CN210099530U

CN210099530U - Clamp

Info

Publication number: CN210099530U
Application number: CN201920687638.5U
Authority: CN
Inventors: 闫进; 戴良; 张玉华
Original assignee: Tanac Automation Co Ltd
Current assignee: Tanac Automation Co Ltd
Priority date: 2019-05-14
Filing date: 2019-05-14
Publication date: 2020-02-21
Anticipated expiration: 2029-05-14

Abstract

A clamp comprises a power mechanism and a clamping mechanism arranged on the power mechanism, the power mechanism comprises at least one conical block, the clamping mechanism comprises a mounting disc and at least one guide plate connected with the mounting disc, and at least one opening and closing mechanism arranged on the guide plate, wherein the opening and closing mechanism comprises two sliding blocks and two rollers respectively arranged on the sliding blocks, and two return springs respectively arranged on the same side of the sliding block, wherein the sliding block comprises a U-shaped block, the guide plate comprises a guide groove, the U-shaped block is arranged in the guide groove, the tip of the conical block is driven by the power mechanism to reciprocate between the two rollers so as to drive the sliding blocks of the opening and closing mechanism to move in an opening and closing mode, and the two return springs keep the two sliding blocks to move in an opening and closing mode and contact with each other. The utility model provides a pair of anchor clamps simple structure, the modularization.

Description

Clamp

Technical Field

The utility model belongs to the technical field of anchor clamps, especially an anchor clamps.

Background

The jig is a device for fixing a processing object to occupy a correct position for receiving construction or inspection in a machine manufacturing process. With the rapid development of machine tool technology and the requirements of different factories on low cost, intelligence, high efficiency and higher general call sound of clamps. The existing clamp is complex in structure, when different workpieces need to be clamped, different clamping mechanisms need to be replaced, modularization cannot be achieved, and the production requirement cannot be met.

SUMMERY OF THE UTILITY MODEL

In view of this, the present invention provides a simple and modular clamp to solve the above problems.

A fixture comprises a power mechanism and a clamping mechanism arranged on the power mechanism, wherein the power mechanism comprises at least one conical block, the clamping mechanism comprises a mounting disc arranged on the power mechanism, at least one guide plate fixedly connected with the mounting disc and at least one opening and closing mechanism arranged on the guide plate, the opening and closing mechanism comprises two sliding blocks arranged in parallel, two idler wheels arranged on the sliding blocks respectively and two reset springs arranged on the same side of the sliding blocks respectively, the sliding blocks comprise a U-shaped block, the guide plate comprises a guide groove, the U-shaped block is arranged in the guide groove and can linearly move along the guide groove, the tip part of the conical block is driven by the power mechanism to reciprocate between the two idler wheels so as to drive the sliding blocks of the opening and closing mechanism to open and close, the two return springs maintain the two sliders in engagement and contact tendency.

Furthermore, the power mechanism further comprises an installation frame, an air cylinder device arranged in the installation frame, and a driving disc arranged on the installation frame, and the conical block is arranged on the driving disc.

Further, the mounting bracket comprises a base plate, at least three support columns arranged on the base plate, a mounting plate arranged on the support columns, and at least three guide rods arranged on the mounting plate, and the driving disc slides along the guide rods.

Further, the driving disk include one with the driving disk that the cylinder device is connected, and a cover is located on the guide arm and can follow the driven plate that the guide arm made up-and-down motion, the mounting disc center includes a hole, the other end of driving disk wears to locate the downthehole and the following of mounting disc hole up-and-down motion, the driving disk includes at least one ladder recess, the driven plate includes at least one ladder tongue, the ladder recess with ladder boss joint.

Further, the driven disc comprises at least one through groove, and the conical block is fixed on the through groove.

Further, the mounting disc includes at least one rectangular channel, and one with the first straight flute of rectangular channel intercommunication, the baffle include two set up in on the mounting disc terminal surface and with mounting disc fixed connection's flank, and one with the second straight flute of first straight flute intercommunication, the guide way of baffle set up in the rectangular channel, the toper piece passes in proper order first straight flute, second straight flute.

Furthermore, each slider includes two clamping jaws, two the clamping jaws are parallel arrangement relatively, two pairs of clamping jaws on the slider are parallel arrangement relatively, the clamping jaw includes a rectangle lug, the clamping jaw pass through rectangle lug with the slider block, the width of rectangle lug equals half of the width between two sliders.

Furthermore, the opening and closing mechanism further comprises 2 or 4 shafts arranged on the sliding block, each shaft comprises a groove, and the springs are arranged on the grooves.

Furthermore, the opening and closing mechanism further comprises two positioning pins, and the positioning pins penetrate through the roller and fix the roller on the U-shaped block.

