A pneumatic clamp for positioning

Abstract

The utility model relates to the technical field of pneumatic clamps, and specifically to a pneumatic clamp for positioning, comprising a cylinder, a limiting sleeve is installed on one side of the cylinder, an output groove is opened inside the limiting sleeve at one end close to the cylinder, an extension groove is opened inside the limiting sleeve at one end away from the cylinder, the output end of the cylinder is slidably connected to the output groove, a connecting rod is installed on the output end of the cylinder, the connecting rod and the extension groove are slidably connected, a fixed frame is installed on one end of the connecting rod, the fixed frame and the extension groove are slidably connected, the inner side of the fixed frame is rotatably connected to a rotating rod, the outer side of the rotating rod is provided with a mounting seat, and one side of the mounting seat is clamped with a pressure clamp through a mounting mechanism; the utility model is convenient for cutting parts by laser cutting, and at the same time, the space occupied by the components is not large, and the pressure clamp of corresponding size and shape can be replaced according to the shape of the corresponding workpiece, thereby ensuring the processing effect.

Description

Technical Field

[0001] The utility model relates to the technical field of pneumatic clamps, in particular to a pneumatic clamp used for positioning. Background Art

[0002] Hot stamping forming technology: Hot stamping forming is referred to as hot forming. The hot forming steel plate (tensile strength of about 550MPa) is heated to above 900℃ in a heating furnace. The metallographic structure of the steel plate is transformed into austenite under high temperature. After the steel plate is heated and taken out of the furnace, it is stamped at high temperature through a hot forming mold with a water cooling system. After forming, the mold is quickly cooled to below 100℃. The high-temperature austenite structure is transformed into martensite, which increases the tensile strength of the parts to more than 1300MPa. Due to the high strength of the parts, the parts after hot forming need to be cut by laser The process is used to cut, trim and cut holes. When the thermoformed parts are laser cut, the thermoformed parts need to be positioned on the cutting bracket by a pneumatic clamp. There are two main types of existing positioning clamps, one is a lever type clamp and the other is a rotary clamp. The lever type clamp takes up a large space and has a relatively small clamping force. The rotary clamp rotates in the horizontal plane and is easy to interfere with the parts during work. It is suitable for relatively flat parts but cannot be used for parts with more complex shapes. Therefore, it is urgent to design a pneumatic clamp for positioning to solve the above problems. Utility Model Content

[0003] The purpose of the utility model is to provide a pneumatic clamp for positioning to solve the problems raised in the above background technology.

[0004] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0005] A pneumatic clamp for positioning comprises a cylinder, a limit sleeve is installed on one side of the cylinder, an output groove is opened inside the limit sleeve at one end close to the cylinder, an extension groove is opened inside the limit sleeve at one end away from the cylinder, the output end of the cylinder is slidably connected to the output groove, a connecting rod is installed on the output end of the cylinder, the connecting rod and the extension groove are slidably connected, a fixed frame is installed on one end of the connecting rod, the fixed frame and the extension groove are slidably connected, the inner side of the fixed frame is rotatably connected to a rotating rod, the outer side of the rotating rod is provided with a mounting seat, and one side of the mounting seat is clamped with a pressure clamp through a mounting mechanism.

[0006] As a preferred solution of the utility model, the mounting mechanism includes a docking assembly, a locking assembly and a buckle and pull assembly, the docking assembly includes an insert plate installed on one side of the pressing clamp, a slot is provided on one side of the mounting seat, a sliding slot is provided inside the mounting seat below the slot, a sliding plate is slidably connected to the inside of the sliding slot, a card block is installed on one side of the sliding plate, a card slot is provided inside the mounting seat that runs through the inside of the insert plate, the card slot is connected to the sliding slot and the inner side of the slot, and the card block is connected to the card slot by a card engagement.

[0007] As a preferred solution of the utility model, the locking assembly includes a retaining groove opened inside the mounting seat and located on both sides of the card slot, a retaining block is slidably connected to the inner side of the retaining groove, a first spring is installed between one end of one side of the retaining block and the inner wall of the retaining groove, and the card slot is connected to the inner side of the retaining groove.

[0008] As a preferred solution of the utility model, the side section of the clamping block is T-shaped, the side surface of the abutting block is L-shaped, and the opposite ends of the two groups of abutting blocks and the clamping block are provided with inclined surfaces that fit each other.

[0009] As a preferred solution of the utility model, the buckle and pull assembly includes a pull rod installed on the other end of one side of the resistance block, a movable groove is opened inside the mounting seat on one side of the resistance groove, the pull rod and the movable groove are slidably connected, an extension groove is opened inside the mounting seat near the top, one end of the pull rod extending to the inner side of the extension groove is rotatably connected to a pull ring, a closed groove is opened on the top of the mounting seat on one side of the extension groove, a closed plate is slidably connected to the inner side of the closed groove, a limiting groove is opened on one side of the inner wall of the closed groove, and a limit block slidably connected to the limit groove is installed at one end of the closing plate.

