Clamping device for gantry machining center

Abstract

The clamping device for the gantry machining center comprises a main body frame and a pulling plate, hanging buckles are fixedly connected to the two ends of the top of the main body frame, hinge seats are fixedly connected to the two sides of the top of the main body frame, first internal threaded holes are formed in the two ends of a supporting plate, and a bearing sleeve is fixedly connected to one side of the pulling plate. The auxiliary clamping structure is arranged, the guide grooves are formed in one side of the supporting plate, and the clamping strips are inserted into the guide grooves in a sliding mode, so that when the supporting plate clamps an object, the clamping strips make direct contact with the object, after the clamping strips are abraded, bolts in the blocking pieces can be taken down, and the clamping strips are pulled out to be replaced; and then the replaced clamping strip is inserted into the guide groove, and when the blocking piece is blocked at one end of the clamping strip, fastening pieces such as bolts are used for being in threaded connection with the first inner threaded hole and the second inner threaded hole in sequence, and the clamping effect of the device is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of accessories for gantry machining centers, and particularly relates to a clamping device for a gantry machining center. Background Art

[0002] As a device for multi-directional numerical control machining in a local space, the overall structure of a gantry machining center consists of structures such as a crossbeam and columns. Driven by a motor, it can move in multiple directions, enabling it to drive a corresponding fixture to move parts or objects. To make the movement of parts or objects more stable, a corresponding clamping device is often installed in the gantry machining center;

[0003] For this reason, the patent specification with the publication number CN216178422U discloses a clamping device for a gantry machining center, which solves the technical problem that the current clamping device uses motors to clamp an object from both sides, resulting in the clamping device occupying more space in the lateral space. It includes a body, a first through hole is opened at the bottom of the body, a rotating column is fixedly connected inside the body, a rotating rod is rotatably connected to the outer surface of the rotating column, one end of the rotating rod passes through the first through hole and extends to the outside of the body, a second through hole is opened at the bottom of the body, a movable rod is arranged inside the second through hole, a top plate is fixedly connected to the top of the movable rod, the top plate is located inside the body, and the upper surface of the top plate is in contact with the other end of the rotating rod; the utility model has the effect of pushing the rotating rod upward, enabling the rotating rod to rotate, and further enabling the clamping plate to clamp an object. The above clamping device for a gantry machining center has a relatively firm clamping effect during use, but there are still some problems:

[0004] When the above clamping device for a gantry machining center is in use, in order to prevent the clamped object from slipping, a rod-shaped clamping block is required, and the long-term use of the clamping block is prone to wear, and it is often inconvenient to maintain and replace. Summary of the Utility Model

[0005] The purpose of the utility model is to provide a clamping device for a gantry machining center, so as to solve the defect that the clamping block of the existing clamping device for a gantry machining center is not easy to replace or maintain due to wear.

[0006] To solve the above technical problems, the present utility model provides the following technical solutions: A clamping device for a gantry machining center, comprising a main body frame and a pull plate. At both ends of the top of the main body frame, hanging hooks are fixedly connected. On both sides of the top of the main body frame, hinge seats are fixedly connected. At the top end inside the hanging hook, a linkage structure is provided. On both sides inside the main body frame, pull plates are provided. At both sides of the bottom end of the main body frame, limiting grooves are opened. On both sides at one end inside the main body frame, inserting rods are fixedly connected. On one side of the hinge seat, a hydraulic rod is hinged. At the bottom end of the pull plate, a support plate is fixedly connected. On one side of the support plate, an auxiliary clamping structure is provided. The auxiliary clamping structure includes a first internal thread hole, a guiding groove, a clamping strip, a second internal thread hole, and a retaining piece. The first internal thread hole is opened inside both ends of the support plate. On one side of the pull plate, a bearing sleeve is fixedly connected.

[0007] During use, install this clamping device inside the gantry machining center and connect it to the hanging hook through a chain, a connecting rod, etc., so that the gantry machining center can drive this clamping device to move in multiple directions. When it is necessary to use this clamping device to clamp an object, control the gantry machining center to drive this clamping device to move above the object to be clamped, and make the support plate located on both sides of the object to be clamped. Then start the hydraulic rod to extend its top, and under the double hinges of the hinge seat and the hydraulic rod and the hydraulic rod and the top seat, push the transmission rod upward, and thus make the two support plates squeeze and clamp the object inside them, and drive the object to move under the control of the gantry machining center.

