Bidirectional inner supporting clamp based on pipe fitting transfer

Abstract

The utility model discloses a two-way inner supporting clamp based on pipe fitting transfer, which comprises a first clamp assembly, a second clamp assembly and a connecting plate, and the output end of the front end part where a first driving piece of the first clamp assembly is located is connected with a first driving rod; a second driving rod is connected to the output end of the front end, where a second driving piece is located, of the second clamp assembly, so that the axis direction of the output end of the first driving piece is not coaxial with the axis direction where the punch piece is located, and a second tensioning piece wraps the punch piece. The connecting plate comprises bearing tables in two directions and a connecting piece in the middle, and the bearing tables are fixedly connected with the rear end of the first clamp assembly and the rear end of the second clamp assembly respectively. According to the whole device, the first clamp assembly and the second clamp assembly are inserted from the ends of the pipe fitting in two directions and then transfer the pipe fitting, the length of a driving rod (air cylinder) in the direction is reduced, interference is avoided, clamping and transferring of the pipe fitting at the two ends can be synchronously achieved, and interference is avoided.

Description

Technical Field

[0001] The utility model belongs to the technical field of pipe fitting transfer equipment, and in particular relates to a bidirectional inner support clamp based on pipe fitting transfer. Background Art

[0002] When processing pipe fittings, they usually need to go through multiple bending processes, especially in heat exchange products, where there are many small pipe heads. Each time they are bent, they need to be manually or semi-mechanized to transfer the bent pipe to the next process for further processing, multiple bending and forming, and then transferred out again.

[0003] Chinese patent application publication number CN110641990B discloses a pipe transfer device comprising a gripping module, a positioning module, and a transfer manipulator. The gripping module comprises a mounting plate and a suction cup positioning module. The suction cup positioning module comprises a suction cup and an adaptive positioning mechanism. The adaptive positioning mechanism comprises two sets of adaptive positioning members, which are arranged on opposite sides of the suction cup. The adaptive positioning mechanism comprises an adaptive positioning member and an adaptive elastic member. The two adaptive positioning members are each provided with a downwardly inclined adaptive positioning slope on opposite sides. The adaptive elastic member is arranged between the mounting plate and the adaptive positioning member. The positioning module comprises a positioning frame, an axial drive mechanism, and a position detection module. The axial drive mechanism comprises an upper roller, at least two lower rollers, a rolling drive member, and an adjustment mechanism. The axes of the lower rollers are parallel to each other. This structure can only transfer a single pipe at a time. This is particularly true for bent pipes, which are so bent that conventional external clamping jaws cannot remove the pipe from the mold. This seriously affects the efficiency of the bending process. Utility Model Content

[0004] In view of the deficiencies in the prior art, the purpose of the present invention is to provide a bidirectional internal support clamp based on pipe transfer, which solves the above-mentioned technical problems existing in the prior art.

[0005] The purpose of the utility model can be achieved through the following technical solutions:

[0006] A bidirectional internal support clamp based on pipe transport, comprising a first clamp component, a second clamp component and a connecting plate.

[0007] The first clamp assembly includes a first driving member, a first driving rod, and a first tensioning member. The output end of the front end portion of the first driving member is connected to the first driving rod, and the first driving rod and the output end of the first driving member are coaxially arranged. The first tensioning member is located at the front end portion of the first driving rod and forms a wrap around it. The outer diameter of the first tensioning member is synchronously changed by the forward and backward telescopic driving of the first driving rod.

[0008] The second clamp assembly includes a second driving member, a second driving rod, a punch member and a second tensioning member, the front end output end of the second driving member is connected to the second driving rod, and the second driving rod and the front end output end of the first driving member are coaxially arranged, the second driving rod and the punch member are arranged at a certain angle, so that the axial direction of the output end of the first driving member is non-coaxial with the axial direction of the punch member, the second tensioning member forms an outer wrapping of the punch member, so that the forward and backward telescopic driving of the second driving rod realizes the reciprocating motion of the punch member in the non-coaxial direction, and synchronously forms a change in the outer diameter of the second tensioning member;

[0009] The connecting plate includes supporting platforms in two directions and a connecting piece in the middle. The supporting platforms are fixedly connected to the rear ends of the first clamp assembly and the second clamp assembly respectively, and the connecting piece fixes the two groups of supporting platforms at a certain angle.

