Pull-down pressing device

Abstract

The utility model discloses a pull-down hold-down device, which relates to the technical field of work fixtures, and comprises a frame, a product seat arranged on the frame, and a pull-down mechanism arranged on the frame and positioned below the product seat, and the product seat is provided with a blind rivet assembly penetrating through the product seat up and down; the pull-down mechanism comprises a pushing driving piece, a pull-down driving piece arranged on the pushing driving piece and a pull-down piece arranged on the pull-down driving piece; the product base is used for bearing a product and limiting the product, the pushing driving piece is used for horizontally pushing the pull-down driving piece and the pull-down piece to the pop-rivet assembly so that the pull-down piece can be matched with the pop-rivet assembly, and the pull-down driving piece is used for driving the pull-down piece to vertically move downwards so that the pull-down piece can pull down the pop-rivet assembly; the blind rivet assembly is used for pressing the product on the product base. The pull-down pressing device is simple and compact in structure, small in occupied space and capable of rapidly pressing a product, and production efficiency is greatly improved.

Description

Technical Field

[0001] The utility model relates to the technical field of tooling fixtures, and particularly relates to a downward pressing device. Background Art

[0002] CNC (Computerized Numerical Control) is the abbreviation of Computer Numerical Control machine tool, which is an automated machine tool controlled by a program.

[0003] At present, when the CNC automated machine tool finishes processing a product and blanking, it is often necessary to use a tooling fixture to press the product. The traditional tooling fixture controls the pressing or loosening of the pressing member by a cylinder controlling a slider mechanism, which not only has a complex structure, occupies a large space, but also has cumbersome actions and low production efficiency. Therefore, it is urgent to develop a new tooling fixture to effectively cooperate with the CNC automated machine tool. Summary of the Utility Model

[0004] In view of the above-mentioned defects existing in the prior art, the utility model provides a downward pressing device, which not only has a simple and compact structure, occupies a small space, but also can quickly press the product, greatly improving the production efficiency.

[0005] In order to solve the above technical problems, the technical solution adopted by the utility model is as follows:

[0006] A downward pressing device includes a frame, a product seat arranged on the frame, and a downward pulling mechanism arranged on the frame and located below the product seat. A pull pin assembly penetrating through the product seat vertically is arranged on the product seat; the downward pulling mechanism includes a pushing driving member, a downward pulling driving member arranged on the pushing driving member, and a downward pulling member arranged on the downward pulling driving member; the product seat is used for carrying the product and limiting the product, the pushing driving member is used for horizontally pushing the downward pulling driving member and the downward pulling member to the pull pin assembly so that the downward pulling member cooperates with the pull pin assembly, the downward pulling driving member is used for driving the downward pulling member to move vertically downward so that the downward pulling member pulls down the pull pin assembly, and the pull pin assembly is used for pressing the product on the product seat.

[0007] Wherein, the pull pin assembly includes a pull handle and a pull pin arranged on the pull handle. The pull handle has a pull head for cooperating with the downward pulling member, and the pull pin has a pressing head for pressing the product.

[0008] Wherein, the downward pulling member includes a downward pulling seat and a pull claw arranged on the downward pulling seat. The downward pulling seat is fixedly arranged on the downward pulling driving member, and the pull claw is used for pulling down the pull head.

[0009] Among them, the slider is a T-shaped head, and the claw has a T-shaped groove adapted to the T-shaped head, and the T-shaped groove penetrates the claw along the pushing direction of the pushing driving member.

[0010] Among them, the product seat includes a supporting plate arranged on the frame and a limiting block arranged on the supporting plate. An installation hole penetrating the limiting block and the supporting plate is arranged on the limiting block, and the pulling handle is slidably arranged in the installation hole.

[0011] Among them, a sliding limiting structure cooperating with the limiting block is arranged on the pulling handle.

[0012] Among them, the sliding limiting structure includes an annular retaining ring protruding from the peripheral side of the pulling handle. A limiting groove adapted to the annular retaining ring is arranged on the limiting block, and the installation hole is located in the limiting groove.

[0013] Among them, the downward pressing device further includes a handling device. The handling device includes a base, a slide rail arranged on the base, and a handling driving member. The frame is arranged on the slider of the slide rail and connected to the handling driving member. The handling driving member is used to drive the frame to perform reciprocating linear motion in the horizontal direction.

[0014] Among them, a limiting seat is further arranged on the base. The slide rail is located between the handling driving member and the limiting seat. A positioning pin is arranged on the limiting seat, and a positioning hole adapted to the positioning pin is arranged on the frame.

[0015] Among them, a buffer is further arranged on the limiting seat for buffering and decelerating the frame.

