A valve seat batch drilling positioning device

Abstract

A valve seat batch drilling positioning device includes an upper positioning seat and a lower fixed seat, wherein the lower fixed seat is installed below the upper positioning seat, and a square hole is provided on the upper positioning seat, through which a first valve shaft extends out of the upper end face of the upper positioning seat, so as to facilitate drilling of the end face of the first valve shaft. The valve seat is positioned and fixed on the drilling positioning device by arranging a slider on the upper positioning seat, so that the spacing between adjacent valve seats is kept consistent, so as to facilitate drilling of multiple valve seats by automated equipment, thereby improving the drilling efficiency. By arranging multiple lifting mechanisms, valve seats at different positions are abutted against the lower end face of the upper positioning seat, and the lifting height of each lifting mechanism can be adaptively changed according to the thickness of the boss, so as to ensure that different valve seats are abutted against the lower end face of the upper positioning seat.

Description

Technical Field

[0001] The invention belongs to the technical field of positioning devices, and in particular relates to a valve seat batch drilling positioning device. Background Art

[0002] In order to meet the application requirements of the valve seat, a drilling tool is required to drill holes on the upper end of the valve seat. In order to improve the efficiency of valve seat drilling, multiple valve seats are clamped and positioned by a fixture, so that multiple valve seats can be quickly drilled at the same time. However, due to dimensional deviations in the valve seat production process, when the fixture clamps multiple valve seats at the same time, the thickness of the bosses of some valve seats is inconsistent, and the valve seats with thin bosses may not be clamped tightly. During the drilling process, the unclamped valve seats are prone to shaking, resulting in inaccurate drilling, and may also damage the valve seats, resulting in defective products.

[0003] The invention with application number 202310829222.3 discloses a fully automatic clamping assembly for batch valve seat drilling, which is used to solve the problem that the clamping assembly cannot tighten the valve seat due to inconsistent sizes of the valve seat boss. However, the disadvantage of the above-mentioned clamping assembly is that a through hole is provided on the clamping assembly for accommodating the upper and lower columnar structures of the valve seat boss, and there is a gap between the valve seat and the through hole, resulting in an unstable position between the valve seat and the clamping assembly, resulting in inconsistent spacing between adjacent valve seats, and multiple valve seats cannot be drilled through automated equipment. Summary of the invention

[0004] In view of the above shortcomings, the technical problem to be solved by the present invention is to provide a valve seat batch drilling and positioning device for positioning the valve seats, ensuring that the spacing between the valve seats fixed on the drilling and positioning device is consistent, thereby facilitating automated processing equipment to drill holes in the valve seats.

[0005] In order to solve the above technical problems, the technical solution adopted by the present invention is:

[0006] A valve seat batch drilling and positioning device, used for clamping and positioning multiple valve seats, includes an upper positioning seat, a slider for clamping the valve seat in the upper positioning seat is slidably installed at the bottom; a lower fixed seat, installed below the upper positioning seat, an adjusting chamber is provided in the lower fixed seat, a plurality of lifting drive channels and a plurality of clamping drive channels are provided in the adjusting chamber, a lifting mechanism for abutting the valve seat against the lower end surface of the upper positioning seat is slidably installed in the lifting drive channel, a clamping drive mechanism for driving the slider to move is provided in the clamping drive channel, a mechanism driving member for adjusting the volume of the adjusting chamber is slidably installed in the lower fixed seat, the volume of the adjusting chamber is compressed by the mechanism driving member so that the lifting mechanism and the clamping drive mechanism extend out of the upper positioning seat, so that the valve seat is positioned and fixed in the upper positioning seat; a damping block is arranged in the adjusting chamber, and the two ends of the damping block are respectively connected to the lifting mechanism and the inner wall of the adjusting chamber.

[0007] As a preferred solution of the present invention, the clamping drive channel and the lifting drive channel are connected through a connecting channel, and a certain gap is provided between the connecting channel and the bottom of the lifting drive channel. When the lifting mechanism is lifted, the connecting channel is connected to the lifting drive channel.

[0008] As a preferred solution of the present invention, the lifting mechanism includes a lifting piston and a support member installed on the lifting piston, the lifting piston is slidably installed in the lifting drive channel, the support member is installed on the lifting piston, and the support member abuts against the lower end surface of the valve seat.

