Multi-connected V-shaped clamp with adjustable stroke

Abstract

The multi-connected stroke-adjustable V-shaped clamp comprises a horizontally-arranged outer frame and an inner clamping plate connected to the outer frame in a sliding mode, the outer frame comprises two oppositely-arranged side walls and a bottom wall connected to one ends of the two side plates, and the two side walls and the bottom wall define an open groove structure; a plurality of V-shaped grooves are formed in the end face, close to the bottom wall, of the inner clamping plate, the V-shaped grooves are formed in the vertical direction, and a plurality of fastening bolts right facing the V-shaped grooves are arranged in the bottom wall. The clamping device is simple and practical, a plurality of to-be-ground workpieces can be clamped at the same time, the production efficiency is improved, the distance between the fastening bolt and the inner clamping plate is adjustable, the clamping device is suitable for clamping the to-be-ground workpieces of different specifications, and the application range is widened.

Description

Technical Field

[0001] This application relates to the technical field of cold heading die processing, and particularly relates to a multi-unit adjustable stroke V-shaped fixture. Background Art

[0002] For end face grinding of punching rods in cold heading dies, etc., a surface grinder is required. For processing a large number of the same batch / different batch orders, the common vise fixtures on the market can only perform single-piece clamping, can only process one by one or require multiple fixtures, resulting in very low efficiency. Moreover, different specifications of workpieces require different specifications of fixtures, increasing production costs. Therefore, improvements are needed. Summary of the Utility Model

[0003] The purpose of the present utility model is to provide a multi-unit adjustable stroke V-shaped fixture to overcome the deficiencies in the prior art.

[0004] To achieve the above purpose, the present utility model provides the following technical solutions:

[0005] An embodiment of the present application discloses a multi-unit adjustable stroke V-shaped fixture for clamping a workpiece on a surface grinder, including a horizontally placed outer frame and an inner clamping plate slidably connected to the outer frame. The outer frame includes two opposite side walls and a bottom wall connected to one end of the two side plates. The two side walls and the bottom wall enclose an open groove structure. The end face of the inner clamping plate close to the bottom wall is provided with a plurality of V-shaped grooves, and the plurality of V-shaped grooves are arranged in the vertical direction. A plurality of set screws corresponding to the V-shaped grooves are arranged in the bottom wall.

[0006] Further, in the above multi-unit adjustable stroke V-shaped fixture, a plurality of sliding grooves are respectively arranged on the inner sides of the two side walls, and the plurality of sliding grooves are arranged in the vertical direction. Two ends of the inner clamping plate respectively protrude with a plurality of sliding strips corresponding to the sliding grooves.

[0007] Further, in the above multi-unit adjustable stroke V-shaped fixture, the sliding strip and the inner clamping plate are integrally formed.

[0008] Further, in the above multi-unit adjustable stroke V-shaped fixture, a plurality of threaded through holes corresponding to the set screws are arranged in the bottom wall.

[0009] Further, in the above multi-unit adjustable stroke V-shaped fixture, the two side walls and the bottom wall are integrally formed.

[0010] Further, in the above multi-unit adjustable stroke V-shaped fixture, the two side walls and the bottom wall are of a split structure.

[0011] Compared with the prior art, the advantages of the present utility model are as follows: The multi-assembly adjustable-stroke V-shaped fixture has a simple structure. The V-shaped groove of the inner clamping plate contacts the workpiece. With the pressure applied by the set bolts, it contacts in multiple directions, has a large contact area, can apply a greater clamping force, and can clamp multiple workpieces simultaneously, greatly improving production efficiency. The distance between the set bolts and the inner clamping plate is adjustable, suitable for clamping workpieces to be ground with different specifications, expanding the application range. The chute and the slide bar form a mortise and tenon structure, which is firm in structure, light in material, saves the cost of manufacturing the fixture, and does not require calibration of the reference. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the drawings in the following description are only some embodiments recorded in the present application. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0013] Figure 1 The following shows a schematic structural diagram of a multi-assembly adjustable-stroke V-shaped fixture in a specific embodiment of the present utility model.

[0014] Figure 2 The following shows a schematic structural diagram of a multi-assembly adjustable-stroke V-shaped fixture in another specific embodiment of the present utility model.

