Fixture and workstation suitable for offline transfer stacking of double-station pipe expander

Abstract

The utility model provides a clamp and a work station suitable for transferring and stacking a double-station pipe expander off line, relates to the technical field of pipe expanders, and solves the technical problem that an off-line robot in the double-station pipe expander cannot carry out off-line stacking on two devices. The clamp is a composite clamp and comprises a supporting frame fixed to offline equipment; the first clamping assembly is arranged on the supporting frame and used for clamping in the thickness direction of the two devices so as to achieve the off-line action of the two devices; the second clamping assembly is arranged on the supporting frame and used for clamping in the width direction of the two devices so as to achieve the stacking action of the two devices; the work station comprises a transfer table, a robot and a clamp installed on an arm of the robot. The transfer table is mounted beside an annular conveying line of the double-station pipe expander; the robot is arranged between the transfer table and the stacking conveying line. The stacking device is used for automatic and unmanned offline stacking of the double-station pipe expander.

Description

Technical Field

[0001] The utility model relates to the technical field of tube expanders, in particular to a clamp and a workstation suitable for off-line transfer and palletizing of a double-station tube expander. Background Art

[0002] There is a tube expansion process in the production process of two air conditioners. The tube expansion equipment is divided into single-station (single-piece tube expansion) and double-station (single-piece tube expansion). The latter has higher production efficiency, but requires the two products to be side by side to meet the needs. The robot needs to clamp and stack the two devices separately. The normal clamping and stacking fixture cannot directly remove the two devices from the tooling. Therefore, in the double-station tube expansion machine, after the tube expansion is completed, the conventional offline robot and fixture cannot directly clamp the product and complete the offline stacking. Utility Model Content

[0003] The utility model aims to provide a fixture and a workstation suitable for off-line transfer palletizing of a double-station tube expander, so as to solve the technical problem in the prior art that the off-line robot in the double-station tube expander cannot palletize two pieces and two devices off-line.

[0004] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0005] The utility model provides a clamp suitable for off-line transfer and palletizing of a double-station tube expander. The clamp is a composite clamp, comprising:

[0006] Support frame, fixed on the offline equipment;

[0007] A first clamping assembly is arranged on the support frame and is used to clamp the two devices in the thickness direction to realize the offline action of the two devices;

[0008] The second clamping assembly is arranged on the support frame and is used for clamping the two containers in the width direction to realize the stacking action of the two containers.

[0009] Furthermore, the support frame is a rectangular frame structure, including two cross beams arranged side by side, longitudinal beams connected at both ends of the two cross beams, a top plate arranged between the two cross beams, and a connecting column, and connecting flanges are respectively arranged at both ends of the connecting column, the connecting flange at one end is connected to the top plate, and the connecting flange at the other end is connected to the offline equipment.

[0010] Furthermore, the first clamping assembly includes a clamping cylinder, an upper clamping plate, and a cylinder connecting plate, wherein:

[0011] The cylinder connecting plate is U-shaped and includes an upper free arm, a lower free arm and a vertical connecting arm; the vertical connecting arm is connected to the middle of the support frame, and the length of the upper free arm is less than the length of the lower free arm;

[0012] The clamping cylinder is vertically mounted at the end of the upper free arm;

[0013] The upper clamping plate is fixed on the clamping cylinder and can be moved closer to or farther away from the lower free arm under the drive of the clamping cylinder, thereby forming a thickness clamping area between the upper clamping plate and the lower free arm.

[0014] Furthermore, the front end of the upper clamping plate is flush with the end of the lower free arm, and the left and right ends of the upper clamping plate are flush with the left and right ends of the lower free arm.

[0015] Furthermore, the second clamping assembly includes a servo motor, a forward and reverse screw nut mechanism, a left clamping plate, and a right clamping plate; wherein:

[0016] The servo motor is fixed on the support frame;

[0017] One end of the forward and reverse screw nut mechanism is rotatably arranged on the support frame, and the other end is drivingly connected to the output shaft of the servo motor;

[0018] The left clamping plate and the right clamping plate are respectively connected to the two nuts in the forward and reverse screw nut mechanism, and can be driven by the servo motor to achieve the approach or distance between the left clamping plate and the right clamping plate, thereby forming a width clamping area between the left and right clamping plates.

