A clamp and a turning device

Abstract

The present application discloses a clamp and a flipping device; the clamp is used to fix the hopper when manually welding small parts, and includes a mounting frame that can hold the hopper; a clamping mechanism, one end of which is fixed to the mounting frame, and the other end of which is inserted into the hopper; the portion of the clamping mechanism inserted into the hopper can abut against the inner bottom wall around the discharge port of the hopper to fix the hopper to the mounting frame. The present application is provided with a clamping mechanism, which has a simple structure, low cost, and is easy to produce and install; when manually welding small parts, the clamp is used to fix the hopper, and the hopper will not move or be misplaced, effectively ensuring the manual welding effect of small parts; and when the hopper needs to be flipped, it can be flipped with the existing flipping structure, without the need for an auxiliary crane to lift the flange, thereby ensuring welding efficiency and without safety hazards.

Description

Technical Field

[0001] The present application relates to the technical field of clamps, and more specifically to a clamp; and also to a flipping device comprising the clamp. Background Art

[0002] In the field of engineering machinery, hoppers are special-shaped structural parts, and the production process generally includes: ① assembling the lower hopper body, ② manual foundation laying, ③ robot welding of the lower hopper body, ④ machining of the lower hopper body, ⑤ assembling the upper hopper body, ⑥ welding and robot welding of the upper hopper body, and ⑧ manual welding of small parts. The process of manually welding small parts can effectively reduce the redundant and low-yield cycle of robot welding, eliminate the pain points of automated welding such as the inaccessible posture of the robot welding gun and the riveting and positioning of small parts, maximize the exploitation of production capacity, and improve efficiency. This has become a common method for hopper automated welding islands. At present, when manually welding small parts, due to the lack of special fixtures to fix the hopper, the hopper is often placed directly on the work platform. The hopper is prone to misalignment, which affects the welding effect. When the hopper is turned over, an auxiliary crane is required to lift the flange, which not only reduces the welding efficiency but also poses a safety hazard. Summary of the Invention

[0003] In view of this, the present application provides a clamp and a flipping device including the above-mentioned clamp, which is specially set up to fix the hopper during manual welding of small parts. It not only solves the problem that the hopper is easily dislocated and affects the welding effect; it also solves the problem that the hopper is inconvenient to flip, requires an auxiliary crane to lift the flange, has low welding efficiency, and poses a safety hazard.

[0004] In order to achieve the above objectives, this application provides the following technical solutions:

[0005] A fixture for fixing a hopper during manual welding of small parts, comprising:

[0006] A mounting frame capable of receiving the hopper;

[0007] A clamping mechanism has one end fixed to the mounting frame and the other end inserted into the hopper; the portion of the clamping mechanism inserted into the hopper can abut against the inner bottom wall around the discharge port of the hopper to fix the hopper to the mounting frame.

[0008] Optionally, in the above-mentioned clamp, the clamp also includes a clamping mechanism; the clamping mechanism includes a plurality of clamping components; the plurality of clamping components are capable of moving relative to the mounting frame; the plurality of clamping components abut against the outer wall of the hopper to clamp the hopper to the mounting frame.

[0009] Optionally, in the above-mentioned clamp, the clamping mechanism includes:

[0010] a first drive unit;

[0011] A first clamping plate and a second clamping plate inserted into the hopper;

[0012] The first driving unit is capable of driving the first clamping plate and the second clamping plate away from each other, and driving the first clamping plate and the second clamping plate to abut against the inner bottom wall around the discharge port of the hopper.

[0013] Optionally, in the above fixture,

[0014] A first guide groove is formed on the first clamping plate; from top to bottom, the first guide groove gradually moves away from the second clamping plate;

[0015] A second guide groove is formed on the second clamping plate; the second guide groove has the same shape as the first guide groove and is disposed opposite to the first guide groove;

[0016] The clamping mechanism further includes a fixing pin, which is inserted into the first guide groove and the second guide groove respectively;

[0017] The first driving unit drives the first clamping plate and the second clamping plate to move back and forth from top to bottom, and at the same time the first guide slot and the second guide slot both move along the fixed pin to drive the first clamping plate and the second clamping plate to move away from each other or relatively close to each other.

