CN216483913U - Special clamp for stretching plastic retainer - Google Patents
Special clamp for stretching plastic retainer Download PDFInfo
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- CN216483913U CN216483913U CN202123434761.2U CN202123434761U CN216483913U CN 216483913 U CN216483913 U CN 216483913U CN 202123434761 U CN202123434761 U CN 202123434761U CN 216483913 U CN216483913 U CN 216483913U
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Abstract
The application discloses tensile special fixture of plastics holder belongs to tensile anchor clamps technical field, and it includes hollow drain pan and fly leaf, and equal threaded connection has the bracing piece on hollow drain pan and the fly leaf, fixedly connected with fixed block on the bracing piece, the first arc of fixedly connected with on the fixed block, and articulated on the first arc have the second arc, is provided with the stop gear who is used for connecting the second arc in the fixed block. This application utensil is in order to reduce the possibility that the plastics holder drops, removes the plastics holder to first arc below earlier, rotates the second arc after that to through the fixed second arc of stop gear in the fixed block, the part of plastics holder this moment is located between first arc and the second arc, thereby can reduce the possibility that the plastics holder drops.
Description
Technical Field
The application relates to the technical field of stretching clamps, in particular to a special clamp for stretching a plastic retainer.
Background
The tensile strength test of the engineering plastic retainer for the cylindrical roller bearing comprises the steps of forcibly breaking an end ring of the retainer by a testing machine through a special fixture, and calculating the tensile strength by using the breaking force and the minimum section of the end ring.
The related art can refer to the Chinese utility model patent with the publication number of CN212340838U, wherein a special clamp for stretching a plastic retainer is disclosed, which comprises a clamp frame, a hollow bottom shell is vertically arranged in the clamp frame, two straight thread sleeves and a lead screw are symmetrically fixed at the bottom end of the hollow bottom shell, a bearing is fixed at the left side of the inner wall of the clamp frame, the left end of the lead screw is fixedly connected in the bearing, the right end of the lead screw penetrates through the clamp frame and extends to the outer side of the clamp frame to be fixedly connected with driven teeth, a movable plate is slidably connected at the top end of the hollow bottom shell, an inner threaded hole is formed on the front side wall of the movable plate, a limit screw penetrates through the front side wall of the hollow bottom shell, the end part of the limit screw is in threaded connection with the inner threaded hole, a hollow sliding cavity is formed at the top end of the clamp frame, a limit bolt penetrates through the hollow sliding cavity, and the end part of the limit bolt is in threaded connection with the top end of the movable plate, the same side wall of the hollow bottom shell and the movable plate is welded with a hanging hook.
With respect to the related art among the above, the inventors consider that the following drawbacks exist: when the two hollow bottom shells are driven to be away from each other, the plastic holder is connected with the two hollow shells only through the hanging hook, and the stability of connection between the plastic holder and the hanging hook is poor, so that the plastic holder can fall off from the hanging hook.
SUMMERY OF THE UTILITY MODEL
In order to reduce the possibility of falling off of the plastic retainer, the application provides a special clamp for stretching the plastic retainer.
The application provides a tensile special fixture of plastics holder adopts following technical scheme:
the utility model provides a tensile special fixture of plastics holder, includes hollow drain pan and fly leaf, hollow drain pan with equal threaded connection has the bracing piece on the fly leaf, fixedly connected with fixed block on the bracing piece, the first arc of fixedly connected with on the fixed block, it has the second arc to articulate on the first arc, be provided with the stop gear who is used for connecting the second arc in the fixed block.
Through adopting above-mentioned technical scheme, in order to reduce the possibility that the plastics holder drops, remove the plastics holder to first arc below earlier, rotate the second arc after that to through the fixed second arc of stop gear in the fixed block, the part of plastics holder is located between first arc and the second arc this moment, thereby can reduce the possibility that the plastics holder drops.
