Machining jig for driving shaft of metering pump

Abstract

The utility model relates to the technical field of metering pump assembly machining assemblies, and discloses a metering pump driving shaft machining jig which comprises a shell mechanism, a clamping and fixing mechanism is arranged in the shell mechanism, the shell mechanism comprises a fixing base, and a first sliding groove is formed in the center position in the fixing base. According to the automatic centering shaft body clamping structure for the driving shaft of the metering pump, the two fixing blocks are installed in the fixing base in a vertically symmetrical and sliding mode, the two fixing blocks are arranged in a vertically symmetrical mode relative to the central axis of the central groove of the fixing base, and meanwhile the two fixing blocks are provided with the synchronous driving mechanism. The two fixing blocks can synchronously move towards each other or away from each other, so that when the metering pump driving shaft is clamped by the two fixing blocks, the metering pump driving shaft can be automatically coaxially arranged with the center line of the center groove of the fixing seat, the mounting height of the fixing seat does not need to be manually and actively adjusted to adapt to machining equipment of the metering pump driving shaft, and time and labor are saved.

Description

TECHNICAL FIELD

[0001] The utility model relates to metering pump assembly processing assembly technical field, concretely is a kind of metering pump driving shaft processing fixture. BACKGROUND

[0002] Metering pump driving shaft is the key component in metering pump, can convert the power output of power source such as motor into its rotational motion, for example, in melt gear metering pump, driving shaft is driven by motor, drives driving gear to rotate, currently, metering pump driving shaft needs to use metering pump driving shaft processing fixture when processing.

[0003] The existing metering pump driving shaft processing fixture still has the following problems when in use: it usually adopts the single fixed block structure design of bottom side, is driven to lift adjustment by adjusting structure, for pressing the metering pump driving shaft to be processed in fixed seat, since the metering pump driving shaft after its fixation is often eccentric and placed in the center groove of fixed seat, and the processing equipment of its metering pump driving shaft is usually arranged based on the central axis of the center groove as reference, at this time, the installation height of fixed seat often needs to be adjusted to adapt to the processing equipment of metering pump driving shaft, relatively laborious operation, can increase the labor intensity of operator, reduce processing efficiency, meanwhile, when the fixed block moves, it is greatly abraded, and it is difficult to move smoothly and smoothly. UTILITY MODEL CONTENTS

[0004] (I) technical problem solved.

[0005] In view of the deficiencies of prior art, the utility model provides a kind of metering pump driving shaft processing fixture, solves the problem raised in background art.

[0006] (II) technical scheme.

[0007] To achieve the above object, the utility model provides the following technical scheme: a kind of metering pump driving shaft processing fixture, including shell mechanism, clamping fixed mechanism is arranged in the shell mechanism, the shell mechanism includes a fixed seat, first sliding slot is arranged in the center position of the fixed seat, second sliding slot is opened in the middle of the one end of the first sliding slot, the center groove is opened in the center position of the front and back two side walls of the first sliding slot, the clamping fixed mechanism includes the fixed block that is symmetrically connected in the first sliding slot in up and down, two the fixed block is symmetrically arranged about the central axis of the center groove, the inclined surface of the opposite end of two the fixed block is provided with a plurality of auxiliary fixed slots, the one end center position of the fixed block is fixedly connected with connecting sleeve, two the connecting sleeve is slidably connected in the second sliding slot, and two the connecting sleeve is equipped with synchronous drive mechanism.

[0008] As a further scheme of the utility model: the second sliding groove inner top wall center position is equipped with a through hole, the through hole is fixedly installed with a matched sleeve, the synchronous drive mechanism includes the drive rod that rotates and is connected in the sleeve, the drive rod top end is fixedly connected with a crank handle, the second sliding groove inner bottom wall center position is fixedly installed with a rotating shaft seat, and the rotating shaft seat upper rotating end is fixedly connected with the drive rod.

[0009] As a further scheme of the utility model: the drive rod annular outer side wall upper end and lower end are equipped with opposite thread grooves, and two thread grooves outside are respectively screw connected with a matched thread sleeve, the connecting sleeve upper and lower two side walls are equipped with a fixed groove for the fixed installation of the thread sleeve.

