CN206382895U - Positioning fixture and its trigger mechanism - Google Patents

Abstract

The utility model relates to a positioning jig and trigger mechanism thereof, this positioning jig include PMKD, install locating plate on PMKD and install the trigger mechanism on the locating plate. The positioning plate is provided with a containing groove and a plurality of fixed flanges. The touch mechanism comprises a touch component, a first movable flange and a second movable flange which are arranged on the positioning plate, the touch component is positioned in the accommodating groove, and the first movable flange and the second movable flange are positioned at the end part of the accommodating groove and are abutted against the touch component. The touch component drives the first movable retaining edge and the second movable retaining edge to slide inwards or outwards. The positioning jig can drive the first movable flange and the second movable flange to simultaneously move and clamp a workpiece through the touch component in the touch mechanism, and has the advantages of strong universality, less required power source, synchronous clamping, accurate positioning and high practicability.

Description

Positioning fixture and its trigger mechanism

technical field

The utility model relates to the technical field of mechanical automation spare parts processing, in particular to a positioning jig and an actuating mechanism thereof.

Background technique

With the continuous development of society, the degree of mechanical automation is getting higher and higher. In the field of spare parts processing, CNC machine tools have played an irreplaceable role. When processing workpieces (mobile phone shells, tablets, etc.), the workpieces must be fixed. , to facilitate drilling, tapping and other processes. Fixing of the workpiece is performed by positioning jigs, but the existing positioning jigs generally set corresponding positioning jigs for one type of workpiece, which has poor versatility, resulting in increased investment costs and low economic benefits. Moreover, the existing positioning jig requires many power sources, and the clamping in different directions is not synchronized, which affects the clamping effect, and the positioning is not accurate, so the processing quality cannot be guaranteed.

Utility model content

Based on this, it is necessary to address the problems existing in the existing positioning jigs, and provide a positioning jig and its actuating mechanism with strong versatility, less power source required, synchronous clamping, and accurate positioning.

A trigger mechanism, including a trigger component, a first moving rib and a second moving rib, the trigger component includes a trigger rod, a push rod, push rods on two sides and a guide block, the push rod and the trigger rod One end is connected with the first moving rib, the side push rod extends outward from one side of the trigger lever and is opposite to the second moving rib, and the guide block is clipped on the On the trigger rod; the push rod pushes the first moving rib in the first direction, and the side push rod pushes the second moving rib in the second direction, and the first direction and the second direction form an angle between them.

The above-mentioned actuating mechanism mainly includes an actuating component, a first moving rib and a second moving rib. Since the trigger assembly includes a trigger rod, a push rod connected with the trigger rod and a side push rod, when in use, the push rod and the side push rod are driven by the trigger rod to move at the same time to move outward to the first moving rib and the second moving rib , can realize a power source to push the workpiece to move in multiple directions.

In one of the embodiments, a trigger cam is provided on the end of the trigger rod away from the push rod, and a roller cam is provided on the end of the side push rod away from the trigger rod.

In one of the embodiments, the first movable rib includes a first guide seat, a first guide slider, a first rib block, and a first return spring; the first guide slider is slidably arranged on the On the first guide seat and opposite to the push rod, the first edge block is installed on the first guide slider, and the first return spring is located on the first guide seat and the first guide slider. between.

In one of the embodiments, the first guide seat is provided with two sliding rods and a return spring of the trigger rod, the slide rod is slidably arranged on the trigger rod, and the reset spring of the trigger rod is sleeved on the slide rod superior.

In one of the embodiments, the second movable rib includes a second guide seat, a second guide slider, a second rib block, and a second return spring; the second guide slider is slidably arranged on the On the second guide seat and opposite to the side push rod, the second edge block is installed on the second guide slider, and the second return spring is located on the second guide seat and the second guide slider. between the blocks; the second guide slider is provided with a guide slope, and the guide slope is opposite to the roller cam.

A positioning fixture, comprising: a fixed base plate, a positioning plate installed on the fixed base plate, and a touch mechanism installed on the positioning plate; the positioning plate is provided with accommodating grooves and several fixed ribs; The trigger mechanism includes a trigger component installed on the positioning plate, a first moving rib and a second moving rib, the trigger component is located in the accommodating groove, the first moving rib, the second moving rib The moving rib is located at the end of the accommodating groove and abuts against the actuating component; the actuating component drives the first moving rib and the second moving rib to slide inwardly or outwardly.

