Adjusting device for main sliding table on cold heading forming machine

Abstract

The utility model discloses an adjusting device for a main sliding table on a cold heading forming machine, which comprises a machine frame, the main sliding table is arranged on the machine frame, guide rails are respectively arranged on two sides of the main sliding table, inclined wedge surfaces and right-angle surfaces are processed on the guide rails, and inclined pins installed on the machine frame are matched with the inclined wedge surfaces of the guide rails. A first sliding pin and a second sliding pin which are fixed on the machine frame respectively support and are attached to the right-angle face of the guide rail, the angle pin can longitudinally adjust the gap between the angle pin and the main sliding table, and the first sliding pin and the second sliding pin can transversely adjust the gap between the angle pin and the main sliding table. Through up-and-down matching of the angle pin and the main sliding table and left-and-right matching of the sliding pin and the main sliding table, longitudinal and transverse gaps between the angle pin and the main sliding table are accurately adjusted, and the situation that deviation occurs when the main sliding table moves due to the fact that the clearance fit between the angle pin and the main sliding table and the clearance fit between the sliding pin and the main sliding table are too large or too small is avoided; the guide rail of the main sliding table can be adjusted more accurately and more conveniently, and therefore the stability of stamping equipment under high-precision machining is guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of sub-mechanism improvement design of cold heading machines, in particular to an adjusting device for a main slide table on a cold heading forming machine. Background Art

[0002] Cold heading machine is a kind of stamping machine in mechanical manufacturing. It is a special equipment mainly based on upsetting processing technology and is specially used for mass production of nuts, bolts and other fasteners. Among them, the main slide on the cold heading machine is used to bear the movable mold part and is a key component to realize the cold heading process of the workpiece. At present, in the cold heading forming machine equipment, the guide rails of the main slide are mostly made of copper plates and steel plates fixed to the main slide, or copper plates and the main slide are fixed to the steel plate, or steel plates and the main slide are matched. Most of these structures cannot be adjusted quickly after being fixed. After long-term use, the mating surface of the main slide and the guide rail will wear. Since it cannot be quickly adjusted and replaced, the machine must be disassembled for repair after wear.

[0003] In the prior art, the patent with announcement number CN211708016U discloses a main slide device of a cold heading machine, including a bed, a crankshaft, a connecting rod and a slider, the bottom end of the slider is provided with a slide rail and slidably connected with the bed, the slide rail is fixed on the bed, the crankshaft is arranged in the bed and at the rear side of the slider, one end of the connecting rod is connected with the crankshaft, the other end of the connecting rod is connected with the slider, a pull rod assembly is arranged on the rear side above the slider, the pull rod assembly passes through the rear side plate of the bed and is slidably connected with the bed, the pull rod assembly is above the crankshaft, and the pull rod assembly is arranged parallel to the slide rail. Compared with the prior art, the main slide device of a cold heading machine provided by the utility model is provided with a pull rod assembly on the rear side of the slider, the structure is simple, a compression spring is arranged on the pull rod, the overall sliding stability of the slider on the slide rail is higher, the gap between the crankshaft, the connecting rod and the slider is eliminated, the front dead point of the slider is more stable, the processing stability of the cold heading machine is improved, the processing accuracy of the product is ensured, and the practicability is strong.

[0004] In the above technical solution, although the compression spring provided on the pull rod makes the overall sliding stability of the slider on the slide rail higher, for the fixed structure of the main slide, the slider is slidably arranged in the inner cavity of the bed and needs to be disassembled and assembled as a whole. The replacement operation is still relatively complicated and time-consuming.

[0005] The patent with the announcement number CN116748445A discloses a cold heading machine. The cold heading machine includes a bed, on which a feeding unit, a cutting unit, a transmission unit, a main slide slidably connected, and a main mold box fixedly connected are installed. The transmission unit is used to drive the main slide slidably connected to the bed to slide. The main mold box is arranged opposite to the main slide. When the transmission unit drives the main slide to slide back and forth on the bed, the cut bar between the main slide and the main mold box is cold headed. The transmission unit includes a first connecting rod, a second connecting rod and a push rod. The first connecting rod, the second connecting rod and the push rod form a "Y"-shaped or "A"-shaped structure. When the main crankshaft rotates, the front mold installed on the main slide can cold head the bar for a longer time, so that the qualified rate of the bar is improved.

