Automatic clamping device

Abstract

The utility model relates to the technical field of clamping devices, and discloses an automatic clamping device which comprises a supporting frame, a first hydraulic cylinder is installed on the upper surface of the supporting frame, the output end of the first hydraulic cylinder penetrates through the supporting frame and extends towards the lower end, and a clamping structure is arranged at the lower end of the first hydraulic cylinder. The clamping structure comprises a first connecting rod, a second connecting rod, a third connecting rod, a fourth connecting rod, a first pin shaft, a second pin shaft, a third pin shaft, a first rectangular block, a second rectangular block and a clamping plate. The first connecting rod, the second connecting rod, the third connecting rod, the fourth connecting rod, the first rectangular block, the second rectangular block, the clamping plate and the auxiliary clamping assembly are used in cooperation, a good clamping effect can be achieved, when a second hydraulic cylinder of the auxiliary clamping assembly fails, the clamping plate can clamp and fix an object, and the object is prevented from falling off.

Description

Technical Field

[0001] The utility model relates to the technical field of clamping devices, in particular to an automatic clamping device. Background Art

[0002] In the manufacturing process of machine parts, the various processing procedures of the workpiece are often reasonably arranged on several machine tools, and they are connected into a whole with conveying devices and auxiliary devices. Under the action of the conveying device, the workpiece is processed through each processing equipment in the order of its process flow to complete all the processing tasks of the workpiece. Before processing, it is often necessary to collect and sort the parts, and clamping devices are generally used in the collection and sorting process.

[0003] The utility model patent application document with publication number "CN216272790U" discloses a high-temperature casting robot automated clamping device, which is mainly composed of a base, a support mechanism, a clamping adjustment mechanism and a clamping mechanism. This technical solution can adjust the working position of the clamping mechanism so that the device can grab castings in different positions and facilitate the transportation of castings after grabbing.

[0004] The automated clamping device disclosed in the above document has the following defects: if one of the clamping hydraulic cylinders is damaged during use, the automated clamping device will be unable to clamp and fix the object, and may even cause the clamped object to fall off, resulting in a dangerous accident.

[0005] It can be seen from this that the existing automated clamping device does not have a good clamping structure, and it is necessary to improve the existing deficiencies and provide an automated clamping device. Utility Model Content

[0006] The purpose of the utility model is to provide an automatic clamping device to solve the problems raised in the above background technology.

[0007] In order to solve the above technical problems, the utility model is realized by the following technical solutions:

[0008] The utility model discloses an automatic clamping device, comprising a support frame, a first hydraulic cylinder is installed on the upper surface of the support frame, the output end of the first hydraulic cylinder passes through the support frame and extends to the lower end, and a clamping structure is arranged at the lower end of the first hydraulic cylinder, and the clamping structure comprises a first connecting rod, a second connecting rod, a third connecting rod, a fourth connecting rod, a first pin shaft, a second pin shaft, a third pin shaft, a first rectangular block, a second rectangular block and a clamping plate, the outer surface of the first pin shaft is rotatably connected with the first connecting rod and the second connecting rod, the other end of the first connecting rod is rotatably connected with the third connecting rod through the second pin shaft, the other end of the second connecting rod is rotatably connected with the fourth connecting rod through the second pin shaft, the third connecting rod and the fourth connecting rod are cross-arranged, and the third connecting rod is rotatably connected with the fourth connecting rod through the third pin shaft, the first connecting rod, the second connecting rod, the third connecting rod and the fourth connecting rod are all fixed as two and symmetrically arranged, and the lower surfaces of the first rectangular block and the second rectangular block are both equipped with clamping plates.

[0009] Further, a through groove is provided on the outer surface of the first rectangular block, and the interior of the through groove is slidably connected to the second rectangular block. Slide grooves are provided at both ends of the first rectangular block. A mounting hole is provided on the outer surface of the second rectangular block, and a sliding rod is installed inside the mounting hole. The interior of the sliding groove is slidably connected to the sliding rod. Mounting rods are provided at both ends of the first rectangular block, a sliding rod is installed on the end of the third connecting rod away from the first connecting rod, and a mounting rod is installed on the end of the fourth connecting rod away from the second connecting rod.

