Multi-station centering tool

Abstract

The utility model relates to the field of tool clamps, and particularly discloses a multi-station centering tool which comprises a base, a positioning groove is formed in the base, a clamping assembly is installed in the positioning groove and comprises a base body, an installation rod and a movable clamping block, and the installation rod is sleeved with a pressing block with a conical surface; the tool is provided with a plurality of stations, a plurality of parts can be clamped at the same time for machining, a water jacket can be centered according to the coordinate position of a water jacket hole when a mounting rod penetrates through the water jacket hole and is pressed downwards through a pressing block with a conical surface, the side portion of the part is clamped through a clamping block with a clamping opening, and axial swing of the part is prevented; therefore, the hole site can be accurately machined, and the machining precision is effectively improved.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the field of frock clamp, especially relates to a multi-station centering frock. BACKGROUND

[0002] The top surface and the bottom surface of the water jacket part need to be milled flat, and the top surface also needs to be provided with mounting holes, and the middle part of the water jacket is provided with a through water jacket hole. When the water jacket is processed, if a common frock is used for clamping, the clamping efficiency will be affected, and when the top surface and the mounting holes are processed, the relative coordinates between the water jacket hole need to have certain requirements, and it is difficult to align the center point coordinates of the water jacket hole by using a common clamp, so that the top surface and the mounting holes are accurately processed.

[0003] The disclosure of the above background art content is only used to assist in understanding the utility model concept and technical scheme of the utility model, and it does not necessarily belong to the prior art of the present patent application. In the absence of explicit evidence that the above content has been disclosed on the filing date of the present patent application, the above background art should not be used to evaluate the novelty and inventiveness of the present application. UTILITY MODEL CONTENT

[0004] The utility model aims at providing a multi-station centering frock, so as to overcome the defects of low clamping efficiency and poor alignment of the center point coordinates of the existing frock when processing the water jacket part, and inaccurate processing precision.

[0005] In order to achieve the above-mentioned purpose, the utility model provides a multi-station centering frock, which comprises a base, a plurality of stations are arranged on the base, a positioning groove is arranged on the station, a clamping assembly is arranged on the station, the clamping assembly comprises a seat body and a mounting rod, the seat body is fixedly connected with the base, a mounting hole is arranged at the top of the seat body, one end of the mounting rod is detachably connected with the mounting hole, a first spring and a pressing block are sleeved on the mounting rod, the first spring is located between the other end of the mounting rod and the pressing block, and a conical surface is arranged at the bottom of the pressing block; an elastic clamping block is arranged on the side of the seat body, one end of the elastic clamping block is elastically close to the positioning groove, and a clamping hole is arranged at one end of the elastic clamping block.

[0006] Preferably, in the above technical scheme, the bottom of the mounting hole is provided with a pin hole, one end of the mounting rod is provided with a stud, and the stud is matched with the pin hole.

[0007] Preferably, in the above technical scheme, the inner wall of the mounting hole is provided with an internal thread, and the outer periphery of one end of the mounting rod is provided with an external thread matched with the internal thread.

[0008] Preferably, in the above technical scheme, the other end of the mounting rod is provided with a chuck, and the end of the first spring abuts against the chuck.

[0009] Preferably, the chuck is provided with a rotating piece which is perpendicular to the chuck.

[0010] Preferably, the positioning groove is in arc structure on one side and the bayonet.

[0011] Preferably, the seat body is provided with an insertion hole on the side, the other end of the movable clamping block is inserted into the insertion hole, and a second spring is arranged between the movable clamping block and the bottom of the insertion hole.

[0012] Preferably, a sliding groove is arranged at the insertion hole, and a sliding pin is arranged on the movable clamping block, the sliding pin can be clamped in the sliding groove and slide along the sliding groove.

[0013] Preferably, a detachable blocking ring is arranged at the insertion hole, the movable clamping block can pass through the middle of the blocking ring, and the blocking ring can shield the sliding pin to prevent the sliding pin from falling out of the sliding groove.

