Compressor diaphragm hole processing clamp

Abstract

The present application relates to the technical field of compressor cylinder head, and particularly relates to a compressor partition hole machining clamp, which comprises a support, a positioning mechanism, a fixing mechanism and a power mechanism, four groups of the positioning mechanism are uniformly distributed on the support, each group of the positioning mechanism comprises an arbor and a clip sleeved on the arbor, and a workpiece is sleeved on the clip; the fixing mechanism is arranged correspondingly to the positioning mechanism, and comprises a mounting plate arranged outside the arbor, a plurality of groups of support assemblies arranged in a circumferential array on the mounting plate and a pressing assembly arranged correspondingly to the support assemblies; the power mechanism is installed on the support, and drives the support assemblies, the positioning mechanism and the pressing assembly to act in turn to clamp the workpiece; the workpiece is placed on the plurality of groups of support units, the support surfaces of two groups of the turning plates in each group of the support units can be rotated from the opposite arrangement to the upward arrangement to support the workpiece, and after the workpiece is supported, the positioning mechanism and the pressing assembly fix the workpiece, thereby solving the problem of poor workpiece positioning precision in the prior art.

Description

Technical Field

[0001] This invention relates to the field of compressor partition technology, and in particular to a clamping fixture for machining compressor partition holes. Background Technology

[0002] A compressor is a driven fluid machine that raises low-pressure gas to high-pressure gas; it is the heart of a refrigeration system. The compressor baffle is one of the core components of a compressor.

[0003] Currently, the following pain points exist in the processing of compressor partitions: 1. Low efficiency per station: Traditional fixtures can only process one workpiece at a time, which cannot match the processing capacity of multi-axis machine tools; 2. Risk of clamping deformation: Rigid clamping can easily cause deformation of thin-walled partitions, affecting the accuracy of hole positions; 3. Insufficient automation: Workpiece loading and unloading rely on manual labor, and the ejection mechanism and clamping action are not integrated; 4. Poor positioning accuracy: Iron filings easily adhere to the workpiece support surface, which affects the positioning accuracy. In conclusion, there is an urgent need for a multi-station fixture that can perform rapid clamping. Summary of the Invention

[0004] To address the above problems, this invention provides a compressor partition hole machining fixture, which places the workpiece on several sets of support units. The support surfaces of the two sets of flip plates in each support unit can be rotated from being relatively arranged to facing upwards to support the workpiece. After the workpiece is supported, the positioning mechanism and the pressing assembly fix the workpiece, thus solving the technical problem of poor workpiece positioning accuracy in the prior art. To achieve the above objectives, the present invention provides the following technical solution: A fixture for machining compressor partition holes, comprising: support; The positioning mechanism comprises four sets of positioning mechanisms evenly distributed on the bracket. Each set of positioning mechanisms includes a spindle and a clip sleeved on the spindle, with the workpiece sleeved on the clip. A fixing mechanism, corresponding to the positioning mechanism, includes a mounting plate disposed on the outside of the mandrel, a plurality of support components arranged in a circumferential array on the mounting plate, and pressing components corresponding to the support components; and A power mechanism, mounted on the bracket, drives the support assembly, the positioning mechanism, and the pressing assembly to clamp the workpiece in sequence. The support assembly includes two sets of support units and scraper units corresponding to the support units. Each support unit includes two sets of rotatably arranged flaps. The support surfaces of the two sets of flaps can be rotated from being opposite to each other to facing upwards to support the workpiece. The scraper units can scrape the support surfaces of the flaps.

[0005] As an improvement, the support includes a base plate, a plurality of vertical plates disposed on the base plate, and a panel mounted on the plurality of vertical plates.

[0006] As an improvement, the mandrel includes a chassis and a tapered shaft coaxially arranged with the chassis, the tapered shaft being smaller at the top and larger at the bottom.

[0007] As an improvement, the magazine is designed with an outer circle and an inner cone shape, and its interior is adapted to the cone shaft. Several sets of expansion joints are evenly provided on the side wall.

