Positioning and clamping device for plug-in type scraping equipment

Abstract

The utility model provides a positioning and clamping device for plug-in type scraping equipment, which belongs to the technical field of plastic pipeline oxide skin scraping equipment and is arranged on a box body of the plug-in type scraping equipment, one side of the box body is provided with an accommodating cavity for inserting a plastic pipeline, and the top of the accommodating cavity is provided with a cutter. The positioning and clamping device comprises a positioning frame, two groups of positioning rollers and a driving mechanism; the two groups of positioning rollers are rotationally arranged on the positioning frame; the two groups of positioning rollers are symmetrically arranged relative to the cutter; the driving mechanism is arranged on the box body; the driving mechanism comprises a lifting end connected with the positioning frame, and under the driving of the lifting end, the positioning roller can be matched with the cutter to clamp the plastic pipeline; through the arrangement, the cushion block does not need to be replaced when plastic pipelines with different diameters are clamped, and the driving mechanism can play a role in compensating abrasion of the positioning roller, so that the plastic pipelines can be clamped through cooperation of the positioning roller and the hobbing cutter, and the situation that the plastic pipelines shake in the scraping process is reduced.

Description

Technical Field

[0001] The utility model belongs to the technical field of plastic pipe oxide skin scraping equipment, and particularly relates to a positioning and clamping device for an insertion type skin scraping device. Background Art

[0002] Before the end of a plastic pipe is electrofusion welded, it is necessary to first scrape off the oxide skin on the outer peripheral wall of the plastic pipe in the area to be welded to ensure the quality after welding. In the prior art, when scraping the oxide skin of a plastic pipe with a smaller diameter, the end of the plastic pipe is inserted into the skin scraping device, and then the operator rotates the skin scraping device to scrape off the oxide skin on the outer peripheral wall of the plastic pipe.

[0003] After one end of the plastic pipe is inserted into the skin scraping device, a cushion block is placed into the skin scraping device. After the cushion block is placed, both sides of the cushion block are respectively abutted against the outer peripheral wall of the plastic pipe and the inner peripheral wall of the skin scraping device, so that the cushion block and the tool cooperate to clamp the plastic pipe.

[0004] However, when processing plastic pipes with different diameters, it is necessary to place cushion blocks with different lengths into the skin scraping device, and after the cushion blocks are used multiple times, the cushion blocks are prone to wear, which will cause a shaking situation between the cushion blocks and the plastic pipe, and easily affect the scraping effect. Summary of the Utility Model

[0005] An embodiment of the utility model provides a positioning and clamping device for an insertion type skin scraping device, aiming to solve the technical problem that in the prior art, the cushion block is easily shaken with the plastic pipe by the abutting method, which in turn affects the scraping effect.

[0006] To achieve the above object, the technical solution adopted by the utility model is:

[0007] A positioning and clamping device for an insertion type skin scraping device is provided, which is arranged on the box body of the insertion type skin scraping device. One side of the box body has a receiving cavity for inserting a plastic pipe, and a tool is provided at the top of the receiving cavity. The positioning and clamping device includes:

[0008] A positioning frame, which is arranged in the receiving cavity; the positioning frame has a degree of freedom to slide in the direction from the bottom to the top of the receiving cavity;

[0009] Two groups of positioning rollers, which are both rotatably arranged on the positioning frame; the two groups of positioning rollers are symmetrically arranged with respect to the tool; the two groups of positioning rollers are used to support the plastic pipe in the receiving cavity;

[0010] A driving mechanism, which is arranged on the box body; the driving mechanism includes a lifting end connected to the positioning frame, and under the drive of the lifting end, the positioning roller can cooperate with the tool to clamp the plastic pipe.

[0011] In a possible implementation, buffer sleeves are sleeved on both sets of the positioning rollers, and the buffer sleeves are detachably connected to the positioning rollers.

[0012] In a possible implementation, support seats are provided at both ends of the positioning rollers on the positioning frame, and the support seats are connected to the positioning frame by bolts; both ends of the positioning rollers have coaxial rotating shafts, and the rotating shafts are rotationally matched with the corresponding support seats.