[0014] Preferably, a plurality of weight reduction holes are arranged between the stations.

[0015] Compared with the prior art, the utility model has the beneficial effects that:

[0016] 1. The multi-station centering tool in the utility model is provided with a plurality of stations, can clamp a plurality of parts for machining at the same time, and can center the water jacket at the coordinate position of the water jacket hole when the installation rod passes through the water jacket hole, and can prevent the axial swing of the column part through the clamping of the clamping block with the bayonet on the side of the column part, so that the hole position can be machined more accurately, and the machining precision is effectively improved.

[0017] 2. The first spring in the utility model can keep the pressing block in a pressing state and maintain a certain clamping force when the installation rod is tightened, so as to prevent loosening.

[0018] 3. The bottom of the installation hole is provided with a pin hole, and the installation rod is provided with a column pin at one end, because the movable clamping block pushes the workpiece to one side to cause the water jacket hole to deviate, so when the installation rod is installed, the column pin can be inserted into the pin hole, and the position of the workpiece is returned to install, so that the installation of the installation rod is more accurate and can also prevent thread damage. BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1 It is a structure diagram of the multi-station centering tool.

[0020] Figure 2is the structure diagram of the seat body.

[0021] Figure 3 is the structure diagram of the seat body without the blocking ring.

[0022] Figure 4 is the structure diagram of the mounting rod.

[0023] Figure 5 is the structure diagram of the multi-station centering tool after clamping the water jacket.

[0024] Main figure mark explanation:

[0025] 100-base, 110-positioning groove, 120-weight reduction hole;

[0026] 200-clamping assembly, 210-seat body, 211-mounting hole, 212-pin hole, 213-socket, 214-slotted guide, 220-mounting rod, 221-pintle, 222-chuck, 223-rotary piece, 230-first spring, 240-pressing block, 241-taper surface, 250-movable clamping block, 251-clamp, 252-sliding pin, 260-blocking ring;

[0027] 300-water jacket. DETAILED DESCRIPTION

[0028] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0029] In the description of the present application, it should be noted that the orientations or positional relationships indicated by the terms "center", "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "top", "bottom", "top surface", "bottom surface", "inner", "outer", "inner side", "outer side" and the like are based on the orientations or positional relationships shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application.

[0030] In the description of this invention, "several" means one or more, "multiple" means two or more, "greater than," "less than," and "exceeding" are understood to exclude the stated number, while "above," "below," and "within" are understood to include the stated number. Where the terms "first," "second," and "third" are used for descriptive purposes and to distinguish technical features, they should not be construed as indicating or implying relative importance, or implicitly indicating the number of indicated technical features, or implicitly indicating the sequential relationship of the indicated technical features.

[0031] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "setting" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances. The embodiments of this utility model will now be described based on its overall structure.

[0032] like Figures 1 to 4 As shown, the multi-station centering fixture in this embodiment includes: a base 100, a positioning groove 110, a weight reduction hole 120, a clamping assembly 200, a seat 210, a mounting hole 211, a pin hole 212, a socket 213, a sliding groove 214, a mounting rod 220, a pin 221, a chuck 222, a rotating plate 223, a first spring 230, a pressure block 240, a conical surface 241, a movable locking block 250, a locking slot 251, a sliding pin 252, and a retaining ring 260.