The above-mentioned positioning jig mainly consists of a fixed base plate, a positioning plate and an actuating mechanism, wherein the actuating mechanism includes an actuating component, a first moving rib and a second moving rib. When in use, the touch assembly simultaneously touches the first moving rib, and the second moving rib slides outward on the positioning plate until a clamping space larger than the workpiece is formed, and then the workpiece is placed on the positioning plate, the first moving rib, the second moving rib 2. The moving rib automatically retracts and clamps the workpiece. Since the position of the fixed rib is fixed, the moving distance of the first movable rib and the second movable rib can be changed according to the size of the workpiece, and then retracted and clamped, which has strong versatility. The first moving sidewall and the second moving sidewall can realize clamping synchronization and accurate positioning through the touch assembly, and only one power source is needed, which is very practical.

In one of the embodiments, the positioning plate is also provided with several positioning bushings, positioning pins and suction cups, the positioning bushings are located on both sides of the first moving rib, and the suction cups are arranged on the positioning plate on the middle part.

In one embodiment, a vacuum pipe connector and a plurality of vacuum channel holes are provided on the fixed base plate, the vacuum pipe connector communicates with the vacuum channel hole, and the vacuum channel hole communicates with the suction cup.

In one of the embodiments, the trigger assembly includes a trigger rod, a push rod, two side push rods and a guide block, the push rod is connected to one end of the trigger rod and is opposite to the first moving rib, The side push rod extends outward from one side of the trip rod and is opposite to the second moving rib, and the guide block is clipped on the trip rod.

In one of the embodiments, a trigger cam is provided on the end of the trigger rod away from the push rod, and a roller cam is provided on the end of the side push rod away from the trigger rod.

Description of drawings

Fig. 1 is the schematic diagram of the positioning jig of a preferred embodiment of the utility model;

Fig. 2 is a schematic diagram of a state of the positioning jig shown in Fig. 1;

Fig. 3 is an exploded view of the positioning jig shown in Fig. 1;

Fig. 4 is another exploded view of the positioning jig shown in Fig. 3;

Fig. 5 is a schematic diagram of the middle touch assembly shown in Fig. 3;

Fig. 6 is a schematic diagram of the first moving rib shown in Fig. 3;

Fig. 7 is a schematic diagram of the second moving rib shown in Fig. 3;

Notes on drawings:

10-positioning jig, 20-fixed bottom plate, 21-vacuum pipe connector, 22-vacuum pipe passage hole, 23-installation groove, 24-installation hole, 30-touch mechanism, 31-positioning plate, 32-touch assembly, 33-the first One moving rib, 34-the second moving rib, 35-fixed rib, 36-locating bushing, 37-locating pin, 38-suction cup, 311-positioning pin hole, 312-accommodating groove, 313-opening , 321-touch lever, 322-push rod, 323-side push rod, 324-guide block, 325-touch cam, 326-roller cam, 331-first guide seat, 332-first guide slider, 333- The first rib, 334-the first return spring, 335-sliding bar, 336-the return spring of the trigger lever, 337-the first adjusting screw, 341-the second guide seat, 342-the second guide slider, 343-the second Rib, 344-the second back-moving spring, 345-guiding slope, 346-the second adjusting screw.

detailed description

In order to facilitate the understanding of the utility model, the utility model will be described more fully below with reference to the relevant drawings. Preferred embodiments of the utility model are provided in the accompanying drawings. However, the invention can be embodied in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the understanding of the disclosure of the present utility model more thorough and comprehensive.

It should be noted that when an element is referred to as being “fixed” to another element, it can be directly on the other element or there can also be an intervening element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or intervening elements may also be present.

Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the technical field of this invention. The terminology used in the description of the utility model herein is only for the purpose of describing specific embodiments, and is not intended to limit the utility model.