[0010] Furthermore, a support plate is provided on the outer surface of the clamping plate, a support rod is provided on the lower surface of the support plate, the other end of the support rod is installed on the outer surface of the clamping plate, a placement seat is provided on the upper surface of the support plate, an auxiliary clamping assembly is installed on the upper surface of the placement seat, and a through opening is opened in the middle of the clamping plate.

[0011] Furthermore, the auxiliary clamping assembly includes a second hydraulic cylinder and an abutment plate. The second hydraulic cylinder is installed on the upper surface of the placement seat, and the abutment plate is installed on the output end of the second hydraulic cylinder. The abutment plate is slidably connected to the inside of the through opening.

[0012] Furthermore, the clamping structure also includes a mounting block, a mounting plate and a locking bolt. The outer surface of the first pin shaft is installed with a mounting block, the upper surface of the mounting block is installed with a mounting plate via a locking bolt, and the output end of the first hydraulic cylinder is provided with a mounting plate.

[0013] Furthermore, a base is installed on the lower surface of the support frame, a groove is opened on the lower surface of the base, and a plurality of rollers are rotatably connected inside the groove.

[0014] The utility model has the following beneficial effects:

[0015] (1) The utility model can achieve a good clamping effect through the coordinated use of the first connecting rod, the second connecting rod, the third connecting rod, the fourth connecting rod, the first rectangular block, the second rectangular block, the clamping plate and the auxiliary clamping assembly. When the second hydraulic cylinder of the auxiliary clamping assembly fails, the clamping plate can also clamp and fix the object to prevent the object from falling off.

[0016] (2) The utility model provides a roller, which makes it more convenient and labor-saving to move the support frame, thus achieving a better practical effect.

[0017] Of course, any product implementing the present invention does not necessarily need to achieve all of the advantages described above at the same time. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for describing the embodiments are 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 creative work.

[0019] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0020] Figure 2 This is a schematic diagram of the clamping structure of the utility model;

[0021] Figure 3 It is a schematic diagram of the structure of the first connecting rod, the second connecting rod, the third connecting rod, the fourth connecting rod, the first pin shaft, the second pin shaft and the third pin shaft of the utility model;

[0022] Figure 4 This is a schematic diagram of the structure of the first rectangular block and the second rectangular block of the utility model;

[0023] Figure 5 This is a schematic diagram of the auxiliary clamping assembly and the clamping plate structure of the utility model;

[0024] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0025] In the figure: 1. support frame; 2. first hydraulic cylinder; 3. clamping structure; 301. first connecting rod; 302. second connecting rod; 303. third connecting rod; 304. fourth connecting rod; 305. first pin; 306. second pin; 307. third pin; 308. first rectangular block; 30801. slide groove; 30802. mounting rod; 309. second rectangular block; 30901. slide rod; 3010. clamping plate; 301001. support plate; 301002. support rod; 301003. placement seat; 301004. through port; 3011. mounting block; 3012. mounting plate; 3013. locking bolt; 4. auxiliary clamping assembly; 401. second hydraulic cylinder; 402. abutment plate; 5. base. DETAILED DESCRIPTION

[0026] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. 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] See also Figure 1 - Figure 5 As shown, the utility model is an automated clamping device, including a support frame 1, a first hydraulic cylinder 2 is installed on the upper surface of the support frame 1, the output end of the first hydraulic cylinder 2 passes through the support frame 1 and extends to the lower end, a clamping structure 3 is arranged at the lower end of the first hydraulic cylinder 2, the clamping structure 3 includes a first connecting rod 301, a second connecting rod 302, a third connecting rod 303, a fourth connecting rod 304, a first pin shaft 305, a second pin shaft 306, a third pin shaft 307, a first rectangular block 308, a second rectangular block 309 and a clamping plate 3010, and the outer surface of the first pin shaft 305 is rotatably connected to the first connecting rod 301 and the second connecting rod 302. The connecting rod 302, the other end of the first connecting rod 301 is rotatably connected to the third connecting rod 303 through the second pin shaft 306, the other end of the second connecting rod 302 is rotatably connected to the fourth connecting rod 304 through the second pin shaft 306, the third connecting rod 303 and the fourth connecting rod 304 are cross-arranged, the third connecting rod 303 is rotatably connected to the fourth connecting rod 304 through the third pin shaft 307, the first connecting rod 301, the second connecting rod 302, the third connecting rod 303 and the fourth connecting rod 304 are all fixed as two and symmetrically arranged, and the lower surfaces of the first rectangular block 308 and the second rectangular block 309 are both installed with clamping plates 3010.