[0013] In a possible implementation, the bottom of the box body has threaded holes, and the threaded holes communicate with the accommodating cavity; the driving mechanism includes:

[0014] A screw rod, which is in threaded fit with the threaded holes at the bottom of the box body; one end of the screw rod is located in the accommodating cavity, and the other end is located outside the box body; wherein, the inner end of the screw rod is rotationally matched with the positioning frame, and the position of the screw rod and the positioning frame is relatively fixed;

[0015] A guiding component, one end of which is connected to the positioning frame, and the other end is slidably matched with the box body.

[0016] In a possible implementation, the bottom of the positioning frame has a positioning sleeve, and the inner end of the screw rod is inserted and matched with the positioning sleeve; an annular groove is provided on the outer peripheral wall of the inserted end of the screw rod, and a pin hole aligned with the annular groove is provided on the outer peripheral wall of the positioning sleeve; a pin shaft inserted and matched with the pin hole is provided on the positioning sleeve, and the pin shaft can be inserted into the annular groove.

[0017] In a possible implementation, the inserted end of the screw rod contacts the bottom of the positioning sleeve, and the outer peripheral wall of the pin shaft contacts the top wall and the bottom wall of the annular groove respectively.

[0018] In a possible implementation, the guiding component includes a guiding rod, one end of which is fixed to the bottom of the positioning frame, and the other end passes through the bottom of the box body.

[0019] In a possible implementation, matching rollers are provided on both sides of the tool at the top of the accommodating cavity, and the matching rollers are rotatably arranged on the box body; when the plastic pipe is inserted and matched with the accommodating cavity, both matching rollers contact the outer peripheral wall of the plastic pipe;

[0020] Wherein, the two matching rollers and the two sets of positioning rollers cooperate to clamp the plastic pipe.

[0021] In a possible implementation, the box body has a positioning component on the opening side of the accommodating cavity, and the positioning component has a through hole for the plastic pipe to pass through.

[0022] In a possible implementation, there are several positioning components, and the diameters of the through holes on the several positioning components gradually decrease; each positioning component corresponds to a plastic pipe of a certain diameter.

[0023] Compared with the prior art, the positioning and clamping device for the plug-in skin scraping device provided by the present utility model can, after the plastic pipe is inserted into the accommodating cavity, move in the direction of the plastic pipe under the drive of the drive mechanism, and finally make the two groups of positioning rollers cooperate with the tool to clamp the plastic pipe; by the operator rotating the box body around the axis of the plastic pipe, the tool can scrape the oxide skin of the plastic pipe; when the positioning rollers are used multiple times and wear occurs, the drive mechanism can play a compensating role to make the positioning rollers cooperate with the tool to clamp the plastic pipe; through the above settings of the present application, there is no need to replace the cushion block when clamping plastic pipes of different diameters, and the drive mechanism can compensate for the wear of the positioning rollers, so that the positioning rollers can cooperate with the hob to clamp the plastic pipe, reducing the situation of the plastic pipe shaking during the scraping process. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 is a schematic diagram of a positioning and clamping device for a plug-in skin scraping device provided by an embodiment of the present utility model;

[0025] Figure 2 is a schematic diagram of a positioning roller part of a positioning and clamping device for a plug-in skin scraping device provided by an embodiment of the present utility model;

[0026] Figure 3 is a cross-sectional view of a box body part of a positioning and clamping device for a plug-in skin scraping device provided by an embodiment of the present utility model;

[0027] Figure 4 is a cross-sectional view of a positioning frame part of a positioning and clamping device for a plug-in skin scraping device provided by an embodiment of the present utility model;

[0028] Figure 5 is Figure 4 an enlarged schematic view of part A in

[0029] Explanation of reference numerals: 1. Box body; 11. Accommodating cavity; 12. Matching roller; 2. Tool; 3. Positioning frame; 31. Support seat; 32. Positioning sleeve; 4. Positioning roller; 5. Drive mechanism; 51. Screw; 511. Annular groove; 52. Guide component; 53. Rotating handle; 54. Pin shaft; 6. Positioning component. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0030] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present utility model more clear and understandable, the present utility model will be further described in detail below with reference to the accompanying 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.

