Electronic detonator assembly production device

Abstract

The invention provides an electronic detonator assembly production device which comprises a rack and further comprises a clamping unit arranged on the rack and used for clamping and fixing a workpiece to be polished; the polishing unit is arranged on the rack, is matched with the clamping unit and is used for polishing the workpiece to be polished; the positioning unit is arranged between the clamping unit and the grinding unit and can guide and position the grinding unit; the positioning unit comprises a positioning disc, a positioning hole is formed in the positioning disc, and the axis of the positioning hole coincides with the axis of the workpiece to be polished. According to the polishing device, the guiding and positioning effects on the polishing head can be achieved through the positioning disc arranged between the clamping unit and the polishing unit and the positioning holes formed in the positioning disc, the stability and the polishing precision of the polishing head in the polishing operation process are greatly improved, and the polishing efficiency is improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of detonator assembly equipment, in particular to an electronic detonator assembly production device. BACKGROUND

[0002] The electronic detonator is a special detonating device, also known as digital electronic detonator or industrial digital electronic detonator, which controls the detonation process by using an electronic control module, which is placed inside the detonator, and has functions such as detonator delay time control and detonation energy control, and also has a detonator identity information code and a detonation password built-in. The electronic detonator not only greatly improves the delay precision, but also maximizes the reduction of errors caused by the energy demand of the ignition head by controlling the power supply to the ignition head. The electronic detonator automatic assembly production device is usually composed of a series of automatic equipment, which is used to complete the whole process from component assembly to final detection and packaging of the electronic detonator. The electronic detonator automatic assembly production line process includes basic detonator mold changing, chip arranging, foot line arranging, automatic welding, secondary automatic mold arranging, automatic socket coding, three-code integration, mold unloading and packaging, batch assembling, etc.

[0003] Among them, the inner and outer walls of the electronic detonator need to be polished between the chip arranging and the packaging, so that the electronic detonator after packaging can be directly transferred to the next process.

[0004] The traditional polishing mechanism is used to polish the inner wall of the electronic detonator. Since the distance between the polishing rod and the end of the tube is far, and there is no necessary guide and limit, it is easy to cause size tolerance or scratch the inner wall of the tube due to the jumping of the polishing rod during polishing, which is not conducive to the safe and stable assembly of the electronic detonator, and reduces the production quality and production efficiency of the electronic detonator. SUMMARY

[0005] Therefore, the present application provides an electronic detonator assembly production device, which can limit and guide the polishing rod by setting a positioning unit between the polishing unit and the clamping unit, avoid the size tolerance caused by the excessive axial jumping of the polishing rod, and greatly improve the production quality and production efficiency of the electronic detonator.

[0006] To solve the above-mentioned technical problems, the present invention provides an electronic detonator assembly and production device, including a frame, and further including: a clamping unit, disposed on the frame, for clamping and fixing the workpiece to be ground; a grinding unit, disposed on the frame, cooperating with the clamping unit, for grinding the workpiece to be ground; and a positioning unit, disposed between the clamping unit and the grinding unit, for guiding and positioning the grinding unit; the positioning unit includes a positioning plate, on which a positioning hole is formed, the axis of the positioning hole coinciding with the axis of the workpiece to be ground. The present invention can achieve the guiding and positioning function of the grinding head by the positioning plate disposed between the clamping unit and the grinding unit, and the positioning hole formed on the positioning plate, which greatly improves the stability and grinding accuracy of the grinding head during the grinding operation, and improves the grinding efficiency.

[0007] The positioning unit also includes a drive mechanism, which can drive the positioning disk to move to adjust the position of the positioning hole. During the grinding operation, the drive mechanism can drive the positioning disk to move to a position where the axis of the positioning hole coincides with the axis of the workpiece to be ground. This invention can limit the axial runout of the grinding head during the grinding process by driving the positioning disk to move to a position where the positioning hole coincides with the axis of the grinding head and the workpiece to be ground. This achieves precise guidance of the grinding head and greatly improves the accuracy and efficiency of grinding.

[0008] The driving mechanism includes a first driving member, the output shaft end of which is disposed on a positioning disk, and the axis of the output shaft of the driving member coincides with the axis of the positioning disk. The present invention can rotate the positioning disk by rotating the output shaft of the first driving member, thereby enabling convenient and quick adjustment of the position of the positioning hole on the positioning disk.

