Spring seat blind hole machining device

Abstract

The utility model discloses a spring seat blind hole machining device which comprises a machining seat, an adjusting transverse frame is installed on the machining seat in a sliding mode, an electric spark machine head is connected to the front face of the adjusting transverse frame in a sliding mode, an installation block is fixedly connected to the front face of the electric spark machine head, a through hole is formed in the installation block, and a connecting rod is installed in the through hole in a sliding mode. A connecting block is fixedly connected to the lower end of the connecting rod, a T-shaped sliding groove is formed in the lower portion of the connecting block, a T-shaped sliding block is slidably installed in the T-shaped sliding groove, and a limiting plate is fixedly connected to the lower portion of the T-shaped sliding block. After electrode drill bits with different diameters are replaced, a second adjusting screw rod is rotated to drive a T-shaped sliding block to move, the T-shaped sliding block moves to drive a limiting plate to move, then the distance between the rear end of the limiting plate and the electrode drill bits is adjusted, the position of the limiting plate is adjusted, and interference between the limiting plate and the electrode drill bits is avoided; therefore, the limiting plate is effectively prevented from influencing normal drilling of the electrode drill bit.

Description

Technical Field

[0001] The utility model relates to a processing device, in particular to a spring seat blind hole processing device. Background Art

[0002] A blind hole is a hole that connects the surface layer and the inner layer but does not pass through the entire board. The spring seat is a part used to support and position the spring. The spring seat is generally provided with a disc-shaped base with a spring positioning column in the middle of the base. Multiple blind holes are evenly arranged on the end face of the spring seat. The blind holes are used to install other parts.

[0003] For example, a spring seat blind hole processing device disclosed in Chinese patent publication number CN217666957U can perform matrix blind hole processing on the spring seat, effectively control the depth of the blind hole, and improve the processing quality; it includes a chuck, a slide and an EDM machine head; it also includes a workbench, a lifting turntable, a limit seat, a limit rod, a limit plate, and a moving mechanism. The lifting turntable is installed in the middle of the workbench, the chuck is installed on the lifting turntable, the chuck and the lifting turntable are arranged concentrically, the moving mechanism is installed on the workbench, a transverse beam is provided on the moving mechanism, the slide is installed on the transverse beam, the EDM machine head is installed on the front side wall of the slide, the limit seat is installed on the lower part of the side wall of the EDM machine head, the upper end of the limit rod is connected to the limit seat, and two limit plates are horizontally installed at the lower end of the limit rod, one end of the two limit plates is located on both sides of the electrode of the EDM machine head, and a certain distance is set between the lower end surfaces of the two limit plates and the lower end of the electrode;

[0004] Some problems were found during use of the above-mentioned existing spring seat blind hole processing device. First, a limit plate was used to contact the spring seat to control the depth of the electrode drilling. However, when the spring seat was not finely processed, foreign matter adhered to the spring seat, causing unevenness. The limit plate contacted the protruding foreign matter, which caused the drilling depth to be affected by the flatness. Secondly, the limit plate was close to the electrode. When a larger drill bit needed to be replaced, the limit plate would interfere with the electrode, affecting the problem of replacing the electrode to process blind holes of different sizes. Utility Model Content

[0005] The purpose of the utility model is to provide a spring seat blind hole processing device to solve the existing problems raised in the above background technology.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a spring seat blind hole processing device, comprising a processing seat, an adjusting cross frame slidably installed on the processing seat, an electric spark machine head slidably connected to the front of the adjusting cross frame, a mounting block fixedly connected to the front of the electric spark machine head, a through hole provided in the mounting block, a connecting rod slidably installed in the through hole, a connecting block fixedly connected to the lower end of the connecting rod, a T-shaped groove provided under the connecting block, a T-shaped slider slidably installed in the T-shaped groove, a limiting plate fixedly connected to the bottom of the T-shaped slider, a contact head fixedly connected to the bottom of the limiting plate near the rear end edge, a chuck fixedly connected to the bottom of the electric spark machine head, and an electrode drill bit fixedly connected in the chuck.

