Bar clamping device for circular sawing machine

Abstract

The utility model relates to the technical field of circular sawing machines, in particular to a bar clamping device for a circular sawing machine, which comprises a placing plate and a clamping mechanism. The clamping mechanism is arranged at the front end of the containing groove and comprises a top plate, a push plate and a top pressing assembly. Cutting gaps are formed in the top plate and the push plate; the jacking assembly comprises a jacking plate and an auxiliary structure, and a containing groove is formed in the middle of the jacking plate in the second direction; an arc-shaped clamping plate is arranged in the accommodating groove; the clamping plate is an elastic plate; the concave surface of the clamping plate is arranged downwards; when the top pressing plate abuts against the upper end of the bar body, the auxiliary structure drives the clamping plate to get close to the bar body and be attached to the bar body to adapt to bar bodies of different diameters, so that the contact area when the bar body is clamped is increased, the clamping firmness of the bar body is improved, and the situation that the cutting effect is affected due to rotation of the bar body during cutting is prevented.

Description

Technical Field

[0001] The utility model relates to the technical field of circular saw machines, in particular to a bar material clamping device used for circular saw machines. Background Art

[0002] When a circular saw machine cuts a workpiece, it needs to clamp the workpiece, and the workpiece needs to be fixed and clamped before and after cutting. When an existing circular saw machine cuts a bar, it needs to limit the position to prevent rolling during cutting, which affects the cutting effect.

[0003] In the prior art, for example, the Chinese patent with the announcement number CN220427022U, entitled Feeding Clamping Anti-slip Mechanism for High-speed Circular Saw Machine, states in the public technical solution that, through the arrangement of the clamping block, the fixed clamp, the guide rod, the oil cylinder, the guide sleeve and the floating clamping plate, the oil cylinder can stably push the clamping block forward under the limited sliding of the guide rod and the guide sleeve, so that the front and rear end thrust and moving speed of the clamping block are the same, and the floating clamping plate on one side of the clamping block synchronously and preferentially contacts the workpiece, and the front and rear ends of the workpiece are clamped in cooperation with the fixed clamp to prevent the clamping block from contacting the workpiece at a single point, thereby increasing the firmness of the clamping to a certain extent. However, when the floating clamping plate and the fixed clamp clamp the bar material, the contact with the bar material is a line contact. When the circular saw blade cuts the bar material and generates a rotational force on the bar material, the small contact area may affect the firmness of the clamping of the bar material, thereby affecting the cutting effect of the bar material. Utility Model Content

[0004] The utility model provides a bar material clamping device for a circular saw machine to solve the above problem.

[0005] The utility model adopts the following technical scheme: a bar material clamping device for a circular saw machine, comprising a placement plate and a clamping mechanism;

[0006] The placement plate is arranged along a first direction; the first direction is a horizontal direction; a U-shaped placement groove with an opening facing upward is arranged on the upper end surface of the placement plate;

[0007] The clamping mechanism is arranged at the front end of the placement slot, and includes a top plate, a push plate, and a top pressing assembly; the top plate and the push plate are distributed in the placement slot along the second direction; the second direction is a horizontal direction; the second direction and the first direction are arranged vertically; the top plate is fixed on the side wall on one side of the placement slot; the push plate is slidably arranged on the side wall on the other side of the placement slot along the second direction; cutting gaps are arranged on both the top plate and the push plate;

[0008] There are two pressing assemblies, which are distributed on both sides of the cutting gap; the pressing assemblies include a pressing plate and an auxiliary structure; the pressing plate is arranged above the placement plate to slide up and down along the bisector of the angle between the top plate and the placement plate; so that the pressure applied to the bar body by the pressing plate when pressing the bar body passes through the axis of the bar body;

[0009] A receiving groove is provided in the middle of the top pressure plate along the second direction; a circular arc-shaped clamping plate is provided in the receiving groove; the clamping plate is an elastic plate; the concave surface of the clamping plate is arranged downward; and both ends of the clamping plate are slidably arranged in the receiving groove.

[0010] The auxiliary structure is used to drive the clamping plate to approach the rod body and fit on the rod body when the top pressure plate is pressed against the upper end of the rod body, so as to adapt to rod bodies of different diameters, increase the contact area when clamping the rod body, improve the clamping firmness of the rod body, and prevent the rod body from rotating during cutting and affecting the cutting effect.

[0011] Furthermore, the push plate is connected to a first hydraulic rod; and the upper end of the push plate is connected to a second hydraulic rod.