[0018] Optionally, in the above-mentioned clamp, the clamping assembly includes:

[0019] A supporting unit, fixed to the mounting frame;

[0020] A second driving unit is connected to the supporting unit; the second driving unit includes a driving column capable of telescopic movement;

[0021] The clamping unit is connected to the driving column and is driven by the driving column to move closer to or away from the hopper.

[0022] Optionally, in the above fixture,

[0023] The support unit includes a support frame and a shield; the shield is arranged on the top of the support frame, and the shield covers the second driving unit;

[0024] and / or,

[0025] The clamping unit includes a receiving plate and a clamping column; the receiving plate is fixedly connected to the driving column; the clamping column is arranged on the receiving plate;

[0026] and / or,

[0027] The clamping mechanism further includes a guide unit; the clamping unit moves under the guidance of the guide unit;

[0028] and / or,

[0029] Reinforcing ribs are provided between the support unit and the mounting frame.

[0030] Optionally, in the above fixture, the guide unit includes:

[0031] A guide sleeve is fixed to the support unit; the extension direction of the guide sleeve is parallel to the extension direction of the drive column;

[0032] The guide column is movably arranged in the guide sleeve, and one end of the guide column is fixedly connected to the clamping unit.

[0033] Optionally, in the above-mentioned clamp, there are three clamping components, namely the first clamping component, the second clamping component and the third clamping component; wherein, the first clamping component and the second clamping component are arranged opposite to each other; the third clamping component is arranged on the mid-perpendicular line of the first clamping component and the second clamping component.

[0034] Optionally, in the above-mentioned fixture, the mounting frame includes:

[0035] The mounting platform is provided with a communication port;

[0036] a positioning seat connected to the communication port;

[0037] Wherein, the discharge port of the hopper is sleeved on the positioning seat;

[0038] The portion of the positioning seat inserted into the hopper is provided with an outlet;

[0039] The clamping mechanism is fixed on the mounting platform, passes through the communicating port and is located in the positioning seat; the portion of the clamping mechanism inserted into the hopper can extend out of the outlet.

[0040] A turning device is used to turn over the hopper during manual small-part welding. The turning device includes:

[0041] A clamp as described above;

[0042] The rotating mechanism includes a first rotating platform and a second rotating platform; the mounting frame of the fixture is arranged on the first rotating platform; the rotation axis of the first rotating platform is perpendicular to the rotation axis of the second rotating platform;

[0043] The lifting mechanism can drive the rotating mechanism to move up and down.

[0044] The clamp and flipping device provided by the present application are provided with a clamping mechanism, one end of which is fixed to the mounting frame, and the other end is inserted into the hopper; when the part of the clamping mechanism inserted into the hopper abuts against the inner bottom wall around the discharge port of the hopper, the hopper can be clamped and fixed on the mounting frame, and its structure is simple, low in cost, and easy to produce and install; when manually welding small parts, the clamp of the present application is used to fix the hopper, and the hopper will not move or be dislocated, effectively ensuring the manual welding effect of small parts; and when the hopper needs to be flipped, it can be flipped with the existing flipping structure, without the need for an auxiliary crane to lift the flange, thereby ensuring welding efficiency and without safety hazards. BRIEF DESCRIPTION OF THE DRAWINGS

[0045] 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 the description of the prior art. Obviously, the drawings described below are merely embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on the provided drawings without any creative work.

[0046] Figure 1 This is a schematic diagram of the structure of the clamping mechanism of the present application to fix the hopper;

[0047] Figure 2 This is a schematic diagram of the structure of the clamping mechanism of the clamp of this application to fix the hopper;

[0048] Figure 3 A cross-sectional view of the clamping mechanism of the present application;

[0049] Figure 4 This is a schematic structural diagram of the clamping mechanism of the clamp in this application;

[0050] Figure 5 This is a schematic structural diagram of the clamping assembly of the clamp of this application;

[0051] Figure 6 This is a schematic structural diagram of the flipping device of the present application;

[0052] Figure 7 It is a structural diagram of the hopper from a first angle;

[0053] Figure 8 This is a schematic structural diagram of the hopper from the second angle.

