Auxiliary clamp for mechanical precision detection

Abstract

The utility model relates to the technical field of clamps, in particular to an auxiliary clamp for mechanical precision detection, which intercepts a workpiece transported on a conveying roller through an intercepting device, adjusts the spatial position of the workpiece, and adjusts the position of the workpiece through an adjusting device matched with a limiting device. The workpiece is supported and fixed in cooperation with the fixing device, and the fixing device assists the detected workpiece to be conveyed out of a detection area, so that the practicability of the device is improved; the conveying device further comprises an intercepting device, an adjusting device, a fixing device and a limiting device, the intercepting device is installed on the left portion of the conveying rack, the adjusting device is installed at the bottom of the conveying rack and located on the right side of the intercepting device, the fixing device is installed on the adjusting device, and the limiting device is installed on the fixing device.

Description

Technical Field

[0001] The utility model relates to the technical field of jigs, in particular to a mechanical precision detection auxiliary jig. Background Art

[0002] Mechanical precision detection auxiliary jigs play a crucial role in the mechanical manufacturing industry. They are used to ensure the accuracy and efficiency of the detection process. Mechanical precision detection auxiliary jigs are tooling jigs designed specifically for precision detection, used to fix, support or position the workpiece to be detected, so as to ensure the stability and accuracy of the workpiece to be detected during the detection process. They can reduce human errors and improve detection accuracy, and are indispensable tools for precision detection.

[0003] The Chinese utility model patent with the application number CN201720325468.7 in the prior art relates to a jig for a high-efficiency energy-saving precision detection device of a circuit board, including a support frame, a frame-shaped plate, a probe plate, a lifting plate, a limiting groove, a positioning plate, a wire groove, a connecting plate, etc., which can quickly clamp and accurately position, improve detection efficiency and save costs.

[0004] However, the above device does not have the ability to adjust the position of the workpiece during actual use, and the operator needs to straighten the workpiece. At the same time, the above device does not have the ability to automatically release and discharge the workpiece after the detection is completed, and the operator needs to manually take out the workpiece, increasing the labor intensity of the operator. Summary of the Utility Model

[0005] To solve the above technical problems, the utility model provides a mechanical precision detection auxiliary jig, which intercepts the workpiece transported on the conveying roller through an interception device, adjusts the spatial position of the workpiece, adjusts the position of the workpiece through a regulating device in cooperation with a limiting device, supports the workpiece and cooperates with a fixing device to fix the workpiece, and automatically transports the workpiece that has completed the detection out of the detection area through the fixing device, improving the practicability of the device.

[0006] The utility model discloses a mechanical precision detection auxiliary fixture, comprising a conveying frame, conveying rollers and a driving device, wherein a plurality of conveying rollers are horizontally mounted on the conveying frame, a driving device is mounted on the front end surface of the conveying frame, and a plurality of output ends of the driving device are respectively connected with the plurality of conveying rollers; the utility model also comprises an intercepting device, an adjusting device, a fixing device and a limiting device, wherein the intercepting device is mounted on the left part of the conveying frame, the adjusting device is mounted on the bottom of the conveying frame and is located on the right side of the intercepting device, the fixing device is mounted on the adjusting device, and the limiting device is mounted on the fixing device; the workpiece transported on the conveying roller is intercepted by the intercepting device, and the spatial position of the workpiece is adjusted, the position of the workpiece is adjusted by the adjusting device in cooperation with the limiting device, the workpiece is supported and fixed by the fixing device, and the workpiece that has been inspected is transported out of the inspection area with the assistance of the fixing device, thereby improving the practicability of the device.