[0010] As a preferred solution of the utility model, a push-pull groove is opened on one side of the closing plate, a push-pull plate is installed on the inner wall of the push-pull groove, a first fixing piece is embedded and installed at one end of the closing plate and the plug plate, and a second fixing piece corresponding to the first fixing piece is embedded and installed on the inner wall of the closing groove and the inner wall of the slot.

[0011] As a preferred solution of the utility model, one of the first fixing member and the second fixing member is a first magnet, and the other of the first fixing member and the second fixing member is a second magnet, and the magnetic poles of the first magnet and the second magnet are opposite and attract each other.

[0012] Compared with the prior art, the beneficial effects of the utility model are:

[0013] In the utility model, the cylinder is extended and retracted to drive the pressing clamp to move, and the part is pressed against the clamping point of the bracket, or the connecting rod is lifted, and the pressing clamp will loosen the part and move out of the upper space of the part to facilitate laser cutting of the part. At the same time, the space occupied by the component is not large, and the pressing clamp of the corresponding size and shape can be replaced according to the shape of the corresponding workpiece, thereby ensuring the processing effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0015] Figure 2 It is a partial cross-sectional structural schematic diagram of the installation mechanism of the utility model;

[0016] Figure 3 For this utility model Figure 1 A schematic diagram of the enlarged structure of part A;

[0017] Figure 4 It is a schematic diagram of the overall side sectional structure of the utility model.

[0018] In the figure: 1. cylinder; 2. limit sleeve; 3. output slot; 4. connecting rod; 5. fixed frame; 6. mounting seat; 7. pressing clamp; 8. plug plate; 9. sliding plate; 10. clamping block; 11. stop block; 12. first spring; 13. inclined plane; 14. pull rod; 15. closing plate; 16. limit slot; 17. push-pull plate; 18. second fixing member. DETAILED DESCRIPTION

[0019] The technical solutions in the embodiments of the utility model will be clearly and completely described below in conjunction with the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the utility model.

[0020] Example:

[0021] See also Figure 1-Figure 4 , the utility model provides a technical solution:

[0022] A pneumatic clamp for positioning comprises a cylinder 1, a limiting sleeve 2 is installed on one side of the cylinder 1, an output groove 3 is provided at one end of the limiting sleeve 2 close to the cylinder 1, and an extension groove is provided at one end of the limiting sleeve 2 away from the cylinder 1. The output end of the cylinder 1 is slidably connected to the output groove 3. When in use, the device can drive the pressure clamp 7 to move through the extension and contraction of the cylinder 1, press the part on the clamping point of the bracket, or lift the connecting rod 4, and the pressure clamp 7 will release the part, and move the pressure clamp 7 out of the upper space of the part so that the part can be cut by laser cutting. At the same time, the space occupied by the component is not large, and the pressure clamp 7 of corresponding size and shape can be replaced according to the shape of the corresponding workpiece, thereby ensuring the processing effect.

[0023] In this embodiment, if Figure 1 , Figure 2 and Figure 3 As shown, a connecting rod 4 is installed at the output end of the cylinder 1, and the connecting rod 4 and the extension groove are slidably connected. A fixed frame 5 is installed at one end of the connecting rod 4, and the fixed frame 5 and the extension groove are slidably connected. The inner side of the fixed frame 5 is rotatably connected to the rotating rod, and the outer side of the rotating rod is sleeved with a mounting seat 6, and one side of the mounting seat 6 is clamped with a clamp 7 through a mounting mechanism. First, when the cylinder 1 contracts, the connecting rod 4 drives the clamp 7 to move, and the clamp 7 presses the part on the clamping point of the bracket. When the cylinder 1 opens, the connecting rod 4 is lifted up, and the clamp 7 releases the part. As the cylinder 1 continues to move upward, one end of the clamp 7 cooperates with the mounting seat 6 and the rotating rod on the fixed frame 5 to be affected by the direction-changing component, and the clamp 7 moves out of the upper space of the part so that the laser cutting can cut the part.

