Gantry type clamp with supporting plate

Abstract

The utility model relates to a gantry type clamp with a supporting plate, which is mainly used for solving the technical problems that the machining size consistency of the existing motor shell type parts is poor, the parts need to be adjusted for multiple times to be clamped, and the parts are easy to collide with equipment during clamping. The guide rail assembly and the supporting plate assembly are arranged below the gantry frame, when a to-be-machined part is hoisted to the supporting plate assembly, the supporting plate assembly drives the to-be-machined part to move along the guide rail, the complexity of feeding and discharging operation is greatly simplified, the overall labor intensity is reduced by 50%, and the clamping efficiency is improved. The to-be-machined part is embedded in the gantry frame, the two main machining faces of the to-be-machined part protrude out of the front surface and the rear surface of the gantry frame, namely, the clamp base faces, machining of all key features can be completed in the one-time clamping state, and repeated positioning errors caused by secondary clamping are avoided.

Description

Technical Field

[0001] The utility model relates to a gantry clamp, in particular to a gantry type clamp with a supporting plate. Background Art

[0002] With the development of new energy technology, new energy vehicles are becoming more and more popular. The all-in-one motor housing in new energy vehicles is an aluminum alloy die-casting with complex structure, high integration and high precision requirements. This type of housing has high requirements for dimensional accuracy and stability during processing.

[0003] All-in-one motor housings are usually processed using traditional horizontal machining centers. Due to differences in equipment, the sizes obtained by processing with different equipment are different, making it difficult to ensure the consistency of the sizes and meet standardization requirements. In addition, the parts installed on existing equipment require multiple clamping and adjustment, which will also affect the consistency of the parts processing size, and thus easily cause collisions between the parts and the equipment during clamping. Utility Model Content

[0004] The utility model aims to solve the technical problems that the existing motor housing parts have poor consistency in processing dimensions, the parts need to be adjusted multiple times for clamping, and collisions are easy to occur between the parts and the equipment during clamping, thereby proposing a gantry clamp with a support plate.

[0005] In order to solve the above technical problems, the technical solutions provided by the utility model are as follows:

[0006] A gantry type fixture with a support plate, which is special in that it comprises a gantry frame, a positioning pin, a clamping assembly, a support plate assembly and a guide rail assembly;

[0007] The gantry frame includes a bottom plate and a gantry frame vertically arranged on the bottom plate, wherein the gantry frame divides the bottom plate into a loading station located at the front side of the gantry frame and a limiting station located at the rear side of the gantry frame;

[0008] The positioning pin is arranged on the front surface of the gantry, and its central axis is higher than the central axis of the corresponding pin hole on the part to be processed, and is used to guide and position the part to be processed;

[0009] The clamping assembly is arranged on the front surface of the gantry and close to the upper end, and is used to clamp the parts to be processed;

[0010] The pallet assembly includes a pallet and a positioning block arranged on the pallet; the positioning surface of the positioning block matches the outer surface of the part to be processed;

[0011] The guide rail assembly includes two guide rails arranged parallel to each other; the two guide rails are arranged between the tray and the base plate, and are fixedly connected to the base plate and perpendicular to the gantry, and the guide rails are slidably connected to the tray.

[0012] Furthermore, one end of the guide rail close to the gantry extends into the door opening thereof, and one end surface thereof is flush with the rear surface of the gantry;

[0013] One end of the guide rail away from the gantry extends out of the bottom plate.

[0014] Furthermore, the pallet assembly also includes four blocks arranged on the side wall of the pallet and perpendicular to the pallet; the four blocks are dispersedly arranged at the four corners of the pallet to block and fix the parts to be processed.

[0015] Further, the positioning pins include round pins and diamond pins arranged on the front surface of the gantry;

[0016] The round pin is arranged near the lower end of the gantry, and its central axis is higher than the central axis of the corresponding pin hole on the part to be processed, and the height difference between the two is d, 0.1cm≤d≤0.2cm;

[0017] The diamond pin is arranged near the upper end of the gantry, and its central axis is higher than the central axis of the corresponding pin hole on the part to be processed, and the height difference between the two is d.

