Four-axis hydraulic flange type three-face positioning and air tightness detection tool combination tool

Abstract

The utility model discloses a four-axis hydraulic flange type three-side positioning airtight detection tool combination tool, which belongs to the technical field of automobile part manufacturing and comprises a bottom plate. A plurality of sets of tool assemblies are fixedly installed on the bottom plate, and each set of tool assembly comprises four positioning assemblies distributed in a rectangular shape. The positioning assembly comprises a clamp positioning seat and a lateral positioning assembly which are mounted on the bottom plate, and a clamp plate and a plurality of lateral positioning shifting beads which are mounted on the clamp positioning seat; the lateral positioning assembly is installed on the bottom plate and located on the side edge of the clamp positioning base. The mounting table is fixedly mounted on the bottom plate; the wedge-shaped pressing mechanism is mounted on the bottom plate, and the upper pressing mechanism is mounted on the bottom plate and the mounting table; the upper pressing mechanism comprises a pressing assembly and a detection assembly, the pressing assembly is installed on the bottom plate, and the detection assembly is installed on the installation table. By means of the mode, the layout is optimized, so that the two wedge-shaped pressing mechanisms and the pressing assemblies conduct lateral pressing on workpieces in the four positioning assemblies.

Description

Technical Field

[0001] The utility model relates to the technical field of automotive parts manufacturing, in particular to a combined tool for three-sided positioning with airtight detection of four-axis hydraulic flange type Background Technique

[0002] The automotive expansion valve is installed at the inlet of the automotive evaporator and mainly functions as a throttle. After the high-temperature and high-pressure liquid refrigerant passes through the throttle orifice of the expansion valve, it becomes a low-temperature and low-pressure fog-like hydraulic refrigerant, creating conditions for the evaporation of the refrigerant; at the same time, it controls the flow rate of the refrigerant; due to the fast reaction speed and large adjustment range of the electronic expansion valve, it is widely used in the air-conditioning systems of medium- and high-end vehicles and has a good market; after the expansion valve undergoes profile stretching, blank sawing, and deburring vibration grinding, it will undergo a first-stage processing to perform counterbore cutting on both sides of the expansion valve; during this process, the workpiece to be formed needs to be placed in a tooling fixture for fixation.

[0003] For example, Chinese Patent CN112372530B discloses a positioning and clamping tooling, which is provided with a base plate, a carrier plate for placing workpieces, a first limiting block, and a second limiting block; the first pusher and the second pusher on the base plate are used to push the first limiting block and the second limiting block to clamp and fix the workpiece.

[0004] However, for each workpiece clamped by this device, two sets of pushers are required to position and clamp the workpiece, resulting in a low utilization rate of the fixture bottom plate; at the same time, in actual production, there is a situation where the pressure plate does not retract completely and collides with the corresponding processing tool, causing damage to the equipment.

[0005] Based on this, the utility model designs a combined tool for three-sided positioning with airtight detection of four-axis hydraulic flange type to solve the above problems. Summary of the Utility Model

[0006] In view of the above-mentioned drawbacks existing in the prior art, the utility model provides a combined tool for three-sided positioning with airtight detection of four-axis hydraulic flange type.

[0007] To achieve the above objectives, the utility model is realized through the following technical solutions:

[0008] The combined tool for three-sided positioning with airtight detection of four-axis hydraulic flange type includes a bottom plate;

[0009] A plurality of groups of tooling components are fixedly installed on the bottom plate, and each group of tooling components includes four positioning components distributed in a rectangular shape;

[0010] The positioning component includes a fixture positioning seat, a fixture plate, a cavity, an avoidance through groove, a lateral positioning ball, and a lateral positioning component for positioning the A surface. The fixture positioning seat is fixedly installed on the top surface of the bottom plate, the fixture plate is fixedly installed on one side of the top surface of the fixture positioning seat, and a plurality of lateral positioning balls are fixedly installed on the fixture positioning seat; the fixture positioning seat, the fixture plate, and the lateral positioning balls form a cavity for accommodating the workpiece. A through avoidance through groove is provided on the bottom plate and the fixture positioning seat, and the avoidance through groove is aligned with the processing hole on the bottom surface of the workpiece; the lateral positioning component is installed on the bottom plate, and the lateral positioning component is located on the side of the fixture positioning seat.

