CNC engraving fixture for plastic products

Abstract

The utility model discloses a plastic product CNC engraving quick changeover anchor clamps, including the carrier plate, the lower portion of carrier plate is provided with the backup pad, the upper surface fixed mounting of backup pad has drive motor, the output fixed mounting of drive motor has the drive shaft, the outer surface fixed connection of drive shaft has the rotary plate, the bottom surface all through the hinge of rotary plate has transmission board, the upper surface all through the hinge of two transmission boards has the sliding plate, two the side surface all fixedly connected with sliding block of sliding plate mutually away, the upper surface all fixedly connected with the lower pressure subassembly of two sliding blocks. The utility model discloses through drive motor drive drive shaft, rotary plate and transmission board linkage, can make sliding block drive side location clamping plate realizes the lateral distance self -adaptation adjustment, cooperation lower pressure subassembly in longitudinal clamping, need not to replace anchor clamps main part structure just can adapt to different plastic product, improves the positioning speed to plastic product.

Description

Technical Field

[0001] This application relates to the field of plastic product technology, and in particular to a CNC precision engraving quick change fixture for plastic products. Background Technology

[0002] Plastic products are various products made from high molecular polymers through processes such as injection molding, extrusion, and blow molding. They are widely used in electronics, home appliances, automobiles, medical fields, and other industries. Their characteristics include lightweight, high toughness, and high molding precision requirements. However, their physical properties vary, some products require a smooth surface, and their complex structures often include thin walls, grooves, and curved surfaces, which presents fundamental challenges for clamping and securing them during subsequent processing.

[0003] CNC precision carving of plastic products utilizes computer numerical control technology to perform fine machining such as milling, carving, and drilling on plastic products using high-precision carving tools. However, during the processing of plastic products, fixtures are required for positioning and clamping. Traditional fixtures have poor versatility, requiring customized fixtures for different plastic products. Furthermore, the operation of positioning and clamping plastic products is cumbersome, reducing the positioning speed and consequently affecting the efficiency of subsequent CNC precision carving. Therefore, to solve the above problems, we provide a quick-change fixture for CNC precision carving of plastic products. Utility Model Content

[0004] The purpose of this invention is to provide a quick change-up fixture for CNC precision carving of plastic products, so as to solve the problems mentioned in the background art.

[0005] The embodiments of this application adopt the following technical solutions:

[0006] A CNC precision carving quick-change fixture for plastic products includes a carrier plate, a support plate below the carrier plate, a drive motor fixedly mounted on the upper surface of the support plate, a drive shaft fixedly mounted on the output end of the drive motor, a rotating plate fixedly connected to the outer surface of the drive shaft, transmission plates hinged to the bottom surfaces of the rotating plates via pins, sliding plates hinged to the upper surfaces of the two transmission plates via pins, sliding blocks fixedly connected to the opposite sides of the two sliding plates, pressing components fixedly connected to the upper surfaces of the two sliding blocks, side positioning clamps fixedly connected to both sides of the two pressing components, and silicone protective pads fixedly connected to the adjacent sides of the two sets of side positioning clamps.

[0007] Preferably, both of the pressing components include a support cover, an electric push rod is fixedly installed on the upper surface of both support covers, a sliding pressure plate is fixedly installed on the telescopic end of both electric push rods, and a fixed pressure plate is fixedly connected to one side of both sliding pressure plates.

[0008] Preferably, a bearing ring is fixedly embedded in the bottom surface of the carrier plate, and the top end of the drive shaft is fixedly connected to the inner ring of the bearing ring.

[0009] Preferably, the upper surface of the carrier plate has two transmission holes, and the inner walls of the two transmission holes are slidably connected to the outer surfaces of the two sliding blocks, respectively.

[0010] Preferably, the bottom surface of the carrier plate is fixedly connected to two sets of support bases, and the side of each set of support bases that is close to each other is fixedly connected to the outer surface of the support plate.