[0054] Figures 1-8 middle:

[0055] 1-mounting frame, 2-clamping mechanism, 3-clamping mechanism, 4-rotating mechanism, 5-lifting mechanism, 6-hopper;

[0056] 11-mounting platform, 12-positioning seat, 13-connecting plate;

[0057] 21-first drive unit, 22-first clamping plate, 23-second clamping plate, 24-fixing pin;

[0058] 31- clamping assembly;

[0059] 41-first rotating platform, 42-second rotating platform;

[0060] 61-discharge port, 62-cylinder seat, 63-cylinder seat plate, 64-cylinder seat plate reinforcement rib, 65-pipe clamp, 66-oil distributor gasket, 67-license plate light mounting plate, 68-license plate frame, 69-U-shaped shaft seat, 610-screen limit seat, 611-shaft seat plate, 612-bucket body reinforcement rib, 613-bucket body rear wall plate;

[0061] 121-positioning column, 122-buffer washer;

[0062] 221-first guide groove;

[0063] 311-support unit, 312-second drive unit, 313-clamping unit, 314-guide unit, 315-reinforcement rib;

[0064] 3111-support frame, 3112-shield, 3113-fixing bar;

[0065] 3121-driving column, 3122-second driving member;

[0066] 3131-support plate, 3132-clamping column;

[0067] 3141-guide sleeve, 3142-guide column. DETAILED DESCRIPTION

[0068] The present application provides a clamp and also provides a flipping device including the clamp.

[0069] The following will be combined with the drawings in the embodiments of this application to clearly and completely describe the technical solutions in the embodiments of this application. Obviously, the embodiments described are only part of the embodiments of this application, not all of the embodiments. Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of this application.

[0070] Please see the attached Figure 7-8The manually welded small parts include two cylinder seats 62, two cylinder seat plates 63, four cylinder seat plate reinforcement ribs 64, multiple pipe clamps 65, oil separator gasket 66, license plate light mounting plate 67, license plate frame plate 68, two U-shaped shaft seats 69, two screen limit seats 610, and two shaft seat plates 611.

[0071] like Figure 1-Figure 5 As shown, a clamp is used to secure a hopper 6 during manual welding of small parts. The clamp comprises a mounting frame 1 and a clamping mechanism 2. The mounting frame 1 is capable of receiving the hopper 6. One end of the clamping mechanism 2 is fixed to the mounting frame 1, and the other end is inserted into the hopper 6. The portion of the clamping mechanism 2 inserted into the hopper 6 can abut against the inner bottom wall around the discharge port 61 of the hopper 6, thereby securing the hopper 6 to the mounting frame 1.

[0072] One end of the clamping mechanism 2 is fixed to the mounting frame 1, and the other end is inserted into the hopper 6; when the part of the clamping mechanism 2 inserted into the hopper 6 abuts against the inner bottom wall around the discharge port 61 of the hopper 6, the hopper 6 can be clamped and fixed on the mounting frame 1. Its structure is simple, low in cost, and easy to produce and install; when manually welding small parts, the clamp of the present application is used to fix the hopper 6, and the hopper 6 will not move or be dislocated, effectively ensuring the manual welding effect of small parts; and when the hopper 6 needs to be flipped, the existing flipping structure can be used to flip the hopper 6, without the need for an auxiliary crane to lift the flange, thereby ensuring welding efficiency and without safety hazards.

[0073] Furthermore, the existing flipping structure may be an L-shaped positioner, and its specific structure is described below.

[0074] In certain embodiments of the present application, the clamp also includes a clamping mechanism 3; the clamping mechanism 3 includes multiple clamping components 31; the multiple clamping components 31 are capable of moving relative to the mounting frame 1; the multiple clamping components 31 abut against the outer wall of the hopper 6 to clamp the hopper 6 to the mounting frame 1.

[0075] After the hopper 6 is placed on the mounting frame 1 , all the clamping assemblies 31 are moved from the outside of the hopper 6 toward the hopper 6 until all the clamping assemblies 31 are in contact with the outer wall of the hopper 6 , so as to further install and fix the hopper 6 .