[0028] A through groove is provided on the outer surface of the first rectangular block 308, and the interior of the through groove is slidably connected to the second rectangular block 309. Slide grooves 30801 are provided at both ends of the first rectangular block 308. A mounting hole is provided on the outer surface of the second rectangular block 309, and a slide rod 30901 is installed inside the mounting hole. The slide groove 30801 is slidably connected to the slide rod 30901. Mounting rods 30802 are provided at both ends of the first rectangular block 308. The slide rod 30901 is installed at one end of the third connecting rod 303 away from the first connecting rod 301, and the mounting rod 30802 is installed at one end of the fourth connecting rod 304 away from the second connecting rod 302.

[0029] A support plate 301001 is provided on the outer surface of the clamping plate 3010, a support rod 301002 is provided on the lower surface of the support plate 301001, the other end of the support rod 301002 is installed on the outer surface of the clamping plate 3010, a placement seat 301003 is provided on the upper surface of the support plate 301001, an auxiliary clamping assembly 4 is installed on the upper surface of the placement seat 301003, and a through opening 301004 is opened in the middle of the clamping plate 3010.

[0030] The auxiliary clamping assembly 4 includes a second hydraulic cylinder 401 and an abutment plate 402 . The second hydraulic cylinder 401 is installed on the upper surface of the placement seat 301003 . The abutment plate 402 is installed on the output end of the second hydraulic cylinder 401 . The abutment plate 402 is slidably connected to the inside of the through opening 301004 .

[0031] The clamping structure 3 also includes a mounting block 3011, a mounting plate 3012 and a locking bolt 3013. The outer surface of the first pin shaft 305 is mounted with the mounting block 3011, the upper surface of the mounting block 3011 is mounted with the mounting plate 3012 via the locking bolt 3013, and the output end of the first hydraulic cylinder 2 is provided with a mounting plate 3012.

[0032] A base 5 is installed on the lower surface of the support frame 1. A groove is formed on the lower surface of the base 5. A plurality of rollers are rotatably connected inside the groove.

[0033] When in use, first push the support frame 1 and place the support frame 1 where the object is to be clamped, so that the object is located between the two clamping plates 3010, then start the first hydraulic cylinder 2, and the output end of the first hydraulic cylinder 2 drives the mounting block 3011 to move upward, so that the first connecting rod 301 pulls the third connecting rod 303 to move, and the second connecting rod 302 pulls the fourth connecting rod 304 to move, so that the second rectangular block 309 moves inside the through groove of the first rectangular block 308, and at the same time, the sliding rod 30901 slides inside the sliding groove 30801, so that the two clamping plates 3010 move to the adjacent side and clamp the object. When the two clamping plates 3010 clamp the object, start the second hydraulic cylinder 40 1, the output end of the second hydraulic cylinder 401 pushes the abutment plate 402 to move, so that the abutment plate 402 contacts the outer surface of the object and further clamps it. When the object needs to be disassembled, the above steps can be reversed to complete the disassembly. Through the coordinated use of the first connecting rod 301, the second connecting rod 302, the third connecting rod 303, the fourth connecting rod 304, the first rectangular block 308, the second rectangular block 309, the clamping plate 3010 and the auxiliary clamping assembly 4, a better clamping effect can be achieved. When the second hydraulic cylinder 401 of the auxiliary clamping assembly 4 fails, the clamping plate 3010 can also clamp and fix the object. Through the provided rollers, the rollers can make it more convenient and labor-saving to move the support frame 1.

