Internal expansion device for producing and positioning wear-resistant sheet

Abstract

The utility model provides an internal expansion device for wear plate production positioning, which comprises a base, an air cylinder is arranged on one side of the base, a second flange component is fixedly mounted on the outer wall of one side of the base, a fixing seat and a positioning seat are sequentially and fixedly mounted on the outer wall of the other side of the base, and an expansion core is arranged on the outer side of the positioning seat. A push rod is arranged on one side of the expansion core, and an insertion hole is formed in the middle of the outer wall of the other end of the expansion core. The outer wall of the other side of the positioning seat is fixedly provided with a plurality of convex blocks with equal angles, the outer side of the positioning seat is sleeved with the internal expansion chuck, the locking rod is inserted in the middle of the internal expansion chuck, the locking rod can be pulled out in a rotating mode, then the internal expansion chuck is replaced, and then wear-resisting pieces with different inner diameters can be fixed and locked. And the internal expansion chuck is formed by fixedly connecting a plurality of rubber blocks and push blocks in a staggered manner, and a plurality of convex blocks are matched with the rubber blocks, so that the internal expansion chuck can be glidingly sleeved or glidingly pulled out of the positioning seat conveniently.

Description

Technical Field

[0001] The utility model relates to the technical field of wear-resistant sheet production, in particular to an internal expansion device for production positioning of wear-resistant sheets. Background Art

[0002] Wear-resistant sheets are tools that use diamond or other abrasive grains to grind samples. They can be processed into samples of various shapes and sizes. Wear-resistant sheets are widely used and can be applied to the grinding of various materials such as metals, ceramics, plastics, glass, and semiconductors. The production and processing of wear-resistant sheets cannot be separated from the use of internal expansion clamps to fix them. Internal expansion clamps are a common type of clamp. When used, the clamp body is inserted into the clamped workpiece. The outer surface of the workpiece is clamped by rotating the tensioning screw, generating resistance to achieve the fixing and clamping effect. It is used to fix the workpiece and ensure its position and posture remain unchanged. It has been widely used in fields such as machinery manufacturing, automobile manufacturing, aerospace, and mold manufacturing. It can improve processing efficiency, ensure processing accuracy and quality, and provide convenience and benefits for production and manufacturing.

[0003] After searching, the Chinese patent publication number CN208681327U3 discloses an internal expansion device with good positioning effect for the production of wear-resistant sheets, including a base, a first support rod is provided on the top outer wall of the base, and a discharge pipe is provided on the top outer wall of the first support rod, four second support rods are provided on the top outer wall of the base, and the top outer walls of the four second support rods are each provided with a second bearing seat, a No. 1 rotating shaft is fixed to the outer wall on the opposite side of the second bearing seat through a bearing, and the outer walls of the two No. 1 rotating shafts are both sleeved with conveying rollers, and the outer walls of the two conveying rollers are sleeved with conveyor belts, and a clamping frame is attached to the outer wall of the conveyor belt, and a clamping ring is provided on the outer wall of one side of the clamping frame, and the inner wall of the clamping ring clamps a circular wear-resistant sheet. The utility model is capable of positioning and polishing the produced circular wear-resistant sheets by setting a No. 1 motor, a No. 2 rotating shaft and a circular steel plate, and by rotating and supporting the circular steel plate, thereby improving product quality.

[0004] Aiming at the problem that the above-mentioned technology cannot accurately fix the wear-resistant sheets with large differences in inner diameter, an internal expansion device for production positioning of wear-resistant sheets is proposed. Utility Model Content

[0005] In view of this, the embodiments of the present invention hope to provide an internal expansion device for production and positioning of wear-resistant plates to solve or alleviate the technical problems existing in the prior art and at least provide a beneficial option.

[0006] The technical solution of the embodiment of the utility model is achieved as follows: it includes a base, a cylinder is provided on one side of the base, a second flange assembly is fixedly installed on the outer wall of one side of the base, a fixing seat and a positioning seat are fixedly installed on the outer wall of the other side of the base in sequence, an expansion core is provided on the outer side of the positioning seat, and a positioning groove is provided in the middle of the inner core, a push rod is provided on one side of the expansion core, and a socket is provided in the middle of the outer wall of the other end of the expansion core, a plurality of equi-angled protrusions are fixedly installed on the outer wall of the other side of the positioning seat, an inner expansion chuck is sleeved on the outer side of the positioning seat, and a locking rod is inserted in the middle of the inner expansion chuck, a wear-resistant plate is sleeved on the outer side of the circumference of the inner expansion chuck, the locking rod can be rotated and pulled out, and then the inner expansion chuck can be replaced, and then the wear-resistant plates with different inner diameters can be fixed and locked.

