Forklift clutch pump seat welding tool

Abstract

This invention discloses a welding fixture for a forklift clutch pump base, comprising a robotic arm mounted on the top of a device base and a clutch worktable and a master pump base worktable arranged around it, with a protective ring surrounding these worktables. The master pump base worktable is characterized by having a tilting mechanism and a direct-push cylinder. The tilting mechanism is L-shaped, and the telescopic shaft end of the direct-push cylinder is movably connected to the tilting mechanism. A positioning structure has concentric holes at its bottom, and a fixing block has a positioning block at its bottom. The positioning block and the concentric holes are concentrically positioned. During welding, the positioning block and the concentric holes are concentrically positioned to fix a pin, ensuring the positional accuracy of the pins, increasing the yield of the pins, and greatly assisting in the later assembly of the clutch. Simultaneously, the movable shaft limits the positioning mechanism and the fixing component, increasing the concentricity accuracy between the positioning block and the concentric holes, further improving the positional accuracy of the pins.

Description

Technical Field

[0001] This invention relates to the field of welding positioning device technology, and specifically to a welding fixture for a forklift clutch pump seat. Background Technology

[0002] In the current forklift mechanical clutch welding process, most of the time-consuming and time-consuming manual fixation of the parts to be welded is required. Welding deformation is also prone to occur during welding, resulting in unstable welding quality. The small number of mechanical fixation devices cannot simultaneously weld the brake pedal and clutch pedal of the clutch because there are slight differences in the details of the two pedals. Therefore, the same machine cannot achieve the welding and positioning of the two pedals.

[0003] Meanwhile, most existing devices use a multi-axis method to weld the clutch pump seat in stages. This structure is time-consuming, costly, and cannot properly position the shaft pin of the pump seat, resulting in different round holes on the shaft pin. This leads to the clutch being unable to be assembled with the pump seat during the later assembly process, resulting in a low yield.

[0004] Therefore, this invention proposes a welding fixture for a forklift clutch pump seat. It utilizes a flipping mechanism to perform limiting welding on the pump seat components. By relying on the concentric arrangement of the positioning block and the concentric hole, the positioning block and the concentric hole fix the pin during welding, ensuring higher positional accuracy between the pins and increasing the yield rate of the pins. This greatly assists in the later assembly of the clutch. Simultaneously, the movable shaft limits the positioning mechanism and the fixing components, keeping them on a horizontal line, increasing the concentricity accuracy between the positioning block and the concentric hole, and facilitating improved positional accuracy of the pins. Summary of the Invention

[0005] The purpose of this invention is to provide a welding fixture for a forklift clutch pump seat in order to solve the above-mentioned problems and overcome the defects of the prior art, as detailed below.

[0006] To achieve the above objectives, the present invention provides the following technical solution:

[0007] This invention provides a welding fixture for a forklift clutch pump base, comprising a robotic arm mounted on the top of a device base and a clutch workbench and a master pump base workbench arranged around it, with a protective ring surrounding these workbenches. The master pump base workbench is characterized by having a tilting mechanism and a direct-push cylinder. The tilting mechanism is L-shaped, and the end of the telescopic shaft of the direct-push cylinder is movably connected to the tilting mechanism. The base portion of the tilting mechanism is flush with the master pump base workbench, and its end is movably connected to the master pump base workbench via a shaft. A support post is provided beside the shaft. A fixing plate is provided on the upper surface of the tilting mechanism, and multiple "7"-shaped positioning structures are provided on the surface of the fixing plate. A clamping cylinder is provided on one side of the movable shaft. Each of the multiple positioning structures has a fixing component on the same side, and a positioning block is provided at the bottom of each fixing component. The multiple fixing components are connected by a movable shaft, which passes through the positioning structure. The bottom of the positioning structure has concentric circular holes.

[0008] Furthermore, the main pump base workbench is also equipped with a pump base, which consists of a base plate, a spring hanging plate, a pin shaft, and a fixed seat. The flipping mechanism rotates around the shaft to press down the base plate.

[0009] Furthermore, the bottom of the main pump base workbench is also provided with a cylinder assembly that passes through the edge of the clamping base plate of the main pump base workbench.

[0010] Furthermore, the positioning block is concentrically positioned with the concentric circular hole at the bottom of the positioning structure.

[0011] Furthermore, a gap is provided between the positioning structure and the flipping mechanism, and a spring hanging plate is provided in the gap. A clamping mechanism is provided on the back of the flipping mechanism. The clamping part of the clamping mechanism passes through the flipping mechanism and clamps the spring hanging plate for limiting.

[0012] Furthermore, the bottom surface of the flipping mechanism can partially fit against the bottom plate surface of the pump base.

[0013] Furthermore, the one closest to the clamping cylinder among the plurality of fixing members is provided with a protrusion and a positioning pin, the protrusion being connected to the telescopic rod of the clamping cylinder.

