Locating and clamping device of cold header

Abstract

The utility model discloses a positioning clamp for a cold header, belongs to the technical field of positioning clamps for cold headers, and solves the problems that the conventional positioning clamp can bear a single workpiece (such as a nut) to be processed, but the workpiece to be processed is only placed on the conventional positioning clamp and cannot be positioned, and the workpiece to be processed cannot be positioned under the vibration influence of a vibration disc in a feeding mechanism. And the problem that the self-positioning clamp possibly falls off is solved. Comprising a bottom plate, the top surface of one end of the bottom plate is provided with a groove which is sunken downwards, the top surface of the bottom plate is provided with a moving groove which is communicated with the groove and is perpendicular to the groove, the bottom plate is fixedly connected with limiting arc pieces which are located in the groove and located on the two sides of the moving groove, and the limiting arc pieces protrude out of the groove. Workpieces are guided into the rails through the vibration disc and stably pushed through the sliding seat driven by the air cylinder, all the rails are matched with the bottom plate so that the efficiency of feeding the workpieces into the cold header can be improved, the workpieces are positioned in the space formed by the protruding blocks and the limiting arc pieces, and the workpieces can be conveniently grabbed by a mechanical arm and are not prone to loosening.

Description

Technical Field

[0001] The utility model relates to the technical field of cold heading machine positioning clamping, in particular to a cold heading machine positioning clamping. Background Art

[0002] Cold heading machine is a mechanical device that uses cold extrusion technology to form metal parts. It uses high-speed punching force to apply pressure to metal raw materials (such as screws, metal wires, etc.) at room temperature, so that they pass through the die to form the desired shape. This processing method is usually used to produce screws, nuts, nails, rivets and various other standard and non-standard fasteners and special parts.

[0003] The main advantages of cold heading machines are their high efficiency and high material utilization, fast processing speed, and can save a lot of raw materials. In addition, since the processing is completed in a cold state, the strength and toughness of most metal materials will be improved. In addition, the cold heading forming process can also ensure that the parts have good surface finish and dimensional accuracy, reducing the need for subsequent machining.

[0004] The structure of a cold heading machine usually includes a feeding mechanism, a punching mechanism, a die system, and a control system. The feeding mechanism is responsible for feeding the metal raw materials into the punching position, the punching mechanism applies force for forming, the die system determines the shape and size of the formed parts, and the control system regulates and controls the operation of the entire machine to ensure its accurate and efficient operation.

[0005] Since cold heading technology can process high-precision and complex shapes, it has been widely used in many fields such as the automotive industry, construction industry, home appliances, and industrial equipment manufacturing.

[0006] The cold heading machine feeds the material to the positioning clamp through the feeding mechanism, and then the workpiece to be processed on the positioning clamp is clamped by the robotic arm and pneumatic fingers. The current positioning clamp can carry a single workpiece to be processed (such as a nut), but the workpiece to be processed is merely placed on it and cannot be positioned. Under the influence of the vibration of the vibrating plate in the feeding mechanism, it may fall off the positioning clamp.

[0007] Therefore, a cold heading machine positioning clamp is proposed to solve or alleviate the above problems. Utility Model Content

[0008] The utility model aims to solve the shortcomings in the prior art and proposes a positioning clamp for a cold heading machine.

[0009] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0010] A cold heading machine positioning clamp comprises a base plate, a top surface of one end of the base plate is provided with a downwardly recessed groove, a top surface of the base plate is provided with a movable groove connected to the groove and perpendicular to the groove, a limiting arc piece fixedly connected to the base plate and located in the groove and on both sides of the movable groove, the limiting arc piece protrudes out of the groove, a notch groove smaller than the width of the movable groove is formed between adjacent limiting arc pieces, a protrusion is fixedly connected at the connection between the limiting arc piece and the movable groove, the protrusion is in the shape of a flat plate and includes a plane portion parallel to the inner wall of the movable groove and an arc portion portion located on both sides of the plane portion, and an accommodating space is formed between adjacent limiting arc pieces and adjacent protrusions.

[0011] Preferably, a push block is slidably connected in the movable slide groove.

[0012] Preferably, one end of the bottom plate away from the groove is fixedly connected to a vertically arranged connecting plate, a telescopic member is arranged on the connecting plate, and the telescopic member is fixedly connected to the push block.

[0013] Preferably, the telescopic member comprises a cylinder fixedly connected to the connecting plate, a guide rod penetrating the connecting plate, and a slide seat fixedly connected to the guide rod and the piston rod in the cylinder, and the slide seat is fixedly connected to the push block.

[0014] Preferably, it further comprises a guide component, the top surface of the base is provided with an inlet groove which runs through its side wall transversely and is connected with the movable groove, and the guide component is connected with the inlet groove.

[0015] Preferably, the guide assembly comprises a vibration plate and a track connected thereto, and a terminal discharge port of the track is connected to an inlet slot.

