Part feeding self-locking clamp

Abstract

The part feeding self-locking clamp comprises a shell, a guide groove is formed in the upper end of the shell, a rectangular groove is formed in the inner bottom of the guide groove, and a columnar cavity is formed in the shell; the clamping mechanism comprises two connecting plates which are symmetrically and fixedly connected to the upper end of the shell, piston cylinders are fixedly connected to the opposite sides of the two connecting plates, second piston blocks which can slide left and right are arranged in the two piston cylinders, and clamping plates are fixedly connected to the opposite sides of the two second piston blocks; the gravity triggering mechanism is located in the rectangular groove; and the magnetic driving mechanism is positioned in the columnar cavity. In the using process of the clamp, the clamping efficiency can be effectively improved, the labor amount of workers is reduced, and operation of the workers is facilitated.

Description

Technical Field

[0001] The utility model relates to the technical field of self-locking clamps, in particular to a self-locking clamp for parts feeding. Background Art

[0002] A fixture is a device used to fix the object to be processed during the mechanical manufacturing process so that the object has the correct position, and then the fixed object is subjected to construction or inspection. When the workpiece is being processed, it needs to be clamped and limited;

[0003] Traditional clamping and limiting generally requires the staff to place the workpiece at the limiting position first, and then limit the position by driving the clamping part. However, the traditional clamp, such as the clamp disclosed in the utility model patent with publication number CN218504328U, still has the following problems during use;

[0004] During the processing, especially the continuous processing, the workers are required to reciprocate the screw part, which not only increases the workload of the workers, but also affects the actual overall processing efficiency. Therefore, how to solve this problem is what we need to consider. Utility Model Content

[0005] The purpose of the utility model is to solve the shortcomings of the prior art and to propose a self-locking clamp for parts feeding. During use, the clamp can effectively improve the clamping efficiency, reduce the workload of the staff, and facilitate the operation of the staff.

[0006] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0007] A self-locking clamp for parts feeding, comprising a shell, a guide groove is formed at the upper end of the shell, a rectangular groove is formed at the inner bottom of the guide groove, and a columnar cavity is arranged in the shell; a clamping mechanism, the clamping mechanism comprises two connecting plates symmetrically fixedly connected to the upper end of the shell, the opposite sides of the two connecting plates are fixedly connected to piston cylinders, the two piston cylinders are provided with second piston blocks that can slide left and right, and the opposite sides of the two second piston blocks are fixedly connected to clamping plates; a gravity trigger mechanism, the gravity trigger mechanism is located in the rectangular groove; a magnetic drive mechanism, the magnetic drive mechanism is located in the columnar cavity.

[0008] Preferably, the gravity trigger mechanism includes a gravity trigger plate slidably connected in the rectangular groove, the lower end of the gravity trigger plate is fixedly connected to a conductive plate, the lower end of the conductive plate is elastically connected to the inner bottom of the rectangular groove through a second spring, and power connection blocks are embedded on the inner walls on both sides of the middle space of the rectangular groove.

[0009] Preferably, rubber pads are provided on opposite sides of the two clamping plates.

[0010] Preferably, the conductive plate is a copper plate.

[0011] Preferably, the magnetic drive mechanism includes a first piston block slidably connected in the columnar cavity, the upper end of the first piston block is elastically connected to the inner top of the columnar cavity through a first spring, an electromagnet is installed on the inner bottom of the columnar cavity, the first piston block is magnetic, and the electromagnet repels the adjacent surface of the first piston block with the same polarity when energized.

[0012] Preferably, the top space of the columnar cavity is connected to the two piston cylinders through two first connecting tubes, and the top space of the columnar cavity is connected to the two piston cylinders through two second connecting tubes, the diameter of each of the first connecting tubes is one third of the diameter of the second connecting tube, and a one-way valve is installed in each of the first connecting tubes and the second connecting tubes.

[0013] Preferably, the bottom space of the columnar cavity is connected to the outside through a connecting pipe, and a power supply component is installed at the upper end of the shell, and the power supply component and two power connection blocks jointly control the electromagnet.

