CN112658751B

CN112658751B - Fixture for CNC (computer numerical control) platform and product positioning method

Info

Publication number: CN112658751B
Application number: CN202011482166.3A
Authority: CN
Inventors: 刘启华; 石坚; 王士坤
Original assignee: Kunshan Huayu Automation Technology Co ltd
Current assignee: Kunshan Huayu Automation Technology Co ltd
Priority date: 2020-12-16
Filing date: 2020-12-16
Publication date: 2022-10-04
Anticipated expiration: 2040-12-16
Also published as: CN112658751A

Abstract

The invention relates to a fixture for a CNC (computer numerical control) platform and a positioning method of a product. The movable block driving mechanism is connected with the movable block, a stop block mounted on the frame is arranged at one end in the length direction of the flow channel, a push block mechanism mounted on the support plate is arranged on the outer side of the other end in the length direction of the flow channel, a first pressing plate mechanism and a second pressing plate mechanism are respectively arranged on two sides in the width direction of the flow channel, and the first pressing plate mechanism and the second pressing plate mechanism are used for applying pressure to products in the flow channel together to enable the products to be positioned in the flow channel. The fixture is convenient for positioning products with smaller sizes.

Description

Fixture for CNC (computer numerical control) platform and product positioning method

Technical Field

The invention relates to the field of production of CNC platforms, in particular to a fixture for a CNC platform and a product positioning method.

Background

Some products in the 3C electronics industry are small and complex in processing technology, and require CNC (Computer numerical control) processing centers for processing. However, the product is small, the traditional clamp is inconvenient to clamp the product, and the traditional clamp for positioning is not intelligent enough and cannot adapt to an automatic production line.

Disclosure of Invention

Based on this, it is necessary to provide a fixture for a CNC platform, aiming at the problem that the conventional fixture is inconvenient to position the product with smaller size.

A clamp for a CNC platform comprises a carrier plate,

the carrier plate is provided with a frame, the top end of the frame is provided with a reference block and a movable block at intervals, the reference block is fixed on the frame, a flow passage is arranged between the reference block and the movable block,

one side wall of the reference block facing the flow channel is a positioning wall,

the movable block is connected with a movable block driving mechanism, the movable block driving mechanism is used for driving the movable block to move towards the reference block, so that the product in the flow channel is abutted against the positioning wall,

a stop block arranged on the frame is arranged at one end of the flow passage in the length direction, a push block mechanism arranged on the support plate is arranged at the outer side of the other end of the flow passage in the length direction, the push block mechanism is used for pushing a product in the flow passage towards the stop block,

the two sides of the width direction of the flow channel are respectively provided with a first pressing plate mechanism and a second pressing plate mechanism, and the first pressing plate mechanism and the second pressing plate mechanism are used for applying pressure to the product in the flow channel together to enable the product to be positioned in the flow channel.

The clamp is convenient for positioning a product with a small size, and after the product enters the flow channel, the product can be respectively positioned in the X direction, the Y direction and the Z direction through the corresponding mechanisms. So that the product is firmly fixed in the flow passage.

In one of them embodiment, movable block actuating mechanism includes the splint, splint include supporting part and drive division, be provided with the support groove on the supporting part, the movable block sets up in supporting the inslot, the junction and the frame pin joint of supporting part and drive division, the supporting part with contained angle between the drive division is the obtuse angle, the one end pin joint that the support part was kept away from to the drive division has splint drive assembly.

In one embodiment, the number of the splint driving assemblies is two, and the two splint driving assemblies are arranged at intervals.

In one embodiment, the clamping plate driving assembly comprises a transmission block pivoted with the driving part, a transmission block driving cylinder used for driving the transmission block to move, and a first supporting seat pivoted with the transmission block driving cylinder.

