Anti-deviation positioning tool for sinter molding

Abstract

The utility model relates to the technical field of casting part machining, in particular to a sinter molding deviation-preventing positioning tool which comprises a positioning platform and at least two sets of fixing rings arranged on one side of the positioning platform, inserting grooves are formed in the left side and the right side of each fixing ring, and clamping blocks are arranged in the inserting grooves in a sliding mode. A first adjusting disc is arranged at the upper end of the fixing ring, a second adjusting disc is arranged at the lower end of the fixing ring, a guide structure used for driving the two clamping blocks to move oppositely through rotation is arranged on the phase viewing side of the first adjusting disc and the fixing ring, and a worm transmission piece used for controlling rotation of the second adjusting disc is arranged on the outer side of the fixing ring. The worm transmission part controls the second adjusting disc to rotate, the second adjusting disc drives the two clamping blocks to move oppositely through the guide structure in the rotating process, the track equipment casting part is fastened, the first adjusting disc guides the clamping blocks from the tops of the clamping blocks through the guide structure, the worm transmission part has the self-locking performance, and it is guaranteed that the clamping blocks cannot loosen after being fastened; the safety is better, and adjustment and control are flexible.

Description

TECHNICAL FIELD

[0001] The utility model relates to foundry part processing technical field especially relates to a sintering forming anti -offset positioning frock. BACKGROUND

[0002] In rail transit braking device, the castings will use positioning frock to fasten after firing, through the positioning frock to the sintered part accurate positioning and fixed, prevent its occurrence deviation, ensure that the position precision and quality stability of sintered part in subsequent process (such as cooling, transfer, processing, assembly etc.

[0003] Such as the patent of application No. CN202323324305.1, a kind of positioning rotary clamp for metal casting finishing, including platform, the inner wall of platform is rotatably connected with rotating ring, the inner wall of platform is fixedly connected with fixed column, the inner wall of rotating ring is provided with three groups of annular grooves, rotating ring is provided with three groups of arc grooves, the inner wall of three groups of arc grooves is slidably connected with sliding column, the outer side wall of sliding column is fixedly connected with clamping block, the top of the outer wall of support rod is elastically connected with sliding rod by limiting spring, the utility model in use, by being provided with rotating ring and sliding column, when clamping metal casting, by rotating support rod to let rotating ring move in the inner wall of platform, to let it drive three groups of clamping blocks to approach each other, to clamp metal casting, and by the wedge of support rod inner wall to fixed rotating ring, without rotating bolt multiple times when fixing, it is more convenient to clamp, more time-saving and labor-saving.But due to the fixation of rotating ring, the locking of rotating support rod is completed by inserting and pulling wedge, therefore, when needing to adjust or assemble metal casting multiple times, it is necessary to insert and pull wedge constantly, which affects frock positioning efficiency. UTILITY MODEL CONTENTS

[0004] In view of the above problems, the utility model provides a sintering forming anti -offset positioning frock to solve the shortcomings that the present anti -offset positioning frock needs to insert and pull wedge constantly when needing to adjust or assemble metal casting multiple times, which affects frock positioning efficiency.

[0005] To achieve the purpose of the utility model, the utility model realizes the following technical scheme: a kind of sintering forming anti -offset positioning frock, including positioning platform and at least two groups of fixed ring 1 being located at one side of positioning platform, the left and right sides of fixed ring are provided with insertion slot, clamping block is slidably arranged in insertion slot;

[0006] First adjusting disc is arranged on the upper end of fixed ring, second adjusting disc is arranged on the lower end of fixed ring, first adjusting disc and second adjusting disc are rotatably connected with fixed ring, and positioning hole allowing castings to be placed is arranged in the center of first adjusting disc and fixed ring;

[0007] The first adjusting disc and the fixed ring are provided with a guide structure for moving the two clamping blocks towards each other by rotating.

[0008] Further improvement lies in that the guide structure comprises a first guide groove set and a second guide groove set.

[0009] The first guide groove set comprises two first guide grooves, which are arranged on the side of the first adjusting disc facing the second adjusting disc, and a first pin rod is slidably arranged in the first guide groove and rotationally connected to the upper end of the clamping block.

[0010] The second guide groove set comprises two second guide grooves, which are arranged on the side of the second adjusting disc facing the first guide groove, and a second pin rod is slidably arranged in the second guide groove and rotationally connected to the lower end of the clamping block.

[0011] Further improvement lies in that the worm gear transmission comprises a mounting frame, a worm and a worm wheel, the mounting frame is fixedly connected to one side of the fixed ring, the worm is rotationally connected to the inner side of the mounting frame, a handle for controlling the rotation of the worm is arranged on the outer side of the mounting frame, the worm wheel is sleeved on the outer side of the second adjusting disc, the second adjusting disc is fixedly connected to the worm wheel, and the worm wheel is engaged with the worm.

