A clamp opener

Abstract

The utility model relates to the technical field of pneumatic tool clamping, and provides a clamp opener, including a clamp opening mechanism and a pneumatic device, the clamp opening mechanism including a transmission assembly and two clamp extraction columns, the transmission assembly including a pushing member and a first transmission member and a second transmission member hinged to each other through a hinge structure, the two clamp extraction columns are respectively inserted into the first transmission member and the second transmission member, the hinge structure is slidably inserted into one end of the pushing member, and the other end of the pushing member is rotatably connected to the first transmission member and the second transmission member respectively; a driving rod connected to the pushing member is provided on the pneumatic device, and the driving rod drives the two clamp extraction columns to open or close through the transmission assembly, and the sliding direction of the two clamp extraction columns during the opening process is toward the pneumatic device; the utility model solves the problem of forward displacement of the clamp during the clamp opening process, and has the advantages of simple structure and low manufacturing cost.

Description

Technical Field

[0001] The utility model relates to the technical field of pneumatic tool clamping, in particular to a clamp opener. Background Art

[0002] In the surface processing of aluminum profiles, a clamp head without a handle is often used. This clamp head must be operated with a pneumatic tool. For example, a pneumatic clamp remover with a publication number of CN207289891U is used. The pneumatic clamp remover includes a clamp removing mechanism and a cylinder device. Two clamp-push columns are provided on the clamp removing mechanism. The clamp head is sleeved on the clamp-push columns. The two clamp-push columns of the clamp removing mechanism are driven by the cylinder device to drive the clamp head to open or close, so as to realize the clamping function of the clamp head. However, due to the moving trajectory of the clamp-push columns of this pneumatic clamp remover, the clamp will be pushed forward during the clamping process, that is, it will be displaced in the direction of the clamped profile, which can easily cause the clamp to be unstable when installed on the clamp remover and ultimately affect the clamping efficiency. Utility Model Content

[0003] Based on this, in order to solve the problem of the clamp moving forward during the opening process, the utility model provides a clamp opener, and its specific technical solution is as follows:

[0004] A clamp opener comprises a clamp opening mechanism and a pneumatic device, the clamp opening mechanism comprises a transmission assembly and two clamp extraction columns, the transmission assembly comprises a pushing member and a first transmission member and a second transmission member hinged to each other through a hinge structure, the two clamp extraction columns are respectively inserted into the first transmission member and the second transmission member, the hinge structure is slidably inserted into one end of the pushing member, and the other end of the pushing member is rotatably connected to the first transmission member and the second transmission member respectively; a driving rod connected to the pushing member is provided on the pneumatic device, and the driving rod drives the two clamp extraction columns to open or close through the transmission assembly, and the sliding direction of the two clamp extraction columns during the opening process is toward the pneumatic device.

[0005] The above-mentioned clamp opener is provided with a first transmission member and a second transmission member. The hinged state between the first transmission member and the second transmission member facilitates the two clamp pulling columns to perform reciprocating opening or closing movements, so that the two clamp pulling columns can cooperate to realize the clamping operation of the clamp; the sliding direction of the two clamp pulling columns during the opening process is toward the pneumatic device, so that when the clamp opener opens the clamp, the clamp can gradually move away from the clamped profile, thereby avoiding collision between the clamp and the clamped profile and improving the installation stability of the clamp.

[0006] Furthermore, the clamping mechanism also includes an opening clamp head, which includes an upper mounting plate, a lower mounting plate and an end wall that are integrally formed. Two guide holes are symmetrically arranged on the top of the upper mounting plate and the bottom of the lower mounting plate. The outer contour of the guide hole is arc-shaped, and a sliding step that is recessed into the interior of the opening clamp head is also arranged in the guide hole.

[0007] Furthermore, the upper and lower ends of the clamp extraction column are respectively inserted through the guide hole and sleeved with a sliding ring, and the sliding ring abuts against the sliding step and can slide relative to the sliding step.

