A type of clamping fixture that can simultaneously center and clamp freely adjustable clamping gap locking components.

Abstract

This utility model discloses a clamping fixture capable of simultaneously centering and clamping with freely adjustable clamping gaps, belonging to the field of nitrogen and oxygen sensor assembly technology. It includes a base plate, with a centering clamping mechanism slidably connected to the top surface of the base plate. The centering clamping mechanism includes a first driving part fixed to the top surface of the base plate, and a gap adjusting part symmetrically connected to the first driving part. The gap adjusting part is hinged to a clamping part, which includes a sliding part hinged to the gap adjusting part. A clamping claw is fixed to the top of the sliding part, and the sliding part is slidably connected to the base plate. A chip positioning mechanism is provided between the two clamping claws. The chip positioning mechanism includes a probe positioning seat fixed to the base plate. An assembly mechanism is provided on the side of the base plate away from the centering clamping mechanism. This utility model allows for adjustment of the clamping gap via the gap adjusting part to accommodate different ceramic parts. The first driving part enables simultaneous centering clamping from both sides, effectively solving the problem of existing fixtures causing ceramic parts to not be centered when clamped sequentially from both sides.

Description

Technical Field

[0001] This utility model belongs to the field of nitrogen and oxygen sensor assembly technology, and in particular relates to a clamping fixture that can simultaneously center and clamp freely adjustable clamping gap locking parts. Background Technology

[0002] During the assembly of a nitrogen-oxygen sensor, the locking components need to be mounted onto the ceramic parts, requiring a new assembly fixture. Most existing assembly fixtures can only use fixed clamping gaps and cannot achieve simultaneous centering clamping, thus failing to meet the precision and clearance requirements for assembling the nitrogen-oxygen sensor locking components. Utility Model Content

[0003] The purpose of this invention is to provide a clamping fixture that can simultaneously center and clamp freely adjustable clamping gap locking parts, thereby solving the problems existing in the prior art.

[0004] To achieve the above objectives, this utility model provides the following solution: This utility model provides a clamping fixture that can simultaneously center and clamp freely adjustable clamping gaps, including a base plate. A centering clamping mechanism is slidably connected to the top surface of the base plate. The centering clamping mechanism includes a first driving part fixed to the top surface of the base plate. A gap adjusting member is symmetrically driven connected to the first driving part. A clamping part is hinged to the gap adjusting member. The clamping part includes a sliding member hinged to the gap adjusting member. A clamping claw is fixed to the top of the sliding member. The sliding member is slidably connected to the base plate. A chip positioning mechanism is provided between the two clamping claws. The chip positioning mechanism includes a probe positioning seat fixed to the base plate. An assembly mechanism is provided on the side of the base plate away from the centering clamping mechanism.

[0005] Optionally, the top surface of the base plate is provided with a guide rail, the sliding member is slidably connected to the guide rail, the sliding member includes a first slider slidably connected to the guide rail, the first slider is hinged to the gap adjusting member, and the clamping claw is fixedly connected to the end of the first slider away from the gap adjusting member.

[0006] Optionally, the gap adjustment component is a fisheye connecting rod, which is hinged to the clamping claw and the first driving part respectively.

[0007] Optionally, the first drive unit includes a first quick-release wrench fixed to the top surface of the base plate, and a connecting block is fixed to the output end of the first quick-release wrench. The connecting block is hinged to the two fisheye connecting rods respectively.

[0008] Optionally, the probe positioning base is provided with a positioning plate.

[0009] Optionally, the probe positioning seat is provided with a slot.

[0010] Optionally, the assembly mechanism includes a second quick-release wrench fixed to the top surface of the base plate, and a locking fixture is fixed to the output end of the second quick-release wrench.

[0011] Optionally, the locking fixture is provided with a U-shaped groove.

[0012] Optionally, support columns are fixed to the four corners of the bottom surface of the base plate.

