A quick-switching fixture for end pick-up

Abstract

The present invention relates to the field of fixtures, and specifically to an end picker quick-switching fixture, comprising an upper cover plate and a lower cover plate, wherein the upper cover plate is located at the upper end of the lower cover plate, a threaded pad yielding portion is provided on the upper surface of the upper cover plate, the threaded pad is provided in the threaded pad yielding portion, an upper polygonal groove portion is provided in the middle of the lower end of the upper cover plate, an upper connecting pin hole is provided at the end of the upper polygonal groove portion away from the threaded pad, a lower polygonal groove portion matching the upper polygonal groove portion is provided at the middle position of the upper end of the lower cover plate, the lower cover plate is located at the side of the upper cover plate away from the threaded pad and is provided with a connecting portion boss, a lower connecting pin hole corresponding to the upper connecting pin hole is provided on the connecting portion boss, and the upper connecting pin hole and the lower connecting pin hole are connected by a connecting pin. The invention realizes the rapid locking of the fixture without tools, and the replacement of the holding component is convenient and fast.

Description

Technical Field

[0001] The invention relates to the field of fixtures, and in particular to a fast-switching fixture for an end picker. Background Art

[0002] Round pipes are a common component, and corresponding clamps are mostly used in the processing of round pipes. However, these clamps are designed to be contoured when used, and very precise contour jaws are required to clamp round pipes. If the contour jaws are too large, the round pipe is easy to slide relatively in the jaws, affecting the processing of the pipe. If the contour jaws are too small, the round pipe is easy to be deformed by clamping. Even if the contour jaws are of qualified size, multiple screws are required to fix the round pipe, and workers need to use wrenches to install and remove the screws, resulting in slow replacement of round pipes and low efficiency. At the same time, frequent use of wrenches to install and remove screws will damage the threads and reduce the service life of the clamps.

[0003] Chinese patent CN201920743519.7 discloses a round tube fixing clamp for a round tube cutting machine, specifically discloses a round tube fixing clamp for a round tube cutting machine, the tightness adjustment and clamping of which are both made by ordinary snap-on clamps or bolt-adjustable clamps, and the process of clamping and loosening the round tube each time is relatively cumbersome, which affects the final cutting efficiency. The present invention also includes a pedal, two clamping units and two driving units, the two clamping units are installed side by side on the upper surface of one end of the base along the width direction of the base, the pedal is arranged on the surface of the other end of the base, the two driving units are installed side by side in the base along the width direction of the base, the execution end of each driving unit is connected to the clamping unit, and the driving end of each driving unit is connected to the lower surface of the pedal. The above invention patent still does not overcome the problem of rapid wear of the bolts, and the service life of the entire clamp is short. Summary of the invention

[0004] In order to solve the deficiencies in the prior art, the present invention provides a round tube fixing clamp for a round tube cutting machine, which can fix and clamp the round tube while avoiding the wear of the bolts, facilitating the clamping of parts and extending the service life of the entire clamp.

[0005] The technical solution of the present invention is:

[0006] The present invention provides an end picker quick switching fixture, comprising an upper cover plate and a lower cover plate, the upper cover plate being located at the upper end of the lower cover plate, the upper surface of the upper cover plate being provided with a threaded pad yielding portion, the threaded pad being arranged in the threaded pad yielding portion, an upper polygonal groove body portion being provided in the middle part of the lower end of the upper cover plate, an upper connecting pin hole being provided at the end of the upper polygonal groove body portion away from the threaded pad, a lower polygonal groove body portion matching the upper polygonal groove body portion being provided at the middle position of the upper end of the lower cover plate, a connecting portion boss being provided on the side of the upper cover plate away from the threaded pad, a lower connecting pin hole corresponding to the upper connecting pin hole being provided on the connecting portion boss, the upper connecting pin hole and the lower connecting pin hole being connected by a connecting pin, a seat pipe clamp being provided on the other side of the lower cover plate, the seat pipe clamp passing through the lower cover plate and being connected to the threaded pad.

[0007] Preferably, the upper polygonal trough body portion and the lower polygonal trough body portion form a regular polygon.