[0009] The positioning holes are multiple and of different sizes, evenly distributed on the positioning plate. The positioning holes are eccentrically set with respect to the axis of the positioning plate. This invention can achieve convenient and efficient adjustment of the position of multiple different positioning holes while the positioning plate rotates, by combining the effect of the eccentric setting of the positioning holes with the effect of the axis of the output shaft of the drive component coinciding with the axis of the positioning plate. This makes it suitable for guiding and limiting the operation of grinding heads of different diameters, thus enhancing its applicability.

[0010] The clamping unit includes clamping components that can clamp and fix the workpiece to be polished.

[0011] The clamping device is an angled pneumatic finger or a vacuum suction cup mounted on the frame. This invention can achieve a firm clamping and fixing operation of the workpiece to be polished by using the angled pneumatic finger.

[0012] The clamping piece further comprises a first telescopic push rod arranged on the upper portion of the mounting plate, and an output rod end of the first telescopic push rod is provided with a pressing plate.

[0013] A pressing groove matched with the outer sidewall of the workpiece to be polished is formed on the pressing plate, and a protective pad is arranged in the pressing groove.

[0014] The polishing unit comprises a moving driving assembly and a polishing head, the moving driving assembly drives the polishing head to move and rotate, the diameter of the positioning hole is greater than the maximum outer diameter of the polishing head and smaller than the inner diameter of the workpiece to be polished, and the positioning hole can be used for smoothly passing and accurately positioning and guiding the polishing head, so that the runout of the polishing head during rotation can be greatly reduced.

[0015] The moving driving assembly comprises a slide rail arranged on the rack, a sliding block is arranged on the slide rail in a sliding mode, a second telescopic push rod is arranged on the outer side of the sliding block, a fixed end of the second telescopic push rod is arranged on the rack, a second driving member is arranged on the upper portion of the sliding block, an output shaft end of the second driving member is provided with a polishing rod, and the polishing head is arranged on the output shaft end of the polishing rod.

[0016] The first telescopic push rod and the second telescopic push rod are electric push rods or hydraulic push rods.

[0017] The first driving member is a rudder, and the second driving member is a servo motor.

[0018] The rack is further provided with a controller and a photoelectric sensor, the controller is a PLC controller, and the controller is electrically connected with the first telescopic push rod, the second telescopic push rod, the first driving member and the second driving member.

[0019] Compared with the prior art, the present application has at least one of the following beneficial technical effects: 1. The positioning accuracy problem is solved: the positioning unit in the present application drives the positioning disc to rotate by the rudder, so that the axis of the positioning hole is rotated to coincide with the axis of the workpiece, the rotating polishing head is accurately centered with the workpiece after being guided through the positioning hole, the problem of large coaxiality deviation of the traditional equipment is solved, and the polishing precision and efficiency are greatly improved.

[0020] 2. Solve the problem of poor clamping stability: the clamping unit in the application adopts double fixation of the included angle pneumatic finger and the first telescopic push rod, the pneumatic finger provides radial clamping force, the push rod pressing plate provides axial pressing force, and the rubber pad increases friction force, realizing firm and stable clamping and fixing operation of the workpiece to be polished, especially for cylindrical parts, through three-point firm and tight fixing towards the radial direction, it can ensure that the workpiece does not deviate radially and avoid slipping during polishing.

[0021] 3. Solve the problem of low compatibility: the application can quickly switch through the rotation of the output shaft of the rudder machine by setting multiple positioning holes of different sizes on the positioning disc, and can realize the adaptation of the polishing operation of multiple models of electronic detonators without replacing the positioning assembly, solving the problem of time-consuming adjustment of traditional equipment and greatly improving the replacement efficiency.

[0022] 4. Solve the problem of lack of polishing guidance: the diameter of the positioning hole is set to be between the polishing head and the inner diameter of the workpiece, forming a rigid guiding constraint to limit the radial runout of the polishing head and avoid excessive polishing, greatly reducing the size deviation of the port and solving the size tolerance problem.

[0023] 5. Solve the problem of low automation level: the application can realize the whole process automation of workpiece positioning detection, automatic clamping, positioning adjustment, polishing and discharging through the linkage of PLC control system, driving piece and clamping unit, without manual intervention, seamless docking with electronic detonator assembly line, and reducing the risk of manual contact with dangerous goods. BRIEF DESCRIPTION OF DRAWINGS

[0024] Figure 1 It is a structure schematic view of the electronic detonator assembly production device of the application; Figure 2 It is a structure schematic view of the electronic detonator assembly production device of the application without rack; Figure 3 It is a structure schematic view of the electronic detonator assembly production device of the application; Figure 2 Figure 4 It is a structure schematic view of the polishing unit and positioning unit of the electronic detonator assembly production device of the application; Figure 5 It is a structure schematic view of the electronic detonator assembly production device of the application; Figure 4