[0014] Compared with the prior art, the utility model has the following beneficial effects:

[0015] A gravity trigger mechanism and a magnetic drive mechanism are provided, and automatic clamping can be realized after the parts are placed. Compared with the existing technology, it greatly facilitates the operation of the staff and improves the clamping efficiency. In addition, due to the setting of the first connecting pipe and the second connecting pipe as well as the internal one-way valve and the size of the pipe diameter, the clamping plate and the parts are prevented from having excessive collisions. Combined with the use of rubber pads, it can effectively avoid damage to the workpiece during clamping. At the same time, the subsequent return speed is also faster to avoid affecting the overall efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a structural schematic diagram of a self-locking fixture for parts feeding proposed by the utility model;

[0017] Figure 2 for Figure 1 A partial cross-sectional schematic diagram of

[0018] Figure 3 for Figure 2 Enlarged view of point A.

[0019] In the figure: 1 housing, 2 guide groove, 3 gravity trigger plate, 4 connecting plate, 5 piston cylinder, 6 clamping plate, 7 piston rod, 8 power supply assembly, 9 columnar cavity, 10 electromagnet, 11 first piston block, 12 first spring, 13 first connecting pipe, 14 second connecting pipe, 15 connecting pipe, 16 second piston block, 17 rectangular groove, 18 second spring, 19 power connection block, 20 conductive plate. DETAILED DESCRIPTION

[0020] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0021] Reference Figure 1-Figure 3 A self-locking fixture for parts feeding includes a housing 1, a guide groove 2 is provided at the upper end of the housing 1, a rectangular groove 17 is provided at the inner bottom of the guide groove 2, and a columnar cavity 9 is provided in the housing 1;

[0022] The clamping mechanism includes two connecting plates 4 symmetrically fixedly connected to the upper end of the housing 1, piston cylinders 5 are fixedly connected to the opposite sides of the two connecting plates 4, second piston blocks 16 that can slide left and right are arranged in the two piston cylinders 5, clamping plates 6 are fixedly connected to the opposite sides of the two second piston blocks 16, and rubber pads are arranged on the opposite sides of the two clamping plates 6;

[0023] The gravity trigger mechanism is also included. The gravity trigger mechanism is located in the rectangular groove 17. The gravity trigger mechanism includes a gravity trigger plate 3 slidably connected in the rectangular groove 17. The lower end of the gravity trigger plate 3 is fixedly connected with a conductive plate 20. The conductive plate 20 is a copper plate. The lower end of the conductive plate 20 is elastically connected to the inner bottom of the rectangular groove 17 through a second spring 18. The inner walls on both sides of the middle space of the rectangular groove 17 are embedded with power connection blocks 19.

[0024] Wherein, it also includes a magnetic drive mechanism, which is located in the columnar cavity 9. The magnetic drive mechanism includes a first piston block 11 slidably connected in the columnar cavity 9. The upper end of the first piston block 11 is elastically connected to the inner top of the columnar cavity 9 through a first spring 12. The first spring 12 is a spring with a large stiffness coefficient. An electromagnet 10 is installed at the inner bottom of the columnar cavity 9. The repulsive force generated by the electromagnet 10 when it is energized is large. The first piston block 11 is magnetic. After the electromagnet 10 is energized, it repels the adjacent surface of the first piston block 11 with the same sex. The top space of the columnar cavity 9 is connected to the two piston cylinders 5 through two first connecting pipes 13 respectively, and the top space of the columnar cavity 9 is connected to the two piston cylinders 5 through two second connecting pipes 14 respectively. The diameter of each first connecting pipe 13 is one-third of the diameter of the second connecting pipe 14.

[0025] Among them, a one-way valve is installed in each of the first connecting tube 13 and the second connecting tube 14. The one-way flow direction of the first connecting tube 13 is that the top space of the columnar cavity 9 unidirectionally enters the corresponding piston cylinder 5. The one-way valve flow direction in the second connecting tube 14 is that the piston cylinder 5 unidirectionally enters the columnar cavity 9. The bottom space of the columnar cavity 9 is connected with the outside through the connecting tube 15. The top space of the columnar cavity 9, multiple first connecting tubes 13, the second connecting tube 14 and the opposite side spaces of the two piston cylinders 5 are all filled with oil. A power supply assembly 8 is installed at the upper end of the shell 1. The power supply assembly 8 and the two power connection blocks 19 jointly control the electromagnet 10. The power supply assembly 8 is composed of a battery and a control switch. One end of the power supply assembly 8 is electrically connected to the electromagnet 10 and the power connection block 19 on the left through a wire in sequence, and the other end is electrically connected to the power connection block 19 on the right.