[0015] Figure 3 The following shows a schematic structural diagram of a multi-assembly adjustable-stroke V-shaped fixture in yet another specific embodiment of the present utility model. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0016] The following will combine the drawings in the embodiments of the present utility model to describe the technical solutions in the embodiments of the present utility model in detail. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all of the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the scope of protection of the present utility model.

[0017] In the description of the present utility model, it should be noted that the orientation or positional relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present utility model. In addition, the terms "first", "second", and "third" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0018] In the description of the present utility model, it should be noted that unless otherwise clearly specified and defined, the terms "installation", "connection", and "coupling" shall be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or an integral connection; it may be a mechanical connection or an electrical connection; it may be a direct connection or an indirect connection through an intermediate medium, and it may be the communication inside two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0019] Refer Figures 1 to 3 As shown, a multi-assembly adjustable stroke V-shaped fixture for clamping workpieces on a surface grinder includes a horizontally placed outer frame 1 and an inner clamping plate 2 slidably connected to the outer frame 1. The outer frame 1 includes two opposite side walls 11 and a bottom wall 12 connected to one end of the two side plates. The two side walls 11 and the bottom wall 12 enclose an open groove structure. A plurality of V-shaped grooves 21 are provided in the end face of the inner clamping plate 2 close to the bottom wall 12. The plurality of V-shaped grooves 21 are arranged in the vertical direction, and a plurality of set bolts 3 are provided in the bottom wall 12 opposite to the V-shaped grooves 21.

[0020] In this technical solution, the outer frame and the inner clamping plate are made of materials that can be adsorbed by the magnetic chuck of the surface grinder, and are adsorbed and fixed by the magnetic chuck of the surface grinder together with the workpiece to be ground, without external tooling, etc. The outer frame is a groove-shaped structure and is vertically arranged, that is, the bottom wall and the two side walls of the outer frame are both vertically arranged. There is a spaced arrangement between the inner clamping plate and the bottom wall. The V-shaped groove is a 90° open groove and penetrates the inner clamping plate in the vertical direction, and its opening direction faces the bottom wall (the angular bisecting plane of the V-shaped groove is perpendicular to the bottom wall). The depths of adjacent V-shaped grooves are the same or different, and workpieces to be ground of the same or different specifications can be clamped. The set bolts are horizontally arranged, and the central axis thereof is in the angular bisecting plane of the V-shaped groove. The workpiece to be ground with a cylindrical outer contour is vertically placed in the V-shaped groove, and the set bolt is tightened to completely clamp the workpiece to be ground. Among them, the heights of the outer frame and the inner clamping plate are both smaller than the length of the workpiece to be ground to avoid interfering with the normal progress of the grinding process; this multi-assembly adjustable stroke V-shaped fixture is simple and practical, can clamp multiple workpieces to be ground at the same time, improves production efficiency, and the distance between the set bolt and the inner clamping plate is adjustable, which is suitable for clamping workpieces to be ground of different specifications and expands the application range.

[0021] Exemplarily, refer to Figures 1 to 3 As shown, a plurality of chutes 111 are respectively provided on the inner sides of the side walls 11. The plurality of chutes 111 are arranged in the vertical direction, and a plurality of sliding strips 22 corresponding to the chutes 111 respectively protrude from both ends of the inner clamping plate 2.

[0022] In this technical solution, a number of equally spaced chutes are machined on the inner side of the side wall (the side surface that fits against the inner splint). Through machining, the accuracy of the chutes and the relative position accuracy between the chutes are ensured. At both ends of the inner splint, sliding bars that slide in the chutes protrude respectively. A mortise and tenon structure is formed between the chutes and the sliding bars, with a firm structure, light materials, and cost savings in manufacturing jigs. There is no need to adjust the reference. When the adjustment range of the set screw cannot meet the clamping requirements of the workpiece to be ground, the distance between the set screw and the inner splint is further adjusted by replacing the chute corresponding to the sliding bar, so as to meet the clamping requirements.

[0023] Exemplarily, referring to Figures 1 to 3 As shown, the sliding bar 22 and the inner splint 2 are integrally formed.