[0008] As an improvement, the free end of the flap is wedge-shaped.

[0009] As an improvement, the support unit further includes a mounting base, a rotating base disposed in the mounting base for mounting the flap, a connecting rod rotatably mounted on the outside of the flap, a vertical rod slidably disposed on the mounting plate and connected to the connecting rod, a receiving groove formed at the bottom of the mounting plate, a baffle a disposed in the receiving groove, a spring a sleeved on the vertical rod and located at the bottom of the baffle a and the receiving groove, and a sealing plate sealing the receiving groove.

[0010] As an improvement, the scraper unit includes a chip removal groove formed in the middle of the rotating base and a movable frame slidably disposed in the chip removal groove; the upper crossbeam of the movable frame is in contact with the support surface of the flip plate.

[0011] As an improvement, the pressing assembly includes a fixed base disposed at the bottom of the mounting plate, a baffle b slidably disposed within the fixed base, a through hole opened on the mounting plate, a movable rod coaxially fixed with the baffle b and passing through the through hole, a spring b sleeved on the movable rod and located between the baffle b and the fixed base, a pressure plate disposed on the movable rod, a guide rod disposed on the side of the movable rod, and a guide groove opened on the inner wall of the through hole, wherein the guide rod is slidably disposed within the guide groove.

[0012] As an improvement, the power mechanism includes a hydraulic cylinder located directly below the positioning mechanism, a pressure rod unit connected to the power output end of the hydraulic cylinder and vertically inserted into the spindle, a movable plate connected to the power output end of the hydraulic cylinder, a fixed rod located on the movable plate and correspondingly connected to the movable frame, an elongated groove on the movable plate correspondingly accommodating the movable rod, a baffle a located at the bottom of the movable rod and capable of abutting against the movable plate, a circular hole on the movable plate correspondingly accommodating the vertical rod, a baffle b located at the bottom of the vertical rod, and a spring c located on the baffle b and capable of abutting against the bottom of the movable plate.

[0013] As an improvement, the pressure rod unit includes a pull rod a passing through the spindle, a pull rod b connected to the power output end of the hydraulic cylinder and elastically connected to the pull rod a, and a pressure cap disposed at the top of the pull rod a and capable of abutting against the clip.

[0014] The beneficial effects of this invention are as follows: (1) In this invention, a positioning mechanism is used to position the partition plate and the inner support is used in conjunction with the pressing component to press it in the circumferential direction, so that the partition plate is fixed more firmly, which can prevent the workpiece from moving during subsequent drilling and improve the hole position accuracy. (2) In this invention, two sets of support units work together with a set of pressing components to press the edge of the workpiece, so that the force at the edge of the partition is more uniform, ensuring that the workpiece is clamped while preventing deformation. (3) In this invention, the two sets of flaps in the support unit are rotatable. In the initial position, the support surfaces of the two sets of flaps are set opposite to each other. When the workpiece is placed, the two sets of flaps rotate, the support surfaces rotate to face the workpiece and contact the workpiece. The support surfaces of the flaps are hidden before contacting the workpiece, which can prevent iron filings from adhering to the support surfaces and ensure the positioning accuracy of the workpiece. (4) Before the two sets of flip plates rotate to support the workpiece, the scraper unit will scrape the support surface of the two sets of flip plates to further ensure that there are no iron filings attached to the support surface of the flip plates, and further improve the positioning accuracy of the workpiece. (5) When the flap rotates in this invention, its end will contact the workpiece. The area through which the end of the flap passes is the area in contact with the support surface of the flap, thereby ensuring that no iron filings adhere to the contact area between the workpiece and the support surface of the flap, and further improving the positioning accuracy of the workpiece. (6) In this invention, after the workpiece is processed, the two sets of flip plates can lift the workpiece during the reset process, thereby realizing the automatic unloading of the workpiece and improving the disassembly efficiency.