[0011] The installation table is fixedly installed on the bottom plate, and the installation table is located in the middle of the four positioning components; a wedge-shaped pressing mechanism for positioning and pressing the B surface is installed on the bottom plate, and an upper pressing mechanism is installed on the bottom plate and the installation table; the upper pressing mechanism includes a pressing component for pressing the C surface and a detection component. The pressing component is installed on the bottom plate, and the detection component is installed on the installation table.

[0012] Furthermore, there are two sets of wedge-shaped pressing mechanisms, pressing components, and detection components respectively. The wedge-shaped pressing mechanism and the upper pressing mechanism are both located between the four positioning components; the two wedge-shaped pressing mechanisms are symmetrically installed on the bottom plate front and back, the two pressing components are symmetrically installed on the bottom plate left and right, and the two detection components are centrally symmetrically installed on the installation table.

[0013] Furthermore, the lateral positioning component includes a single-acting oil cylinder and a positioning rod. The middle of the positioning rod is rotatably installed on the fixture positioning seat. The single-acting oil cylinder is fixedly installed on the bottom plate, and the output end of the single-acting oil cylinder abuts against one end of the positioning rod.

[0014] Furthermore, the wedge-shaped pressing mechanism includes a hydraulic oil cylinder, a wedge block, and two sets of fastening components. The hydraulic oil cylinder is fixedly installed on the bottom plate, and the distance between the hydraulic oil cylinder and the left and right cavities is equal. The output end of the hydraulic oil cylinder is fixedly installed with a wedge block; the two sets of pressing components are symmetrically distributed on both sides of the hydraulic oil cylinder.

[0015] Furthermore, the fastening component includes a moving block, a mounting block, and a limiting groove. The mounting block is fixedly installed on the bottom plate, a limiting groove is provided on the mounting block, and the limiting groove is in limiting sliding connection with the moving block. The wedge block is in fitting sliding connection with the moving block; two lateral pressing blocks are fixedly installed on the moving block.

[0016] Furthermore, the pressing component includes a corner oil cylinder and a corner pressing rod. The corner oil cylinder is fixedly installed on the bottom plate, and the distance between the corner oil cylinder and the front and back cavities is equal; the output end of the corner oil cylinder is fixedly connected to the middle of the corner pressing rod.

[0017] Furthermore, the detection component includes a movable component slide, a sliding pin, a spring and an airtight component. A slide is provided on the mounting platform, the slide is slidingly connected to the sliding pin, and a spring is fixedly installed between the sliding pin and the mounting platform; the airtight component is installed on the mounting platform.

[0018] Furthermore, the airtight component includes an air path hole, an air hole and a muffler. An air path hole connected to the air supply device is opened inside the mounting platform, and an air hole connected to the air path hole is opened on the sliding pin; the muffler is fixedly installed on the top of the mounting platform, and the muffler is connected to the air path hole.

[0019] The utility model has the following technical effects:

[0020] 1. The utility model optimizes the layout so that the workpieces in the four positioning assemblies are laterally clamped by two sets of wedge-shaped clamping mechanisms, and the workpieces in the four positioning assemblies are clamped on the upper side by two sets of clamping assemblies, so as to realize the processing of the double-sided workpieces, and the workpieces are supported by the clamping assemblies when the bottom surface of the workpiece is processed, so as to avoid the axial force of the tool pushing the workpiece to move when the bottom surface is processed, and at the same time improve the utilization efficiency of the fixture bottom plate, and realize the clamping and production of multi-station workpieces; so that the number of clamped products in each group is increased, which directly improves the utilization efficiency of the processing equipment. Due to the increase in the number of processing, the necessary auxiliary time of the equipment processing is effectively shared, forming the effect of reducing costs and increasing efficiency;