[0012] Further, the auxiliary structure includes a fitting hydraulic cylinder and a power unit;

[0013] Two fitting hydraulic cylinders are symmetrically arranged; the fitting hydraulic cylinders are arranged in the receiving groove and are located above the clamping plate; the fitting hydraulic cylinders are fixed on the groove wall of the receiving groove; the piston rods of the fitting hydraulic cylinders are arranged up and down, and the lower ends are hinged to the end of the clamping plate;

[0014] The power unit is used to drive the piston rod of the fitting hydraulic cylinder to extend downward, drive the clamping plate to approach the bar body and fit on the bar body, adapt to bar bodies of different diameters, and increase the contact area when clamping the bar body.

[0015] Further, the power unit includes a power chamber; the power chamber is arranged at the center of the top pressure plate, and a slide plate is slidably installed in the power chamber; the slide plate divides the power chamber into an upper chamber and a lower chamber; the upper chamber is filled with hydraulic oil; the upper chamber and the oil chamber of the hydraulic cylinder are connected through an oil pipe; a first spring is connected between the slide plate and the cavity wall of the power chamber; and a push rod arranged up and down is fixed to the lower end of the slide plate;

[0016] The push rod is a telescopic rod of sleeve type; a second spring is arranged inside the push rod; the stiffness coefficient of the second spring is greater than that of the first spring; an abutment plate is fixed to the lower end of the push rod. When the second hydraulic rod drives the push plate to approach the bar body, the abutment plate first abuts against the bar body, and as the push plate continues to move downward, the slide plate is driven to move upward, and the hydraulic oil silver ammonia solution in the upper chamber of the power chamber is attached to the hydraulic cylinder, and the piston rod of the attached hydraulic cylinder is driven to extend downward, and the clamping plate is driven to approach the bar body and affix to the bar body, so as to adapt to bar bodies of different diameters, increase the contact area when clamping the bar body, improve the firmness of the clamping of the bar body, and prevent the bar body from rotating during cutting and affecting the cutting effect. When the push plate abuts against the bar body, the second hydraulic rod is stopped.

[0017] Furthermore, a plurality of elastic friction protrusions are provided on the side wall of the clamping plate close to the bar body, so as to increase the friction force between the clamping plate and the bar body.

[0018] Furthermore, the lower end surface of the top pressure plate is in a V shape with the small end facing upwards. There are two abutment points when the top pressure plate abuts against the bar body, which increases the firmness when clamping the bar body.

[0019] The beneficial effect is that when the top pressure plate presses against the upper end of the rod body, the auxiliary structure drives the clamping plate to approach the rod body and fit on the rod body, adapting to rod bodies of different diameters to increase the contact area when clamping the rod body, improve the clamping firmness of the rod body, and prevent the rod body from rotating during cutting and affecting the cutting effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0021] Figure 1 It is a structural schematic diagram of an embodiment of a bar clamping device for a circular saw machine according to the utility model;

[0022] Figure 2 It is a front view of an embodiment of the utility model;

[0023] Figure 3 A side view of an embodiment of the utility model;

[0024] Figure 4 for Figure 3 Sectional view at the middle BB;

[0025] Figure 5 for Figure 4 Sectional view at DD in the middle;

[0026] Figure 6 for Figure 3 Sectional view at CC;

[0027] Figure 7 for Figure 6 Sectional view at EE;

[0028] Figure 8 It is a front view of the top pressing assembly of the embodiment of the utility model;

[0029] Fig. 9 A schematic diagram of a top pressing assembly according to an embodiment of the utility model;

[0030] Fig.10 It is a side view of the top pressing assembly according to an embodiment of the utility model.

[0031] In the figure: 100, rod body; 200, placement plate; 300, top plate; 310, cutting gap; 400, push plate; 410, first hydraulic rod; 510, top pressure plate; 511, receiving groove; 512, clamping plate; 520, second hydraulic rod; 530, fitting hydraulic cylinder; 540, power chamber; 550, abutment plate; 560, push rod. DETAILED DESCRIPTION

[0032] The embodiments of the utility model will be described in detail below. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the utility model, and should not be construed as limiting the utility model. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in the field without making creative work are within the scope of protection of the utility model.

[0033] The features of the terms "first" and "second" in the specification and claims of the utility model may explicitly or implicitly include one or more of the features. In the description of the utility model, unless otherwise specified, the meaning of "plurality" is two or more.

[0034] In the description of the present invention, it should be understood that the terms "center", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0035] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, 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 it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0036] An embodiment of a bar clamping device for a circular saw machine according to the utility model is as follows: Figures 1 to 10As shown: a bar clamping device for a circular saw machine, comprising a placing plate 200 and a clamping mechanism; the placing plate 200 is arranged along a first direction. The first direction is a horizontal direction. A U-shaped placing groove with an opening facing upward is arranged on the upper end surface of the placing plate 200.