[0015] In summary, the present invention has the advantages of simple structure, high clamping efficiency and high positioning accuracy, and is especially suitable for the field of compressor partition technology. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 for Figure 1 Enlarged view of point A in the middle; Figure 3 for Figure 1 Enlarged view at point B in the middle; Figure 4 Schematic diagram of supporting component structure Figure 1 ; Figure 5 Schematic diagram of supporting component structure Figure 2 ; Figure 6 for Figure 5 Enlarged view at point C; Figure 7 This is a cross-sectional view of the present invention; Figure 8 for Figure 7 Enlarged image of the source of D; Figure 9 This is a diagram showing the working status of the flip-board. Figure 10 This is a diagram showing the working state of the moving frame; Figure 11 This is a schematic diagram of the pressing component structure; Figure 12 Schematic diagram of the power mechanism Figure 1 ; Figure 13 Schematic diagram of the power mechanism Figure 2 .

[0017] In the diagram: 100, workpiece; 1, bracket; 2, positioning mechanism; 21, spindle; 211, chassis; 212, tapered shaft; 22, magazine; 221, expansion joint; 3, fixing mechanism; 31, mounting plate; 32, support assembly; 321, support unit; 3210, limit block; 3211, flap; 3212, mounting base; 3213, rotating base; 3214, connecting rod; 3215, vertical rod; 3216, container. 3217. Storage trough; 3218. Baffle a; 3219. Spring a; 3210. Sealing plate; 322. Scraper unit; 3221. Chip removal trough; 3222. Moving frame; 4. Power mechanism; 41. Hydraulic cylinder; 42. Pressure rod unit; 43. Moving plate; 44. Fixed rod; 45. Long slot; 46. Baffle a; 47. Round hole; 48. Baffle b; 49. Spring c; 421. Pull rod a; 422. Pull rod b; 423. Pressure cap. Detailed Implementation

[0018] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0019] In the description of this invention, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," and "counterclockwise," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0020] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this invention, "a plurality of" means two or more, unless otherwise explicitly specified.

[0021] Example: like Figures 1 to 3 As shown, a compressor partition hole machining fixture includes: Bracket 1; Positioning mechanism 2, four sets of positioning mechanisms 2 are evenly distributed on the bracket 1, each set of positioning mechanisms 2 includes a spindle 21 and a clip 22 sleeved on the spindle 21, and the workpiece 100 is sleeved on the clip 22; The fixing mechanism 3, corresponding to the positioning mechanism 2, includes a mounting plate 31 disposed on the outside of the spindle 21, a plurality of support components 32 arranged in a circumferential array on the mounting plate 31, and pressing components 33 corresponding to the support components 32; and The power mechanism 4 is mounted on the bracket 1 and drives the support component 32, the positioning mechanism 2 and the pressing component 33 to clamp the workpiece 100 in sequence. The support assembly 32 includes two sets of support units 321 and scraper units 322 corresponding to the support units 321. Each support unit 321 includes two sets of rotatably arranged flaps 3211. The support surfaces of the two sets of flaps 3211 can be rotated from being relatively arranged to being arranged upward to support the workpiece 100. The scraper unit 322 can scrape the support surfaces of the flaps 3211.

[0022] It should be noted that this fixture is used for multi-axis synchronous machining of the workpiece 100 and can be used in a sixteen-axis machining center.

[0023] Furthermore, such as Figure 1 As shown, the support 1 includes a base plate 11, a plurality of vertical plates 12 disposed on the base plate 11, and a panel 13 mounted on the plurality of vertical plates 12.

[0024] Furthermore, such as Figure 8 As shown, the spindle 21 includes a base 211 and a tapered shaft 212 coaxially arranged with the base 211. The tapered shaft 212 is arranged with a smaller top and a larger bottom.

[0025] Furthermore, the magazine 22 is configured with an outer circle and an inner cone shape, and its interior is adapted to the cone shaft 212, with several sets of expansion joints 221 evenly provided on the side wall.

[0026] It should be noted that when the magazine 22 moves up and down on the spindle 21, the magazine 22 will expand radially.