[0010] As a further scheme of the utility model: the fixed seat two sides top end middle part is equipped with a groove, and the groove inner bottom wall center position is equipped with a mounting hole.

[0011] As a further scheme of the utility model: the fixed block front and rear two ends two sides are equipped with a limiting sliding slot, the first sliding groove front and rear two end inner side walls are equipped with a limiting sliding strip for the sliding connection of the limiting sliding slot, the fixed block other end middle part is equipped with an assembly groove, three guide rollers are rotatably installed in the assembly groove from top to bottom at equal intervals, and the guide rollers are rotatably connected with the first sliding groove inner wall.

[0012] Compared with the prior art, the utility model has the advantages that:

[0013] 1、The utility model discloses a metering pump driving shaft clamping structure with automatic centering, two fixed blocks are slidably installed in the fixed seat in an upper and lower symmetrical manner, the two fixed blocks are arranged in an upper and lower symmetrical manner about the central axis of the fixed seat central groove, and the two fixed blocks are provided with a synchronous drive mechanism, so that the two fixed blocks can move synchronously towards or away from each other.

[0014] 2、The synchronous drive mechanism adopts the same drive rod structure design, the drive rod annular outer side wall upper end and annular outer side wall lower end are provided with opposite thread grooves, and the thread grooves outside are respectively screw connected with a matched thread sleeve.

[0015] 3. The utility model discloses a fixing block is moved the stable position effect of playing, and the other end of fixing block is rotatably installed with three guide pulleys, and the guide pulley is connected with the inner wall of first sliding slot, and the guide pulley plays the smooth guiding effect of fixing block movement, and the whole fixing block can move stably and smoothly. BRIEF DESCRIPTION OF DRAWINGS

[0016] Fig. 1 It is the overall perspective view of the utility model;

[0017] Fig. 2 It is the overall sectional perspective view of the utility model;

[0018] Fig. 3 It is the shell mechanism perspective view of the utility model;

[0019] Fig. 4 It is the clamping fixed mechanism perspective view of the utility model.

[0020] In the drawing: 1, shell mechanism, 2, clamping fixed mechanism, 11, fixed seat, 12, first sliding slot, 13, second sliding slot, 14, center groove, 15, through-hole, 16, recess, 17, mounting hole, 18, limit slide strip, 21, fixing block, 22, auxiliary fixed groove, 23, connecting sleeve, 24, threaded sleeve, 25, matching sleeve, 26, drive rod, 27, crank handle, 28, limit sliding slot, 29, guide pulley. DETAILED DESCRIPTION

[0021] The embodiment of the utility model will be described in further detail below in combination with the drawings and examples. The following examples are used to illustrate the utility model, but cannot be used to limit the scope of the utility model.

[0022] In the description of the utility model, unless otherwise specified, the meaning of "multiple" is two or more than two;The orientation or position relationship indicated by the terms "upper", "lower", "left", "right", "inner", "outer", "front end", "rear end", "head", "tail" and the like is based on the orientation or position relationship shown in the drawings, and is only for the convenience of describing the utility model and simplifying the description, and does not indicate or imply that the indicated device or element must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the utility model. In addition, the terms "first", "second", "third" and the like are only for the purpose of description, and cannot be understood as indicating or implying relative importance.

[0023] In the description of the utility model, it is necessary to explain, unless another explicit provision and limitation, term '' connected '' '' connection '' should do broad sense understanding, for example, can be fixed connection, also can be detachable connection, or integrally connected, can be mechanical connection, also can be electrical connection, can be directly connected, also can be indirectly connected through intermediate medium.