[0031] Please refer to Figures 1 to 5 together. Now, a positioning and clamping device for an insertion type skin scraping device provided by the present utility model will be described. The positioning and clamping device for an insertion type skin scraping device is arranged on a box body 1 of the insertion type skin scraping device. One side of the box body 1 has a receiving cavity 11 for inserting a plastic pipe. A cutter 2 is provided at the top of the receiving cavity 11. The positioning and clamping device includes a positioning frame 3, two groups of positioning rollers 4 and a driving mechanism 5. The positioning frame 3 is arranged in the receiving cavity 11. The positioning frame 3 has a degree of freedom to slide in the direction from the bottom to the top of the receiving cavity 11. The two groups of positioning rollers 4 are both rotatably arranged on the positioning frame 3. The two groups of positioning rollers 4 are symmetrically arranged with respect to the cutter 2. The two groups of positioning rollers 4 are used to support the plastic pipe in the receiving cavity 11. The driving mechanism 5 is arranged on the box body 1. The driving mechanism 5 includes a lifting end connected to the positioning frame 3. Driven by the lifting end, the positioning rollers 4 can cooperate with the cutter 2 to clamp the plastic pipe.

[0032] Compared with the prior art, for the positioning and clamping device for an insertion type skin scraping device provided by the present utility model, after the plastic pipe is inserted into the receiving cavity 11, the positioning frame 3 can move towards the plastic pipe under the drive of the driving mechanism 5, and finally the two groups of positioning rollers 4 and the cutter 2 cooperate to clamp the plastic pipe. By an operator rotating the box body 1 around the axis of the plastic pipe, the cutter 2 can scrape the oxide skin of the plastic pipe. When the positioning rollers 4 are used multiple times and are worn, the driving mechanism 5 can play a compensating role, so that the positioning rollers 4 and the cutter 2 cooperate to clamp the plastic pipe. Through the above settings of the present application, when clamping plastic pipes with different diameters, there is no need to replace the cushion blocks, and the driving mechanism 5 can play a compensating role for the wear of the positioning rollers 4, so that the positioning rollers 4 can cooperate with the hob to clamp the plastic pipe, reducing the situation of the plastic pipe shaking during the scraping process.

[0033] In some embodiments, as Figures 1 to 5 shown, buffer sleeves (not shown in the figure) are sleeved on both groups of positioning rollers 4. The buffer sleeves are detachably connected to the positioning rollers 4. Support seats 31 are provided at both ends of the positioning rollers 4 on the positioning frame 3. The support seats 31 are connected to the positioning frame 3 by bolts. Both ends of the positioning rollers 4 have coaxial rotating shafts, and the rotating shafts are rotatably matched with the corresponding support seats 31.

[0034] It should be noted that the hardness of the buffer sleeve is lower than that of the plastic pipe. Therefore, when wear occurs between the buffer sleeve and the plastic pipe, the worn part will appear on the buffer sleeve, reducing the wear on the plastic pipe. By sleeving the buffer sleeve on the positioning roller 4, the positioning roller 4 can be protected. The support base 31 is connected to the positioning frame 3 by bolts, which facilitates the disassembly of the support base 31, and further facilitates the removal of the positioning roller 4 from the support base 31; after the positioning roller 4 is removed, it is convenient to replace the buffer sleeve.

[0035] Exemplarily, there are at least two bolts connecting the support base 31 and the positioning frame 3, which can position the support base 31 and reduce the installation error.

[0036] In some embodiments, as Figures 1 to 5 shown, the bottom of the box body 1 has threaded holes, and the threaded holes communicate with the accommodating cavity 11; the driving mechanism 5 includes a screw rod 51 and a guiding member 52; the screw rod 51 is in threaded cooperation with the threaded holes at the bottom of the box body 1; one end of the screw rod 51 is located in the accommodating cavity 11, and the other end is located outside the box body 1; wherein, the inner end of the screw rod 51 is in rotational cooperation with the positioning frame 3, and the position of the screw rod 51 and the positioning frame 3 is relatively fixed; one end of the guiding member 52 is connected to the positioning frame 3, and the other end is in sliding cooperation with the box body 1.

[0037] It should be noted that by the threaded cooperation between the screw rod 51 and the box body 1, when the screw rod 51 is rotated, the positioning frame 3 can slide along the axis direction of the screw rod 51; by providing the guiding member 52 on the positioning frame 3 and the guiding member 52 is in sliding cooperation with the box body 1, the guiding member 52 can play a guiding role for the positioning frame 3; during the process of the screw rod 51 driving the positioning frame 3 to lift and lower, the situation that the positioning frame 3 rotates around the screw rod 51 can be avoided.