Preferably, a fixing groove is formed in the fixing block, the limiting mechanism comprises a ratchet bar, a limiting block and a first spring, and the ratchet bar is fixedly connected to the second arc-shaped plate; the limiting block is connected with the inner side wall of the fixing groove in a sliding mode, an inclined plane is arranged on one side, close to the second arc-shaped plate, of the limiting block, and the limiting block is matched with the ratchet strip; one end of the first spring is fixedly connected with the limiting block, and the other end of the limiting block is fixedly connected with the inner side wall of the fixing groove; and a driving assembly for driving the limiting block to move is further arranged in the fixing groove.
Through adopting above-mentioned technical scheme, at the in-process that rotates the second arc, the second arc drives the ratchet and removes, and the ratchet in-process can promote the stopper to remove to the one side of keeping away from the second arc, and when second arc stopped moving, first spring can promote the stopper and remove for the stopper cooperatees with the ratchet, thereby plays the effect of restriction ratchet moving direction, and then reaches the purpose of fixed second arc.
Preferably, the driving assembly comprises a pushing bar and a driving block, the driving block is fixedly connected with the limiting block, a through hole is formed in the inner side wall of the fixing groove, and the pushing bar penetrates through the through hole; an inclined plane is arranged on one side, close to the push bar, of the driving block, an inclined plane is arranged on one side, close to the driving block, of the push bar, and the inclined plane of the push bar is matched with the inclined plane of the driving block; the push bar is fixedly connected with a sliding sleeve, the inner side wall of the fixing groove is fixedly connected with a first guide rod, and the sliding sleeve is connected with the first guide rod in a sliding mode.
By adopting the technical scheme, in order to drive the limiting block to move, the pushing strip is pushed to move firstly, at the moment, the pushing strip can drive the limiting block to move under the interaction of the inclined surface of the pushing strip and the inclined surface of the driving block, and the driving block moves to drive the limiting block to move, so that the aim of driving the limiting block to move conveniently is fulfilled; meanwhile, under the action of the first guide rod and the sliding sleeve, the limiting block is convenient to guide.
Preferably, the first guide rod is sleeved with a second spring, one end of the second spring is fixedly connected with the sliding sleeve, and the other end of the second spring is fixedly connected with the inner side wall of the fixing groove.
Through adopting above-mentioned technical scheme, utilize the second spring, be convenient for make the slider reset, the slider resets and drives and pushes away the strip and reset.
Preferably, the end part of the first guide rod is fixedly connected with a limiting plate.
Through adopting above-mentioned technical scheme, utilize first limiting plate, can reduce the purpose that the sliding sleeve breaks away from first guide arm.
Preferably, a second guide rod is fixedly connected to the limiting block, a guide groove is formed in the inner side wall of the fixing groove, and the second guide rod is connected with the inner side wall of the guide groove in a sliding mode.
Through adopting above-mentioned technical scheme, utilize the second guide arm, can strengthen the stability of spacing block removal in-process.
Preferably, a first rubber strip is fixedly connected to the first arc-shaped plate, and a second rubber strip is fixedly connected to the second arc-shaped plate.
Through adopting above-mentioned technical scheme, utilize first rubber pad and second rubber pad, can reduce the rigid contact between first arc and second arc and the plastics holder.
Preferably, a third arc-shaped plate is fixedly connected to the first arc-shaped plate, and the second arc-shaped plate is abutted to the third arc-shaped plate through the second rubber strip.
Through adopting above-mentioned technical scheme, when utilizing first arc and second arc pulling plastics holder, can make the partial force of second arc act on the third arc to reduce stop gear damage's possibility.
In summary, the present application includes at least one of the following beneficial technical effects:
in order to reduce the possibility of falling of the plastic retainer, the plastic retainer is moved to the position below the first arc-shaped plate, then the second arc-shaped plate is rotated, the second arc-shaped plate is fixed through a limiting mechanism in the fixing block, and at the moment, part of the plastic retainer is positioned between the first arc-shaped plate and the second arc-shaped plate, so that the possibility of falling of the plastic retainer can be reduced;
when the second arc-shaped plate stops moving, the first spring can push the limiting block to move so that the limiting block is matched with the ratchet bar, and therefore the ratchet bar moving direction is limited, and the purpose of fixing the second arc-shaped plate is achieved;
when the plastic retainer is pulled by utilizing the first arc-shaped plate and the second arc-shaped plate, partial force of the second arc-shaped plate can act on the third arc-shaped plate, so that the possibility of damage of the limiting mechanism is reduced.
