Pressing plate positioning and grabbing device based on CNC machining
By designing a plate positioning device with fast clamping mechanism and electromagnet in CNC processing equipment, the problems of low positioning accuracy and high cost of pressure plates in the prior art are solved, and the reuse and processing accuracy of pressure plates are improved.
Patent Information
- Application Number
- CN202421029121.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-13
- Publication Date
- 2024-12-27
- Estimated Expiration
- 2034-05-13
AI Technical Summary
Due to the lack of positioning characteristics when locating the pressure plate, existing CNC processing equipment needs to add cylinders or standard parts, which increases costs, reduces versatility and accuracy, and the fixture cannot be reused.
A pressure plate positioning and grabbing device based on CNC processing is designed, and the fast clamping mechanism and electromagnet are used to combine the cooperation between the second and third positioning pins and holes to achieve accurate downward positioning and rapid disengagement of the pressure plate to ensure the pressure plate and the product. 1:1 fit and enhance the fixing effect through the electromagnet.
The reuse of the press plate is realized, the weight and cost of the fixture is reduced, the processing accuracy and efficiency are improved, and the positioning accuracy and versatility are ensured.
Smart Images
Figure CN222243758U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of CNC machining auxiliary equipment, in particular to a pressure plate positioning and grabbing device based on CNC machining. Background Art
[0002] At present, with the increasing demand for electronic consumer products, the demand for various communication product processes has also diversified. In some products, it is impossible to add positioning features to achieve the positioning of the pressure plate, so it is necessary to add some additional cylinders or other standard parts to solve the problem of pressure plate positioning, and the shape of the fixture will also increase to carry these cylinders and standard parts, which will result in high cost, poor versatility and low positioning accuracy. In addition, the weight of the fixture will also increase, and the fixture cannot be reused. Utility Model Content
[0003] One advantage of the utility model is that it provides a pressure plate positioning and grasping device based on CNC processing, which is particularly suitable for the situation of processing the maximum shape of the product. The pressure plate is placed on the top of the product in a clamping state through a quick clamping mechanism, and precise downward positioning is achieved through the cooperation of a second positioning pin and a second positioning hole, so that the pressure plate and the product are fitted 1:1, and then the pressure plate is converted to a disengaged state to remove the clamping mechanism, and the pressure plate is taken out after the processing is completed, thereby realizing the reuse of the pressure plate, saving costs, ensuring positioning accuracy, and high processing efficiency.
[0004] One advantage of the utility model is that it provides a pressure plate positioning and grasping device based on CNC processing, wherein the pressure plate is adsorbed by an electromagnet, which can assist in improving the downward pressing and fixing effect of the pressure plate, thereby ensuring the processing accuracy of the CNC machine.
[0005] One advantage of the utility model is that it provides a pressure plate positioning and grasping device based on CNC processing, wherein the cooperation of the third positioning pin and the third positioning hole can ensure that the clamp hook is quickly and accurately buckled on the T-shaped fixing block, which can further improve work efficiency.
[0006] In order to achieve at least one of the above advantages of the utility model, the utility model provides a pressure plate positioning and grasping device based on CNC processing, comprising:
[0007] A base, used for installation on a CNC machine, wherein a plurality of first positioning pins capable of being directed and moved up and down are arranged at predetermined positions on the top of the base, and the plurality of first positioning pins surround and form a limiting space for limiting the product;
[0008] A pressing plate, with two T-shaped fixing blocks symmetrically distributed on the top of the pressing plate;
[0009] A quick clamping mechanism, wherein the quick clamping mechanism includes a mounting seat and a clamp hook located in a square movable cavity of the mounting seat and matched with the T-shaped fixing block, the mounting seat is vertically connected with second positioning pins at both ends in the length direction, the base is provided with a second positioning hole matched with the second positioning pin, the clamp hook has a clamping state and a disengaged state, wherein the clamping state is: the lower hook portion of the clamp hook is symmetrically hooked on the head of the T-shaped fixing block, so that a fixed connection relationship is formed between the mounting seat and the pressure plate, wherein the disengaged state is: the lower hook portion of the clamp hook is separated from the head of the T-shaped fixing block, releasing the fixed connection relationship between the mounting seat and the pressure plate.