In one embodiment, the first pressing plate mechanism comprises a pressing plate and a pressing plate driving assembly, the pressing plate comprises a pressing portion and a connecting portion, the pressing portion is used for applying pressure to a product, the pressing plate driving assembly comprises a driving plate, a first connecting block, a second connecting block, a base, a middle block and a middle block driving assembly, the driving plate comprises a head portion, a tail portion and a middle portion located between the head portion and the tail portion, the head portion is connected with the connecting portion, the middle portion is pivoted with the frame, the tail portion is pivoted with one end of the first connecting block, the other end of the first connecting block is pivoted with one end of the second connecting block, the other end of the second connecting block is pivoted with the base, one end of the middle block is respectively pivoted with the first connecting block and the second connecting block, the other end of the middle block is connected with the middle block driving assembly, and the middle block driving assembly comprises a middle block driving cylinder and a second supporting seat pivoted with the middle block driving cylinder.

In one embodiment, the structure of the second pressing plate mechanism is the same as that of the first pressing plate mechanism.

In one embodiment, the pusher mechanism includes a pusher and a pusher drive assembly coupled to the pusher.

The positioning method of the product for the CNC platform comprises the fixture,

firstly, a driving force in the X direction is applied to the product through a push block mechanism to position the product in the X direction,

then a driving force in the Y direction is applied to the product through the movable block driving mechanism and the movable block, so that the product is positioned in the Y direction,

and then applying Z-direction pressure to the product through the first pressing plate mechanism and the second pressing plate mechanism to position the product in the Z direction.

Drawings

Fig. 1 is a top view of a fixture for a CNC platform of an embodiment of the present invention.

Fig. 2 is a side view of a fixture for a CNC platform of an embodiment of the present invention.

Fig. 3 is a perspective view of a fixture for a CNC platform of an embodiment of the present invention.

Fig. 4 is a schematic view of a clamp plate and clamp plate drive assembly of a clamp for a CNC platform of an embodiment of the present invention.

Fig. 5 is a schematic view of a datum block and locating wall of a fixture for a CNC platform of an embodiment of the present invention.

Wherein:

110. support plate

120. Rack

130. Reference block 131, positioning wall

140. Movable block

150. Movable block drive mechanism 151, clamp plate 151a, drive portion 151b, and support portion

151c, a support groove 152, a transmission block 153, a transmission block driving cylinder 154, a first support base

160. Stop block

171. Push block 172 and push block driving assembly

180. First pressing plate mechanism

181. Pressing plate 181a, connecting part 181b, and pressing part

182. Drive plate 182a, tail 182b, middle 182c, head

183. First connecting block 184, intermediate block 185, second connecting block

186. Base 187, intermediate block driving cylinder 188 and second support seat

190. Second pressing plate mechanism 200 and product

Detailed Description

In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in detail below. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. This invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein, as those skilled in the art will recognize without departing from the spirit and scope of the present invention.

It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. 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 defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention.

As shown in fig. 1, an embodiment of the present invention provides a fixture for a CNC platform, which includes a carrier plate 110, a frame 120 is disposed on the carrier plate 110, a reference block 130 and a movable block 140 are disposed at an interval at a top end of the frame 120, the reference block 130 is fixed on the frame 120, a flow channel is disposed between the reference block 130 and the movable block 140, and a side wall of the reference block 130 facing the flow channel is a positioning wall 131.

The movable block 140 is connected to a movable block driving mechanism 150, and the movable block driving mechanism 150 is configured to drive the movable block 140 to move towards the reference block 130, so that the product in the flow channel abuts against the positioning wall 131.

A stop block 160 mounted on the frame 120 is arranged at one end of the flow channel in the length direction, and a push block mechanism mounted on the support plate 110 is arranged at the outer side of the other end of the flow channel in the length direction and used for pushing a product in the flow channel towards the stop block 160.

The two sides of the width direction of the flow channel are respectively provided with a first pressing plate mechanism 180 and a second pressing plate mechanism 190, and the first pressing plate mechanism 180 and the second pressing plate mechanism 190 are used for applying pressure to the product in the flow channel together to enable the product to be positioned in the flow channel.

When the clamp is used, the products arranged in the array are firstly placed into the flow channel, then the products are pushed through the push block 171 mechanism, and the products are abutted against the stop block 160. This achieves positioning of the product in the X direction.