[0008] Furthermore, rotating holes are provided on the upper mounting plate and at corresponding positions on the lower mounting plate; the hinge structure includes a hinge pin and two rotating rings sleeved on the upper and lower ends of the hinge pin, the hinge pin is slidably inserted on the pushing member and is rotatably connected to the first transmission member and the second transmission member respectively, and the rotating ring is inserted on the rotating hole and can rotate relative to the rotating hole.

[0009] Furthermore, the structure of the first transmission member is the same as the structure of the second transmission member.

[0010] Furthermore, the first transmission member includes a swing arm and a connecting arm, one end of the swing arm is rotatably connected to the hinge pin, the other end of the swing arm is provided with a notch, one end of the connecting arm is arranged in the notch, the clamp extraction column is sequentially inserted into and passes through the swing arm, the connecting arm and the swing arm, and the other end of the connecting arm is rotatably connected to the pushing member.

[0011] Furthermore, the pneumatic device also includes a driving member for controlling the telescopic movement of the driving rod, and the output end of the driving member is drivingly connected to the driving rod.

[0012] Furthermore, the pushing member includes a rod portion and a adapter portion, one end of the rod portion is connected to the driving rod, and the other end of the rod portion is fixedly connected to the adapter portion, a sliding groove is provided on the rod portion, and the hinge pin is slidably inserted in the sliding groove, and the upper and lower ends of the adapter portion are rotatably connected to the connecting arm of the first transmission member and the connecting arm of the second transmission member respectively. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a structural schematic diagram of a clamp opener according to an embodiment of the utility model;

[0014] Figure 2 This is one of the partial structural schematic diagrams of the clamp opener described in one embodiment of the utility model;

[0015] Figure 3 This is the second schematic diagram of the partial structure of the clip opener described in one embodiment of the utility model;

[0016] Figure 4 This is the third partial structural schematic diagram of the clamp opener described in one embodiment of the utility model.

[0017] Description of reference numerals:

[0018] 1. Transmission assembly; 11. Pushing member; 111. Rod; 1111. Slide groove; 112. Adapter; 12. First transmission member; 121. Swing arm; 122. Connecting arm; 13. Second transmission member; 2. Clamping column; 21. Sliding ring; 3. Articulated structure; 31. Articulated pin; 32. Rotating ring; 4. Driving rod; 5. Opening chuck; 51. Guide hole; 511. Sliding step; 52. Rotating hole; 6. Driving member. DETAILED DESCRIPTION

[0019] In order to make the purpose, technical solution and advantages of the utility model more clear, the utility model is further described in detail below in conjunction with its embodiments. It should be understood that the specific implementation methods described here are only used to explain the utility model and do not limit the protection scope of the utility model.

[0020] It should be noted that when an element is referred to as being "fixed to" another element, it may be directly on the other element or there may be a central element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are for illustrative purposes only and do not represent the only implementation method.

[0021] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art in the technical field of the present invention. The terms used herein in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention. The term "and / or" used herein includes any and all combinations of one or more related listed items.

[0022] The “first” and “second” mentioned in the present invention do not represent specific quantities and orders, but are merely used to distinguish names.

[0023] like Figure 1-Figure 4As shown, a clamp opener in one embodiment of the utility model includes a clamp opening mechanism and a pneumatic device, the clamp opening mechanism includes a transmission assembly 1 and two clamp extraction columns 2, the transmission assembly 1 includes a pushing member 11 and a first transmission member 12 and a second transmission member 13 hinged to each other through a hinge structure 3, the two clamp extraction columns 2 are respectively inserted into the first transmission member 12 and the second transmission member 13, the hinge structure 3 is slidably inserted into one end of the pushing member 11, and the other end of the pushing member 11 is rotatably connected to the first transmission member 12 and the second transmission member 13 respectively; a driving rod 4 connected to the pushing member 11 is provided on the pneumatic device, and the driving rod 4 drives the two clamp extraction columns 2 to open or close through the transmission assembly 1, and the sliding direction of the two clamp extraction columns 2 during the opening process is toward the pneumatic device.