[0010] According to an embodiment of the utility model, an electromagnet whose demagnetization can be controlled is arranged in the base, the electromagnet is directly opposite to the limiting space and is magnetically matched with the pressure plate.
[0011] According to an embodiment of the utility model, a cylinder module is disposed in the base, the cylinder module corresponds to the first positioning pin, and the output shaft of the cylinder module is coaxially connected to the first positioning pin.
[0012] According to an embodiment of the utility model, handles are symmetrically arranged on the top of the pressing plate, and the two handles and the two T-shaped fixing blocks are distributed in a cross shape.
[0013] According to an embodiment of the utility model, the pressure plate is provided with third positioning pins on both sides of the T-shaped fixing block, and the bottom of the mounting seat is provided with a third positioning hole matched with the third positioning pins.
[0014] According to an embodiment of the utility model, the clamp hook is hinged to the mounting seat through a rotating shaft near the middle, the rotating shaft is located above the lower hook, and a ramp structure is provided at the other end of the clamp hook relative to the lower hook, and the ramp structure gradually tilts outward in a direction away from the lower hook;
[0015] The mounting seat is symmetrically provided with side thrust springs on both sides of the square movable cavity, and the side thrust springs are elastically connected between the clamp hook and the cavity wall of the square movable cavity in a compressed manner, and in the vertical direction, the side thrust springs are located between the rotating shaft and the lower hook portion;
[0016] The mounting seat is also provided with a reset plate that passes through the square movable cavity and is sleeved on the outside of the two clamp hooks. The reset plate and the cavity wall of the square movable cavity are slidably matched. In the vertical direction, the reset plate is located between the rotating shaft and the ramp structure. Two reset handles are abutted on the top of the mounting seat. The reset handles and the reset plate are elastically connected by a reset spring.
[0017] According to an embodiment of the utility model, the reset plate is a whole plate that is simultaneously sleeved on the outer sides of the two clamp hooks, and the two reset handles are respectively opposite to the two clamp hooks.
[0018] These and other purposes, features and advantages of the present invention are fully reflected in the following detailed description. BRIEF DESCRIPTION OF THE DRAWINGS
[0019] Figure 1 A schematic structural diagram of a pressure plate positioning and grasping device based on CNC machining according to a preferred embodiment of the present application is shown.
[0020] Figure 2 A schematic cross-sectional structure diagram of a pressure plate positioning and grasping device based on CNC processing according to a preferred embodiment of the present application is shown.
[0021] Figure 3 The schematic diagram of the structure of the pressure plate in this application is shown.
[0022] Figure 4 A schematic structural diagram of the quick-clamp mechanism in the present application is shown.
[0023] Figure 5 A bottom view structural diagram of the quick clamping mechanism in the present application is shown.
[0024] Figure 6 A cross-sectional structural diagram of the clamp hook position in the present application is shown, wherein two states are shown at the same time. DETAILED DESCRIPTION
[0025] The following description is used to disclose the utility model so that those skilled in the art can implement the utility model. The preferred embodiments described below are only examples, and those skilled in the art can think of other obvious variations. The basic principles of the utility model defined in the following description can be applied to other embodiments, variations, improvements, equivalents, and other technical solutions that do not deviate from the spirit and scope of the utility model.
[0026] Those skilled in the art should understand that, in the disclosure of the specification, the orientation or position relationship indicated by the terms "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc. are based on the orientation or position relationship shown in the drawings, which are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, the above terms should not be understood as limiting the present invention.
[0027] It is to be understood that the term "one" should be understood as "at least one" or "one or more", that is, in one embodiment, the number of an element may be one, while in another embodiment, the number of the element may be multiple, and the term "one" should not be understood as a limitation on the quantity.