Please refer to FIG. 1 to FIG. 7, which are a positioning jig 10 of a preferred embodiment of the present invention. The positioning jig 10 is mainly for positioning workpieces processed on CNC machine tools, such as mobile phone casings, tablets, and the like. The positioning fixture 10 includes a fixed base plate 20, a positioning plate 31 installed on the fixed base plate 20, and a touch mechanism 30 installed on the positioning plate 31; during use, the workpiece to be processed is placed on the positioning plate 31, and then passed The trigger mechanism 30 performs positioning, and then moves the workpiece to the processing position for processing.

The fixed bottom plate 20 is provided with a vacuum pipe connector 21, several vacuum passage holes 22, a mounting groove 23, and three installation holes 24. In this embodiment, there are four vacuum passage holes 22, and the vacuum pipe connector 21 communicates with the vacuum passage holes 22. The vacuum pipe joint 21 is connected with an external vacuum machine during use to control the air flow in the vacuum channel. Mounting groove 23 is positioned at the bottom of fixed bottom plate 20, and mounting hole 24 is positioned at one side of fixed bottom plate 20, and mounting groove 23 is used for external parts connection, and as being connected with slide rail, fixed bottom plate 20 just can move on slide rail through mounting groove 23 , The mounting hole 24 can be used to install some external components, such as connecting boards, auxiliary boards and so on.

The trigger mechanism 30 is used to be installed on the positioning jig 10, and the trigger mechanism 30 includes a trigger assembly 32 installed on the positioning plate 31, a first moving rib 33, a second moving rib 34, specifically, the second moving rib The number of sides 34 is two. The positioning plate 31 is provided with an accommodating groove 312 and a number of fixed ribs 35, the number of the fixed ribs 35 is four, the positioning plate 31 is connected with the fixed bottom plate 20, and the touch assembly 32 is located in the accommodating groove 312 at the bottom of the positioning plate 31 , the first moving rib 33 and the second moving rib 34 are located at the end of the accommodation groove 312 and abut against the actuating assembly 32, and the actuating assembly 32 drives the first moving rib 33 and the second moving rib 34 to slide outward or swipe in. The first movable rib 33 and the second movable rib 34 are slidably arranged on the positioning plate 31, and the fixed rib 35 is arranged on the edge of the positioning plate 31; At the width end, the second movable rib 34 is located at the length end of the positioning plate 31, and every two fixed ribs 35 are set on the positioning plate 31, the first movable rib 33, and the second movable rib 34. On the opposite side, the fixed rib 35 can be disassembled and replaced from the positioning plate 31 according to actual needs.

In one embodiment, the positioning plate 31 is further provided with several positioning bushes 36 , positioning pins 37 and suction cups 38 , the number of positioning bushes 36 is two, and the number of suction cups 38 is four. The positioning bushing 36 is arranged on the positioning plate 31 and is arranged opposite to the first moving rib 33. The two positioning bushings 36 are respectively located on both sides of the first moving rib 33. The positioning bushing 36 is used to cooperate with the external positioning rod. Preliminary positioning is carried out to the entire positioning plate 31 . The positioning pin 37 is arranged on the positioning plate 31, and the suction cup 38 is arranged on the middle part of the positioning plate 31. The four suction cups 38 form a square, and each suction cup 38 communicates with the vacuum channel hole 22 one by one.

In yet another embodiment, the positioning plate 31 is provided with several positioning pin holes 311, a receiving groove 312 and two openings 313, the positioning pin holes 311 are used to install the positioning pin 37, the operator can Select the corresponding positioning pin hole position 311 to install the positioning pin 37, so that the positioning pin 37 can locate the workpiece. The accommodating groove 312 is located at the bottom of the positioning plate 31. The accommodating groove 312 is adapted to the actuating assembly 32 and accommodates the actuating assembly 32. The accommodating groove 312 has an accommodating gap, and the actuating assembly 32 can move within the accommodating gap. The two openings 313 are respectively on opposite sides of the positioning plate 31, so that the finished workpiece can be easily taken out from the positioning plate 31, and fingers can be inserted into and contacted with the workpiece.