[0006] In the above technical solution, although the limiting structure 280 is used to limit the left and right positions of the main slide 300, the main slide 300 can be well limited at any temperature, and the main slide 300 can move linearly in the left and right directions under the drive of the third connecting rod 260. However, there is no corresponding limit for the vertical movement of the main slide, and there is a risk of jumping.

[0007] In order to solve one of the above problems, the present application provides an adjustment device for a main slide on a cold heading machine. Utility Model Content

[0008] The purpose of the utility model is to solve the problems existing in the prior art, and to propose an adjustment device for the main slide on a cold heading forming machine, which accurately adjusts the longitudinal and lateral gaps between the main slide through the cooperation between the inclined pin and the main slide up and down, and between the sliding pin and the main slide left and right, to avoid the gaps between the inclined pin and the main slide and between the sliding pin and the main slide being too large or too small, resulting in deviations when the main slide moves.

[0009] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: an adjustment device for the main slide on a cold heading machine, comprising a frame, a main slide is arranged on the frame, the main slide is placed in an upper opening cavity surrounded by the various plates of the frame, guide rails are respectively arranged on both sides of the main slide, the two guide rails are symmetrically arranged, used to support the main slide and enable the main slide to slide on the guide rails, the guide rails are processed with inclined wedge surfaces and right-angle surfaces, the inclined pins installed on the frame match the inclined wedge surfaces of the guide rails, the first sliding pin and the second sliding pin fixed on the frame respectively support and fit the right-angle surfaces of the guide rails, the inclined pin can longitudinally adjust the gap between the main slide, and the first sliding pin and the second sliding pin can transversely adjust the gap between the main slide.

[0010] Furthermore, as described above, two guide rails are symmetrically arranged on both sides of the main slide, and the guide rails are slidably arranged between the oblique pin and the first sliding pin and the second sliding pin. The first sliding pin and the second sliding pin are rectangular structures, and the upper part of the rectangle is used to support the lower part of the guide rail, and the side of the rectangle is used to fit the side of the guide rail.

[0011] Furthermore, as described above, two inclined pins are provided and symmetrically mounted on the frame, the lower portion of the inclined pin is processed into an inclined surface to cooperate with the inclined wedge surface processed on the guide rail, the upper portion of the inclined pin is a horizontal surface and is processed with a screw hole, the inclined pin is fixed to the frame by screws through the screw holes processed on the upper portion, and the inclined surface of the inclined pin is made close to or away from the inclined wedge surface processed on the guide rail by adjusting the depth of the screw connection, the side portion of the inclined pin is a vertical surface, and the screws on the frame support the side portion of the inclined pin to play a limiting role.

[0012] Furthermore, the first sliding pin and the second sliding pin as described above have the same structure and are symmetrically fixed on the frame.

[0013] Furthermore, one of the guide rails is located between an oblique pin and a first sliding pin, and another of the guide rails is located between another oblique pin and a second sliding pin.

[0014] Furthermore, the guide rail as described above comprises a vertical plate and a horizontal plate of an integrated structure, the side surface of the vertical plate and the bottom surface of the horizontal plate form a right-angle surface, and the upper portion of the horizontal plate is processed with an inclined wedge surface.

[0015] Furthermore, the above-mentioned oblique pin is fixed to the frame by the cooperation of the headless hexagon socket bolt and the second hexagon socket bolt. The headless hexagon socket bolt plays a limiting role, and the second hexagon socket bolt adjusts the longitudinal height position of the oblique pin according to the tightening degree.

[0016] Furthermore, the first sliding pin and the second sliding pin as described above are both fixed to the frame by a plurality of locking nuts and a first hexagon socket bolt.

[0017] Furthermore, the headless hexagon socket bolt as described above is transversely threadedly connected to the frame and its end abuts against the side of the oblique pin, and the second hexagon socket bolt is vertically threadedly connected to the oblique pin and the frame; the first internal angle bolt is threadedly connected to the locking nut and transversely threadedly connected to the first sliding pin or the second sliding pin.