[0010] Furthermore, the supporting platform and the connecting piece are an integrally formed structure.

[0011] Furthermore, the rear end portions of the first clamp assembly and the second clamp assembly are connected to the end surface of the supporting platform through bolts.

[0012] Furthermore, the first tensioning member and the second tensioning member adopt the same structure;

[0013] A plurality of first petals that are opened to each other are provided at the front end portion where the first tensioning member is located, forming a wrapping around the first driving rod on the inner side. When the first driving rod extends forward, the first petals open outward and form an expansion of the overall outer diameter of the first tensioning member. When the first driving rod retracts, the first petals merge toward the center, causing the outer diameter of the first tensioning member to shrink.

[0014] Furthermore, the front end portion of the second driving rod is configured as a sloped structure, and a through groove is provided at the end face where the punch part is located, and the inclined surface of the front end portion of the second driving rod is slidably connected with the inclined surface of the through groove of the punch part, and the up and down movement of the punch part in the axial direction is synchronously realized through the reciprocating motion of the second driving rod.

[0015] Furthermore, guide grooves are respectively provided on both sides of the extension direction of the through groove, and a guide protrusion is provided on the outer wall of the inclined surface at the front end of the second driving rod, so that when the second driving rod is pushed forward, the guide protrusion can be pushed forward in a limited direction along the guide groove.

[0016] Furthermore, a connecting hole is provided on the connecting plate, and the connecting hole is synchronously passed through the outer wall of the first clamp component, so that the penetration direction of the connecting hole is parallel to the overall extension direction of the first clamp component.

[0017] Furthermore, the first fixture assembly and the second fixture assembly are vertically distributed in the projection direction.

[0018] Beneficial effects of the utility model:

[0019] 1. The clamp assembly used in this device is an internal clamping method, which can directly penetrate the inner side of the end of the pipe fitting, and then realize the fitting and separation of the inside of the pipe fitting through the change of the outer diameter of the tensioning piece, thereby realizing the connection or separation of transportation, meeting the transportation needs of most bent pipe fittings.

[0020] 2. The first clamp assembly and the second clamp assembly used in this device cooperate with each other to simultaneously clamp and transport two groups of pipes. In addition, the deflection directions of these two groups of clamping assemblies are different. Therefore, when transporting bent pipes, the two directions do not interfere with each other, thereby improving the transportation efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for describing the embodiments or the prior art.

[0022] Figure 1 This is a schematic diagram of the overall structure of an embodiment of the utility model;

[0023] Figure 2 This is a schematic diagram of the overall structure of the first clamp assembly of an embodiment of the present utility model;

[0024] Figure 3 This is a schematic cross-sectional view of the first clamp assembly according to an embodiment of the present invention;

[0025] Figure 4 This is a schematic structural diagram of the first driving rod in an embodiment of the present utility model;

[0026] Figure 5 This is a schematic structural diagram of a first tensioning member according to an embodiment of the present utility model;

[0027] Figure 6 This is a schematic diagram of the overall structure of the second clamp assembly of an embodiment of the present utility model;

[0028] Figure 7 This is a schematic cross-sectional view of the second clamp assembly according to an embodiment of the present invention;

[0029] Figure 8 This is a schematic structural diagram of the second driving rod in an embodiment of the present utility model;

[0030] Figure 9 This is a schematic structural diagram of a punch component according to an embodiment of the present utility model;

[0031] Figure 10This is a schematic structural diagram of a second tensioning member according to an embodiment of the present utility model;

[0032] Figure 11 It is a schematic structural diagram of a connecting plate according to an embodiment of the present utility model. DETAILED DESCRIPTION

[0033] The following is a clear and complete description of the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0034] like Figure 1 As shown, an embodiment of the present invention provides a bidirectional internal support clamp based on pipe transportation, including a first clamp component 1, a second clamp component 2 and a connecting plate 3.

[0035] like Figure 2-4 As shown, the first clamp assembly 1 includes a first driving member 11, a first driving rod 12 and a first tensioning member 13. The output end of the front end portion of the first driving member 11 is connected to the first driving rod 12, and the first driving rod 12 and the output end of the first driving member 11 are coaxially arranged. The first tensioning member 13 is located at the front end portion of the first driving rod 12 and forms a wrapping. The outer diameter of the first tensioning member 13 is synchronously changed by the forward and backward telescopic drive of the first driving rod 12.