[0009] As a preferred solution of the present invention, the support member includes a plurality of support columns, and the support columns are slidably mounted on the lifting piston.

[0010] As a preferred solution of the present invention, the clamping drive mechanism includes a clamping piston and a clamping block mounted on the clamping piston, the clamping piston is slidably mounted in the clamping drive channel, and the clamping block is adapted to the slider.

[0011] As a preferred solution of the present invention, a clamping spring is provided between the clamping piston and the clamping drive channel, and the clamping block is driven to retract by the clamping spring.

[0012] As a preferred solution of the present invention, a guide slope is provided on the slide block, and the clamping drive mechanism is adapted to the guide slope.

[0013] As a preferred solution of the present invention, a V-shaped positioning groove is provided in the upper positioning seat, and a V-shaped fixing groove matched with the V-shaped positioning groove is provided on the slider, and the valve seat is positioned and fixed by the V-shaped positioning groove and the V-shaped fixing groove.

[0014] As a preferred solution of the present invention, the mechanism driving member includes a driving slider and a driving rod connected to the driving slider. An adjustment channel is provided in the adjustment cavity. The driving slider is slidably installed in the adjustment channel. The driving rod passes through the lower fixed seat and the upper positioning seat, and the driving rod extends to above the upper positioning seat. An adjustment member for adjusting the position of the driving rod is provided on the driving rod.

[0015] As a preferred solution of the present invention, a guide column is installed on the lower fixing seat, and a connecting hole is provided on the upper positioning seat, and the guide column and the connecting hole are detachably connected.

[0016] The beneficial effects of the present invention are as follows: (1) the valve seat is positioned and fixed on the punching positioning device by a slider, ensuring that the spacing between adjacent valve seats remains consistent, thereby facilitating the punching of multiple valve seats by automated equipment and improving the punching efficiency.

[0017] (2) The valve seats at different positions are abutted against the lower end surface of the upper positioning seat by multiple lifting mechanisms. The lifting height of each lifting mechanism can be adaptively changed according to the thickness of the boss, thereby ensuring that different valve seats are abutted against the lower end surface of the upper positioning seat.

[0018] (3) By setting the damping block, the rigidity of the device during drilling is improved to prevent the workpiece from shaking during the drilling process. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a structural schematic diagram of the device.

[0020] Figure 2 It is a schematic diagram of the structure of the device after it is rotated to a certain angle.

[0021] Figure 3 It is a half-section schematic diagram of the device located at the mechanism driving part.

[0022] Figure 4 It is a half-section schematic diagram of the device for fixing the valve seat in position.

[0023] Figure 5 This is a partial enlarged view of point A.

[0024] Figure 6 It is a schematic diagram of the structure of the device after the upper positioning seat is hidden.

[0025] Figure 7 It is a structural schematic diagram of the lifting mechanism 5.

[0026] Figure 8 It is a schematic diagram of the structure of the upper positioning seat when viewed from above.

[0027] Figure markings: valve seat 1, boss 1-1, first valve shaft 1-2, second valve shaft 1-3, upper positioning seat 2, V-shaped positioning groove 2-1, connecting hole 2-2, square hole 2-3, slide groove 2-4, fixing foot 2-5, slider 3, guide slope 3-1, V-shaped fixing groove 3-2, lower fixing seat 4, adjusting chamber 4-1, lifting drive channel 4-2, clamping drive channel 4-3, connecting channel 4-4, adjusting channel 4-5, lifting mechanism 5, lifting piston 5-1, support member 5-2, support column 5-3, column 5-4, clamping drive mechanism 6, clamping piston 6-1, clamping block 6-2, connecting column 6-3, clamping spring 6-4, mechanism driving member 7, driving slider 7-1, driving rod 7-2, adjusting member 7-3, damping block 8, guide column 9. DETAILED DESCRIPTION

[0028] The present invention will be further described below in conjunction with the accompanying drawings.