[0007] Preferably, a connecting slider is fixedly connected to the back of the EDM machine head, the connecting slider is slidably engaged with the adjusting cross frame, a limiting protrusion is fixedly connected to the inner wall of the through hole, a limiting groove is provided on the outer wall of the connecting rod, and the limiting groove is slidably engaged with the limiting protrusion.

[0008] Preferably, a limiting sliding groove is provided in the connecting rod, two limiting rings are sleeved on the connecting rod, a limiting slider is fixedly connected to the inner wall of the limiting ring, and the limiting slider is slidably matched with the limiting sliding groove.

[0009] Preferably, a first adjusting screw is rotatably installed in the limiting sliding groove, and a threaded through hole is provided in the limiting sliding block, and the threaded through hole is threadably matched with the first adjusting screw.

[0010] Preferably, an L-shaped contact rod is fixedly connected to one side of the lower limit ring, a contact switch is fixedly connected to the front of the EDM machine head, the L-shaped contact rod and the contact switch cooperate with each other, and a return spring is sleeved on the connecting rod.

[0011] Preferably, a mounting groove is provided on the T-shaped sliding block, a second adjusting screw is rotatably installed in the mounting groove, a threaded sleeve is fixed in the T-shaped sliding groove, and the threaded sleeve is threadably matched with the second adjusting screw.

[0012] Compared with the prior art, the beneficial effects of the present invention are:

[0013] 1. After replacing the electrode drill bit with a different diameter, rotating the second adjusting screw can drive the T-shaped slider to move, and the movement of the T-shaped slider can drive the limit plate to move, thereby adjusting the distance between the rear end of the limit plate and the electrode drill bit, adjusting the position of the limit plate, avoiding interference between the limit plate and the electrode drill bit, and effectively preventing the limit plate from affecting the normal drilling processing of the electrode drill bit.

[0014] 2. By setting a contact head fixed at a position near the rear end under the limit plate, the limit plate is replaced by the spring seat. The contact surface between the contact head and the spring seat is smaller, which can minimize the possibility of foreign matter on the spring seat contacting the contact head and reduce the probability of foreign matter affecting the drilling depth. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0016] Figure 2 This is a schematic diagram of the local structure of the EDM machine head of the present invention;

[0017] Figure 3 This is a structural diagram of the electric spark machine head of the utility model;

[0018] Figure 4 This is a half-section view of the connecting rod of the present invention;

[0019] Figure 5 This is a schematic diagram of the limit ring structure of the utility model;

[0020] Figure 6 This is a schematic diagram of the limiting plate structure of the utility model.

[0021] In the figure: 1. Processing seat; 102. Adjusting cross frame; 2. EDM machine head; 201. Connecting slider; 202. Contact switch; 203. Chuck; 204. Electrode drill; 3. Mounting block; 301. Through hole; 302. Limiting protrusion; 4. Connecting rod; 401. Limiting groove; 402. Limiting slide; 403. First adjusting screw; 404. Connecting block; 405. T-type slide; 406. Threaded sleeve; 5. Limiting ring; 501. Limiting slider; 502. Threaded through hole; 6. L-type contact rod; 601. Return spring; 7. Limiting plate; 701. T-type slider; 702. Contact head; 703. Mounting groove; 704. Second adjusting screw. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0023] See also Figure 1-6The utility model provides a technical solution: a spring seat blind hole processing device, including a processing seat 1, an adjusting cross frame 102 is slidably installed on the processing seat 1, the front of the adjusting cross frame 102 is slidably connected to the electric spark machine head 2, the front of the electric spark machine head 2 is fixedly connected to a mounting block 3, a through hole 301 is opened in the mounting block 3, a connecting rod 4 is slidably installed in the through hole 301, the lower end of the connecting rod 4 is fixedly connected to a connecting block 404, a T-shaped slide groove 405 is opened below the connecting block 404, a T-shaped slide block 701 is slidably installed in the T-shaped slide groove 405, a limiting plate 7 is fixedly connected to the bottom of the T-shaped slide block 701, a contact head 702 is fixedly connected to the bottom of the limiting plate 7 near the rear end edge, a chuck 203 is fixedly connected to the bottom of the electric spark machine head 2, and an electrode drill bit 204 is fixedly connected to the chuck 203.