[0016] Preferably, the number of the base plates is several, the number of channels in the track is the same as the number of the base plates, an intermittent groove is provided in the length direction of the track, the guide assembly also includes a vertical plate fixedly connected vertically to the side wall of the base plate, the upper end of the vertical plate is located in the intermittent groove, and the top surface of the vertical plate is provided with a guide groove that penetrates the interior and is connected to the inlet groove at the lower end, and the cross-section of the guide groove is S-shaped.

[0017] The utility model has the following beneficial effects:

[0018] The utility model utilizes a vibration plate to automatically convey a large number of workpieces to be processed to the track, and improves the efficiency of workpiece positioning, clamping and transmission by matching the number of tracks and base plates. The workpiece slides in the guide grooves of the track and the vertical plate to the inlet groove of the base plate, and then the slide is driven by the cylinder to cooperate with the guide rod to move smoothly, thereby reducing shaking. The workpiece reaches the moving groove through the inlet groove and is pushed toward the protrusion under the action of the push block. The arc surface and flat surface design of the protrusion cooperate with the cylinder force to provide appropriate space for the workpiece and mechanical clamping, and the accommodating space for fixing is formed by the extrusion deformation of the protrusion and the cooperation with the limiting arc piece. The design of the suspended groove of the limiting arc piece ensures that the workpiece is suspended above the groove to avoid interference with the subsequent clamping of the mechanical arm and the pneumatic finger, and at the same time, the notch groove expands after the workpiece is subjected to force to facilitate the extraction of the workpiece. This design ensures the accurate positioning and independence of the workpiece in clamping, which is conducive to maintaining stability and not hindering continuous operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 The structure of the utility model is shown in FIG. Figure 1 ;

[0020] Figure 2 for Figure 1 The enlarged view of point A in the middle;

[0021] Figure 3 The structure of the utility model is shown in FIG. Figure 2 ;

[0022] Figure 4 for Figure 3 The enlarged view of point B in the middle;

[0023] Figure 5 for Figure 3 Enlarged view of point C in the middle.

[0024] 1. Vibrating plate; 2. Track; 3. Vertical plate; 31. Slide groove; 32. Guide groove; 4. Connecting seat; 5. Bottom plate; 51. Connecting plate; 52. Cylinder; 53. Guide rod; 54. Sliding seat; 55. Push block; 56. Moving groove; 561. Inlet groove; 57. Protrusion; 571. Plane part; 572. Arc part; 58. Limiting arc piece; 581. Notch groove; 59. Groove. DETAILED DESCRIPTION

[0025] 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.

[0026] A cold heading machine positioning clamp, such as Figure 1 and 3 As shown, it includes a connecting seat 4, a bottom plate 5 fixedly connected to the connecting seat 4, and a guide component, such as Figure 2 As shown, a groove 59 is formed on the top surface of one end of the bottom plate 5, and a moving groove 56 is formed on the top surface of the bottom plate 5, which is connected to the groove 59 and is perpendicular to the groove 59. Figure 4 As shown, an inlet groove 561 is provided on the top surface of the base, which runs horizontally through its side wall and is connected to the movable groove 56. The guide assembly is connected to the inlet groove 561. A limiting arc piece 58 is fixedly connected to the bottom plate 5 and is located in the groove 59 and on both sides of the movable groove 56. The limiting arc piece 58 made of plastic material protrudes out of the groove 59. A notch groove 581 smaller than the groove width of the movable groove 56 is formed between adjacent limiting arc pieces 58. A protrusion 57 made of plastic material is fixedly connected at the connection between the limiting arc piece 58 and the movable groove 56. The protrusion 57 is in the shape of a plate and includes a plane portion 571 parallel to the inner wall of the movable groove 56 and an arc portion 572 located on both sides of the plane portion 571. An accommodating space is formed between adjacent limiting arc pieces 58 and adjacent protrusions 57.

[0027] One end of the bottom plate 5 away from the groove 59 is fixedly connected to a vertically arranged connecting plate 51, and a telescopic member is arranged on the connecting plate 51, and the telescopic member is fixedly connected to a push block 55, and a push block 55 is slidably connected in the movable slide groove 31. The telescopic member includes a cylinder 52 fixedly connected to the connecting plate 51, a guide rod 53 arranged to pass through the connecting plate 51, and a slide seat 54 fixedly connected to the guide rod 53 and the piston rod in the cylinder 52, and the slide seat 54 is fixedly connected to the push block 55.

[0028] The guide assembly includes a vibration plate 1, a track 2 connected thereto, and a vertical plate 3 vertically fixedly connected to the side wall of the bottom plate 5. Figure 4 and 5 As shown, the end discharge port of the track 2 is connected to the inlet groove 561, the number of the bottom plates 5 is several, the number of channels in the track 2 is the same as the number of the bottom plates 5, an intermittent groove is opened in the length direction of the track 2, the upper end of the vertical plate 3 is located in the intermittent groove, and the top surface of the vertical plate 3 is opened with a guide groove 32 that passes through the interior thereof and is connected to the inlet groove 561 at the lower end, and the cross-section of the guide groove 32 is S-shaped.