[0029] The punching and positioning device is used to punch holes on the end face of the valve seat 1. The valve seat 1 includes a boss 1-1 and a first valve shaft 1-2 and a second valve shaft 1-3. The first valve shaft 1-2 and the second valve shaft 1-3 are arranged at the upper and lower ends of the boss 1-1 respectively. During the processing of the valve seat 1, the first valve shaft 1-2 and the second valve shaft 1-3 are processed by two turning processes. The axial dimension deviation of the first valve shaft 1-2 and the second valve shaft 1-3 is small, while the thickness deviation of the boss 1-1 is large, resulting in that some clamping devices that support the end faces on both sides of the boss 1-1 cannot tighten all the valve seats 1. The punching and positioning device positions and fixes the valve seat 1 through the circumference of the first valve shaft 1-2 and the upper end face of the boss 1-1, so that the spacing between the valve seats 1 fixed on the valve seat positioning device is consistent, which is convenient for punching multiple valve seats 1 through automated machine tools.

[0030] A valve seat batch drilling and positioning device comprises an upper positioning seat 2 and a lower fixed seat 4. The lower fixed seat 4 is installed below the upper positioning seat 2. A square hole 2-3 is provided on the upper positioning seat 2. The first valve shaft 1-2 extends out of the upper end face of the upper positioning seat 2 through the square hole 2-3, thereby facilitating the drilling of the end face of the first valve shaft 1-2.

[0031] A slide groove 2-4 is provided on the lower end surface of the upper positioning seat 2, and the slide groove 2-4 is connected with the square hole 2-3. A slider 3 is installed in the slide groove 2-4, and the slider 3 is arranged toward the square hole 2-3. The square hole 2-3 is a square structure. A V-shaped positioning groove 2-1 is formed between two adjacent inner walls of the square hole 2-3. The slider 3 is arranged opposite to one of the V-shaped positioning grooves 2-1, and a V-shaped fixing groove 3-2 is formed on the side of the slider 3 facing the V-shaped positioning groove 2-1. The V-shaped fixing groove 3-2 is adapted to the V-shaped positioning groove 2-1, that is, by moving the slider 3, the V-shaped fixing groove 3-2 moves toward the side of the V-shaped positioning groove 2-1, so that the valve seat 1 is positioned and fixed by the V-shaped positioning groove 2-1 and the V-shaped fixing groove 3-2. The valve seat 1 fixed in the device is positioned on the circumference of the first valve shaft 1-2 through the inner wall of the V-shaped positioning groove 2-1, and because the V-shaped positioning groove 2-1 on the device is linearly evenly distributed, it is ensured that the first valve shaft 1-2 is linearly evenly fixed in the punching positioning device, so that the distance of each horizontal or vertical movement of the punching device is consistent, so that it is convenient to punch the valve seat 1 through the automated equipment. At the same time, because the slider 3 can slide, it is convenient to position and fix the valve seat 1 with different shaft diameters in the upper positioning seat 2, thereby improving the use range of the positioning device.

[0032] An adjusting chamber 4-1 is provided in the lower fixed seat 4, and a plurality of lifting drive channels 4-2 and a plurality of clamping drive channels 4-3 are provided in the adjusting chamber 4-1. A lifting mechanism 5 is slidably installed in each lifting drive channel 4-2. The lifting mechanism 5 abuts against the lower end surface of the second valve shaft 1-3 or the lower end surface of the boss 1-1, and is used to lift the valve seat 1 so that the upper end surface of the boss 1-1 abuts against the lower end surface of the upper positioning seat 2. A clamping drive mechanism 6 is provided in each clamping drive channel 4-3. The clamping drive mechanism 6 is adapted to the slider 3. The slider 3 is driven to slide in the upper positioning seat 2 by the clamping drive mechanism 6, so as to fix the first valve shaft 1-2 in the square hole 2-3. The regulating chamber 4-1 is filled with oil, and a mechanism driving part 7 is slidably installed at the end of the regulating chamber 4-1. The mechanism driving part 7 slides to increase or decrease the volume of the regulating chamber 4-1. When the volume of the regulating chamber 4-1 decreases, the oil flows into the lifting driving channel 4-2 and the clamping driving channel 4-3, so that the lifting mechanism 5 and the clamping driving mechanism 6 move toward the outside of the lower fixed seat 4, thereby lifting the valve seat 1 through the lifting mechanism 5, and driving the slider 3 to move through the clamping driving mechanism 6; when the volume of the regulating chamber 4-1 increases, the oil in the lifting driving channel 4-2 and the clamping driving channel 4-3 flows back to the regulating chamber 4-1, so that the lifting mechanism 5 and the clamping driving mechanism 6 retract into the lower fixed seat 4, thereby realizing the separation of the valve seat 1 from the upper positioning seat 2.