[0076] The clamp of the present application is not only provided with a snap-fit ​​mechanism 2 , but also provided with a clamping mechanism 3 , and the cooperation of the two further ensures that the hopper 6 is securely mounted and fixed on the mounting frame 1 .

[0077] It should be noted that the position where the clamping assembly 31 abuts against the outer wall of the hopper 6 is set according to the specific model of the hopper 6 to ensure that the welding position of the hopper is not blocked when manual welding of small parts is performed.

[0078] In certain embodiments of the present application, the clamping mechanism 2 includes a first drive unit 21, a first clamping plate 22, and a second clamping plate 23. The first clamping plate 22 and the second clamping plate 23 are inserted through the discharge port 61 of the feed hopper 6, and the first clamping plate 22 and the second clamping plate 23 are arranged opposite each other. The first drive unit 21 is capable of driving the first clamping plate 22 and the second clamping plate 23 away from each other and driving the first clamping plate 22 and the second clamping plate 23 to abut against the inner bottom wall around the discharge port 61 of the hopper 6.

[0079] The structure of the clamping mechanism 2 is simple. By setting a first clamping plate 22 and a second clamping plate 23 that can be driven by the first driving unit 21, the first clamping plate 22 and the second clamping plate 23 can be moved away from each other. At the same time, the first clamping plate 22 and the second clamping plate 23 can be moved toward the discharge port 61 of the hopper 6, and finally the first clamping plate 22 and the second clamping plate 23 can be abutted against the inner bottom wall around the discharge port 61 of the hopper 6 (at this time, the extension length between the first clamping plate 22 and the second clamping plate 23 is greater than the diameter of the discharge port 61 of the hopper 6), thereby achieving a secure clamping fixation of the hopper 6 on the mounting frame 1.

[0080] Similarly, the first driving unit 21 can also drive the first clamping plate 22 and the second clamping plate 23 to be relatively close to each other, and at the same time realize the movement effect of the first clamping plate 22 and the second clamping plate 23 in the direction away from the discharge port 61 of the hopper 6 (at this time, the extension length between the first clamping plate 22 and the second clamping plate 23 is less than the diameter of the discharge port 61 of the hopper 6), thereby releasing the clamping fixation of the hopper 6 on the mounting frame 1.

[0081] In certain embodiments of the present application, a first guide groove 221 is defined on the first clamping plate 22 ; from top to bottom, the first guide groove 221 gradually moves away from the second clamping plate 23 .

[0082] The second guide groove is formed on the second clamping plate 23. The second guide groove has the same shape as the first guide groove 221 and is disposed opposite to each other. The clamping mechanism 2 further includes a fixing pin 24 which is inserted into the first guide groove 221 and the second guide groove respectively.

[0083] The first driving unit 21 is fixedly connected to the first clamping plate 22 and the second clamping plate 23 to drive the first clamping plate 22 and the second clamping plate 23 to move from top to bottom. At the same time, the first guide groove 221 and the second guide groove are guided to move along the fixed pin 24 to drive the first clamping plate 22 and the second clamping plate 23 away from each other until the first clamping plate 22 and the second clamping plate 23 abut against the inner bottom wall around the discharge port 61 of the hopper 6.

[0084] Similarly, the first driving unit 21 drives the first clamping plate 22 and the second clamping plate 23 to move from bottom to top. At the same time, the first guide groove 221 and the second guide groove are guided to move along the fixed pin 24 to drive the first clamping plate 22 and the second clamping plate 23 to be relatively close until the first clamping plate 22 and the second clamping plate 23 are disengaged from the discharge port 61 of the hopper 6, and the extension length between the first clamping plate 22 and the second clamping plate 23 is less than the diameter of the discharge port 61 of the hopper 6.

[0085] It should be noted that the first drive unit 21 includes a first drive member and a first drive column; the top of the first drive column is fixedly connected to the bottom of the first clip plate 22 and the bottom of the second clip plate 23 respectively; the first drive member drives the first drive column to move up and down, thereby driving the first clip plate 22 and the second clip plate 23 to move up and down synchronously.

[0086] Furthermore, the first driving component is a first servo motor. Of course, the first driving component can also be a commonly used driving structure such as a cylinder, a hydraulic cylinder, etc.