[0019] Furthermore, the second clamping assembly also includes a quick-extending assembly arranged between the left clamping plate and the forward and reverse screw nut mechanism, and / or a quick-extending assembly between the right clamping plate and the forward and reverse screw nut mechanism; the quick-extending assembly is used to realize the rapid extension and retraction of the left clamping plate and / or the right clamping plate.

[0020] Furthermore, the quick extension assembly includes a telescopic cylinder, a fixed seat, and a slide rail; wherein:

[0021] The slide rail is arranged on the support frame;

[0022] One end of the fixing seat is provided with a through sliding hole which is slidably connected to the sliding rail;

[0023] The other end of the fixing seat is connected to the nut in the forward and reverse screw nut mechanism;

[0024] The telescopic cylinder is fixed on the fixing seat;

[0025] The left clamping plate or the right clamping plate is fixed on the telescopic cylinder.

[0026] Furthermore, the second clamping assembly also includes a stabilizing mechanism disposed between the left clamping plate and the right clamping plate.

[0027] Furthermore, the stabilizing mechanism includes a connecting seat, a stabilizing column, a spring, and a pressure plate; wherein:

[0028] The connecting seat is installed on the quick extension component;

[0029] There are four stabilizing columns, which are respectively arranged at the four corners of the connecting seat;

[0030] One end of the stabilizing column is movably inserted into the connecting seat, and the other end is fixed to the pressing plate;

[0031] The spring is sleeved on the stabilizing column, and two ends of the spring are respectively in contact with the connecting seat and the pressing plate.

[0032] Furthermore, the pressure plate, the left clamping plate, the right clamping plate, the lower free arm, and the upper clamping plate are all provided with buffer rubber pads.

[0033] The utility model provides a clamp suitable for off-line transfer palletizing of a double-station tube expander, which is a composite clamp that can complete product posture adjustment between the tube expander and the palletizing area, realize automatic and unmanned off-line palletizing, and solve the problem that the double-station tube expander cannot automatically palletize off-line.

[0034] The utility model provides a workstation suitable for off-line transfer and palletizing of a double-station tube expander, which is arranged between the double-station tube expander and the palletizing conveyor line. The workstation comprises a transfer table, a robot and the clamp installed on the robot arm; the transfer table is installed beside the annular conveyor line of the double-station tube expander; and the robot is arranged between the transfer table and the palletizing conveyor line.

[0035] Furthermore, the transfer table includes a transfer table frame, a pressing cylinder, and a pressing bar, wherein:

[0036] A support column is provided on the top of the transfer platform frame;

[0037] There are two press cylinders, which are respectively arranged on both sides of the top of the turntable frame;

[0038] The pressing bar is vertically fixed on the pressing cylinder and can move closer to or farther from the support column under the drive of the pressing cylinder, thereby forming a transfer vertical material area between the pressing bar and the support column;

[0039] Buffer rubber pads are arranged on the pressing strips and the supporting columns.

[0040] The workstation provided by the utility model adopts a composite fixture and a transfer table to complete product posture adjustment between the tube expander and the palletizing area, realize automatic and unmanned offline palletizing of the double-station tube expander, and solve the problem that conventional offline robots cannot complete offline palletizing. BRIEF DESCRIPTION OF THE DRAWINGS

[0041] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0042] Figure 1 This is an isometric view of a fixture suitable for palletizing in the off-line transfer of a double-station tube expander;

[0043] Figure 2 It is an axial view of the utility model after the first clamping component is removed from the clamp for transfer and palletizing of a double-station tube expander;

[0044] Figure 3 It is a structural schematic diagram of the first clamping component in the clamp suitable for off-line transfer and palletizing of a double-station tube expander of the utility model;