[0033] During use, the mechanism driving member 7 moves, the volume of the regulating chamber 4-1 is reduced, and multiple lifting mechanisms 5 are pushed out at the same time. When some of the lifting mechanisms 5 make the valve seat 1 with a thicker boss 1-1 abut against the lower end surface of the upper positioning seat 2, the part of the lifting mechanism 5 stops lifting, and the mechanism driving member 7 continues to move, the volume of the regulating chamber 4-1 is reduced, and the remaining lifting mechanisms 5 continue to lift until all the lifting mechanisms 5 make the valve seat 1 abut against the lower end surface of the upper positioning seat 2, thereby realizing axial fixation of the valve seat 1.

[0034] During the processing, the drill bit will apply an axial force to the valve seat 1, and the valve seat 1 will vibrate during the drilling process. Since the regulating chamber 4-1 is connected to multiple lifting drive channels 4-2 at the same time, when the valve seat 1 is subjected to an axial force, the oil will flow from the lifting drive channel 4-2 at the processing position to the regulating chamber 4-1 or the other lifting drive channels 4-2, causing the lifting mechanism 5 to fail. In order to prevent the lifting mechanism 5 from failing, a damping block 8 is provided at the lower end of the lifting mechanism 5, and the two ends of the damping block 8 are respectively connected to the lifting mechanism 5 and the inner wall of the regulating chamber 4-1. Preferably, the damping block 8 includes a flexible shell and a non-Newtonian fluid, and the non-Newtonian fluid is arranged between the lifting mechanism 5 and the inner wall of the regulating chamber 4-1 through the flexible shell. When the valve seat 1 vibrates, the non-Newtonian fluid hardens and supports the lifting mechanism 5. When the lifting mechanism 5 is raised or lowered, due to the slow lifting speed of the lifting mechanism 5, the non-Newtonian fluid deforms with the deformation of the flexible shell.

[0035] The bottom of the lifting drive channel 4-2 is connected to the regulating chamber 4-1, so that the oil flows into the lifting drive channel 4-2 through the bottom of the lifting drive channel 4-2. The clamping drive channel 4-3 is connected to the lifting drive channel 4-2 through the connecting channel 4-4. A certain gap is provided between the connecting channel 4-4 and the bottom of the lifting drive channel 4-2. Under normal circumstances, the connecting channel 4-4 is located above the lifting mechanism 5. After the lifting mechanism 5 is lifted, the connecting channel 4-4 is connected to the lifting drive channel 4-2, so that the oil flows into the clamping drive channel 4-3 through the connecting channel 4-4, thereby ensuring that when the valve seat 1 is clamped, the action of the lifting mechanism 5 is located at the front end of the action of the clamping drive mechanism 6, ensuring that the valve seat 1 is now abutted against the upper positioning seat 2, and then the valve seat 1 is fixed by the slider 3 to prevent the slider 3 from clamping the valve seat 1 and causing the lifting mechanism 5 to fail to lift the valve seat 1.

[0036] The lifting mechanism 5 includes a lifting piston 5-1 and a support member 5-2 installed on the lifting piston 5-1. The lifting piston 5-1 is slidably installed in the lifting drive channel 4-2, and the support member 5-2 abuts against the lower end surface of the valve seat 1. Preferably, the support member 5-2 abuts against the lower end surface of the boss 1-1.

[0037] The support member 5-2 includes a plurality of support columns 5-3. A slide groove 5-3 is provided on the piston 5-1. The support column 5-3 is slidably installed in the slide groove 5-3. A column 5-4 is provided at the center position of the slide groove 5-3. A spring is provided between the column 5-4 and the support column 5-3, so that the support column 5-3 slides toward the middle of the piston 5-1. By setting the support member 5-2 that can slide relative to the piston 5-1, it is convenient for the support member 5-2 to adapt to the second valve shaft 1-3 of different diameters, thereby facilitating the installation of valve seats 1 of different radial sizes in the device.

[0038] The clamping drive mechanism 6 includes a clamping piston 6-1, a connecting column 6-3 and a clamping block 6-2. The clamping block 6-2 is installed on the clamping piston 6-1 through the connecting column 6-3. The clamping piston 6-1 is slidably installed in the clamping drive channel 4-3. The clamping block 6-2 is adapted to the slider 3, that is, the slider 3 is driven to move by the clamping block 6-2.

