Checking fixture capable of quickly replacing functional parts

Abstract

The utility model relates to a testing fixture capable of quickly replacing functional parts, which comprises a base and a plurality of functional part assemblies, each functional part assembly comprises a mounting plate and a functional part, the mounting plate is connected with the base through a quick-release device, the base is provided with a plurality of sliding balls, the quick-release device comprises an upper connecting seat, a lower connecting seat and a lock cylinder, the upper connecting seat is connected with a locking rod, and the locking rod is connected with the functional part. A clamping groove is formed in the locking rod, the lock cylinder comprises a locking block and a sliding rod, an unlocking groove is formed in the locking block, a transverse lock cylinder installation groove, a vertical locking rod hole and a first sliding groove are formed in the lower connecting base, a first spring is installed on the sliding rod, in the locking state, the locking block is clamped in the clamping groove of the locking rod, and in the unlocking state, the locking rod is located in the unlocking groove of the locking block. According to the testing fixture, the quick-release device is adopted to replace a conventional pin to connect the base and the functional part assembly, so that one set of base can be matched with a plurality of functional part assemblies, the effect that one set of base has multiple purposes is achieved, the cost is saved, and the quick-release device is reasonable in structure and simple and quick to operate.

Description

Technical Field

[0001] The utility model relates to a fixture, in particular to a fixture capable of quickly replacing functional components. Background Art

[0002] In manufacturing production enterprises, fixtures are needed to detect the performance of the produced products. For example, in automobile parts production enterprises, bumper fixtures need to be configured to detect the performance indicators of the produced bumpers to determine whether the produced products meet the requirements of qualified products. Different functional components are required to detect different indicators or products of different specifications. Therefore, multiple different functional component assemblies need to be configured for different detection indicators and different models of products. If each functional component assembly is correspondingly equipped with a fixture base, there will be problems of large occupied space and waste of site. Therefore, a fixture that is convenient for replacing functional components on the base needs to be designed, so that only one base needs to be configured, and there is no need to configure a base for each functional component assembly.

[0003] Chinese Utility Model Patent No. 202222323705.X discloses a quick-change structure for an automobile parts fixture. The structure includes a placement table, on which a positioning structure is fixedly installed; a plurality of placement racks are fixedly installed on the placement table, the placement racks are arranged at intervals, a plurality of placement blocks are fixedly installed on the placement racks, a chute is arranged opposite to the placement blocks, a lifting plate is slidably matched in the chute, a mounting seat is installed on the lifting plate, a ball is embedded in the mounting seat, and a lifting cylinder is fixedly installed on the placement rack. This technical solution has a quick positioning function and can position the functional component on it. However, its structure is complex, difficult to prepare, and the maintenance and repair costs are relatively high, and it is not very suitable for the production site. Summary of the Invention

[0004] The technical problem to be solved by the utility model is to provide a fixture capable of quickly replacing functional components. The fixture uses a quick-release device to replace the conventional pin connection between the base and the functional component assembly, enabling a set of bases to be matched with multiple functional component assemblies, achieving the effect of multiple uses of a set of bases, saving costs, and the quick-release device has a reasonable structure and simple and fast operation.

[0005] The technical solution to solve the above technical problems is: A fixture with quickly replaceable functional components, including a base and multiple functional component assemblies with different functions of the functional components. The functional component assembly includes a mounting plate and a functional component arranged on the mounting plate. The mounting plate is connected to the base through a quick-release device. A plurality of sliding balls are arranged on the base. The quick-release device includes an upper connecting seat, a lower connecting seat and a lock core. The bottom end of the upper connecting seat is connected with a locking rod, and a clamping groove is opened on the locking rod. The lock core includes a lock block and a sliding rod fixed on the lock block. An unlocking groove is opened on the lock block. A horizontally communicated lock core installation groove, a vertical lock rod hole and a first chute for cooperating with the sliding rod of the lock core are opened in the lower connecting seat. The lock core is placed in the horizontally lock core installation groove, and a first spring is installed on the sliding rod.

