CN220575505U - Automatic grinder for probe card - Google Patents

Abstract

The utility model discloses an automatic probe card grinding machine, which comprises a frame, a microscope, an operation panel, a probe card fixing clamp, a grinding mechanism and a visual camera, wherein the microscope, the operation panel, the probe card fixing clamp, the grinding mechanism and the visual camera are arranged on the frame; the vision camera is arranged on one side of the probe card fixing clamp through the adjusting mechanism, can be adjusted to a proper position to take a photograph of the probe card needle head for positioning and observe the contact and grinding conditions. The utility model can control the accurate contact and automatic grinding of the grinding table and the probe tip, has the advantages of settable grinding parameters, simple operation, high grinding efficiency and reliable quality control.

Description

Automatic grinder for probe card

Technical Field

The utility model relates to the field of manufacturing of probe card processing equipment, in particular to an automatic grinding machine for a probe card.

Background

The probe card can wear and incline after long-time use, and each probe has different length and needs to be polished. In the prior art, the Chinese utility model with the publication of CN213998807U discloses a needle card needle grinding machine, which mainly adopts a manual needle grinding mode, each probe on a needle card is observed through a microscope, and after the probes needing to be ground are determined, a needle grinding assembly is manually operated to grind. The method is difficult to grasp by relying on abundant experience judgment and operation technology of operators, is complex to operate and has low polishing efficiency.

Disclosure of Invention

The utility model aims to solve the technical problems that the quality control is difficult to grasp, the operation is complicated and the polishing efficiency is low in the traditional manual polishing mode in the prior art by relying on abundant experience judgment and operation technology of operators.

The technical scheme of the utility model is as follows: the probe card automatic grinding machine comprises a frame, a microscope, an operation panel, a probe card fixing clamp, a grinding mechanism and a vision camera, wherein the microscope, the operation panel, the probe card fixing clamp, the grinding mechanism and the vision camera are arranged on the frame, the microscope and the operation panel are all installed on a lifting vertical rod in a lifting mode through rotary joints, the probe card fixing clamp is installed above the grinding mechanism, the grinding mechanism comprises a front-back moving assembly, a left-right moving assembly connected with the front-back moving assembly, a lifting assembly connected with the left-right moving assembly, and a grinding table connected with the lifting assembly, and the probe card can be automatically ground by being matched with the microscope and the grinding table capable of controlling horizontal and lifting motions after being fixed by the probe card fixing clamp; the vision camera is arranged on one side of the probe card fixing clamp through the adjusting mechanism, can be adjusted to a proper position to take a photograph of the probe card needle head for positioning and observe the contact and grinding conditions.

Furthermore, the rotary joint comprises a front end connecting section, a middle connecting section and a rear end connecting section which are sequentially connected in a rotary mode, and the front end connecting section and the rear end connecting section are respectively connected with a microscope or an operation panel and a lifting vertical rod.

Furthermore, the probe card fixing clamp comprises two bearing seats for placing the probe card in a matched mode, and pressing plates which are respectively arranged on the two bearing seats in a turnover mode and used for fixing the probe card, wherein the pressing plates are locked and fixed on the bearing seats through screws.

Further, the back-and-forth moving assembly comprises a back-and-forth moving plate which is driven by a back-and-forth moving cylinder and can be slidably arranged on a back-and-forth guide rail, the left-and-right moving assembly comprises a left-and-right guide rail arranged on the back-and-forth moving plate, a left-and-right moving plate which is driven by a left-and-right moving cylinder and can be slidably arranged on the left-and-right guide rail, the lifting assembly comprises a guide seat arranged on the left-and-right moving plate and a lifting seat which is driven by a lifting cylinder and can be lifted and arranged on the guide seat, and the grinding table is connected with the lifting seat.

Furthermore, the lifting cylinder is arranged on the left moving plate and the right moving plate through the connecting bracket, the output end of the lifting cylinder is connected with the lifting seat, the lifting guide rods and the lifting sliding seats are arranged on two sides of the lifting seat, and the concave guide grooves and the sliding guide assemblies which are respectively matched with the lifting guide rods and the lifting sliding seats are arranged on the guide seats.

Furthermore, the lifting guide rods are arranged on two sides of the lifting seat respectively and are slidably arranged in the inner concave guide groove, the number of the lifting sliding seats is four, the lifting sliding seats are respectively arranged on two sides of the lifting seat in two groups, and each lifting sliding seat is arranged in the sliding guide assembly.