[0039] A connecting bevel is provided on the clamping block 6-2, and a guiding bevel 3-1 is provided on the slider 3. The clamping drive mechanism 6 is adapted to the guiding bevel 3-1, that is, the connecting bevel abuts against the guiding bevel 3-1. When the clamping piston 6-1 is lifted, the slider 3 is driven to move through the connecting bevel and the guiding bevel 3-1, so that the first valve shaft 1-2 is clamped on the upper positioning seat 2 through the slider 3.

[0040] A clamping spring 6-4 is provided between the clamping piston 6-1 and the clamping drive channel 4-3. Under normal circumstances, the clamping spring 6-4 is in a compressed state. On the one hand, it is convenient to drive the clamping block 6-2 to retract to the lower fixed seat 4. On the other hand, the setting of the clamping spring 6-4 makes it necessary for a certain force to push the clamping piston 6-1 out. That is, when the oil pressure in the clamping drive channel 4-3 is greater than the force of the clamping spring 6-4, the clamping piston 6-1 can be driven to move relative to it, thereby delaying the movement of the clamping piston 6-1, ensuring that the valve seat 1 is first abutted against the upper positioning seat 2 by the lifting mechanism 5, and then the clamping piston 6-1 drives the clamping block 6-2 to be lifted up, and the clamping block 6-2 drives the slider 3 to clamp the valve seat 1 on the upper positioning seat 2.

[0041] An adjusting channel 4-5 is provided in the adjusting chamber 4-1, and the adjusting channel 4-5 is connected with the adjusting chamber 4-1. The mechanism driving member 7 is slidably installed in the adjusting channel 4-5, and the overall volume of the adjusting chamber 4-1 is adjusted by sliding the mechanism driving member 7 therein.

[0042] The mechanism driving member 7 includes a driving slider 7-1 and a driving rod 7-2 connected to the driving slider 7-1. The driving slider 7-1 is slidably installed in the adjustment channel 4-5. The driving rod 7-2 penetrates the lower fixed seat 4 and the upper positioning seat 2, and the driving rod 7-2 extends to the upper position seat 2. The driving rod 7-2 is provided with an adjustment member 7-3 for adjusting the position of the driving rod 7-2. It should be noted that the driving rod 7-2 can slide relative to the lower fixed seat 4, and there is a sliding seal between the driving rod 7-2 and the adjustment chamber 4-1 to prevent the oil in the adjustment chamber 4-1 from flowing out along the driving rod 7-2.

[0043] As a preferred embodiment, the adjusting member 7-3 is a nut, and the upper end of the driving rod 7-2 is provided with an external thread. When the upper positioning seat 2 and the lower fixed seat 4 are assembled, the upper positioning seat 2 and the lower fixed seat 4 are connected by cooperating with the driving rod 7-2 and the adjusting member 7-3. After the upper positioning seat 2 and the lower fixed seat 4 are connected, the driving slider 7-1 slides in the adjusting channel 4-5 by rotating the adjusting member 7-3, thereby realizing the volume adjustment of the adjusting chamber 4-1 and fixing the valve seat 1 on the upper positioning seat 2.

[0044] A guide column 9 is installed on the lower fixing seat 4, and a connecting hole 2-2 is provided on the upper positioning seat 2. The guide column 9 is detachably connected to the connecting hole 2-2. The assembly of the upper positioning seat 2 and the lower fixing seat 4 is guided by the cooperation of the guide column 8 and the connecting hole 2-2 to ensure the position accuracy of the assembly of the upper positioning seat 2 and the lower fixing seat 4.

[0045] Fixed feet 2 - 5 are provided on both sides of the upper positioning seat 2, and the upper positioning seat 2 is installed on the workpiece table of the machine tool through the fixed feet 2 - 5.

[0046] The above description of the disclosed embodiments enables one skilled in the art to implement or use the present invention. Various modifications to these embodiments will be apparent to one skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention; therefore, the present invention will not be limited to the embodiments shown herein, but rather to the widest scope consistent with the principles and novel features disclosed herein.

[0047] Although this article uses more terms corresponding to the figure marks in the figures, it does not exclude the possibility of using other terms; these terms are used only to more conveniently describe and explain the essence of the present invention; interpreting them as any additional limitations is contrary to the spirit of the present invention.

