Clamping device for oil cylinder production and assembly

Abstract

The utility model discloses a clamping device for oil cylinder production and assembly, and relates to the technical field of oil cylinder clamping, the clamping device comprises a base, the middle part of the upper surface of the base is fixedly connected with a telescopic rod, a plurality of clamping assemblies are arranged above the base, the plurality of clamping assemblies are distributed around the telescopic rod, and the telescopic rod is fixedly connected with the base. The clamping assembly comprises arc-shaped extrusion blocks, transmission assemblies for driving the arc-shaped extrusion blocks to get close to each other are arranged between the outer side faces of the arc-shaped extrusion blocks and the base, cavities are formed in the inner side faces of the arc-shaped extrusion blocks, and resistance friction pieces are arranged in the cavities. When the clamping device for producing and assembling the oil cylinder is used, the top end of the telescopic rod lifts the oil cylinder, the gravity of the oil cylinder presses the telescopic rod to contract, under the driving of the connecting rod, the extrusion rods rotate, the top ends of the extrusion rods get close to each other to clamp the oil cylinder, and the heavier the oil cylinder or the larger the downward acting force applied to the oil cylinder in production is; and the clamping is more stable.

Description

Technical Field

[0001] The utility model relates to the technical field of oil cylinder clamping, in particular to a clamping device used for production and assembly of oil cylinders. Background Art

[0002] Publication No. CN217728539U, entitled "A clamping device for hydraulic cylinder production", discloses: comprising a bottom plate, side plates are arranged on both sides of the bottom plate, two screw rod assemblies are arranged on the upper surface of the bottom plate, two support plates are arranged on the upper surface of the screw rod assemblies, a push plate is arranged on the upper surface of the support plate, a second slide rail is arranged on one side of the push plate, a fixed clamping plate is arranged on the lower surface of the second slide rail, a top plate is arranged on the upper surface of the second slide rail, a second slider is slidably connected to the second slide rail, and a movable clamping plate is arranged on one side of the second slider, so as to realize the function of elastically clamping the hydraulic cylinder, thereby avoiding the hydraulic cylinder from being clamped;

[0003] However, the oil cylinder is clamped and fixed by a movable clamp. Figure 1 It can be clearly seen that the movable splint is long and narrow, while the oil cylinder is cylindrical, which makes the contact surface extremely small during clamping, resulting in insufficient friction. Although the oil cylinder can be lifted and initially clamped, during the production and assembly of the oil cylinder, insufficient friction will cause the oil cylinder to be at risk of rotation, thus affecting the production and assembly of the oil cylinder. Utility Model Content

[0004] In view of the shortcomings of the prior art, the utility model provides a clamping device for the production and assembly of an oil cylinder, which solves the problem of clamping and fixing the oil cylinder by a movable clamping plate. Figure 1 It can be clearly seen that the movable splint is long and the cylinder is cylindrical, which makes the contact surface extremely small during clamping, resulting in insufficient friction. Although the cylinder can be lifted and initially clamped, during the production and assembly of the cylinder, insufficient friction will cause the cylinder to be at risk of rotation, thus affecting the production and assembly of the cylinder.

[0005] To achieve the above purpose, the utility model is implemented through the following technical solutions: a clamping device for the production and assembly of an oil cylinder, comprising a base, a telescopic rod is fixedly connected to the middle of the upper surface of the base, a plurality of clamping assemblies are arranged above the base, and the plurality of clamping assemblies are distributed around the telescopic rod, the clamping assembly comprises an arc-shaped extrusion block, a transmission assembly is arranged between the outer side surface of the arc-shaped extrusion block and the base for driving the arc-shaped extrusion blocks to approach each other, a cavity is opened on the inner side surface of the arc-shaped extrusion block, and a resistance friction member is arranged in the cavity.