[0021] 2. The detection device of the utility model can judge the retraction and release of the pressure plate by the size of the gas flow rate. When the gas flow rate is detected to be abnormal, it means that the pressure plate has not been retracted into place. The airtight detection device issues a stop command to avoid the risk of collision between the tool and the pressure plate due to the failure of the pressure plate to retract. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the prior art descriptions are briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model, and for ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0023] Figure 1 The utility model is a three-dimensional four-axis hydraulic flange three-sided positioning with airtight detection tooling combination tooling Figure 1 ;

[0024] Figure 2 It is a top view of the four-axis hydraulic flange three-side positioning belt airtight detection tooling assembly tooling of the utility model;

[0025] Figure 3 Schematic diagram of the workpiece;

[0026] Figure 4 is a cross-sectional view taken along the A-A direction in Figure 2 ;

[0027] Figure 5 is Figure 4 an enlarged view of part B in

[0028] The reference numerals in the figure respectively represent:

[0029] 1. bottom plate; 2. fixture positioning seat; 3. fixture plate; 4. cavity; 5. avoidance through groove; 6. lateral positioning bead; 7. wedge-shaped pressing mechanism; 71. hydraulic cylinder; 72. wedge block; 73. moving block; 74. mounting block; 75. limiting groove; 76. lateral pressing block; 8. lateral positioning assembly; 81. single-acting cylinder; 82. positioning rod; 9. upper pressing mechanism; 91. pressing assembly; 911. corner cylinder; 912. corner pressing rod; 92. detection assembly; 921. air passage hole; 922. chute; 923. sliding pin; 924. air hole; 925. spring; 926. silencer; 10. workpiece; 101. machining hole; 11. mounting table. Specific embodiments

[0030] To make the objectives, technical solutions and advantages of the embodiments of the present utility model clearer, the technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. Apparently, the described embodiments are some but not all of the embodiments of the present utility model. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without making creative efforts shall fall within the protection scope of the present utility model.

[0031] The present utility model will be further described below with reference to the embodiments.

[0032] The "left", "right", "front", "rear", "upper" and "lower" mentioned in the following description are oriented in the perspective direction of the top view.

[0033] Embodiment 1

[0034] Please refer to the attached Figures 1-3 of the specification, a four-axis hydraulic flange-type three-sided positioning and airtight detection tooling combined tooling, including a bottom plate 1;

[0035] The front and rear surfaces of the workpiece 10 are set as surface A, the left and right surfaces of the workpiece 10 are set as surface B, and the upper surface of the workpiece 10 is set as surface C;

[0036] A plurality of groups of tooling components are fixedly installed on the bottom plate 1, and each group of tooling components includes four positioning components distributed in a rectangle;

[0037] The positioning component includes a fixture positioning base 2, a fixture plate 3, a cavity 4, an avoidance through groove 5, a lateral positioning bead 6, and a lateral positioning component 8 for positioning the A surface. The fixture positioning base 2 is fixedly installed on the top surface of the bottom plate 1. The fixture plate 3 is fixedly installed on one side of the top surface of the fixture positioning base 2. A plurality of lateral positioning beads 6 are fixedly installed on the fixture positioning base 2. The fixture positioning base 2, the fixture plate 3, and the lateral positioning beads 6 form a cavity 4 for accommodating the workpiece 10. A through avoidance through groove 5 is provided on the bottom plate 1 and the fixture positioning base 2, and the avoidance through groove 5 is aligned with the machining hole 101 on the bottom surface of the workpiece 10. The lateral positioning component 8 is installed on the bottom plate 1, and the lateral positioning component 8 is located on the side of the fixture positioning base 2.

[0038] The installation table 11 is fixedly installed on the bottom plate 1, and the installation table 11 is located in the middle of the four positioning components. A wedge-shaped pressing mechanism 7 for positioning and pressing the B surface is installed on the bottom plate 1, and an upper pressing mechanism 9 is installed on the bottom plate 1 and the installation table 11. The upper pressing mechanism 9 includes a pressing component 91 for pressing the C surface and a detection component 92. The pressing component 91 is installed on the bottom plate 1, and the detection component 92 is installed on the installation table 11.