Furthermore, each sliding guide assembly comprises side guide posts arranged on two sides of the lifting slide seat respectively, and a long plate arranged between each side guide post and the lifting slide seat, wherein a plurality of rolling bodies are arranged on the long plate up and down, sliding grooves are formed in the side guide posts and the lifting slide seat respectively, and two ends of each rolling body are arranged in the sliding grooves of the side guide posts and the lifting slide seat respectively.

Further, the adjusting mechanism comprises a transverse moving module, a longitudinal moving module connected with the transverse moving module, and an up-and-down moving module connected with the longitudinal moving module, wherein the vision camera is connected with the up-and-down moving module, each moving module comprises a fixed block, the fixed block is provided with a moving block driven by a screw rod, and the screw rod is connected with an operation round rod in a transmission manner.

Further, an emergency stop button, a buzzer, a shaft selection knob, a multiplying power knob, an electronic hand wheel, an upward adjustment button, a downward adjustment button and a touch display screen are arranged on the operation panel, the shaft selection knob is used for selecting the grinding table to do horizontal circular motion or up-down motion, the multiplying power knob is used for selecting the multiplying power to control the grinding table to move according to different speeds, the electronic hand wheel is used for manually controlling the rotation or the lifting of the grinding table, the upward adjustment button and the downward adjustment button are used for controlling the lifting of the grinding table, and the touch display screen is used for displaying and modifying grinding parameters and controlling the grinding table to move.

Compared with the prior art, the utility model has the following advantages: the grinding machine can be used for quickly mounting and fixing the probe card, is matched with a microscope, an operation panel and a visual camera, controls the accurate contact of the grinding table and the probe tip and automatic grinding, has settable grinding parameters, does not need manual grinding, has more automatic and simpler operation, has high grinding efficiency and is reliable in quality control.

Drawings

FIG. 1 is a perspective view of the present utility model;

FIG. 2 is a perspective view of another view of the present utility model;

FIG. 3 is a schematic view of a specific structure of the grinding mechanism according to the present utility model;

FIG. 4 is a schematic view of a specific structure of the lifting assembly according to the present utility model;

FIG. 5 is a schematic view of the internal structure of the guide holder according to the present utility model;

FIG. 6 is a schematic view of a specific structure of the adjusting mechanism according to the present utility model;

fig. 7 is a schematic view showing a specific structure of the operation panel according to the present utility model.

Wherein: 1. a frame; 2. a microscope; 3. an operation panel; 4. a probe card fixing jig; 4a, a bearing seat; 4b, pressing plate; 5. a grinding mechanism; 51. a back and forth movement assembly; 51a, a back and forth movement cylinder; 51b, front and rear guide rails; 51c, a front-rear moving plate; 52. a left-right moving assembly; 52a, a left-right moving cylinder; 52b, left and right guide rails; 52c, a left-right moving plate; 53. a lifting assembly; 53a, lifting cylinders; 53b, a guide seat; 53c, lifting seats; 53d, connecting the brackets; 54. a grinding table; 6. a vision camera; 7. a rotary joint; 7a, a front end connecting section; 7b, an intermediate connecting section; 7c, a rear end connecting section; 8. lifting vertical rods; 9. lifting guide rods; 10. lifting the sliding seat; 11. a concave guide groove; 12. a sliding guide assembly; 12a, side guide posts; 12b, long plates; 12c, rolling elements; 13. a chute; 14. an adjusting mechanism; 141. a lateral movement module; 142. longitudinally moving the module; 143. a vertical movement module; 15. operating the round rod; 16. an emergency stop button; 17. a buzzer; 18. a shaft selection knob; 19. a magnification knob; 20. an electronic hand wheel; 21. an upward adjustment key; 22. downward adjusting the key; 23. and touching the display screen.

Detailed Description

The following describes specific embodiments of the present utility model with reference to the drawings.

Examples:

the utility model relates to a specific embodiment of an automatic probe card grinder, which mainly comprises a frame 1, a microscope 2, an operation panel 3, a probe card fixing clamp 4, a grinding mechanism 5 and a visual camera 6, wherein the microscope 2, the operation panel 3, the probe card fixing clamp 4, the grinding mechanism 5 and the visual camera 6 are arranged on the frame 1.

Wherein, in connection with fig. 2, the microscope 2 and the operation panel 3 are both installed on the lifting vertical rod 8 in a lifting manner through the rotary joint 7. The rotary joint 7 specifically includes a front end connecting section 7a, a middle connecting section 7b, and a rear end connecting section 7c which are sequentially connected in a rotating manner, and the front end connecting section 7a and the rear end connecting section 7c are further connected with the microscope 2 or the operation panel 3 and the lifting vertical rod 8, respectively. The microscope 2 and the operation panel 3 can be rotated for a certain angle and adjusted for a certain height according to the needs so as to adapt to different operation requirements.