[0027] Furthermore, such as Figure 6 As shown, the free end of the flap 3211 is wedge-shaped.

[0028] It should be noted that the free end of the flap 3211 is wedge-shaped, which allows the end of the flap 3211 to better scrape off the iron filings attached to the area it passes through when it rotates.

[0029] It should also be noted that the two sets of flaps 3211 are arranged opposite each other, with the wedge-shaped tip located on the inside.

[0030] Furthermore, such as Figures 4 to 6As shown, the support unit 321 further includes a mounting base 3212, a rotating base 3213 disposed in the mounting base 3212 and used for mounting the flip plate 3211, a connecting rod 3214 rotatably mounted on the outside of the flip plate 3211, a vertical rod 3215 vertically slidably disposed on the mounting plate 31 and connected to the connecting rod 3214, a receiving groove 3216 formed at the bottom of the mounting plate 31, a baffle a3217 disposed in the receiving groove 3216, a spring a3218 sleeved on the vertical rod 3215 and located at the bottom of the baffle a3217 and the receiving groove 3216, and a sealing plate 3219 sealing the receiving groove 3216.

[0031] It should be noted that when the vertical rod 3215 moves up and down, the flap 3211 can be rotated through the connecting rod 3214.

[0032] It should also be noted that the mounting base 3212 is also provided with a limiting block 3210 that can restrict the rotation of the flip plate 3211; the limiting block 3210 can also prevent the flip plate 3211 from rotating further after it has rotated to the correct position.

[0033] Furthermore, such as Figure 6 , Figure 7 and Figure 10 As shown, the scraper unit 322 includes a chip discharge groove 3221 located in the middle of the rotating base 3213 and a movable frame 3222 slidably disposed in the chip discharge groove 3221; the upper crossbeam of the movable frame 3222 is in contact with the support surface of the flip plate 3211.

[0034] It should be noted that when the support surfaces of the two sets of flip plates 3211 are arranged opposite each other, the workpiece 100 is placed on top of the flip plate 3211, and then the moving frame 3222 moves its upper beam frame downward to scrape the support surface of the flip plate 3211, thereby ensuring that the support surface of the flip plate 3211 will not be attached with iron filings.

[0035] It should also be noted that the upper port of the chip removal groove 3221 is chamfered to facilitate the entry of iron filings into the chip removal groove 3221. The length of the moving frame 3222 is longer than that of the chip removal groove 3221, and the movement of the moving frame 3222 can carry out the iron filings in the chip removal groove 3221.

[0036] Furthermore, such as Figure 4 , Figure 5 and Figure 11As shown, the pressing assembly 33 includes a fixed base 331 disposed at the bottom of the mounting plate 31, a baffle b332 slidably disposed within the fixed base 331, a through hole 333 opened on the mounting plate 31, a movable rod 334 coaxially fixed with the baffle b332 and passing through the through hole 333, a spring b335 sleeved on the movable rod 334 and located between the baffle b332 and the fixed base 331, a pressure plate 336 disposed on the movable rod 334, a guide rod 337 disposed on the side of the movable rod 334, and a guide groove 338 opened on the inner wall of the through hole 333, wherein the guide rod 337 is slidably disposed within the guide groove 338.

[0037] It should be noted that the guide groove 338 includes a spiral groove and a straight groove that are connected in transition. When the moving rod 334 moves down, the guide rod 337 engages with the spiral groove in the guide groove 338, the pressure plate 336 rotates to above the workpiece 100, and then the guide rod 337 moves along the straight groove, and the pressure plate 336 moves down and abuts against the workpiece 100.