[0008] Preferably, the regular polygon is one of a regular triangle, a regular quadrilateral, a regular pentagon, a regular hexagon, a regular octagon and a regular icosagon.

[0009] Preferably, the seat tube clamp includes a fixing part, a bolt part and a clamping part, the fixing part is fixed in the threaded pad, one end of the bolt part is connected to the fixing part through a thread, and one end of the clamping part is connected to the other end of the bolt part through a rotating shaft.

[0010] Preferably, an eccentric hole is provided at one end of the pressing portion, and the rotating shaft is located in the eccentric hole.

[0011] Preferably, the diameter of the connecting pin is slightly smaller than the diameter of the lower connecting pin hole, and both ends of the connecting pin are provided with a clamping groove, and a clamping spring is provided in the clamping groove.

[0012] Preferably, one end of the bolt portion close to the pressing portion is sleeved with a rubber pad.

[0013] When the invention works, first, the connecting pin is passed through the upper connecting pin hole and the lower connecting pin hole in sequence, and then one end of the fixing portion is fixed in the threaded pad, the clamping portion is rotated to adjust the clamping portion to an appropriate position, and then a circular tube is placed between the upper polygonal trough body portion and the lower polygonal trough body portion. A worker manually presses one end of the clamping portion away from the rotating shaft to rotate the clamping portion around the rotating shaft, thereby locking the upper cover plate and the lower cover plate, and then fixing the circular tube between the upper cover plate and the lower cover plate.

[0014] The beneficial effects achieved by the present invention are:

[0015] The present invention realizes stable clamping of the circular tube by providing an upper polygonal groove body portion and a lower polygonal groove body portion, thereby reducing the requirement on the size of the clamping position of the clamp; by providing the seat tube clamp, the upper cover plate and the lower cover plate are buckled together by rotating the clamping portion to clamp the circular tube, thereby avoiding locking the upper cover plate and the lower cover plate by screws, reducing the wear rate of the thread, and greatly improving the service life of the entire clamp. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is an exploded view of the overall structure of the present invention, used to show the upper cover plate and the lower cover plate.

[0017] Figure 2 It is a schematic diagram of the structure of the seat tube clamp.

[0018] In the figure, 1, upper cover plate; 2, threaded gasket hole; 3, threaded gasket; 4, upper polygonal groove body; 5, upper connecting pin hole; 6, lower cover plate; 7, lower polygonal groove body; 8, connecting portion boss; 9, lower connecting pin hole; 10, connecting pin; 12, fixing portion; 13, bolt portion; 14, clamping portion; 15, rotating shaft; 16, eccentric hole; 17, rubber pad. DETAILED DESCRIPTION

[0019] To facilitate those skilled in the art to understand the present invention, specific implementations of the present invention are described below with reference to the accompanying drawings.

[0020] like Figures 1-2As shown, the present invention provides an end picker quick switching fixture, including an upper cover plate 1 and a lower cover plate 6, the upper cover plate 1 is located at the upper end of the lower cover plate 6, and the upper surface of the upper cover plate 1 is provided with a threaded pad 3 yielding portion, by setting the threaded pad yielding portion 2, the threaded pad 3 can be installed in the threaded pad yielding portion 2, so as to achieve the fixing portion 12 is fixed on the threaded pad 3, an upper polygonal groove body portion 4 is provided in the middle of the lower end of the upper cover plate 1, the upper polygonal groove body portion 4 and the lower polygonal groove body portion 7 are used to fix the circular tube, an upper connecting pin hole 5 is provided at one end of the upper polygonal groove body portion 4 away from the threaded pad 3, the upper connecting pin hole 5 and the lower connecting pin hole 9 are connected together by the connecting pin 10, so that the upper cover plate 1 and the lower cover plate 6 can rotate around the connecting pin 10, and the lower cover plate 6 is provided with the lower connecting pin hole 9 matching the upper polygonal groove body portion 4 in the middle position of the upper end. A polygonal groove body portion 7, the lower cover plate 6 is located on the side of the upper cover plate 1 away from the threaded pad 3 and is provided with a connecting portion boss 8. When the upper cover plate 1 and the lower cover plate 6 are connected, the connecting portion boss 8 is located between the upper connecting pin holes 5, and the lower connecting pin holes 9 penetrate the connecting portion boss 8 so that the connecting pin 10 can connect the upper cover plate 1 and the lower cover plate 6. The upper connecting pin hole 5 and the lower connecting pin hole 9 are connected by a connecting pin 10. A seat pipe clamp is provided on the other side of the lower cover plate 6. The seat pipe clamp passes through the lower cover plate 6 and is connected to the threaded pad 3. By providing the seat pipe clamp, when it is necessary to lock the upper cover plate 1 and the lower cover plate 6, the end of the clamping portion 14 away from the rotating shaft 15 can be manually pressed to achieve quick locking of the upper cover plate 1 and the lower cover plate 6. When it is necessary to separate the upper cover plate 1 and the lower cover plate 6, the clamping portion 14 can be rotated in the opposite direction.

