Pin positioning tool for assembling swash plate

Abstract

The utility model discloses a pin positioning tool for assembling a swash plate, which comprises a bottom plate, a V-shaped block seat I, a V-shaped block seat II and a positioning pin seat, the first V-shaped block is vertically and detachably installed on the first V-shaped block base in a matched mode, and the second V-shaped block is vertically and detachably installed on the second V-shaped block base in a matched mode; the top of the first V-shaped block and the top of the second V-shaped block are provided with positioning areas corresponding in position. According to the utility model, the corresponding part of the main shaft is locally, vertically and detachably mounted on the V-shaped seat in a matched manner, so that quick switching operation can be realized when different types of main shafts need to be switched, the production takt is ensured, and meanwhile, the tool cost can be saved.

Description

Technical Field

[0001] This utility model belongs to the field of compressor manufacturing technology, specifically a pin positioning tool for swashplate assembly. Background Technology

[0002] The compressor in a vehicle's air conditioning system is the heart of the entire system, and the swashplate assembly within the compressor is the most critical component, its performance directly affecting the overall performance of the compressor. Existing swashplate assemblies generally consist of a swashplate, a drive arm, and a connecting block. The connecting block is connected to the swashplate and drive arm via pins, such as CN201920998858.X.

[0003] The company's earlier patent application CN114952275B proposed a compressor swashplate assembly equipment and assembly process. During the assembly of the spindle assembly in the assembly workshop, due to the variety of spindle models, operators currently use two methods to address this:

[0004] 1. The simple method of using tape to elevate the V-block for changeover has obvious drawbacks: during operation, the tape is easily contaminated with dirt, and the dirt easily adheres to the main shaft. After these dirt enters the compressor, they become foreign objects, which in turn cause quality problems in the compressor, such as performance degradation and frequent failures.

[0005] 2. The entire tooling needs to be equipped to adapt to different spindle models. When producing compressors on an assembly line, it is impossible to achieve efficient switching operations, which affects the production cycle and also causes a surge in tooling costs. Utility Model Content

[0006] The technical problem to be solved by this utility model is:

[0007] 1. Traditional tape padding method can easily cause spindle contamination; 2. Equipping the entire tooling to adapt to different spindle models cannot efficiently switch operations, affecting production cycle.

[0008] To solve the above-mentioned technical problems, the inventors, through practice and summarization, derived the technical solution of this utility model, which adopts the following technical solution:

[0009] A pin positioning fixture for swashplate assembly, the fixture comprising:

[0010] The base plate has V-block seat one, V-block seat two and positioning pin seat that can be detachably installed on it;

[0011] V-block one and V-block two, V-block one is vertically detachably mounted on V-block seat one, and V-block two is vertically detachably mounted on V-block seat two;

[0012] The tops of V-shaped blocks one and V-shaped blocks two are provided with corresponding positioning areas.

[0013] In a better embodiment, the V-block one and V-block seat one, and the V-block two and V-block seat two are all installed using a male-female structure with vertical sliding fit.

[0014] In a more preferred embodiment, the positioning pin seat includes a base and a limiting block. The base is provided with a countersunk hole and a connecting hole. The limiting block is provided with a pin hole and a T-shaped hole. The T-shaped hole and the connecting hole are positioned correspondingly and connected to the base plate by bolts. A positioning pin and a spring are installed in the pin hole, and the spring is installed in the countersunk hole.

[0015] In a more preferred embodiment, the positioning areas on V-block 1 and V-block 2 are provided with constraint structures on the sides that are far apart from each other, and the opposite sides of the two constraint structures are both set diagonally downward.

[0016] In a better embodiment, a vertical plate is installed on the side of the limiting block, a lifting component is slidably fitted on the vertical plate, a positioning plate is installed on the top of the lifting component, and through holes adapted to the positioning pin are provided on the positioning plate.

[0017] An elastic element connects the bottom of the lifting component to the base;

[0018] The lifting component is equipped with a locking pin;

[0019] The side of the limit block is provided with a locking hole that matches the locking pin, and an unlocking component is slidably fitted inside the locking hole.

