CN222903745U - A precision positioning fixture for precision parts processing - Google Patents

Abstract

The utility model belongs to the technical field of precision parts processing, and discloses a precision positioning fixture for precision parts processing. The utility model comprises a base, an L-shaped fixing plate is installed on the upper surface of the base, a motor is arranged on the inner side wall of the L-shaped fixing plate, a positioning mechanism for positioning the moving position of the precision parts is installed on the output shaft of the motor, and a supporting device is arranged inside the positioning mechanism. The supporting mechanism inside the positioning mechanism drives the positioning mechanism to clamp the precision parts at the outer end or inside of the positioning mechanism by starting the motor, so that the subsequent positioning mechanism can clamp and sleeve the positioning precision parts of different models and volumes during use, thereby expanding the subsequent positioning range of the device during use; the position of small precision parts inside the positioning mechanism is supported by the supporting mechanism, so that the subsequent staff does not need to manually support the precision parts when positioning the precision parts using the positioning mechanism.

Description

Precision positioning fixture for precision part machining

Technical Field

The utility model relates to the technical field of precision part machining, in particular to a precision positioning fixture for precision part machining.

Background

The machining of the part refers to the process of changing the external dimension or performance of a workpiece through part equipment, and the machining mode can be divided into cutting machining and pressure machining according to the difference, so that the machining process of the part is formulated, and when the precise part is machined, the part is required to be positioned and clamped.

The utility model discloses a precision positioning fixture for precision part machining, which comprises a base, wherein the top of the base is provided with a bearing seat, the top of the bearing seat is rotationally connected with a rotating rod, the top of the rotating rod is provided with a cylindrical barrel, the top and the bottom of the cylindrical barrel are all provided with first bearings in a penetrating way, a plurality of groups of grooves are formed in the middle position of the surface of the cylindrical barrel in a penetrating way in a circumferential array, the inner wall of the cylindrical barrel is fixedly connected with an arc plate positioned in the grooves, a positioning assembly is arranged in the cylindrical barrel, the positioning assembly comprises a first screw rod connected with the first bearings, one end of the first screw rod is sleeved with a first thread bush, a plurality of sleeves are arranged around the ring of the first thread bush, gears with inner rings of different diameters are positioned to prevent the gears from swinging, the corresponding positioning fixture is not required to be replaced according to the gears with the inner rings of different diameters, the working procedure is further reduced, and the working efficiency is improved.

In the process of realizing the application, the technology has the following problems that the existing precise positioning clamp for precise part processing can only sleeve the precise part at the outer end of the positioning mechanism in the use process, so that a follow-up worker cannot position the precise part by using the device when processing the inner wall of the precise part, thereby reducing the practicability of the device.

Therefore, the precise positioning fixture for precise part machining is provided.

Disclosure of utility model

The utility model aims to solve the problem that the existing precise positioning fixture for precise part machining can only sleeve the precise part at the outer end of a positioning mechanism in the use process, so that a follow-up worker cannot position the precise part by using the device when machining the inner wall of the precise part.

The utility model adopts the following technical scheme for realizing the purposes:

The utility model provides a precision positioning anchor clamps that precision parts processing was used, includes the base, the upper surface mounting of base has L type fixed plate, the inside wall of L type fixed plate is provided with the motor, the positioning mechanism of the accurate part shift position of location is installed to the output shaft of motor, positioning mechanism's inside is provided with strutting arrangement and is in the inside supporting mechanism of positioning mechanism.

Further, positioning mechanism includes connecting rod and backup pad, the connecting rod is installed the output shaft of motor, the backup pad is installed the upper surface of base, the upper surface of backup pad is provided with fixed ring one, four groups of recesses have been seted up to the surface of fixed ring one, the inside equal sliding connection of four groups of recesses of fixed ring one has the locating lever, the connecting rod is kept away from one side of motor is provided with fixed disc, fixed disc is kept away from one side of L type fixed plate has seted up four groups of arc recesses, the inside equal sliding connection of four groups of arc recesses of fixed disc has the slider, four groups the slider is kept away from one side of fixed disc all is provided with the dead lever, four groups the dead lever is kept away from one side of fixed disc is rotated respectively and is connected in four groups the locating lever is close to one side of fixed disc, four groups the locating lever is close to one side of the inner wall of fixed ring one all is provided with the triangular block.