[0021] In this embodiment, the upper polygonal groove body 4 and the lower polygonal groove body 7 form a regular polygon, and each side of the regular polygon is circumscribed with the outer surface of the circular tube. At this time, the force exerted by the upper polygonal groove body 4 on the circular tube is directed toward the center of the circular tube, thereby achieving stable clamping of the circular tube. Generally, the diameter of the inscribed circle of the regular polygon is slightly smaller than the diameter of the circular tube. At this time, the regular polygon is in point contact with the circular tube, and the circular tube can be deformed in the place where it is not in contact with the regular polygonal groove body, so that the regular polygonal groove body can not only firmly fix the circular tube, but also reduce the requirements for the dimensional accuracy of the regular polygonal groove body. In the traditional circular profiling groove, since the profiling groove and the circular tube are in surface contact, the deformation of the circular tube is small, which means that the accuracy of the profiling groove is required to be higher.

[0022] In this embodiment, the regular polygon is one of a regular triangle, a regular quadrilateral, a regular pentagon, a regular hexagon, a regular octagon and a regular icosagon, but is not limited to these.

[0023] In this embodiment, the seat tube clamp includes a fixing portion 12, a bolt portion 13 and a clamping portion 14. The fixing portion 12 is fixed in the threaded gasket 3, one end of the bolt portion 13 is connected to the fixing portion 12 through a thread, and one end of the clamping portion 14 is connected to the other end of the bolt portion 13 through a rotating shaft 15. By providing the clamping portion 14, the upper cover plate 1 and the lower cover plate 6 can be quickly locked and released, which improves the replacement rate of the circular tube. At the same time, there is no need to tighten the bolts when locking, which reduces the wear rate of the bolts and improves the service life of the entire clamp.

[0024] In this embodiment, an eccentric hole 16 is provided at one end of the clamping portion 14, and the rotating shaft 15 is located in the eccentric hole 16. When the clamping portion 14 rotates around the rotating shaft 15, the eccentric hole 16 serves to fine-tune the distance between the upper cover plate 1 and the lower cover plate 6, thereby facilitating locking the upper cover plate 1 and the lower cover plate 6.

[0025] In this embodiment, the diameter of the connecting pin 10 is slightly smaller than the diameter of the lower connecting pin hole 9, so that the connecting pin 10 can be inserted into the lower connecting pin hole 9 and the upper connecting pin hole 5, and the two ends of the connecting pin 10 are provided with a groove, and the groove is provided with a retaining spring, so as to fix the connecting pin 10 in the upper connecting pin hole 5 and the lower connecting pin hole 9. By providing the retaining spring, the connecting pin 10 is prevented from slipping out of the upper connecting pin hole 5 and the lower connecting pin hole 9.

[0026] In this embodiment, a rubber pad 17 is sleeved on one end of the bolt portion 13 close to the pressing portion 14 , and the rubber pad 17 is used to buffer the pressure between the pressing portion 14 and the lower cover plate 6 to facilitate the pressing portion 14 to rotate around the rotating shaft 15 .