Please refer to Figure 5, the trigger assembly 32 includes a trigger rod 321, a push rod 322, two side push rods 323 and two guide blocks 324, the trigger rod 321 is accommodated in the accommodation groove 312 and one end protrudes from the positioning plate 31 , the push rod 322 is connected to one end of the trigger rod 321 and is opposite to the first moving rib 33 , and the side push rod 323 extends outward from one side of the trigger rod 321 and is opposite to the second moving rib 34 . The push rod 322 pushes the first movable sidewall 33 in the first direction, and the side push rod 323 pushes the second movable sidewall 34 in the second direction, and an included angle is formed between the first direction and the second direction. The guide block 324 is clamped on the trigger rod 321 , and the two guide blocks 324 are located between the two side push rods 323 . The entire touch assembly 32 is accommodated in the accommodating groove 312 through the guide blocks 324 and can move along a fixed direction. In order to strengthen the compliance of the contact rod 321 and the side push rod 323 against other parts and protect the contact surface, the end of the contact rod 321 away from the push rod 322 is provided with a contact cam 325, and the end of the side push rod 323 away from the contact rod 321 There is a roller cam 326 at the top. The actuating mechanism 30 mainly includes an actuating assembly 32 installed on the positioning plate, a first moving sidewall 33 and a second moving sidewall 34 . Because the touch assembly 32 includes a touch lever 321, a push lever 322 connected with the touch lever 321 and a side push lever 323, when in use, the push lever 322 and the side push lever 323 are driven by the touch lever 321 to move simultaneously to the first moving rib 33 1. The outward movement of the second moving rib 34 can realize the movement of the workpiece in multiple directions by one power source.

Please refer to Fig. 6, the first moving rib 33 includes a first guide seat 331, a first guide slider 332, a first rib block 333, a first return spring 334, on the first guide seat 331 positioning plate 31, the first A guide slider 332 is located on the first guide seat 331 and is opposite to the push rod 322, the first edge block 333 is installed on the first guide slider 322, the first return spring 334 is located on the first guide seat 331, the first Between the guide sliders 332. The first guide seat 331 is provided with two slide bars 335, a trip bar return spring 336, the slide bar 335 is slidably arranged on the trip bar 321, the trip bar return spring 336 escapes on the slide bar 335, and the two bars of the trip bar return spring 336 ends abut against the trigger rod 321 and the first guide seat 311 respectively. A first adjusting screw 337 is provided on the first guiding seat 331, and the first adjusting screw 337 can be twisted to adjust the first return spring 334 so as to achieve the best performance.

Please refer to Fig. 7, the second moving rib 34 includes a second guide seat 341, a second guide slider 342, a second edge block 343, and a second return spring 344, and the second guide seat 341 is fixed on the positioning plate 31 , the second guide slider 342 is slidably arranged on the second guide seat 341 and is opposite to the side push rod 323, the second edge block 343 is installed on the second guide slider 342, and the second return spring 344 is located on the second guide seat 341 , between the second guide slider 342 . The second guide slider 342 is provided with a guide slope 345, the guide slope 345 is opposite to the roller cam 326, the guide slope 345 facilitates the abutment of the roller cam 326 of the side push rod 323, thereby smoothly driving the second guide slider 342 to move . A second adjusting screw 346 is provided on the second guiding seat 341 , and the second adjusting screw 346 can be twisted to adjust the second return spring 344 so as to achieve the best performance.

When the positioning jig 10 is in use, the trigger rod 321 is squeezed by an external force, thereby driving the push rod 322 and the side push rod 323 to move outward at the same time, only one power source is needed, and then the workpiece is placed on the positioning plate 31 . After the workpiece is put into the positioning plate 31, the first edge block 333 and the second edge block 343 move inward under the action of the first return spring 334 and the second return spring 344 respectively to clamp the workpiece in the X/Y direction. Then the suction cup 38 ensures that the entire plane of the workpiece is tightly attached to the positioning plate 31 from the Z direction through vacuum, and with the auxiliary positioning of the positioning pin 37, the workpiece is precisely and firmly fixed on the positioning plate 31, which is convenient for precision operations. After the operation is completed, the trigger rod 321 is pushed inward under the action of external force, and while the push rod 322 pushes away the first guide slider 332, the second guide slider 342 is squeezed by the roller cam 326 of the side push rod 323 Also move outwards and open, sucker 38 is also disconnected by electric control at this moment, thereby realizes X/Y/Z direction to unclamp the workpiece that operation has finished simultaneously, is convenient to manual or robot to take away workpiece. Finally, the trigger lever 321 will automatically reset under the action of the trigger lever return spring 336, so that the first movable rib 33 and the second movable rib 34 are in the retracted state as shown in Figure 1, and Figure 2 shows the first movable rib The side 33 and the second movable sidewall 34 are in the stretched open state.