[0006] Preferably, the transmission assembly includes an extrusion rod, both ends of which are rotatably connected to the base and the arc-shaped extrusion block respectively, the telescopic rod includes a second fixed rod fixedly connected to the base, a first fixed rod is provided at the top of the second fixed rod, the bottom end of the first fixed rod extends into the second fixed rod and is slidably connected thereto, a second spring is provided between the first fixed rod and the second fixed rod, both ends of the second spring are fixedly connected to the first fixed rod and the second fixed rod respectively, and a pulling assembly for driving the extrusion rod to rotate is provided between the telescopic rod and the extrusion rod.

[0007] Preferably, the pulling assembly includes a connecting rod, one end of which is rotatably connected to the circumferential side of the top end of the first fixed rod, the other end of the connecting rod is slidably connected to the extrusion rod via a second T-block, the connecting rod is rotatably connected to the second T-block, and a second T-slot matching the second T-block is provided on the side of the extrusion rod.

[0008] Preferably, an auxiliary clamping assembly is provided between the base and the second fixed rod, the auxiliary clamping assembly includes a first T-shaped block slidably connected to the base, the base is provided with a first T-shaped slot matching the first T-shaped block, the top end of the first T-shaped block is rotatably connected to two support rods, one end of the support rod is rotatably connected to the circumferential side of the top end of the first fixed rod, a ring is slidably sleeved on the circumferential side of the second fixed rod, and the other end of the support rod is rotatably connected to the circumferential side of the ring.

[0009] Preferably, a nut is threadedly connected to the circumference of the second fixing rod and located above the collar, a T-ring block is fixedly connected to the bottom end of the nut, and a T-ring groove matching the T-ring block is formed at the top end of the collar.

[0010] Preferably, the resistance friction member includes two auxiliary extrusion blocks, the inner sides of the two auxiliary extrusion blocks are provided with oblique grooves, the opening directions of the oblique grooves on the two auxiliary extrusion blocks are opposite, and two rotating rods are rotatably connected between the outer sides of the auxiliary extrusion blocks and the cavity.

[0011] Preferably, one of the rotating rods is a telescopic structure, and one of the rotating rods includes a first connecting rod and a second connecting rod, the end of the second connecting rod extends into the first connecting rod and is slidably connected thereto, a first spring is arranged between the first connecting rod and the second connecting rod, and the two ends of the first spring are respectively fixedly connected to the first connecting rod and the second connecting rod.

[0012] Beneficial Effects

[0013] The utility model provides a clamping device for oil cylinder production and assembly. Compared with the prior art, it has the following beneficial effects:

[0014] (1) The clamping device used for the production and assembly of the oil cylinder comprises a clamping assembly arranged around the upper side of the telescopic rod, a squeeze rod rotatably connected between the clamping assembly and the base, a connecting rod is arranged between the squeeze rod and the telescopic rod, and the connecting rod is rotatably connected to the telescopic rod while the other end is slidably connected to the connecting rod through a second T-shaped block. When in use, the top end of the telescopic rod lifts the oil cylinder, and the gravity of the oil cylinder compresses the telescopic rod to contract. Driven by the connecting rod, the squeeze rod rotates, and the top ends of the squeeze rods approach each other to clamp the oil cylinder. The heavier the oil cylinder or the greater the downward force applied to the oil cylinder during production, the more stable the clamping is.

[0015] (2) The clamping device used for the production and assembly of the oil cylinder has an inclined groove formed on the arc-shaped extrusion block. The inclined grooves on the two arc-shaped extrusion blocks are inclined in opposite directions. When the oil cylinder is clamped, the inclined grooves with opposite inclination directions can exert longitudinal resistance on the oil cylinder, thereby preventing the oil cylinder from rotating during assembly. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0017] Figure 2 It is an exploded schematic diagram of the base and auxiliary clamping device structure of the utility model;

[0018] Figure 3 This is a schematic cross-sectional view of the telescopic rod structure of the utility model;

[0019] Figure 4 This is an exploded schematic diagram of the extruded rod connection structure of the utility model;

[0020] Figure 5 It is an exploded schematic diagram of the clamping assembly structure of the utility model.