[0024] In this embodiment, the threaded sleeve 406 and the T-shaped slider 701 are slidably matched to each other, and the limit plate 7 is slidably connected to the lower end of the connecting rod 4. The limit plate 7 is located in front of the electrode drill bit 204. The position of the limit plate 7 is adjusted forward and backward, and the distance between the limit plate 7 and the electrode drill bit 204 can be adjusted. After replacing the electrode drill bit 204 with a different diameter, the position of the limit plate 7 can be adjusted to avoid interference between the limit plate 7 and the electrode drill bit 204. Secondly, the contact head 702 fixed at the rear end below the limit plate 7 will replace the limit plate 7 to contact the spring seat, and the limit plate 7 will not be directly attached to the spring seat. The contact head 702 is used to contact the upper surface of the spring seat near the hole punched by the electrode drill bit 204. The contact area between the contact head 702 and the spring seat is small, which can minimize the possibility of foreign matter on the spring seat contacting the contact head 702 and reducing the probability of foreign matter affecting the drilling depth. A clamp, a lifting mechanism and the like are provided above the processing seat 1, which are all relatively mature technologies.

[0025] Among them, in order to achieve the purpose of limiting the connecting rod 4 to move only up and down, this device adopts the following technical solutions: a connecting slider 201 is fixedly connected to the back of the electric spark machine head 2, the connecting slider 201 slides with the adjusting cross frame 102, the inner wall of the through hole 301 is fixedly connected to the limiting protrusion 302, and a limiting groove 401 is provided on the outer wall of the connecting rod 4, the limiting groove 401 slides with the limiting protrusion 302, and a limiting slide groove 402 is provided in the connecting rod 4. Two limiting rings 5 are sleeved on the connecting rod 4, and the inner wall of the limiting ring 5 is fixedly connected to the limiting slider 501, and the limiting slider 501 slides with the limiting slide groove 402.

[0026] The limiting protrusion 302 slides in cooperation with the limiting groove 401 to limit the connecting rod 4 to move only up and down, preventing the connecting rod 4 from rotating and causing the limiting plate 7 to rotate and deviate. The limiting ring 5 is slidably installed on the connecting rod 4 using the limiting slider 501. The upper limiting ring 5 is located on the mounting block 3 and will be stuck above the through hole 301, thereby limiting the height of the connecting rod 4.

[0027] Among them, in order to achieve the purpose of adjusting the position of the limit plate 7, this device adopts the following technical solutions: a first adjusting screw 403 is rotatably installed in the limit slide 402, a threaded through hole 502 is opened in the limit slider 501, and the threaded through hole 502 is threadedly matched with the first adjusting screw 403, an L-shaped contact rod 6 is fixedly connected to one side of the lower limit ring 5, a contact switch 202 is fixedly connected to the front of the EDM machine head 2, the L-shaped contact rod 6 and the contact switch 202 cooperate with each other, a return spring 601 is sleeved on the connecting rod 4, an installation groove 703 is opened on the T-shaped slider 701, and a second adjusting screw 704 is rotatably installed in the installation groove 703, a threaded sleeve 406 is fixedly connected to the T-shaped slide 405, and the threaded sleeve 406 is threadedly matched with the second adjusting screw 704.

[0028] By threading the first adjusting screw 403 with the threaded through hole 502, rotating the first adjusting screw 403 can drive the limit slider 501 to move, and the return spring 601 moves and then drives the L-shaped contact rod 6 to move, and the positions of the two L-shaped contact rods 6 are adjusted synchronously. First, the height of the connecting rod 4 can be changed. Secondly, the distance between the two L-shaped contact rods 6 remains unchanged, and the compression amount of the return spring 601 will not change. The return spring 601 can provide a certain thrust for the lower limit ring 5, and the lower limit ring 5 will drive the connecting rod 4 to move downward. After the head 702 contacts the spring seat, it will push the connecting rod 4 to move upward and compress the return spring 601. The limiting ring 5 will drive the L-shaped contact rod 6 to move upward. The upward movement of the L-shaped contact rod 6 will touch the contact switch 202. The contact switch 202 will generate a signal to stop the clamp on the processing seat 1 from continuing to move upward. The threaded sleeve 406 is threadedly matched with the second adjusting screw 704. Rotating the second adjusting screw 704 can drive the T-shaped slider 701 to move. The movement of the T-shaped slider 701 can drive the limit plate 7 to move, thereby adjusting the distance between the rear end of the limit plate 7 and the electrode drill bit 204.