Further, the number of the conical blocks, the through grooves, the guide plate, the rectangular grooves, the first straight grooves and the opening and closing mechanisms is equal.

Compared with the prior art, the utility model provides an anchor clamps include a power unit, and one set up in last fixture of power unit. The power mechanism drives the conical block to reciprocate between the two rollers, so that the two rollers drive the two sliding blocks to linearly move along the guide groove. When the conical block is inserted between the rollers, the return spring is stretched, so that the two sliding blocks slide to realize opening and closing actions so as to be ready for clamping a workpiece to be clamped. And when the conical block is pulled out from between the two rollers, the reset spring resets to drive the sliding blocks to linearly move along the guide grooves, so that the two sliding blocks slide to realize closing action, and a workpiece to be clamped can be clamped. When the workpiece needs to be released, the power mechanism can do the motion again to fulfill the aim of releasing the clamped workpiece. And the number of the opening and closing mechanisms can be determined according to requirements. So, make the utility model discloses a pair of anchor clamps modularization, simple structure is provided.

Drawings

Fig. 1 is a schematic view of a partially exploded structure of a clamp according to the present invention.

Fig. 2 is a partially exploded view of a fixture of fig. 1.

Fig. 3 is another partially exploded view of a fixture of fig. 1.

FIG. 4 is a schematic view of a guide plate of a clamping mechanism of the fixture of FIG. 1.

Fig. 5 is a schematic structural diagram of a sliding block of an opening and closing mechanism of a clamping mechanism of the clamp of fig. 1.

Fig. 6 is a schematic structural view of a mounting plate of a clamping mechanism of the jig of fig. 1.

Fig. 7 is a schematic structural diagram of a driving disk of a power mechanism of the jig of fig. 1.

Fig. 8 is a schematic view of the structure of the driven plate of the driving plate of the power mechanism of the clamp of fig. 1.

Detailed Description

Specific examples of the present invention will be described in further detail below. It should be understood that the description herein of embodiments of the invention is not intended to limit the scope of the invention.

As shown in fig. 1 to 8, it is a schematic structural diagram of a clamp provided by the present invention. The clamp comprises a power mechanism 10 and a clamping mechanism 20 arranged on the power mechanism 10. It is contemplated that the fixture may include other functional modules, such as electrical connections, and assembly components, which are well known to those skilled in the art and will not be described in detail herein.

The power mechanism 10 includes a mounting frame 11, a cylinder device 12 disposed in the mounting frame 11, a driving plate 13 disposed on the mounting frame 11, and at least one conical block 14 fixedly connected to the driving plate 13. The mounting frame 11 includes a base plate 111, at least three supporting posts 112 disposed on the base plate 111, a mounting plate 113 disposed on the supporting posts 112 and parallel to the base plate 111, and at least three guide rods 114 disposed on the mounting plate 113. Thereby making the mounting bracket 11 stable in placement. Specifically, the support column 112 and the base plate 111 are in interference fit, and the support column 112 and the mounting plate 113 are in interference fit, so that the placing stability of the mounting frame 11 can be further improved. The mounting frame 11 is used for supporting the power mechanism 10 and the clamping mechanism 20, and providing a stable working environment for the power mechanism 10 and the clamping mechanism 20. The cylinder device 12 is disposed in an inner cavity formed by the base plate 111, the mounting plate 113 and the supporting posts 1112. Therefore, the space utilization area of the clamp can be saved, the use safety of the clamp is improved, and electric shock is prevented. The drive disc 13 can slide up and down along the guide rods 114. The driving disk 13 includes a driving disk 131 having one end connected to the cylinder device 12, and a driven disk 132 mounted on the guide rod 114 and supported by the driving disk 131 to move up and down along the guide rod 114. And the center of the mounting plate 21 described below includes a hole 211, and the other end of the driving plate 131 is inserted into the hole 211 of the mounting plate 21 described below and can move up and down along the hole 211. The hole 211 functions to achieve circumferential positioning of the driving disk 131. Since the driving disk 131 includes the stepped groove 1311 and the driven disk 132 includes the stepped boss 1321, the stepped groove 1311 is engaged with the stepped boss 1321 to be guided by the guide rod 114, the cylinder device 12 provides power to the driving disk 131, and then the driving disk 131 drives the driven disk 132 to move up and down along the guide rod 114. The driven plate 132 includes at least one through slot 1322, the conical block 14 is fixed to the through slot 1322, and the conical block 14 is adjustable in position along the radial direction of the driven plate 132 within the through slot 1322 according to the shape of a workpiece to be clamped. So that the driving disk 13 can drive the conical blocks 14 to move up and down together. It is contemplated that the tapered block 14 may be secured in a variety of ways, such as bolts, screws, pins, etc., as is known to those skilled in the art and will not be described further herein.