[0008] Preferably, the linkage structure includes a sliding sleeve, a transmission rod, a top seat, a sliding groove, a connecting frame, and a guiding roller. The sliding sleeve is fixedly connected to the middle position at the top of the main body frame. The transmission rod passes through the inside of the sliding sleeve. At the top end of the transmission rod, a top seat is fixedly connected. Above the inside of the pull plate, a sliding groove is opened. At the bottom end of the transmission rod, a connecting frame is fixedly connected. Inside both sides of the connecting frame, guiding rollers are rotatably connected. Since the flipping of the two pull plates is caused by the movement of the guiding rollers in their respective sliding grooves, the clamping force and the clamping distance of the two support plates are the same.

[0009] Preferably, the sliding sleeve and the transmission rod are in a sliding structure, and the transmission rod and the connecting frame are perpendicular to each other.

[0010] Preferably, the top seat and the hydraulic rod are in a hinged structure, and the connecting frame and the guiding roller are in a rotating structure, so that the pull plate can be flipped.

[0011] Preferably, a guiding groove is formed inside one side of the support plate. A clamping strip is wrapped inside the guiding groove. Second internal threaded holes are formed at both ends of the clamping strip. A retaining piece is installed outside the second internal threaded holes. Insert the replaced clamping strip into the guiding groove. When the retaining piece blocks one end of the clamping strip, use fasteners such as bolts to threadedly connect with the first internal threaded hole and the second internal threaded hole in sequence.

[0012] Preferably, a plurality of first internal threaded holes are formed at both ends of the support plate, and the plurality of first internal threaded holes are equally spaced at both ends of the support plate, so that the plurality of clamping strips can be disassembled and assembled.

[0013] Preferably, the guiding groove and the clamping strip are of a sliding structure, and the first internal threaded hole and the second internal threaded hole are on the same horizontal plane.

[0014] The clamping device for a gantry machining center provided by the present utility model has the following advantages: By providing an auxiliary clamping structure, a plurality of guiding grooves are formed on one side of the support plate, and the clamping strips are slidably inserted into the guiding grooves, so that when the support plate clamps an object, the clamping strips are in direct contact with the object. When the clamping strips are worn, the bolts inside the retaining piece can be removed, and the clamping strips can be pulled out for replacement. Then, insert the replaced clamping strips into the guiding grooves. When the retaining piece blocks one end of the clamping strip, use fasteners such as bolts to threadedly connect with the first internal threaded hole and the second internal threaded hole in sequence, achieving an improvement in the clamping effect of the device.

[0015] By providing a linkage structure, when the clamping device is in use, the support plate is driven by the pull plate to flip towards the clamped object for clamping. Since the flipping of the two pull plates is caused by the movement of the guide rollers in their respective chutes, the clamping forces and clamping distances of the two support plates are the same, making the clamped object more stable, achieving an improvement in the stability of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 is a three-dimensional sectional structure schematic diagram of the present utility model;

[0017] Figure 2 is a three-dimensional partial sectional structure schematic diagram of the present utility model;

[0018] Figure 3 is a three-dimensional structure schematic diagram of the linkage structure of the present utility model;

[0019] Figure 4 is a three-dimensional disassembled structure schematic diagram of the linkage structure of the present utility model;

[0020] Figure 5 is of the present utility model Figure 3 partial sectional enlarged structure schematic diagram at A in.