[0029] When the utility model transfers the workpieces to be processed from the feeding mechanism to the cold heading machine, it is only necessary to put a large number of workpieces to be processed into the vibration plate 1. Under the operation of the vibration plate 1, it guides the workpieces to be processed to enter the track 2 in sequence. In order to speed up the work efficiency of the positioning clamp to be transferred to the cold heading machine, the number of tracks 2 is the same as the number of bottom plates 5, so that except for the last bottom plate 5 on the track 2 that can be delivered through its discharge end, the other workpieces to be processed will slide into the inlet groove 56 of the bottom plate 5 through the guide groove 32 on the top surface of the vertical plate 3 on each track 2. 1, and then the piston rod of the cylinder 52 is displaced, thereby driving the slide 54 to move together. During the displacement of the slide 54, since the guide rod 53 penetrates the connecting plate 51, the guide rod 53 can also guide the displacement of the slide 54, so that the slide 54 is more stable and less likely to shake when it is displaced. Once the slide is displaced, it will push the push block 55 located in the moving groove 56 to move. After the workpiece to be processed passes through the inlet groove 561, it is resisted by the subsequent workpiece to be processed, so that it is located at the junction of the inlet groove 561 and the moving groove 56. At this time, The push of the push block 55 enables it to push the workpiece to be processed into the moving groove 56 for displacement until the workpiece to be processed is pushed to the position of the protrusion 57. The protrusions 57 on both sides have two arc surface parts 572. Therefore, under the continuous force of the cylinder 52, the force will be transmitted to the workpiece to be processed through the push block 55, so that the workpiece to be processed squeezes the protrusion 57 to deform it. The arrangement of the flat surface part 571 on the protrusion 57 is to form a space for the workpiece to be processed to pass through as much as possible, so that the workpiece to be processed can be located in the accommodating space between the protrusion 57 and the limiting arc piece 58, and by The limiting arc piece 58 protrudes from the groove 59, so when the workpiece to be processed is located in the accommodating space, it can also be suspended relative to the groove 59, so as to leave enough space for the subsequent robotic arm and pneumatic fingers to clamp the workpiece to be processed, so that the limiting arc piece 58 is deformed by force, and the notch groove 581 is expanded, and the workpiece to be processed is pulled out from the notch groove 581. In this way, the workpiece to be processed can be properly positioned in this positioning clamping device, and is not prone to loosening. In addition, each workpiece to be processed is placed independently, and will not be hindered by the subsequent robotic arm's clamping.

[0030] 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 cold heading machine positioning clamp, characterized in that: The invention comprises a bottom plate (5), wherein a groove (59) recessed downward is formed on the top surface of one end of the bottom plate (5), and a movable groove (56) connected to and perpendicular to the groove (59) is formed on the top surface of the bottom plate (5). A limiting arc piece (58) is fixedly connected to the bottom plate (5) and is located in the groove (59) and on both sides of the movable groove (56). The limiting arc piece (58) protrudes from the groove (59), and a notch groove (581) smaller than the groove width of the movable groove (56) is formed between adjacent limiting arc pieces (58). A convex block (57) is fixedly connected to the connecting portion between the limiting arc piece (58) and the movable groove (56). The convex block (57) is in the shape of a flat plate and comprises a plane portion (571) parallel to the inner wall of the movable groove (56) and a curved surface portion (572) located on both sides of the plane portion (571), and a receiving space is formed between adjacent limiting arc pieces (58) and adjacent convex blocks (57).

2. A cold heading machine positioning clamp according to claim 1, characterized in that: A push block (55) is slidably connected in the movable groove (56).

3. A cold heading machine positioning clamp according to claim 2, characterized in that: One end of the bottom plate (5) away from the groove (59) is fixedly connected to a vertically arranged connecting plate (51), and a telescopic member is arranged on the connecting plate (51), and the telescopic member is fixedly connected to the push block (55).

4. A cold heading machine positioning clamp according to claim 3, characterized in that: The telescopic member comprises a cylinder (52) fixedly connected to a connecting plate (51), a guide rod (53) penetrating the connecting plate (51), and a slide seat (54) fixedly connected to the guide rod (53) and a piston rod in the cylinder (52); the slide seat (54) is fixedly connected to a push block (55).

5. A cold heading machine positioning clamp according to claim 1, characterized in that: It also includes a guide component, and an inlet groove (561) is provided on the top surface of the bottom plate (5) and extends transversely through the side wall thereof and is connected to the movable groove (56), and the guide component is connected to the inlet groove (561).

6. A cold heading machine positioning clamp according to claim 5, characterized in that: The guide assembly comprises a vibration plate (1) and a track (2) connected thereto, wherein the end discharge port of the track (2) is connected to the inlet groove (561).

7. A cold heading machine positioning clamp according to claim 6, characterized in that: The number of the bottom plates (5) is plural, the number of channels in the track (2) is the same as the number of the bottom plates (5), an intermittent groove is provided in the length direction of the track (2), the guide assembly further comprises a vertical plate (3) vertically fixedly connected to the side wall of the bottom plate (5), the upper end of the vertical plate (3) is located in the intermittent groove, and the top surface of the vertical plate (3) is provided with a guide groove (32) penetrating the interior thereof and connected to the inlet groove (561) at the lower end, and the cross section of the guide groove (32) is S-shaped.

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