[0016] Adopting the above technical solution, the beneficial effects of the present utility model are as follows:

[0017] For the downward pressing device provided by the present utility model, since the product seat and the downward pulling mechanism are arranged up and down on the frame, the space of the frame is fully and reasonably utilized. Therefore, its structure is simple and compact, the volume is greatly reduced, and the occupied space is thus reduced. And during the use process, only by using the pushing driving member to horizontally push the downward pulling driving member and the downward pulling member to the rivet assembly so that the downward pulling member cooperates with the rivet assembly, and then by using the downward pulling driving member to drive the downward pulling member to move vertically downward to pull down the rivet assembly, the product on the product seat can be quickly pressed and positioned by the rivet assembly, realizing the automatic pressing and positioning of the product. Therefore, it also has the advantages of simple operation and fast pressing speed, thus greatly improving the production efficiency. Description of the Drawings

[0018] Figure 1 is a schematic structural diagram of the downward pressing device of the present utility model;

[0019] Figure 2 is Figure 1 a schematic structural view of a lower pull member, a rivet assembly and a product seat;

[0020] Figure 3 is Figure 1 an exploded view of the rivet assembly and the product seat in

[0021] In the figure: 1. Frame; 11. Positioning hole; 2. Product seat; 21. Support plate; 22. Limit block; 23. Mounting hole; 24. Limit groove; 3. Rivet assembly; 31. Pull handle; 311. Pull head; 312. Annular retaining ring; 32. Rivet; 321. Pressing head; 322. Pull rod; 4. Pushing drive member; 5. Lower pulling drive member; 6. Lower pull member; 61. Lower pull seat; 62. Pull claw; 7. Base; 8. Slide rail; 9. Handling drive member; 10. Limit seat; 101. Positioning pin; 12. Buffer. Specific embodiments

[0022] In order to make the objectives, technical solutions and advantages of the present utility model clearer and more understandable, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present utility model and are not used to limit the present utility model.

[0023] As Figures 1 to 3 shown, this embodiment provides a lower pull and pressing device, including a frame 1, a product seat 2 provided on the frame 1, and a lower pull mechanism provided on the frame 1 and located below the product seat 2. A rivet assembly 3 penetrating the product seat 2 vertically is provided on the product seat 2; the lower pull mechanism includes a pushing drive member 4, a lower pulling drive member 5 provided on the pushing drive member 4, and a lower pull member 6 provided on the lower pulling drive member 5; the product seat 2 is used to carry a product (not shown in the figure) and limit the product. The pushing drive member 4 is used to horizontally push the lower pulling drive member 5 and the lower pull member 6 to the position of the rivet assembly 3 so that the lower pull member 6 cooperates with the rivet assembly 3. The lower pulling drive member 5 is used to drive the lower pull member 6 to move vertically downward so that the lower pull member 6 pulls down the rivet assembly 3. The rivet assembly 3 is used to press the product on the product seat 2 under the downward pull of the lower pull member 6.

[0024] Since the product seat 2 and the downward pulling mechanism of the downward pressing device are arranged vertically on the frame 1, making full and reasonable use of the space of the frame 1, the structure of the downward pressing device is simple and compact, greatly reducing the volume and thus the occupied space. And during use, only by pushing the driving part 4 to horizontally push the downward driving part 5 and the downward pulling part 6 to the rivet assembly 3 so that the downward pulling part 6 cooperates with the rivet assembly 3, and then driving the downward pulling part 6 to move vertically downward by the downward driving part 5 to pull down the rivet assembly 3 by the downward pulling part 6, the product on the product seat 2 can be quickly pressed by the rivet assembly 3 to realize automatic pressing and positioning of the product. Therefore, it also has the advantages of simple operation and fast pressing speed, thus greatly improving the production efficiency.

[0025] The rivet assembly 3 in this embodiment includes a pull handle 31 and a rivet 32 arranged on the pull handle 31. The pull handle 31 has a pull head 311 for cooperating with the downward pulling part 6, and the rivet 32 has a pressing head 321 for pressing the product. By setting the rivet assembly 3 as a split structure, it is convenient for the processing of the rivet assembly 3. Of course, the rivet assembly 3 can also adopt an integral structure, which is specifically selected according to actual needs, and this embodiment does not limit this.

[0026] Since threaded connection is a widely used detachable fixed connection method with the advantages of simple structure, reliable connection, convenient installation and disassembly, etc., in this embodiment, a pull rod 322 with a threaded structure is arranged on the pressing head 321, and the rivet 32 is threadedly connected to the pull handle 31 through the pull rod 322.

[0027] The downward pulling part 6 in this embodiment includes a downward pulling seat 61 and a pulling claw 62 arranged on the downward pulling seat 61. The downward pulling seat 61 is fixedly arranged on the downward driving part 5, and the pulling claw 62 is used for pulling down the pull head 311. In this embodiment, it is preferably that the downward pulling seat 61 and the pulling claw 62 are integrally arranged. In this way, the connection strength between the downward pulling seat 61 and the pulling claw 62 is improved. Of course, the downward pulling seat 61 and the pulling claw 62 can also adopt a split structure, which is specifically selected according to actual needs, and this embodiment does not limit this.