Claims

1. A valve seat batch drilling and positioning device, used for clamping and positioning a plurality of valve seats (1), characterized in that: It comprises an upper positioning seat (2), and a slider (3) is slidably mounted on the bottom thereof for clamping the valve seat (1) in the upper positioning seat (2); A lower fixed seat (4) is installed below the upper positioning seat (2), an adjusting chamber (4-1) is provided in the lower fixed seat (4), a plurality of lifting drive channels (4-2) and a plurality of clamping drive channels (4-3) are provided in the adjusting chamber (4-1), a lifting mechanism (5) for abutting the valve seat (1) against the lower end surface of the upper positioning seat (2) is slidably installed in the lifting drive channel (4-2), a clamping drive mechanism (6) for driving the slider (3) to move is provided in the clamping drive channel (4-3), a mechanism driving member (7) for adjusting the volume of the adjusting chamber (4-1) is slidably installed in the lower fixed seat (4), the mechanism driving member (7) is used to compress the volume of the adjusting chamber (4-1) so that the lifting mechanism (5) and the clamping drive mechanism (6) extend out of the upper positioning seat (2), and the valve seat (1) is positioned and fixed in the upper positioning seat (2); A damping block (8) is arranged in the adjustment cavity (4-1), and two ends of the damping block (8) are respectively connected to the lifting mechanism (5) and the inner wall of the adjustment cavity (4-1); The clamping drive channel (4-3) and the lifting drive channel (4-2) are connected via a connecting channel (4-4), a certain gap is provided between the connecting channel (4-4) and the bottom of the lifting drive channel (4-2), and when the lifting mechanism (5) is lifted, the connecting channel is connected to the lifting drive channel (4-2).

2. A valve seat batch drilling and positioning device according to claim 1, characterized in that: The lifting mechanism (5) comprises a lifting piston (5-1) and a support member (5-2) mounted on the lifting piston (5-1); the lifting piston (5-1) is slidably mounted in the lifting drive channel (4-2); and the support member (5-2) abuts against the lower end surface of the valve seat (1).

3. A valve seat batch drilling and positioning device according to claim 2, characterized in that: The support member (5-2) comprises a plurality of support columns (5-3), and the support columns (5-3) are slidably mounted on the lifting piston (5-1).

4. A valve seat batch drilling and positioning device according to claim 1, characterized in that: The clamping drive mechanism (6) comprises a clamping piston (6-1) and a clamping block (6-2) mounted on the clamping piston (6-1); the clamping piston (6-1) is slidably mounted in the clamping drive channel (4-3); and the clamping block (6-2) is adapted to fit the slider (3).

5. A valve seat batch drilling and positioning device according to claim 4, characterized in that: A clamping spring (6-4) is provided between the clamping piston (6-1) and the clamping drive channel, and the clamping block (6-2) is driven to retract by the clamping spring (6-4).

6. The valve seat batch drilling and positioning device according to claim 1, characterized in that: The slide block (3) is provided with a guide inclined surface (3-1), and the clamping drive mechanism (6) is adapted to the guide inclined surface (3-1).

7. A valve seat batch drilling and positioning device according to claim 6, characterized in that: The upper positioning seat (2) is provided with a V-shaped positioning groove (2-1), and the sliding block (3) is provided with a V-shaped fixing groove (3-2) adapted to the V-shaped positioning groove (2-1), and the valve seat (1) is positioned and fixed by means of the V-shaped positioning groove (2-1) and the V-shaped fixing groove (3-2).

8. The valve seat batch drilling and positioning device according to claim 1, characterized in that: The mechanism driving member (7) comprises a driving slider (7-1) and a driving rod (7-2) connected to the driving slider (7-1); an adjusting channel (4-5) is provided in the adjusting cavity (4-1); the driving slider (7-1) is slidably mounted in the adjusting channel (4-5); the driving rod (7-2) penetrates the lower fixing seat (4) and the upper positioning seat (2); the driving rod (7-2) extends to above the upper positioning seat (2); and an adjusting member for adjusting the position of the driving rod (7-2) is provided on the driving rod (7-2).

9. The valve seat batch drilling and positioning device according to claim 1, characterized in that: A guide column (9) is mounted on the lower fixing seat (4), a connecting hole (2-2) is provided on the upper positioning seat (2), and the guide column (9) and the connecting hole (2-2) are detachably connected.

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