Then, the product is pushed toward the positioning wall 131 by the movable block 140 and the movable block driving mechanism 150, so that the product abuts against the positioning wall 131 and is pushed by the movable block 140, and the product is positioned in the Y direction.

Finally, the product is pressed in the Z direction by the first platen mechanism 180 and the second platen mechanism 190 so that the product is positioned in the Z direction.

Through the mode, the product is respectively positioned in the X direction, the Y direction and the Z direction. The X, Y and Z directions are perpendicular to each other. This allows the product to be positioned in three dimensions.

In this embodiment, the movable block driving mechanism 150 includes a clamping plate 151, the clamping plate 151 includes a supporting portion 151b and a driving portion 151a, a supporting groove 151c is provided on the supporting portion 151b, the movable block 140 is disposed in the supporting groove 151c, the intersection of the supporting portion 151b and the driving portion 151a is pivoted with the frame 120, the supporting portion 151b and the included angle between the driving portions 151a is an obtuse angle, and a clamping plate 151 driving assembly is pivoted at one end of the driving portion 151a away from the supporting portion 151 b.

The driving part 151a is driven by the driving assembly of the clamping plate 151 to move backward, so that the supporting part 151b is driven to move forward, and the movable blocks 140 are driven to move forward together, so that the movable blocks 140 apply thrust to the product, and the product abuts against the positioning wall 131.

Specifically, the number of the clamping plates 151 is two, and the two clamping plates 151 are arranged at intervals. This arrangement on the one hand makes the driving force of the clamping plate 151 more uniform and the reaction of the clamping plate 151 more rapid. On the other hand, the space between the two clamping plates 151 and the driving assembly is available for mounting other elements, which is beneficial to make the whole clamp compact.

Specifically, the driving assembly of the clamping plate 151 includes a driving block 152 pivotally connected to the driving portion 151a, a driving block driving cylinder 153 for driving the driving block 152 to move, and a first supporting seat 154 pivotally connected to the driving block driving cylinder 153. The driving block driving cylinder 153 pulls the driving block 152 backward, which causes the driving portion 151a of the clamp plate 151 to move backward, thereby moving the supporting portion 151b and the movable block 140 forward. When the driving block driving cylinder 153 pushes the driving block 152 forward, the driving portion 151a of the clamping plate 151 moves forward, so that the supporting portion 151b and the movable block 140 move backward, thereby releasing the product.

In this embodiment, the first platen mechanism 180 includes a platen 181 and a platen 181 driving assembly, the platen 181 includes a pressing portion 181b and a connecting portion 181a, the pressing portion 181b is configured to apply pressure to a product, the platen 181 driving assembly includes a driving plate 182, a first connecting block 183, a second connecting block 185, a base 186, an intermediate block 184 and an intermediate block 184 driving assembly, the driving plate 182 includes a head portion 182c, a tail portion 182a and an intermediate portion 182b located between the head portion 182c and the tail portion 182a, the head portion 182c is connected to the connecting portion 181a, the intermediate portion 182b is pivotally connected to the frame 120, the tail portion 182a is pivotally connected to one end of the first connecting block 183, the other end of the first connecting block 183 is pivotally connected to one end of the second connecting block 185, the other end of the second connecting block 185 is pivotally connected to the base 186, one end of the intermediate block 184 is pivotally connected to the first connecting block 183 and the second connecting block 185, the other end of the intermediate block 184 is pivotally connected to the intermediate block 184 driving assembly, and the intermediate block 184 includes an intermediate block 187 and a driving cylinder 187 pivotally connected to the second supporting seat 188.

In use, the intermediate block 184 drives the assembly to push the intermediate block 184, causing the drive plate 182 to rotate, such that the head 182c of the drive plate 182 applies pressure to the pressure plate 181, and the pressure plate 181 applies pressure to the product. This allows the product to be oriented in the Z direction. The pressing part 181b of the pressing plate 181 may apply pressure to the edge of the product. Specifically, the front end of the pressing plate 181 may be provided with a protrusion structure for applying pressure to the edge of the product.