[0028] The pull head 311 in this embodiment is a T-shaped head, and the pulling claw 62 has a T-shaped groove adapted to the T-shaped head. The T-shaped groove penetrates through the pulling claw 62 along the pushing direction of the pushing driving part 4. By setting the T-shaped head and the T-shaped groove, the quick mating connection between the pull head 311 and the pulling claw 62 is realized, further improving the pressing speed. Of course, the T-shaped head and the T-shaped groove can also be replaced by a dovetail head and a dovetail groove, which is specifically selected according to actual needs, and this embodiment does not limit this.

[0029] In order to improve the pressing effect, multiple sets of the rivet assembly 3 are arranged in this embodiment. Correspondingly, multiple pulling claws 62 are also arranged. In actual application, the number of the rivet assembly 3 and the pulling claws 62 can be set according to actual needs, and this embodiment does not limit this.

[0030] The product seat 2 in this embodiment includes a supporting plate 21 arranged on the frame 1 and a limiting block 22 arranged on the supporting plate 21. An installation hole 23 penetrating through the limiting block 22 and the supporting plate 21 is provided on the limiting block 22, and the pull handle 31 is slidably arranged in the installation hole 23. By setting the supporting plate 21 and the limiting block 22 in a detachable structural form, not only the processing difficulty of the product seat 2 is reduced, but also it is convenient to replace the supporting plate 21 or the limiting block 22 with different structures to meet the usage requirements of different products. The supporting plate 21 in this embodiment is used to support the product, and the limiting block 22 is used to limit the position of the product. In practical applications, the structure of the product seat 2 can be set according to the structure of the product, and this embodiment does not limit this.

[0031] In order to prevent the rivet assembly 3 from falling out of the installation hole 23, and at the same time, in order to facilitate the disassembly and assembly of the rivet assembly 3, a sliding limit structure cooperating with the limiting block 22 is provided on the pull handle 31 in this embodiment.

[0032] Specifically, the sliding limit structure includes an annular retaining ring 312 protruding from the peripheral side of the pull handle 31, a limit groove 24 adapted to the annular retaining ring 312 is provided on the limiting block 22, and the installation hole 23 is located in the limit groove 24.

[0033] Since the double-acting cylinder adopts a standard embedded installation, a lot of space can be saved in terms of installation, and the double-acting cylinder can ensure a high moving accuracy and a fast moving speed at the same time. Therefore, the pushing driving member 4 and the pulling-down driving member 5 in this embodiment are both preferably double-acting cylinders. Of course, other linear motion mechanisms such as hydraulic cylinders or electric cylinders can also be used, and specific selection is made according to actual needs. This embodiment does not limit this.

[0034] The pulling-down pressing device in this embodiment further includes a handling device. The handling device includes a base 7, a slide rail 8 and a handling driving member 9 arranged on the base 7. The frame 1 is arranged on the slider of the slide rail 8 and connected to the handling driving member 9. The handling driving member 9 is used to drive the frame 1 to perform reciprocating linear motion in the horizontal direction. By setting the handling device, the flexibility of the pulling-down pressing device is improved. When the CNC automatic machine finishes processing the product and blanking, it is convenient to timely move the frame 1 to the blanking station. After the product blanking is completed, it is convenient to timely move the frame 1 away from the blanking station, avoiding affecting the normal operation of the CNC automatic machine due to occupying the space of the CNC automatic machine, and solving the problems of large occupied space and limited usage space of traditional tooling fixtures.

[0035] To protect the safety of the downward pressing device, in this embodiment, a limit seat 10 is further provided on the base 7. The slide rail 8 is located between the handling driving member 9 and the limit seat 10. A positioning pin 101 is provided on the limit seat 10, and a positioning hole 11 adapted to the positioning pin 101 is provided on the frame 1. The positioning accuracy of the frame 1 is improved through the mutual cooperation of the positioning pin 101 and the positioning hole 11, ensuring that the product can be accurately placed on the product seat 2.

[0036] To prevent the frame 1 from hitting the limit seat 10 directly and avoid damage to both due to collision, in this embodiment, a buffer 12 for buffering and decelerating the frame 1 is further provided on the limit seat 10.

[0037] In this embodiment, the positioning hole 11 is provided on the frame 1. Of course, the positioning hole 11 can also be provided on other components, such as the product seat 2, etc., and is specifically set according to actual requirements. This embodiment does not limit this.

[0038] In this embodiment, the handling driving member 9 adopts a guide rod cylinder, and its movement direction is perpendicular to the movement direction of the pushing driving member 4. Of course, they can also be in the same direction, and are specifically set according to actual requirements. This embodiment does not limit this.