[0007] In some embodiments, a first flange assembly is provided between the movable end of the cylinder and one side of the push rod, and a third flange assembly is provided between the other side of the push rod and one side of the expanding core, thereby enabling the movable end of the cylinder to transmit power to push the expanding core.

[0008] In some embodiments, the positioning groove and the insertion hole are connected, and the diameter of the positioning groove is larger than the diameter of the insertion hole.

[0009] In some embodiments, the internal expansion chuck is composed of a plurality of rubber blocks and push blocks that are staggered and fixedly connected, and a plurality of protrusions match the rubber blocks.

[0010] In some embodiments, a plurality of guide rods with equal angles are fixedly installed between the inner walls on both sides of the positioning groove, and a threaded sleeve is slidably arranged between the plurality of guide rods. The diameter of the threaded sleeve is smaller than the diameter of the socket, so that the threaded sleeve can be moved from the positioning groove to the inside of the socket, which helps to accelerate the docking of the locking rod and the threaded sleeve.

[0011] In some embodiments, a plurality of fixed sleeves with equal angles are fixedly installed on one side of the outer wall of the threaded sleeve, and each fixed sleeve is slidably connected to the guide rod, and a support spring is connected to the outer side of the circumference of each guide rod, and each group of support springs is located between the inner wall of one side of the positioning groove and the fixed sleeve, so that the multiple support springs can effectively push the fixed sleeve to move along the guide rod and push the threaded sleeve close to the socket, which helps to rotate the locking rod and the threaded sleeve. Then, under the push of the cylinder, the push rod pushes the expansion core to move and the inner expansion chuck locks the wear-resistant plate. Under the retraction action of the multiple support springs and the condition that the length of the inner expansion chuck remains unchanged, the locking rod does not move with the movement of the expansion core.

[0012] In some embodiments, a thread is provided on one circumferential side of the locking rod, and the circumferential side of the locking rod is rotatably connected to the threaded sleeve. The outer wall of the other end of the locking rod is fixedly connected to a polygonal block, and the polygonal block is located on the outside of the inner expansion chuck.

[0013] The embodiment of the present invention has the following advantages due to the adoption of the above technical solution:

[0014] 1. An internal expansion device for positioning the production of wear-resistant sheets, wherein a plurality of equi-angled protrusions are fixedly installed on the outer wall of the other side of the positioning seat, an internal expansion chuck is sleeved on the outer side of the positioning seat, and a locking rod is inserted in the middle of the internal expansion chuck. The locking rod can be rotated and pulled out, and then the internal expansion chuck can be replaced, thereby fixing and locking wear-resistant sheets with different inner diameters. The internal expansion chuck is composed of a plurality of rubber blocks and push blocks that are staggered and fixedly connected, and a plurality of protrusions match the rubber blocks, which facilitates the sliding sleeve or sliding withdrawal of the internal expansion chuck on the positioning seat.

[0015] 2. An internal expansion device for positioning the production of wear-resistant sheets, wherein a plurality of guide rods with equal angles, support springs, and threaded sleeves are slidably arranged inside the positioning groove, so that the plurality of support springs effectively push the fixed sleeve to move along the guide rod and push the threaded sleeve close to the insertion hole, which helps the locking rod and the threaded sleeve to rotate and connect. Then, under the push of the cylinder, the push rod pushes the expansion core to move so that the internal expansion chuck locks the wear-resistant sheet, and the locking rod does not move with the movement of the expansion core under the retraction action of the plurality of support springs and the condition that the length of the internal expansion chuck remains unchanged.

[0016] The above summary is for the purpose of description only and is not intended to be limiting in any way. In addition to the illustrative aspects, embodiments and features described above, further aspects, embodiments and features of the present invention will be readily apparent by reference to the accompanying drawings and the following detailed description. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or technical descriptions. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0018] Figure 1 It is a structural diagram of the utility model;

[0019] Figure 2 It is a left-side structural diagram of the utility model;

[0020] Figure 3 This is a structural diagram of the positioning seat of the utility model;

[0021] Figure 4 This is a core expansion structure diagram of the utility model;

[0022] Figure 5 This is a structural diagram of the threaded sleeve of the present utility model.

[0023] Reference numerals:

[0024] 1. Cylinder; 2. First flange assembly; 3. Push rod; 4. Second flange assembly; 5. Wear plate; 6. Locking rod; 7. Base; 8. Fixed seat; 9. Positioning seat; 10. Internal expansion chuck; 11. Bump; 12. Third flange assembly; 13. Expanding core; 14. Positioning groove; 15. Thread; 16. Threaded sleeve; 17. Fixed sleeve; 18. Guide rod; 19. Support spring; 20. Socket. DETAILED DESCRIPTION

[0025] Hereinafter, only certain exemplary embodiments are briefly described. As will be appreciated by those skilled in the art, the described embodiments may be modified in various ways without departing from the spirit or scope of the present invention. Therefore, the drawings and description are to be regarded as illustrative in nature and not restrictive.