[0020] In a more preferred embodiment, the locking pin includes a mounting hole on the lifting component, in which a partially exposed pin body, an elastic body that applies pressure to the pin body, and a set screw for squeezing the elastic body are installed.

[0021] In a better embodiment, the locking hole and the pin hole are connected, the unlocking component is slidably fitted in the locking hole, and both the end of the unlocking component facing the vertical plate and the end facing the pin hole are spherical structures.

[0022] The body of the locating pin is provided with a gradient body for pressing the wedge structure and a reduced body for avoiding the wedge structure.

[0023] Compared with the prior art, the present invention has the following beneficial effects:

[0024] 1. This utility model enables rapid switching when different spindle models need to be changed by partially and vertically detachably mounting the corresponding parts of the spindle on a V-shaped seat, ensuring production cycle time and saving tooling costs.

[0025] 2. After the spindle workpiece enters the positioning area, the axial position of the spindle workpiece is first constrained by the constraint structure to ensure that the positioning pin can correspond to the horizontal and vertical positions of the pin hole on the spindle workpiece. However, the positioning of the pin hole in the circumferential direction of the spindle is maintained by the positioning plate. The positioning plate supports and constrains the pin hole, thereby ensuring that the pin hole and the positioning pin are vertically aligned and coaxial. Then, the spindle workpiece moves vertically downward to complete the vertical insertion and engagement of the positioning pin and the pin hole on the spindle workpiece.

[0026] 3. This utility model installs a locking pin on the vertical plate. The downward movement of the positioning pin causes the unlocking component to move outward, pushing the locking pin out of the locking hole and ending the locking state. Subsequently, after the spindle workpiece is assembled, the assembled spindle workpiece can be automatically pushed up by the elastic component and the elastic reset structure. Attached Figure Description

[0027] Figure 1 and Figure 2 Two perspective views of the overall structure of one embodiment of this utility model (without the locating pin installed);

[0028] Figure 3 for Figure 1 Structure diagram without limit blocks installed;

[0029] Figure 4 for Figure 1 Structural distribution diagram of the middle limit block, locating pin, and spring components;

[0030] Figure 5 This is a schematic diagram of the overall structure of another embodiment of the present utility model;

[0031] Figure 6 for Figure 5 Structural distribution diagram of the middle limiting block and vertical plate;

[0032] Figure 7 for Figure 6 Cross-sectional view of the middle limiting block and the vertical plate;

[0033] Figure 8 for Figure 7 A magnified view of a section at point A in the middle;

[0034] Figure 9 for Figure 7 A magnified view of a section at point B in the middle;

[0035] Figure 10 for Figure 6 Top view of the middle limit block;

[0036] Figure 11 for Figure 5 Top view of the constrained structure.

[0037] In the diagram: 10. Base plate; 11. V-block seat one; 12. V-block seat two; 13. Positioning pin seat; 131. Base; 1311. Countersunk hole; 1312. Connecting hole; 132. Limiting block; 1321. Pin hole; 1322. T-hole; 1323. Positioning pin; 1324. Spring component; 1325. Vertical plate; 1326. Positioning plate; 1327. Lifting component; 1328. Elastic component; 1329. Locking pin; 1330. Unlocking component; 1331. Locking hole; 1332. Mounting hole; 1333. Pin body; 1334. Set screw; 1335. Elastic body; 1336. Gradient body; 1337. Reduced body; 14. V-block one; 15. V-block two; 16. Constraint structure. Detailed Implementation

[0038] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0039] In the description of this utility model, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", 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 utility model 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 utility model.

[0040] Example 1

[0041] like Figures 1 to 4 As shown, a pin positioning fixture for swashplate assembly includes a base plate 10, a V-block 14, and a V-block 2 15.

[0042] The base plate 10 is detachably mounted with V-block seat 11, V-block seat 2 12 and positioning pin seat 13;

[0043] V-block 14 is vertically detachably mounted on V-block seat 11, and V-block 2 15 is vertically detachably mounted on V-block seat 2 12.