[0006] In the locked state, the locking rod is located in the vertical lock rod hole of the lower connecting seat, the lock block is stuck in the clamping groove of the locking rod, and the first spring is in a natural state. In the unlocked state, the locking rod is located in the unlocking groove of the lock block, the first spring is in a compressed state, and the end of the sliding rod of the lock core is located in the first chute of the lower connecting seat.

[0007] Further, the quick-release device further includes a first lifting component. A lifting component installation hole is further opened in the lower connecting seat below the vertical lock rod hole. The lifting component includes a mounting seat, a lifting rod and a lifting block fixed on the upper end of the lifting rod. A second chute is opened at the bottom end of the mounting seat. The cross-sectional shape of the lifting rod is an inverted T shape. The lifting rod passes through the mounting seat, and the bottom end of the lifting rod is located in the second chute. A second spring is installed on the lifting rod between the lifting block and the mounting seat. In the locked state, the locking rod presses the lifting block, and the second spring is in a compressed state.

[0008] Further, a guiding groove is opened on the bottom end surface of the upper connecting seat, and a guiding column for cooperating with the guiding groove is arranged on the top end surface of the lower connecting seat.

[0009] Further, 2-8 quick-release devices are provided. The upper connecting seats of the quick-release devices are installed on the mounting plates of the functional component assemblies, and the lower connecting seats are installed on the base.

[0010] Further, a push-type locking component is arranged on the functional component. The push-type locking component includes an upper locking rod and a lower fixing seat. Two outwardly convex rods are symmetrically arranged on both sides of the lower end of the upper locking rod. A lock rod moving hole and a turning moving hole which are communicated with each other are sequentially opened from top to bottom in the lower fixing seat. Two sliding channels for the outwardly convex rods to pass through are opened on the inner wall of the lock rod moving hole. Two outwardly convex rod positioning grooves are opened on the inner wall of the bottom end of the lock rod moving hole between the two sliding channels. The convex rod positioning groove is communicated with the turning moving hole. In the locked state, the outwardly convex rods are located in the outwardly convex rod positioning grooves.

[0011] Further, the pressing type locking member further includes a second jacking assembly. The second jacking assembly includes a bottom plate, a convex rod, and a jacking column. An inner groove is formed at the bottom end of the bottom plate. The lower fixing seat is installed on the bottom plate. The bottom end of the convex rod is located in the inner groove of the bottom plate. The upper part of the convex rod passes through the inner groove and extends into the steering movable hole of the lower fixing seat. The jacking column is fixed to the upper end of the convex rod. A third spring is further installed on the upper part of the convex rod. The third spring is located between the jacking column and the bottom plate. In the locked state, the upper locking rod presses the jacking column, and the third spring is in a compressed state.

[0012] Due to the adoption of the above technical solutions, the present utility model has the following beneficial effects:

[0013] 1. The functional component assembly and the base of the present utility model are connected by a quick-release device. That is, the quick-release device replaces the conventional pin connection. The structure of the quick-release device is reasonably designed. By pressing the lock core, the locking and unlocking functions can be realized, enabling the functional component assembly and the base to be quickly connected or disassembled. Such a design enables a set of bases to be matched with multiple functional component assemblies, achieving the effect of multiple uses of a set of bases. At the same time, materials are saved and costs are reduced.

[0014] 2. Sliding balls are arranged on the base of the present utility model, facilitating the movement of the mounting plate of the functional component assembly. Moreover, the structure of the quick-release device is simple. Only by pressing the lock core can the quick-release device be switched between the locked and unlocked states, ensuring that the operation of replacing the functional component assembly is convenient and fast.

[0015] 3. Generally, the functional components of existing inspection tools use a knob type locking member (the main components are bolts and nuts) to position the product to be inspected. During operation, the nut needs to be repeatedly rotated, which takes a long time and is cumbersome. The present utility model adopts a pressing type locking member with a simple structure. During operation, only by pressing and rotating the upper locking rod can the locking or unlocking be achieved. The operation is simple, labor-saving, and fast and convenient.