[0033] The base 100 is provided with a plurality of work stations, and a positioning groove 110 is formed in each work station. The positioning groove 110 is composed of two parts, and the two parts of the positioning groove 110 are matched with the bottom surface profile of the water jacket 300. The opposite ends of the two parts of the positioning groove 110 are provided with a circular arc profile. A clamping assembly 200 is installed on each work station. The clamping assembly 200 comprises a seat body 210 and a mounting rod 220. A recess is formed in the base 100, and a screw hole is formed in the recess. The bottom of the seat body 210 is clamped into the recess. A through pin hole is formed through the top and bottom of the seat body 210. The bottom of the seat body 210 is clamped in the recess. A screw passes through the through pin hole and is threadedly connected with the screw hole, so as to fix the seat body 210 on the base 100. An installation hole 211 is formed in the top of the seat body 210. A pin hole 212 is formed in the bottom of the installation hole 211. The end face of one end of the mounting rod 220 is provided with a column pin 221 extending outward. The column pin 221 is matched with the pin hole 212 and can be inserted into the pin hole 212. The inner wall of the installation hole 211 is provided with an internal thread. The outer periphery of one end of the mounting rod 220 is provided with an external thread matched with the internal thread. The other end of the mounting rod 220 is provided with a chuck 222. The mounting rod 220 is sleeved with a first spring 230 and a pressing block 240. The first spring 230 is located between the other end of the mounting rod 220 and the pressing block 240. The end of the first spring 230 abuts against the bottom surface of the chuck 222 and the top surface of the pressing block 240. The bottom of the pressing block 240 is provided with a tapered surface 241. A rotating piece 223 is fixedly welded on the chuck 222. The rotating piece 223 is perpendicular to the chuck 222, and the edge of the rotating piece 223 is in a circular arc structure. A socket 213 is formed in the side of the seat body 210. The cross section of the socket 213 is rectangular. One end of a movable clamping block 250 is provided with a circular arc-shaped clamping hole 251. The other end of the movable clamping block 250 is inserted into the socket 213 and can slide along the socket 213. A second spring is installed between the movable clamping block 250 and the bottom of the socket 213. The second spring can drive one end of the movable clamping block 250 to elastically approach the positioning groove 110. A sliding groove 214 is formed at the socket 213. The sliding groove 214 is perpendicular to the plane where the mouth of the socket 213 is located. A sliding pin 252 is installed on the movable clamping block 250. The sliding pin 252 can be clamped in the sliding groove 214 and slide along the sliding groove 214.

[0034] In addition, a retaining ring 260 is also installed at the socket 213. The retaining ring 260 is detachably installed on the side of the seat body 210 by a screw. The retaining ring 260 is a rectangular ring structure. The movable clamping block 250 can pass through the middle of the retaining ring 260. The retaining ring 260 can shield the sliding pin 252 to limit the sliding pin 252 from falling out of the sliding groove 214.

[0035] In addition, a weight reduction hole 120 is formed through the top and bottom surfaces of the base 100. The weight reduction hole 120 is located between each work station.

[0036] Next, the use method of the multi-station centering tool in the embodiment is described in detail, so that those skilled in the art can better understand the utility model:

[0037] As shown in Figure 5 The water jacket 300 is provided with a water jacket 300 hole in the center, and the water jacket 300 hole penetrates the top and bottom of the water jacket 300. When the tool is used to clamp the water jacket 300, first, the bottom surface of the water jacket 300 is placed in the positioning groove 110, and in the process of placing, the inner side of the water jacket 300 abuts against the clamping hole 251 of the movable clamping block 250, so that the movable clamping block 250 is clamped on the inner side of the water jacket 300 and has an outward pushing force; then, the mounting rod 220 with the first spring 230 and the pressing block 240 is passed through the water jacket 300 hole, the side of one end of the column pin 221 is inserted into the pin hole 212 first, then the mounting rod 220 is moved in the direction opposite to the extension direction of the movable clamping block 250, so that the water jacket 300 is centered, then the column pin 221 is inserted into the pin hole 212, and the mounting rod 220 is tightened, at this time, the conical surface 241 at the bottom of the pressing block 240 can be pressed into the water jacket 300 hole and the first spring 230 is compressed by the chuck 222 to press the pressing block 240 against the top surface of the water jacket 300, and the clamping is completed; the structure of the pressing block 240 and the column pin 221 of the mounting rod 220 can ensure that the water jacket 300 hole coincides with the center of coordinates when the water jacket 300 is clamped, the clamping hole 251 of the movable clamping block 250 can contact the inner side of the water jacket 300 to limit the rotating direction of the water jacket 300, and prevent the water jacket 300 from rotating axially during processing.