Further, the four groups of locating rods are provided with anti-skid bumps on one side far away from one outer surface of the fixed circular ring.

Further, a positioning plate is arranged on the upper surface of the first fixed circular ring, and one side, far away from the fixed disc, of the supporting plate and one side, far away from the L-shaped fixed plate, of the four groups of positioning rods are kept parallel.

Further, the supporting mechanism comprises a second fixed ring, the second fixed ring is installed on the inner wall of the first fixed ring, a supporting rod is connected to the second fixed ring in a sliding mode, and the position of the supporting rod is located in the first fixed ring.

Further, an L-shaped connecting block is arranged on one side, close to the supporting rod, of the second fixed ring, and the inner side wall of the L-shaped connecting block is located on a path on one side of the supporting rod.

The beneficial effects of the utility model are as follows:

1. According to the utility model, the motor is started to drive the connecting rod and the fixed disc to rotate, so that the following fixed disc drives the four groups of sliding blocks to slide in the four groups of arc-shaped grooves of the fixed disc in the rotating process, the four groups of sliding blocks drive the four groups of positioning rods to slide in the four groups of grooves of the first fixed ring in the sliding process, the outer surfaces of the four groups of positioning rods are abutted to the outer end of the first fixed ring and sleeved with the inner wall of the precise part, the four groups of positioning rods are used for positioning and limiting the position of the precise part at the outer end of the first fixed ring, so that the horizontal positioning and clamping operation of the precise part is completed, and the positions of the four groups of positioning rods can be used for adjusting and moving, so that the following four groups of positioning rods can clamp the precise parts with different models.

2. According to the utility model, the position of the small precise part is adjusted and moved to the inside of the first fixed circular ring by adjusting the position of the movable small precise part, and then the motor is started to drive the four groups of positioning rods to move, so that one ends of the four groups of triangular blocks, which are far away from the adjacent group of positioning rods, are abutted against the outer surface of the small precise part, and the small precise part can be clamped and positioned in the inside of the first fixed circular ring by the subsequent positioning mechanism in the use process, so that the positioning range of the subsequent device in the use process is enlarged, and the practicability of the device is improved.

Drawings

FIG. 1 is a schematic side elevational view of the present utility model;

FIG. 2 is a schematic diagram of the front structure of the present utility model;

FIG. 3 is a schematic side view of the support mechanism of the present utility model;

Fig. 4 is an enlarged view of the utility model at a in fig. 2.

The device comprises a reference numeral 1, a base, a 2, a positioning mechanism, a 201, an L-shaped fixing plate, a 202, a motor, a 203, a connecting rod, a 204, a fixed disc, a 205, a fixed ring I, a 206, a positioning rod, a 207, a fixed rod, a 208, a supporting plate, a 209, a triangular block, a 210, a sliding block, a 3, an anti-skid bump, a 4, an L-shaped connecting block, a 5, a supporting mechanism, a 501, a supporting rod, a 502, a fixed ring II and a 6, a positioning plate.

Detailed Description

For the purpose of making the objects, technical solutions and advantages of the embodiments of the present utility model more apparent, the technical solutions of the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model, and it is apparent that the described embodiments are some embodiments of the present utility model, but not all embodiments of the present utility model. The components of the embodiments of the present utility model generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.

Thus, the following detailed description of the embodiments of the utility model, as presented in the figures, is not intended to limit the scope of the utility model, as claimed, but is merely representative of selected embodiments of the utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

It should be noted that like reference numerals and letters refer to like items in the following figures, and thus once an item is defined in one figure, no further definition or explanation thereof is necessary in the following figures. Furthermore, the terms "first," "second," and the like, are used merely to distinguish between descriptions and should not be construed as indicating or implying relative importance.

In describing embodiments of the present utility model, it should be noted that the directions or positional relationships indicated by the terms "inner", "outer", "upper", etc. are directions or positional relationships based on those shown in the drawings, or those that are conventionally put in place when the inventive product is used, are merely for convenience of description and simplification of description, and are not indicative or implying that the apparatus or element in question must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as limiting the present utility model.