[0045] Figure 4 This is a schematic diagram of the structure of a workstation suitable for off-line transfer and palletizing of a double-station tube expander;

[0046] Figure 5 This is the rear view of the transfer table in the workstation suitable for transfer and palletizing of the double-station tube expander;

[0047] Figure 6 It is a side view of the transfer table in the workstation suitable for transfer and palletizing of the double-station tube expander;

[0048] Figure 7 This is the main view of the transfer table in the workstation suitable for off-line transfer and palletizing of a double-station tube expander;

[0049] Figure 8 The utility model is a three-dimensional structural schematic diagram of a transfer table in a workstation suitable for off-line transfer and palletizing of a double-station tube expanding machine.

[0050] In the figure, 1, support frame; 11, cross beam; 12, longitudinal beam; 13, top plate; 14, connecting column; 15, connecting flange; 2, first clamping assembly; 21, clamping cylinder; 22, upper clamping plate; 23, cylinder connecting plate; 231, upper free arm; 232, lower free arm; 233, vertical connecting arm; 24, thickness clamping area; 3, second clamping assembly; 31, servo motor; 32, positive and negative screw nut mechanism; 33, left clamping plate; 34, right clamping plate; 35, width clamping area; 36 , quick-extending assembly; 361, telescopic cylinder; 362, fixed seat; 363, slide rail; 37, stabilizing mechanism; 371, connecting seat; 372, stabilizing column; 373, spring; 374, pressing plate; 38, buffer rubber pad; 4, turntable; 41, turntable frame; 42, pressing cylinder; 43, pressing strip; 44, supporting column; 5, robot; 100, two devices; 200, double-station tube expander; 300, stacking conveyor line; 400, ring conveyor line; 500, double-station tooling plate. DETAILED DESCRIPTION

[0051] In order to make the purpose, technical solution and advantages of the utility model clearer, the technical solution of the utility model will be described in detail below. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other implementation methods obtained by ordinary technicians in this field without creative work belong to the scope of protection of the utility model.

[0052] like Figure 1 and Figure 2 As shown, the utility model provides a fixture suitable for off-line transfer and palletizing of a double-station tube expander. Specifically, the fixture is a composite fixture, including:

[0053] The support frame 1 is fixed on the offline equipment; it should be noted here that, in this embodiment, the offline equipment is a robot 5, and a multi-axis robot 5. By installing the support frame 1 on the arm of the robot 5, the posture can be adjusted under the drive of the robot 5; the following specific description is given by taking the offline equipment as the robot 5 as an example.

[0054] The first clamping assembly 2 is arranged on the support frame 1 and is used to clamp the two devices 100 in the thickness direction to realize the off-line action of removing the two devices 100 from the double-station tooling plate 500;

[0055] The second clamping assembly 3 is disposed on the support frame 1 and is used for clamping the two containers 100 in the width direction to achieve the stacking action of the two containers 100.

[0056] Specifically, in this embodiment, the first clamping assembly 2 is located at the rear side of the middle part of the second clamping assembly 3 .

[0057] The utility model provides a clamp suitable for off-line transfer palletizing of a double-station tube expander, which is a composite clamp that can complete product posture adjustment between the tube expander and the palletizing area, realize automatic and unmanned off-line palletizing, and solve the problem that the double-station tube expander cannot automatically palletize off-line.

[0058] As an optional embodiment of the present invention, the support frame 1 is a rectangular frame structure. By setting it into such a structure, it is also for the convenience of arranging the driving part of the subsequent clamping assembly. In this embodiment, the support frame 1 includes two cross beams 11 arranged side by side, a longitudinal beam 12 connected at both ends of the two cross beams 11, and a top plate 13 arranged in the middle of the two cross beams 11. The top plate 13 is a rectangular structure, and the two ends are overlapped in the middle of the cross beams 11; it should be noted that the cross beam 11 needs to be arranged vertically, that is, its larger width should be along the vertical direction, thereby forming a certain accommodating space in the support frame 1; it also includes a hollow cylindrical connecting column 14, and connecting flanges 15 are respectively arranged at both ends of the connecting column 14, the connecting flange 15 at one end is connected to the top plate 13, and the connecting flange 15 at the other end is connected to the arm of the robot 5.