[0012] Further improvement lies in that the handle comprises a rotating disc, the rotating disc is rotationally connected to the outer side of the mounting frame, the rotating disc is fixedly connected to the worm through a connecting shaft, a handle knob is arranged on the side of the rotating disc away from the mounting frame, and the handle knob is fixedly connected to the eccentric position of the rotating disc.

[0013] Further improvement lies in that the two clamping blocks are provided with arc groove surfaces on the opposite sides, and the arc groove surfaces are matched with the outer wall of the disc-shaped casting.

[0014] Further improvement lies in that the left and right sides of the clamping block are each provided with a limiting rib, the limiting rib is fixedly connected to the clamping block, a limiting rib groove is arranged on the inner side of the slot, and the limiting rib is slidably connected to the limiting rib groove.

[0015] Compared with the prior art, the utility model has the advantages of:

[0016] The worm gear transmission controls the rotation of the second adjusting disc, the two clamping blocks are moved towards each other by the guide structure during the rotation of the second adjusting disc, the track equipment casting is fastened, the first adjusting disc guides the clamping block from the top of the clamping block through the guide structure, the worm gear transmission has self-locking property, the clamping block will not be loose after fastening, the safety is better, and the adjustment and control are flexible. BRIEF DESCRIPTION OF DRAWINGS

[0017] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used in the description of the embodiments will be briefly introduced. Obviously, the drawings in the following description only constitute some of the embodiments of the present application, and for those skilled in the art, other drawings can be obtained without creative labor on the basis of these drawings.

[0018] Figure 1 is the structure diagram of the positioning platform in the utility model.

[0019] Figure 2 is the structure diagram of the mounting frame in the utility model.

[0020] Figure 3 is the structure diagram of the first adjusting disc in the utility model.

[0021] Figure 4 is the structure diagram of the first guide groove in the utility model.

[0022] Figure 5 is the structure diagram of the second adjusting disc in the utility model.

[0023] Figure 6 is the structure diagram of the fixing ring in the utility model.

[0024] Among them: 1, the fixing ring; 2, the first adjusting disc; 3, the first guide groove; 4, the positioning platform; 5, the slot; 6, the clamping block; 7, the mounting frame; 8, the first pin; 9, the positioning hole; 10, the worm; 11, the turntable; 12, the second adjusting disc; 13, the second guide groove; 14, the second pin; 15, the worm wheel; 16, the circular arc groove surface; 17, the limiting edge; 18, the limiting edge groove. DETAILED DESCRIPTION

[0025] In order to make the purpose, technical solutions and advantages of the embodiments of the present application more clear, the technical solutions in the embodiments of the present application will be clearly and completely described below in combination with the drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, rather than all the embodiments. 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.

[0026] According to Figure 1 , 2 , 3, 4, 5, 6, the present embodiment proposes a sintering forming anti-deviation positioning tool, which comprises a positioning platform 4 and at least two groups of fixing rings 1 arranged on one side of the positioning platform 4, and the left and right sides of the fixing ring 1 are provided with slots 5, and the slots 5 are slidably provided with clamping blocks 6.

[0027] The first adjusting disc 2 is arranged at the upper end of the fixed ring 1, and the second adjusting disc 12 is arranged at the lower end of the fixed ring 1; the first adjusting disc 2 and the second adjusting disc 12 are rotationally connected with the fixed ring 1; the central part of the first adjusting disc 2 and the fixed ring 1 is provided with a positioning hole 9 for allowing the casted part to be put in;

[0028] The anti-offset positioning tool after sintering forming is mainly used for accurately positioning and fixing the sintered part after the sintering forming process is completed, preventing the sintered part from being offset, and ensuring the position accuracy and quality stability of the sintered part in the subsequent process. The sintered casted part is put into the positioning hole 9 in the fixed ring 1, and the clamping blocks 6 on the left and right sides of the fixed ring 1 will fasten the casted part.

[0029] The side of the first adjusting disc 2 and the fixed ring 1 is provided with a guide structure for driving the two clamping blocks 6 to move towards each other by rotating, and the outer side of the fixed ring 1 is provided with a worm gear transmission part for controlling the rotation of the second adjusting disc 12.

