Clamping device

Abstract

The utility model relates to a clamping device which comprises a machine frame, a clamping disc and a driving mechanism for driving the clamping disc to rotate, a plurality of guide grooves are evenly formed in the machine frame around a through hole of the clamping disc, a plurality of inclined arc-shaped grooves and clamping pieces located in the inclined arc-shaped grooves are correspondingly arranged on the clamping disc, the end portions of the clamping pieces are located in the guide grooves, and the clamping pieces are located in the guide grooves. The clamping device is characterized in that the driving mechanism comprises a pneumatic pressure cylinder and a sliding block, an output shaft of the pneumatic pressure cylinder is connected with the sliding block, the clamping disc is provided with a connecting piece, the connecting piece is in linkage fit with the sliding block, the sliding block slides under the action of the pneumatic pressure cylinder, and the pneumatic pressure cylinder is connected with the sliding block. The connecting piece slides along with the sliding block so as to drive the clamping disc to rotate. By the adoption of the technical scheme, the clamping device is provided with the pneumatic pressure cylinder to drive the clamping disc to rotate automatically, and operation is more convenient.

Description

Technical Field

[0001] The utility model relates to the technical field of cutting and chamfering machines, in particular to a clamping device. Background Art

[0002] A common saw blade type CNC cutting and chamfering machine includes a pipe clamping disk and a rotating disk, a rotating device is arranged between the clamping disk and the rotating disk, a cutting knife or a chamfering knife is arranged on the rotating disk, and the rotating disk rotates to drive the cutting knife or the chamfering knife to cut or chamfer the pipe.

[0003] There is a Chinese utility model patent with authorization announcement number CN202667800U, which discloses a saw blade type CNC cutting and chamfering machine, including a frame, a cutting and chamfering device, a pipe clamping disk and a rotating disk, a rotating device is provided between the frame and the rotating disk, and the rotating device includes a motor, an output gear and a gear disk, the gear disk is fixedly arranged on the rotating disk or is integrally arranged with the rotating disk, the motor output shaft is linked with the output gear, the output gear is meshed with the gear disk, the clamping disk and the frame are rotated, and a cutting The chamfering device is mounted on a frame, one side of the mounting frame is hinged to the rotating disk, and a long through hole is provided on the other side. A limit pin is fixedly provided on the rotating disk, and the limit pin is passed through the long through hole to limit the mounting frame from being separated from the rotating disk. The cooperation between the limit pin and the long through hole constitutes the mounting frame swinging up and down adjacent to the rotating disk. A mounting frame locking mechanism is provided at the position of the rotating disk at the limit pin. The cutting and chamfering device includes a motor, a transmission assembly and a blade mounting frame. The motor is fixed on the mounting frame, and the transmission assembly is fixed on the mounting frame through a bearing, and the motor output shaft cooperates with the transmission assembly.

[0004] The rotation of the clamping disc in the above patent is achieved by manually driving the rotating rod to rotate. The moving block moves on the rotating rod, driving the protrusion on the clamping disc to move synchronously, thereby driving the clamping disc to rotate, thereby achieving the clamping or loosening of the pipe fitting by the clamping column. The operation is very inconvenient, time-consuming and labor-intensive. Summary of the invention

[0005] Purpose of the utility model: In order to overcome the defects of the prior art, the utility model provides a clamping device, which is provided with a pneumatic booster cylinder to drive the clamping disk to rotate automatically, so that the operation is more convenient.

[0006] The technical solution of the utility model is as follows: a clamping device comprises a frame, a clamping disk and a driving mechanism for driving the clamping disk to rotate, a plurality of guide grooves are evenly arranged on the frame around the through hole of the clamping disk, a plurality of oblique arc grooves and clamping members located in the oblique arc grooves are correspondingly arranged on the clamping disk, an end portion of each clamping member is located in the guide groove, and the clamping member slides in the guide groove when the clamping disk rotates, the driving mechanism comprises a pneumatic booster cylinder and a sliding block, the output shaft of the pneumatic booster cylinder is connected to the sliding block, a connecting member is provided on the clamping disk, the connecting member cooperates with the sliding block, the sliding block slides under the action of the pneumatic booster cylinder, and the connecting member slides with the sliding block to drive the clamping disk to rotate.