[0024] Please refer to Figs. 1-4 The utility model discloses a kind of metering pump driving shaft processing fixtures in the embodiment of the utility model, including shell mechanism 1, clamping fixed mechanism 2 is provided in shell mechanism 1, shell mechanism 1 includes a fixed seat 11, first sliding slot 12 is provided in the center position of fixed seat 11, second sliding slot 13 is opened in the middle of one end of first sliding slot 12, one center groove 14 is respectively opened in the center position of the two side walls of first sliding slot 12, clamping fixed mechanism 2 includes the fixed block 21 that is symmetrically connected in first sliding slot 12 in up-down, two fixed blocks 21 are symmetrically arranged about the central axis of center groove 14, the inclined surface of two fixed blocks 21 is provided with multiple auxiliary fixed slots 22 towards one end, one end of fixed block 21 center position is fixedly connected with connecting sleeve 23, two connecting sleeves 23 are slidably connected in second sliding slot 13, and two connecting sleeves 23 are provided with synchronous driving mechanism, and it is integrally provided with the metering pump driving shaft body clamping structure of automatic centering, its fixed seat 11 is slidably installed with two fixed blocks 21 in up-down symmetry, its two fixed blocks 21 are symmetrically arranged about the central axis of center groove 14 of its fixed seat 11, while its two fixed blocks 21 are provided with synchronous driving mechanism, the synchronous towards or is apart from movement of two fixed blocks 21 can be carried out, so when two fixed blocks 21 are clamped metering pump driving shaft, the center line of the center groove 14 of its fixed seat 11 can be coaxially arranged with the metering pump driving shaft, without manually adjusting the installation height of fixed seat 11 to adapt the processing equipment of metering pump driving shaft, save time and effort.

[0025] The top wall center position of second sliding slot 13 is provided with through hole 15, and cooperating sleeve 25 is fixedly installed in through hole 15, and synchronous driving mechanism includes drive rod 26 rotatably connected in cooperating sleeve 25, drive rod 26 top end is fixedly connected with crank handle 27, and shaft seat is fixedly installed in the bottom wall center position of second sliding slot 13, and drive rod 26 is fixedly connected to the rotating end above the shaft seat, and the synchronous driving mechanism adopts the structure design of same drive rod 26, and the upper end of annular outer side wall and the lower end of annular outer side wall on the annular outer side wall of its drive rod 26 are provided with opposite screw grooves, and one matched threaded sleeve 24 is respectively screw-connected outside screw groove, and threaded sleeve 24 is respectively fixedly installed in the connecting sleeve 23 of its corresponding one side fixed block 21, when drive rod 26 is rotated through crank handle 27, two fixed blocks 21 can be driven to move towards or apart from synchronously, which is more convenient.

[0026] The upper end and the lower end of the annular outer side wall of the driving rod 26 are provided with opposite threaded grooves, and one matched threaded sleeve 24 is threadedly connected to the outer side of each threaded groove. A fixing groove for fixing and mounting the threaded sleeve 24 is formed between the upper and lower side walls of the connecting sleeve 23. The driving rod 26 can apply force to the two threaded sleeves 24. Since the threaded sleeves 24 are fixedly connected in the connecting sleeve 23, and the connecting sleeve 23 is slidingly connected in the second sliding groove 13, the threaded sleeves 24 can drive the two connecting sleeves 23 to move synchronously towards or away from each other, that is, drive the two fixing blocks 21 to move synchronously towards or away from each other.

[0027] A recess 16 is formed in the middle of each top end of the fixed seat 11. A mounting hole 17 is formed in the center of the bottom wall of the recess 16. The overall metering pump driving shaft machining jig can be fixedly installed on the corresponding mounting station by assembling the two mounting holes 17 of the fixed seat 11.

[0028] Limiting sliding grooves 28 are formed in the two sides of the front and rear ends of the fixing block 21. Limiting sliding strips 18 for sliding connection of the limiting sliding grooves 28 are formed in the inner side walls of the front and rear ends of the first sliding groove 12. The limiting sliding strips 18 play a stable limiting role in the movement of the fixing block 21. An assembly groove is formed in the other end of the fixing block 21. Three guide wheels 29 are rotatably installed in the assembly groove at equal distances from top to bottom. The guide wheels 29 are rollingly connected to the inner wall of the first sliding groove 12. The guide wheels 29 play a smooth guiding role in the movement of the fixing block 21.