The probe card fixing clamp 4 is installed above the grinding mechanism 5, and the probe card fixing clamp 4 specifically comprises two bearing seats 4a for accommodating the probe card in a matched mode, and pressing plates 4b which are respectively installed on the two bearing seats 4a in a turnover mode and used for fixing the probe card, wherein the pressing plates 4b are locked and fixed on the bearing seats 4a through screws. In specific implementation, referring to fig. 1, a probe card (not shown in fig. 1) is placed between two receiving seats 4a, two pressing plates 4b are used to turn over and press the edge of the probe card on the receiving seats 4a, and finally the pressing plates 4b are locked by screws, so that the probe card is fixed and is located above the grinding mechanism 5.

Referring to fig. 3, the polishing mechanism 5 includes a forward/backward movement unit 51, a left/right movement unit 52 connected to the forward/backward movement unit 51, a lifting unit 53 connected to the left/right movement unit 52, and a polishing table 54 connected to the lifting unit 53. Wherein the back and forth movement assembly 51 includes a back and forth movement plate 51c slidably mounted on a back and forth guide rail 51b driven by a back and forth movement cylinder 51 a; the left-right moving assembly 52 includes a left-right guide rail 52b provided on the front-rear moving plate 51c, and a left-right moving plate 52c slidably mounted on the left-right guide rail 52b driven by a left-right moving cylinder 52 a.

In this embodiment, as shown in fig. 4, the lifting assembly 53 specifically includes a guide seat 53b provided on the left and right moving plate 52c, and a lifting seat 53c installed on the guide seat 53b in a lifting manner driven by a lifting cylinder 53a, and the polishing table 54 is connected to the lifting seat 53 c. The lifting cylinder 53a is mounted on the left and right moving plate 52c through a connecting bracket 53d, the output end of the lifting cylinder 53a is connected with the lifting seat 53c, and the lifting cylinder 53a can drive the lifting seat 53c to move up and down, so as to drive the grinding table 54 to lift.

Further, referring to fig. 4 and 5, both sides of the lifting seat 53c are provided with a lifting guide rod 9 and a lifting slide seat 10, and the guide seat 53b is provided with a concave guide groove 11 and a sliding guide assembly 12 respectively matched with the lifting guide rod 9 and the lifting slide seat 10. Specifically, the lifting guide rods 9 are two, are respectively arranged at two sides of the lifting seat 53c and are slidably arranged in the inner concave guide groove 11, the lifting slide seats 10 are four, are respectively arranged at two sides of the lifting seat 53c, and each lifting slide seat 10 is arranged in the sliding guide assembly 12. In this embodiment, each sliding guide assembly 12 includes side guide posts 12a disposed on two sides of the lifting slide 10, and a long plate 12b disposed between each side guide post 12a and the lifting slide 10, wherein a plurality of rolling elements 12c are disposed on the long plate 12b, sliding grooves 13 are disposed on the side guide posts 12a and the lifting slide 10, and two ends of the rolling elements 12c are disposed in the sliding grooves 13 of the side guide posts 12a and the lifting slide 10. When the lifting seat 53c moves up and down, the two lifting guide rods 9 slide in the concave guide grooves 11 on the two sides respectively, and meanwhile, the four lifting sliding seats 10 slide up and down smoothly under the guidance of the rolling bodies 12c on the two corresponding sides respectively, so that the grinding table 54 can be driven to lift along the vertical direction.

In this embodiment, the vision camera 6 is mounted on one side of the probe card fixing fixture 4 through the adjusting mechanism 14, and can be adjusted to a proper position to take a photograph of the probe card needle for positioning and observe the contact and grinding conditions. Referring to fig. 6, the adjusting mechanism 14 specifically includes a lateral movement module 141, a longitudinal movement module 142 connected to the lateral movement module 141, and an up-and-down movement module 143 connected to the longitudinal movement module 142, and the vision camera 6 is connected to the up-and-down movement module 143. Each moving module comprises a fixed block, a moving block driven by a screw rod is arranged on the fixed block, the screw rod is connected with an operation round rod 15 in a transmission manner, and the moving block can be controlled to move by rotating the operation round rod 15, so that the position of the vision camera 6 is adjusted. The vision camera 6 can be adjusted prior to needle grinding, mainly to see the contact of the needle tip with the grinding table 54 and the condition of needle grinding.

In this embodiment, the operation panel 3 is provided with a scram button 16, a buzzer 17, a shaft selection knob 18, a magnification knob 19, an electronic hand wheel 20, an up adjustment key 21, a down adjustment key 22, and a touch display screen 23, and the specific functions are as follows:

the emergency stop button 16 is pressed when an emergency occurs, and the polishing table 54 is immediately stopped.