[0037] The clamping mechanism is arranged at the front end of the placement groove, and includes a top plate 300, a push plate 400, and a top pressing assembly. The top plate 300 and the push plate 400 are distributed in the placement groove along the second direction. The second direction is a horizontal direction. The second direction and the first direction are arranged perpendicularly. The top plate 300 is fixed on the side wall of one side of the placement groove. The push plate 400 is slidably arranged on the side wall of the other side of the placement groove along the second direction. A cutting slit 310 is provided on both the top plate 300 and the push plate 400. The push plate 400 is connected to a first hydraulic rod 410.

[0038] There are two pressing assemblies, which are distributed on both sides of the cutting gap 310. The pressing assembly includes a pressing plate 510 and an auxiliary structure. The pressing plate 510 is slidably arranged above the placement plate 200 along the bisector of the angle between the top plate 300 and the placement plate 200. When the pressing plate 510 presses the rod body 100, the pressure applied to the rod body 100 passes the axis of the rod body 100. The lower end surface of the pressing plate 510 is V-shaped with the small end facing upward. There are two abutment points when the pressing plate 510 abuts against the rod body 100, which increases the firmness when clamping the rod body 100. The upper end of the pressing plate 510 is connected to a second hydraulic rod 520.

[0039] A receiving groove 511 is provided in the middle of the top pressure plate 510 along the second direction. A circular arc-shaped clamping plate 512 is provided in the receiving groove 511. The clamping plate 512 is an elastic plate. The concave surface of the clamping plate 512 is arranged downward. Both ends of the clamping plate 512 are arranged in the receiving groove 511 to slide up and down. A plurality of elastic friction protrusions are provided on the side wall of the clamping plate 512 close to the bar body 100. They are used to increase the friction between the clamping plate 512 and the bar body 100.

[0040] The auxiliary structure is used to drive the clamping plate 512 to approach the bar body 100 and fit on the bar body 100 when the top pressure plate 510 is pressed against the upper end of the bar body 100, so as to adapt to bar bodies 100 of different diameters, increase the contact area when clamping the bar body 100, improve the firmness of the clamping of the bar body 100, and prevent the bar body 100 from rotating during cutting and affecting the cutting effect. The auxiliary structure includes a fitting hydraulic cylinder 530 and a power unit. Two fitting hydraulic cylinders 530 are symmetrically provided. The fitting hydraulic cylinder 530 is arranged in the receiving groove 511 and is above the clamping plate 512. The fitting hydraulic cylinder 530 is fixed to the groove wall of the receiving groove 511. The piston rod of the fitting hydraulic cylinder 530 is arranged up and down, and the lower end is hinged to the end of the clamping plate 512.

[0041] The power unit is used to drive the piston rod of the fitting hydraulic cylinder 530 to extend downward, drive the clamping plate 512 to approach the rod body 100 and fit on the rod body 100, adapt to rod bodies 100 of different diameters, and increase the contact area when clamping the rod body 100. The power unit includes a power chamber 540. The power chamber 540 is arranged at the center of the top pressure plate 510, and a slide plate is slidably installed in the power chamber 540. The slide plate divides the power chamber 540 into an upper chamber and a lower chamber. The upper chamber is filled with hydraulic oil. The upper chamber and the oil chamber of the fitting hydraulic cylinder 530 are connected through an oil pipe. A first spring is connected between the slide plate and the cavity wall of the power chamber 540. A push rod 560 arranged up and down is fixed to the lower end of the slide plate.

[0042] The push rod 560 is a telescopic rod of a sleeve type. A second spring is arranged inside the push rod 560. The stiffness coefficient of the second spring is greater than the stiffness coefficient of the first spring. An abutment plate 550 is fixed to the lower end of the push rod 560. When the second hydraulic rod 520 drives the top pressure plate 510 to approach the bar body 100, the abutment plate 550 first abuts against the bar body 100. As the top pressure plate 510 continues to move downward, the slide plate is driven to move upward, and the hydraulic oil silver ammonia solution in the upper chamber of the power chamber 540 is attached to the hydraulic cylinder 530, and the piston rod of the attached hydraulic cylinder 530 is driven to extend downward, and the clamping plate 512 is driven to approach the bar body 100 and attach to the bar body 100, so as to adapt to bar bodies 100 of different diameters, so as to increase the contact area when clamping the bar body 100, improve the firmness of the clamping of the bar body 100, and prevent the bar body 100 from rotating during cutting and affecting the cutting effect. When the pressing plate 510 contacts the bar body 100 , the second hydraulic rod 520 stops.