[0014] Furthermore, the number of positioning structures and fasteners corresponds to the number of pins, and the pins are located between the corresponding positioning structures and fasteners.

[0015] Furthermore, the main pump base workbench is also equipped with a front push cylinder, and the front push component of the front push cylinder is fixed by a pin limit.

[0016] Furthermore, the clutch worktable has two ends shaped like "<>" corresponding to the shape of the clutch connecting rod. The clutch worktable is provided with a positioning shaft, which is sleeved on the positioning sleeve of the clutch. The clutch worktable is provided with a positioning mechanism to fix the clutch along the positioning sleeve, pedal and connecting rod of the clutch.

[0017] The beneficial effects of this invention are as follows:

[0018] 1. The positioning structure has concentric holes at the bottom, and the fixing component has a positioning block at the bottom. The positioning block and the concentric holes are concentrically set. During the welding of the pin, the positioning block and the concentric holes are concentrically set to fix the pin, which can better ensure the positional accuracy between the pins, increase the yield of the pins, and greatly help the later assembly of the clutch. At the same time, the movable shaft limits the positioning mechanism and the fixing component, keeping them on a horizontal line at all times, increasing the concentricity accuracy between the positioning block and the concentric holes, and making it easier to improve the positional accuracy of the pin.

[0019] 2. This invention utilizes a rotating mechanism to perform welding on the pump base. The assembly effect can be achieved by relying on uniaxial movement. Compared with the existing technology, which requires multi-directional moving devices to detach the processed parts, this is more convenient, saves more time, and increases work efficiency.

[0020] 3. The two sides of the clutch worktable are shaped like "<>" and correspond to the shape of the clutch connecting rod. The positioning mechanism is distributed along the track of the clutch positioning sleeve, connecting rod and pedal. The clamping assembly is used to limit the small parts. During the welding process of the clutch, the brake foot pedal and clutch foot pedal components can be welded on both sides at the same time, and the brake foot pedal and clutch foot pedal components in the clutch are formed at the same time.

[0021] 4. The present invention sets up a clutch workbench and a master cylinder base workbench around the device base, so that the accessories of the clutch and master cylinder can be processed in turn on one device using a robotic arm, and processed one by one according to the order of loading by the workers, thus accelerating the progress of the welding process. Attached Figure Description

[0022] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0023] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0024] Figure 2This is a top view of the main pump base workbench of the present invention;

[0025] Figure 3 This is an overall schematic diagram of the rotating components of the main pump base worktable of the present invention;

[0026] Figure 4 This is a schematic diagram of the flipping mechanism of the present invention;

[0027] Figure 5 This is a schematic diagram of the fixing plate and positioning structure of the present invention;

[0028] Figure 6 This is a schematic diagram of the rotating arm structure of the present invention;

[0029] Figure 7 This is a schematic diagram of the fastener structure of the present invention;

[0030] Figure 8 This is a schematic diagram of the clutch worktable structure of the present invention.

[0031] The reference numerals in the attached drawings are explained as follows: 1. Device base; 2. Robotic arm; 3. Clutch worktable; 4. Main pump base worktable; 5. Protective ring; 6. Forward push cylinder; 7. Direct push cylinder; 8. Tilting mechanism; 801. Shaft; 802. Support pile; 9. Fixing plate; 901. Positioning structure; 10. Tightening cylinder; 11. Fixing component; 1101. Protrusion; 1102. Positioning block; 1103. Positioning pin; 12. Movable shaft; 13. Clamping mechanism; 14. Pump base; 1401. Base plate; 1402. Spring hanging plate; 1403. Pin shaft; 1404. Fixed seat; 15. Clutch; 1501. Connecting rod; 1502. Pedal; 1503. Positioning sleeve. Detailed Implementation

[0032] To make the objectives, technical solutions, and advantages of this invention clearer, the technical solutions of this invention will be described in detail below. Obviously, the described embodiments are merely some embodiments of this invention, and not all embodiments. Based on the embodiments of this invention, all other implementation methods obtained by those skilled in the art without creative effort are within the scope of protection of this invention.

[0033] See Figures 1-7 As shown, this invention provides a welding fixture for a forklift clutch pump seat. This invention separates the clutch 15 and pump seat 14 of the clutch pump seat for welding. Clutch workbenches and master pump seat workbenches are randomly arranged on four sides around the base of the device.