The buzzer 17 is used for sounding an alarm to prompt the end of grinding.

The shaft selection knob 18 is used to select the grinding table 54 to move horizontally and circularly or up and down. Specifically, the axis selection knob 18 may select an X-range or a Z-range, and the grinding table 54 may perform a horizontal circular motion (clockwise or counterclockwise rotation) when the X-range is selected, and the grinding table 54 may perform an up-and-down motion when the Z-range is selected.

The magnification knob 19 is used to select the magnification to control the movement of the grinding table 54 at different rates. Specifically, the magnification knob 19 may be selected from X1 (1-fold shown), X10 (10-fold shown), and X100 (100-fold shown).

The electronic handwheel 20 is used to manually control the rotation or elevation of the grinding table 54. When the X gear is selected and the corresponding magnification is selected, the electronic hand wheel 20 is rotated clockwise or counterclockwise and the grinding table 54 is rotated clockwise or counterclockwise at the corresponding rate. When the Z-gear is selected and the corresponding magnification is selected, the electronic hand wheel 20 is rotated clockwise or counterclockwise, the grinding table 54 is raised or lowered at the corresponding rate, and X1, X10, X100 are selected to be raised (or lowered) by 1um, 10um, 100um.

The up-adjustment key 21 and the down-adjustment key 22 are used to control the lifting and lowering of the grinding table 54. When the axis selection knob 18 selects the Z-gear, the functions of the up-adjustment key 21 and the down-adjustment key 22 are equivalent to those of the electronic hand wheel 20.

The touch display screen 23 is used to display and modify the grinding parameters and control the movement of the grinding table 54. Specifically, the touch display screen 23 is provided with a parameter setting and display area for displaying the set polishing parameters, and manually modifying the polishing parameters, for example, "polishing speed", "polishing time", "polishing height", etc. may be set, and "relative position" (relative to the position of the probe card), "absolute position", "polishing remaining time", etc. of the polishing table 54 may also be displayed. The touch display screen 23 is also provided with two touch keys, namely a touch key of "start/stop rotation of the polishing table" and a touch key of "start automatic polishing".

The automatic grinding machine of the utility model specifically works as follows:

1) Mounting the probe card on a probe card fixing clamp 4, adjusting the microscope 2, and positioning the focal point of the microscope 2 at the needle point; then the Z gear is selected by the adjusting shaft selecting knob 18, the electronic hand wheel 20 is rotated clockwise after the needed multiplying power is selected by the multiplying power knob 19, and the grinding table 54 rises according to the corresponding speed until the grinding table 54 is just contacted with the probe card tip and then stops; the relative position (relative to the probe card) and the absolute position of the grinding table 54 are displayed on the touch display screen 23 in real time, and the numerical values of the relative position and the absolute position are the same at the beginning, and when the grinding table 54 just contacts with the probe card tip after the grinding table is adjusted according to the steps, the zero clearing key is clicked to clear the relative position, namely, the grinding height is set to be zero, so that initial preparation is made for grinding.

2) Setting a grinding speed, a grinding time and a grinding height through the touch display screen 23, determining that the grinding table starts rotating, clicking the automatic grinding start, and starting the automatic grinding of the probe card by the equipment; the progress of the polishing was known by observing the changes in the "relative position" and "polishing remaining time".

3) After finishing grinding, the buzzer 17 lights and gives an alarm, and meanwhile, the grinding table 54 automatically descends to the initial position for resetting, so that preparation is made for the next grinding.

The above embodiments are merely for illustrating the technical concept and features of the present utility model, and are not intended to limit the scope of the present utility model to those skilled in the art to understand the present utility model and implement the same. All modifications made according to the spirit of the main technical proposal of the utility model should be covered in the protection scope of the utility model.

Claims (9)

1. An automatic grinder for probe cards, which is characterized in that: the automatic grinding device comprises a frame (1) and a microscope (2), an operation panel (3), a probe card fixing clamp (4), a grinding mechanism (5) and a visual camera (6) which are arranged on the frame (1), wherein the microscope (2) and the operation panel (3) are installed on a lifting vertical rod (8) in a lifting mode through a rotary joint (7), the probe card fixing clamp (4) is installed above the grinding mechanism (5), the grinding mechanism (5) comprises a front-back moving assembly (51), a left-right moving assembly (52) connected with the front-back moving assembly (51), a lifting assembly (53) connected with the left-right moving assembly (52) and a grinding table (54) connected with the lifting assembly (53), and the probe card is fixed by the probe card fixing clamp (4) and then matched with the microscope (2) and the operation panel (3) to control the grinding table (54) capable of controlling horizontal and lifting motions to perform automatic grinding; the vision camera (6) is arranged on one side of the probe card fixing clamp (4) through the adjusting mechanism (14) and can be adjusted to a proper position to take a photograph of the probe card needle head for positioning and observing contact and grinding conditions.