[0030] The worm gear transmission part controls the rotation of the second adjusting disc 12, and the second adjusting disc 12 drives the two clamping blocks 6 to move towards each other through the guide structure during rotation, thereby fastening the casted part. The insertion slot 5 arranged on the outer side of the fixed ring 1 limits the clamping blocks 6 from the side edge of the clamping blocks 6. The first adjusting disc 2 guides the clamping blocks 6 from the top of the clamping blocks 6 through the guide structure. The worm gear transmission part has self-locking property, which can ensure that the clamping blocks 6 will not be loose after being fastened, and the safety is better, and the adjustment and control are flexible.

[0031] Regarding the guide structure:

[0032] The guide structure includes a first guide groove group and a second guide groove group.

[0033] The first guide groove group includes two first guide grooves 3, and the first guide grooves 3 are arranged on the side of the first adjusting disc 2 facing the second adjusting disc 12. The first guide grooves 3 are slidably provided with first pin rods 8, and the first pin rods 8 are rotationally connected to the upper ends of the clamping blocks 6.

[0034] The second guide groove group includes two second guide grooves 13, and the second guide grooves 13 are arranged on the side of the second adjusting disc 12 facing the first guide grooves 3. The second guide grooves 13 are slidably provided with second pin rods 14, and the second pin rods 14 are rotationally connected to the lower ends of the clamping blocks 6.

[0035] When the worm gear transmission part drives the second adjusting disc 12 to rotate, the second pin rods 14 in the second guide grooves 13 will slide along the second guide grooves 13. The second guide grooves 13 guide the two clamping blocks 6 by cooperating with the second pin rods 14, so that the two clamping blocks 6 move towards or away from the casted part. The first pin rods 8 are rotationally connected to the upper ends of the clamping blocks 6, and when the clamping blocks 6 act, the first pin rods 8 will also slide along the first guide grooves 3 arranged on the first adjusting disc 2. With the rotation of the first adjusting disc 2, the first guide groove group limits the clamping blocks 6 from the top of the clamping blocks 6.

[0036] Regarding the worm gear:

[0037] The worm gear includes a mounting frame 7, a worm 10 and a worm wheel 15, the mounting frame 7 is fixedly connected to one side of the fixed ring 1, the worm 10 is rotatably connected to the inner side of the mounting frame 7, a handle for controlling the rotation of the worm 10 is arranged on the outer side of the mounting frame 7, the second adjusting disc 12 is fixedly connected with the worm wheel 15, and the worm wheel 15 is engaged with the worm 10. The worm 10 is controlled to rotate through the handle, and the worm 10 is engaged with the worm wheel 15 during rotation, thereby driving the second adjusting disc 12 to rotate. The worm and worm gear transmission has self-locking property, and when the handle stops rotating, the second adjusting disc 12 will not rotate and the clamping block 6 will not loosen under the engagement of the threads between the worm 10 and the worm wheel 15, and the firmness of the cast part is better.

[0038] In the preferred scheme, the handle includes a rotating disc 11 rotatably connected to the outer side of the mounting frame 7, the rotating disc 11 is fixedly connected with the worm 10 through a connecting shaft, and a handle is arranged on the side of the rotating disc 11 away from the mounting frame 7 and fixedly connected to the eccentric position of the rotating disc 11. When the rotating disc 11 is controlled to rotate, the handle on the outer side of the rotating disc 11 can be actuated, and the handle plays a role in facilitating the holding of the rotating disc 11.

[0039] In order to fasten the disc-shaped cast part such as brake disc, in the preferred scheme, arc grooves 16 are arranged on the opposite sides of the two clamping blocks 6, and the arc grooves 16 are matched with the outer side wall of the disc-shaped cast part. The two clamping blocks 6 in the fixed ring 1 are arranged on the left and right sides of the cast part, and when the clamping block 6 approaches the cast part, the arc grooves 16 on the end of the clamping block 6 will be matched with the outer side wall of the disc-shaped cast part, thereby effectively fixing the disc-shaped cast part.

[0040] In order to improve the stability of the clamping block 6 during operation, a limiting rib 17 is arranged on each of the left and right sides of the clamping block 6, the limiting rib 17 is fixedly connected with the clamping block 6, a limiting rib groove 18 is arranged on the inner side of the insertion slot 5, and the limiting rib 17 is slidably connected with the limiting rib groove 18. When the clamping block 6 is pushed by the first adjusting disc 2 and the second adjusting disc 12 and slides along the insertion slot 5, the limiting ribs 17 on the left and right sides of the clamping block 6 will slide along the limiting rib grooves 18 arranged on the inner side of the insertion slot 5, and the limiting rib grooves 18 will limit the clamping block 6 again through cooperation with the limiting ribs 17, so that the clamping block 6 will not be deviated during movement.