[0036] like Figure 6 、 Figure 7 As shown, the second clamp assembly 2 includes a second driving member 21, a second driving rod 22, a punch member 23 and a second tensioning member 24. The front end output end of the second driving member 21 is connected to the second driving rod 22, and the second driving rod 22 and the front end output end of the first driving member 11 are coaxially arranged. The second driving rod 22 and the punch member 23 are arranged at a certain angle, so that the axial direction of the output end of the first driving member 11 is non-coaxial with the axial direction of the punch member 23. The second tensioning member 24 forms an outer wrapping for the punch member 23, so that the forward and backward telescopic drive of the second driving rod 22 realizes the reciprocating motion of the punch member 23 in the non-coaxial direction, and synchronously forms a change in the outer diameter of the second tensioning member 24.

[0037] like Figure 11As shown, the connecting plate 3 includes two supporting platforms 31 in each direction and a central connector 32. The supporting platforms 31 and connector 32 are integrally formed, enhancing overall structural strength. The supporting platforms 31 are fixedly connected to the rear ends of the first and second clamp assemblies 1 and 2, respectively. The rear ends of the first and second clamp assemblies 1 and 2 are bolted to the end faces of the supporting platforms 31, making this connection convenient for reconnection and disassembly. The connector 32 secures the two sets of supporting platforms 31 at a fixed angle.

[0038] like Figure 5 As shown, a plurality of first flaps 131 that are opened to each other are provided at the front end portion where the first tensioning member 13 is located, and form a wrapping around the first driving rod 12 on the inner side. When the first driving rod 12 extends forward, the first flaps 131 open outward, and form an expansion of the overall outer diameter of the first tensioning member 13, thereby forming a fit with the inner wall of the pipe to be transported, and facilitating transportation after forming a whole; when the first driving rod 12 retracts, the first flaps 131 merge toward the center, causing the outer diameter of the first tensioning member 13 to shrink, thereby forming a separation of the inner wall of the pipe, and facilitating the separation of the whole from the inner wall of the pipe.

[0039] like Figure 10 As shown, similarly, the second tensioning member 24 adopts the same structural setting as the first tensioning member 13, that is, a plurality of second flaps 241 that are opened to each other are set at the front end portion of the second tensioning member 24 to form a wrap around the second driving rod 22 on the inner side. When the second driving rod 12 extends forward, the second flaps 241 open outward and form an expansion of the overall outer diameter of the second tensioning member 24, thereby forming a fit with the inner wall of the transport pipe to be transported, and facilitating transportation after forming a whole; when the second driving rod 12 retracts, the second flaps 241 merge toward the center, causing the outer diameter of the second tensioning member 24 to shrink, thereby forming a separation of the inner wall of the pipe, facilitating the separation of the whole from the inner wall of the pipe.

[0040] like Figure 8 As shown, the front end portion of the second drive rod 22 is set to an inclined structure, and at the same time, a through groove 231 is provided at the end face where the punch member 23 is located (the contact surface between the through groove 231 and the inclined surface of the front end portion of the second drive rod 22 is also an inclined structure), and the inclined surface of the front end portion of the second drive rod 22 is slidably connected with the inclined surface of the through groove 231 of the punch member 23, and the up and down movement of the punch member 23 in the axial direction is synchronously realized through the reciprocating motion of the second drive rod 22 (that is, the active direction of the punch member 23 and the active direction of the second drive rod 22 are not coaxially set at this time, and a vertical setting is adopted in this application, that is, a nonlinear motion driving mode is realized through the unique connection relationship between the second drive rod 22 and the punch member 23).

[0041] like Figure 9As shown, guide grooves 232 are respectively provided on both sides of the extension direction of the through groove 231, and at the same time, a guide protrusion 221 is provided on the outer wall of the inclined surface at the front end of the second driving rod 22, so that when the second driving rod 22 is pushed forward, the guide protrusion 221 is limitedly pushed along the direction of the guide groove 232 (at this time, the guide protrusion 221 is embedded in the guide groove 232, avoiding the relative position of the second driving rod 22 from being offset during the further pushing process).