[0018] Furthermore, the number of the clamping assemblies is two, and they are respectively located on both sides of the rhombus pin;

[0019] Each of the clamping assemblies comprises a hydraulic cylinder disposed on the front surface of the gantry and a clamping plate disposed on the driving end of the hydraulic cylinder;

[0020] One end of the clamping plate is rotatably connected to the driving end of the hydraulic cylinder, and the middle part is rotatably connected to the gantry, so that the other end of the clamping plate can clamp the upper end of the workpiece to be processed under the drive of the hydraulic cylinder.

[0021] Furthermore, the guide rail assembly also includes a limit plate;

[0022] The limiting plate is arranged on a side of one of the guide rails away from the other guide rail, with a lower end thereof vertically connected to the bottom plate and an upper end thereof gap-matched with the side wall of the tray.

[0023] Beneficial effects of the utility model:

[0024] 1. The utility model arranges a guide rail assembly and a pallet assembly under the gantry frame. When the parts to be processed are hoisted onto the pallet assembly, the pallet assembly drives them to move along the guide rail, which greatly simplifies the complexity of loading and unloading operations, reduces the overall labor intensity by 50%, and improves the clamping efficiency.

[0025] 2. In the utility model, the central axes of the round pins and diamond pins arranged on the gantry are higher than the central axes of the corresponding pin holes of the parts to be processed. After the parts to be processed are clamped, due to the gravity factor, the overall force direction of the parts to be processed is downward, and the gaps between the round pins and the corresponding pin holes, and between the diamond pins and the corresponding pin holes are automatically zeroed, and the consistency of the processing dimensions is effectively guaranteed.

[0026] 3. In the utility model, the parts to be processed are embedded in the gantry frame, and the two main processing surfaces of the parts to be processed protrude from the front and rear surfaces of the gantry, i.e., the base surfaces of the fixture, so that all key feature processing can be completed in one clamping state, avoiding repeated positioning errors caused by secondary clamping. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 It is a front view of an embodiment of a gantry type clamp with a support plate of the utility model;

[0028] Figure 2 It is a side view of an embodiment of a gantry type clamp with a support plate of the utility model;

[0029] Figure 3 It is a top view of an embodiment of a gantry type clamp with a support plate of the utility model;

[0030] Figure 4 It is a side view of a loading state of a gantry type clamp with a support plate in an embodiment of the utility model;

[0031] Figure 5 It is a side view of a clamping state of a part to be processed in an embodiment of a gantry-type clamp with a support plate of the utility model.

[0032] Description of reference numerals:

[0033] 1-gantry frame, 11-gantry, 12-base plate; 2-locating pin, 21-round pin, 22-diamond pin; 3-clamping assembly, 31-hydraulic cylinder, 32-clamping plate; 4-pallet assembly, 41-pallet, 42-stopper, 43-locating block; 5-guide rail assembly, 51-guide rail, 52-limiting plate, 6-parts to be processed. DETAILED DESCRIPTION

[0034] The utility model is further described below in conjunction with the accompanying drawings and embodiments.

[0035] The utility model discloses a gantry type fixture with a supporting plate, such as Figure 1As shown, it includes a gantry frame 1, a positioning pin 2, a clamping assembly 3, a support plate assembly 4 and a guide rail assembly 5. The guide rail assembly 5 is arranged at the bottom of the gantry frame 1, and the support plate assembly 4 is installed on the guide rail assembly 5 to slide back and forth. There are two clamping assemblies 3, which are respectively installed at the two ends above the gantry frame 1, and are used to clamp the workpiece 6 to be processed to achieve loading and unloading. The positioning pin 2 is located at the upper end of the gantry frame 11, and is used to guide and position the workpiece 6 to be processed.

[0036] like Figure 1 , Figure 4 As shown, the gantry frame 1 includes a bottom plate 12 and a gantry 11, and the gantry 11 is perpendicular to the bottom plate 12; the gantry 11 divides the bottom plate 12 into a loading station located at the front side of the gantry 11 and a limiting station located at the rear side of the gantry 11. The front and rear surfaces of the gantry 11 serve as the fixture base surface of the fixture.

[0037] like Figure 3 , which is a top view of the fixture; the guide rail assembly 5 includes two guide rails 51 arranged parallel to each other and a limit plate 52;

[0038] Two guide rails 51 are arranged in parallel between the loading station of the base plate 12 and the pallet 41, and are fixedly connected to the base plate 12 and perpendicular to the gantry 11. The sliders of the guide rails 51 are fixedly connected to the pallet 41; each guide rail 51 extends into the interior of the gantry 11 close to the gantry 11, and one end face thereof is flush with the rear surface of the gantry 11; one end of the guide rail 51 away from the gantry 11 extends out of the base plate 12.