[0027] When the invention works, first, the connecting pin 10 is passed through the upper connecting pin hole 5 and the lower connecting pin hole 9 in sequence, and then one end of the fixing portion 12 is fixed in the threaded pad 3, the clamping portion 14 is rotated, and the clamping portion 14 is adjusted to an appropriate position, and then the circular tube is placed between the upper polygonal trough body portion 4 and the lower polygonal trough body portion. A worker manually presses one end of the clamping portion 14 away from the rotating shaft 15 to rotate the clamping portion 14 around the rotating shaft 15, thereby locking the upper cover plate 1 and the lower cover plate 6, and then fixing the circular tube between the upper cover plate 1 and the lower cover plate 6.

[0028] The beneficial effects achieved by the present invention are:

[0029] The present invention achieves stable clamping of the circular tube by providing an upper polygonal groove body portion 4 and a lower polygonal groove body portion 7, thereby reducing the requirements on the size of the clamping position of the clamp; by providing the pipe clamp, the upper cover plate 1 and the lower cover plate 6 are fastened together by rotating the clamping portion 14 to clamp the circular tube, thereby avoiding locking the upper cover plate 1 and the lower cover plate 6 by screws, reducing the wear rate of the thread, and greatly improving the service life of the entire clamp.

[0030] The above-described embodiments of the present invention do not constitute a limitation on the protection scope of the present invention. Any modification, equivalent substitution and improvement made within the spirit and principle of the present invention shall be included in the protection scope of the claims of the present invention.

Claims

1. A quick-switching fixture for an end pick-up, characterized in that: The invention comprises an upper cover plate (1) and a lower cover plate (6), wherein the upper cover plate (1) is located at the upper end of the lower cover plate (6), the upper surface of the upper cover plate (1) is provided with a threaded pad (3) yielding portion, the threaded pad (3) is arranged in the threaded pad (3) yielding portion, an upper polygonal groove body portion (4) is arranged in the middle of the lower end of the upper cover plate (1), an upper connecting pin hole (5) is arranged at one end of the upper polygonal groove body portion (4) away from the threaded pad (3), and a threaded pad (3) is arranged in the middle of the upper end of the lower cover plate (6) to be connected to the upper polygonal groove body portion. (4) a matching lower polygonal groove body (7), the lower cover plate (6) is provided with a connecting portion boss (8) on the side of the upper cover plate (1) away from the threaded pad (3), the connecting portion boss (8) is provided with a lower connecting pin hole (9) corresponding to the upper connecting pin hole (5), the upper connecting pin hole (5) and the lower connecting pin hole (9) are connected by a connecting pin (10), and the other side of the lower cover plate (6) is provided with a seat pipe clamp, the seat pipe clamp passes through the lower cover plate (6) and is connected to the threaded pad (3); The upper polygonal trough body portion (4) and the lower polygonal trough body portion (7) form a regular polygon; The seat tube clamp comprises a fixing portion (12), a bolt portion (13) and a clamping portion (14); the fixing portion (12) is fixed in the threaded pad (3); one end of the bolt portion (13) is connected to the fixing portion (12) via a thread; and one end of the clamping portion (14) is connected to the other end of the bolt portion (13) via a rotating shaft (15).

2. The end tool quick-switching fixture according to claim 1, characterized in that: The regular polygon is one of a regular triangle, a regular quadrilateral, a regular pentagon, a regular hexagon, a regular octagon and a regular icosagon.

3. The end tool quick-switching fixture according to claim 1, characterized in that: An eccentric hole (16) is provided at one end of the pressing portion (14), and the rotating shaft (15) is located in the eccentric hole (16).

4. The end tool quick-switching fixture according to claim 1, characterized in that: The diameter of the connecting pin (10) is slightly smaller than the diameter of the lower connecting pin hole (9), and both ends of the connecting pin (10) are provided with clamping grooves, and the clamping grooves are provided with clamping springs.

5. The end picker quick-switching fixture according to claim 1, characterized in that: One end of the bolt portion (13) close to the pressing portion (14) is sleeved with a rubber pad (17).

Images