[0011] Preferably, the upper surface of the carrier plate is provided with two sets of limiting grooves, and the inner walls of the two sets of limiting grooves are slidably connected with limiting blocks. The upper surfaces of the two limiting blocks are respectively fixedly connected to the bottom surfaces of the two sets of side positioning clamps.

[0012] The above-described technical solutions adopted in the embodiments of this application can achieve the following beneficial effects:

[0013] I. This CNC precision carving quick-change fixture for plastic products uses a drive motor to drive the drive shaft, rotating plate, and transmission plate in a coordinated manner. This allows the sliding block to drive the side positioning clamping plate to achieve adaptive lateral distance adjustment. Combined with the fixed pressure plate driven by the electric push rod in the pressing assembly, it can clamp vertically without changing the main structure of the fixture, thus adapting to plastic products of different sizes and shapes. This improves the positioning speed of plastic products and is suitable for processing various types of small-batch plastic products, reducing the design, manufacturing, and storage costs of special fixtures.

[0014] Second, the CNC precision carving quick change fixture for plastic products, through the setting of drive motor and electric push rod, can automate its lateral positioning and longitudinal clamping, shortening the changeover time. At the same time, the silicone protective pad of the side positioning clamp can prevent rigid contact from causing pressure damage or scratches to the surface of the plastic product. Attached Figure Description

[0015] The accompanying drawings, which are included to provide a further understanding of this application and form part of this application, illustrate exemplary embodiments of this application and are used to explain this application, but do not constitute an undue limitation of this application. In the drawings:

[0016] Figure 1 The present invention is a three-dimensional structural diagram of the CNC precision carving quick change fixture for plastic products, viewed from the front.

[0017] Figure 2 The following is a three-dimensional structural diagram of the CNC precision carving quick change fixture for plastic products, viewed from below.

[0018] Figure 3 See: A front sectional view of the CNC precision carving quick change fixture for plastic products of this utility model;

[0019] Figure 4 The diagram shows a three-dimensional view of the side positioning clamp in the CNC precision carving quick change fixture for plastic products according to this utility model.

[0020] In the diagram: 1. Carrier plate; 2. Support plate; 3. Support base; 4. Drive shaft; 5. Rotating plate; 6. Transmission plate; 7. Sliding plate; 8. Sliding block; 9. Pressing assembly; 91. Support cover; 92. Electric push rod; 93. Sliding pressure plate; 94. Fixed pressure plate; 10. Transmission hole; 11. Bearing ring; 12. Drive motor; 13. Side positioning clamp; 14. Silicone protective pad; 15. Limiting block; 16. Limiting groove. Detailed Implementation

[0021] To make the objectives, technical solutions, and advantages of this application clearer, the technical solutions of this application will be clearly and completely described below in conjunction with specific embodiments and corresponding drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of them. Based on the embodiments in this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0022] The technical solutions provided by the various embodiments of this application are described in detail below with reference to the accompanying drawings.

[0023] Please see Figure 1-4 This utility model provides a technical solution for a CNC precision carving quick change-up fixture for plastic products:

[0024] A CNC precision carving quick-change fixture for plastic products includes a carrier plate 1, a support plate 2 below the carrier plate 1, and a drive motor 12 fixedly mounted on the upper surface of the support plate 2. The drive motor 12 has a built-in braking function and is an electromagnetic brake drive motor 12. When the motor stops running, the electromagnetic brake is energized to generate a magnetic field, which mechanically locks the drive shaft 4 through the friction between the brake pads and the brake wheel. The output end of the drive motor 12 is fixedly mounted on the drive shaft 4. A rotating plate 5 is fixedly connected to the outer surface of the drive shaft 4. The bottom surface of each rotating plate 5 is hinged to a transmission plate 6 by a pin. The upper surfaces of each of the two transmission plates 6 are hinged to a sliding plate 7 by a pin. Sliding blocks 8 are fixedly connected to the opposite sides of each sliding plate 7. The upper surface of block 8 is fixedly connected to a pressing component 9. The two sides of the two pressing components 9 are fixedly connected to side positioning clamps 13. The sides of the two sets of side positioning clamps 13 that are close to each other are fixedly connected to silicone protective pads 14. Specifically, the drive motor 12 drives the drive shaft 4 to rotate through the output end. The drive shaft 4 synchronously drives the rotating plate 5 fixed on the outer surface to rotate. The rotating plate 5 pulls or pushes the hinged transmission plate 6 through the pin shaft, causing the transmission plate 6 to change angle. This change causes the sliding plate 7 that is hinged to it to move closer to each other. The sliding plate 7 further drives the sliding block 8 fixed on the side to move, and finally makes the side positioning clamps 13 on the sliding block 8 close to the plastic product. With the help of the silicone protective pads 14, lateral flexible positioning is achieved to avoid product damage.