[0059] Further, such as Figure 3 As shown, the first clamping assembly 2 includes a clamping cylinder 21, an upper clamping plate 22, and a cylinder connecting plate 23, wherein:

[0060] The cylinder connecting plate 23 is U-shaped and includes an upper free arm 231, a lower free arm 232 and a vertical connecting arm 233; reinforcing plates are provided between the upper free arm 231 and the vertical connecting arm 233 and between the lower free arm 232 and the vertical connecting arm 233 to increase the strength of the cylinder connecting plate 23; the vertical connecting arm 233 is connected to the middle of the support frame 1. Further, as Figure 1 As shown, the cylinder connecting plate 23 is connected to the outer side of the cross beam 11 of the support frame 1; the length of the upper free arm 231 is less than the length of the lower free arm 232. Through this structural setting, it is convenient to arrange the clamping cylinder 21;

[0061] Specifically, Figure 3 As shown, the clamping cylinder 21 is vertically mounted at the end of the upper free arm 231;

[0062] The upper clamping plate 22 is fixed on the clamping cylinder 21, and can be moved closer to or farther away from the lower free arm 232 under the drive of the clamping cylinder 21, thereby forming a thickness clamping area 24 between the upper clamping plate 22 and the lower free arm 232, and the thickness clamping area 24 is used to clamp the two devices 100 in the thickness direction.

[0063] Furthermore, the front end of the upper clamping plate 22 is flush with the end of the lower free arm 232, and the left and right ends of the upper clamping plate 22 are flush with the left and right ends of the lower free arm 232. This structural setting is not only beautiful in appearance, but also easy to clamp.

[0064] Further, such as Figure 1 and Figure 2 As shown, the second clamping assembly 3 includes a servo motor 31, a forward and reverse screw nut mechanism 32, a left clamping plate 33, and a right clamping plate 34; wherein:

[0065] The servo motor 31 is fixed on the support frame 1. Specifically, the servo motor 31 is fixed on a longitudinal beam 12 on one side of the support frame 1.

[0066] One end of the forward and reverse screw nut mechanism 32 is rotatably set on the support frame 1, and the other end is connected to the output shaft of the servo motor 31; when the servo motor 31 is working, it can drive the forward and reverse screws of the forward and reverse screw nut mechanism 32 to rotate, thereby driving the two nuts located on the forward and reverse screws to move closer to or away from each other.

[0067] The left clamping plate 33 and the right clamping plate 34 are respectively connected to the two nuts in the forward and reverse screw nut mechanism 32, and can be driven by the servo motor 31 to achieve the left clamping plate 33 and the right clamping plate 34 to move closer or farther away from each other, thereby forming a width clamping area 35 between the left and right clamping plates 34, and the width clamping area 35 is used to clamp the two devices 100 in the width direction.

[0068] It should be noted that, in this embodiment, the thickness direction of the two devices 100 refers to Figure 5 In the direction perpendicular to the paper surface, the width direction of the two devices 100 refers to the direction perpendicular to the paper surface. Figure 5 The direction of the left and right sides.

[0069] Further, such as Figure 2 As shown, the second clamping assembly 3 further includes a quick extension assembly 36 disposed between the left clamping plate 33 and the forward and reverse screw nut mechanism 32, and / or a quick extension assembly 36 disposed between the right clamping plate 34 and the forward and reverse screw nut mechanism 32; the quick extension assembly 36 is used to realize the quick extension and retraction of the left clamping plate 33 and / or the right clamping plate 34. When clamping in the width direction, the servo motor 31 and the quick extension assembly 36 can be controlled to act simultaneously, so that the left clamping plate and the right clamping plate can be quickly approached and separated.

