Needle head type sealing ring automatic pushing and opening mechanism

Abstract

A needle head type automatic pushing and opening mechanism for sealing rings comprises a material taking needle and a pushing assembly, the material taking needle comprises a sleeve and a needle head, the needle head is in sliding connection with the sleeve, a plurality of arc-shaped protruding blocks are arranged outside the needle head, each arc-shaped protruding block is provided with a conical face, a plurality of opening claws are arranged at the lower end of the sleeve, and the opening claws and the arc-shaped protruding blocks are arranged at intervals. The pushing assembly comprises a bottom plate, baffles fixed to the two sides of the bottom plate, a side plate fixed to the middle of the bottom plate, two sliding blocks, an opening pushing block and a clamping jaw air cylinder, the clamping jaw air cylinder is fixedly connected with the bottom plate, the two sliding blocks are slidably connected with the side plate, a spring is arranged between each sliding block and the corresponding baffle, and the opening pushing block is connected with the clamping jaw air cylinder. The distraction push block is detachably connected with the sliding block. The utility model has the beneficial effects that the needle head can be elastically clamped by simulating the action of a human finger, and the needle head pushes a sealing ring upwards to realize opening treatment in the slow descending process, so that the damage probability of a product during opening is reduced, and the production quality is improved.

Description

Technical Field

[0001] The utility model relates to the field of sealing ring sleeve assembly equipment, in particular to an automatic pushing and expanding mechanism for needle-type sealing rings. Background Technique

[0002] Sealing rings are commonly used seals.

[0003] Before the assembly and processing of the sealing ring, the sealing ring needs to be expanded before being sleeved. When the existing micro-miniature sealing ring expanding mechanism takes the micro-miniature sealing ring, using a pull rod to pull the sealing ring from the inside and outside easily causes damage to the sealing ring. Therefore, an automatic pushing and expanding mechanism for needle-type sealing rings is needed. Content of the Utility Model

[0004] The purpose of the utility model is to provide an automatic pushing and expanding mechanism for needle-type sealing rings, which can simulate the action of human fingers to elastically clamp the needle, and push the sealing ring upward during the slow descent of the needle to achieve the expansion treatment, reduce the breakage probability of the product during expansion, and improve the production quality.

[0005] To achieve the above purpose, the utility model provides the following technical solutions: an automatic pushing and expanding mechanism for needle-type sealing rings, including a material taking needle and a pushing component. The material taking needle includes a sleeve and a needle head, the needle head is slidably connected to the sleeve, a plurality of arc-shaped convex blocks are arranged on the outer part of the needle head, each arc-shaped convex block is provided with a conical surface, a plurality of supporting claws are arranged at the lower end of the sleeve, the supporting claws and the arc-shaped convex blocks are arranged at intervals, the pushing component includes a bottom plate, baffles fixed on both sides of the bottom plate, a side plate fixed in the middle of the bottom plate, sliders, a pushing block for expansion and a clamping jaw cylinder. The clamping jaw cylinders are fixedly connected to the bottom plate. There are specifically two sliders, and both sliders are slidably connected to the side plate. A spring is arranged between each slider and the baffle, and the pushing block for expansion is detachably connected to the slider.

[0006] Furthermore, a plurality of the arc-shaped convex blocks are arranged in a circular array at the lower end of the needle head, the arc-shaped convex blocks and the needle head are integrated, and the supporting claws and the sleeve are integrated.

[0007] Furthermore, a groove is arranged below each slider, and the two clamping jaws of the clamping jaw cylinder are correspondingly arranged with the grooves of the two sliders.

[0008] Furthermore, a stroke limiting block is fixedly connected in the middle of the bottom plate between the two sliders, a relief hole is opened on the stroke limiting block, and the relief hole is correspondingly arranged with the needle head.

[0009] The beneficial effect of the utility model is: it can simulate the action of human fingers to elastically clamp the needle, and push the sealing ring upward during the slow descent of the needle to achieve the expansion treatment, reduce the breakage probability of the product during expansion, and improve the production quality. Description of the Drawings

[0010] Figure 1 This is a first - perspective schematic view of the automatic pushing and expanding mechanism for the needle - type sealing ring of the present utility model.

[0011] Figure 2 This is a second - perspective schematic view of the automatic pushing and expanding mechanism for the needle - type sealing ring of the present utility model.

[0012] Figure 3 This is a schematic view of the jaw cylinder of the automatic pushing and expanding mechanism for the needle - type sealing ring of the present utility model.

[0013] Figure 4 This is an exploded schematic view of the material - taking needle of the automatic pushing and expanding mechanism for the needle - type sealing ring of the present utility model.

[0014] In the figure: 101, sleeve; 102, needle; 103, arc - shaped convex block; 104, supporting claw; 201, bottom plate; 202, baffle; 203, side plate; 204, slider; 205, spring; 206, expanding push block; 207, jaw cylinder; 3, stroke limit block. Detailed Embodiment

[0015] In order to make the objectives, technical solutions and advantages of the present utility model clearer and more understandable, the following further details the present utility model in conjunction with the drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present utility model and are not used to limit the present utility model.