[0024] In this embodiment, if Figure 1 , Figure 2 and Figure 3As shown, the mounting mechanism includes a docking component, a locking component and a buckle-pull component. The docking component includes an insert plate 8 installed on one side of the pressure clamp 7. A slot is provided on one side of the mounting seat 6. A sliding slot is provided inside the mounting seat 6 below the slot. A sliding plate 9 is slidably connected to the inner side of the sliding slot. A clamping block 10 is installed on one side of the sliding plate 9. A clamping slot that runs through the inside of the insert plate 8 is provided inside the mounting seat 6. The clamping slot is communicated with the inner side of the sliding slot and the slot. The clamping block 10 is connected to the clamping slot in a snap-fitting manner. The buckle-pull component includes a pull rod 14 installed on the other end of one side of the abutment block 11. A movable slot is provided inside the mounting seat 6 on one side of the abutment slot. The pull rod 14 is slidably connected to the movable slot. An extension groove is provided near the top, and the pull rod 14 extends to one end of the inner side of the extension groove and is rotatably connected to a pull ring. A closed groove is provided on one side of the extension groove at the top of the mounting seat 6, and a closed plate 15 is slidably connected to the inner side of the closed groove. A limiting groove 16 is provided on one side of the inner wall of the closed groove, and a limiting block slidably connected to the limiting groove 16 is installed at one end of the closing plate 15. Then, the two sets of pull rings are buckled to drive the pull rod 14 to slide inside the movable groove, so that the abutment block 11 moves away from the two ends of the card block 10 and no longer abuts the card block 10. At this time, the card block 10 and the sliding plate 9 fall due to gravity, and then the pressing clamp 7 can be held and pulled outward to drive the plug plate 8 to disengage from the inner side of the slot to complete the disassembly and separation.

[0025] In this embodiment, if Figure 1 , Figure 2 and Figure 3 As shown, the locking assembly includes a butting groove opened inside the mounting seat 6 and located on both sides of the card slot, and a butting block 11 is slidably connected to the inner side of the butting groove, and a first spring 12 is installed between one end of one side of the butting block 11 and the inner wall of the butting groove, the card slot and the inner side of the butting groove are connected, the side cross-section of the card block 10 is T-shaped, and the side connection surface of the butting block 11 is L-shaped. The two groups of butting blocks 11 and the opposite ends of the card block 10 are provided with inclined surfaces 13 that fit each other. Further, after selecting the pressure clamp 7 of the corresponding workpiece shape, the plug plate 8 is inserted into the inner side of the slot, the first fixing piece on the plug plate 8 and the second fixing piece 18 in the slot are adsorbed, and then the sliding plate 9 is buckled and lifted up, the card block 10 enters the inner side of the card slot and abuts against the inclined surface 13 on the butting block 11, allowing it to compress the first spring 12 to retract, and after the card block 10 completely enters the card slot, the butting block 11 is ejected by the first spring 12 and abuts against the two ends of the card block 10 for positioning, thereby completing the assembly of the appropriate pressure clamp 7.

[0026] In this embodiment, if Figure 1 and Figure 4As shown, a push-pull groove is provided on one side of the closing plate 15, and a push-pull plate 17 is installed on the inner wall of the push-pull groove. A first fixing piece is embedded and installed at one end of the closing plate 15 and the plug plate 8, and a second fixing piece 18 corresponding to the first fixing piece is embedded and installed on the inner wall of the closing groove and the inner wall of the slot. One of the first fixing piece and the second fixing piece 18 is a first magnet, and the other of the first fixing piece and the second fixing piece 18 is a second magnet. The magnetic poles of the first magnet and the second magnet are opposite and attract each other. Furthermore, the push-pull plate 17 that buckles the inner side of the push-pull groove can drive the closing plate 15 to cooperate with the limit block and the limit groove 16 to move toward the inner wall of the closing groove until it is fully fitted. The first fixing piece and the second fixing piece 18 at this location are also adsorbed and positioned to cover the pull ring to prevent the pull ring from being accidentally touched after assembly is completed, causing it to loosen.

[0027] The implementation principle of the pneumatic clamp for positioning in the embodiment of the present application is as follows: when the cylinder 1 contracts, the connecting rod 4 drives the pressure clamp 7 to move, and the pressure clamp 7 presses the part on the clamping point of the bracket. When the cylinder 1 is opened, the connecting rod 4 is lifted up, and the pressure clamp 7 releases the part. As the cylinder 1 continues to move upward, one end of the pressure clamp 7 cooperates with the mounting seat 6 and the rotating rod on the fixed frame 5 to be acted upon by the direction-changing component, and the pressure clamp 7 moves out of the upper space of the part so that the part can be cut by laser cutting. The two sets of pull rings are buckled to drive the pull rod 14 to slide inside the moving groove, so that the abutment 11 moves away from the two ends of the clamping block 10 and no longer abuts the clamping block 10. At this time, the clamping block 10 and the sliding plate 9 fall due to gravity, and then the pressure clamp 7 can be held and pulled outward to drive the plug plate 8 to disengage from the inside of the slot to complete the disassembly and separation. After selecting the pressing pliers 7 of the corresponding shape of the workpiece, insert the insert plate 8 into the inner side of the slot, the first fixing piece on the insert plate 8 and the second fixing piece 18 in the slot are adsorbed, then the sliding plate 9 is buckled and lifted, the card block 10 enters the inner side of the card slot, and abuts against the inclined surface 13 on the abutting block 11, so that it compresses the first spring 12 to retract, and after the card block 10 completely enters the card slot, the abutting block 11 is ejected by the first spring 12 and abuts against the two ends of the card block 10 for positioning, completing the assembly of the suitable pressing pliers 7, buckling the push-pull plate 17 on the push-pull groove can drive the closing plate 15 to cooperate with the limit block and the limit groove 16 to move toward the inner wall of the closed groove until it is fully fitted, and the first fixing piece and the second fixing piece 18 thereat are also adsorbed and positioned accordingly, covering the pull ring to prevent the pull ring from being accidentally touched after the assembly is completed and causing it to loosen.