[0038] Exemplarily, a rotating handle 53 can be provided at the outer end of the screw rod 51 to facilitate the operator to rotate the screw rod 51.

[0039] In some embodiments, as Figures 1 to 5 shown, the bottom of the positioning frame 3 has a positioning sleeve 32, and the inner end of the screw rod 51 is in plug-in cooperation with the positioning sleeve 32; an annular groove 511 is provided on the outer peripheral wall of the plug-in end of the screw rod 51, and a pin hole aligned with the annular groove 511 is provided on the outer peripheral wall of the positioning sleeve 32; a pin shaft 54 that is in plug-in cooperation with the pin hole is provided on the positioning sleeve 32, and the pin shaft 54 can be inserted into the annular groove 511.

[0040] It should be noted that after the screw rod 51 is in plug-in cooperation with the positioning sleeve 32, by the plug-in of the pin shaft 54 and the pin hole, and the inner end of the pin shaft 54 is inserted into the annular groove 511, the axial limit of the screw rod 51 can be achieved, and the situation that the screw rod 51 is separated from the positioning frame 3 can be reduced, which is convenient for the screw rod 51 to drive the positioning frame 3 to lift and lower.

[0041] Exemplarily, internal threads may be provided in the pin holes on the positioning sleeve 32, and external threads may be provided on the pin shaft 54. The pin shaft 54 and the pin holes are in threaded engagement, which can reduce the situation of the pin shaft 54 falling out of the pin holes.

[0042] In some embodiments, as Figures 1 to 5 shown, the insertion end of the screw rod 51 contacts the bottom of the positioning sleeve 32, and the outer peripheral wall of the pin shaft 54 contacts the top wall and the bottom wall of the annular groove 511 respectively.

[0043] It should be noted that after the screw rod 51 contacts the bottom of the positioning sleeve 32, the insertion position of the screw rod 51 can be limited. At this time, the pin holes on the positioning sleeve 32 are aligned with the annular groove 511, and directly inserting the pin shaft 54 can make the inner end of the pin shaft 54 located in the annular groove 511, which is convenient for the operator to install and position. By the contact between the pin shaft 54 and the top wall and the bottom wall of the annular groove 511, the displacement of the screw rod 51 in its axial direction can be reduced.

[0044] In some embodiments, as Figures 1 to 5 shown, the guiding member 52 includes a guiding rod. One end of the guiding rod is fixed to the bottom of the positioning frame 3, and the other end passes through the bottom of the box body 1.

[0045] It should be noted that the guiding rod can be a cylindrical structure or a prismatic structure; in this embodiment, the cylindrical structure is taken as an example for illustration; the bottom of the box body 1 has a through hole for the guiding rod to pass through. By the sliding fit between the guiding rod and the box body 1, when the screw rod 51 adjusts the position of the positioning frame 3, the situation of the positioning frame 3 rotating around the axis of the screw rod 51 can be avoided.

[0046] In some embodiments, as Figures 1 to 5 shown, on both sides of the tool 2 at the top of the accommodating cavity 11, there are respectively provided cooperating rollers 12. The cooperating rollers 12 are rotatably arranged on the box body 1; when the plastic pipe is in plug-in fit with the accommodating cavity 11, both of the two cooperating rollers 12 contact the outer peripheral wall of the plastic pipe; wherein, the two cooperating rollers 12 and the two groups of positioning rollers 4 cooperate to clamp the plastic pipe.

[0047] It should be noted that by providing two cooperating rollers 12 in the box body 1, the pressing action of the tool 2 can be reduced. At this time, the tool 2 only needs to scrape the oxide skin of the plastic pipe.

[0048] Exemplarily, the tool 2 can be a hob, and a driving motor for driving the hob to rotate is provided in the box body 1; a plurality of cutting edges are arranged at intervals on the outer peripheral wall of the hob. During the rotation of the hob, the cutting edges can scrape the oxide skin on the outer peripheral wall of the plastic pipe.

[0049] In some embodiments, as Figures 1 to 5As shown in the figure, the box body 1 is provided with a positioning component 6 on the opening side of the accommodating cavity 11, and the positioning component 6 is provided with a through hole for a plastic pipeline to pass through; there are several positioning components 6, and the diameters of the through holes on the several positioning components 6 gradually decrease; each positioning component 6 corresponds to a plastic pipeline of a certain diameter.