[0087] It should be further explained that the first clamping plate 22 and the second clamping plate 23 have the same structure and are arranged back to back.

[0088] The clamping mechanism 2 of the present application is matched with the guiding cooperation of the first guide groove 221, the second guide groove and the fixed pin 24. Only by setting a first driving unit 21, the first clamping plate 22 and the second clamping plate 23 can move away from each other while moving downward, and the first clamping plate 22 and the second clamping plate 23 can move relatively close to each other while moving upward. Its structure is simple and compact, easy to produce and process, and low in cost.

[0089] In certain embodiments of the present application, the clamping assembly 31 includes a support unit 311, a second drive unit 312, and a clamping unit 313. The support unit 311 is fixed to the mounting frame 1. The second drive unit 312 is connected to the support unit 311; the second drive unit 312 includes a telescopically movable drive column 3121 (the drive column 3121 is also known as the second drive column 3121). The clamping unit 313 is connected to the second drive column 3121 and is driven by the second drive column 3121 to move toward or away from the hopper 6.

[0090] It should be noted that the support unit 311 is connected to the mounting frame 1 via a detachable connector; the mounting frame 1 and the support unit 311 may be provided with more mounting holes for consideration of actual stress.

[0091] To ensure that the support unit 311 and the mounting frame 1 are detachably mounted to each other, the detachable connection member may be a bolt, a screw or other suitable structure.

[0092] The second driving unit 312 includes a second driving member 3122 and a second driving column 3121 ; the second driving member 3122 drives the second driving column 3121 to move horizontally, thereby synchronously driving the clamping unit 313 to move closer to or away from the outer wall of the hopper 6 .

[0093] Furthermore, the second driving member 3122 is a second servo motor. Of course, the second driving member 3122 can also be a commonly used driving structure such as a cylinder, a hydraulic cylinder, etc.

[0094] The clamping assembly 31 of the present application has a simple structure, a compact structure, is easy to produce and process, and has low cost.

[0095] In certain embodiments of the present application, the support unit 311 includes a support frame 3111 and a shield 3112 ; the shield 3112 is disposed on the top of the support frame 3111 , and the shield 3112 covers the second driving unit 312 .

[0096] It should be noted that the shield 3112 is located on the side of the support frame 3111 away from the mounting frame 1; the second driving column 3121 is arranged on the shield 3112 and passes through the support frame 3111; the clamping unit 313 is located on the side of the support frame 3111 close to the mounting frame 1, and is fixedly connected to the end of the second driving column 3121 passing through the support frame 3111.

[0097] By providing the protective cover 3112 , the second drive unit 312 can be protected from damage by external collisions, and dust and impurities can be prevented from entering the second drive unit 312 , thereby effectively extending the service life of the second drive unit 312 .

[0098] Furthermore, a fixing bar 3113 is provided at the top of the support frame 3111. The fixing bar 3113 is L-shaped and includes a horizontal portion and a vertical portion. The vertical portion of the fixing bar 3113 is fixedly connected to the support frame 3111. A snap-in interface is provided at the top of the shield 3112. The snap-in interface of the shield 3112 snaps into place with the horizontal portion of the fixing bar 3113, enabling quick and easy installation of the shield 3112 on the support frame 3111.

[0099] Furthermore, the clamping unit 313 includes a receiving plate 3131 and a clamping column 3132 ; the receiving plate 3131 is fixedly connected to the second driving column 3121 ; and the clamping column 3132 is disposed on the receiving plate 3131 .

[0100] It should be noted that one or more clamping posts 3132 may be provided on the receiving plate 3131 depending on the actual situation. In other embodiments, three or more clamping posts 3132 may be provided. The number of clamping posts 3132 may be selected based on the actual situation and is not limited thereto. In other embodiments, the clamping posts 3132 may be clamping blocks or other suitable structures.

[0101] Furthermore, the receiving plate 3131 can adjust its shape and size accordingly according to the surface shape of the hopper it contacts.

[0102] Furthermore, the clamping mechanism 3 further includes a guide unit 314 ; the clamping unit 313 moves under the guidance of the guide unit 314 .