[0039] The limiting plate 52 is arranged on a side of one of the guide rails 51 away from the other guide rail 51, with its lower end vertically connected to the bottom plate 12 and its upper end being in clearance with the side wall of the tray 41, so as to limit the moving track of the tray 41 and prevent it from deflecting when it moves on the guide rail 51;

[0040] like Figure 2 , Figure 3 As shown, the support plate assembly 4 includes a tray 41, a positioning block 43 and a stopper 42. The tray 41 is fixedly connected to the sliders on the two guide rails 51, and a handle is provided at one end of the tray 41 away from the gantry 11.

[0041] There are four stoppers 42 , which are arranged on the side walls of the tray 41 and dispersed at the four corners of the tray 41 , and play a role in resisting and fixing the workpiece 6 to be processed.

[0042] There are multiple positioning blocks 43, which are arranged on the side of the tray 41, and can be flexibly adjusted according to the structure of the part 6 to be processed; the positioning surface of the positioning block 43 matches the outer surface of the part 6 to be processed, which plays a role of profiling and preventing mistakes, and avoids mis-installation. In this embodiment, there are two positioning blocks 43, which are respectively arranged on two opposite sides of the tray 41. For the parts 6 to be processed with larger volume and weight, the pallet assembly 4 can simplify the loading and unloading actions, reduce the overall labor intensity by 50%, and improve the clamping efficiency by more than 30%.

[0043] The positioning pin 2 includes a round pin 21 and a diamond pin 22; the round pin 21 and the diamond pin 22 are respectively matched with the pin holes on the workpiece 6 to be processed. The round pin 21 is conical with an angle of about 15° and is arranged near the lower end of the gantry 11; the sharp corners of the round pin 21 are rounded to avoid the risk of scratching the pin hole; Figure 4 As shown, the central axis of the round pin 21 is higher than the central axis of the corresponding pin hole on the part to be processed 6, and the height difference between the two is d, 0.1cm≤d≤0.2cm. The rhombus pin 22 is arranged near the upper end of the gantry 11, and the central axis of the rhombus pin 22 is higher than the central axis of the corresponding pin hole on the part to be processed 6, and the height difference between the two is d. During the feeding process, the round pin 21 and the rhombus pin 22 play a guiding and positioning role for the corresponding pin holes on the part to be processed 6. The positioning block 43 can ensure that the corresponding pin holes on the part to be processed 6 are lower than the heights of the round pin 21 and the rhombus pin 22, respectively.

[0044] There are two clamping assemblies 3, which are respectively located on both sides of the rhombus pin 22; a tool setting point is also provided between the two sets of clamping assemblies 3 to calibrate the position of the tool used for processing. Each clamping assembly 3 includes a hydraulic cylinder 31 provided on the front surface of the gantry 11 and a clamping plate 32 provided at the driving end of the hydraulic cylinder 31; one end of the clamping plate 32 is rotatably connected to the driving end of the hydraulic cylinder 31, and the middle part is rotatably connected to the gantry 11, so that the other end of the clamping plate 32 can clamp the upper end of the workpiece 6 to be processed under the drive of the hydraulic cylinder 31.

[0045] Loading process: Figure 4 , Figure 5As shown, the pallet 41 is pulled out of the gantry 11, and the part to be processed 6 is hoisted and placed on the pallet 41, and the part to be processed 6 is fixed by four blocks 42. The pallet 41 is pushed, and the pallet 41 drives the part to be processed 6 to move along the guide rail 51, gradually approaching the fixture base surface A of the gantry 11. The hydraulic cylinder 31 drives the clamping plate 32 to clamp the part to be processed 6, and the part to be processed 6 is lifted by a distance d, so that the center axis of the pin hole is aligned with the center axis of the round pin 21. At the same time, the part to be processed 6 is separated from the pallet 41, avoiding positioning over-constraint. As the pallet 41 moves toward the gantry 11, the round pin 21 and the diamond pin 22 are respectively inserted into the corresponding pin holes on the part to be processed 6. Due to the gravity factor, the overall force direction of the part to be processed 6 is downward, and the gaps between the pin hole and the round pin 21, and the gaps between the pin hole and the diamond pin 22 are automatically zeroed, and the processing consistency is effectively guaranteed. The part 6 to be processed is embedded in the gantry frame 1 of the fixture body, and the two main processing surfaces of the part 6 to be processed protrude from the front and rear surfaces of the gantry. All key feature processing can be completed in one clamping state, avoiding repeated positioning errors caused by secondary clamping.