[0050] It should be noted that through the insertion and cooperation of the positioning component 6 and the plastic pipeline, the plastic pipeline can be limited, and the stability of the skin scraping device can be improved. The positioning component 6 is connected to the box body 1 by bolts.

[0051] The above are only the preferred embodiments of the present invention, and are not intended to limit the present invention. Any modifications, equivalent replacements, and improvements made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A positioning and clamping device for an insertable skin scraping device, which is arranged on a box of the insertable skin scraping device, one side of the box has a receiving cavity for inserting a plastic pipe, and the top of the receiving cavity has a cutter, characterized in that: The positioning clamping device includes: A positioning frame is arranged in the accommodating cavity; the positioning frame has the freedom to slide along the direction from the bottom to the top of the accommodating cavity; Two groups of positioning rollers are both rotatably arranged on the positioning frame; the two groups of positioning rollers are symmetrically arranged about the cutter; the two groups of positioning rollers are used to support the plastic pipe in the accommodating cavity; The driving mechanism is arranged on the box body; the driving mechanism comprises a lifting end connected to the positioning frame, and under the drive of the lifting end, the positioning roller and the cutter can cooperate to clamp the plastic pipe.

2. A positioning and clamping device for an insertable skin scraping device as claimed in claim 1, characterized in that: The two groups of positioning rollers are both covered with buffer sleeves, and the buffer sleeves are detachably connected to the positioning rollers.

3. A positioning and clamping device for an insertable skin scraping device as claimed in claim 2, characterized in that: The positioning frame is provided with support seats at both ends of the positioning roller, and the support seats are connected to the positioning frame by bolts; both ends of the positioning roller have coaxially arranged rotating shafts, and the rotating shafts are rotatably matched with the corresponding support seats.

4. A positioning and clamping device for an insertable skin scraping device as claimed in claim 1, characterized in that: The bottom of the box body is provided with a threaded hole, which is connected to the accommodating cavity; the driving mechanism comprises: A screw rod is threadedly matched with the threaded hole at the bottom of the box body; one end of the screw rod is located in the accommodating cavity, and the other end is located outside the box body; wherein the inner end of the screw rod is rotationally matched with the positioning frame, and the positions of the screw rod and the positioning frame are relatively fixed; The guide component has one end connected to the positioning frame and the other end slidingly matched with the box body.

5. A positioning and clamping device for an insertable skin scraping device as claimed in claim 4, characterized in that: The bottom of the positioning frame is provided with a positioning sleeve, and the inner end of the screw is plugged into the positioning sleeve; the outer peripheral wall of the plug-in end of the screw is provided with an annular groove, and the outer peripheral wall of the positioning sleeve is provided with a pin hole aligned with the annular groove; the positioning sleeve is provided with a pin shaft plugged into the pin hole, and the pin shaft can be inserted into the annular groove.

6. A positioning and clamping device for an insertable skin scraping device as claimed in claim 5, characterized in that: The plug-in end of the screw rod contacts the bottom of the positioning sleeve, and the outer peripheral wall of the pin shaft contacts the top wall and the bottom wall of the annular groove respectively.

7. A positioning and clamping device for an inserted skin scraping device as claimed in claim 4, characterized in that: The guide component comprises a guide rod, one end of which is fixed to the bottom of the positioning frame, and the other end of which passes through the bottom of the box body.

8. A positioning and clamping device for an inserted skin scraping device as claimed in claim 1, characterized in that: The top of the accommodating cavity is provided with matching rollers on both sides of the cutter, and the matching rollers are rotatably arranged on the box body; when the plastic pipe is plugged into the accommodating cavity, the two matching rollers are in contact with the outer peripheral wall of the plastic pipe; The two matching rollers and the two groups of positioning rollers can cooperate to clamp the plastic pipe.

9. A positioning and clamping device for an insertable skin scraping device as claimed in claim 1, characterized in that: The box body is provided with a positioning component at the opening side of the accommodating cavity, and the positioning component is provided with a through hole for the plastic pipe to pass through.

10. A positioning and clamping device for an inserted skin scraping device as claimed in claim 9, characterized in that: There are several positioning components, and the diameters of the through holes on the several positioning components gradually decrease; each positioning component corresponds to a plastic pipe with a diameter.

Images