[0028] refer to Figures 1 to 6 According to a preferred embodiment of the utility model, a platen positioning and grabbing device based on CNC processing will be described in detail below, wherein the platen positioning and grabbing device based on CNC processing includes a base 10, a platen 20 and a quick clamping mechanism 30, wherein the base 10 is used to be installed on a CNC machine, and at the same time, a plurality of first positioning pins 11 that can be directional and move up and down are arranged at a predetermined position on the top of the base 10, and a plurality of the first positioning pins 11 surround and form a limiting space for limiting the product, wherein for the convenience of installation and control, a cylinder module 12 is arranged in the base 10, and at the same time, the cylinder module 12 corresponds to the first positioning pin 11, and the output shaft of the cylinder module 12 is coaxially connected to the first positioning pin 11, so that the first positioning pin 11 can be driven to rise or fall back and reset by the cylinder module 12, wherein after rising, it plays a role in positioning the product, and after falling back and resetting, it can facilitate the CNC machine to process the maximum shape of the product; the platen 20 is used to press the product, and two T-shaped fixing blocks 21 are symmetrically distributed on the top of the platen 20;
[0029] The quick clamp mechanism 30 includes a mounting seat 31 and a clamp hook 32 located in a square movable cavity 301 of the mounting seat 31 and matched with the T-shaped fixing block 21. At the same time, the mounting seat 31 is vertically connected with a second positioning pin 33 at both ends in the length direction, and the base 10 is provided with a second positioning hole matched with the second positioning pin 33, so that the mounting seat 31 can be accurately positioned, and then the pressure plate 20 can be accurately positioned by the cooperation of the clamp hook 32 and the T-shaped fixing block 21, so that the pressure plate 20 and the product are 1:1 They fit together completely with high positioning accuracy. In addition, the clamp hook 32 has a clamping state and a disengaged state, wherein the clamping state is: the lower hook portion 321 of the clamp hook 32 is symmetrically hooked on the head portion 211 of the T-shaped fixing block 21, so that a fixed connection relationship is formed between the mounting seat 31 and the pressing plate 20, wherein the disengaged state is: the lower hook portion 321 of the clamp hook 32 is detached from the head portion 211 of the T-shaped fixing block 21, releasing the fixed connection relationship between the mounting seat 31 and the pressing plate 20.
[0030] In the actual working process, firstly, the first positioning pin 11 is controlled to rise to form a limiting space, and the product is placed in the limiting space to ensure the accuracy of the product position. When the product is in place, the product can be adsorbed by the vacuum nozzle in the base 10, and then the pressing plate 20 is placed. In order to ensure that the pressing plate 20 accurately presses down to fix the product and avoids the maximum shape processing position of the product, the second positioning pin 33 on the mounting seat 31 is aligned with the second positioning hole on the base 10, and then the mounting seat 31 is pressed down, and at the same time, the clamp hook 32 hooks the head 211 of the T-shaped fixing block 21 to form a fixed connection relationship between the mounting seat 31 and the pressing plate 20, so Even if there is a slight positional offset when the pressing plate 20 is placed on the product, the position of the pressing plate 20 can be corrected based on the matching relationship between the second positioning pin 33 and the second positioning hole, as well as the matching relationship between the clamp hook 32 and the T-shaped fixing block 21, so as to achieve precise positioning of the pressing plate 20 and the product in a 1:1 fit, thereby ensuring the processing accuracy of the product and improving the processing yield rate. At the same time, the manual work efficiency is improved, the overall weight of the fixture is reduced, and the pressing plate 20 can be reused and has strong versatility. Finally, the quick clamping mechanism 30 is removed, the first positioning pin 11 is lowered, and the product is processed by CNC. After the processing is completed, the pressing plate 20 is removed in turn and the product is taken out.