[0025] In this embodiment, both pressing components 9 include support covers 91. Electric push rods 92 are fixedly mounted on the upper surfaces of both support covers 91. Sliding pressure plates 93 are fixedly mounted on the telescopic ends of both electric push rods 92. Fixed pressure plates 94 are fixedly connected to one side of each sliding pressure plate 93. Two sets of support bases 3 are fixedly connected to the bottom surface of the carrier plate 1. The sides of the two sets of support bases 3 that are close to each other are fixedly connected to the outer surface of the support plate 2. Specifically, after the electric push rods 92 are activated, they push the sliding pressure plates 93 downwards through their telescopic ends. The sliding pressure plates 93 drive the fixed pressure plates 94 fixed on one side downwards synchronously until the fixed pressure plates 94 adhere to the upper surface of the plastic product, completing the longitudinal clamping. Simultaneously, the support bases 3 on the bottom surface of the carrier plate 1 stably connect the carrier plate 1 and the support plate 2, providing structural support for the entire fixture and ensuring that components such as the drive motor 12 and pressing components 9 remain stable during operation, avoiding the impact of vibration on positioning accuracy.

[0026] In this embodiment, a bearing ring 11 is fixedly embedded in the bottom surface of the carrier plate 1, and the top end of the drive shaft 4 is fixedly connected to the inner ring of the bearing ring 11. Two transmission holes 10 are opened on the upper surface of the carrier plate 1, and the inner walls of the two transmission holes 10 are slidably connected to the outer surfaces of the two sliding blocks 8 respectively. Two sets of limiting grooves 16 are opened on the upper surface of the carrier plate 1, and the inner walls of the two sets of limiting grooves 16 are slidably connected to limiting blocks 15. The upper surfaces of the two limiting blocks 15 are fixedly connected to the bottom surfaces of the two sets of side positioning clamps 13 respectively. Specifically, the bearing ring 11 can guide and stabilize the rotation of the drive shaft 4, reduce the shaking when the drive shaft 4 rotates, and ensure the accuracy of the movement of components such as the rotating plate 5 and the transmission plate 6. The transmission holes 10 on the carrier plate 1 provide sliding guidance for the sliding blocks 8, restricting the sliding blocks 8 to move only along the direction of the transmission holes 10. The limiting grooves 16 cooperate with the limiting blocks 15 on the bottom surface of the side positioning clamps 13 to constrain the movement direction of the side positioning clamps 13.

[0027] Working principle: When the fixture is started to position the plastic product, the plastic product to be processed is first placed on the upper surface of the carrier plate 1. Then, the drive motor 12 is started. The output end of the drive motor 12 drives the drive shaft 4 to rotate. The drive shaft 4 synchronously drives the rotating plate 5 fixed on the surface to rotate. The two transmission plates 6 on the bottom surface of the rotating plate 5 are hinged by the pin. As the rotating plate 5 rotates, the angle changes, which in turn pushes the sliding plates 7 that are hinged to each other to move closer to each other. The sliding plates 7 drive the sliding blocks 8 fixed on the side to slide synchronously. The pressing component 9 on the sliding block 8 and the side positioning clamp 13 move closer to the plastic product until the silicone protective pad 14 on the side positioning clamp 13 is in contact with the side of the plastic product, thus completing the lateral positioning.