[0007] By adopting the above technical solution, a pneumatic booster cylinder is set up to push the sliding block to move, thereby driving the clamping plate to rotate. Since an oblique arc groove is provided on the clamping plate, the rotation of the clamping plate drives the clamping piece to slide in the guide groove to achieve the clamping or loosening of the pipe. The setting of the pneumatic booster cylinder makes it more convenient to operate the rotation of the clamping plate, and it has greater force than traditional oil cylinders and air cylinders, and can better drive the sliding of the sliding block.

[0008] The utility model is further configured as follows: a connecting groove is provided on one side of the sliding block close to the clamping disk, the bottom of the connecting groove is open, and the connecting piece is located in the connecting groove, so that the sliding block slides and drives the clamping disk to rotate.

[0009] With the above further arrangement, during installation, the sliding block can be slid in from top to bottom so that the connecting piece is clamped in the connecting groove. The structure is simple, the installation is convenient, and the structure is stable, so that the connecting piece can be driven to slide when the sliding block slides.

[0010] The utility model is further configured as follows: a guide seat and a shaft rod located on the guide seat are provided on the frame, the shaft rod extends toward the pneumatic booster cylinder, and the sliding block is sleeved outside the shaft rod and slidingly cooperates with the shaft rod.

[0011] By adopting the above further arrangement, the structure of the sliding block is more stable and does not deviate when sliding.

[0012] The utility model is further configured as follows: the driving mechanism also includes an outer cover and a fixed seat, the fixed seat is located at the end of the pneumatic booster cylinder, the output shaft of the pneumatic booster cylinder passes through the fixed seat and is connected to the sliding block, the outer cover is arranged on the outside of the shaft, and the two ends of the outer cover are respectively connected to the guide seat and the fixed seat.

[0013] With the above further configuration, the shaft rod and the sliding block are shielded by the outer cover so that they are not exposed and are more beautiful, and other objects are prevented from entering and affecting the sliding of the sliding block.

[0014] The utility model is further configured as follows: the frame includes a seat body and a baffle plate which are separately arranged; the seat body is provided with the guide groove and the annular boss; the clamping disk is rotatably sleeved on the annular boss; a positioning notch which communicates with the guide groove is formed on the annular boss; the baffle plate is located outside the annular boss; a positioning block is provided on the baffle plate; and the positioning block is located in the positioning notch.

[0015] By further configuring the above, the clamping disc is positioned by a baffle to prevent it from being separated from the seat body when rotating, and the structure is more stable. The split configuration facilitates the disassembly and assembly of the clamping member.

[0016] The utility model is further configured that a pin is provided on the portion of the clamping member located in the guide groove, and the pin is located in the oblique arc groove, so as to drive the clamping member to slide in the guide groove when the clamping disc rotates.

[0017] By adopting the above-mentioned further arrangement, the structure is simple and the operation is convenient. When the clamping disk rotates, the side wall of the arc groove presses the pin shaft to drive the clamping member to slide in the guide groove. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a structural schematic diagram of a specific embodiment of the utility model;

[0019] Figure 2 It is a schematic diagram of the interior of the outer cover of a specific embodiment of the utility model;

[0020] Figure 3 It is a schematic diagram of a clamping disc of a specific embodiment of the utility model;

[0021] Figure 4 It is a schematic diagram of a driving mechanism of a specific embodiment of the utility model;

[0022] Figure 5 It is a schematic diagram of a frame of a specific embodiment of the utility model;

[0023] Figure 6 It is a schematic diagram of a seat body of a specific embodiment of the utility model;

[0024] Figure 7 It is a schematic diagram of a baffle according to a specific embodiment of the utility model.

[0025] In the figure, 1, frame; 11, guide groove; 12, guide seat; 13, shaft; 14, seat body; 141, annular boss; 1411, positioning notch; 15, baffle; 151, positioning block; 2, clamping plate; 20, through hole; 21, oblique arc groove; 22, clamping member; 221, pin shaft; 23, connecting member; 3, driving mechanism; 31, pneumatic booster cylinder; 32, sliding block; 321, connecting groove; 33, outer cover; 34, fixed seat. DETAILED DESCRIPTION

[0026] The technical scheme in this embodiment will be described clearly and completely below in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of them. 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.