[0042] A connecting hole 301 is provided on the connecting plate 3, and the connecting hole 301 is synchronously passed through the outer wall of the first clamp assembly 1, so that the penetration direction of the connecting hole 301 is parallel to the overall extension direction of the first clamp assembly 1, and the entire device is connected to the robotic arm through the connecting hole 301.

[0043] As needed, the first clamp assembly 1 and the second clamp assembly 2 are arranged perpendicularly in the projection direction. The first clamp assembly 1 and the second clamp assembly 2 are inserted from the ends of the pipe in two directions and then transferred, reducing the length of the drive rod (cylinder) to avoid interference (that is, when one set is clamping, the other set will not cause interference on the same axis and drop the clamped pipe).

[0044] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions are merely illustrative of the principles of the present invention. Various changes and improvements may be made to the present invention without departing from the spirit and scope of the present invention, and such changes and improvements fall within the scope of the present invention as claimed.

Claims

1. A bidirectional internal support clamp based on pipe transport, comprising a first clamp component (1), a second clamp component (2) and a connecting plate (3), characterized in that: The first clamp assembly (1) includes a first driving member (11), a first driving rod (12) and a first tensioning member (13), wherein the output end of the front end portion of the first driving member (11) is connected to the first driving rod (12), and the first driving rod (12) and the output end of the first driving member (11) are coaxially arranged, and the first tensioning member (13) is located at the front end portion of the first driving rod (12) and forms a wrap, and the outer diameter of the first tensioning member (13) is synchronously changed by the forward and backward telescopic driving of the first driving rod (12); The second clamp assembly (2) comprises a second driving member (21), a second driving rod (22), a punch member (23) and a second tensioning member (24), wherein the output end of the front end portion of the second driving member (21) is connected to the second driving rod (22), the second driving rod (22) and the punch member (23) are arranged at a certain angle, and the second tensioning member (24) forms an outer wrapping of the punch member (23), so that the forward and backward telescopic driving of the second driving rod (22) realizes the reciprocating motion of the punch member (23) in a non-coaxial direction, and simultaneously forms a change in the outer diameter of the second tensioning member (24); The connecting plate (3) comprises two directional bearing platforms (31) and a connecting piece (32) in the middle. The bearing platforms (31) are fixedly connected to the rear ends of the first clamp assembly (1) and the second clamp assembly (2), respectively, and the connecting piece (32) fixes the two groups of bearing platforms (31) at a certain angle.

2. The bidirectional internal support clamp based on pipe transport according to claim 1 is characterized in that: The supporting platform (31) and the connecting piece (32) are an integrally formed structure.

3. The bidirectional internal support clamp based on pipe transport according to claim 1 is characterized in that: The rear ends of the first clamp assembly (1) and the second clamp assembly (2) are connected to the end surface of the supporting platform (31) via bolts.

4. The bidirectional internal support clamp based on pipe transport according to claim 1 is characterized in that: The first tensioning member (13) and the second tensioning member (24) have the same structure; A plurality of first flaps (131) are provided at the front end portion of the first tensioning member (13) so as to wrap the first driving rod (12) on the inner side. When the first driving rod (12) extends forward, the first flaps (131) expand outward and form an expansion of the overall outer diameter of the first tensioning member (13). When the first driving rod (12) retracts, the first flaps (131) merge toward the center, so that the outer diameter of the first tensioning member (13) contracts.

5. The bidirectional internal support clamp based on pipe transport according to claim 1 is characterized in that: The front end portion of the second driving rod (22) is provided with an inclined surface structure, and a through groove (231) is provided at the end surface where the punch member (23) is located. The inclined surface of the front end portion of the second driving rod (22) is slidably connected with the inclined surface of the through groove (231) of the punch member (23), and the up and down movement of the punch member (23) in the axial direction is synchronously realized through the reciprocating motion of the second driving rod (22).

6. The bidirectional internal support clamp based on pipe transport according to claim 5 is characterized in that: Guide grooves (232) are respectively provided on both sides of the extending direction of the through groove (231), and a guide protrusion (221) is provided on the outer wall of the inclined surface at the front end of the second driving rod (22), so that when the second driving rod (22) is pushed forward, the guide protrusion (221) is limitedly pushed along the direction of the guide groove (232).

7. The bidirectional internal support clamp based on pipe transport according to claim 1 is characterized in that: The first clamp component (1) and the second clamp component (2) are distributed vertically in the projection direction.

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