As shown in fig. 1 to 4, a precision positioning fixture for precision part machining comprises a base 1, wherein an L-shaped fixing plate 201 is installed on the upper surface of the base 1, a motor 202 is arranged on the inner side wall of the L-shaped fixing plate 201, a positioning mechanism 2 for positioning the moving position of a precision part is installed on an output shaft of the motor 202, a supporting mechanism 5 for supporting and placing the precision part inside the positioning mechanism 2 is arranged inside the positioning mechanism 2, and specifically, the positioning mechanism 2 is driven by the starting motor 202 to clamp the precision part at the outer end or inside of the positioning mechanism 2, so that the subsequent positioning mechanism 2 can clamp and sleeve positioning precision of different types of volumes in the use process, the positioning range of the subsequent positioning fixture in the use process is enlarged, and the practicability of the device is improved.

As shown in fig. 1, fig. 2 and fig. 4, the positioning mechanism 2 comprises a connecting rod 203 and a supporting plate 208, the connecting rod 203 is mounted on an output shaft of the motor 202, the supporting plate 208 is mounted on the upper surface of the base 1, a first fixed circular ring 205 is arranged on the upper surface of the supporting plate 208, four groups of grooves are formed in the outer surface of the first fixed circular ring 205, positioning rods 206 are slidably connected in the four groups of grooves of the first fixed circular ring 205, a fixed circular disc 204 is arranged on one side of the connecting rod 203, which is far away from the motor 202, four groups of arc grooves are formed in one side of the fixed circular disc 204, which is far away from the L-shaped fixed plate 201, sliding blocks 210 are slidably connected in the four groups of arc grooves of the fixed circular disc 204, fixing rods 207 are respectively rotatably connected on one side, which is far away from the fixed circular disc 204, of the four groups of positioning rods 206 are close to the fixed circular disc 204, and triangular blocks 209 are respectively arranged on one side, which is close to the inner wall of the first fixed circular ring 205, of the four groups of positioning rods 206;

Specifically, when the subsequent precise part is sleeved at the outer end of the first fixed ring 205, the motor 202 is started to drive the connecting rod 203 and the fixed disc 204 to rotate, so that the subsequent fixed disc 204 drives the four groups of sliding blocks 210 to slide in the four groups of arc-shaped grooves of the fixed disc 204 in the rotating process, the four groups of sliding blocks 210 drive the four groups of fixing rods 207 to pull the four groups of positioning rods 206 to slide in the four groups of grooves of the first fixed ring 205 in the sliding process, the outer surfaces of the four groups of positioning rods 206 are abutted to the inner wall of the first fixed ring 205, the positions of the precise part at the outer end of the first fixed ring 205 are limited by the four groups of positioning rods 206, and therefore the horizontal positioning and clamping operation of the precise part is completed.

Meanwhile, when the device is used for machining the inner wall of the small precise part, the position of the small precise part is adjusted and moved to the inside of the first fixed ring 205 by adjusting the position of the movable small precise part, the four groups of positioning rods 206 are driven by the starting motor 202 to move, and one ends of the four groups of triangular blocks 209, which are far away from the adjacent groups of positioning rods 206, are abutted against the outer surface of the small precise part, so that the small precise part can be clamped and positioned in the inside of the first fixed ring 205 in the using process of the subsequent positioning mechanism 2, the positioning range of the device in the using process is enlarged, and the practicability of the device is improved.

As shown in fig. 1, 2 and 4, the sides of the four sets of positioning rods 206 far away from the outer surface of the first fixed ring 205 are respectively provided with a non-slip bump 3, specifically, the positions of the four sets of non-slip bumps 3 are arranged between the joints of the four sets of positioning rods 206 and the inner wall of the precision part, so that the contact area between the inner walls of the precision part and the subsequent four sets of positioning rods 206 is increased through the four sets of non-slip bumps 3, and further the friction force between the inner walls of the precision part and the subsequent positioning mechanism 2 is increased in the use process, thereby avoiding the movement of the precision part after the end of the subsequent four sets of positioning rods 206 far away from the first fixed ring 205 is abutted against the inner wall of the precision part as much as possible, and improving the stability of the positioning mechanism 2 in positioning large-scale precision parts.