[0028] The control method of the present invention is controlled by a controller. The control circuit of the controller can be realized by simple programming by technicians in this field. The provision of power is also common knowledge in this field. In addition, the present invention is used to protect mechanical devices, so the present invention will no longer explain the control method and circuit connection in detail.

[0029] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A pneumatic clamp for positioning, comprising a cylinder (1), characterized in that: A limiting sleeve (2) is installed on one side of the cylinder (1); an output groove (3) is provided inside the limiting sleeve (2) at one end close to the cylinder (1); an extension groove is provided inside the limiting sleeve (2) at one end away from the cylinder (1); the output end of the cylinder (1) is slidably connected to the output groove (3); a connecting rod (4) is installed on the output end of the cylinder (1); the connecting rod (4) and the extension groove are slidably connected; a fixing frame (5) is installed on one end of the connecting rod (4); the fixing frame (5) and the extension groove are slidably connected; the inner side of the fixing frame (5) is rotatably connected to a rotating rod; the outer side of the rotating rod is provided with a mounting seat (6); one side of the mounting seat (6) is clamped with a pressure clamp (7) through a mounting mechanism.

2. A pneumatic clamp for positioning according to claim 1, characterized in that: The mounting mechanism comprises a docking assembly, a locking assembly and a buckling assembly, wherein the docking assembly comprises an insert plate (8) mounted on one side of the pressing clamp (7), a slot is provided on one side of the mounting seat (6), a sliding slot is provided inside the mounting seat (6) below the slot, a sliding plate (9) is slidably connected to the inside of the sliding slot, a clamping block (10) is installed on one side of the sliding plate (9), a clamping slot is provided inside the mounting seat (6) and passes through the inside of the insert plate (8), the clamping slot is communicated with the inside of the sliding slot and the slot, and the clamping block (10) is clamped and connected to the clamping slot.

3. A pneumatic clamp for positioning according to claim 2, characterized in that: The locking assembly comprises abutment grooves formed inside the mounting seat (6) and located on both sides of the card slot, abutment blocks (11) are slidably connected to the inner side of the abutment groove, a first spring (12) is installed between one end of one side of the abutment block (11) and the inner wall of the abutment groove, and the card slot is connected to the inner side of the abutment groove.

4. A pneumatic clamp for positioning according to claim 3, characterized in that: The side cross section of the clamping block (10) is T-shaped, the side connection surface of the abutting block (11) is L-shaped, and the opposite ends of the two groups of abutting blocks (11) and the clamping block (10) are provided with mutually fitting inclined surfaces (13).

5. A pneumatic clamp for positioning according to claim 4, characterized in that: The buckle and pull assembly includes a pull rod (14) installed at the other end of one side of the support block (11), a movable groove is opened inside the mounting seat (6) on one side of the support groove, the pull rod (14) is slidably connected to the movable groove, an extension groove is opened inside the mounting seat (6) near the top end, one end of the pull rod (14) extending to the inner side of the extension groove is rotatably connected to a pull ring, a closed groove is opened at the top of the mounting seat (6) on one side of the extension groove, a closed plate (15) is slidably connected to the inner side of the closed groove, a limiting groove (16) is opened on one side of the inner wall of the closed groove, and a limiting block slidably connected to the limiting groove (16) is installed at one end of the closing plate (15).

6. A pneumatic clamp for positioning according to claim 5, characterized in that: A push-pull groove is provided on one side of the closing plate (15), a push-pull plate (17) is installed on the inner wall of the push-pull groove, a first fixing piece is embedded and installed on one end of the closing plate (15) and the plug plate (8), and a second fixing piece (18) corresponding to the first fixing piece is embedded and installed on the inner wall of the closing groove and the inner wall of the slot.

7. A pneumatic clamp for positioning according to claim 6, characterized in that: One of the first fixing member and the second fixing member (18) is a first magnet, and the other of the first fixing member and the second fixing member (18) is a second magnet. The first magnet and the second magnet have opposite magnetic poles and attract each other.

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