[0044] Among them, the top of V-shaped block 14 and V-shaped block 2 15 are provided with positioning areas corresponding to their positions.

[0045] The V-block 14 and V-block seat 11, V-block 2 and V-block seat 2 are all installed with a male and female structure in a vertical sliding fit. As shown in the figure, the V-block is provided with a vertical slot, and the V-block is provided with a vertical insert. The vertical slot and the vertical insert are mutually inserted and fitted.

[0046] When assembling and machining workpieces with different spindles, the replacement operation can be completed by replacing the V-block 14 and V-block 25 that are adapted to the corresponding specifications.

[0047] Example 2

[0048] In Example 1, as Figure 5 , Figure 6 As shown, the positioning pin seat 13 includes a base 131 and a limiting block 132. The base 131 is provided with a countersunk hole 1311 and a connecting hole 1312. The limiting block 132 is provided with a pin hole 1321 and a T-shaped hole 1322. The T-shaped hole 1322 and the connecting hole 1312 are positioned correspondingly and are connected to the base plate 10 by bolts. A positioning pin 1323 and a spring element 1324 are installed in the pin hole 1321. The spring element 1324 is installed in the countersunk hole 1311.

[0049] like Figure 11 As shown, the positioning areas on the V-block 14 and V-block 25 are provided with constraint structures 16 on the side that are far apart from each other, and the opposite sides of the two constraint structures 16 are both set obliquely downward.

[0050] like Figure 5 , Figure 6 , Figure 7 , Figure 10 As shown, a vertical plate 1325 is installed on the side of the limiting block 132, a lifting component 1327 is slidably fitted on the vertical plate 1325, a positioning plate 1326 is installed on the top of the lifting component 1327, and a through hole adapted to the positioning pin 1323 is provided on the positioning plate 1326.

[0051] An elastic element 1328 is connected between the bottom of the lifting component 1327 and the base 131;

[0052] A locking pin 1329 is installed on the lifting component 1327;

[0053] The side of the limiting block 132 is provided with a locking hole 1331 that is adapted to the locking pin 1329, and the unlocking component 1330 is slidably fitted in the locking hole 1331.

[0054] like Figure 9 As shown, the locking pin 1329 includes a mounting hole 1332 provided on the lifting member 1327. A partially exposed pin body 1333, an elastic body 1335 that applies pressure to the pin body 1333, and a set screw 1334 for squeezing the elastic body 1335 are installed in the mounting hole 1332.

[0055] like Figure 8As shown, the locking hole 1331 and the pin hole 1321 are connected. The unlocking member 1330 is slidably fitted in the locking hole 1331, and the locking hole 1331 is equipped with a spring for resetting the unlocking member 1330 and a constraint piece for the constraint spring. The end of the unlocking member 1330 facing the vertical plate 1325 and the end facing the pin hole 1321 are both spherical structures.

[0056] like Figure 7 As shown, the body of the positioning pin 1323 is provided with a gradient body 1336 for pressing the wedge structure and a reduced body 1337 for avoiding the wedge structure, wherein the dimensions at both ends of the gradient body 1336 are smaller than the middle dimension.

[0057] During implementation, the spindle workpiece is placed above the positioning areas of V-block 14 and V-block 25, and then lowered into the positioning area. The spindle workpiece is axially constrained between the two constraint structures 16. After constraint, there is an axial deviation between the pin hole position and the positioning pin position. The pin hole position on the spindle workpiece is rotated and attached to the positioning plate 1326. At this time, the spindle assembly is flattened by the positioning plate 1326. In this state, the pin hole position and the positioning pin are coaxially distributed vertically.