[0031] In one embodiment, the base 10 is provided with an electromagnet 13 which can be controlled to be demagnetized. At the same time, the electromagnet 13 is facing the limit space and magnetically cooperates with the pressure plate 20. In the preparation stage, the electromagnet 13 is first demagnetized, and then the first positioning pin 11 is raised, the product is placed, and then the pressure plate 20 is placed, and then the electromagnet 13 is magnetically attracted to the pressure plate 20. The product can be fixed not only by the gravity of the pressure plate 20 itself, but also by the magnetic attraction force. Further improve the fixing effect of the pressure plate 20 on the product, thereby ensuring the CNC processing quality.
[0032] In one embodiment, in order to facilitate the placement and removal of the pressing plate 20, handles 22 are symmetrically arranged on the top of the pressing plate 20, and the two handles 22 and the two T-shaped fixing blocks 21 are distributed in a cross shape.
[0033] In one embodiment, the pressure plate 20 is provided with third positioning pins 23 on both sides of the T-shaped fixing block 21, and the bottom of the mounting seat 31 is provided with a third positioning hole 302 that cooperates with the third positioning pin 23, so as to provide positioning convenience when the clamp hook 32 cooperates with the T-shaped fixing block 21, ensuring that the clamp hook 32 can be quickly and accurately clamped to the head 211 of the T-shaped fixing block 21.
[0034] In one embodiment, the clamp hook 32 is hinged to the mounting seat 31 through a rotating shaft 322 near the middle, and the rotating shaft 322 is located above the lower hook portion 321. A ramp structure 323 is provided at the other end of the clamp hook 32 relative to the lower hook portion 321, and the ramp structure 323 gradually tilts outward in a direction away from the lower hook portion 321, so that the lower hook portion 321 and the ramp structure 323 can form a lever structure with the rotating shaft 322 as the hinge point.
[0035] The mounting seat 31 is symmetrically provided with side thrust springs 311 on both sides of the square movable cavity 301, and the side thrust springs 311 are elastically connected between the clamp hook 32 and the cavity wall of the square movable cavity 301 in a compressed manner, and in the vertical direction, the side thrust spring 311 is located between the rotating shaft 322 and the lower hook portion 321, so that the side thrust spring 311 can continuously provide a rebound force to the lower part of the clamp hook 32, so that in the clamping state of the clamp hook 32, the lower hook portion 321 can be stably clamped on the head 211 of the T-shaped fixing block 21, thereby ensuring the stability of the connection relationship between the mounting seat 31 and the pressure plate 20;
[0036] The mounting seat 31 is also provided with a reset plate 34 that penetrates the square movable cavity 301 and is sleeved on the outside of the two clamp hooks 32. The reset plate 34 and the cavity wall of the square movable cavity 301 are slidably matched. At the same time, in the vertical direction, the reset plate 34 is located between the rotating shaft 322 and the ramp structure 323, and two reset handles 35 are abutted on the top of the mounting seat 31, wherein the reset handle 35 and the reset plate 34 are elastically connected by a reset spring 36. In this way, When an upward force is applied to the reset handle 35 to overcome the elastic potential energy of the reset spring 36, the reset plate 34 will move upward along the ramp structure 323, and squeeze the upper part of the clamp hook 32 inward through the ramp structure 323. Based on the lever principle, the lower part of the clamp hook 32 reversely squeezes the side push spring 311 and gradually moves outward, and then gradually disengages from the head 211 of the T-shaped fixing block 21, thereby releasing the connection between the clamp hook 32 and the T-shaped fixing block 21 and converting it into a disengaged state. At this time, the quick clamp mechanism 30 can be removed.
[0037] In one embodiment, the reset plate 34 is a whole plate that is simultaneously mounted on the outside of the two clamp hooks 32, and the two reset handles 35 are respectively facing the two clamp hooks 32, thereby ensuring that the reset plate 34 drives the clamp hooks 32 on both sides to open synchronously, which is easy to operate.