[0038] In summary, the multi-station centering tool in the embodiment is provided with multiple stations, can clamp multiple parts for processing at the same time, and when the mounting rod 220 passes through the water jacket 300 hole, the water jacket 300 can be centered at the coordinate position of the water jacket 300 hole by pressing the pressing block 240 with the conical surface 241, and the clamping block with the clamping hole 251 can clamp the side of the column part to prevent it from swinging axially, so that the hole position can be processed more accurately, and the processing precision is effectively improved.

[0039] The foregoing description of the specific exemplary embodiments of the present application is for the purpose of illustrating and describing, rather than limiting the application, and it will be apparent to those of ordinary skill in the art that many changes and modifications can be made to the embodiments with the foregoing teaching, notwithstanding what can be suggested above and although only a few of the exemplary embodiments of the present application have been described. Although the embodiments of the present application have been described, the specific embodiments are merely illustrative of the present application and are not intended to limit the present application, and the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner, and the exemplary embodiments are selected and described for the purpose of explaining the specific principles of the present application and its practical application, so that those skilled in the art can make modifications, replacements, variations and various different selections and changes to the embodiments without creative contribution after reading the specification, as long as they are within the scope of the claims of the present application.

Claims

1. A multi-station centering tool, comprising a base, wherein a plurality of stations are arranged on the base, and a positioning groove is arranged on each station, characterized in that: a clamping assembly is arranged on each station, wherein the clamping assembly comprises a seat body and a mounting rod, a mounting hole is arranged on the top of the seat body, the seat body is fixedly connected with the base, one end of the mounting rod is detachably connected with the mounting hole, a first spring and a pressing block are sleeved on the mounting rod, the first spring is located between the other end of the mounting rod and the pressing block, and a conical surface is arranged on the bottom of the pressing block; an elastic clamping block is arranged on the side of the seat body, one end of the elastic clamping block elastically approaches the positioning groove, and a clamping hole is arranged on one end of the elastic clamping block. A pin hole is arranged on the bottom of the mounting hole, and a column pin is arranged on one end of the mounting rod and matched with the pin hole.

2. The multi-station centering tool of claim 1, wherein, An inner thread is arranged on the inner wall of the mounting hole, and an outer thread matched with the inner thread is arranged on the outer periphery of one end of the mounting rod.

3. The multi-station centering tool of claim 2, wherein, A chuck is arranged on the other end of the mounting rod, and the end of the first spring abuts against the chuck.

4. The multi-station centering tool of claim 3, wherein, A rotating piece is arranged on the chuck and perpendicular to the chuck.

5. The multi-station centering tool of claim 4, wherein, The side of the positioning groove and the clamping hole are both circular arc structures.

6. The multi-station centering fixture of claim 1, wherein, An insertion hole is arranged on the side of the seat body, the other end of the elastic clamping block is inserted into the insertion hole, and a second spring is arranged between the elastic clamping block and the bottom of the insertion hole.

7. The multi-station centering fixture of claim 1, wherein, A sliding groove is arranged at the insertion hole, and a sliding pin is arranged on the elastic clamping block and capable of being clamped in and sliding along the sliding groove.

8. The multi-station centering tool of claim 7, wherein, A detachable blocking ring is arranged at the insertion hole, the elastic clamping block can pass through the middle of the blocking ring, and the blocking ring can shield the sliding pin to limit the sliding pin from falling out of the sliding groove.

9. The multi-station centering tool of claim 8, wherein, A plurality of lightening holes are arranged between the stations.

10. The multi-station centering fixture of claim 1, wherein, ​

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