[0103] By providing the guide unit 314 , the reliability and stability of the movement of the clamping unit 313 approaching or moving away from the hopper 6 are ensured.

[0104] In certain embodiments of the present application, the guide unit 314 includes a guide sleeve 3141 and a guide post 3142. The guide sleeve 3141 is fixed to the support unit 311; the extension direction of the guide sleeve 3141 is parallel to the extension direction of the drive post 3121. The guide post 3142 is movably inserted into the guide sleeve 3141 and fixedly connected to the clamping unit 313 at one end.

[0105] The guide unit 314 of the present application has a simple structure, is easy to produce and process, and has low cost.

[0106] It should be noted that the guide column 3142 and the second driving column 3121 are symmetrically arranged on both sides of the support frame 3111. As described above, the guide column 3142 can balance the force direction of the receiving plate 3131, preventing the second driving column 3121 from being subjected to forces outside the movement direction, and further ensuring the smooth support and movement of the clamping unit 313.

[0107] In certain embodiments of the present application, three clamping assemblies 31 are provided: a first clamping assembly, a second clamping assembly, and a third clamping assembly. The first clamping assembly and the second clamping assembly are disposed opposite each other, and the third clamping assembly is disposed at a perpendicular midpoint between the first and second clamping assemblies. This helps improve the clamping accuracy of the hopper 6.

[0108] It should be noted that please refer to the attached Figure 7 The first clamping assembly and the second clamping assembly are respectively in contact with the two opposite hopper body reinforcement ribs 612 of the hopper 6; Figure 8 The third clamping assembly abuts against the rear wall 613 of the hopper body 6.

[0109] Furthermore, a reinforcing rib 315 is provided between the support unit 311 of the third clamping assembly and the mounting frame 1. The reinforcing rib 315 is in a square shape and is provided at the tail end of the mounting frame 1 to strengthen the mounting frame 1, improve the bearing strength, and ensure the stability of the left and right bucket bodies of the hopper 6.

[0110] It should be noted that the number of clamping components 31 can also be set to other numbers, such as four or more, and the setting and adjustment are specifically made according to the model of the hopper 6 to ensure that the hopper 6 can be firmly fixed.

[0111] In certain embodiments of the present application, the mounting frame 1 includes a mounting platform 11 and a positioning seat 12. The mounting platform 11 defines a communication port. The positioning seat 12 is connected to the communication port. The discharge port 61 of the hopper 6 is sleeved onto the positioning seat 12; the portion of the positioning seat 12 that extends into the hopper 6 defines an outlet. The clamping mechanism 2 is fixed to the mounting platform 11 and extends through the communication port and into the positioning seat 12; the portion of the clamping mechanism 2 that extends into the hopper 6 can extend out of the outlet.

[0112] Specifically, the positioning base 12 includes a positioning post 121 and a buffer washer 122. The positioning post 121 is a hollow structure and is connected to the mounting platform 11 at the edge of the communication opening. The diameter of the positioning post 121 is smaller than the diameter of the discharge port 61 of the hopper 6 and is used to accurately position the hopper 6 on the fixture. The buffer washer 122 is sleeved onto the positioning post 121 to buffer the gravity of the hopper 6 when it is placed, thereby protecting the positioning post 121.

[0113] Furthermore, a communication port is located in the center of the mounting platform 11; a positioning post 121 is connected to the edge of the communication port via a detachable connector. A first drive unit 21 is fixed to the mounting platform 11; a first clip plate 22 and a second clip plate 23 are disposed within the positioning post 121. The portion of the positioning post 121 that extends into the feed hopper 6 defines a first outlet and a second outlet. The first clip plate 22 can extend out of the first outlet, and the second clip plate 23 can extend out of the second outlet.

[0114] To ensure that the mounting platform 11 and the positioning column 121 are detachably mounted to each other, the detachable connection member may be a bolt, a screw or other suitable structure.

[0115] Please see the attached Figure 6 The present application also provides a flipping device for flipping a hopper during manual welding of small parts. The flipping device includes the fixture described above, a rotating mechanism 4, and a lifting mechanism 5. The rotating mechanism 4 includes a first rotating platform 41 and a second rotating platform 42. The fixture mounting frame 1 is mounted on the first rotating platform 41. The rotation axis of the first rotating platform 41 is perpendicular to the rotation axis of the second rotating platform 42. The lifting mechanism 5 is capable of driving the rotating mechanism 4 to move up and down.