[0039] There are two sets of the wedge-shaped pressing mechanism 7, the pressing component 91, and the detection component 92. The wedge-shaped pressing mechanism 7 and the upper pressing mechanism 9 are both located between the four positioning components. The two wedge-shaped pressing mechanisms 7 are symmetrically installed on the bottom plate 1 front and back. The two pressing components 91 are symmetrically installed on the bottom plate 1 left and right. The two detection components 92 are symmetrically installed on the installation table 11 in a central symmetry manner.

[0040] In this embodiment, when the four-axis hydraulic flange-type three-sided positioning with airtight detection tooling combination tooling is working normally, the workpiece 10 is placed in the cavity 4, and the processing hole 101 at the bottom of the workpiece 10 is aligned with the avoidance groove 5; the workpiece 10 is pre-positioned by the lateral positioning ball 6, and the clamping component 91 is started to clamp the workpiece 10 in the cavity 4, so that the bottom surface of the workpiece 10 fits with the bottom surface of the cavity 4; the workpiece 10 is positioned front and back by the lateral positioning component 8; the workpiece 10 is positioned and clamped left and right by the wedge-shaped clamping mechanism 7; thereby fixing the workpiece 10; when cutting the bottom surface of the workpiece 10, the device drives the workpiece 10 to flip, and the cutting tool processes the processing hole 101 on the bottom surface of the workpiece 10 through the avoidance groove 5. In this process, the clamping component 91 is used to prevent the axial cutting force from causing the workpiece 10 to produce vertical Displacement; after the processing hole 101 on the bottom surface of the workpiece 10 is completed, the flip device is turned over to make the top surface of the workpiece 10 face up, the clamping component 91 is started so that the clamping component 91 no longer blocks the upper surface of the workpiece 10, and the detection component 92 is used to determine whether the clamping component 91 has retracted into place, and then the upper surface of the workpiece 10 is processed by the tool; at the same time, through the optimized layout, the two groups of wedge-shaped clamping mechanisms 7 are used to laterally clamp the workpieces 10 in the four groups of positioning components, and the two groups of clamping components 91 are used to clamp the workpieces 10 in the four groups of positioning components on the upper side, which improves the utilization efficiency of the fixture base plate and realizes the clamping and production of multi-station workpieces; the number of clamped products in each group is increased, which directly improves the utilization efficiency of the processing equipment. Due to the increase in the number of processing, the necessary auxiliary time during equipment processing is effectively shared, forming an effect of reducing costs and increasing efficiency.

[0041] Example 2

[0042] like Figures 1-5 As shown, as a preferred embodiment of the utility model, the lateral positioning assembly 8 includes a single-acting oil cylinder 81 and a positioning rod 82, the middle part of the positioning rod 82 is rotatably mounted on the fixture positioning seat 2, the single-acting oil cylinder 81 is fixedly mounted on the bottom plate 1, and the output end of the single-acting oil cylinder 81 abuts against one end of the positioning rod 82;

[0043] The wedge-shaped pressing mechanism 7 includes a hydraulic cylinder 71, a wedge block 72 and two sets of fastening components. The hydraulic cylinder 71 is fixedly mounted on the bottom plate 1, and the distance between the hydraulic cylinder 71 and the left and right cavities 4 is equal. The wedge block 72 is fixedly mounted on the output end of the hydraulic cylinder 71; the two sets of fastening components are symmetrically distributed on both sides of the hydraulic cylinder 71;

[0044] The fastening assembly includes a moving block 73, a mounting block 74 and a limiting groove 75. The mounting block 74 is fixedly mounted on the bottom plate 1. The limiting groove 75 is provided on the mounting block 74. The limiting groove 75 is slidingly connected with the moving block 73. The wedge block 72 is slidingly connected with the moving block 73. Two lateral pressing blocks 76 are fixedly mounted on the moving block 73.