[0016] Next, in combination with the drawings and embodiments, the technical features of a kind of inspection tool with a quickly replaceable functional component of the present utility model will be further described. Description of the Drawings

[0017] Figure 1 : Schematic diagram of the inspection tool with a quickly replaceable functional component of the present utility model.

[0018] Figure 2 : Three-dimensional view of the base of the present utility model.

[0019] Figure 3 : Front view of the quick-release device of the present utility model.

[0020] Figure 4 : Figure 3 A-A cross-sectional view of

[0021] Figure 5 : Perspective view of the upper connecting seat of the quick-release device of the present utility model.

[0022] Figure 6 : Front view of the upper connecting seat of the quick-release device of the present utility model.

[0023] Figure 7 : Perspective view of the lock core and spring one of the quick-release device of the present utility model.

[0024] Figure 8 : Schematic diagram of the positions of the lock core and the locking rod of the quick-release device of the present utility model (locking state).

[0025] Figure 9 : Schematic diagram of the quick-release device of the present utility model (locking state, the lower connecting seat is omitted to show the internal structure).

[0026] Figure 10 : Front view of the lower connecting seat of the quick-release device of the present utility model.

[0027] Figure 11 : Figure 10 Cross-sectional view taken along line B-B of

[0028] Figure 12 : Figure 10 Cross-sectional view taken along line C-C of

[0029] Figure 13 : Perspective view of the lower connecting seat of the quick-release device of the present utility model.

[0030] Figure 14 : Installation schematic diagram of the lower connecting seat and the first jacking component of the quick-release device of the present utility model.

[0031] Figure 15 : Perspective view of the push-type locking member of the present utility model.

[0032] Figure 16 : Front cross-sectional view of the push-type locking member of the present utility model.

[0033] Figure 17 : Front view of the push-type locking member of the present utility model.

[0034] Figure 18 : Figure 17 Cross-sectional view taken along line D-D of

[0035] Figure 19 : Front cross-sectional view of the lower fixing seat of the push-type locking member of the present utility model.

[0036] Figure 20 : Bottom view of the lower fixing seat of the push-type locking member of the present utility model.

[0037] In the figure: 1 - base, 2 - functional component assembly, 21 - mounting plate, 22 - functional component.

[0038] 3 - quick-release device, 31 - upper connecting seat, 311 - guiding groove, 32 - lower connecting seat, 321 - first sliding groove, 322 - vertical locking rod hole, 323 - transverse lock core mounting groove, 324 - jacking component mounting hole, 325 - guiding column, 33 - lock core, 331 - locking block, 332 - unlocking groove, 333 - sliding rod, 34 - locking rod, 341 - clamping groove, 35 - first jacking component, 351 - second sliding groove, 352 - mounting seat, 353 - jacking rod, 354 - second spring, 355 - jacking block.

[0039] 4 - operating button, 5 - sliding ball, 6 - first spring.

[0040] 7 - push-type locking component, 71 - upper locking rod, 72 - protruding rod, 73 - lower fixing seat, 731 - sliding track, 732 - locking rod moving hole, 733 - turning moving hole, 734 - protruding rod positioning groove, 74 - second jacking component, 741 - bottom plate, 742 - convex rod, 743 - third spring, 744 - jacking column, 745 - inner groove. Specific implementation mode

[0041] An inspection tool with a functional component that can be quickly replaced, as Figures 1 - 2 shown, includes a base 1 and a plurality of functional component assemblies 2 with different functions of the functional components. The functional component assembly includes a mounting plate 21 and a functional component 22 arranged on the mounting plate. The mounting plate 21 is connected to the base 1 through a quick-release device 3. A plurality of sliding balls 5 are arranged on the base 1. The function of arranging the sliding balls 5 is to facilitate the movement of the mounting plate 21 on the base 1.