[0026] In the utility model, when in use, the control switch of the power supply assembly 8 in the initial state is already in the power-on state. At this time, the part to be processed is placed on the guide groove 2 for positioning and guiding. Under the action of the gravity of the part, the gravity trigger plate 3 will move down. After moving down to the limit position, the conductive plate 20 contacts the two power connection blocks 19. At this time, the electromagnet 10 is energized and receives the repulsive force. The first piston block 11 moves up and injects the oil in the top space of the columnar cavity 9 into the opposite side space of the two piston cylinders 5. The oil is used to push the two second piston blocks 16 to move relative to each other, and finally the two clamping plates 6 move relative to each other to achieve automatic clamping limit. When the limit needs to be released later, the control switch of the power supply assembly 8 is turned off, the electromagnet 10 is powered off, and under the elastic action of the first spring 12, the oil in the two piston cylinders 5 is pumped into the columnar cavity 9 again to release the limit. Compared with the prior art, it is further convenient for the staff to operate. After removing the parts, the control switch of the power supply assembly 8 is turned on again to facilitate subsequent operations.

[0027] It should be noted that due to the setting of the first connecting tube 13 and the second connecting tube 14 as well as the internal one-way valve and the size of the tube diameter, the speed of injecting oil into the piston cylinder 5 is slow, and the speed of extracting oil from the piston cylinder 5 is fast. This can enable the clamping plate 6 to perform clamping work at a slower speed, thereby avoiding excessive collision between the clamping plate 6 and the parts. The use of rubber pads can effectively avoid damage to the workpiece during clamping.

[0028] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A self-locking fixture for parts feeding, comprising a housing (1), characterized in that: The upper end of the housing (1) is provided with a guide groove (2), the inner bottom of the guide groove (2) is provided with a rectangular groove (17), and a columnar cavity (9) is provided inside the housing (1); A clamping mechanism, the clamping mechanism comprising two connecting plates (4) symmetrically fixedly connected to the upper end of the housing (1), the two connecting plates (4) being fixedly connected to piston cylinders (5) on opposite sides, the two piston cylinders (5) being provided with second piston blocks (16) capable of sliding leftward and rightward, and the two second piston blocks (16) being fixedly connected to clamping plates (6) on opposite sides; A gravity trigger mechanism, wherein the gravity trigger mechanism is located in the rectangular groove (17); A magnetic drive mechanism is located in the columnar cavity (9).

2. A self-locking fixture for parts feeding according to claim 1, characterized in that: The gravity trigger mechanism comprises a gravity trigger plate (3) slidably connected in a rectangular groove (17); a conductive plate (20) is fixedly connected to the lower end of the gravity trigger plate (3); the lower end of the conductive plate (20) is elastically connected to the inner bottom of the rectangular groove (17) via a second spring (18); and power connection blocks (19) are embedded on the inner walls on both sides of the middle space of the rectangular groove (17).

3. A self-locking fixture for parts feeding according to claim 1, characterized in that: The opposite sides of the two clamping plates (6) are both provided with rubber pads.

4. A self-locking fixture for parts feeding according to claim 2, characterized in that: The conductive plate (20) is a copper plate.

5. A self-locking fixture for parts feeding according to claim 2, characterized in that: The magnetic drive mechanism comprises a first piston block (11) slidably connected in the columnar cavity (9); the upper end of the first piston block (11) is elastically connected to the inner top of the columnar cavity (9) via a first spring (12); an electromagnet (10) is installed at the inner bottom of the columnar cavity (9); the first piston block (11) is magnetic; when the electromagnet (10) is energized, it repels the adjacent surface of the first piston block (11) in the same manner.

6. A self-locking fixture for parts feeding according to claim 5, characterized in that: The top space of the columnar cavity (9) is communicated with the two piston cylinders (5) through two first connecting tubes (13), and the top space of the columnar cavity (9) is communicated with the two piston cylinders (5) through two second connecting tubes (14). The diameter of each of the first connecting tubes (13) is one third of the diameter of the second connecting tube (14), and a one-way valve is installed in each of the first connecting tubes (13) and the second connecting tubes (14).

7. A self-locking fixture for parts feeding according to claim 5, characterized in that: The bottom space of the columnar cavity (9) is connected to the outside through a connecting pipe (15). A power supply assembly (8) is installed at the upper end of the shell (1). The power supply assembly (8) and two power connection blocks (19) jointly control the electromagnet (10).

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