[0007] Preferably, the intercepting device comprises a mounting plate, a first electric cylinder, an intercepting plate, a first limit light rod and a first pressure sensor. The upper part of the conveying frame is mounted with a mounting plate, the mounting plate is located on the left side of the plurality of conveying rollers, a group of first electric cylinders are mounted on the front and rear of the left end face of the mounting plate, the moving end of the first electric cylinder passes through the left end face of the mounting plate and extends to the right side of the mounting plate and is connected to a group of intercepting plates through the first pressure sensor, a plurality of first limit light rods are connected to the left end face of the intercepting plate, and the plurality of first limit light rods all pass through the mounting plate and extend to the left side of the mounting plate; the workpiece is transported by the plurality of conveying rollers, and when the workpiece is transported to the leftmost side, One side of the front end face of the workpiece contacts with a group of interception plates and is intercepted by the interception plates. As the conveyor roller continues to rotate, the other side of the front side of the workpiece is driven to contact with another group of interception plates. The pressure on the interception plate is monitored by the first pressure sensor. When pressure is monitored on both groups of first pressure sensors, the workpiece has been straightened, and the operator does not need to manually straighten the workpiece, which reduces the labor intensity of the operator. After completing the inspection of the workpiece, the two groups of first electric cylinders are controlled to contract and then drive the interception plate to move to the left, which is convenient for outputting the inspected workpiece from the space between the mounting plate and the conveyor roller to the device, thereby improving the inspection efficiency and practicability of the device.

[0008] Preferably, the adjusting device includes an adjusting box, a driving motor, a bidirectional lead screw, and an adjusting platform. The adjusting box is installed on the bottom surface of the conveying frame. The adjusting box is located below the left multi-group conveying rollers. Multiple groups of sliding limit grooves are provided on the adjusting box. Each group of sliding limit grooves is located below the gap between adjacent two groups of conveying rollers. A group of bidirectional lead screws and two groups of adjusting platforms are respectively installed in each group of sliding limit grooves. The two groups of adjusting platforms are both connected to the bidirectional lead screw through nuts. The two groups of adjusting platforms are symmetric with respect to the middle position of the bidirectional lead screw. Multiple groups of driving motors are installed on the front end surface of the adjusting box corresponding to the positions of the multiple groups of sliding limit grooves. The output ends of the multiple groups of driving motors are respectively connected to the multiple groups of bidirectional lead screws. When the driving motors are turned on, the power is transmitted to the bidirectional lead screws they are connected to, driving the bidirectional lead screws to rotate, and cooperating with the nuts on the adjusting platforms to drive the adjusting platforms on the same bidirectional lead screw to move towards or away from each other, thereby driving the fixing device to cooperate with the limiting device to complete the position adjustment and fixing of the workpiece, improving the practicability of the device.

[0009] Preferably, the fixing device includes a lifting electric cylinder, a C-shaped frame, a fixing electric cylinder, a rubber pressing plate, and a second pressure sensor. The lifting electric cylinder is installed on the upper end surface of the adjusting platform. The moving end of the lifting electric cylinder is connected to the C-shaped frame. The C-shaped frame can move to the upper side of the conveying rollers. The fixing electric cylinder is installed on the upper end surface of the upper part of the C-shaped frame. The moving end of the fixing electric cylinder passes through the upper part of the C-shaped frame and extends to the middle of the C-shaped frame and is connected to the rubber pressing plate through the second pressure sensor. By cooperating with the adjusting device to adjust the position, the front and rear edges of the workpiece are respectively located inside multiple groups of C-shaped frames. Then, control the fixing electric cylinder to extend to drive the rubber pressing plate to move downward to press the upper end surface edge of the workpiece, thereby fixing the upper end surface edge of the workpiece, facilitating the detection process, and at the same time reducing the influence of the vibration of the workpiece itself on the detection during the detection process. By controlling multiple groups of lifting electric cylinders to extend simultaneously, the fixed workpiece is lifted to facilitate the detection operation. The rubber pressing plate reduces the wear on the surface of the workpiece during the fixing process. The second pressure sensor monitors the pressure on the moving end of the fixing electric cylinder to prevent damage to the workpiece caused by excessive pressure, improving the practicability of the device.