[0024] In this technical solution, the accuracy of the sliding bars and the relative position progress between the sliding bars are ensured through machining accuracy, thereby improving the matching accuracy between the sliding bars and the chutes, and there is no need to re-adjust the reference.

[0025] Exemplarily, referring to Figures 1 to 3 As shown, a number of threaded through holes 121 corresponding to the set screws 3 are arranged in the bottom wall 12.

[0026] In this technical solution, the set screw is selected as a conventional internal hexagonal socket head cap screw and is adjustably connected to the bottom wall through the threaded through hole. A conventional buffer pad can also be arranged at the cylindrical end of the set screw.

[0027] Exemplarily, referring to Figure 1 and Figure 2 As shown, the two side walls 11 and the bottom wall 12 are integrally formed.

[0028] In this technical solution, the outer frame is processed from a whole piece of steel plate, etc. The opening groove and the chute are both machined to ensure accuracy, and the integral formation of the side wall and the bottom wall ensures the connection strength.

[0029] Exemplarily, referring to Figure 3 As shown, the two side walls 11 and the bottom wall 12 are of a split structure.

[0030] In this technical solution, the side wall and the bottom wall are processed separately and spliced together by bolts, etc., reducing the processing materials and difficulty and lowering the production cost.

[0031] In summary, the multi-unit adjustable-stroke V-type fixture has a simple structure. The V-shaped groove of the inner clamping plate contacts the workpiece. With the pressure applied by the set bolts, it contacts in multiple directions, has a large contact area, can apply a greater clamping force, and can clamp multiple workpieces simultaneously, greatly improving production efficiency. The distance between the set bolts and the inner clamping plate is adjustable, suitable for clamping workpieces to be ground with different specifications, expanding the application range. The chute and the sliding strip form a mortise and tenon structure, which is firm in structure, light in material, saves the cost of manufacturing the fixture, and does not require calibration of the reference.

[0032] It should be noted that in this article, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the term "comprising", "including" or any other variant thereof is intended to cover non-exclusive inclusion, so that a process, method, article or device comprising a series of elements not only includes those elements, but also includes other elements not expressly listed, or also includes elements inherent to such process, method, article or device. Without further limitation, an element defined by the statement "comprising a..." does not exclude the existence of additional identical elements in the process, method, article or device comprising the element.

[0033] The above are only specific embodiments of the present application. It should be pointed out that for those of ordinary skill in the art, without departing from the principle of the present application, several improvements and refinements can be made, and these improvements and refinements should also be regarded as the protection scope of the present application.

Claims

1. A multi-mounted V-shaped clamp with adjustable stroke, used for clamping workpieces on a surface grinder, characterized in that: It includes a horizontally placed outer frame and an inner clamping plate slidably connected to the outer frame, the outer frame includes two oppositely arranged side walls and a bottom wall connected to one end of the two side plates, the two side walls and the bottom wall form an open groove structure, the end surface of the inner clamping plate close to the bottom wall is provided with a plurality of V-shaped grooves, the plurality of V-shaped grooves are arranged in the vertical direction, and the bottom wall is provided with a plurality of fixing bolts facing the V-shaped grooves.

2. The multi-mounted adjustable stroke V-shaped clamp according to claim 1, characterized in that: A plurality of slide grooves are respectively arranged on the inner sides of the two side walls, and the plurality of slide grooves are arranged along the vertical direction. A plurality of slide bars corresponding to the slide grooves are respectively protruded from the two ends of the inner clamping plate.

3. The multi-mounted adjustable stroke V-shaped clamp according to claim 2, characterized in that: The slide bar and the inner clamping plate are integrally formed.

4. The multi-mounted adjustable stroke V-shaped clamp according to claim 1, characterized in that: The bottom wall is provided with a plurality of threaded through holes respectively corresponding to the fixing bolts.

5. The multi-mounted adjustable stroke V-shaped clamp according to any one of claims 1 to 4, characterized in that: The two side walls and the bottom wall are integrally formed.

6. The multi-mounted adjustable stroke V-shaped clamp according to any one of claims 1 to 4, characterized in that: The two side walls and the bottom wall are split structures.

Images