[0027] It should be noted that in the description of the present utility model, all directional indications (such as up, down, front, back, etc.) are only used to explain the relative position relationship, movement status, etc. between the components in a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0028] In addition, the descriptions of "first", "second", etc. in the present invention are only for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of the indicated technical features. In the description of the present invention, the meaning of "several" is at least two, such as two, three, etc., unless otherwise clearly and specifically limited.

[0029] In addition, the technical solutions between the various embodiments of the present invention can be combined with each other, but it must be based on the fact that technical personnel in this field can implement it. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

[0030] like Figure 1-7As shown, a clamping device includes a frame 1, a clamping disc 2 and a driving mechanism 3 for driving the clamping disc 2 to rotate, the frame 1 is evenly provided with a plurality of guide grooves 11 around the through hole 20 of the clamping disc 2, the clamping disc 2 is correspondingly provided with a plurality of oblique arc grooves 21 and clamping members 22 located in the oblique arc grooves 21, the end of each clamping member 22 is located in the guide groove 11, and when the clamping disc 2 rotates, the clamping member 22 slides in the guide groove 11, the driving mechanism 3 includes a pneumatic booster cylinder 31 and a sliding block 32, the output shaft of the pneumatic booster cylinder 31 is connected to the sliding block 32, the clamping disc 2 is provided with a connecting member 23, and the connecting member 23 can be arranged in the form of a convex block or a connecting column The connecting piece 23 cooperates with the sliding block 32, and the sliding block 32 slides under the action of the pneumatic booster cylinder 31. The connecting piece 23 slides with the sliding block 32 to drive the clamping plate 2 to rotate. The pneumatic booster cylinder 31 can be purchased directly from the market. By setting the pneumatic booster cylinder 31, the sliding block 32 is pushed to move, thereby driving the clamping plate 2 to rotate. Since the clamping plate 2 is provided with an oblique arc groove 21, the rotation of the clamping plate 2 drives the clamping piece 22 to slide in the guide groove 11 to achieve clamping or loosening of the pipe. The setting of the pneumatic booster cylinder 31 is more convenient for operating the rotation of the clamping plate 2, and it has greater force than traditional oil cylinders and air cylinders, and can better drive the sliding of the sliding block 32.

[0031] The sliding block 32 is provided with a connecting groove 321 on one side close to the clamping disk 2, and the bottom of the connecting groove 321 is opened. The connecting piece 23 is located in the connecting groove 321, so that the sliding block 32 can slide and drive the clamping disk 2 to rotate. The connecting piece 23 can also be connected with the sliding block 32 by screws or other means to achieve linkage cooperation. During installation, the sliding block 32 can be slid in from top to bottom so that the connecting piece 23 is clamped in the connecting groove 321. The structure is simple, easy to install, and stable, which is convenient for the sliding block 32 to drive the connecting piece 23 to slide when it slides.

[0032] The frame 1 is provided with a guide seat 12 and a shaft rod 13 located on the guide seat 12, and the shaft rod 13 extends in the direction of the pneumatic booster cylinder 31. The sliding block 32 is sleeved outside the shaft rod 13 and slides with the shaft rod 13, so that the structure of the sliding block 32 is more stable and does not deviate when sliding. The driving mechanism 3 also includes an outer cover 33 and a fixed seat 34, and the fixed seat 34 is located at the end of the pneumatic booster cylinder 31. The output shaft of the pneumatic booster cylinder 31 passes through the fixed seat 34 and is connected to the sliding block 32. The outer cover 33 is arranged on the outside of the shaft rod 13, and the two ends of the outer cover 33 are respectively connected to the guide seat 12 and the fixed seat 34. The shaft rod 13 and the sliding block 32 are shielded by the outer cover 33 so that they are not exposed, which is more beautiful, and at the same time, other objects are prevented from entering and affecting the sliding of the sliding block 32.