[0021] Figure 6 It is a schematic cross-sectional view of the clamping assembly structure of the utility model.

[0022] In the figure: 1. base; 11. first T-slot; 2. clamping assembly; 21. arc-shaped extrusion block; 211. cavity; 22. auxiliary extrusion block; 221. inclined groove; 23. rotating rod; 231. first connecting rod; 232. second connecting rod; 233. first spring; 3. transmission assembly; 31. extrusion rod; 311. second T-slot; 4. pulling assembly; 41. connecting rod; 42. second T-block; 5. auxiliary clamping assembly; 51. collar; 511. T-ring groove; 52. support rod; 53. first T-block; 54. nut; 541. T-ring block; 6. telescopic rod; 61. first fixed rod; 62. second fixed rod; 63. second spring. DETAILED DESCRIPTION

[0023] 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.

[0024] See also Figure 1-6 The utility model provides a technical solution: a clamping device for the production and assembly of an oil cylinder, comprising a base 1, a telescopic rod 6 is fixedly connected to the middle of the upper surface of the base 1, a plurality of clamping assemblies 2 are arranged above the base 1, and the plurality of clamping assemblies 2 are distributed around the telescopic rod 6. The clamping assembly 2 comprises an arc-shaped extrusion block 21, a transmission assembly 3 for driving the arc-shaped extrusion block 21 to approach each other is arranged between the outer side surface of the arc-shaped extrusion block 21 and the base 1, a cavity 211 is opened on the inner side surface of the arc-shaped extrusion block 21, and a resistance friction member is arranged in the cavity 211.

[0025] Specifically, the top of the telescopic rod 6 lifts the oil cylinder, and the oil cylinder will drive the telescopic rod 6 to shorten under the action of gravity or the downward pressure applied from the outside. While the telescopic rod 6 shortens, the clamping assembly 2 is driven closer to each other through the transmission assembly 3 to achieve clamping and fixing of the side of the oil cylinder. The greater the weight of the oil cylinder or the greater the downward pressure applied from the outside, the tighter the clamping. The arc-shaped extrusion block 21 can increase the contact area with the surface of the oil cylinder, thereby increasing the friction force and making the clamping more stable. The arc-shaped extrusion block 21 and the resistance friction member are made of rubber on the side in contact with the oil cylinder. The resistance friction member increases the longitudinal friction with the oil cylinder to prevent the oil cylinder from rotating.

[0026] The transmission assembly 3 includes an extrusion rod 31, and the two ends of the extrusion rod 31 are rotatably connected to the base 1 and the arc-shaped extrusion block 21 respectively. The telescopic rod 6 includes a second fixed rod 62 fixedly connected to the base 1, and a first fixed rod 61 is arranged at the top of the second fixed rod 62. The bottom end of the first fixed rod 61 extends into the second fixed rod 62 and is slidably connected thereto. A second spring 63 is arranged between the first fixed rod 61 and the second fixed rod 62, and the two ends of the second spring 63 are fixedly connected to the first fixed rod 61 and the second fixed rod 62 respectively. A pulling assembly 4 for driving the extrusion rod 31 to rotate is arranged between the telescopic rod 6 and the extrusion rod 31.

[0027] Specifically, a second spring 63 is provided in the telescopic rod 6, so that after the oil cylinder is taken out, the original length is restored under the action of the second spring 63, so that it can be easily put into the oil cylinder again.

[0028] The pulling assembly 4 includes a connecting rod 41, one end of which is rotatably connected to the circumferential side of the top end of the first fixed rod 61, and the other end of the connecting rod 41 is slidingly connected to the extrusion rod 31 through the second T-shaped block 42. The connecting rod 41 is rotatably connected to the second T-shaped block 42, and a second T-shaped groove 311 matching the second T-shaped block 42 is opened on the side of the extrusion rod 31.