[0018] Furthermore, as described above, the inclined pin, the first sliding pin, the second sliding pin, the inclined wedge surface and the right-angle surface of the guide rail are all processed with oil grooves. By adding lubricating oil to the above-mentioned oil grooves, the friction between the components is reduced, so that the main slide of the cold heading machine is less worn during operation.

[0019] Compared with the prior art, the beneficial effects of the utility model are as follows: the device accurately adjusts the longitudinal and lateral gaps with the main slide through the cooperation between the inclined pin and the main slide up and down, and between the sliding pin and the main slide left and right, to avoid the gaps between the inclined pin and the main slide and between the sliding pin and the main slide being too large or too small, resulting in deviations when the main slide moves, so that the guide rails of the main slide can be adjusted more accurately and conveniently, thereby ensuring the stability of the stamping equipment under high-precision processing. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a three-dimensional diagram of the utility model;

[0021] Figure 2 for Figure 1 A partial cross-sectional view of

[0022] Figure 3 It is a top view of the utility model.

[0023] In the figure: 1. main slide; 2. frame; 3. oblique pin; 4. first slide pin; 5. locking nut; 6. first hexagon socket bolt; 7. headless hexagon socket bolt; 8. second hexagon socket bolt; 9. second slide pin. DETAILED DESCRIPTION

[0024] In the description of the present invention, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first" and "second" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0025] In the description of the present utility model, it should be noted that, unless otherwise clearly specified and limited, the terms "fixed", "installed", "connected", "set", etc. should be understood in a broad sense. For example, when an element is referred to as being "fixed to" another element, it can be directly on the other element or there can be a central element. When an element is considered to be "installed on" another element, it can be directly installed on the other element or there can be a central element. When an element is considered to be "connected" to another element, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, or it can be a communication between the two elements.

[0026] For those skilled in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0027] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0028] Embodiment 1

[0029] Reference Figure 1-3 As shown, the utility model is an adjustment device for the main slide on a cold heading forming machine, comprising a frame 2, on which a main slide 1 is arranged. Specifically, the main slide 1 is placed in an upper open cavity surrounded by the plates of the frame 2, and guide rails are respectively arranged on both sides of the main slide 1, and the two guide rails are symmetrically arranged to support the main slide 1 and enable the main slide 1 to slide on the guide rails, and an inclined wedge surface and a right-angle surface are processed on the guide rails, the inclined wedge surface is located on the upper part of the right-angle surface and the two do not interfere with each other, the inclined pin 3 installed on the frame 2 cooperates with the inclined wedge surface of the guide rail, the inclined pin 3 is located above the inclined wedge surface and can longitudinally adjust the gap with the main slide 1, the first sliding pin 4 and the second sliding pin 9 fixed on the frame 2 respectively support and fit the right-angle surface of the guide rail, the first sliding pin 4 and the second sliding pin 9 are located on the side of the right-angle surface and can laterally adjust the gap with the main slide 1.

[0030] Embodiment 2

[0031] Reference Figure 1-3 As shown, based on the technical solution of embodiment one, an adjustment device for the main slide on a cold heading machine, with respect to the structural design of the inclined pin 3 and the sliding pin, two guide rails are symmetrically arranged on both sides of the main slide 1, and the guide rails are slidably arranged between the inclined pin 3 and the first sliding pin 4 and the second sliding pin 9. The first sliding pin 4 and the second sliding pin 9 are rectangular structures, the upper part of which is used to support the lower part of the guide rail, and the side part thereof is used to fit the side part of the guide rail.

[0032] Furthermore, two inclined pins 3 are provided and symmetrically mounted on the frame 2. Specifically, the lower portion of the inclined pin 3 is processed into an inclined surface to cooperate with the inclined wedge surface processed on the guide rail. The upper portion of the inclined pin 3 is a horizontal surface and is processed with a screw hole. The inclined pin 3 is fixed to the frame 2 by screwing through the screw hole processed on the upper portion. By adjusting the depth of the screw connection, the inclined surface of the inclined pin 3 is made close to or away from the inclined wedge surface processed on the guide rail. The side of the inclined pin 3 is a vertical surface, and the screws on the frame 2 support the side of the inclined pin 3 to play a limiting role.