[0039] When the downward pressing device in this embodiment is used in cooperation with a CNC automatic machine tool, in the initial state, the handling driving member 9 and the pushing driving member 4 are in the retracted state, and the downward driving member 5 is in the ejected state.

[0040] After the product is processed by the CNC automatic machine tool and is ready for blanking, the handling driving member 9 ejects to drive the frame 1 to move to the limit seat 10 for positioning. The product to be blanked is supported on the positioned product seat 2. The operator puts the rivet assembly 3 into the installation hole 23. After putting it in, the pressing head 321 of the rivet 32 is placed on the product. Then, the pushing driving member 4 ejects to horizontally push the downward driving member 5 and the downward member 6 to the rivet assembly 3 to complete the cooperation between the downward member 6 and the rivet assembly 3 (i.e., the claw 62 is sleeved on the pull head 311). Subsequently, the downward driving member 5 retracts to drive the downward member 6 to move vertically downward to pull down the pull head 311 by the claw 62, and the pressing head 321 presses the product on the product seat 2 under the downward pulling action of the downward member 6.

[0041] After the product is blanked, the downward driving member 5 ejects to release the pull head 311 by the claw 62. The pushing driving member 4 retracts to drive the downward driving member 5 and the downward member 6 away from the rivet assembly 3. The operator takes out the rivet assembly 3 from the installation hole 23 and takes down the blanked product. The handling driving member 9 retracts to drive the frame 1 back to the initial position. At this time, a product blanking process is completed.

[0042] The above is only one embodiment of the downward pressing device of the present utility model, and there are more embodiments which will not be elaborated here. The present utility model is not limited to the above specific implementation manners. All kinds of transformations made by those of ordinary skill in the art starting from the above concepts without creative efforts fall within the protection scope of the present utility model.

Claims

1. A pull-down clamping device, characterized in that: The machine comprises a frame, a product seat arranged on the frame, and a pull-down mechanism arranged on the frame and located below the product seat. The product seat is provided with a pull nail assembly which passes through the product seat from top to bottom; the pull-down mechanism includes a push-driving member, a pull-down driving member provided on the push-driving member, and a pull-down member provided on the pull-down driving member; The product seat is used to carry the product and limit the position of the product, the push-driving member is used to push the pull-down driving member and the pull-down member horizontally to the rivet assembly so that the pull-down member cooperates with the rivet assembly, the pull-down driving member is used to drive the pull-down member to move vertically downward so that the pull-down member pulls down the rivet assembly, and the rivet assembly is used to press the product on the product seat.

2. The pull-down pressing device according to claim 1, characterized in that: The rivet assembly comprises a pull handle and a rivet arranged on the pull handle, wherein the pull handle has a pull head matched with the pull-down member, and the rivet has a pressing head for pressing the product.

3. The pull-down pressing device according to claim 2, characterized in that: The pull-down member comprises a pull-down seat and a pulling claw arranged on the pull-down seat. The pull-down seat is fixedly arranged on the pull-down driving member, and the pulling claw is used to pull down the slider.

4. The pull-down pressing device according to claim 3, characterized in that: The pulling head is a T-shaped head, and the pulling claw has a T-shaped slot matched with the T-shaped head, and the T-shaped slot penetrates the pulling claw along the pushing direction of the pushing driving member.

5. The pull-down pressing device according to claim 2, characterized in that: The product seat includes a supporting plate arranged on the frame and a limiting block arranged on the supporting plate, the limiting block is provided with a mounting hole penetrating the limiting block and the supporting plate, and the handle is slidably arranged in the mounting hole.

6. The pull-down pressing device according to claim 5, characterized in that: The pull handle is provided with a sliding limiting structure matched with the limiting block.

7. The pull-down pressing device according to claim 6, characterized in that: The sliding limiting structure comprises an annular retaining ring protrudingly arranged on the peripheral side of the pull handle, the limiting block is provided with a limiting groove matched with the annular retaining ring, and the mounting hole is located in the limiting groove.

8. The pull-down pressing device according to claim 1, characterized in that: The pull-down pressing device also includes a transport device, which includes a base, a slide rail and a transport drive member arranged on the base, the frame is arranged on a slider of the slide rail and connected to the transport drive member, and the transport drive member is used to drive the frame to reciprocate linearly in a horizontal direction.

9. The pull-down pressing device according to claim 8, characterized in that: A limit seat is also provided on the base, the slide rail is located between the transport drive member and the limit seat, a positioning pin is provided on the limit seat, and a positioning hole matched with the positioning pin is provided on the frame.

10. The pull-down pressing device according to claim 9, characterized in that: The limit seat is also provided with a buffer for buffering and decelerating the frame.

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