[0010] Preferably, the limiting device includes a sleeve, a limiting plate, a connecting rod, a spring, a push switch, and a second limiting optical rod. A sleeve is installed at the lower part of the outer side surface of the C-shaped frame. The limiting plate is located at the lower part inside the C-shaped frame. A connecting rod is installed on the outer end surface of the limiting plate. The connecting rod is inserted into the sleeve and connected to the inner plane of the sleeve through a spring. A push switch is installed on the inner plane of the sleeve. A set of second limiting optical rods are respectively arranged on the upper and lower parts of the outer side surface of the limiting plate. When the adjusting device drives the fixing device to move horizontally, the edge of the workpiece presses against the limiting plate until the two side edges of the workpiece respectively press against the two limiting plates. When the two connecting rods respectively contact the push switches in their respective sleeves, the adjustment of the position of the workpiece is completed. There is no need for the operator to adjust the text of the workpiece, reducing the labor intensity of the operator. The horizontal movement process of the limiting plate is limited by the two sets of second limiting optical rods, and the spring provides elastic protection for the limiting plate to prevent the connecting rod from pressing against the push switch for a long time during the position adjustment process, affecting the service life of the push switch, and improving the practicability of the device.

[0011] Preferably, the left part of the upper end surface of the C-shaped frame is set as a rounded corner. After the detection of the workpiece is completed, control the fixing electric cylinder to contract and control the adjustment platform to move backward horizontally by a certain distance, keeping the workpiece supported by multiple C-shaped frames. Control multiple lifting electric cylinders to adjust the height, making the left part of the workpiece tilt downward, and then making the left part of the lower end surface of the workpiece contact the left conveying roller, driving the workpiece to slide out of the equipment detection area from the space between the conveying roller and the mounting plate. Through the rounded corner set on the left part of the upper end surface of the C-shaped frame, the scratch on the surface of the workpiece during the sliding process is reduced, and the practicability of the device is improved.

[0012] Preferably, a set of grooves are respectively arranged before and after the rounded corner area of the left part of the C-shaped frame, and rubber wheels are installed in the grooves. The top surface of the rubber wheel is lower than the upper end surface of the C-shaped frame. The rubber wheels on the rounded corner area of the C-shaped frame provide auxiliary support for the sliding process of the workpiece, reducing the wear on the lower end surface of the workpiece during the sliding process, and improving the practicability of the device.

[0013] Compared with the prior art, the beneficial effects of the present utility model are as follows: The workpiece transported on the conveying roller is intercepted by the interception device, and the spatial position of the workpiece is adjusted. The position of the workpiece is adjusted by the adjustment device in cooperation with the limiting device, and the workpiece is supported and fixed in cooperation with the fixing device. The workpiece that has completed the detection is transported out of the detection area by the fixing device, improving the practicability of the device. Brief Description of the Drawings

[0014] Figure 1 is the axonometric structural schematic diagram of the present utility model;

[0015] Figure 2 is the first sectional structural schematic diagram of the present utility model;

[0016] Figure 3It is a schematic diagram of the second sectional structure of the present utility model;

[0017] Figure 4 It is an axonometric structure diagram of the fixing device;

[0018] Figure 5 It is a schematic diagram of the sectional structure of the limiting device;

[0019] Reference numerals in the drawings: 1, conveyor frame; 2, conveying roller; 3, driving device; 4, mounting plate; 5, first electric cylinder; 6, intercepting plate; 7, first limiting optical rod; 8, first pressure sensor; 9, adjusting box; 10, driving motor; 11, bidirectional lead screw; 12, adjusting platform; 13, lifting electric cylinder; 14, C-shaped frame; 15, fixing electric cylinder; 16, rubber pressing plate; 17, second pressure sensor; 18, sleeve; 19, limiting plate; 20, connecting rod; 21, spring; 22, pressing switch; 23, second limiting optical rod; 24, rubber wheel. Specific embodiments

[0020] To facilitate the understanding of the present utility model, the present utility model will be described more comprehensively below with reference to the relevant drawings. The present utility model can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of the present utility model more thorough and comprehensive.