Drawings
Fig. 1 is a schematic overall structure diagram of an embodiment of the present application.
Fig. 2 is a schematic view of a connection structure of a first arc plate and a second arc plate of an image in an embodiment of the present application.
Fig. 3 is a cross-sectional view of a fixing block and a third arc plate in an embodiment of the present application.
Description of reference numerals: 1. a hollow bottom shell; 11. a movable plate; 12. a support bar; 2. a fixed block; 21. fixing grooves; 22. a through hole; 23. a guide groove; 3. a first arc-shaped plate; 31. a first rubber strip; 32. a third arc-shaped plate; 4. a second arc-shaped plate; 41. a second rubber strip; 5. a limiting mechanism; 51. a ratchet bar; 52. a limiting block; 53. a first spring; 54. a second guide bar; 6. a drive assembly; 61. pushing the strip; 62. a drive block; 63. a first guide bar; 64. a sliding sleeve; 65. a second spring; 66. a limiting plate; 7. a clamp frame; 71. a threaded sleeve; 72. a double-headed motor; 73. a first bevel gear; 74. a second bevel gear; 75. two-way threaded rod.
Detailed Description
The present application is described in further detail below with reference to figures 1-3.
The embodiment of the application discloses tensile special fixture of plastics holder. Referring to fig. 1, the clamp special for stretching the plastic retainer comprises a clamp frame 7, a threaded sleeve 71, two-way threaded rods 75, two-way motors 72, a first bevel gear 73, a second bevel gear 74, a hollow bottom shell 1 and a movable plate 11, wherein the number of the two-way threaded rods 75 is two, the axial lines of the two-way threaded rods 75 are parallel to each other, the end parts of the two-way threaded rods 75 are rotatably connected with the side wall of the clamp frame 7, and the end parts of the two-way threaded rods 75 penetrate through the clamp frame 7. There are two threaded sleeves 71, and each threaded sleeve 71 is simultaneously threaded by two-way threaded rods 75. Two second bevel gears 74 are provided, and the two second bevel gears 74 are fixedly connected with the two bidirectional threaded rods 75 in a one-to-one correspondence manner. The double-headed motor 72 is fixedly mounted on the clamp frame 7, the two first bevel gears 73 are fixedly connected with two output shafts of the double-headed motor 72 in a one-to-one correspondence manner, and the two first bevel gears 73 are meshed with the two second bevel gears 74 in a one-to-one correspondence manner. The number of the hollow bottom cases 1 is two, the two hollow bottom cases 1 are fixedly connected to the two threaded sleeves 71 in a one-to-one correspondence manner, the number of the movable plates 11 is two, the two movable plates 11 are slidably connected to the two hollow bottom cases 1 in a one-to-one correspondence manner, and the movable plates 11 are relatively fixed to the hollow bottom cases 1 through bolts.
As shown in fig. 1 and 2, support rods 12 are screwed to the two hollow bottom cases 1 and the two movable plates 11. Fixedly connected with fixed block 2 on bracing piece 12, two first arcs 3 of fixedly connected with on the fixed block 2, two first arcs 3 parallel arrangement. A third arc-shaped plate 32 is simultaneously fixedly connected between the two first arc-shaped plates 3. The end parts of the two first arc-shaped plates 3 far away from the fixed block 2 are simultaneously hinged with a second arc-shaped plate 4, the other end of the second arc-shaped plate 4 is matched with the fixed block 2, and a limiting mechanism 5 used for connecting the second arc-shaped plate 4 is arranged in the fixed block 2.
As shown in fig. 2 and fig. 3, a first rubber strip 31 is also fixedly connected between the two first arc-shaped plates 3, and the first rubber strip 31 is also fixedly connected with a third arc-shaped plate 32. A second rubber strip 41 is fixedly connected to one side of the second arc-shaped plate 4 close to the first arc-shaped plate 3. By providing the first rubber strip 31 and the second rubber strip 41, the rigid contact between the first arc-shaped plate 3 and the second arc-shaped plate 4 and the plastic holder can be reduced.