[0029] Specifically, the telescopic rod 6 is shortened and driven by the connecting rod 41 to rotate, thereby realizing the clamping and fixing of the oil cylinder by the clamping assembly 2, wherein a third spring is arranged in the second T-slot 311, and the two ends of the third spring are respectively fixedly connected to the second T-block 42 and the second T-slot 311, and the third spring drives the second T-block 42 to move upward. Under the buffering effect of the third spring, it can prevent the clamping force applied by the clamping assembly 2 to the oil cylinder by the squeezing rod 31 from being too large, thereby causing damage to the surface of the oil cylinder.

[0030] An auxiliary clamping assembly 5 is arranged between the base 1 and the second fixed rod 62, and the auxiliary clamping assembly 5 includes a first T-shaped block 53 slidably connected to the base 1. The base 1 is provided with a first T-shaped groove 11 matching the first T-shaped block 53. The top end of the first T-shaped block 53 is rotatably connected to two support rods 52, one end of which is rotatably connected to the circumferential side of the top end of the first fixed rod 61, and a ring 51 is slidably sleeved on the circumferential side of the second fixed rod 62, and the other end of the support rod 52 is rotatably connected to the circumferential side of the ring 51.

[0031] Specifically, the downward movement of the collar 51 can assist in pulling the telescopic rod 6 to shorten under the action of the support rod 52, thereby achieving additional application or reduction of the clamping force of the oil cylinder.

[0032] A nut 54 is threadedly connected to the circumference of the second fixing rod 62 and above the collar 51 . A T-shaped ring block 541 is fixedly connected to the bottom end of the nut 54 . A T-shaped ring groove 511 matching the T-shaped ring block 541 is formed at the top end of the collar 51 .

[0033] Specifically, the nut 54 rotates and moves up and down under the action of the thread, driving the collar 51 to slide up and down, so that the support rod 52 squeezes and drives the telescopic rod 6 to extend and shorten.

[0034] The resistance friction member includes two auxiliary extrusion blocks 22 , the inner side surfaces of the two auxiliary extrusion blocks 22 are both provided with inclined grooves 221 , the opening directions of the inclined grooves 221 on the two auxiliary extrusion blocks 22 are opposite, and two rotating rods 23 are rotatably connected between the outer side of the auxiliary extrusion block 22 and the cavity 211 .

[0035] Specifically, the auxiliary extrusion block 22 contacts the surface of the oil cylinder, and under the action of the inclined grooves 221 opened in opposite directions, a longitudinal friction force is applied to the oil cylinder, thereby preventing the oil cylinder from rotating.

[0036] One of the rotating rods 23 is a telescopic structure, and one of the rotating rods 23 includes a first connecting rod 231 and a second connecting rod 232. The end of the second connecting rod 232 extends into the first connecting rod 231 and is slidably connected thereto. A first spring 233 is arranged between the first connecting rod 231 and the second connecting rod 232, and the two ends of the first spring 233 are fixedly connected to the first connecting rod 231 and the second connecting rod 232 respectively.

[0037] Specifically, one of the rotating rods 23 is a telescopic structure, which can increase the friction between the auxiliary extrusion block 22 and the surface of the cylinder.

[0038] Meanwhile, the contents not described in detail in this specification belong to the prior art known to those skilled in the art.

[0039] When working, it is only necessary to place the oil cylinder between several clamping assemblies 2, with its bottom in contact with the top of the telescopic rod 6. Then, under the action of gravity, the telescopic rod 6 can be shortened. Under the action of the connecting rod 41, the tops of the extrusion rods 31 are driven close to each other to achieve clamping and fixing of the surface of the oil cylinder. When the clamping force is insufficient, the nut 54 is rotated, and the nut 54 moves downward, driving the ring 51 to move downward accordingly, so that the support rod 52 pulls the telescopic rod 6 to continue to shorten, thereby increasing the clamping force between the clamping assembly 2 and the oil cylinder.