[0046] Unloading process: the hydraulic cylinder 31 drives the clamping plate 32 to loosen, the handle of the tray 41 is manually pulled, the pin hole is separated from the round pin 21 and the diamond pin 22, the part 6 to be processed falls back onto the tray 41, and is hoisted off the line.

Claims

1. A gantry type fixture with a support plate, characterized in that: It comprises a gantry frame (1), a positioning pin (2), a clamping assembly (3), a support plate assembly (4) and a guide rail assembly (5); The gantry frame (1) comprises a bottom plate (12) and a gantry frame (11) vertically arranged on the bottom plate (12), wherein the gantry frame (11) divides the bottom plate (12) into a loading station located at the front side of the gantry frame (11) and a limiting station located at the rear side of the gantry frame (11); The positioning pin (2) is arranged on the front surface of the gantry (11), and its central axis is higher than the central axis of the corresponding pin hole on the part to be processed (6), and is used to guide and position the part to be processed (6); The clamping assembly (3) is arranged on the front surface of the gantry (11) and close to the upper end, and is used to clamp the part to be processed (6); The support plate assembly (4) comprises a tray (41) and a positioning block (43) arranged on the tray (41); a positioning surface of the positioning block (43) matches the outer surface of the part (6) to be processed; The guide rail assembly (5) comprises two guide rails (51) arranged parallel to each other; the two guide rails (51) are arranged between the tray (41) and the loading station, and are fixedly connected to the bottom plate (12), perpendicular to the gantry (11), and the guide rails (51) are slidably connected to the tray (41).

2. A gantry type fixture with a support plate according to claim 1, characterized in that: One end of the guide rail (51) close to the gantry (11) extends into the door opening thereof, and an end surface of the guide rail (51) is flush with the rear surface of the gantry (11); One end of the guide rail (51) away from the gantry (11) extends out of the bottom plate (12).

3. A gantry type fixture with a support plate according to claim 2, characterized in that: The support plate assembly (4) further comprises four stoppers (42) arranged on the side wall of the tray (41) and perpendicular to the tray (41); the four stoppers (42) are dispersedly arranged at the four corners of the tray (41) and are used to block and fix the parts to be processed (6).

4. A gantry type fixture with a support plate according to claim 3, characterized in that: The positioning pin (2) comprises a round pin (21) and a diamond pin (22) which are arranged on the front surface of the gantry (11); The round pin (21) is arranged near the lower end of the gantry (11), and its central axis is higher than the central axis of the corresponding pin hole on the part to be processed (6), and the height difference between the two is d, 0.1cm≤d≤0.2cm; The diamond pin (22) is arranged near the upper end of the gantry (11), and its central axis is higher than the central axis of the corresponding pin hole on the part to be processed (6), and the height difference between the two is d.

5. A gantry type fixture with a support plate according to claim 4, characterized in that: The number of the clamping assemblies (3) is two, and they are respectively located on both sides of the rhombus pin (22); Each of the clamping assemblies (3) comprises a hydraulic cylinder (31) arranged on the front surface of the gantry (11) and a clamping plate (32) arranged at the driving end of the hydraulic cylinder (31); One end of the clamping plate (32) is rotatably connected to the driving end of the hydraulic cylinder (31), and the middle part is rotatably connected to the gantry (11), so that the other end of the clamping plate (32) can clamp the upper end of the part to be processed (6) under the drive of the hydraulic cylinder (31).

6. A gantry type fixture with a support plate according to claim 5, characterized in that: The guide rail assembly (5) further comprises a limiting plate (52); The limiting plate (52) is arranged on a side of one of the guide rails (51) away from the other guide rail (51), with its lower end vertically connected to the bottom plate (12) and its upper end gap-matched with the side wall of the tray (41).

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