[0041] Working principle of the present application:

[0042] The sintering forming anti-offset positioning tool is mainly used for accurately positioning and fixing the sintered casting after the sintering forming process is completed, preventing the sintered casting from being offset, and ensuring the position accuracy and quality stability of the sintered casting in subsequent processes. The sintered casting is placed in the positioning hole 9 in the fixing ring 1, and the clamping blocks 6 on the left and right sides of the fixing ring 1 will fasten the casting. The worm gear controls the rotation of the second adjusting disc 12, and the second adjusting disc 12 rotates to drive the two clamping blocks 6 to move towards each other, fastening the casting. The insertion slot 5 outside the fixing ring 1 will limit the clamping block 6 from the side of the clamping block 6. The first adjusting disc 2 guides the clamping block 6 from the top of the clamping block 6 through the guide structure. The worm gear has self-locking property, which can ensure that the clamping block 6 will not loosen after fastening, and the safety is better, and the adjustment and control are flexible.

[0043] In the description of the present application, it should be noted that the terms "upper", "lower", etc. indicate the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply 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. Unless otherwise specified and limited, the terms "mounting", "connecting", "connecting" should be understood broadly, for example, it can be fixed connection, or detachable connection, or integral connection; it can be mechanical connection, or electrical connection; it can be direct connection, or indirect connection through intermediate medium, or internal connection of two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0044] The above is only a specific embodiment of the present application, which enables those skilled in the art to understand or implement the present application. Various modifications of these embodiments will be apparent to those skilled in the art, and the general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the present application. Therefore, the present application will not be limited to these embodiments shown herein, but will conform to the widest scope consistent with the principles and novel features applied herein.

Claims

1. A sintering forming anti-deviation positioning tool, comprising a positioning platform (4) and at least two groups of fixing rings (1) arranged on one side of the positioning platform (4), characterized in that: The fixed ring (1) is provided with a slot (5) on both sides, and a clamping block (6) is slidably arranged in the slot (5); The upper end of the fixed ring (1) is provided with a first adjusting disc (2), and the lower end of the fixed ring (1) is provided with a second adjusting disc (12); the first adjusting disc (2) and the second adjusting disc (12) are rotationally connected with the fixed ring (1); the central part of the first adjusting disc (2) and the fixed ring (1) is provided with a positioning hole (9) for allowing a cast part to be put in; The side of the first adjusting disc (2) and the fixed ring (1) is provided with a guide structure for moving the two clamping blocks (6) towards each other by rotating; the outer side of the fixed ring (1) is provided with a worm gear transmission part for controlling the rotation of the second adjusting disc (12).

2. The anti-offset positioning tool of claim 1, wherein: The guide structure comprises a first guide groove group and a second guide groove group; The first guide groove group comprises two first guide grooves (3), which are arranged on the side of the first adjusting disc (2) facing the second adjusting disc (12); a first pin rod (8) is slidably arranged in the first guide groove (3); the upper end of the first pin rod (8) is rotationally connected with the clamping block (6). The second guide groove group comprises two second guide grooves (13), which are arranged on the side of the second adjusting disc (12) facing the first guide groove (3); a second pin rod (14) is slidably arranged in the second guide groove (13); the lower end of the second pin rod (14) is rotationally connected with the clamping block (6).

3. The anti-offset positioning tool of claim 1, wherein: The worm gear transmission part comprises a mounting frame (7), a worm (10) and a worm wheel (15); the mounting frame (7) is fixedly connected to one side of the fixed ring (1); the worm (10) is rotationally connected to the inner side of the mounting frame (7); a handle is arranged on the outer side of the mounting frame (7) for controlling the rotation of the worm (10); the worm wheel (15) is sleeved on the outer side of the second adjusting disc (12); the second adjusting disc (12) is fixedly connected with the worm wheel (15); the worm wheel (15) is engaged with the worm (10).

4. The anti-offset positioning tool of claim 3, wherein: The handle comprises a rotating disc (11), which is rotationally connected to the outer side of the mounting frame (7); the rotating disc (11) is fixedly connected with the worm (10) through a connecting shaft; a handle is arranged on the side of the rotating disc (11) away from the mounting frame (7); the handle is rotationally connected to the eccentric part of the rotating disc (11).

5. The anti-eccentricity sintering positioning tool of claim 1, wherein: The side of the two clamping blocks (6) is provided with a circular arc groove (16), which cooperates with the outer wall of the disc-shaped cast part.

6. The anti-eccentricity sintering positioning tool of claim 1, wherein: The left and right sides of the clamping block (6) are each provided with a limiting rib (17), which is fixedly connected with the clamping block (6); a limiting rib groove (18) is arranged in the inner side of the slot (5); the limiting rib (17) is slidably connected with the limiting rib groove (18).

Images