[0034] Example 1: When the direct-push cylinder 7 is in its original position, the flipping mechanism 8 is in an "L" shape. The inner corner of the flipping mechanism 8 is supported by the support pile 802. The base plate 1401 is placed on the main pump base worktable 4 and positioned by the cylinder assembly. The cylinder part of the cylinder assembly is located on the bottom surface of the main pump base worktable 4, and the clamping part is located above the top of the main pump base worktable 4. The cylinder part drives the clamping part to move down and clamp the edge of the base plate 1401 of the pump seat 14. Then, the spring hanging plate 1402 is placed on the flipping mechanism 8 and fixed by the clamping mechanism 13. The cylinder part of the clamping mechanism 13 is located on the back of the flipping mechanism 8. The clamping part of the clamping mechanism 13 passes through the flipping mechanism 8 and clamps the spring hanging plate 1402 for limiting.

[0035] The telescopic shaft end of the direct-push cylinder 7 is movably connected to the tilting mechanism 8. The direct-push cylinder 7 extends to push the tilting mechanism 8 to move. The end of the tilting mechanism 8 is movably connected to the main pump base worktable 4 via a shaft 801. When the tilting mechanism 8 is pushed, it is limited by the shaft 801, rotates around the center of the shaft 801, and then presses against the main pump base.

[0036] Using the pivot point of shaft 801, the flipping mechanism 8 is rotated to the welding position. Then, the number of pins 1403 required by the product is placed. At the position corresponding to the pins 1403, the flipping mechanism 8 is provided with a fixing plate 9 and a clamping cylinder 10. The fixing plate 9 is provided with a positioning structure 901. On the same side of the positioning structure 901, there is a fixing part 11. The fixing part 11 is connected by a movable shaft 12. The movable shaft 12 passes through the positioning structure 901. The bottom of the positioning structure 901 is provided with concentric circular holes. The number of positioning structures 901 and fixing parts 11 corresponds to the number of pins 1403.

[0037] The fixing member 11 closest to the clamping cylinder 10 is provided with a protrusion 1101 and a positioning pin 1103. The protrusion 1101 is connected to the telescopic rod of the clamping cylinder 10. The positioning pin 1103 on the fixing member 11 is inserted into the positioning hole of the corresponding pin 1403 to position the pin 1403 and avoid errors. The surface of the positioning pin 1103 is chamfered.

[0038] The bottom of the fastener 11 is provided with a positioning block 1102, which is concentrically positioned with the concentric circular hole, and the surface of the positioning block 1102 is also chamfered.

[0039] The pin 1403 is located between the positioning structure 901 and the fixing member 11. The clamping cylinder 10 operates to push the fixing member 11 at the protrusion 1101 to move. The fixing member 11 and the movable shaft 12 move back and forth on the positioning mechanism side. The positioning block 1102 of the fixing member 11 passes through the round hole on the pin 1403 and is inserted into the concentric round hole. Then the fixing member 11 clamps the pin 1403. Then the mechanical arm 2 welds the base, the spring hanging plate 1402 and the pin 1403 together.

[0040] The forward-pushing cylinder 6 extends and is inserted into the fixed seat 1404. The fixed seat 1404 is limited by a pin at the pushing part of the forward-pushing cylinder 6 and clamped by the fixed cylinder, thus completing the positioning of the product part. After welding, the fixed cylinder releases the fixed seat 1404, the forward-pushing cylinder 6 retracts, the clamping mechanism 13 releases the spring hanging plate 1402, the pressing cylinder 10 retracts and releases the off-shaft 1403, the direct-pushing cylinder 7 retracts, the flipping mechanism 8 rotates away from the product positioning surface, and at the same time, the cylinder assembly of the fixed base is released, allowing the workpiece to be removed.

[0041] The present invention utilizes the rotating mechanism 8 to perform welding work on the pump base 14, which is more convenient than the multi-directional moving device in the prior art, and can also save more time and increase work efficiency.

[0042] The positioning structure 901 has a concentric hole at the bottom, and the fixing part 11 has a positioning block 1102 at the bottom. The positioning block 1102 and the concentric hole are set concentrically. In the welding of the pin 1403, the concentric setting of the fixed pin 1403 can better ensure the concentricity of the pins 1403, increase the accuracy of the pins 1403 in the finished product, and greatly help the later assembly of the clutch 15.

[0043] Example 2:

[0044] according to Figure 8 As shown, the two ends of the clutch worktable 3 are shaped like "<>" and correspond to the shape of the connecting rod 1501 of the clutch 15. The clutch worktable 3 is provided with a positioning shaft. The positioning sleeve 1503 of the clutch 15 is sleeved on the positioning shaft. Then, the clutch 15 is rotated to the welding position, so that the clutch 15 is close to the edge of the clutch worktable 3. Then, the positioning mechanism on the clutch worktable 3 fixes the clutch 15 as a whole. The positioning mechanism is distributed along the trajectory of the positioning sleeve 1503, the connecting rod 1501 and the pedal 1502 of the clutch 15, and fixes the positioning sleeve 1503, the connecting rod 1501 and the pedal 1502 respectively. A clamping assembly is set on the clutch worktable 3 to limit the small parts. Then, the robotic arm 2 is used to weld the positioning sleeve 1503, the connecting rod 1501, the pedal 1502 and other small parts.