As shown in fig. 1 and 2, the upper surface of the first fixing ring 205 is provided with a positioning plate 6, and one side of the supporting plate 208 and the positioning plate 6 away from the fixing disc 204 and one side of the four sets of positioning rods 206 away from the L-shaped fixing plate 201 are kept parallel, specifically, one side of the supporting plate 208 and the positioning plate 6 away from the fixing disc 204 and one side of the four sets of positioning rods 206 away from the L-shaped fixing plate 201 are kept parallel, so that the moving position of the precise part placed at the outer end of the first fixing ring 205 is limited by the subsequent supporting plate 208 and the positioning plate 6, and further, the precise part can be rapidly placed at the outer end of the four sets of positioning rods 206 by pushing one side of the precise part close to the L-shaped fixing plate 201 to abut against one side of the supporting plate 208 and one side of the positioning plate 6 away from the L-shaped fixing plate 201, thereby reducing the time consumed by the subsequent staff when the precise part is sleeved at the outer end of the four sets of positioning rods 206, and improving the practicability of the device.

Meanwhile, one side of the precise part, which is close to the L-shaped fixing plate 201, is abutted against one side, which is far away from the L-shaped fixing plate 201, of the supporting plate 208 and the positioning plate 6 by pushing the precise part, so that the supporting plate 208 and the positioning rod 206 limit a path of the precise part moving backwards at the outer end of the first fixed ring 205, and further, the precise part is prevented from moving backwards in the process of machining the precise part by a subsequent worker as much as possible, and therefore, the stability of the subsequent precise part in the machining process of the outer end of the first fixed ring 205 is improved.

As shown in fig. 2 and 3, the supporting mechanism 5 includes a second fixed ring 502, the second fixed ring 502 is mounted on the inner wall of the first fixed ring 205, the second fixed ring 502 is slidably connected with a supporting rod 501, the position of the supporting rod 501 is located in the first fixed ring 205, specifically, when the inside of the first fixed ring 205 is used for clamping a small precise part, the supporting rod 501 is pushed to drive the supporting rod 501 to slide in the inside of the second fixed ring 502, the position of one end of the supporting rod 501 is adjusted to be between four groups of positioning rods 206, and then the small precise part is moved by carrying and sleeved on the outer end of the supporting rod 501, so that the supporting mechanism 5 supports the small precise part in the position of the first fixed ring 205, and further, the subsequent staff does not need to manually support the precise part in the positioning process by using the positioning mechanism 2, thereby reducing the labor and time consumed by the subsequent staff in positioning the precise part by using the positioning mechanism 2.

As shown in fig. 3, an L-shaped connection block 4 is disposed on one side of the second fixed ring 502 near the support rod 501, and the inner side wall of the L-shaped connection block 4 is located on a path of one side of the support rod 501, specifically, the position of the L-shaped connection block 4 is located between the first fixed ring 205 and the position of the L-shaped fixed plate 201, and the position of the L-shaped connection block 4 is located on a moving path of the support rod 501, so that the L-shaped connection block 4 limits the moving position of the support rod 501 inside the second fixed ring 502, and thus, the situation that the motor 202 drives the support rod 501 to slide inside the second fixed ring 502 and the fixed disc 204 contacts in the starting process to cause the support mechanism 5 to stop the fixed disc 204 from rotating normally is avoided.

In summary, the connecting rod 203 and the fixed disc 204 are driven to rotate by the starting motor 202, so that the following fixed disc 204 drives the four groups of sliding blocks 210 to slide in the four groups of arc-shaped grooves of the fixed disc 204 in the rotating process, the four groups of sliding blocks 210 drive the four groups of fixing rods 207 to pull the four groups of positioning rods 206 to slide in the four groups of grooves of the fixed ring 205 in the sliding process, the outer surfaces of the four groups of positioning rods 206 are abutted against the inner wall of the precise part sleeved at the outer end of the fixed ring 205, the four groups of positioning rods 206 are used for positioning and limiting the position of the precise part at the outer end of the fixed ring 205, the position of the small precise part is adjusted and moved to the inner part of the fixed ring 205 by adjusting the position of the small precise part, the four groups of positioning rods 206 are driven to move by the starting motor 202, and one ends of the four groups of triangular blocks 209 far away from the adjacent groups of positioning rods 206 are abutted against the outer surfaces of the small precise part, so that the following positioning mechanism 2 can clamp and position the small precise part in the fixed ring 205 in the use process.