[0024] The above-mentioned clamp opener is provided with a first transmission member 12 and a second transmission member 13. The hinged state between the first transmission member 12 and the second transmission member 13 facilitates the two clamp extraction columns 2 to perform reciprocating opening or closing movements, so that the two clamp extraction columns 2 can cooperate to realize the clamping operation of the clamp; the sliding direction of the two clamp extraction columns 2 during the opening process is toward the pneumatic device, so that when the clamp opener opens the clamp, the clamp can gradually move away from the clamped profile, thereby avoiding collision between the clamp and the clamped profile and improving the installation stability of the clamp.

[0025] like Figure 1 As shown, in one embodiment, the clamping mechanism further includes a clamping head 5, which includes an upper mounting plate, a lower mounting plate and an end wall formed in one piece, and two guide holes 51 are symmetrically arranged on the top of the upper mounting plate and the bottom of the lower mounting plate, and the outer contour of the guide hole 51 is in an arc shape, and a sliding step 511 recessed toward the inside of the clamping head 5 is also arranged in the guide hole 51. In this way, the one-piece setting can improve the strength and durability of the clamping head 5 and reduce maintenance costs.

[0026] like Figure 1-Figure 4 As shown, in one embodiment, the upper and lower ends of the clamp extraction column 2 are respectively inserted through the guide hole 51 and sleeved with a sliding ring 21 . The sliding ring 21 abuts against the sliding step 511 and can slide relative to the sliding step 511 .

[0027] like Figure 1-Figure 4 As shown, in one of the embodiments, a rotating hole 52 is opened at the corresponding position on the upper mounting plate and the lower mounting plate; the hinge structure 3 includes a hinge pin 31 and two rotating rings 32 mounted on the upper and lower ends of the hinge pin 31, the hinge pin 31 is slidably inserted into the pusher 11 and is rotatably connected to the first transmission member 12 and the second transmission member 13 respectively, and the rotating ring 32 is inserted into the rotating hole 52 and can rotate relative to the rotating hole 52.

[0028] Specifically, the outer contour of the sliding ring 21 is a ring shape and the diameter of the sliding ring 21 is larger than the diameter of the guide hole 51. This prevents the clamping column 2 from directly passing through the guide hole 51, causing the clamping column 2 to fall off.

[0029] In one embodiment, the structure of the first transmission member 12 is the same as the structure of the second transmission member 13 .

[0030] like Figure 2-Figure 4 As shown, in one embodiment, the first transmission member 12 includes a swing arm 121 and a connecting arm 122, one end of the swing arm 121 is rotatably connected to the hinge pin 31, the other end of the swing arm 121 is provided with a notch, one end of the connecting arm 122 is arranged in the notch, the clamping column 2 is inserted and penetrates the swing arm 121, the connecting arm 122 and the swing arm 121 in sequence, and the other end of the connecting arm 122 is rotatably connected to the pusher 11. The clamping column 2 is arranged between the swing arm 121 and the connecting arm 122, so that the connecting arm 122 can also rotate synchronously on the adapter 112 while the swing arm 121 is swinging, and finally cooperate to complete the opening or closing action of the two clamping columns 2.

[0031] In one embodiment, the pneumatic device further includes a driving member 6 for controlling the telescopic movement of the driving rod 4 , and an output end of the driving member 6 is drivingly connected to the driving rod 4 .