[0021] Embodiment

[0022] As Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5 shown, the intercepting device is installed on the conveyor frame 1, the adjusting device is installed at the lower part of the conveyor frame 1, the fixing device is installed on the adjusting device, and the limiting device is installed on the fixing device;

[0023] First, multiple groups of conveying rollers 2 transport the workpiece. When the workpiece is transported to the leftmost side, one side of the front end face of the workpiece contacts a group of intercepting plates 6 and is intercepted by the intercepting plates 6. As the conveying rollers 2 continue to rotate, the other side of the front side of the workpiece is driven to contact another group of intercepting plates 6. The pressure on the intercepting plates 6 is monitored by the first pressure sensors 8. When pressure is detected on both groups of first pressure sensors 8, it means the workpiece is properly positioned. Then, control the multiple groups of lifting electric cylinders 13 to extend, lifting the middle part of the C-shaped frame 14 to the height where the workpiece is located. Then, start the driving motor 10 to transmit power to the bidirectional lead screw 11 it is connected to, driving the bidirectional lead screw 11 to rotate. Cooperating with the nuts on the adjusting platform 12, the adjusting platforms 12 on the same bidirectional lead screw 11 move towards each other, so that multiple groups of C-shaped frames 14 on both sides squeeze the workpiece to adjust the position of the workpiece. The edge of the workpiece squeezes the limiting plates 19 until the two edges of the workpiece respectively squeeze the two groups of limiting plates 19, and when the two connecting rods 20 respectively contact the pressing switches 22 in their respective sleeves 18, the adjustment of the workpiece position is completed. Then, control the multiple groups of lifting electric cylinders 13 to extend simultaneously, lifting the fixed workpiece for inspection operations. After the inspection of the workpiece is completed, control the fixed electric cylinder 15 to contract and control the adjusting platform 12 to move horizontally backward a certain distance, keeping the workpiece supported by multiple groups of C-shaped frames 14. Control the multiple groups of lifting electric cylinders 13 to adjust the height, making the left part of the workpiece tilt downward, so that the left part of the lower end face of the workpiece contacts the left conveying roller 2, driving the workpiece to slide out of the equipment detection area from the space between the conveying roller 2 and the mounting plate 4;

[0024] The intercepting device includes a mounting plate 4, a first electric cylinder 5, intercepting plates 6, first limiting optical rods 7, and first pressure sensors 8. The upper part of the conveying frame 1 is provided with a mounting plate 4. The mounting plate 4 is located on the left side of multiple groups of conveying rollers 2. A group of first electric cylinders 5 are respectively installed on the front and rear of the left end face of the mounting plate 4. The moving end of the first electric cylinder 5 passes through the left end face of the mounting plate 4 and extends to the right side of the mounting plate 4 and is connected to a group of intercepting plates 6 through the first pressure sensors 8. Multiple groups of first limiting optical rods 7 are connected to the left end face of the intercepting plates 6, and multiple groups of first limiting optical rods 7 all pass through the mounting plate 4 and extend to the left side of the mounting plate 4;

[0025] The adjusting device includes an adjusting box 9, a driving motor 10, a bidirectional lead screw 11, and an adjusting platform 12. The adjusting box 9 is installed on the bottom end face of the conveying frame 1. The adjusting box 9 is located below the left multiple groups of conveying rollers 2. Multiple groups of sliding limiting grooves are provided on the adjusting box 9. Each group of sliding limiting grooves is located below the gap between adjacent two groups of conveying rollers 2. A group of bidirectional lead screws 11 and two groups of adjusting platforms 12 are respectively installed in each group of sliding limiting grooves. The two groups of adjusting platforms 12 are both connected to the bidirectional lead screw 11 through nuts. The two groups of adjusting platforms 12 are symmetric with respect to the middle position of the bidirectional lead screw 11. Multiple groups of driving motors 10 are installed on the front end face of the adjusting box 9 corresponding to the positions of multiple groups of sliding limiting grooves. The output ends of multiple groups of driving motors 10 are respectively connected to multiple groups of bidirectional lead screws 11;