[0026] The embodiments of the present invention are described in detail below with reference to the accompanying drawings.

[0027] like Figure 1-5 As shown, an internal expansion device for positioning the production of wear-resistant plates includes a base 7, a cylinder 1 is provided on one side of the base 7, a second flange assembly 4 is fixedly installed on the outer wall of one side of the base 7, a fixing seat 8 and a positioning seat 9 are fixedly installed on the outer wall of the other side of the base 7 in sequence, an expansion core 13 is provided on the outer side of the positioning seat 9, and a positioning groove 14 is provided in the middle of the inner core 13, a push rod 3 is provided on one side of the expansion core 13, and a socket 20 is provided in the middle of the outer wall of the other end of the expansion core 13, a plurality of equi-angled protrusions 11 are fixedly installed on the outer wall of the other side of the positioning seat 9, an internal expansion chuck 10 is sleeved on the outer side of the positioning seat 9, and a locking rod 6 is inserted in the middle of the internal expansion chuck 10, a wear-resistant plate 5 is sleeved on the outer side of the circumference of the internal expansion chuck 10, the locking rod 6 can be rotated and pulled out, and then the internal expansion chuck 10 can be replaced, so as to fix and lock the wear-resistant plates 5 with different inner diameters.

[0028] In this embodiment, a first flange assembly 2 is provided between the movable end of the cylinder 1 and one side of the push rod 3, and a third flange assembly 12 is provided between the other side of the push rod 3 and one side of the expansion core 13, so that the movable end of the cylinder 1 drives the expansion core 13.

[0029] In this embodiment, the positioning groove 14 is connected to the insertion hole 20 , and the diameter of the positioning groove 14 is larger than the diameter of the insertion hole 20 .

[0030] In this embodiment, the internal expansion chuck 10 is composed of a plurality of rubber blocks and push blocks that are staggered and fixedly connected, and a plurality of protrusions 11 match the rubber blocks.

[0031] In this embodiment, a plurality of guide rods 18 with equal angles are fixedly installed between the inner walls on both sides of the positioning groove 14, and a threaded sleeve 16 is slidably arranged between the plurality of guide rods 18. The diameter of the threaded sleeve 16 is smaller than the diameter of the insertion hole 20, so that the threaded sleeve 16 can be moved from the positioning groove 14 to the inside of the insertion hole 20, which helps to accelerate the docking of the locking rod 6 and the threaded sleeve 16.

[0032] In this embodiment, a plurality of fixing sleeves 17 with equal angles are fixedly installed on one side of the circumferential outer wall of the threaded sleeve 16, and each fixing sleeve 17 is slidably sleeved with the guide rod 18. A support spring 19 is sleeved on the outer side of the circumference of each guide rod 18, and each group of support springs 19 is located between the inner wall of one side of the positioning groove 14 and the fixing sleeve 17, so that the multiple support springs 19 effectively push the fixing sleeve 17 to move along the guide rod 18 and push the threaded sleeve 16 close to the insertion hole 20, which helps to rotate the locking rod 6 and the threaded sleeve 16. Then, under the push of the cylinder 1, the push rod 3 pushes the expansion core 13 to move, so that the inner expansion chuck 10 locks the wear-resistant plate 5, and the locking rod 6 does not move with the movement of the expansion core 13 under the retraction action of the multiple support springs 19 and the condition that the length of the inner expansion chuck 10 remains unchanged.

[0033] In this embodiment, a thread 15 is provided on one circumferential side of the locking rod 6, and the circumferential side of the locking rod 6 is rotatably connected to the threaded sleeve 16. The outer wall of the other end of the locking rod 6 is fixedly connected to a polygonal block, and the polygonal block is located on the outside of the inner expansion chuck 10.