[0029] The working principle and usage process of the present invention are as follows: when in use, the spring seat to be processed is fixedly clamped on the fixture of the processing seat 1, and then the position of the electric spark machine head 2 is adjusted by using the mounting block 3 so that the electrode drill bit 204 is aligned with the punching position, and then the lifting mechanism is started to drive the spring seat to move up, and the electrode drill bit 204 is used to perform electro-etching and punching processing on the spring seat. When the electrode drill bit 204 reaches the predetermined depth, the contact head 702 will contact the top of the spring seat. At this time, the limit plate 7 will push the connecting rod 4 to move up, and the connecting rod 4 will drive the L-shaped contact rod 6 to move up through the limit ring 5. The upward movement of the L-shaped contact rod 6 will press the contact switch 202, and the contact switch 202 will generate a signal to stop the lifting mechanism from continuing to drive the spring seat to move up, and cut off the power to the electrode drill bit 204, thereby completing the processing of the blind hole of the spring seat.

[0030] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A spring seat blind hole processing device, comprising a processing seat (1), an adjusting cross frame (102) being slidably mounted on the processing seat (1), characterized in that: The front side of the adjusting cross frame (102) is slidably connected to the electric spark machine head (2), the front side of the electric spark machine head (2) is fixedly connected to a mounting block (3), a through hole (301) is provided in the mounting block (3), a connecting rod (4) is slidably installed in the through hole (301), a connecting block (404) is fixedly connected to the lower end of the connecting rod (4), a T-shaped slide (405) is provided below the connecting block (404), a T-shaped slide block (701) is slidably installed in the T-shaped slide block (405), a limiting plate (7) is fixedly connected below the T-shaped slide block (701), a contact head (702) is fixedly connected below the limiting plate (7) near the rear end edge, a chuck (203) is fixedly connected below the electric spark machine head (2), and an electrode drill bit (204) is fixedly connected inside the chuck (203).

2. The spring seat blind hole processing device according to claim 1, characterized in that: A connecting slider (201) is fixedly connected to the rear of the electric spark machine head (2), the connecting slider (201) is slidably matched with the adjusting cross frame (102), the inner wall of the through hole (301) is fixedly connected to a limiting protrusion (302), and a limiting groove (401) is provided on the outer wall of the connecting rod (4), and the limiting groove (401) is slidably matched with the limiting protrusion (302).

3. The spring seat blind hole processing device according to claim 1, characterized in that: A limiting sliding groove (402) is provided in the connecting rod (4), two limiting rings (5) are sleeved on the connecting rod (4), the limiting slider (501) is fixed to the inner wall of the limiting ring (5), and the limiting slider (501) is slidably matched with the limiting sliding groove (402).

4. The spring seat blind hole processing device according to claim 3, characterized in that: A first adjusting screw (403) is rotatably installed in the limiting sliding groove (402), and a threaded through hole (502) is provided in the limiting sliding block (501), and the threaded through hole (502) is threadably matched with the first adjusting screw (403).

5. The spring seat blind hole processing device according to claim 3, characterized in that: An L-shaped contact rod (6) is fixedly connected to one side of the lower limiting ring (5), a contact switch (202) is fixedly connected to the front of the electric spark machine head (2), the L-shaped contact rod (6) and the contact switch (202) cooperate with each other, and a return spring (601) is sleeved on the connecting rod (4).

6. The spring seat blind hole processing device according to claim 1, characterized in that: The T-shaped sliding block (701) is provided with a mounting groove (703), a second adjusting screw (704) is rotatably mounted in the mounting groove (703), a threaded sleeve (406) is fixed in the T-shaped sliding groove (405), and the threaded sleeve (406) is threadedly matched with the second adjusting screw (704).

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