2. The automatic probe card grinder of claim 1, wherein: the rotary joint (7) comprises a front end connecting section (7 a), a middle connecting section (7 b) and a rear end connecting section (7 c) which are sequentially connected in a rotating mode, and the front end connecting section (7 a) and the rear end connecting section (7 c) are further connected with the microscope (2) or the operation panel (3) and the lifting vertical rod (8) respectively.

3. The automatic probe card grinder of claim 1, wherein: the probe card fixing clamp (4) comprises two bearing seats (4 a) for accommodating the probe card in a matched mode, and pressing plates (4 b) which are respectively arranged on the two bearing seats (4 a) in a turnover mode and used for fixing the probe card, and the pressing plates (4 b) are locked and fixed on the bearing seats (4 a) through screws.

4. The automatic probe card grinder of claim 1, wherein: the front-back moving assembly (51) comprises a front-back moving plate (51 c) which is driven by a front-back moving cylinder (51 a) and is slidably mounted on a front-back guide rail (51 b), the left-right moving assembly (52) comprises a left-right guide rail (52 b) which is arranged on the front-back moving plate (51 c), a left-right moving plate (52 c) which is driven by a left-right moving cylinder (52 a) and is slidably mounted on the left-right guide rail (52 b), the lifting assembly (53) comprises a guide seat (53 b) which is arranged on the left-right moving plate (52 c), and a lifting seat (53 c) which is driven by a lifting cylinder (53 a) and is liftable and mounted on the guide seat (53 b), and the grinding table (54) is connected with the lifting seat (53 c).

5. The automatic probe card grinder of claim 4, wherein: the lifting cylinder (53 a) is installed on the left-right moving plate (52 c) through a connecting support (53 d), the output end of the lifting cylinder (53 a) is connected with a lifting seat (53 c), lifting guide rods (9) and lifting sliding seats (10) are arranged on two sides of the lifting seat (53 c), and concave guide grooves (11) and sliding guide assemblies (12) which are matched with the lifting guide rods (9) and the lifting sliding seats (10) are arranged on the guide seat (53 b).

6. The automatic probe card grinder of claim 5, wherein: the lifting guide rods (9) are arranged on two sides of the lifting seat (53 c) respectively and are slidably arranged in the inner concave guide groove (11), the lifting sliding seats (10) are four, two groups of the lifting sliding seats are arranged on two sides of the lifting seat (53 c) respectively, and each lifting sliding seat (10) is arranged in the sliding guide assembly (12).

7. The automatic probe card grinder of claim 6, wherein: every sliding guide subassembly (12) all include locate respectively side guide pillar (12 a) of lift slide (10) both sides, locate long board (12 b) between every side guide pillar (12 a) and lift slide (10), a plurality of rolling elements (12 c) have been arranged from top to bottom to long board (12 b), all be equipped with spout (13) on side guide pillar (12 a) and lift slide (10), the both ends of rolling element (12 c) set up respectively in spout (13) of side guide pillar (12 a) and lift slide (10).

8. The automatic probe card grinder of claim 1, wherein: the adjusting mechanism (14) comprises a transverse moving module (141), a longitudinal moving module (142) connected with the transverse moving module (141), an up-down moving module (143) connected with the longitudinal moving module (142), a visual camera (6) connected with the up-down moving module (143), each moving module comprises a fixed block, a moving block driven by a screw rod is arranged on each fixed block, and the screw rod is connected with an operation round rod (15) in a transmission manner.

9. The automatic probe card grinder of claim 1, wherein: the automatic grinding device is characterized in that an emergency stop button (16), a buzzer (17), a shaft selection knob (18), a multiplying power knob (19), an electronic hand wheel (20), an upward adjustment key (21), a downward adjustment key (22) and a touch display screen (23) are arranged on the operation panel (3), the shaft selection knob (18) is used for selecting a grinding table (54) to do horizontal circular motion or up-down motion, the multiplying power knob (19) is used for selecting multiplying power to control the grinding table (54) to move according to different speeds, the electronic hand wheel (20) is used for manually controlling the rotation or lifting of the grinding table (54), the upward adjustment key (21) and the downward adjustment key (22) are used for controlling the grinding table (54) to lift, and the touch display screen (23) is used for displaying and modifying grinding parameters and controlling the grinding table (54) to move.