[0013] This utility model discloses the following technical effects: The clamping gap can be adjusted by the gap adjustment component to adapt to different ceramic parts. The first driving part realizes simultaneous centering and clamping on both sides, effectively solving the problem that the ceramic parts cannot be centered due to the sequential clamping of ceramic parts on both sides in the existing fixture. The probe positioning seat is used to position the chip to ensure that the thin film will not be deformed, which meets the stringent process requirements. This utility model has good overall rigidity and strong anti-deformation ability, ensuring the stability of the assembly process. The modular design facilitates manufacturing and maintenance. Attached Figure Description

[0014] The accompanying drawings, which form part of this application, are used to provide a further understanding of this application. The embodiments of this application and their descriptions are used to explain this application and do not constitute an undue limitation of this application. In the drawings:

[0015] Figure 1 This is a schematic diagram of the structure of this utility model;

[0016] Figure 2 This is a top view of the present invention;

[0017] Figure 3 This is a schematic diagram of the chip positioning mechanism of this utility model;

[0018] Figure 4 This is a side view of the present invention;

[0019] Figure 5 This is a schematic diagram of the structure of this utility model before clamping;

[0020] Figure 6 This is a schematic diagram of the structure of this utility model after clamping.

[0021] Figure label:

[0022] 1. Base plate; 2. Guide rail; 3. Locking fixture; 4. Probe positioning seat; 5. Positioning plate; 6. Fisheye connecting rod; 7. First quick wrench; 8. Second quick wrench; 9. Clamping claw; 10. Connecting block; 11. First slider; 12. U-shaped groove; 13. Groove; 31. Support column. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0024] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the utility model will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0025] Reference Figures 1 to 6 As shown, this embodiment provides a clamping fixture that can simultaneously center and clamp freely adjustable clamping gaps, including a base plate 1. A centering clamping mechanism is slidably connected to the top surface of the base plate 1. The centering clamping mechanism includes a first driving part fixed to the top surface of the base plate 1. A gap adjusting member is symmetrically connected to the first driving part. A clamping part is hinged to the gap adjusting member. The clamping part includes a sliding member hinged to the gap adjusting member. A clamping claw 9 is fixed to the top of the sliding member. The sliding member is slidably connected to the base plate 1. A chip positioning mechanism is provided between the two clamping claws 9. The chip positioning mechanism includes a probe positioning seat 4 fixed to the base plate 1. An assembly mechanism is provided on the side of the base plate 1 away from the centering clamping mechanism.

[0026] This invention allows for adjustment of the clamping gap via a gap adjustment component to accommodate different ceramic parts. The first drive unit enables simultaneous centering and clamping on both sides, effectively solving the problem of ceramic parts not being centered due to sequential clamping on both sides in existing fixtures. The probe positioning seat 4 is used to position the chip, ensuring that the thin sheet will not deform, thus meeting stringent process requirements. This invention has good overall rigidity and strong resistance to deformation, ensuring stable assembly. The modular design facilitates manufacturing and maintenance.

[0027] Further optimization of the scheme: the top surface of the base plate 1 is provided with a guide rail 2, and the sliding member is slidably connected to the guide rail 2. The sliding member includes a first slider 11 slidably connected to the guide rail 2. The first slider 11 is hinged to the gap adjustment member, and a clamping claw 9 is fixedly connected to the end of the first slider 11 away from the gap adjustment member.

[0028] The scheme was further optimized, and the gap adjustment component was a fisheye connecting rod 6, which was hinged to the clamping claw 9 and the first drive unit respectively.

[0029] The scheme is further optimized. The first drive unit includes a first quick wrench 7 fixed to the top surface of the base plate 1. The output end of the first quick wrench 7 is fixed to a connecting block 10, and the connecting block 10 is hinged to two fisheye connecting rods 6 respectively.

[0030] Pulling down the first quick-release wrench 7 can pull the fisheye connecting rod 6, which in turn drives the clamping claw 9 mounted on the guide rail 2 to clamp simultaneously.

[0031] The design has been further optimized by adding a positioning piece 5 to the probe positioning base 4.

[0032] To further optimize the design, the probe positioning seat 4 is provided with a slot 13.