[0043] In combination with the above embodiments, the use principle and working process of the utility model are as follows: start the first hydraulic rod 410, drive the push plate 400 to push the rod body 100 to abut against the top plate 300, and then start the second hydraulic rod 520. During the process of the second hydraulic rod 520 driving the top pressure plate 510 to approach the rod body 100, the abutment plate 550 first abuts against the rod body 100. As the top pressure plate 510 continues to move downward, the slide plate is driven to move upward, and the hydraulic oil silver ammonia solution in the upper chamber of the power chamber 540 is attached to the hydraulic cylinder 530, driving the piston rod of the attached hydraulic cylinder 530 to extend downward, driving the clamping plate 512 to approach the rod body 100 and abut on the rod body 100, adapting to rod bodies 100 of different diameters, so as to increase the contact area when clamping the rod body 100, improve the clamping firmness of the rod body 100, and prevent the rod body 100 from rotating during cutting and affecting the cutting effect. When the pressing plate 510 contacts the bar body 100 , the second hydraulic rod 520 stops.

[0044] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A bar clamping device for a circular saw machine, characterized in that: It includes a placement plate and a clamping mechanism; The placement plate is arranged along a first direction; the first direction is a horizontal direction; a U-shaped placement groove with an opening facing upward is arranged on the upper end surface of the placement plate; The clamping mechanism is arranged at the front end of the placement slot, and includes a top plate, a push plate, and a top pressing assembly; the top plate and the push plate are distributed in the placement slot along the second direction; the second direction is a horizontal direction; the second direction and the first direction are arranged vertically; the top plate is fixed on the side wall on one side of the placement slot; the push plate is slidably arranged on the side wall on the other side of the placement slot along the second direction; cutting gaps are arranged on both the top plate and the push plate; There are two top pressing assemblies, which are distributed on both sides of the cutting gap; the top pressing assembly includes a top pressing plate and an auxiliary structure; the top pressing plate is slidably arranged above the placement plate along the bisector of the angle between the top plate and the placement plate; A receiving groove is provided in the middle of the top pressure plate along the second direction; a circular arc-shaped clamping plate is provided in the receiving groove; the clamping plate is an elastic plate; the concave surface of the clamping plate is arranged downward; and both ends of the clamping plate are slidably arranged in the receiving groove. The auxiliary structure is used to drive the clamping plate to approach the bar body and fit on the bar body when the top pressure plate is pressed against the upper end of the bar body, so as to adapt to bar bodies with different diameters.

2. A bar clamping device for a circular saw machine according to claim 1, characterized in that: The push plate is connected with a first hydraulic rod; the upper end of the top pressure plate is connected with a second hydraulic rod.

3. A bar clamping device for a circular saw machine according to claim 2, characterized in that: The auxiliary structure includes a fitting hydraulic cylinder and a power unit; Two fitting hydraulic cylinders are symmetrically arranged; the fitting hydraulic cylinders are arranged in the receiving groove and are located above the clamping plate; the fitting hydraulic cylinders are fixed on the groove wall of the receiving groove; the piston rods of the fitting hydraulic cylinders are arranged up and down, and the lower ends are hinged to the end of the clamping plate; The power unit is used to drive the piston rod of the hydraulic cylinder to extend downward.

4. A bar clamping device for a circular saw machine according to claim 3, characterized in that: The power unit comprises a power chamber; the power chamber is arranged at the center of the top pressure plate, a slide plate is slidably installed in the power chamber; the slide plate divides the power chamber into an upper chamber and a lower chamber; the upper chamber is filled with hydraulic oil; the upper chamber and the oil chamber of the hydraulic cylinder are connected through an oil pipe; a first spring is connected between the slide plate and the cavity wall of the power chamber; a push rod arranged up and down is fixed at the lower end of the slide plate; The push rod is a sleeve-type telescopic rod; a second spring is arranged inside the push rod; the stiffness coefficient of the second spring is greater than the stiffness coefficient of the first spring; and an abutment plate is fixed at the lower end of the push rod.

5. A bar clamping device for a circular saw machine according to claim 4, characterized in that: A plurality of elastic friction protrusions are arranged on the side wall of the clamping plate close to the bar body.

6. A bar clamping device for a circular saw machine according to claim 5, characterized in that: The lower end surface of the top pressure plate is in a V shape with the small end facing upward.

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