[0038] It should be noted that the terms "first, second and third" in the present invention are only used for descriptive purposes and do not indicate any order. They cannot be understood as indicating or implying relative importance. These terms can be interpreted as names.
[0039] It should be understood by those skilled in the art that the embodiments of the present invention described above and shown in the accompanying drawings are only examples and do not limit the present invention. The advantages of the present invention have been fully and effectively realized. The functions and structural principles of the present invention have been demonstrated and explained in the embodiments, and the embodiments of the present invention may be deformed or modified in any way without departing from the principles.
Claims
1. The platen positioning and grabbing device based on CNC processing is characterized by: include: A base, used for installation on a CNC machine, wherein a plurality of first positioning pins capable of being directed and moved up and down are arranged at predetermined positions on the top of the base, and the plurality of first positioning pins surround and form a limiting space for limiting the product; A pressing plate, with two T-shaped fixing blocks symmetrically distributed on the top of the pressing plate; A quick clamping mechanism, wherein the quick clamping mechanism includes a mounting seat and a clamp hook located in a square movable cavity of the mounting seat and matched with the T-shaped fixing block, the mounting seat is vertically connected with second positioning pins at both ends in the length direction, the base is provided with a second positioning hole matched with the second positioning pin, the clamp hook has a clamping state and a disengaged state, wherein the clamping state is: the lower hook portion of the clamp hook is symmetrically hooked on the head of the T-shaped fixing block, so that a fixed connection relationship is formed between the mounting seat and the pressure plate, wherein the disengaged state is: the lower hook portion of the clamp hook is separated from the head of the T-shaped fixing block, releasing the fixed connection relationship between the mounting seat and the pressure plate.
2. The CNC-processed pressure plate positioning and grabbing device according to claim 1, characterized in that: An electromagnet with controllable demagnetization is arranged in the base, the electromagnet faces the limiting space and is magnetically matched with the pressing plate.
3. The CNC-processed pressure plate positioning and grabbing device according to claim 1, characterized in that: A cylinder module is arranged in the base, the cylinder module corresponds to the first positioning pin, and an output shaft of the cylinder module is coaxially connected to the first positioning pin.
4. The CNC-processed pressure plate positioning and grabbing device according to claim 1, characterized in that: Handles are symmetrically arranged on the top of the pressing plate, and the two handles and the two T-shaped fixing blocks are distributed in a cross shape.
5. The CNC-processed pressure plate positioning and grabbing device according to claim 1, characterized in that: The pressure plate is provided with third positioning pins on both sides of the T-shaped fixing block, and the bottom of the mounting seat is provided with a third positioning hole matched with the third positioning pin.
6. The CNC-processed pressure plate positioning and grabbing device according to claim 1, characterized in that: The clamp hook is hinged to the mounting seat through a rotating shaft near the middle, the rotating shaft is located above the lower hook, and a slope structure is provided at the other end of the clamp hook relative to the lower hook, and the slope structure gradually tilts outward in a direction away from the lower hook; The mounting seat is symmetrically provided with side thrust springs on both sides of the square movable cavity, and the side thrust springs are elastically connected between the clamp hook and the cavity wall of the square movable cavity in a compressed manner, and in the vertical direction, the side thrust springs are located between the rotating shaft and the lower hook portion; The mounting seat is also provided with a reset plate that passes through the square movable cavity and is sleeved on the outside of the two clamp hooks. The reset plate and the cavity wall of the square movable cavity are slidably matched. In the vertical direction, the reset plate is located between the rotating shaft and the ramp structure. Two reset handles are abutted on the top of the mounting seat. The reset handles and the reset plate are elastically connected by a reset spring.
7. The CNC-processed pressure plate positioning and grabbing device according to claim 6, characterized in that: The reset plate is a whole plate that is sleeved on the outer sides of the two clamp hooks at the same time, and the two reset handles are respectively opposite to the two clamp hooks.