[0026] The fixing device includes a lifting electric cylinder 13, a C-shaped frame 14, a fixing electric cylinder 15, a rubber pressing plate 16 and a second pressure sensor 17. The lifting electric cylinder 13 is installed on the upper end surface of the adjusting platform 12. The moving end of the lifting electric cylinder 13 is connected with the C-shaped frame 14. The C-shaped frame 14 can move to the upper side of the conveying roller 2. The fixing electric cylinder 15 is installed on the upper end surface of the upper part of the C-shaped frame 14. The moving end of the fixing electric cylinder 15 passes through the upper part of the C-shaped frame 14 and extends to the middle of the C-shaped frame 14 and is connected with the rubber pressing plate 16 through the second pressure sensor 17.

[0027] The limiting device includes a sleeve 18, a limiting plate 19, a connecting rod 20, a spring 21, a pressing switch 22 and a second limiting optical rod 23. The sleeve 18 is installed on the lower part of the outer side surface of the C-shaped frame 14. The limiting plate 19 is located in the lower part inside the C-shaped frame 14. The connecting rod 20 is installed on the outer side end surface of the limiting plate 19. The connecting rod 20 is inserted into the inside of the sleeve 18 and is connected with the inner plane of the sleeve 18 through the spring 21. The pressing switch 22 is installed on the inner plane of the sleeve 18. A set of second limiting optical rods 23 are respectively arranged on the upper and lower parts of the outer side surface of the limiting plate 19.

[0028] The left part of the upper end surface of the C-shaped frame 14 is set as a rounded corner.

[0029] The workpiece transported on the conveying roller 2 is intercepted by the interception device, and the spatial position of the workpiece is adjusted. The position of the workpiece is adjusted by the adjustment device in cooperation with the limiting device, and the workpiece is supported and fixed by the fixing device. The workpiece that has completed the detection is transported out of the detection area by the fixing device, improving the practicability of the device.

[0030] The driving motor 10, the first electric cylinder 5, the fixing electric cylinder 15, the second pressure sensor 17, the first pressure sensor 8, the pressing switch 22 and the lifting electric cylinder 13 of a mechanical precision detection auxiliary fixture of the present utility model are purchased on the market. Those skilled in the art only need to install and operate according to the attached operation manual, without the need for creative labor of those skilled in the art.

[0031] The above are only the preferred embodiments of the present utility model. It should be noted that for those of ordinary skill in the art in this technical field, without departing from the technical principle of the present utility model, several improvements and modifications can be made, and these improvements and modifications should also be regarded as the protection scope of the present utility model.

Claims

1. A mechanical precision detection auxiliary fixture, comprising a conveying frame (1), conveying rollers (2) and a driving device (3), wherein a plurality of conveying rollers (2) are horizontally mounted on the conveying frame (1), a driving device (3) is mounted on the front end surface of the conveying frame (1), and a plurality of output ends of the driving device (3) are respectively connected to the plurality of conveying rollers (2); characterized in that: It also comprises an intercepting device, an adjusting device, a fixing device and a limiting device, wherein the intercepting device is mounted on the left side of the conveying frame (1), the adjusting device is mounted on the bottom of the conveying frame (1) and is located on the right side of the intercepting device, the fixing device is mounted on the adjusting device, and the limiting device is mounted on the fixing device.