[0116] Since the flipping device of the present application has the clamp described above, the beneficial effects of the flipping device brought by the clamp can be found above and will not be repeated here.

[0117] It should be noted that a commercially available L-shaped positioner can be used directly; this L-shaped positioner includes both a lifting mechanism 5 and a rotating mechanism 4. The rotating mechanism 4 is used for Z-axis lifting and lowering, achieving a vertical movement of 400 mm to 1200 mm. The second rotating platform 42 of the rotating mechanism 4 is used for horizontal rotation 360° around the Y axis. The first rotating platform 41 of the rotating mechanism 4 is used for 360° rotation around the Z axis. The fixture is connected to the first rotating platform 41 via a connecting plate 13. The L-shaped positioner drives the first rotating platform 41 to rotate, thereby driving the fixture, and then the hopper 6 to rotate.

[0118] It should be further explained that the mounting platform 11 of the fixture is connected to the connecting plate 13 via a detachable connecting member; and the connecting plate 13 is connected to the first rotating platform 41 via a detachable connecting member.

[0119] To ensure the detachable installation between the mounting platform 11 and the connecting plate 13 , and the detachable installation between the connecting plate 13 and the first rotating platform 41 , the detachable connecting members may be bolts, screws or other suitable structures.

[0120] Furthermore, the position change of the hopper 6 can be planned according to the actual situation to achieve the optimal posture for manual welding of small parts. The position change steps of the L-shaped positioner can be written into the control system, and the hopper 6 can be quickly and reliably flipped manually by pressing buttons on an external console. Depending on the model of the hopper 6, the flipping parameters of the L-shaped positioner can be changed to suit. This structure has a wider range of applications and can be used for manual welding of small parts of 20 different hopper models. It has the characteristics of ultra-high flexibility and has great market promotion and application value.

[0121] Align the discharge port 61 of the hopper 6 with the positioning column 121, and then clamp it with the clamping mechanism 2 and the clamping mechanism 3; the clamp and the hopper 6 move together with the L-shaped positioner, fully realizing the all-round manual welding of the small parts of the hopper 6 without dead angles, and achieving the optimal welding position; at the same time, the clamping mechanism 2 and the clamping mechanism 3 of the present invention are both driven by the servo motor, and the hopper 6 is more stable during the flipping process. Therefore, manual operation is safer, the production line is more efficient, manual labor can better guarantee the welding quality, the structure is more reliable, and it is easier to promote and apply.

[0122] The components and devices involved in this application are only illustrative examples and are not intended to require or imply that they must be connected, arranged, or configured in the manner shown in the accompanying drawings. As will be appreciated by those skilled in the art, these components and devices can be connected, arranged, or configured in any manner. Words such as "including," "comprising," "having," and the like are open-ended words that mean "including but not limited to," and can be used interchangeably therewith. The words "or" and "and" used herein refer to the words "and / or" and can be used interchangeably therewith unless the context clearly indicates otherwise. The word "such as" used herein refers to the phrase "such as but not limited to," and can be used interchangeably therewith.

[0123] It should also be noted that in the device of the present application, each component can be decomposed and / or reassembled, and such decomposition and / or reassembly should be regarded as equivalent solutions of the present application.

[0124] The above description of the disclosed aspects is provided to enable any person skilled in the art to make or use the present application. Various modifications to these aspects will be readily apparent to those skilled in the art, and the general principles defined herein may be applied to other aspects without departing from the scope of the present application. Therefore, the present application is not intended to be limited to the aspects shown herein, but rather to the widest scope consistent with the principles and novel features disclosed herein.

[0125] The above description has been provided for the purpose of illustration and description. Furthermore, this description is not intended to limit the embodiments of the present application to the forms disclosed herein. Although a number of example aspects and embodiments have been discussed above, those skilled in the art will recognize certain variations, modifications, alterations, additions, and sub-combinations thereof.