[0070] Further, such as Figure 2 As shown, the quick extension assembly 36 includes a telescopic cylinder 361, a fixing seat 362, and a slide rail 363; wherein:

[0071] The slide rail 363 is arranged on the support frame 1;

[0072] A through sliding hole slidably connected to the slide rail 363 is formed at one end of the fixing seat 362; it should be noted here that the through hole can be a circular hole with a completely circumferential surface, or a semicircular hole with a partial circumferential surface.

[0073] The other end of the fixing seat 362 is connected to the nut in the forward and reverse screw nut mechanism 32;

[0074] The telescopic cylinder 361 is fixed on the fixing seat 362;

[0075] The left clamping plate 33 or the right clamping plate 34 is fixed on the telescopic cylinder 361 .

[0076] Further, such as Figure 2 As shown, the second clamping assembly 3 also includes a stabilizing mechanism 37 disposed between the left clamping plate 33 and the right clamping plate 34. The stabilizing mechanism 37 is used to press one side of the two devices 100 when the left and right clamping plates clamp the two devices 100, so as to improve the stability of the second clamping assembly 3 clamping the two devices 100, and ensure that the two devices 100 will not be skewed or tipped forward and backward when clamping in the width direction.

[0077] Further, such as Figure 2 As shown, the stabilizing mechanism 37 includes a connecting seat 371, a stabilizing column 372, a spring 373, and a pressing plate 374; wherein:

[0078] The connecting seat 371 is installed on the quick extension assembly 36;

[0079] There are four stabilizing columns 372, which are respectively arranged at the four corners of the connecting seat 371; one end of the stabilizing column 372 has a head, and the stabilizing column 372 is an optical axis structure, and the other end of the stabilizing column 372 can be a threaded section or an optical axis, and the stabilizing column 372 is screwed to the pressing plate 374, or welded to the pressing plate 374, so as to achieve a fixed connection between the stabilizing column 372 and the pressing plate 374;

[0080] One end of the stabilizing column 372 is movably inserted into the connecting seat 371, and the other end is fixed to the pressure plate 374; a light hole is opened on the connecting seat 371, and when the pressure plate 374 presses the two devices 100, the pressure plate 374 will move toward one side of the connecting seat 371, thereby driving the stabilizing column 372 to extend relative to the connecting seat 371, and due to the action of the spring 373, the pressure plate 374 is pushed and maintained in a stable position.

[0081] The spring 373 is sleeved on the stabilizing column 372 , and two ends of the spring 373 are respectively in contact with the connecting seat 371 and the pressing plate 374 .

[0082] Furthermore, the pressure plate 374, the left clamping plate 33, the right clamping plate 34, the lower free arm 232, and the upper clamping plate 22 are all provided with a cushioning rubber pad 38. The cushioning rubber pad 38 is used to protect the two devices 100 products from being damaged when being clamped. In the present utility model, the surfaces of the components in contact with the two devices 100 are all provided with a cushioning rubber pad 38 to ensure the safety of the two devices 100.

[0083] like Figure 4As shown, the utility model provides a workstation suitable for transfer and palletizing of a double-station tube expander offline, which is arranged between the double-station tube expander 200 and the palletizing conveyor line 300. The workstation includes a transfer table 4, a robot 5, and a fixture installed on the arm of the robot 5; the transfer table 4 is installed beside the circular conveyor line 400 of the double-station tube expander 200; the robot 5 is arranged between the transfer table 4 and the palletizing conveyor line 300. The two-device 100 products are conveyed on the circular conveyor line 400 via the double-station tooling plate 500, and when conveyed to the transfer table 4, they stay and wait for unloading and transfer.

[0084] Further, such as Figure 5-Figure 8 As shown, the transfer table 4 includes a transfer table frame 41, a pressing cylinder 42, and a pressing bar 43, wherein:

[0085] A support column 44 is provided on the top of the transfer platform frame 41; further, Figure 5 As shown, the support column 44 is a door-shaped structure, which is used to support and clamp the two devices 100 in three directions;

[0086] There are two pressing cylinders 42, which are respectively arranged on both sides of the top of the transfer table frame 41;

[0087] The pressing bar 43 is vertically fixed on the pressing cylinder 42, and can be moved closer to or farther away from the support column 44 under the drive of the pressing cylinder 42, thereby forming a transfer vertical material area between the pressing bar 43 and the support column 44; it should be noted that, in the present utility model, the pressing bar 43 is a plate-like structure, which is used to support and clamp the two devices 100 on the other side of the two devices 100.