[0034] The preferred embodiments of the utility model disclosed above are only used to help explain the utility model. The preferred embodiments do not describe all the details in detail, nor do they limit the utility model to the specific implementation methods described. Obviously, many modifications and changes can be made according to the content of this specification. This specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the utility model, so that technicians in the relevant technical field can well understand and use the utility model. The utility model is limited only by the claims and their full scope and equivalents.

Claims

1. An automated clamping device, comprising a support frame (1), characterized in that: A first hydraulic cylinder (2) is installed on the upper surface of the support frame (1), an output end of the first hydraulic cylinder (2) passes through the support frame (1) and extends toward the lower end, and a clamping structure (3) is provided at the lower end of the first hydraulic cylinder (2); The clamping structure (3) comprises a first connecting rod (301), a second connecting rod (302), a third connecting rod (303), a fourth connecting rod (304), a first pin (305), a second pin (306), a third pin (307), a first rectangular block (308), a second rectangular block (309) and a clamping plate (3010); The outer surface of the first pin shaft (305) is rotatably connected with the first connecting rod (301) and the second connecting rod (302); the other end of the first connecting rod (301) is rotatably connected to the third connecting rod (303) via the second pin shaft (306); the other end of the second connecting rod (302) is rotatably connected to the fourth connecting rod (304) via the second pin shaft (306); the third connecting rod (303) and the fourth connecting rod (304) are cross-arranged; the third connecting rod (303) is rotatably connected to the fourth connecting rod (304) via the third pin shaft (307); the first connecting rod (301), the second connecting rod (302), the third connecting rod (303) and the fourth connecting rod (304) are all fixed as two and symmetrically arranged; the lower surfaces of the first rectangular block (308) and the second rectangular block (309) are both installed with clamping plates (3010).

2. An automated clamping device according to claim 1, characterized in that: The outer surface of the first rectangular block (308) is provided with a through groove, and the interior of the through groove is slidably connected to the second rectangular block (309), both ends of the first rectangular block (308) are provided with sliding grooves (30801), the outer surface of the second rectangular block (309) is provided with a mounting hole, and a sliding rod (30901) is installed inside the mounting hole, and the interior of the sliding groove (30801) is slidably connected to the sliding rod (30901), both ends of the first rectangular block (308) are provided with mounting rods (30802), the sliding rod (30901) is installed at one end of the third connecting rod (303) away from the first connecting rod (301), and the mounting rod (30802) is installed at one end of the fourth connecting rod (304) away from the second connecting rod (302).

3. An automated clamping device according to claim 1, characterized in that: The outer surface of the clamping plate (3010) is provided with a support plate (301001), the lower surface of the support plate (301001) is provided with a support rod (301002), the other end of the support rod (301002) is installed on the outer surface of the clamping plate (301010), the upper surface of the support plate (301001) is provided with a placement seat (301003), the upper surface of the placement seat (301003) is installed with an auxiliary clamping component (4), and a through opening (301004) is opened in the middle of the clamping plate (3010).

4. An automated clamping device according to claim 3, characterized in that: The auxiliary clamping assembly (4) includes a second hydraulic cylinder (401) and an abutment plate (402). The second hydraulic cylinder (401) is installed on the upper surface of the placement seat (301003). The output end of the second hydraulic cylinder (401) is installed with an abutment plate (402). The abutment plate (402) is slidably connected to the inside of the through opening (301004).

5. The automatic clamping device according to claim 1, characterized in that: The clamping structure (3) further comprises a mounting block (3011), a mounting plate (3012) and a locking bolt (3013); the outer surface of the first pin shaft (305) is mounted with the mounting block (3011); the upper surface of the mounting block (3011) is mounted with the mounting plate (3012) via the locking bolt (3013); and the output end of the first hydraulic cylinder (2) is provided with the mounting plate (3012).

6. The automatic clamping device according to claim 1, characterized in that: A base (5) is installed on the lower surface of the support frame (1), and a groove is provided on the lower surface of the base (5), wherein a plurality of rollers are rotatably connected inside the groove.

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