[0045] The pressing component 91 includes a corner oil cylinder 911 and a corner pressing rod 912. The corner oil cylinder 911 is fixedly installed on the bottom plate 1, and the distances between the corner oil cylinder 911 and the front and rear two cavities 4 are equal; the output end of the corner oil cylinder 911 is fixedly connected to the middle of the corner pressing rod 912;

[0046] The detection component 92 includes a moving component chute 922, a sliding pin 923, a spring 925 and an airtight component. A chute 922 is opened on the mounting table 11. The chute 922 is in limit sliding connection with the sliding pin 923, and a spring 925 is fixedly installed between the sliding pin 923 and the mounting table 11; the airtight component is installed on the mounting table 11.

[0047] The airtight component includes an air passage hole 921, an air hole 924 and a silencer 926. An air passage hole 921 communicating with the air supply device is opened inside the mounting table 11, and an air hole 924 communicating with the air passage hole 921 is opened on the sliding pin 923; the silencer 926 is fixedly installed on the top of the mounting table 11, and the silencer 926 communicates with the air passage hole 921.

[0048] In this embodiment, when the wedge pressing mechanism 7, the lateral positioning component 8 and the upper pressing mechanism 9 work normally, the corner oil cylinder 911 drives the corner pressing rod 912 to rotate, so that both ends of the corner pressing rod 912 are pressed on the workpiece 10, thereby realizing the pressing of the upper side of the workpiece 10; the single-acting oil cylinder 81 pushes one end of the positioning rod 82 to make the positioning rod 82 rotate, so that the other end of the positioning rod 82 presses the workpiece 10; the hydraulic cylinder 71 drives the wedge block 72 to move downward, the wedge block 72 pushes the two side moving blocks 73 to move, and the moving blocks 73 move horizontally under the limiting action of the limiting groove 75, thereby driving the lateral pressing block 76 to move horizontally to position and press the side surface of the workpiece 10; after the bottom of the workpiece 10 is processed, the corner oil cylinder 911 drives the corner pressing rod 912 to reset, one end of the corner pressing rod 912 presses the sliding pin 923, and the sliding pin 923 slides in the chute 922, so that the air hole 924 on the chute 922 communicates with the air passage hole 921; when the air passage hole 921 and the air hole 924 are penetrated, the retraction and loosening of the pressing plate are judged by the magnitude of the gas flow. When the gas flow is abnormal, it means that the pressing plate has not retracted in place, and the airtight detection device issues a shutdown instruction, avoiding the risk of collision between the tool and the pressing plate caused by the failure of the pressing plate to retract.

[0049] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that: they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements on some of the technical features; and these modifications or replacements will not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A four-axis hydraulic flange type three-sided positioning belt airtightness detection tooling assembly tooling, comprising a base plate (1), characterized in that: A plurality of tooling components are fixedly mounted on the bottom plate (1), each tooling component comprising four positioning components distributed in a rectangular shape; The positioning assembly comprises a fixture positioning seat (2), a fixture plate (3), a cavity (4), an avoidance groove (5), a lateral positioning ball (6) and a lateral positioning assembly (8) for positioning the A surface. The fixture positioning seat (2) is fixedly mounted on the top surface of the base plate (1), the fixture plate (3) is fixedly mounted on one side of the top surface of the fixture positioning seat (2), and a plurality of lateral positioning balls (6) are fixedly mounted on the fixture positioning seat (2); the fixture positioning seat (2), the fixture plate (3) and the lateral positioning balls (6) constitute a cavity (4) for accommodating a workpiece (10), and a through avoidance groove (5) is provided on the base plate (1) and the fixture positioning seat (2), and the avoidance groove (5) is aligned with a processing hole (101) on the bottom surface of the workpiece (10); the lateral positioning assembly (8) is mounted on the base plate (1), and the lateral positioning assembly (8) is located on the side of the fixture positioning seat (2); The mounting platform (11) is fixedly mounted on the base plate (1), and the mounting platform (11) is located in the middle of the four positioning components; a wedge-shaped pressing mechanism (7) for positioning and pressing the B surface is mounted on the base plate (1), and an upper pressing mechanism (9) is mounted on the base plate (1) and the mounting platform (11); the upper pressing mechanism (9) comprises a pressing component (91) for pressing the C surface and a detection component (92), the pressing component (91) is mounted on the base plate (1), and the detection component (92) is mounted on the mounting platform (11).