[0021] In the figure: 1, main body frame; 2, hanging buckle; 3, hinge seat; 4, hydraulic rod; 5, linkage structure; 501, sliding sleeve; 502, transmission rod; 503, top seat; 504, chute; 505, connecting frame; 506, guide roller; 6, pull plate; 7, limit groove; 8, support plate; 9, auxiliary clamping structure; 901, first internal thread hole; 902, guide groove; 903, clamping strip; 904, second internal thread hole; 905, retaining piece; 10, insertion rod; 11, bearing sleeve. Specific implementation mode

[0022] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0023] Please refer to Figures 1 - 5 A clamping device for a gantry machining center provided by the present invention includes a main body frame 1 and a pull plate 6. Hanging buckles 2 are fixedly connected to both ends of the top of the main body frame 1. Hinge seats 3 are fixedly connected to both sides of the top of the main body frame 1. Pull plates 6 are arranged on both sides inside the main body frame 1. Limit grooves 7 are opened on both sides of the bottom end of the main body frame 1. Insertion rods 10 are fixedly connected to both sides of one end inside the main body frame 1. A hydraulic rod 4 is hinged to one side of the hinge seat 3. A support plate 8 is fixedly connected to the bottom end of the pull plate 6. A bearing sleeve 11 is fixedly connected to one side of the pull plate 6. An auxiliary clamping structure 9 is arranged on one side of the support plate 8. The auxiliary clamping structure 9 includes a first internal thread hole 901, a guide groove 902, a clamping strip 903, a second internal thread hole 904 and a retaining piece 905. The first internal thread hole 901 is opened inside both ends of the support plate 8. A guide groove 902 is opened inside one side of the support plate 8. The clamping strip 903 is wrapped inside the guide groove 902. Second internal thread holes 904 are opened at both ends of the clamping strip 903. Retaining pieces 905 are installed outside the second internal thread holes 904. A plurality of first internal thread holes 901 are opened at both ends of the support plate 8, and the plurality of first internal thread holes 901 are equally spaced at both ends of the support plate 8. The guide groove 902 and the clamping strip 903 are in a sliding structure. The first internal thread hole 901 and the second internal thread hole 904 are on the same horizontal plane.

[0024] Refer to the attached Figure 1 、 Figure 3 and Figure 5, the clamping device is installed inside a gantry machining center and connected to the hanging buckle 2 through chains, connecting rods, etc., enabling the gantry machining center to drive the clamping device to move in multiple directions. When the clamping device is required to clamp an object, the gantry machining center is controlled to drive the clamping device to move above the object to be clamped, and the support plates 8 are located on both sides of the object to be clamped. Subsequently, the hydraulic rod 4 is activated to extend its top, and under the double hinge connection between the hinge seat 3 and the hydraulic rod 4 and between the hydraulic rod 4 and the top seat 503, the transmission rod 502 is pushed upward, thereby enabling the two support plates 8 to squeeze and clamp the object inside them, and driving the object to move under the control of the gantry machining center. When the clamping device is used for a long time, the support plates 8 are in long-term contact and friction with the object to be clamped, causing certain wear on their surfaces and reducing the friction force between them and the object to be clamped, thus gradually reducing the clamping effect of the clamping device. Therefore, a number of guiding grooves 902 are opened on one side of the support plate 8, and clamping strips 903 are slidably inserted into the guiding grooves 902, so that when the support plate 8 clamps an object, the clamping strips 903 are in direct contact with the object. When the clamping strips 903 are worn, the bolts inside the retaining plate 905 can be removed, and the clamping strips 903 can be pulled out for replacement. Subsequently, the replaced clamping strips 903 are inserted into the guiding grooves 902, and when the retaining plate 905 blocks one end of the clamping strips 903, bolts and other fasteners are sequentially threadedly connected to the first internal threaded hole 901 and the second internal threaded hole 904.

[0025] A linkage structure 5 is provided at the top end inside the hanging buckle 2. The linkage structure 5 includes a sliding sleeve 501, a transmission rod 502, a top seat 503, a sliding groove 504, a connecting frame 505, and a guiding roller 506. The sliding sleeve 501 is fixedly connected to the middle position at the top end of the main body frame 1. The transmission rod 502 passes through the inside of the sliding sleeve 501. The top end of the transmission rod 502 is fixedly connected to the top seat 503. A sliding groove 504 is opened above the inside of the pulling plate 6. The bottom end of the transmission rod 502 is fixedly connected to the connecting frame 505. Guiding rollers 506 are rotatably connected to the inside of both sides of the connecting frame 505. The sliding sleeve 501 and the transmission rod 502 are in a sliding structure. The transmission rod 502 and the connecting frame 505 are perpendicular to each other. The top seat 503 and the hydraulic rod 4 are in a hinge structure. The connecting frame 505 and the guiding roller 506 are in a rotating structure.