[0034] In this embodiment: a plurality of equiangular protrusions 11 are fixedly installed on the outer wall of the other side of the positioning seat 9, an inner expansion chuck 10 is sleeved on the outer side of the positioning seat 9, and a locking rod 6 is inserted in the middle of the inner expansion chuck 10. The locking rod 6 can be rotated and pulled out, and then the inner expansion chuck 10 can be replaced, thereby fixing and locking wear-resistant sheets 5 with different inner diameters. The inner expansion chuck 10 is composed of a plurality of rubber blocks and push blocks that are staggered and fixedly connected. The plurality of protrusions 11 match the rubber blocks, which facilitates the sliding sleeve or sliding extraction of the inner expansion chuck 10 on the positioning seat 9;

[0035] A plurality of guide rods 18 and support springs 19 with equal angles are arranged inside the positioning groove 14, and a threaded sleeve 16 is slidably arranged between the plurality of guide rods 18, so that the plurality of support springs 19 effectively push the fixed sleeve 17 to move along the guide rod 18 and push the threaded sleeve 16 close to the insertion hole 20, which helps the rotational connection between the locking rod 6 and the threaded sleeve 16. Then, under the push of the cylinder 1, the push rod 3 pushes the expansion core 13 to move so that the inner expansion chuck 10 locks the wear-resistant plate 5. Under the retraction action of the plurality of support springs 19 and the unchanged length of the inner expansion chuck 10, the locking rod 6 does not move with the movement of the expansion core 13.

[0036] In this embodiment, a thread 15 is provided on one circumferential side of the locking rod 6, and the circumferential side of the locking rod 6 is rotatably connected to the threaded sleeve 16. The outer wall of the other end of the locking rod 6 is fixedly connected to a polygonal block, and the polygonal block is located on the outside of the inner expansion chuck 10.

[0037] The above description is merely a specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any person skilled in the art can easily conceive of various modifications or substitutions within the technical scope disclosed in the present invention, and such modifications or substitutions are intended to be within the scope of protection of the present invention. Therefore, the scope of protection of the present invention shall be based on the scope of protection of the claims.

Claims

1. An internal expansion device for production and positioning of wear-resistant sheets, comprising a base (7), a cylinder (1) provided on one side of the base (7), a second flange assembly (4) fixedly mounted on the outer wall of one side of the base (7), and a fixing seat (8) and a positioning seat (9) fixedly mounted in sequence on the outer wall of the other side of the base (7), characterized in that: An expansion core (13) is provided on the outside of the positioning seat (9), and a positioning groove (14) is provided in the middle of the expansion core (13). A push rod (3) is provided on one side of the expansion core (13), and a socket (20) is provided in the middle of the outer wall of the other end of the expansion core (13). A plurality of equiangular protrusions (11) are fixedly installed on the outer wall of the other side of the positioning seat (9). An inner expansion chuck (10) is sleeved on the outside of the positioning seat (9), and a locking rod (6) is inserted in the middle of the inner expansion chuck (10). A wear-resistant plate (5) is sleeved on the outer side of the circumference of the inner expansion chuck (10).

2. The internal expansion device for production and positioning of wear-resistant sheets according to claim 1, characterized in that: A first flange assembly (2) is provided between the movable end of the cylinder (1) and one side of the push rod (3), and a third flange assembly (12) is provided between the other side of the push rod (3) and one side of the expansion core (13).

3. The internal expansion device for production and positioning of wear-resistant sheets according to claim 1, characterized in that: The positioning groove (14) and the insertion hole (20) are connected, and the diameter of the positioning groove (14) is larger than the diameter of the insertion hole (20).

4. The internal expansion device for production and positioning of wear-resistant sheets according to claim 1, characterized in that: The inner expansion chuck (10) is composed of a plurality of rubber blocks and push blocks that are staggered and fixedly connected, and a plurality of protrusions (11) match the rubber blocks.

5. The internal expansion device for production and positioning of wear-resistant sheets according to claim 3, characterized in that: A plurality of guide rods (18) with equal angles are fixedly installed between the inner walls on both sides of the positioning groove (14), and a threaded sleeve (16) is slidably arranged between the plurality of guide rods (18), wherein the diameter of the threaded sleeve (16) is smaller than the diameter of the insertion hole (20).

6. The internal expansion device for production and positioning of wear-resistant sheets according to claim 5, characterized in that: A plurality of fixed sleeves (17) with equal angles are fixedly mounted on one side of the circumferential outer wall of the threaded sleeve (16), and each fixed sleeve (17) is slidably sleeved with a guide rod (18). A support spring (19) is sleeved on the circumferential outer side of each guide rod (18), and each group of support springs (19) is located between the inner wall of one side of the positioning groove (14) and the fixed sleeve (17).

7. The internal expansion device for production and positioning of wear-resistant sheets according to claim 5, characterized in that: A thread (15) is provided on one circumferential side of the locking rod (6), and the circumferential side of the locking rod (6) is rotatably connected to the threaded sleeve (16). The outer wall of the other end of the locking rod (6) is fixedly connected to a polygonal block, and the polygonal block is located on the outside of the inner expansion chuck (10).

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