[0033] Furthermore, the first sliding pin 4 and the second sliding pin 9 have the same structure and are symmetrically fixed on the frame 2. The two oblique pins 3 have the same structure, and the two guide rails have the same structure, so that one guide rail is located between one oblique pin 3 and the first sliding pin 4, and the other guide rail is located between the other oblique pin 3 and the second sliding pin 9.

[0034] Embodiment 3

[0035] Reference Figure 1-3 As shown, based on the technical solution of the second embodiment, an adjusting device for the main slide on the cold heading forming machine, for the specific structural design of the inclined pin 3 and the sliding pin and the guide rail, refer to Figure 2 As shown, the guide rail includes a vertical plate and a horizontal plate of an integrated structure, the side surface of the vertical plate and the bottom surface of the horizontal plate form a right-angle surface, and the upper portion of the horizontal plate is processed with an inclined wedge surface.

[0036] Furthermore, the oblique pin 3 is fixed to the frame 2 by the cooperation of the headless hexagon socket bolt 7 and the second hexagon socket bolt 8. The headless hexagon socket bolt 7 is transversely threaded to the frame 2 and the end thereof abuts against the side of the oblique pin 3, playing the role of horizontal limit. The second hexagon socket bolt 8 is vertically threaded to the oblique pin 3 and the frame 2. By adjusting the tightening degree of the second hexagon socket bolt 8, the distance between the oblique pin 3 and the oblique wedge surface processed on the guide rail can be longitudinally adjusted. In addition, the first sliding pin 4 and the second sliding pin 9 are both fixed to the frame 2 by a plurality of locking nuts 5 and the first hexagon socket bolt 6. A through hole is processed on the side plate of the frame 2. The first hexagon socket bolt 6 is used to penetrate the through hole and threadedly connect the first sliding pin 4 or the second sliding pin 9. The locking nut 5 adjusts the positional relationship on the first hexagon socket bolt 6. By adjusting the tightening degree of the first hexagon socket bolt 6, the distance between the two sliding pins and the vertical surface processed on the guide rail can be horizontally adjusted. Specifically, the first internal angle bolt is threadedly connected to the locking nut 5 and is transversely threadedly connected to the first sliding pin 4 or the second sliding pin 9 .

[0037] Furthermore, the inclined pin 3, the first sliding pin 4, the second sliding pin 9, the inclined wedge surface and the right-angle surface of the guide rail are all processed with oil grooves. By adding lubricating oil to the above-mentioned oil grooves, the friction between the components is reduced, so that the main slide 1 of the cold heading machine is less worn during operation.

[0038] In order to make the adjustment of the whole device uniform, a plurality of adjusting bolts are usually provided. Figure 1 As shown, a plurality of adjusting bolts are distributed along the upper surface of the inclined pin 3 and the side edge of the frame 2 to form a straight line or a rectangular structure, so that the bolts can more comprehensively adjust the position of the inclined pin 3 or the sliding pin, such as completing the longitudinal adjustment of the inclined pin 3 and the lateral adjustment of the sliding pin, and can well limit the main slide 1 under different working conditions.

[0039] In the device of the utility model, the main slide 1 is an iron (iron alloy) slide. For example, when the cold heading machine is used in the north, the temperature difference between winter and summer in the north may be more than 50°C, and the slide will produce more obvious thermal expansion and contraction when the room temperature changes. In order to enable the main slide 1 to still slide smoothly compared to the frame 2, the guide rail needs to be designed with longitudinal inclined pins 3 and transverse sliding pins to cooperate. Specifically, when the temperature is low in winter, the main slide 1 is pre-cooled and shrunk. At this time, it is necessary to reduce the distance between the inclined pin 3 and the sliding pin and the guide rail by adjusting the bolt rotation so that the main slide 1 can slide normally. Similarly, when the temperature is high in summer, the main slide 1 expands at a higher temperature. At this time, it is necessary to increase the distance between the inclined pin 3 and the sliding pin and the guide rail by adjusting the bolt rotation so that the main slide 1 can slide normally.