[0045] During the welding process of clutch 15, the brake pedal component and clutch pedal component can be welded on both sides at the same time, thus forming the brake pedal and clutch pedal components in clutch 15.

[0046] The present invention sets up a clutch workbench and a master cylinder base workbench around the device base, so that the clutch and master cylinder components can be processed in turn on one device using a robotic arm 2. The processing sequence is based on the order in which the workers load the components. This structure can accelerate the welding process and increase work efficiency.

[0047] The above description is merely a specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in the present invention should be included within the scope of protection of the present invention. Therefore, the scope of protection of the present invention should be determined by the scope of the claims.

Claims

1. A welding fixture for a forklift clutch pump base, characterized in that: The tooling includes a mechanical arm (2) mounted on the top of a device base (1) and a clutch worktable (3) and a master pump base worktable (4) mounted around the mechanical arm (2). A protective ring (5) surrounds the clutch worktable (3) and the master pump base worktable (4). The master pump base worktable (4) is characterized in that it is used to place a pump seat, and the pump seat (14) is composed of a base plate (1401), a spring hanging plate (1402), a pin (1403), and a fixed seat (1404). The master pump base worktable (4) is equipped with a flipping mechanism (8), a direct-push cylinder (7), a cylinder assembly, and a forward-push cylinder (8). 6) The cylinder part of the cylinder assembly is located on the bottom surface of the main pump base workbench (4), and the clamping part of the cylinder assembly is located above the top of the main pump base workbench (4). The cylinder assembly is used to clamp the edge of the base plate (1401). The pushing part at the front end of the forward push cylinder (6) is limited to the fixed seat (1404) by a pin. The end of the telescopic shaft of the direct push cylinder (7) is movably connected to the flipping mechanism (8). The end of the flipping mechanism (8) is movably connected to the main pump base workbench (4) by a shaft (801). A support pile (802) is provided next to the shaft (801).When the direct-push cylinder (7) is in its original position, the flipping mechanism (8) is in an "L" shape. The inner corner of the flipping mechanism (8) is supported by the support pile (802). The direct-push cylinder (7) extends to push the flipping mechanism (8) to move. The flipping mechanism (8) rotates around the shaft (801) to press against the base plate (1401). The upper half of the flipping mechanism (8) is provided with a fixing plate (9). The surface of the fixing plate (9) is provided with multiple "7"-shaped positioning structures (901). Each of the positioning structures (901) has a fixed plate (9) on its surface. Each of the same side has a fixing member (11), and the fixing members (11) are connected by a movable shaft (12). The movable shaft (12) passes through the positioning structure (901). A clamping cylinder (10) is provided on one side of the movable shaft (12). The bottom of the positioning structure (901) is provided with a concentric circular hole. The bottom of the fixing member (11) is provided with a positioning block (1102). The positioning block (1102) is concentrically arranged with the concentric circular hole at the bottom of the positioning structure (901). The positioning structure (901) The number of fasteners (11) corresponds to the number of pins (1403). The fastener (11) closest to the clamping cylinder (10) is provided with a protrusion (1101) and a positioning pin (1103). The protrusion (1101) is connected to the telescopic rod of the clamping cylinder (10). The pin (1403) is located between the corresponding positioning structure (901) and the fastener (11). The positioning block (1102) of the fastener (11) can be inserted into a concentric circle through the round hole on the pin (1403). Inside the hole, the positioning pin (1103) on the fixing member (11) can be inserted into the positioning hole of the corresponding pin (1403). There is a gap between the positioning structure (901) and the flipping mechanism (8), and a spring hanging plate (1402) is set in the gap. The back of the flipping mechanism (8) is provided with the cylinder part of the clamping mechanism (13). The clamping part of the clamping mechanism (13) passes through the flipping mechanism (8) and clamps the spring hanging plate (1402), thus limiting the spring hanging plate (1402).

2. The welding fixture for a forklift clutch pump base according to claim 1, characterized in that: The bottom surface of the flipping mechanism (8) can be partially attached to the surface of the base plate (1401) of the pump seat (14).

3. The welding fixture for a forklift clutch pump base according to claim 1, characterized in that: The clutch worktable (3) has "<>" shaped sides at both ends, corresponding to the shape of the connecting rod (1501) of the clutch (15). The clutch worktable (3) is provided with a positioning shaft, which is sleeved on the positioning sleeve (1503) of the clutch (15). The clutch worktable (3) is also provided with a positioning mechanism, which is distributed along the trajectory of the positioning sleeve (1503), connecting rod (1501), and pedal (1502) of the clutch (15).

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