[0028] After the lateral positioning is completed, the electric push rod 92 in the pressing assembly 9 is activated. The telescopic end of the electric push rod 92 pushes the sliding pressure plate 93 to move downward. The sliding pressure plate 93 drives the fixed pressure plate 94 fixed on one side to move downward synchronously until the fixed pressure plate 94 is in contact with the upper surface of the plastic product, thus achieving longitudinal clamping. The entire process does not require manual disassembly or adjustment of traditional special fixtures. Through the automatic control of the drive motor 12 and the electric push rod 92, the positioning and clamping are completed quickly, greatly shortening the operation time.

[0029] It should also be noted that, in terms of circuit structure, the drive and control circuits of this utility model are common and mature technologies. Those skilled in the art can select appropriate circuit components to build the circuit according to the power requirements and control requirements of the equipment. For the power supply components, common general power supply equipment on the market and electrical components of this application can be used. These are all common electrical equipment in the prior art. In addition, it needs to be connected to an external control system. The control circuit can be implemented by those skilled in the art through simple programming. This application will not elaborate further.

[0030] The above description is merely an embodiment of this application and is not intended to limit this application. Various modifications and variations can be made to this application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principle of this application should be included within the scope of the claims. It is obvious to those skilled in the art that this utility model is not limited to the details of the above exemplary embodiments, and that it can be implemented in other specific forms without departing from the spirit or basic characteristics of this utility model. Therefore, the embodiments should be considered exemplary and non-limiting in all respects. The scope of this utility model is defined by the appended claims rather than the foregoing description, and thus all variations falling within the meaning and scope of equivalent elements of the claims are intended to be included within this utility model. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A CNC precision carving quick-change fixture for plastic products, comprising a carrier plate (1), characterized in that: A support plate (2) is provided below the carrier plate (1). A drive motor (12) is fixedly installed on the upper surface of the support plate (2). A drive shaft (4) is fixedly installed at the output end of the drive motor (12). A rotating plate (5) is fixedly connected to the outer surface of the drive shaft (4). A transmission plate (6) is hinged to the bottom surface of the rotating plate (5) by a pin. A sliding plate (7) is hinged to the upper surface of the two transmission plates (6) by a pin. A sliding block (8) is fixedly connected to the side of the two sliding plates (7) that are far apart from each other. A pressing component (9) is fixedly connected to the upper surface of the two sliding blocks (8). A side positioning clamp (13) is fixedly connected to both sides of the two pressing components (9). A silicone protective pad (14) is fixedly connected to the side of the two sets of side positioning clamps (13) that are close to each other.

2. The CNC precision carving quick-change fixture for plastic products according to claim 1, characterized in that: Both of the pressing components (9) include a support cover (91), and an electric push rod (92) is fixedly installed on the upper surface of both support covers (91). A sliding pressure plate (93) is fixedly installed on the telescopic end of both electric push rods (92), and a fixed pressure plate (94) is fixedly connected to one side of both sliding pressure plates (93).

3. The CNC precision carving quick-change fixture for plastic products according to claim 1, characterized in that: The bottom surface of the carrier plate (1) is fixedly inlaid with a bearing ring (11), and the top end of the drive shaft (4) is fixedly connected to the inner ring of the bearing ring (11).

4. The CNC precision carving quick-change fixture for plastic products according to claim 1, characterized in that: The upper surface of the carrier plate (1) has two transmission holes (10), and the inner walls of the two transmission holes (10) are slidably connected to the outer surfaces of the two sliding blocks (8).

5. The CNC precision carving quick-change fixture for plastic products according to claim 1, characterized in that: The bottom surface of the carrier plate (1) is fixedly connected to two sets of support bases (3), and the two sets of support bases (3) are fixedly connected to the outer surface of the support plate (2) on the side that is close to each other.

6. The CNC precision carving quick-change fixture for plastic products according to claim 1, characterized in that: The upper surface of the carrier plate (1) is provided with two sets of limiting grooves (16), and the inner walls of the two sets of limiting grooves (16) are slidably connected with limiting blocks (15). The upper surfaces of the two limiting blocks (15) are respectively fixedly connected to the bottom surfaces of the two sets of side positioning clamps (13).

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