[0026] Refer to the appendix Figure 1 、 Figure 2 、 Figure 3 and Figure 4, activate the hydraulic rod 4 to extend its top, and under the double hinge of the hinge seat 3 and the hydraulic rod 4 as well as the hydraulic rod 4 and the top seat 503, push the transmission rod 502 upward, and thereby drive the connecting frame 505 to make the guide roller 506 roll along the inside of the chute 504. Since the bearing sleeve 11 on the back of the pull plate 6 and the insertion rod 10 are in a rotating structure, when the connecting frame 505 moves upward, the pull plate 6 will rotate at an angle with the bearing sleeve 11 as the center, and thus the two support plates 8 will squeeze and clamp the object inside them, and drive the object to move under the control of the gantry machining center. During this process, since the rotation of the two pull plates 6 is caused by the movement of the guide roller 506 in their respective chutes 504, the clamping force and clamping distance of the two support plates 8 are the same, making the clamped object more stable.

[0027] Although the present utility model has been described in detail with reference to the foregoing embodiments, for those skilled in the art, they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A clamping device for a gantry machining center, comprising a main frame (1) and a pull plate (6); Features: Both ends of the top of the main frame (1) are fixedly connected with hooks (2), both sides of the top of the main frame (1) are fixedly connected with hinge seats (3), the top of the inside of the hook (2) is provided with a linkage structure (5), both sides of the inside of the main frame (1) are provided with pull plates (6), both sides of the bottom of the main frame (1) are provided with limiting grooves (7), and both sides of one end of the inside of the main frame (1) are fixedly connected with insertion rods (10); A hydraulic rod (4) is hingedly connected to one side of the hinged seat (3); The bottom end of the pull plate (6) is fixedly connected to a support plate (8), and an auxiliary clamping structure (9) is provided on one side of the support plate (8). The auxiliary clamping structure (9) wraps the first internal threaded hole (901), the guide groove (902), the clamping strip (903), the second internal threaded hole (904) and the blocking plate (905). The first internal threaded hole (901) is provided inside the two ends of the support plate (8), and a bearing sleeve (11) is fixedly connected to one side of the pull plate (6).

2. A clamping device for a gantry machining center according to claim 1, characterized in that: The linkage structure (5) comprises a sliding sleeve (501), a transmission rod (502), a top seat (503), a sliding groove (504), a connecting frame (505) and a guide roller (506); the sliding sleeve (501) is fixedly connected to the middle position of the top end of the main frame (1); the interior of the sliding sleeve (501) is penetrated by the transmission rod (502); the top end of the transmission rod (502) is fixedly connected to the top seat (503); a sliding groove (504) is provided at the top of the interior of the pull plate (6); the bottom end of the transmission rod (502) is fixedly connected to the connecting frame (505); and the interiors of both sides of the connecting frame (505) are rotatably connected to guide rollers (506).

3. The clamping device for a gantry machining center according to claim 2, characterized in that: The sliding sleeve (501) and the transmission rod (502) are in a sliding structure, and the transmission rod (502) and the connecting frame (505) are perpendicular to each other.

4. The clamping device for a gantry machining center according to claim 2, characterized in that: The top seat (503) and the hydraulic rod (4) are in an articulated structure, and the connecting frame (505) and the guide roller (506) are in a rotating structure.

5. The clamping device for a gantry machining center according to claim 1, characterized in that: A guide groove (902) is provided inside one side of the support plate (8), a clamping strip (903) is wrapped inside the guide groove (902), second internal threaded holes (904) are provided at both ends of the clamping strip (903), and a blocking piece (905) is installed on the outside of the second internal threaded hole (904).

6. The clamping device for a gantry machining center according to claim 5, characterized in that: A plurality of the first internal threaded holes (901) are provided at both ends of the support plate (8), and the plurality of the first internal threaded holes (901) are distributed at equal intervals at both ends of the support plate (8).

7. The clamping device for a gantry machining center according to claim 5, characterized in that: The guide groove (902) and the clamping strip (903) are in a sliding structure, and the first internal thread hole (901) and the second internal thread hole (904) are located in the same horizontal plane.

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