[0038] Furthermore, such as Figure 3 , Figure 12 and Figure 13 As shown, the power mechanism 4 includes a hydraulic cylinder 41 located directly below the positioning mechanism 2, a pressure rod unit 42 connected to the power output end of the hydraulic cylinder 41 and vertically inserted into the spindle 21, a moving plate 43 connected to the power output end of the hydraulic cylinder 41, a fixed rod 44 located on the moving plate 43 and correspondingly connected to the moving frame 3222, a long slot 45 opened on the moving plate 43 and correspondingly accommodating the moving rod 334, a baffle a46 located at the bottom of the moving rod 334 and abutting against the moving plate 43, a round hole 47 opened on the moving plate 43 and correspondingly accommodating the vertical rod 3215, a baffle b48 located at the bottom of the vertical rod 3215, and a spring c49 located on the baffle b48 and abutting against the bottom of the moving plate 43.

[0039] Furthermore, such as Figure 8 As shown, the pressure rod unit 42 includes a pull rod a421 passing through the spindle 21, a pull rod b422 connected to the power output end of the oil cylinder 41 and elastically connected to the pull rod a421, and a pressure cap 423 disposed at the top of the pull rod a421 and capable of abutting against the clip 22.

[0040] It should be noted that, as Figure 9As shown, when the hydraulic cylinder 41 moves downward, the moving frame 3222 and the pressure rod unit 42 move. The upper crossbeam of the moving frame 3222 scrapes the support surface of the flip plate 3211. Then, the moving plate 43 first contacts the spring c49, driving the vertical rod 3215 to move. The vertical rod 3215 drives the flip plate 3211 to rotate through the connecting rod 3214. After the flip plate 3211 abuts against the limiting block 3210, the spring c49 is compressed. Then, the pressure cap 423 will contact the upper end of the clip 22. After that, the hydraulic cylinder 41 continues to move downward, the pull rod a421 remains stationary, the pull rod b422 moves downward, and the moving plate 43 continues to move downward. The moving plate 43 abuts against the baffle a46 and drives the moving rod 334 to move downward.

[0041] Work process: Workpiece clamping process: The support surfaces of the two sets of flip plates 3211 are arranged opposite each other. The workpiece 100 is placed on several sets of support units 321. Then, the hydraulic cylinder 41 moves downward, and the moving frame 3222 and the pressure rod unit 42 move downward. The upper crossbeam of the moving frame 3222 scrapes the support surface of the flip plate 3211. Then, the moving plate 43 first contacts the spring c49, driving the vertical rod 3215 to move. The vertical rod 3215 drives the flip plate 3211 to rotate through the connecting rod 3214. The flip plate 3211 scrapes the lower surface area of ​​the workpiece 100. After the flip plate 3211 abuts against the limiting block 3210, its support surface faces upward. After setting, the moving plate 43 continues to move downward, the spring c49 is compressed, and then the pressure cap 423 contacts the upper end of the magazine 22. The magazine 22 expands outward to position the workpiece 100. Then the cylinder 41 continues to move downward, the pull rod a421 remains stationary, the pull rod b422 moves downward, the moving plate 43 continues to move downward, the moving plate 43 abuts against the baffle a46 and drives the moving rod 334 to move downward, the guide rod 337 cooperates with the spiral groove in the guide groove 338, the pressure plate 336 rotates to above the workpiece 100, then the guide rod 337 moves along the straight groove, and the pressure plate 336 moves downward to abut against the workpiece 100.