[0088] Buffer rubber pads 38 are provided on the pressing strips 43 and the supporting columns 44 .

[0089] The workstation provided by the utility model adopts a composite fixture and sets a transfer table 4 to complete product posture adjustment between the tube expander and the palletizing area, realize automatic and unmanned offline palletizing of the double-station tube expander, and solve the problem that the conventional offline robot 5 cannot complete offline palletizing.

[0090] like Figure 4As shown, the double-station tube expander in the utility model can expand two side-by-side devices at the same time, so the two devices 100 are placed side by side on the double-station tooling plate 500. Therefore, there are two devices 100 on the double-station tooling plate 500. The utility model uses the first clamping component 2 to clamp in the thickness direction because the normal clamping and stacking fixture cannot directly remove one of the devices from the double-station tooling plate 500 with two devices, and the side clamping fixture (that is, the first clamping component 2 for thickness clamping) can directly take the two devices 100, but cannot directly stack. Therefore, the utility model is provided with a second clamping component 3 for clamping in the width direction to perform the stacking action after clamping in the width direction. By clamping in the width direction in the vertical state, In order to prevent damage to the product, and also to lay it flat; the action process of the fixture is as follows: 1. After the double-station tube expander completes the tube expansion, the double-station tooling plate carrying the two devices is transported to the unloading station by the circular conveyor line, and the robot drives the composite fixture to the unloading station and adjusts the fixture posture. Then the robot first uses the first clamping component 2 to clamp the two devices from the thickness direction above, and removes one of the two devices 100 from the double-station tooling plate 500; 2. The robot places the two devices on the transfer table 4; 3. The robot drives the composite fixture to adjust the fixture posture, so that the second clamping component 3 clamps the two devices from the side in the width direction, and takes the two devices out of the transfer table; 4. The robot adjusts the fixture posture and stacks the two devices on the stacking conveyor line. After stacking is completed, the conveyor line transports the products to other places.

[0091] First of all, it should be explained here that “inward” refers to the direction toward the center of the accommodating space, and “outward” refers to the direction away from the center of the accommodating space.

[0092] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate directions or positional relationships based on the attached Figure 1 The orientation or positional relationship shown is only for the convenience of describing the present invention and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0093] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of the present utility model, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0094] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0095] In the present utility model, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being "above", "above" or "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below", "below" or "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0096] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, without contradiction.

[0097] The above is only a specific implementation of the utility model, but the protection scope of the utility model is not limited thereto. Any technician familiar with the technical field can easily think of changes or substitutions within the technical scope disclosed by the utility model, which should be included in the protection scope of the utility model. Therefore, the protection scope of the utility model should be based on the protection scope of the claims.

Claims

1. A fixture suitable for palletizing during off-line transfer of a double-station tube expander, characterized in that: The clamp is a composite clamp, comprising: Support frame, fixed on the offline equipment; A first clamping assembly is arranged on the support frame and is used to clamp the two devices in the thickness direction to realize the offline action of the two devices; The second clamping assembly is arranged on the support frame and is used for clamping the two containers in the width direction to realize the stacking action of the two containers.

2. The clamp according to claim 1, characterized in that: The support frame is a rectangular frame structure, including two cross beams arranged side by side, a longitudinal beam connected to the two ends of the two cross beams, a top plate arranged between the two cross beams, and a connecting column, and connecting flanges are respectively arranged at both ends of the connecting column. The connecting flange at one end is connected to the top plate, and the connecting flange at the other end is connected to the offline equipment.