[0025] ​​Explanation of reference numerals in the attached drawings: 100, frame; 200, clamping unit; 210, clamping component; 211, angled pneumatic finger; 212, first telescopic push rod; 213, pressure plate; 214, clamping groove; 300, grinding unit; 310, moving drive assembly; 311, slide rail; 312, slider; 313, second telescopic push rod; 314, second drive component; 315, grinding rod; 320, grinding head; 400, positioning unit; 410, positioning plate; 411, positioning hole; 420, drive mechanism; 421, first drive component. Detailed Implementation

[0026] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the following will be described in conjunction with the accompanying drawings of the embodiments of the present invention. Figures 1-4 The technical solutions of the embodiments of the present invention will be clearly and completely described herein. Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all of them. All other embodiments obtained by those skilled in the art based on the described embodiments of the present invention are within the scope of protection of the present invention.

[0027] like Figures 1-4 As shown: This embodiment provides an electronic detonator assembly and production device, including a frame 100. The frame 100 is an integral load-bearing structure, welded from Q355B low alloy high-strength steel to ensure that there is no significant deformation during equipment operation; the surface is sprayed with a polyurea anti-corrosion coating, which is wear-resistant and chemically resistant, and adaptable to dust and slightly corrosive gases in the production environment. The frame 100 is equipped with leveling feet at the bottom to compensate for uneven ground and ensure the equipment is level. It also includes: a clamping unit 200, mounted on the frame 100, for clamping and fixing the workpiece to be ground, employing a double clamping method to ensure stability; a grinding unit 300, mounted on the frame 100, cooperating with the clamping unit 200 for grinding the workpiece; and a positioning unit 400, positioned between the clamping unit 200 and the grinding unit 300, for guiding and positioning the grinding unit 300. The positioning unit 400 includes a positioning plate 410 with a positioning hole 411. The axis of the positioning hole 411 coincides with the axis of the workpiece to be ground. The positioning plate 410 is made of Cr12MoV mold steel, hardened, and exhibits excellent wear resistance. Figure 1 As shown, the positioning disk 410 has eight positioning holes 411 evenly distributed around its circumference. The eccentricity between each positioning hole 411 and the axis of the positioning disk 410 increases with the hole diameter, ensuring that positioning holes 411 of different diameters can be aligned with the workpiece axis by rotation. This invention, through the positioning disk 410 positioned between the clamping unit 200 and the grinding unit 300, and the positioning holes 411 on the positioning disk 410, achieves the guiding and positioning function of the grinding head 320, greatly improving the stability and grinding accuracy of the grinding head 320 during the grinding process, and increasing grinding efficiency.

[0028] According to one embodiment of the present application, as shown in Figures 1-4 The positioning unit 400 further comprises a driving mechanism 420, which can drive the positioning disc 410 to move to adjust the position of the positioning hole 411. During the polishing operation, the driving mechanism 420 can drive the positioning disc 410 to move to a position where the axis of the positioning hole 411 coincides with the axis of the workpiece to be polished. The present application can drive the positioning disc 410 to move to a position where the positioning hole 411 coincides with the axis of the polishing head 320 and the workpiece to be polished, thereby limiting the axial jump of the polishing head 320 during the polishing process and accurately guiding the polishing of the polishing head 320, greatly improving the polishing precision and efficiency.

[0029] According to another embodiment of the present application, as shown in Figure 1 and Figure 2 The driving mechanism 420 comprises a first driving member 421, the output shaft end of the first driving member 421 is provided on the positioning disc 410, and the axis of the output shaft of the driving member coincides with the axis of the positioning disc 410. The present application can drive the positioning disc 410 to rotate through the rotation of the output shaft of the first driving member 421, thereby conveniently and quickly adjusting the position of the positioning hole 411 on the positioning disc 410.

[0030] According to another embodiment of the present application, as shown in Figure 1 and Figure 2 The positioning hole 411 has a plurality of different sizes and is uniformly distributed on the positioning disc 410. The plurality of positioning holes 411 are eccentrically arranged with the axis of the positioning disc 410. The present application can conveniently and efficiently adjust the positions of the plurality of different positioning holes 411 while the positioning disc 410 rotates, through the eccentric arrangement of the positioning hole 411 with the axis of the positioning disc 410 and the arrangement of the axis of the output shaft of the driving member coinciding with the axis of the positioning disc 410, so that it can be adapted to the guiding and limiting operation of the polishing head 320 with different diameters, and has stronger applicability.

[0031] The clamping unit 200 comprises a clamping member 210, which can clamp and fix the workpiece to be polished.