[0032] like Figure 2-Figure 4 As shown, in one embodiment, the pusher 11 includes a rod 111 and a transition part 112, one end of the rod 111 is connected to the driving rod 4, and the other end of the rod 111 is fixedly connected to the transition part 112. A slide groove 1111 is provided on the rod 111, and the hinge pin 31 is slidably inserted in the slide groove 1111. The upper and lower ends of the transition part 112 are respectively rotatably connected to the connecting arm 122 of the first transmission member 12 and the connecting arm 122 of the second transmission member 13. In this way, the driving member 6 drives the telescopic movement of the driving rod 4, thereby driving the hinge pin 31 to slide along the slide groove 1111, so that the first transmission member 12 and the second transmission member 13 can swing back and forth, and drive the two clamping columns 2 to open or close through the rotation connection on the transition part 112, so as to realize the clamping operation of the clamp.

[0033] The technical features of the above-described embodiments may be arbitrarily combined. To make the description concise, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0034] The above-mentioned embodiments only express several implementation methods of the utility model, and the description is relatively specific and detailed, but it cannot be understood as limiting the scope of the utility model patent. It should be pointed out that for ordinary technicians in this field, several modifications and improvements can be made without departing from the concept of the utility model, which all belong to the protection scope of the utility model. Therefore, the protection scope of the utility model patent shall be based on the attached claims.

Claims

1. A clamp opener, comprising a clamp opening mechanism and a pneumatic device, characterized in that: The clamp opening mechanism includes a transmission assembly and two clamp extraction columns, the transmission assembly includes a pushing member and a first transmission member and a second transmission member hinged to each other through a hinge structure, the two clamp extraction columns are respectively inserted into the first transmission member and the second transmission member, the hinge structure is slidably inserted into one end of the pushing member, and the other end of the pushing member is rotatably connected to the first transmission member and the second transmission member respectively; a driving rod connected to the pushing member is provided on the pneumatic device, and the driving rod drives the two clamp extraction columns to open or close through the transmission assembly, and the sliding direction of the two clamp extraction columns during the opening process is toward the pneumatic device.

2. The clip opener according to claim 1, characterized in that: The clamping mechanism also includes an opening clamp head, which includes an upper mounting plate, a lower mounting plate and an end wall that are integrally formed. Two guide holes are symmetrically arranged on the top of the upper mounting plate and the bottom of the lower mounting plate. The outer contour of the guide hole is arc-shaped, and a sliding step that is recessed into the interior of the opening clamp head is also arranged in the guide hole.

3. The clip opener according to claim 2, characterized in that: The upper and lower ends of the clamp extraction column are respectively inserted through the guide hole and sleeved with a sliding ring, and the sliding ring abuts against the sliding step and can slide relative to the sliding step.

4. The clip opener according to claim 2, characterized in that: Rotating holes are provided at corresponding positions on the upper mounting plate and the lower mounting plate; the hinge structure includes a hinge pin and two rotating rings sleeved on the upper and lower ends of the hinge pin, the hinge pin is slidably inserted on the pushing member and is rotatably connected to the first transmission member and the second transmission member respectively, and the rotating ring is inserted on the rotating hole and can rotate relative to the rotating hole.

5. The clip opener according to claim 4, characterized in that: The structure of the first transmission member is the same as that of the second transmission member.

6. The clip opener according to claim 5, characterized in that: The first transmission member includes a swing arm and a connecting arm, one end of the swing arm is rotatably connected to the hinge pin, the other end of the swing arm is provided with a notch, one end of the connecting arm is arranged in the notch, the clamp extraction column is sequentially inserted into and passes through the swing arm, the connecting arm and the swing arm, and the other end of the connecting arm is rotatably connected to the pushing member.

7. The clip opener according to claim 6, characterized in that: The pneumatic device also includes a driving member for controlling the telescopic movement of the driving rod, and an output end of the driving member is drivingly connected to the driving rod.

8. The clip opener according to claim 7, characterized in that: The pushing member includes a rod portion and a transition portion, one end of the rod portion is connected to the driving rod, and the other end of the rod portion is fixedly connected to the transition portion, a sliding groove is provided on the rod portion, and the hinge pin is slidably inserted in the sliding groove, and the upper and lower ends of the transition portion are rotatably connected to the connecting arm of the first transmission member and the connecting arm of the second transmission member respectively.

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