As shown in fig. 2 and 3, a fixing groove 21 is formed on a side of the fixing block 2 away from the supporting rod 12, and a guide groove 23 is formed on a side wall of the fixing groove 21 close to the supporting rod 12. The limiting mechanism 5 comprises a ratchet 51, a limiting block 52, a first spring 53 and a second guide rod 54, wherein the ratchet 51 is fixedly connected to the second arc-shaped plate 4. The limiting block 52 is slidably connected to the inner side wall of the fixing groove 21, an inclined surface is formed on one side of the limiting block 52 close to the second arc-shaped plate 4, and the limiting block 52 is matched with the ratchet strip 51. The second guiding rod 54 is fixedly connected to a side of the limiting block 52 far away from the second arc-shaped plate 4, and the second guiding rod 54 is slidably connected with the guiding groove 23. One end of the first spring 53 is fixedly connected to the stopper 52, and the other end of the second spring 65 is fixedly connected to the inner sidewall of the fixing groove 21.
In the process of rotating the second arc-shaped plate 4 to be matched with the fixed block 2, the second arc-shaped plate 4 drives the ratchet strip 51 to move, and the ratchet strip 51 can push the limiting block 52 to move under the action of the inclined surface of the limiting block 52 in the moving process of the ratchet strip 51; when the second arc-shaped plate 4 stops rotating, the first spring 53 pushes the stopper 52 to cooperate with the ratchet 51, thereby limiting the moving direction of the ratchet 51 and further achieving the purpose of fixing the second arc-shaped plate 4.
As shown in fig. 2 and 3, a through hole 22 is formed in a bottom side wall of the fixing groove 21, a driving assembly 6 for driving the limiting block 52 to move is further disposed in the fixing groove 21, the driving assembly 6 includes a push bar 61, a driving block 62, a first guide rod 63, a sliding sleeve 64 and a second spring 65, the push bar 61 is disposed through the through hole 22, and the push bar 61 is slidably connected with an inner wall of the through hole 22. The driving block 62 is fixedly connected to the limiting block 52, an inclined surface is arranged on the bottom side of the driving block 62, an inclined surface is arranged on the top side of the push bar 61, and the inclined surface of the driving block 62 is matched with the inclined surface of the push bar 61. The first guide bar 63 is fixedly connected to the inner side wall of the fixing groove 21, the sliding sleeve 64 is fixedly connected to the pushing bar 61, the sliding sleeve 64 is sleeved on the first guide bar 63, and the sliding sleeve 64 is slidably connected with the first guide bar 63. The second spring 65 is sleeved on the first guide rod 63, one end of the second spring 65 is fixedly connected with the sliding sleeve 64, and the other end of the second spring 65 is fixedly connected with the inner side wall of the fixing groove 21.
When the limiting function of the limiting block 52 and the ratchet 51 needs to be removed, the pushing bar 61 is pushed to move, under the interaction of the inclined surface of the pushing bar 61 and the inclined surface of the driving block 62, the pushing bar 61 can push the driving block 62 to move, and the driving block 62 moves to drive the limiting block 52 to move; meanwhile, the first guide rod 63 and the sliding sleeve 64 are arranged to facilitate guiding of the push bar 61, and the second spring 65 is arranged to facilitate resetting of the push bar 61.
As shown in fig. 3, a cylindrical stopper 66 is fixedly connected to the tip of the first guide bar 63, and the stopper 66 is provided to reduce the possibility that the slide bush 64 is disengaged from the first guide bar 63.
The implementation principle of the special clamp for stretching the plastic retainer in the embodiment of the application is as follows: in order to reduce the possibility of falling off of the plastic retainer, the plastic retainer is firstly moved below the first arc-shaped plate 3, then the second arc-shaped plate 4 is rotated, the second arc-shaped plate 4 is fixed through the limiting mechanism 5 in the fixing block 2, and at the moment, the part of the plastic retainer is positioned between the first arc-shaped plate 3 and the second arc-shaped plate 4, so that the possibility of falling off of the plastic retainer can be reduced.