3. The clamp according to claim 1, characterized in that: The first clamping assembly comprises a clamping cylinder, an upper clamping plate, and a cylinder connecting plate, wherein: The cylinder connecting plate is U-shaped and includes an upper free arm, a lower free arm and a vertical connecting arm; the vertical connecting arm is connected to the middle of the support frame, and the length of the upper free arm is less than the length of the lower free arm; The clamping cylinder is vertically mounted at the end of the upper free arm; The upper clamping plate is fixed on the clamping cylinder and can be moved closer to or farther away from the lower free arm under the drive of the clamping cylinder, thereby forming a thickness clamping area between the upper clamping plate and the lower free arm.

4. The clamp according to claim 3, characterized in that: The front end of the upper clamping plate is flush with the end of the lower free arm, and the left and right ends of the upper clamping plate are flush with the left and right ends of the lower free arm.

5. The clamp according to claim 3, characterized in that: The second clamping assembly includes a servo motor, a positive and negative screw nut mechanism, a left clamping plate, and a right clamping plate; wherein: The servo motor is fixed on the support frame; One end of the forward and reverse screw nut mechanism is rotatably arranged on the support frame, and the other end is drivingly connected to the output shaft of the servo motor; The left clamping plate and the right clamping plate are respectively connected to the two nuts in the forward and reverse screw nut mechanism, and can be driven by the servo motor to achieve the approach or distance between the left clamping plate and the right clamping plate, thereby forming a width clamping area between the left and right clamping plates.

6. The clamp according to claim 5, characterized in that: The second clamping assembly also includes a quick-extending assembly arranged between the left clamping plate and the forward and reverse screw nut mechanism, and / or a quick-extending assembly between the right clamping plate and the forward and reverse screw nut mechanism; the quick-extending assembly is used to realize the rapid extension and retraction of the left clamping plate and / or the right clamping plate.

7. The clamp according to claim 6, characterized in that The quick extension assembly includes a telescopic cylinder, a fixed seat, and a slide rail; wherein: The slide rail is arranged on the support frame; One end of the fixing seat is provided with a through sliding hole which is slidably connected to the sliding rail; The other end of the fixing seat is connected to the nut in the forward and reverse screw nut mechanism; The telescopic cylinder is fixed on the fixing seat; The left clamping plate or the right clamping plate is fixed on the telescopic cylinder.

8. The clamp according to claim 6, characterized in that: The second clamping assembly also includes a stabilizing mechanism disposed between the left clamping plate and the right clamping plate.

9. The clamp according to claim 8, characterized in that The stabilizing mechanism comprises a connecting seat, a stabilizing column, a spring, and a pressing plate; wherein: The connecting seat is installed on the quick extension component; There are four stabilizing columns, which are respectively arranged at the four corners of the connecting seat; One end of the stabilizing column is movably arranged on the connecting seat, and the other end is fixed on the pressing plate; The spring is sleeved on the stabilizing column, and two ends of the spring are respectively in contact with the connecting seat and the pressing plate.

10. The clamp according to claim 9, characterized in that The pressure plate, the left clamping plate, the right clamping plate, the lower free arm and the upper clamping plate are all provided with buffer rubber pads.

11. A workstation suitable for palletizing during off-line transfer of a double-station tube expander, characterized in that: The workstation is arranged between a double-station tube expander and a palletizing conveyor line, and includes a transfer table, a robot, and a fixture as described in any one of claims 1 to 10 installed on the robot arm; the transfer table is installed beside the circular conveyor line of the double-station tube expander; the robot is arranged between the transfer table and the palletizing conveyor line.

12. The workstation according to claim 11, characterized in that The transfer table comprises a transfer table frame, a pressing cylinder and a pressing bar, wherein: A support column is provided on the top of the transfer platform frame; There are two press cylinders, which are respectively arranged on both sides of the top of the turntable frame; The pressing bar is vertically fixed on the pressing cylinder and can move closer to or farther from the support column under the drive of the pressing cylinder, thereby forming a transfer vertical material area between the pressing bar and the support column; Buffer rubber pads are arranged on the pressing strips and the supporting columns.

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