The clamping mechanism 20 comprises a mounting plate 21 arranged on the power mechanism 10, at least one guide plate 22 fixedly connected with the mounting plate 21, and at least one opening and closing mechanism 23 arranged on the guide plate 22. The mounting plate 21 is fixed, and it is contemplated that the manner in which the mounting plate 21 is fixed to the external structure may be various, and as in this example, the mounting plate 21 is bolted to the external structure through three thickness plates, which are well known to those skilled in the art and will not be described herein again. The mounting plate 21 serves to support the guide plate 22 and the opening and closing mechanism 23. The guide plate 22 includes a guide groove 221, and the guide groove 221 is used for providing a guiding function for opening and closing the opening and closing mechanism 23. The mounting plate 21 includes at least one rectangular groove 212, the guide plate 22 includes two side wings 222 disposed on an end surface of the mounting plate 21 and fixedly connected to the mounting plate 21, and the guide groove 221 of the guide plate 22 is disposed in the rectangular groove 212. This allows the guide plate 22 to be fixedly mounted to the mounting plate 21. It is understood that the fixing means may be various, such as bolts, screws, pins, etc., which are well known to those skilled in the art and will not be described herein. The mounting plate 21 and the guide plate 22 are provided with passages through which the tapered blocks 14 can pass. That is, the mounting plate 21 includes a first straight groove 213 communicating with the rectangular groove 212, the guide plate 22 includes a second straight groove 223 communicating with the first straight groove 213, and the tapered block 14 passes through the first straight groove 213 and the second straight groove 223 in this order. So that the conical block 14 can drive the opening and closing mechanism 23 to realize the opening and closing actions.

The opening and closing mechanism 23 includes two parallel sliders 231, two rollers 232 respectively disposed on the sliders 231, two return springs 233 respectively disposed on the same side of the sliders 231, two positioning pins 234 penetrating through the rollers 232 and fixing the rollers 232 on the sliders 231, and two or four shafts 235 disposed on the sliders 231. The slider 231 includes a U-shaped block 2311, two supporting blocks 2312 disposed on the slider 231 and fixedly connected to the slider 231, and four clamping jaws 2313 disposed on the supporting blocks 2312 and fixedly connected to the supporting blocks 2312. It is contemplated that the securing means may be varied, and in this embodiment, the slider 231 includes a groove (not shown), the support block 2312 includes a projection (not shown) complementary to the groove, the groove mates with the projection and the slider 231 and the support block 2312 are connected by a pin or bolt, and the support block 2312 and the clamping jaw 2313 are connected by a pin or bolt. Alternatively, two or three of the slider 231, the support block 2312, and the jaws 2313 may be integrally formed, etc. These are well known to those skilled in the art and will not be described herein. The U-shaped block 2311 is disposed in the guide groove 221 and can move linearly along the guide groove 221 to drive the opening and closing mechanism 23 to open and close. The two clamping jaws 2313 on each of the supporting blocks 2312 are arranged in parallel relatively, the two pairs of clamping jaws 2313 on the two supporting blocks 2312 are arranged in parallel relatively, each clamping jaw 2313 comprises a rectangular lug 2314, each clamping jaw 2313 is clamped with the corresponding supporting block 2312 through the corresponding rectangular lug 2314, and the width of each rectangular lug 2314 is equal to half of the width between the two sliding blocks 231. Thereby, stability of gripping the workpiece by the gripping jaw 2313 can be realized. The opening and closing mechanism 23 realizes the clamping action through two rectangular projections 2314 of two opposite clamping jaws 2313 on the two sliding blocks 231. The tip of the conical block 14 reciprocates between the two rollers 232 under the driving of the power mechanism 10 to drive the sliding block 231 of the opening and closing mechanism 23 to open and close. The two return springs 233 may maintain the two sliders 231 in engagement and contact. The positioning pin 234 functions to fix the roller 232 to the U-shaped block 2311. The shaft 235 includes a groove 2351, and the return spring 233 is disposed on the groove 2351. The shaft 235 serves to fix both ends of the return spring 233, preventing the return spring 233 from sliding on the shaft 235. When the conical block 14 is inserted between the rollers 232, the return spring 233 is stretched, so that the two sliders 231 slide to perform opening and closing actions to prepare for gripping a workpiece to be gripped. When the conical block 14 is pulled out from between the two rollers 232, the return spring 233 returns to drive the sliding block 231 to move linearly along the guide groove 221, so that the two sliding blocks 231 slide to realize closing action, and a workpiece to be clamped can be clamped. When the workpiece needs to be released, the power mechanism 10 can perform the above-mentioned movement again to fulfill the purpose of releasing the clamped workpiece. And the number of the opening and closing mechanisms 23 and the distribution positions on the circumferential surface of the mounting plate 21 can be determined according to requirements. The number of the tapered blocks 14, the through slots 1322, the guide plate 22, the rectangular slots 212, the first straight slots 213, and the opening and closing mechanisms 23 is equal, so that the one clamp is modularized.