[0040] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0041] 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 clamping device for oil cylinder production and assembly, Features: It comprises a base (1), a telescopic rod (6) being fixedly connected to the middle of the upper surface of the base (1); A plurality of clamping assemblies (2) are arranged above the base (1), and the plurality of clamping assemblies (2) are distributed around the telescopic rod (6); The clamping assembly (2) comprises an arc-shaped extrusion block (21), and a transmission assembly (3) for driving the arc-shaped extrusion blocks (21) to move closer to each other is provided between the outer side surface of the arc-shaped extrusion block (21) and the base (1); A cavity (211) is provided on the inner side surface of the arc-shaped extrusion block (21), and a resistance friction member is arranged in the cavity (211).

2. A clamping device for oil cylinder production and assembly according to claim 1, Features: The transmission assembly (3) comprises an extrusion rod (31), the two ends of which are rotatably connected to the base (1) and the arc-shaped extrusion block (21), respectively; the telescopic rod (6) comprises a second fixed rod (62) fixedly connected to the base (1), the top end of the second fixed rod (62) is provided with a first fixed rod (61), the bottom end of the first fixed rod (61) extends into the second fixed rod (62) and is slidably connected thereto, a second spring (63) is provided between the first fixed rod (61) and the second fixed rod (62), the two ends of the second spring (63) are fixedly connected to the first fixed rod (61) and the second fixed rod (62), respectively; and a pulling assembly (4) for driving the extrusion rod (31) to rotate is provided between the telescopic rod (6) and the extrusion rod (31).

3. A clamping device for oil cylinder production and assembly according to claim 2, Features: The pulling assembly (4) comprises a connecting rod (41), one end of which is rotatably connected to the peripheral side of the top end of the first fixed rod (61), the other end of which is slidably connected to the extrusion rod (31) via a second T-shaped block (42), the connecting rod (41) is rotatably connected to the second T-shaped block (42), and a second T-shaped groove (311) matching the second T-shaped block (42) is provided on the side of the extrusion rod (31).

4. A clamping device for oil cylinder production and assembly according to claim 2, Features: An auxiliary clamping assembly (5) is arranged between the base (1) and the second fixed rod (62), and the auxiliary clamping assembly (5) comprises a first T-shaped block (53) slidably connected to the base (1); the base (1) is provided with a first T-shaped groove (11) matching the first T-shaped block (53); the top end of the first T-shaped block (53) is rotatably connected to two support rods (52), one end of which is rotatably connected to the peripheral side of the top end of the first fixed rod (61); the peripheral side of the second fixed rod (62) is slidably sleeved with a ring (51) up and down, and the other end of the support rod (52) is rotatably connected to the peripheral side of the ring (51).

5. A clamping device for oil cylinder production and assembly according to claim 4, Features: A nut (54) is threadedly connected to the circumferential side of the second fixing rod (62) and located above the collar (51); a T-shaped ring block (541) is fixedly connected to the bottom end of the nut (54); and a T-shaped ring groove (511) matching the T-shaped ring block (541) is formed at the top end of the collar (51).

6. A clamping device for oil cylinder production and assembly according to claim 1, Features: The resistance friction member comprises two auxiliary extrusion blocks (22), the inner side surfaces of the two auxiliary extrusion blocks (22) are both provided with oblique grooves (221), the opening directions of the oblique grooves (221) on the two auxiliary extrusion blocks (22) are opposite, and two rotating rods (23) are rotatably connected between the outer sides of the auxiliary extrusion blocks (22) and the cavity (211).

7. A clamping device for oil cylinder production and assembly according to claim 6, Features: One of the rotating rods (23) is a telescopic structure, and one of the rotating rods (23) comprises a first connecting rod (231) and a second connecting rod (232), the end of the second connecting rod (232) extends into the first connecting rod (231) and is slidably connected thereto, a first spring (233) is arranged between the first connecting rod (231) and the second connecting rod (232), and the two ends of the first spring (233) are respectively fixedly connected to the first connecting rod (231) and the second connecting rod (232).

Images