[0042] The quick-release device 3 (as Figures 3 - 14 shown) includes an upper connecting seat 31, a lower connecting seat 32 and a lock core 33. The bottom end of the upper connecting seat 31 is connected with a locking rod 34. A clamping groove 341 is formed on the locking rod 34. The lock core 33 includes a locking block 331 and two sliding rods 333 fixed to the rear end of the locking block. An unlocking groove 332 is formed on the locking block 331. A communicating transverse lock core mounting groove 323, a vertical locking rod hole 322 and two first sliding grooves 321 for cooperating with the lock core sliding rod are formed in the lower connecting seat 32. The lock core 33 is movably placed in the transverse lock core mounting groove 323. The lock core 33 can move horizontally in the transverse lock core mounting groove 323. A first spring 6 is installed on the sliding rod 333. The first spring 6 is located between the first sliding groove 321 and the locking block 331.

[0043] In the locked state, the locking rod 34 is located within the vertical locking rod hole 322 of the lower connecting seat. The locking block 331 is stuck within the card slot 341 of the locking rod. The locking block exerts a restraint on the locking rod, preventing the locking rod 34 from moving up and down. At this time, the first spring 6 is in its natural state. When unlocking is required, the lock core 33 is pressed in the direction of the first chute 321, causing the unlocking groove 332 of the lock core to move towards the locking rod 34, moving the locking block 331 out of the card slot 341 of the locking rod. The unlocking groove 332 of the lock core moves to the position of the locking rod 34. The locking block no longer restrains the locking rod, and the locking rod can move upward to disengage from the lower connecting seat 32 to achieve unlocking. That is, in the unlocked state, the locking rod 34 is located within the unlocking groove 332 of the locking block. The first spring 6 is in a compressed state, and the end of the sliding rod 333 of the lock core is located within the first chute 321 of the lower connecting seat. After releasing the lock core 33, the lock core returns to its original position under the action of the first spring 6.

[0044] In this embodiment, the quick-release device 3 further includes a first lifting assembly 35. An installation hole for the lifting assembly 324 is also provided within the lower connecting seat below the vertical locking rod hole. The lifting assembly includes a mounting seat 352, a lifting rod 353, and a lifting block 355 fixed to the upper end of the lifting rod. A second chute 351 is provided at the bottom end of the mounting seat 352. The cross-sectional shape of the lifting rod 353 is an inverted T shape. The lifting rod 353 passes through the mounting seat, and the bottom end of the lifting rod 353 is located within the second chute 351. The bottom end area of the lifting rod 353 is large and cannot pass through the mounting seat 352. A second spring 354 is installed on the lifting rod 353 between the lifting block 355 and the mounting seat 352. The function of the first lifting assembly 35 is: when locking, it can lift the locking rod 34 upward, enabling the locking rod to smoothly disengage from the lower connecting seat 32. Its action process is: when there is no external force, the second spring 354 is in its natural state or slightly compressed state. In the locked state, the locking rod 34 presses against the lifting block 355, causing the lifting block 355 and the lifting rod 353 to move downward synchronously. The lifting block 355 presses against the second spring 354, and the second spring 354 is in a compressed state. After locking, under the action of the second spring 354, the lifting block 355 and the lifting rod 353 move upward synchronously, lifting the locking rod 34 upward.

[0045] In this embodiment, four guiding grooves 311 are provided on the bottom end surface of the upper connecting seat 31, and four guiding columns 325 that cooperate with the guiding grooves are provided on the top end surface of the lower connecting seat 32. The upper connecting seat 31 of the quick-release device is installed on the mounting plate 21 of the functional component assembly, and the lower connecting seat 32 is installed on the base 1. Four quick-release devices are provided, respectively located at the four corners of the base 1.