[0033] The two-point positioning chip is achieved by using the slot 13 on the probe positioning seat 4 and the positioning piece 5, so that the chip is perpendicular to the ceramic part and the locking part to be assembled.

[0034] The scheme is further optimized. The assembly mechanism includes a second quick wrench 8 fixed to the top surface of the base plate 1, and a locking fixture 3 is fixed to the output end of the second quick wrench 8.

[0035] The design has been further optimized by adding a U-shaped groove 12 to the lock fixture 3.

[0036] The assembly can be completed by pushing the second quick wrench 8. The locking fixture 3 has a U-shaped groove with the same size as the outer diameter of the locking part to fix the locking part.

[0037] The design was further optimized by fixing support columns 31 to the four corners of the bottom surface of the base plate 1.

[0038] In the description of this utility model, it should be understood that the terms "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "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 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.

[0039] The embodiments described above are merely preferred embodiments of the present utility model and are not intended to limit the scope of the present utility model. Various modifications and improvements made to the technical solutions of the present utility model by those skilled in the art without departing from the spirit of the present utility model should fall within the protection scope defined by the claims of the present utility model.

Claims

1. A clamping fixture capable of simultaneously centering and clamping freely adjustable clamping gap locking components, characterized in that: The device includes a base plate (1), on the top surface of which a centering clamping mechanism is slidably connected. The centering clamping mechanism includes a first driving part fixed to the top surface of the base plate (1). The first driving part is symmetrically connected to a gap adjusting member. The gap adjusting member is hinged to a clamping part. The clamping part includes a sliding member hinged to the gap adjusting member. The top of the sliding member is fixed to a clamping claw (9). The sliding member is slidably connected to the base plate (1). A chip positioning mechanism is provided between the two clamping claws (9). The chip positioning mechanism includes a probe positioning seat (4) fixed to the base plate (1). An assembly mechanism is provided on the side of the base plate (1) away from the centering clamping mechanism.

2. The clamping fixture capable of simultaneously centering and clamping freely adjustable clamping gap locking components according to claim 1, characterized in that: The top surface of the base plate (1) is provided with a guide rail (2), the sliding member is slidably connected to the guide rail (2), the sliding member includes a first slider (11) slidably connected to the guide rail (2), the first slider (11) is hinged to the gap adjustment member, and the clamping claw (9) is fixedly connected to one end of the first slider (11) away from the gap adjustment member.

3. The clamping fixture capable of simultaneously centering and clamping freely adjustable clamping gap locking components according to claim 2, characterized in that: The gap adjustment component is a fisheye connecting rod (6), which is hinged to the clamping claw (9) and the first drive unit respectively.

4. The clamping fixture capable of simultaneously centering and clamping freely adjustable clamping gap locking components according to claim 3, characterized in that: The first drive unit includes a first quick wrench (7) fixed to the top surface of the base plate (1). The output end of the first quick wrench (7) is fixed to a connecting block (10), and the connecting block (10) is hinged to the two fisheye connecting rods (6) respectively.

5. The clamping fixture capable of simultaneously centering and clamping freely adjustable clamping gap locking components according to claim 1, characterized in that: The probe positioning base (4) is provided with a positioning piece (5).

6. The clamping fixture capable of simultaneously centering and clamping freely adjustable clamping gap locking components according to claim 1, characterized in that: The probe positioning seat (4) is provided with a slot (13).

7. The clamping fixture capable of simultaneously centering and clamping freely adjustable clamping gap locking components according to claim 1, characterized in that: The assembly mechanism includes a second quick wrench (8) fixed to the top surface of the base plate (1), and a locking fixture (3) is fixed to the output end of the second quick wrench (8).

8. The clamping fixture for simultaneously centering and clamping freely adjustable clamping gap locking components according to claim 7, characterized in that: The locking fixture (3) is provided with a U-shaped groove (12).

9. The clamping fixture for simultaneously centering and clamping freely adjustable clamping gap locking components according to claim 1, characterized in that: Support columns (31) are fixed to the four corners of the bottom surface of the base plate (1).

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