Meanwhile, one side of the support plate 208 and the positioning plate 6 far away from the fixed disc 204 and one side of the four groups of positioning rods 206 far away from the L-shaped fixed plate 201 are kept parallel, so that the moving positions of the follow-up support plate 208 and the positioning plate 6 when the precise parts are placed at the outer end of the first fixed ring 205 are limited, further, follow-up workers can quickly place the precise parts at the outer ends of the four groups of positioning rods 206 by pushing one side of the precise parts close to the L-shaped fixed plate 201 to abut against one side of the support plate 208 and one side of the positioning plate 6 far away from the L-shaped fixed plate 201, the support rods 501 are driven to slide in the second fixed ring 502 by pushing the support rods 501, the positions of one ends of the support rods 501 are adjusted to be between the four groups of positioning rods 206, and then the precise parts are sleeved at the outer ends of the support rods 501 by carrying and moving the small precise parts, so that the support mechanism 5 supports the small precise parts at the inner positions of the first fixed ring 205, and further, the follow-up workers do not need to manually support the precise parts in the positioning process by utilizing the positioning mechanism 2.

The foregoing has shown and described the basic principles, principal features and advantages of the utility model. It will be understood by those skilled in the art that the present utility model is not limited to the embodiments described above, and that the above embodiments and descriptions are merely illustrative of the principles of the present utility model, and various changes and modifications may be made therein without departing from the spirit and scope of the utility model, which is defined by the appended claims. The scope of the utility model is defined by the appended claims and equivalents thereof.

Claims (6)

1. The precise positioning clamp for precise part machining comprises a base (1) and is characterized in that an L-shaped fixing plate (201) is mounted on the upper surface of the base (1), a motor (202) is arranged on the inner side wall of the L-shaped fixing plate (201), a positioning mechanism (2) for positioning the moving position of a precise part is mounted on an output shaft of the motor (202), and a supporting mechanism (5) with a supporting device inside the positioning mechanism (2) is arranged inside the positioning mechanism (2).

2. The precision positioning fixture for precision part machining according to claim 1, wherein the positioning mechanism (2) comprises a connecting rod (203) and a supporting plate (208), the connecting rod (203) is installed on an output shaft of the motor (202), the supporting plate (208) is installed on the upper surface of the base (1), a first fixed ring (205) is arranged on the upper surface of the supporting plate (208), four groups of grooves are formed in the outer surface of the first fixed ring (205), positioning rods (206) are slidably connected in the four groups of grooves of the first fixed ring (205), a fixed disc (204) is arranged on one side, far away from the motor (202), of the connecting rod (203), four groups of arc grooves are formed in one side, far away from the motor (202), of the fixed disc (204), sliding blocks (210) are slidably connected in the four groups of arc grooves, one side, far away from the fixed disc (204), of the four groups of sliding blocks (210) is provided with a fixed rod (206), the four groups of fixed rods (207) are rotatably connected on one side, far from the fixed disc (204), of the fixed disc (204), and triangular blocks (209) are arranged on one side of the four groups of positioning rods (206) close to the inner wall of the first fixed ring (205).

3. The precision positioning fixture for precision parts machining according to claim 2, wherein the four sets of positioning rods (206) are provided with anti-slip bumps (3) on one side away from the outer surface of the first fixed ring (205).

4. The precision positioning fixture for precision parts machining according to claim 2, wherein a positioning plate (6) is mounted on the upper surface of the first fixed ring (205), and the side of the support plate (208) and the positioning plate (6) away from the fixed disc (204) and the sides of the four groups of positioning rods (206) away from the L-shaped fixed plate (201) are kept parallel.

5. The precision positioning fixture for precision part machining according to claim 2, wherein the supporting mechanism (5) comprises a second fixed ring (502), the second fixed ring (502) is mounted on the inner wall of the first fixed ring (205), a supporting rod (501) is slidably connected to the inside of the second fixed ring (502), and the supporting rod (501) is located inside the first fixed ring (205).

6. The precision positioning fixture for precision part machining according to claim 5, wherein the second fixed ring (502) is provided with an L-shaped connecting block (4) at one side close to the supporting rod (501), and the inner side wall of the L-shaped connecting block (4) is located on one side path of the supporting rod (501).