[0046] In this embodiment, a push-type locking member 7 is provided on the functional member 22 (such as Figures 15 - 20As shown in the figure), the functional component can quickly lock the product to be detected. The push-type locking component 7 includes an upper locking rod 71 and a lower fixed seat 73. On both sides of the lower end of the upper locking rod 71, two outwardly protruding rods 72 are symmetrically arranged. Inside the lower fixed seat 73, a locking rod moving hole 732 and a steering moving hole 733 that communicate with each other are sequentially arranged from top to bottom. On the inner wall of the locking rod moving hole 732, two sliding channels 731 for the outwardly protruding rods to pass through are provided. On the inner wall of the bottom end of the locking rod moving hole 733 between the two sliding channels, two outwardly protruding rod positioning grooves 734 are provided. From the bottom view, the center lines of the two sliding channels 731 are perpendicular to the center lines of the two protruding rod positioning grooves 734 (as Figure 20 shown). The protruding rod positioning groove 734 communicates with the steering moving hole 733. In the locked state, the outwardly protruding rods 72 of the upper locking rod are located in the outwardly protruding rod positioning grooves 734. The working process of the push-type locking component 7 is as follows: The upper locking rod 71 extends into the locking rod moving hole 732 of the lower fixed seat and moves downward. The two outwardly protruding rods 72 of the upper locking rod move in the sliding channels 731. When the outwardly protruding rods 72 enter the steering moving hole 733, the upper locking rod 71 is rotated 90° and then moved upward, so that the outwardly protruding rods 72 enter the outwardly protruding rod positioning grooves 734 and are constrained. At this time, the upper locking rod 71 is locked and cannot be separated from the lower fixed seat 73.

[0047] In this embodiment, the pressing type locking member 7 further includes a second jacking component 74. The second jacking component 74 includes a bottom plate 741, a convex rod 742 and a jacking column 744. An inner groove 745 is formed at the bottom end of the bottom plate 741. The lower fixing seat 73 is installed on the bottom plate 741. The bottom end of the convex rod 742 is located in the inner groove 745 of the bottom plate. The upper part of the convex rod 742 passes through the inner groove and extends into the steering movable hole 733 of the lower fixing seat. The jacking column 744 is fixed to the upper end of the convex rod 742. A third spring 743 is further installed on the upper part of the convex rod 742. The third spring is located between the jacking column 744 and the bottom plate 741. The function of setting the second jacking component 74 is to make it easier for the upper locking rod 71 to enter the convex rod positioning groove 734 or to disengage from the locking rod movable hole 732. Its working principle is as follows: when there is no external force, the third spring 743 is in a natural state or a slightly compressed state, and the jacking column 744 is located in the locking rod movable hole 732. When the upper locking rod 71 enters the locking rod movable hole 732, it presses the jacking column 744 downward. The jacking column 744 and the convex rod 742 move downward, and the third spring 743 is compressed. When the upper locking rod 71 enters the steering movable hole 733 and rotates 90°, the upper locking rod 71 is released. Under the action of the third spring 743, the upper locking rod moves upward into the outer convex rod positioning groove 734 and is locked. That is, in the locked state, the upper locking rod 71 presses the jacking column 744, and the third spring 743 is in a compressed state. When unlocking is required, first press the upper locking rod 71 downward to the steering movable hole 733, rotate the upper locking rod 71 by 90° to align the outer convex rod 72 with the slideway 731, release the upper locking rod, and the upper locking rod 71 moves upward along the locking rod movable hole 732 under the action of the third spring 743. Finally, the upper locking rod 71 is completely pulled out of the lower fixing seat 73 manually to achieve unlocking.

[0048] The functional component described in the present utility model is determined according to the product model and performance to be detected. An operation button 4 is provided on the functional component as required for connecting with the upper locking rod 71 of the pressing type locking member 7, and the upper locking rod 71 is controlled by the operation button 4 to achieve locking and unlocking.