[0040] In the device of the utility model, the assembly and matching relationship of various components involved, nuts, bolts and other components are existing technologies or materials, and the relevant technical personnel can directly purchase or customize them from the market according to the required product models and specifications.

[0041] The electrical components mentioned in the text are all connected to an external main controller and 220V mains or industrial electricity, and the main controller can be a conventional known device such as a computer that plays a control role.

[0042] The above is only a preferred specific embodiment of the utility model, and the common knowledge such as the known specific structure and characteristics in the scheme is not described too much here. For those skilled in the art, it is obvious that the utility model is not limited to the details of the above-mentioned embodiment, and the utility model can be implemented in other specific forms without departing from the spirit or basic characteristics of the utility model. Therefore, no matter from which point of view, the embodiment should be regarded as exemplary and non-restrictive. Any technician familiar with the technical field within the technical scope disclosed by the utility model, according to the technical scheme of the utility model and its utility model concept, shall be covered within the protection scope of the utility model.

Claims

1. An adjusting device for a main slide on a cold heading machine, comprising a frame (2), on which a main slide (1) is arranged, characterized in that: Guide rails are provided on both sides of the main slide (1), and the guide rails are processed with inclined wedge surfaces and right-angle surfaces. The inclined pins (3) installed on the frame (2) cooperate with the inclined wedge surfaces of the guide rails. The first sliding pin (4) and the second sliding pin (9) fixed on the frame (2) respectively support and fit the right-angle surfaces of the guide rails. The inclined pin (3) can adjust the gap between the main slide (1) longitudinally, and the first sliding pin (4) and the second sliding pin (9) can adjust the gap between the main slide (1) transversely.

2. The adjusting device for the main slide of a cold heading machine according to claim 1, characterized in that: Two guide rails are symmetrically arranged on both sides of the main slide (1), and the guide rails are slidably arranged between the oblique pin (3) and the first sliding pin (4) and the second sliding pin (9).

3. The adjusting device for the main slide of a cold heading machine according to claim 2, characterized in that: The oblique pins (3) are provided with two and are symmetrically mounted on the frame (2).

4. The adjusting device for the main slide on the cold heading machine according to claim 3 is characterized in that: The first sliding pin (4) and the second sliding pin (9) have the same structure and are symmetrically fixed on the frame (2).

5. The adjusting device for the main slide of a cold heading machine according to claim 4, characterized in that: One of the guide rails is located between an inclined pin (3) and a first sliding pin (4), and the other guide rail is located between another inclined pin (3) and a second sliding pin (9).

6. The adjusting device for the main slide of a cold heading machine according to claim 1, characterized in that: The guide rail comprises a vertical plate and a horizontal plate of an integrated structure, the side surface of the vertical plate and the bottom surface of the horizontal plate form a right-angle surface, and the upper portion of the horizontal plate is processed with an inclined wedge surface.

7. The adjusting device for the main slide of a cold heading machine according to claim 6, characterized in that: The oblique pin (3) is fixed on the frame (2) by means of a headless hexagon socket bolt (7) and a second hexagon socket bolt (8).

8. The adjusting device for the main slide of a cold heading machine according to claim 7, characterized in that: The first sliding pin (4) and the second sliding pin (9) are both fixed on the frame (2) via a plurality of locking nuts (5) and a first hexagon socket bolt (6).

9. The adjusting device for the main slide of a cold heading machine according to claim 8, characterized in that: The headless hexagon socket bolt (7) is transversely threadedly connected to the frame (2) and its end abuts against the side of the oblique pin (3); the second hexagon socket bolt (8) is vertically threadedly connected to the oblique pin (3) and the frame (2); the first hexagon socket bolt is threadedly connected to the locking nut (5) and transversely threadedly connected to the first sliding pin (4) or the second sliding pin (9).

10. An adjusting device for a main slide on a cold heading machine according to any one of claims 1 to 9, characterized in that: The oblique pin (3), the first sliding pin (4), the second sliding pin (9), the oblique wedge surface and the right-angle surface of the guide rail are all processed with oil grooves.

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