[0033] The frame 1 includes a seat body 14 and a baffle 15 which are separately arranged. The baffle 15 is connected to the seat body 14 by a plurality of screws. The seat body 14 is provided with the guide groove 11 and the annular boss 141. The clamping disc 2 is rotatably sleeved on the annular boss 141. The annular boss 141 is provided with a positioning notch 1411 which communicates with the guide groove 11. The baffle 15 is located outside the annular boss 141, and a positioning block 151 is provided on the baffle 15. The positioning block 151 is located in the positioning notch 1411. The positioning block 151 can be used to clamp the clamping member 2. 2 is positioned to prevent it from being separated from the guide groove 11, and the clamping disc 2 is positioned by the baffle 15 to prevent it from being separated from the seat body 14 when rotating. The structure is more stable, and the split arrangement is convenient for the disassembly and assembly of the clamping member 22. A pin 221 is provided on the part of the clamping member 22 located in the guide groove 11, and the pin 221 is located in the oblique arc groove 21, so as to drive the clamping member 22 to slide in the guide groove 11 when the clamping disc 2 rotates. The structure is simple and the operation is convenient. When the clamping disc 2 rotates, the side wall of the arc groove presses the pin 221 to drive the clamping member 22 to slide in the guide groove 11.

Claims

1. A clamping device, comprising a frame (1), a clamping disc (2) and a driving mechanism (3) for driving the clamping disc (2) to rotate, wherein a plurality of guide grooves (11) are evenly arranged on the frame (1) around the through hole of the clamping disc (2), the clamping disc (2) is correspondingly provided with a plurality of oblique arc grooves (21) and clamping members (22) located in the oblique arc grooves (21), the end of each clamping member (22) is located in the guide groove (11), and when the clamping disc (2) rotates, the clamping member (22) slides in the guide groove (11), characterized in that: The driving mechanism (3) comprises a pneumatic booster cylinder (31) and a sliding block (32), wherein the output shaft of the pneumatic booster cylinder (31) is connected to the sliding block (32), and a connecting piece (23) is provided on the clamping disk (2), wherein the connecting piece (23) and the sliding block (32) are linked to each other, and the sliding block (32) slides under the action of the pneumatic booster cylinder (31), and the connecting piece (23) slides along with the sliding block (32), thereby driving the clamping disk (2) to rotate.

2. The clamping device according to claim 1, characterized in that A connecting groove (321) is provided on one side of the sliding block (32) close to the clamping disk (2); the bottom of the connecting groove (321) is open, and the connecting member (23) is located in the connecting groove (321), so that the sliding block (32) can slide and drive the clamping disk (2) to rotate.

3. The clamping device according to claim 1 or 2, characterized in that: The frame (1) is provided with a guide seat (12) and a shaft (13) located on the guide seat (12); the shaft (13) extends in the direction of the pneumatic booster cylinder (31); and the sliding block (32) is sleeved outside the shaft (13) and is slidably matched with the shaft (13).

4. The clamping device according to claim 3, characterized in that: The driving mechanism (3) further comprises an outer cover (33) and a fixed seat (34), wherein the fixed seat (34) is located at the end of the pneumatic booster cylinder (31), and the output shaft of the pneumatic booster cylinder (31) passes through the fixed seat (34) and is connected to the sliding block (32), the outer cover (33) is arranged on the outside of the shaft (13), and the two ends of the outer cover (33) are respectively connected to the guide seat (12) and the fixed seat (34).

5. The clamping device according to claim 1 or 2, characterized in that: The frame (1) comprises a seat body (14) and a baffle (15) which are separately arranged; the seat body (14) is provided with the guide groove (11) and the annular boss (141); the clamping disc (2) is rotatably sleeved on the annular boss (141); the annular boss (141) is provided with a positioning notch (1411) which communicates with the guide groove (11); the baffle (15) is located outside the annular boss (141); and a positioning block (151) is provided on the baffle (15); the positioning block (151) is located in the positioning notch (1411).

6. The clamping device according to claim 5, characterized in that A pin shaft (221) is provided on the portion of the clamping member (22) located in the guide groove (11); the pin shaft (221) is located in the oblique arc groove (21) so as to drive the clamping member (22) to slide in the guide groove (11) when the clamping disc (2) rotates.

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