Compared with the prior art, the utility model provides a fixture includes a power unit 10, and one set up in fixture 20 on the power unit 10. The power mechanism 10 drives the conical block 14 to reciprocate between the two rollers 232, so that the two rollers 232 drive the two sliding blocks 231 to move linearly along the guide groove 221. When the conical block 14 is inserted between the rollers 232, the return spring 233 is stretched, so that the two sliders 231 slide to perform opening and closing actions to prepare for gripping a workpiece to be gripped. When the conical block 14 is pulled out from between the two rollers 232, the return spring 233 returns to drive the sliding block 231 to move linearly along the guide groove 221, so that the two sliding blocks 231 slide to realize closing action, and a workpiece to be clamped can be clamped. When the workpiece needs to be released, the power mechanism 10 can perform the above-mentioned movement again to fulfill the purpose of releasing the clamped workpiece. And the number of the opening and closing mechanisms 23 can be determined according to requirements. So, make the utility model discloses a pair of anchor clamps modularization, simple structure is provided.

The above description is only for the preferred embodiment of the present invention and should not be construed as limiting the scope of the present invention, and any modification, equivalent replacement or improvement within the spirit of the present invention is encompassed by the claims of the present invention.

Claims

1. A clamp, characterized by: the clamp comprises a power mechanism and a clamping mechanism arranged on the power mechanism, the power mechanism comprises at least one conical block, the clamping mechanism comprises a mounting disc arranged on the power mechanism, at least one guide plate fixedly connected with the mounting disc and at least one opening and closing mechanism arranged on the guide plate, the opening and closing mechanism comprises two sliding blocks arranged in parallel, two idler wheels arranged on the sliding blocks respectively and two reset springs arranged on the same side of the sliding blocks respectively, the sliding blocks comprise a U-shaped block, the guide plate comprises a guide groove, the U-shaped block is arranged in the guide groove and can linearly move along the guide groove, the tip part of the conical block is driven by the power mechanism to reciprocate between the two idler wheels so as to drive the sliding blocks of the opening and closing mechanism to open and close, the two return springs maintain the two sliders in engagement and contact tendency.

2. The fixture of claim 1, wherein: the power mechanism further comprises an installation frame, an air cylinder device arranged in the installation frame, and a driving disc arranged on the installation frame, and the conical block is arranged on the driving disc.

3. The fixture of claim 2, wherein: the mounting bracket comprises a substrate, at least three support columns arranged on the substrate, a mounting plate arranged on the support columns, and at least three guide rods arranged on the mounting plate, wherein the drive disc slides along the guide rods.

4. The fixture of claim 3, wherein: the driving disk comprises a driving disk and a driven disk, the driving disk is connected with the air cylinder device, the driven disk is sleeved on the guide rod and can move up and down along the guide rod, the center of the mounting disk comprises a hole, the other end of the driving disk penetrates through the hole of the mounting disk and can move up and down along the hole, the driving disk comprises at least one stepped groove, the driven disk comprises at least one stepped convex groove, and the stepped groove is connected with the stepped convex plate in a clamping mode.

5. The fixture of claim 4, wherein: the driven disc comprises at least one through groove, and the conical block is fixed on the through groove.

6. The fixture of claim 5, wherein: the mounting disc includes at least one rectangular channel, and one with the first straight flute of rectangular channel intercommunication, the baffle include two set up in on the mounting disc terminal surface and with mounting disc fixed connection's flank, and one with the second straight flute of first straight flute intercommunication, the guide way of baffle set up in the rectangular channel, the toper piece passes in proper order first straight flute, second straight flute.

7. The fixture of claim 1, wherein: each slider includes two clamping jaws, two the clamping jaw is parallel arrangement relatively, two pairs of clamping jaws on the slider are parallel arrangement relatively, the clamping jaw includes a rectangle lug, the clamping jaw passes through the rectangle lug with the slider block, the width of rectangle lug equals half of the width between two sliders.

8. The fixture of claim 1, wherein: the opening and closing mechanism further comprises 2 or 4 shafts arranged on the sliding block, each shaft comprises a groove, and the springs are arranged on the grooves.

9. The fixture of claim 1, wherein: the opening and closing mechanism further comprises two positioning pins, and the positioning pins penetrate through the idler wheels and fix the idler wheels on the U-shaped blocks.

10. The fixture of claim 6, wherein: the conical blocks, the through grooves, the guide plates, the rectangular grooves, the first straight grooves and the opening and closing mechanisms are equal in number.