Further, as the intermediate block 184 drive assembly retracts the intermediate block 184, the drive plate 182 reverses direction, thereby causing the pressure plate 181 to release the product.

Similarly, the structure of the second pressing plate mechanism 190 is the same as that of the first pressing plate mechanism 180. That is, the second platen mechanism 190 has the same structure and operation principle as the first platen mechanism 180.

In this embodiment, the push block mechanism includes a push block 171 and a push block driving assembly 172 connected to the push block 171. The push block driving assembly 172 may be a cylinder or the like.

When the mechanism is used, the push block 171 is pushed by the push block driving component 172, and the push block 171 applies thrust to a product, so that the product abuts against the stop block 160. After the pusher drive assembly 172 pulls the pusher 171 back, the product is released.

The embodiment of the invention also provides a positioning method for a product of the CNC platform, which comprises the fixture and the following steps:

s100, firstly, applying X-direction driving force to the product through a push block 171 mechanism to position the product in the X direction,

s200, applying a driving force in the Y direction to the product through the movable block driving mechanism 150 and the movable block 140 to position the product in the Y direction,

and S300, applying Z-direction pressure to the product through the first pressing plate mechanism 180 and the second pressing plate mechanism 190 to position the product in the Z direction.

The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.

The above-mentioned embodiments only express several embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the invention. It should be noted that various changes and modifications can be made by those skilled in the art without departing from the spirit of the invention, and these changes and modifications are all within the scope of the invention. Therefore, the protection scope of the present patent should be subject to the appended claims.

Claims

1. A clamp for a CNC platform is characterized by comprising a carrier plate,

the two sides of the width direction of the flow channel are respectively provided with a first pressing plate mechanism and a second pressing plate mechanism, and the first pressing plate mechanism and the second pressing plate mechanism are used for applying pressure to the product in the flow channel together to enable the product to be positioned in the flow channel;

the movable block driving mechanism comprises a clamping plate, the clamping plate comprises a supporting portion and a driving portion, a supporting groove is formed in the supporting portion, the movable block is arranged in the supporting groove, the intersection of the supporting portion and the driving portion is pivoted with the rack, the supporting portion is in an obtuse angle with an included angle between the driving portions, and one end of the driving portion, far away from the supporting portion, is pivoted with a clamping plate driving assembly.

2. The clamp for a CNC platform according to claim 1, wherein the clamp driving assemblies are two in number, the two clamp driving assemblies being spaced apart.

3. The clamp for a CNC platform according to claim 2, wherein the clamping plate driving assembly comprises a driving block pivoted with the driving part, a driving block driving cylinder for driving the driving block to move, and a first supporting seat pivoted with the driving block driving cylinder.

4. The clamp for the CNC platform of claim 1, wherein the first platen mechanism comprises a platen and a platen driving assembly, the platen comprises a pressing portion and a connecting portion, the pressing portion is used for applying pressure to a product, the platen driving assembly comprises a driving plate, a first connecting block, a second connecting block, a base, an intermediate block and an intermediate block driving assembly, the driving plate comprises a head portion, a tail portion and an intermediate portion located between the head portion and the tail portion, the head portion is connected with the connecting portion, the intermediate portion is pivoted with the frame, the tail portion is pivoted with one end of the first connecting block, the other end of the first connecting block is pivoted with one end of the second connecting block, the other end of the second connecting block is pivoted with the base, one end of the intermediate block is respectively pivoted with the first connecting block and the second connecting block, the other end of the intermediate block is connected with the intermediate block driving assembly, and the intermediate block driving assembly comprises an intermediate block driving cylinder and a second supporting seat pivoted with the intermediate block driving cylinder.

5. The clamp for a CNC platform of claim 4 wherein the structure of the second platen mechanism is the same as the structure of the first platen mechanism.

6. The clamp for a CNC platform of claim 1 wherein the push block mechanism includes a push block and a push block drive assembly connected to the push block.

7. A method for positioning a product for a CNC platform, comprising the fixture of any one of claims 1 to 6,