Claims

1. A gauge capable of quickly replacing functional parts, characterized in that: The invention relates to a locking device for locking a locking cylinder (33). The locking device comprises a base (1) and a plurality of functional component assemblies (2) having different functional components. The functional component assemblies comprise a mounting plate (21) and a functional component (22) arranged on the mounting plate. The mounting plate is connected to the base via a quick release device (3). The base is provided with a plurality of sliding balls (5). The quick release device comprises an upper connecting seat (31), a lower connecting seat (32) and a lock core (33). The bottom end of the upper connecting seat is connected to a locking rod (34). The locking rod is provided with a slot (341). The lock core comprises a locking block (331) and a sliding rod (333) fixed to the locking block. The locking block is provided with an unlocking groove (332). The lower connecting seat (32) is provided with a communicating transverse lock core mounting groove (323) and a vertical lock rod hole (322) and a sliding groove (321) cooperating with the lock core sliding rod. The lock core is placed in the transverse lock core mounting groove. A spring (6) is installed on the sliding rod (333). In the locked state, the locking rod (34) is located in the vertical locking rod hole (322) of the lower connecting seat, the locking block (331) is stuck in the locking groove (341) of the locking rod, and the spring (6) is in a natural state. In the unlocked state, the locking rod is located in the unlocking groove (332) of the locking block, the spring (6) is in a compressed state, and the end of the sliding rod (333) of the lock core is located in the sliding groove (321) of the lower connecting seat.

2. The inspection tool for quickly replacing functional parts according to claim 1, characterized in that: The quick-release device (3) also includes a jacking assembly (35), a jacking assembly mounting hole (324) is also provided in the lower connecting seat below the vertical locking rod hole, the jacking assembly includes a mounting seat (352), a jacking rod (353) and a jacking block (355) fixed to the upper end of the jacking rod, a second slide groove (351) is provided at the bottom end of the mounting seat, the cross-section of the jacking rod is an inverted T-shape, the jacking rod passes through the mounting seat, and the bottom end of the jacking rod is located in the second slide groove, and a second spring (354) is installed on the jacking rod between the jacking block and the mounting seat. When in a locked state, the locking rod presses the jacking block, and the second spring is in a compressed state.

3. The inspection tool for quickly replacing functional parts according to claim 1 or 2, characterized in that: A guide groove (311) is formed on the bottom end surface of the upper connecting seat, and a guide column (325) cooperating with the guide groove is provided on the top end surface of the lower connecting seat.

4. The inspection tool for quickly replacing functional parts according to claim 1 or 2, characterized in that: The quick-release devices are provided in 2-8 pieces, the upper connecting seat of the quick-release devices is installed on the mounting plate of the functional component assembly, and the lower connecting seat is installed on the base.

5. The inspection tool for quickly replacing functional parts according to claim 1 or 2, characterized in that: The functional part is provided with a push-type locking member (7), which comprises an upper locking rod (71) and a lower fixing seat (73), two outer convex rods (72) are symmetrically arranged on both sides of the lower end of the upper locking rod, and the lower fixing seat is provided with a locking rod movable hole (732) and a steering movable hole (733) which are connected to each other from top to bottom, and the inner wall of the locking rod movable hole is provided with two slideways (731) for the outer convex rod to pass through, and the inner wall of the bottom end of the locking rod movable hole between the two slideways is provided with two outer convex rod positioning grooves (734), the convex rod positioning grooves are connected to the steering movable hole, and in the locked state, the outer convex rod (72) is located in the outer convex rod positioning groove (734).

6. The inspection tool for quickly replacing functional parts according to claim 5, characterized in that: The push-type locking member also includes a lifting component 2 (74), and the lifting component 2 includes a base plate (741), a convex rod (742) and a lifting column (744). The bottom end of the base plate is provided with an inner groove (745), and the lower fixed seat (73) is installed on the base plate (741). The bottom end of the convex rod is located in the inner groove of the base plate, and the upper part of the convex rod extends through the inner groove to the steering movable hole (733) of the lower fixed seat. The lifting column is fixed to the upper end of the convex rod. A spring 3 (743) is also installed on the upper part of the convex rod. The spring 3 is located between the lifting column and the base plate. When in the locked state, the upper locking rod presses the lifting column, and the spring 3 is in a compressed state.

Images