[0032] According to another embodiment of the present application, as shown in Figure 1 and Figure 2 The clamping member 210 is a clamping angle pneumatic finger 211 or a vacuum chuck provided on the rack 100, as shown in Figure 1As shown, the clamping component 210 is an angled pneumatic finger 211, which can be model SMCMHC2-20D. The angle between the two fingers can be adjusted within the range of 0-90° to accommodate cylindrical workpieces. Silicone rubber pads are embedded in the finger tips to increase the coefficient of friction and prevent workpiece slippage. The clamping force is adjusted via a pneumatic valve to meet the needs of workpieces made of different materials. This invention achieves a secure clamping and fixing of the workpiece to be ground using the angled pneumatic finger 211.

[0033] According to another embodiment of the invention, such as Figure 1 and Figure 2 As shown, the clamping component 210 also includes a first telescopic push rod 212 disposed on the upper part of the mounting plate. A pressure plate 213 is disposed at the output rod end of the first telescopic push rod 212. The first telescopic push rod 212 can be an Airtac DT40 electric push rod. The output rod end is connected to the pressure plate 213 made of 40Cr material, with a chrome-plated surface for rust prevention. The pressure plate 213 has an arc-shaped clamping groove 214 adapted to the outer contour of the workpiece. The arc varies with the diameter of the workpiece. The pressure plate 213 has a clamping groove 214 adapted to the outer wall of the workpiece to be ground. A protective pad is disposed inside the clamping groove 214. The protective pad is made of silicone rubber and is adhered to the inside of the clamping groove 214. The clamping groove 214 achieves a circumferential clamping and fixing operation of the workpiece to be ground, preventing the pressure plate 213 from damaging the workpiece. Axial clamping is achieved by extending and retracting the push rod, which is suitable for non-cylindrical or thin-walled workpieces and avoids deformation caused by radial clamping. The present invention can clamp and fix the workpiece to be polished by extending and retracting the output rod of the first telescopic push rod 212, which brings the pressure plate 213 downward, making the operation more convenient.

[0034] According to another embodiment of the invention, such as Figure 1 and Figure 2 As shown, the grinding unit 300 includes a moving drive assembly 310 and a grinding head 320. The moving drive assembly 310 drives the grinding head 320 to move and rotate. The diameter of the positioning hole 411 is larger than the maximum outer diameter of the grinding head 320 and smaller than the inner diameter of the workpiece to be ground. The present invention can achieve smooth passage and precise positioning and guidance of the grinding head 320 through the positioning hole 411, which can greatly reduce the jumping during its rotation.

[0035] According to another embodiment of the invention, such as Figure 1 and Figure 2As shown, the mobile driving assembly 310 comprises a slide rail 311 arranged on the rack 100, a sliding block 312 is arranged on the slide rail 311, a second telescopic push rod 313 is arranged on the outer side of the sliding block 312, the fixed end of the second telescopic push rod 313 is arranged on the rack 100, the upper part of the sliding block 312 is provided with a second driving part 314, the output shaft end of the second driving part 314 is provided with a polishing rod 315, a polishing head 320 is arranged on the output shaft end of the polishing rod 315, a HIWIN HGH20 linear slide rail 311 is installed on the rack 100, and the sliding block 312 slides along the slide rail 311; a FESTO DGPL-32-150 electric push rod is connected to the outer side of the sliding block 312, and the sliding block 312 is driven to realize axial feeding; a Mitsubishi HC-KFS43 servo motor is fixed on the upper part of the sliding block 312, and the polishing rod 315 is driven to rotate through a shaft coupling; the polishing rod 315 is made of high-speed steel W18Cr4V material, and a cubic boron nitride grinding head 320 is detachably installed at the end; the granularity of the polishing head 320 is 100-150 meshes, wherein 100 meshes are used for rough grinding and deburring, and 150 meshes are used for fine grinding and improving smoothness. The positioning hole 411 has a diameter of 0.5-1mm larger than the maximum outer diameter of the polishing head 320 and a diameter of 0.5-1mm smaller than the inner diameter of the workpiece, forms a rigid guide, limits the radial runout of the polishing head 320 to be less than or equal to 0.005mm, and the second telescopic push rod 313 can push the sliding block 312 along the slide rail 311 with the second driving part 314, the polishing rod 315 and the polishing head 320 under the extension and retraction of the output rod of the second telescopic push rod 313, and simultaneously the output shaft of the second driving part 314 can drive the polishing rod 315 and the polishing head 320 to rotate, thereby realizing efficient polishing of the workpiece to be polished.