2. The four-axis hydraulic flange three-sided positioning belt airtightness detection tooling assembly tooling according to claim 1 is characterized in that: The wedge-shaped pressing mechanism (7), the pressing assembly (91) and the detection assembly (92) are each provided in two groups, and the wedge-shaped pressing mechanism (7) and the upper pressing mechanism (9) are both located between the four positioning assemblies; the two wedge-shaped pressing mechanisms (7) are symmetrically mounted on the bottom plate (1) in a front-to-back manner, the two pressing assemblies (91) are symmetrically mounted on the bottom plate (1) in a left-to-right manner, and the two detection assemblies (92) are symmetrically mounted on the mounting platform (11) in a centrally symmetrical manner.

3. The four-axis hydraulic flange three-sided positioning belt airtightness detection tooling assembly tooling according to claim 2 is characterized in that: The lateral positioning assembly (8) comprises a single-acting oil cylinder (81) and a positioning rod (82); the middle portion of the positioning rod (82) is rotatably mounted on the fixture positioning seat (2); the single-acting oil cylinder (81) is fixedly mounted on the base plate (1); and the output end of the single-acting oil cylinder (81) abuts against one end of the positioning rod (82).

4. The four-axis hydraulic flange three-sided positioning belt airtightness detection tooling assembly tooling according to claim 3 is characterized in that: The wedge-shaped clamping mechanism (7) comprises a hydraulic cylinder (71), a wedge-shaped block (72) and two sets of fastening components. The hydraulic cylinder (71) is fixedly mounted on the base plate (1), and the distance between the hydraulic cylinder (71) and the left and right cavities (4) is equal. The wedge-shaped block (72) is fixedly mounted on the output end of the hydraulic cylinder (71); the two sets of clamping components are symmetrically distributed on both sides of the hydraulic cylinder (71).

5. The four-axis hydraulic flange three-sided positioning belt airtightness detection tooling assembly tooling according to claim 4 is characterized in that: The fastening assembly comprises a moving block (73), a mounting block (74) and a limiting groove (75); the mounting block (74) is fixedly mounted on the bottom plate (1); the limiting groove (75) is provided on the mounting block (74); the limiting groove (75) is connected to the moving block (73) in a limiting sliding manner; the wedge block (72) is connected to the moving block (73) in a fitting sliding manner; and two lateral pressing blocks (76) are fixedly mounted on the moving block (73).

6. The four-axis hydraulic flange three-sided positioning belt airtightness detection tooling assembly tooling according to claim 5 is characterized in that: The clamping assembly (91) comprises a corner oil cylinder (911) and a corner pressure rod (912); the corner oil cylinder (911) is fixedly mounted on the base plate (1), and the distance between the corner oil cylinder (911) and the front and rear cavities (4) is equal; the output end of the corner oil cylinder (911) is fixedly connected to the middle of the corner pressure rod (912).

7. The four-axis hydraulic flange three-side positioning belt airtightness detection tooling assembly tooling according to claim 6 is characterized in that: The detection component (92) comprises a movable component slide groove (922), a sliding pin (923), a spring (925) and an airtight component; a slide groove (922) is provided on the mounting platform (11); the slide groove (922) and the sliding pin (923) are limitedly slidably connected; a spring (925) is fixedly installed between the sliding pin (923) and the mounting platform (11); and the airtight component is mounted on the mounting platform (11).

8. The four-axis hydraulic flange three-side positioning belt airtightness detection tooling assembly tooling according to claim 7 is characterized in that: The airtight component comprises an air path hole (921), an air hole (924) and a muffler (926); an air path hole (921) communicating with the air delivery device is provided inside the mounting platform (11); an air hole (924) communicating with the air path hole (921) is provided on the sliding pin (923); and the muffler (926) is fixedly mounted on the top of the mounting platform (11), and the muffler (926) is communicated with the air path hole (921).

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