of the debris generated and fallen during the cutting process can enter the inside of the base 1 along the surface of the rotating plate 12 through the through slot 11 after the rotating plate 12 rotates, and then can fall into the box or chute below the base 1 under the action of gravity for subsequent centralized processing. At the same time, with the cleaning of the debris, it can prevent the debris from sliding to the area where the workpiece is located after a large amount of debris accumulates, thereby avoiding the debris from moving to the middle area of the top surface of the base 1 to hinder the subsequent contact between the workpiece and the base 1, preventing the stability of the workpiece from being affected during the subsequent cutting process. In addition, the U-shaped plate 13 and the top rod 5 are arranged in a staggered manner to avoid mutual interference, and the counterweight 18 can drive the rotating plate 12 to return to the initial position when the U-shaped plate 13 is lowered with the connecting ring 4, thereby cooperating with the baffle 19 located inside the through slot 11 close to one side of the connecting rod 2 to prevent the rotating plate 12 from over-reversing.

[0036] Working principle: the workpiece to be processed is placed on the surface of the tray 14, the workpiece pushes the tray 14 and the connecting rod 2 to overcome the thrust of the spring 3 and moves downward, until the bottom surface of the workpiece contacts the top rod 5, at this time the position of the workpiece can be adjusted according to the degree of deviation to ensure that each top rod 5 is in contact with the workpiece, preventing the workpiece from deviating from the center area and being pushed by the arc-shaped clamping plate 10 in the subsequent process, and the workpiece is not supported evenly by the top rod 5, and then the electric push rod 9 is started, so that the arc-shaped clamping plate 10 can be supported by the limiting rod 17 and the horizontal plate 8 to approach the workpiece in the horizontal direction, and the push plate 6 connected with the horizontal plate 8 can rotate to a certain extent when the horizontal plate 8 moves, so that the arc-shaped clamping plate 10 approaches the workpiece while applying a downward pushing force to the connecting ring 4, and then the uniformly distributed top rod 5 can move downward along the base 1 and the limiting ring 16, ensuring that the bottom of the workpiece can be in effective contact with the top surface of the base 1, further, each arc-shaped clamping plate 10 can be in contact with the workpiece under the pushing of the electric push rod 9 to complete positioning and clamping, and when the cutting process is completed, the electric push rod 9, the horizontal plate 8, the arc-shaped clamping plate 10, the push plate 6 and the connecting ring 4 return to the initial position, the top rod 5 can move upward along the limiting ring 16 to pass through the base 1 and contact the workpiece again, so as to lift the workpiece away from the base 1, facilitating the subsequent worker to move the workpiece, and the power of the top rod 5 is provided by the electric push rod 9, so that the workpiece can be lifted away from the processing area when the workpiece only needs to be cut slightly, and the spring 3 cannot push the workpiece away from the processing area, and the debris generated during cutting can fall outside the contact area between the workpiece and the base 1, and when the workpiece is lifted by the top rod 5 and the connecting ring 4, the U-shaped plate 13 connected with the connecting ring 4 can gradually approach the rotating plate 12 and push the rotating plate 12 to rotate around the contact area between the two sides of the rotating plate 12 and the through slot 11, so that most of the debris can move away from the top surface area of the base 1 along the surface of the rotating plate 12, preventing the debris from gathering and approaching the area where the workpiece is located, thereby preventing the normal clamping and processing of the workpiece, and the debris can be cleaned simultaneously with the upward movement of the connecting ring 4 without manual intervention or the need for additional power sources, achieving the purpose of saving energy, in addition, the through slot 11 and the top rod 5 are distributed in a staggered manner to prevent interference between them, and the debris entering the interior of the base 1 can continue to move downward under the action of gravity until it falls into the corresponding collection box or channel for subsequent centralized processing.

[0037] Finally, it should be pointed out that: the above only describes preferred embodiments of the present application and is not intended to limit the present application, although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent replacement for some technical features, any modification, equivalent replacement, improvement, etc. within the spirit and principles of the present application shall be included in the protection scope of the present application.

Claims

1. A positioning fixture for cutting processing, comprising a base (1), characterized in that: The top of the base (1) is penetrated by a connecting rod (2), the bottom end of the connecting rod (2) is fixedly connected to a spring (3), the bottom end of the spring (3) is fixedly connected to the bottom end of the base (1), a connecting ring (4) is provided inside the base (1), the top of the connecting ring (4) is fixedly connected to a plurality of push rods (5), the top ends of the plurality of push rods (5) all penetrate the base (1), the outside of the connecting ring (4) is rotatably connected to a plurality of push plates (6), the outside of the top of the base (1) is fixedly connected to a plurality of vertical plates (7), the lower inner parts of the plurality of vertical plates (7) are penetrated by a horizontal plate (8), the top ends of the plurality of push plates (6) are rotatably connected to the bottom end of the horizontal plate (8), the middle part of the plurality of vertical plates (7) close to the connecting rod (2) is fixedly connected to an electric push rod (9), and the output ends of the plurality of electric push rods (9) are fixedly connected to an arc-shaped clamping plate (10).

2. The positioning fixture for cutting processing according to claim 1, characterized in that: The top of the base (1) is provided with a plurality of through slots (11), the interiors of the plurality of through slots (11) are rotatably connected to a rotating plate (12), the top of the connecting ring (4) is fixedly connected to a plurality of U-shaped plates (13), the tops of the plurality of U-shaped plates (13) are all in contact with the bottom of the rotating plate (12) near the side of the connecting rod (2), and the plurality of U-shaped plates (13) are all staggered with the top rod (5).

3. The positioning fixture for cutting processing according to claim 1, characterized in that: The top end of the connecting rod (2) is fixedly connected to a tray (14), a groove (15) is provided in the middle of the top end of the base (1), and the tray (14) faces the groove (15).

4. The positioning fixture for cutting processing according to claim 1, characterized in that: The outer sides of the plurality of push rods (5) are all slidably connected to the limiting ring (16), and the top ends of the plurality of limiting rings (16) are all fixedly connected to the inner top end of the base (1).

5. The positioning fixture for cutting processing according to claim 1, characterized in that: Limiting rods (17) are passed through both sides of the interior of the plurality of vertical plates (7), and the limiting rods (17) are fixedly connected to both sides of the ends away from the plurality of arc-shaped clamping plates (10) at one end close to the connecting rod (2).

6. The positioning fixture for cutting processing according to claim 2, characterized in that: The bottom ends of the plurality of rotating plates (12) are fixedly connected to a counterweight block (18) on one side close to the connecting rod (2), and the insides of the plurality of through slots (11) are fixedly connected to baffles (19) on both sides.

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