The technical features of the above-mentioned embodiments can be combined arbitrarily. To make the description concise, all possible combinations of the technical features in the above-mentioned embodiments are not described. However, as long as there is no contradiction in the combination of these technical features, should be considered as within the scope of this specification.

The above-mentioned embodiments only express several implementation modes of the utility model, and the description thereof is relatively specific and detailed, but it should not be understood as limiting the scope of the utility model patent. It should be noted that those skilled in the art can make several modifications and improvements without departing from the concept of the utility model, and these all belong to the protection scope of the utility model. Therefore, the scope of protection of the utility model patent should be based on the appended claims.

Claims (10)

1. a kind of actuating mechanism, it is characterised in that described to touch including triggering component, the first movement rib and the second movement rib Dynamic component includes a touch pole, catch bar, two side push rods and guide pad, the catch bar be connected with one end of the touch pole and Relative with the described first movement rib, the side of side push rod from the touch pole stretches out and kept off with the described second movement Side is relative, and the guide pad is fastened on the touch pole；The catch bar promotes the first movement gear in a first direction Side, the side push rod promotes the second movement rib in a second direction, is constituted between the first direction and second direction One angle.

2. actuating mechanism according to claim 1, it is characterised in that end of the touch pole away from the catch bar is set There is a shake-up cam, the end of the side push rod away from the touch pole is provided with a roller cam.

3. actuating mechanism according to claim 1, it is characterised in that the first movement rib includes one first and is oriented to Seat, the first guide runner, the first rib block, (the first back-moving spring；First guide runner is slidedly arranged on first guide holder Upper and relative with the catch bar, the first rib block is installed on first guide runner, the (the first back-moving spring Between first guide holder, the first guide runner.

4. actuating mechanism according to claim 3, it is characterised in that first guide holder is provided with two slide bars, shake-up Bar back-moving spring, the slide bar is slidedly arranged on the touch pole, and the touch pole back-moving spring is placed on the slide bar.

5. actuating mechanism according to claim 4, it is characterised in that the second movement rib includes one second and is oriented to Seat, the second guide runner, the second rib block, second back-moving spring；Second guide runner is slidedly arranged on second guide holder Upper and relative with the side push rod, the second rib block is installed on second guide runner, the second back-moving spring Between second guide holder, the second guide runner；Second guide runner is provided with a guiding surface.

6. a kind of localization tool, it is characterised in that including：Fixed bottom plate, the location-plate being installed on the fixed bottom plate and peace Loaded on the actuating mechanism on the location-plate；The location-plate is provided with storage tank and some fixed ribs；The actuating mechanism Including the triggering component being installed on the location-plate, the first movement rib and the second movement rib, the triggering component is located at In the storage tank, it is described first movement rib, second movement rib be located at the storage tank end and with the shake-up group Part is abutted；Triggering component driving the first movement rib, the second movement rib are inwardly or outwardly slided.

7. localization tool according to claim 6, it is characterised in that the location-plate is additionally provided with some positioning bushings, determined Position pin and sucker, the positioning bushing are located at the both sides of the described first movement rib, and the sucker is located in the location-plate Between on position.

8. localization tool according to claim 7, it is characterised in that the fixed bottom plate provided with a vacuum tube joint and Some vacuum passage holes, the vacuum tube joint is connected with the vacuum passage hole, and the vacuum passage hole connects with the sucker It is logical.

9. localization tool according to claim 6, it is characterised in that the triggering component include a touch pole, catch bar, Two side push rods and guide pad, one end connection and with described first movement rib relative, institute of the catch bar with the touch pole The side for stating side push rod from the touch pole stretches out and relative with the described second movement rib, and the guide pad is fastened in institute State on touch pole.

10. localization tool according to claim 9, it is characterised in that end of the touch pole away from the catch bar Cam is touched provided with one, the end of the side push rod away from the touch pole is provided with a roller cam.