The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.
Claims (8)
1. The utility model provides a tensile special fixture of plastics holder, includes hollow drain pan (1) and fly leaf (11), its characterized in that: the hollow bottom shell (1) and equal threaded connection has bracing piece (12) on fly leaf (11), fixedly connected with fixed block (2) on bracing piece (12), first arc (3) of fixedly connected with on fixed block (2), it has second arc (4) to articulate on first arc (3), be provided with stop gear (5) that are used for connecting second arc (4) in fixed block (2).
2. The special clamp for stretching the plastic retainer according to claim 1, wherein: a fixing groove (21) is formed in the fixing block (2), the limiting mechanism (5) comprises a ratchet bar (51), a limiting block (52) and a first spring (53), and the ratchet bar (51) is fixedly connected to the second arc-shaped plate (4); the limiting block (52) is connected with the inner side wall of the fixing groove (21) in a sliding mode, an inclined surface is arranged on one side, close to the second arc-shaped plate (4), of the limiting block (52), and the limiting block (52) is matched with the ratchet strip (51); one end of the first spring (53) is fixedly connected with the limiting block (52), and the other end of the limiting block (52) is fixedly connected with the inner side wall of the fixing groove (21); and a driving assembly (6) for driving the limiting block (52) to move is further arranged in the fixing groove (21).
3. The special clamp for stretching the plastic retainer according to claim 2, wherein: the driving assembly (6) comprises a pushing strip (61) and a driving block (62), the driving block (62) is fixedly connected with the limiting block (52), a through hole (22) is formed in the inner side wall of the fixing groove (21), and the pushing strip (61) penetrates through the through hole (22); an inclined plane is arranged on one side, close to the pushing bar (61), of the driving block (62), an inclined plane is arranged on one side, close to the driving block (62), of the pushing bar (61), and the inclined plane of the pushing bar (61) is matched with the inclined plane of the driving block (62); push away fixedly connected with sliding sleeve (64) on strip (61), fixedly connected with first guide arm (63) on the inside wall of fixed slot (21), sliding sleeve (64) with first guide arm (63) sliding connection.
4. The special clamp for stretching the plastic retainer according to claim 3, wherein: the second spring (65) is sleeved on the first guide rod (63), one end of the second spring (65) is fixedly connected with the sliding sleeve (64), and the other end of the second spring (65) is fixedly connected with the inner side wall of the fixing groove (21).
5. The special clamp for stretching the plastic retainer according to claim 3, wherein: the end part of the first guide rod (63) is fixedly connected with a limiting plate (66).
6. The special clamp for stretching the plastic retainer according to claim 2, wherein: the limiting block (52) is fixedly connected with a second guide rod (54), the inner side wall of the fixing groove (21) is provided with a guide groove (23), and the second guide rod (54) is in sliding connection with the inner side wall of the guide groove (23).
7. The special clamp for stretching the plastic retainer according to claim 2, wherein: fixedly connected with first rubber strip (31) on first arc (3), fixedly connected with second rubber strip (41) on second arc (4).
8. The special clamp for stretching the plastic retainer according to claim 7, wherein: and a third arc-shaped plate (32) is fixedly connected to the first arc-shaped plate (3), and the second arc-shaped plate (4) is abutted to the third arc-shaped plate (32) through a second rubber strip (41).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123434761.2U CN216483913U (en) | 2021-12-30 | 2021-12-30 | Special clamp for stretching plastic retainer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123434761.2U CN216483913U (en) | 2021-12-30 | 2021-12-30 | Special clamp for stretching plastic retainer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216483913U true CN216483913U (en) | 2022-05-10 |
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ID=81429257
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202123434761.2U Active CN216483913U (en) | 2021-12-30 | 2021-12-30 | Special clamp for stretching plastic retainer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216483913U (en) |
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2021
- 2021-12-30 CN CN202123434761.2U patent/CN216483913U/en active Active
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