2. A mechanical precision detection auxiliary fixture as claimed in claim 1, characterized in that: The interception device comprises a mounting plate (4), a first electric cylinder (5), an interception plate (6), a first position-limiting optical rod (7) and a first pressure sensor (8). The mounting plate (4) is mounted on the upper part of the conveying frame (1). The mounting plate (4) is located on the left side of the plurality of conveying rollers (2). A group of first electric cylinders (5) are mounted on the front and rear of the left end face of the mounting plate (4). The movable end of the first electric cylinder (5) passes through the left end face of the mounting plate (4) and extends to the right side of the mounting plate (4) and is connected to a group of interception plates (6) through the first pressure sensor (8). The left end face of the interception plate (6) is connected to a plurality of first position-limiting optical rods (7). The plurality of first position-limiting optical rods (7) all pass through the mounting plate (4) and extend to the left side of the mounting plate (4).

3. A mechanical precision detection auxiliary fixture as claimed in claim 1, characterized in that: The adjusting device comprises an adjusting box (9), a driving motor (10), a bidirectional lead screw (11) and an adjusting platform (12). The adjusting box (9) is installed on the bottom end surface of the conveying frame (1). The adjusting box (9) is located below the left multiple groups of conveying rollers (2). The adjusting box (9) is provided with multiple groups of sliding limit grooves. Each group of sliding limit grooves is located below the gap between two adjacent groups of conveying rollers (2). Each group of sliding limit grooves is respectively installed with a group of bidirectional lead screws (11) and two groups of adjusting platforms (12). Both groups of adjusting platforms (12) are connected to the bidirectional lead screw (11) through nuts. The two groups of adjusting platforms (12) are symmetrical with respect to the middle position of the bidirectional lead screw (11). Multiple groups of driving motors (10) are installed on the front end surface of the adjusting box (9) at positions corresponding to the multiple groups of sliding limit grooves. The output ends of the multiple groups of driving motors (10) are respectively connected to the multiple groups of bidirectional lead screws (11).

4. A mechanical precision detection auxiliary fixture as claimed in claim 3, characterized in that: The fixing device comprises a lifting electric cylinder (13), a C-shaped frame (14), a fixing electric cylinder (15), a rubber pressure plate (16) and a second pressure sensor (17); the lifting electric cylinder (13) is installed on the upper end surface of the adjustment platform (12); the C-shaped frame (14) is connected to the movable end of the lifting electric cylinder (13); the C-shaped frame (14) can be moved to the upper side of the conveying roller (2); the fixing electric cylinder (15) is installed on the upper end surface of the C-shaped frame (14); the movable end of the fixing electric cylinder (15) passes through the upper part of the C-shaped frame (14) and extends to the middle part of the C-shaped frame (14) and is connected to the rubber pressure plate (16) through the second pressure sensor (17).

5. A mechanical precision detection auxiliary fixture as claimed in claim 4, characterized in that: The limiting device comprises a sleeve (18), a limiting plate (19), a connecting rod (20), a spring (21), a push switch (22) and a second limiting light rod (23); the sleeve (18) is installed at the lower part of the outer side surface of the C-shaped frame (14); the limiting plate (19) is located at the lower part of the inner part of the C-shaped frame (14); a connecting rod (20) is installed on the outer end surface of the limiting plate (19); the connecting rod (20) is inserted into the sleeve (18) and connected to the inner plane of the sleeve (18) through the spring (21); a push switch (22) is installed on the inner plane of the sleeve (18); and a group of second limiting light rods (23) are respectively arranged on the upper and lower outer sides of the limiting plate (19).

6. A mechanical precision detection auxiliary fixture as claimed in claim 5, characterized in that: The left portion of the upper end surface of the C-shaped frame (14) is arranged as a rounded corner.

7. A mechanical precision detection auxiliary fixture as claimed in claim 6, characterized in that: A group of grooves are respectively arranged at the front and rear of the left rounded corner area of ​​the C-shaped frame (14), and a rubber wheel (24) is installed in the groove. The top end surface of the rubber wheel (24) is lower than the upper end surface of the C-shaped frame (14).

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