[0126] The above description is only a preferred embodiment of the present application and is not intended to limit the present application. Any modifications, equivalent replacements, etc. made within the spirit and principles of the present application shall be included in the scope of protection of the present application.

Claims

1. A clamp, characterized in that: Used to fix the hopper when manually welding small parts, including: A mounting frame capable of receiving the hopper; A clamping mechanism, one end of which is fixed to the mounting frame and the other end of which is inserted into the hopper; the portion of the clamping mechanism inserted into the hopper can abut against the inner bottom wall around the discharge port of the hopper to fix the hopper to the mounting frame; The clamping mechanism includes a first driving unit, and a first clamping plate and a second clamping plate inserted into the hopper; the first driving unit can drive the first clamping plate and the second clamping plate to move away from each other, and at the same time drive the first clamping plate and the second clamping plate to move toward the discharge port of the hopper to abut against the inner bottom wall around the discharge port.

2. The clamp according to claim 1, characterized in that The clamp further comprises a clamping mechanism; The clamping mechanism includes a plurality of clamping components; the plurality of clamping components are movable relative to the mounting frame; the plurality of clamping components abut against the outer side wall of the hopper to clamp and fix the hopper to the mounting frame.

3. The clamp according to claim 1, characterized in that A first guide groove is formed on the first clamping plate; from top to bottom, the first guide groove gradually moves away from the second clamping plate; A second guide groove is formed on the second clamping plate; the second guide groove has the same shape as the first guide groove and is disposed opposite to the first guide groove; The clamping mechanism further includes a fixing pin, which is inserted into the first guide groove and the second guide groove respectively; The first driving unit drives the first clamping plate and the second clamping plate to move back and forth from top to bottom, and at the same time the first guide slot and the second guide slot both move along the fixed pin to drive the first clamping plate and the second clamping plate to move away from each other or relatively close to each other.

4. The clamp according to claim 2, characterized in that The clamping assembly comprises: A supporting unit, fixed to the mounting frame; A second driving unit is connected to the supporting unit; the second driving unit includes a driving column capable of telescopic movement; The clamping unit is connected to the driving column and is driven by the driving column to move closer to or away from the hopper.

5. The clamp according to claim 4, characterized in that The support unit includes a support frame and a shield; the shield is arranged on the top of the support frame, and the shield covers the second driving unit; and / or, The clamping unit includes a receiving plate and a clamping column; the receiving plate is fixedly connected to the driving column; the clamping column is arranged on the receiving plate; and / or, The clamping mechanism further includes a guide unit; the clamping unit moves under the guidance of the guide unit; and / or, Reinforcing ribs are provided between the support unit and the mounting frame.

6. The clamp according to claim 5, characterized in that The guide unit comprises: A guide sleeve is fixed to the support unit; the extension direction of the guide sleeve is parallel to the extension direction of the drive column; The guide column is movably arranged in the guide sleeve, and one end of the guide column is fixedly connected to the clamping unit.

7. The clamp according to claim 2, characterized in that There are three clamping assemblies, namely the first clamping assembly, the second clamping assembly and the third clamping assembly; wherein, the first clamping assembly and the second clamping assembly are arranged opposite to each other; the third clamping assembly is arranged on the mid-perpendicular line of the first clamping assembly and the second clamping assembly.

8. The clamp according to any one of claims 1 to 7, characterized in that: The mounting frame (1) comprises: The mounting platform is provided with a communication port; a positioning seat connected to the communication port; Wherein, the discharge port of the hopper is sleeved on the positioning seat; The portion of the positioning seat inserted into the hopper is provided with an outlet; The clamping mechanism is fixed on the mounting platform, passes through the communicating port and is located in the positioning seat; the portion of the clamping mechanism inserted into the hopper can extend out of the outlet.

9. A turning device for turning over the hopper when manually welding small parts, characterized in that: include: The clamp according to any one of claims 1 to 8; The rotating mechanism includes a first rotating platform and a second rotating platform; the mounting frame of the fixture is arranged on the first rotating platform; the rotation axis of the first rotating platform is perpendicular to the rotation axis of the second rotating platform; The lifting mechanism can drive the rotating mechanism to move up and down.

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