[0029] The working principle of the utility model is: the overall setting has the automatic centering metering pump driving shaft body clamping structure, its fixed seat 11 is slidingly installed with two fixing blocks 21 in upper and lower symmetry, and the two fixing blocks 21 are arranged in upper and lower symmetry about the central axis of the central groove 14 of the fixed seat 11. Meanwhile, the two fixing blocks 21 are provided with a synchronous driving mechanism. The synchronous driving mechanism adopts the same driving rod 26 structure design. The upper end and the lower end of the annular outer side wall of the driving rod 26 are provided with opposite threaded grooves, and one matched threaded sleeve 24 is threadedly connected to the outer side of each threaded groove. The threaded sleeve 24 is fixedly installed in the connecting sleeve 23 of the corresponding one side of the fixing block 21. When the driving rod 26 is rotated by the rocking handle 27, the two fixing blocks 21 can be driven to move synchronously towards or away from each other. When the two fixing blocks 21 clamp the metering pump driving shaft, the metering pump driving shaft can be automatically arranged in coaxial with the center line of the central groove 14 of the fixed seat 11. It is not necessary to manually adjust the installation height of the fixed seat 11 to adapt to the machining equipment of the metering pump driving shaft, which saves time and effort.

[0030] The above merely describes a preferred embodiment of the present application, and the protection scope of the present application is not limited thereto, and any skilled person in the art, according to the technical scheme and the inventive concept of the present application, makes equivalent replacement or change within the technical range disclosed by the present application, which should be covered within the protection scope of the present application.

Claims

1. A machining fixture for the drive shaft of a metering pump, comprising a housing mechanism (1), wherein a clamping and fixing mechanism (2) is provided inside the housing mechanism (1); Its features are: The outer shell mechanism (1) includes a fixed seat (11), a first sliding groove (12) is provided at the center of the fixed seat (11), a second sliding groove (13) is provided at the middle of one end of the first sliding groove (12), and a center groove (14) is provided at the center of each of the front and rear side walls of the first sliding groove (12). The clamping and fixing mechanism (2) includes a fixing block (21) that is slidably connected in the first slide groove (12) in an up-down symmetrical manner. The two fixing blocks (21) are arranged in an up-down symmetrical manner about the central axis of their central groove (14). Multiple auxiliary fixing grooves (22) are opened on the inclined surfaces of the two fixing blocks (21) facing each other. A connecting sleeve (23) is fixedly connected to the center of one end of the fixed block (21). The two connecting sleeves (23) are slidably connected in the second slide groove (13), and the two connecting sleeves (23) are equipped with a synchronous drive mechanism.

2. The machining fixture for the drive shaft of a metering pump according to claim 1, characterized in that: A through hole (15) is provided at the center of the top wall of the second slide (13), and a mating sleeve (25) is fixedly installed in the through hole (15).

3. The jig for machining the drive shaft of a metering pump according to claim 1, characterized in that: The synchronous drive mechanism includes a drive rod (26) rotatably connected within the mating sleeve (25), and a crank handle (27) is fixedly connected to the top end of the drive rod (26).

4. A machining fixture for the drive shaft of a metering pump according to claim 3, characterized in that: The upper and lower ends of the annular outer wall of the drive rod (26) are provided with opposite threaded grooves, and a matching threaded sleeve (24) is threadedly connected to the outer side of each of the two threaded grooves.

5. A machining fixture for the drive shaft of a metering pump according to claim 1, characterized in that: The connecting sleeve (23) has a fixing groove between its upper and lower side walls for fixing the threaded sleeve (24) in place.

6. A machining fixture for the drive shaft of a metering pump according to claim 1, characterized in that: A rotating shaft seat is fixedly installed at the center of the bottom wall of the second chute (13), and a drive rod (26) is fixedly connected to the rotating end above the rotating shaft seat.

7. A machining fixture for the drive shaft of a metering pump according to claim 1, characterized in that: The top center of each side of the fixed base (11) is provided with a groove (16), and the center of the bottom wall of the groove (16) is provided with an installation hole (17).

8. A machining fixture for the drive shaft of a metering pump according to claim 1, characterized in that: The fixed block (21) has a limiting groove (28) on both sides of the front and rear ends, and the inner sidewalls of the first groove (12) are provided with a limiting strip (18) for sliding connection of the limiting groove (28).

9. A machining fixture for the drive shaft of a metering pump according to claim 1, characterized in that: An assembly groove is provided at the middle of the other end of the fixing block (21). Three guide wheels (29) are installed in the assembly groove at equal intervals from top to bottom. The guide wheels (29) are rolled to connect to the inner wall of the first sliding groove (12).

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