[0016] Refer to Figures 1 - 4 The automatic pushing and expanding mechanism for the needle - type sealing ring shown, which includes a material - taking needle and a pushing assembly. The material - taking needle includes a sleeve 101 and a needle 102. The needle 102 is slidably connected to the sleeve 101. A plurality of arc - shaped convex blocks 103 are provided on the outer part of the needle 102. Each arc - shaped convex block 103 is provided with a conical surface. A plurality of supporting claws 104 are provided at the lower end of the sleeve 101. The supporting claws 104 and the arc - shaped convex blocks 103 are arranged at intervals. The pushing assembly includes a bottom plate 201, baffles 202 fixed on both sides of the bottom plate 201, a side plate 203 fixed in the middle of the bottom plate 201, sliders 204, an expanding push block 206 and a jaw cylinder 207. The jaw cylinder 207 is fixedly connected to the bottom plate 201. There are specifically two sliders 204, and both sliders 204 are slidably connected to the side plate 203. The side plate 203 can guide the sliding of the sliders 204 to prevent the sliders 204 from shifting. A spring 205 is provided between each slider 204 and the baffle 202. The expanding push block 206 is detachably connected to the slider 204.

[0017] A plurality of the arc-shaped bumps 103 are distributed in an annular array at the lower end of the needle 102. The arc-shaped bumps 103 and the needle 102 are integrally formed. The arc-shaped bumps 103 can cooperate with the expansion push block 206 to expand the sealing ring. The claw 104 and the sleeve 101 are integrally formed. The claw 104 can ensure that the sealing ring is in an expanded state after the needle 102 is withdrawn upward.

[0018] A groove is provided below each of the sliders 204. The two claws of the claw cylinder 207 are respectively arranged corresponding to the grooves of the two sliders 204. The claw cylinder 207 can push the two sliders 204 away from each other.

[0019] A travel limit block 3 is fixedly connected between the two sliders 204 in the middle of the bottom plate 201. A relief hole is formed in the travel limit block 3. The relief hole is arranged corresponding to the needle 102. The relief hole can make way for the needle 102 when it descends to prevent interference.

[0020] The working principle of the present utility model is as follows: When the present utility model is in use, the sleeve 101 is fixed on an external robot arm, and the needle 102 can slide relative to the sleeve 101. After a sealing ring is pre-fitted on the lower end of the needle 102, it slowly descends towards the expansion push block 206 until it contacts the surface thereof. Then, the claws of the claw cylinder 207 open and push the two push blocks 204 away from each other. Under the action of the spring 205, the expansion push block 206 elastically clamps the needle 102 by simulating the action of a human finger. During the slow descent of the needle, the expansion push block pushes the sealing ring upward relative to the needle 102, and the sealing ring can be expanded under the action of the arc-shaped bumps 103.

[0021] The above embodiments are used to further illustrate the present utility model, but do not limit the present utility model to these specific embodiments. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model shall be understood to be within the protection scope of the present utility model.

Claims

1. Needle - type sealing ring automatic pushing and expanding mechanism, characterized in that: It includes a material taking needle and a pushing component. The material taking needle includes a sleeve (101) and a needle head (102). The needle head (102) is slidably connected to the sleeve (101). A plurality of arc-shaped bumps (103) are provided on the outer part of the needle head (102). Each of the arc-shaped bumps (103) is provided with a conical surface. A plurality of supporting claws (104) are provided at the lower end of the sleeve (101). The supporting claws (104) and the arc-shaped bumps (103) are arranged at intervals. The pushing component includes a bottom plate (201), baffles (202) fixed on both sides of the bottom plate (201), a side plate (203) fixed in the middle of the bottom plate (201), a slider (204), a spreading push block (206) and a clamping jaw cylinder (207). The clamping jaw cylinders (207) are fixedly connected to the bottom plate (201). There are specifically two sliders (204), and both sliders (204) are slidably connected to the side plate (203). A spring (205) is provided between each slider (204) and the baffle (202). The spreading push block (206) is detachably connected to the slider (204).

2. The automatic pushing and spreading mechanism for the needle-type sealing ring according to claim 1, characterized in that: The plurality of arc-shaped bumps (103) are annularly arrayed at the lower end of the needle head (102). The arc-shaped bumps (103) and the needle head (102) are integrally formed. The supporting claws (104) and the sleeve (101) are integrally formed.

3. The automatic pushing and expanding mechanism for the needle-type sealing ring according to claim 1, wherein: A groove is provided below each slider (204). The two clamping jaws of the clamping jaw cylinder (207) are correspondingly arranged with the grooves of the two sliders (204).

4. The automatic pushing and expanding mechanism for the needle-type sealing ring according to claim 1, wherein: A stroke limiting block (3) is fixedly connected in the middle of the bottom plate (201) between the two sliders (204). A relief hole is formed in the stroke limiting block (3). The relief hole is correspondingly arranged with the needle head (102).

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