[0058] At this point, the spindle workpiece is pressed down, and the positioning pin 1323 enters the pin position of the spindle workpiece, completing the coaxial positioning operation of the spindle workpiece. Simultaneously, the pin body 1333 enters the locking hole 1331, locking the lifting component 1327 at this location. When the pin is pressed into the pin hole by the vertical pressing mechanism, after the last pin is pressed in, the positioning pin 1323 at this position uses the gradient shape 1336 to push the unlocking component 1330 outwards, ultimately using the top of the gradient shape 1336 to constrain the unlocking component 1330. This forces the end of the unlocking member 1330 to push the pin 1333 out of the locking hole 1331, releasing the unlocked state of the lifting member 1327. After the locking state is released, the spring member 1324 can overcome the spring force in the locking hole 1331. During the reset of the positioning pin 1323, the top of the gradient member 1336 will reduce the reset speed of the positioning pin 1323, which is less than the reset speed of the lifting member 1327. This ensures that the lifting member 1327 is effectively unlocked and reset without jamming.

[0059] The above description is merely a preferred embodiment of this utility model, but the protection scope of this utility model is not limited thereto. The substitutions may be replacements of some structures, devices, or method steps, or they may be complete technical solutions. Equivalent substitutions or modifications made based on the technical solution and inventive concept of this utility model should all be covered within the protection scope of this utility model.

Claims

1. A pin positioning fixture for swashplate assembly, characterized in that, The tooling includes: The base plate (10) is detachably mounted with V-block seat one (11), V-block seat two (12) and positioning pin seat (13); V-block one (14) and V-block two (15), V-block one (14) is vertically detachably mounted on V-block seat one (11), and V-block two (15) is vertically detachably mounted on V-block seat two (12); Among them, the top of V-shaped block one (14) and V-shaped block two (15) are provided with positioning areas corresponding to their positions.

2. The pin positioning tool for assembling a swash plate according to claim 1, wherein The V-block one (14), V-block seat one (11), V-block two (15), and V-block seat two (12) are all installed using a male-female structure with vertical sliding fit.

3. The pin positioning tool for assembling a swash plate according to claim 1, wherein The positioning pin seat (13) includes a base (131) and a limiting block (132). The base (131) is provided with a countersunk hole (1311) and a connecting hole (1312). The limiting block (132) is provided with a pin hole (1321) and a T-shaped hole (1322). The T-shaped hole (1322) and the connecting hole (1312) are positioned correspondingly and connected to the base plate (10) by bolts. A positioning pin (1323) and a spring element (1324) are installed in the pin hole (1321). The spring element (1324) is installed in the countersunk hole (1311).

4. The pin positioning tool for assembling a swash plate according to claim 3, wherein The positioning areas on the V-shaped block one (14) and the V-shaped block two (15) are provided with a constraint structure (16) on the side that is far away from each other, and the opposite sides of the two constraint structures (16) are both set diagonally downward.

5. The pin positioning tool for assembling a swash plate according to claim 3, wherein A vertical plate (1325) is installed on the side of the limiting block (132), and a lifting component (1327) is slidably fitted on the vertical plate (1325). A positioning plate (1326) is installed on the top of the lifting component (1327), and a through hole adapted to the positioning pin (1323) is provided on the positioning plate (1326). An elastic element (1328) is connected between the bottom of the lifting component (1327) and the base (131); A locking pin (1329) is installed on the lifting component (1327); The side of the limiting block (132) is provided with a locking hole (1331) that is compatible with the locking pin (1329), and an unlocking component (1330) is slidably fitted inside the locking hole (1331).

6. The pin positioning tool for assembling a swash plate according to claim 5, wherein The locking pin (1329) includes a mounting hole (1332) provided on the lifting member (1327), in which a partially exposed pin (1333), an elastic body (1335) for applying pressure to the pin (1333), and a set screw (1334) for squeezing the elastic body (1335) are installed.

7. The pin positioning tool for assembling a swash plate according to claim 5, wherein The locking hole (1331) and the pin hole (1321) are connected. The unlocking member (1330) is slidably fitted in the locking hole (1331). The end of the unlocking member (1330) facing the vertical plate (1325) and the end facing the pin hole (1321) are both spherical structures. The body of the positioning pin (1323) is provided with a tapered part (1336) for pressing the wedge structure and a reduced part (1337) for avoiding the wedge structure.

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