[0042] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A fixture for machining compressor partition holes, characterized in that, include: Support (1); Positioning mechanism (2), four sets of positioning mechanisms (2) are evenly distributed on the bracket (1), each set of positioning mechanism (2) includes a spindle (21) and a clip (22) sleeved on the spindle (21), and the workpiece (100) is sleeved on the clip (22); The fixing mechanism (3) is configured in correspondence with the positioning mechanism (2), and includes a mounting plate (31) disposed on the outside of the spindle (21), a plurality of support components (32) arranged in a circumferential array on the mounting plate (31), and a pressing component (33) disposed in correspondence with the support components (32). as well as The power mechanism (4) is mounted on the bracket (1) and drives the support assembly (32), the positioning mechanism (2) and the pressing assembly (33) to clamp the workpiece (100) in sequence. The support assembly (32) includes two sets of support units (321) and scraper units (322) corresponding to the support units (321). The support unit (321) includes two sets of rotatably arranged flaps (3211). The support surfaces of the two sets of flaps (3211) can be rotated from being relatively arranged to being arranged facing upward to support the workpiece (100). The scraper unit (322) can scrape the support surfaces of the flaps (3211). The support unit (321) further includes a mounting base (3212), a rotating base disposed in the mounting base (3212) and used to mount the flap (3211), a connecting rod (3214) rotatably mounted on the outside of the flap (3211), a vertical rod (3215) vertically slidably disposed on the mounting plate (31) and connected to the connecting rod (3214), a receiving groove (3216) opened at the bottom of the mounting plate (31), a baffle a (3217) disposed in the receiving groove (3216), a spring a (3218) sleeved on the vertical rod (3215) and located at the bottom of the baffle a (3217) and the receiving groove (3216), and a sealing plate (3219) sealing the receiving groove (3216). The scraper unit (322) includes a chip discharge groove (3221) located in the middle of the rotating base and a movable frame (3222) slidably disposed in the chip discharge groove (3221); the upper crossbeam of the movable frame (3222) is in contact with the support surface of the flip plate (3211).

2. The compressor partition hole machining fixture according to claim 1, characterized in that, The support (1) includes a base plate (11), a number of vertical plates (12) disposed on the base plate (11), and a panel (13) mounted on the number of vertical plates (12).

3. The compressor partition hole machining fixture according to claim 1, characterized in that, The spindle (21) includes a base (211) and a tapered shaft (212) coaxially arranged with the base (211). The tapered shaft (212) is arranged with a smaller top and a larger bottom.

4. A compressor partition hole machining fixture according to claim 3, characterized in that, The magazine (22) is designed with an outer circle and an inner cone shape, and its interior is adapted to the cone shaft (212). Several sets of expansion joints (221) are evenly provided on the side wall.

5. A compressor partition hole machining fixture according to claim 1, characterized in that, The free end of the flap (3211) is wedge-shaped.

6. A compressor partition hole machining fixture according to claim 1, characterized in that, The pressing assembly (33) includes a fixed base (331) disposed at the bottom of the mounting plate (31), a baffle b (332) slidably disposed in the fixed base (331), a through hole (333) opened on the mounting plate (31), a moving rod (334) coaxially fixed with the baffle b (332) and passing through the through hole (333), a spring b (335) sleeved on the moving rod (334) and located between the baffle b (332) and the fixed base (331), a pressure plate (336) disposed on the moving rod (334), a guide rod (337) disposed on the side of the moving rod (334), and a guide groove (338) opened on the inner wall of the through hole (333), wherein the guide rod (337) is slidably disposed in the guide groove (338).

7. A compressor partition hole machining fixture according to claim 6, characterized in that, The power mechanism (4) includes a hydraulic cylinder (41) located directly below the positioning mechanism (2), a pressure rod unit (42) connected to the power output end of the hydraulic cylinder (41) and vertically inserted into the spindle (21), a moving plate (43) connected to the power output end of the hydraulic cylinder (41), a fixed rod (44) located on the moving plate (43) and correspondingly connected to the moving frame (3222), a long slot (45) opened on the moving plate (43) and correspondingly accommodating the moving rod (334), a baffle a (46) located at the bottom of the moving rod (334) and abutting against the moving plate (43), a round hole (47) opened on the moving plate (43) and correspondingly accommodating the vertical rod (3215), a baffle b (48) located at the bottom of the vertical rod (3215), and a spring c (49) located on the baffle b (48) and abutting against the bottom of the moving plate (43).

8. A compressor partition hole machining fixture according to claim 7, characterized in that, The pressure rod unit (42) includes a pull rod a (421) passing through the spindle (21), a pull rod b (422) connected to the power output end of the oil cylinder (41) and elastically connected to the pull rod a (421), and a pressure cap (423) disposed at the top of the pull rod a (421) and abutting against the clip (22).

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