[0036] According to another embodiment of the present application, as Figure 1 and Figure 2 As shown, the first telescopic push rod 212 and the second telescopic push rod 313 are both electric push rods or hydraulic push rods, and when the electric push rod is selected, the Yadea DT40 electric push rod can be selected.

[0037] The first driving part 421 is a rudder, which is Futaba S3003 type, and the output shaft is coaxially and rigidly connected with the positioning disc 410, the positioning disc 410 is switched by the rudder to drive the positioning hole 411, so that the axis of the positioning hole 411 coincides with the axis of the workpiece during polishing, and the second driving part 314 is a servo motor, which is Mitsubishi HC-KFS43 servo motor.

[0038] The rack 100 is also provided with a controller and a photoelectric sensor, the controller is a PLC controller, the controller is electrically connected with the first telescopic push rod 212, the second telescopic push rod 313, the first driving part 421 and the second driving part 314, wherein the controller adopts a PLC controller of Siemens S7-1215C, connects each execution element through a PROFINET bus, stores polishing parameters of a workpiece, for example, a rotating speed, a feed amount, a clamping force and the like, and supports one-key calling of parameters.

[0039] The photoelectric sensor can be selected from a PZ-G61N model of Keyence, is installed beside the clamping unit 200, detects whether the workpiece is in place, and triggers clamping and polishing procedures through a positioning signal, so that idling is avoided.

[0040] The man-machine interaction system is equipped with a 10.1-inch touch screen, can display device states in real time, for example, polishing progress and fault alarm, supports manual and automatic mode switching, and is convenient for debugging and emergency operation.

[0041] Working principle and use method of the application: First of all, it needs to be clear that the main assembly operation for polishing the inner hole of a hollow cylindrical part is involved in the application, since the main core improvement point of the application is how to efficiently, stably and accurately polish the inner wall of an electronic detonator, therefore, the polishing improvement part is mainly described in detail, the end cover of the electronic detonator and the filling of the internal medicine can be filled by means of the automatic filling and sealing process equipment in the prior art, and therefore, the application will not be described and limited too much, and the working principle and use method of the application are described in detail by taking the polishing of the inner wall of the electronic detonator as an example, and the working principle is as follows: The working of the device is based on the cooperative mechanism of "accurate positioning - stable clamping - guiding polishing", and the specific principle is as follows: Positioning alignment principle: according to the inner diameter of the workpiece to be polished and the diameter of the polishing head 320, the controller calls preset parameters to drive the steering engine to rotate the positioning disc 410, so that the axis of the matched positioning hole 411 coincides with the workpiece positioning axis of the clamping unit 200, and the photoelectric sensor and the steering engine encoder can be double calibrated to ensure accurate guiding during polishing.

[0042] Workpiece clamping principle: the workpiece is sent to the clamping station by the feeding mechanism, the photoelectric sensor detects the workpiece, the controller triggers the clamping action, the clamping pneumatic finger 211 is closed, the radial clamping of the workpiece is realized, and at the same time, the output rod of the electric push rod is extended, pushing the pressing plate 213 and the pressing groove 214 below the pressing plate 213 to axially press the workpiece through the silica rubber pad, and the double clamping ensures that the workpiece has no displacement during polishing.

[0043] Principle of polishing feed: after clamping is completed, the servo motor drives the polishing head 320 to rotate; the electric push rod is started to push the sliding block 312 to move along the sliding rail 311, so that the polishing head 320 passes through the positioning hole 411 to contact the workpiece port, the positioning hole 411 restricts the radial displacement of the polishing head 320, only allows axial feed, and precise polishing is realized.

[0044] Process linkage principle: the PLC controller receives various unit signals in real time, for example, whether the workpiece is in place, whether clamping is completed, whether the polishing head 320 reaches a preset specified position, and the like, controls actions according to a preset timing: after polishing is completed, the polishing head 320 stops rotating and retreats, the clamping unit 200 is loosened, the workpiece is removed by the feeding mechanism, the positioning disc 410 is reset, and the next workpiece is waited for, so that continuous automatic production is realized.

[0045] The use method is as follows: Device initialization: starting the device, selecting a workpiece to be polished on the touch screen, the controller automatically calling parameters; the steering engine drives the positioning disc 410 to rotate, so that the positioning hole 411 is aligned with the workpiece axis; it is checked whether various moving parts are smooth, and whether the pressure of the pneumatic system reaches normal.

[0046] Automatic polishing process: Feeding: the feeding mechanism (which can be assisted by an automatic feeder or a feeding mechanical arm) sends the workpiece to the positioning groove of the clamping station, and the photoelectric sensor detects the workpiece and sends a signal to the PLC.

[0047] Clamping: the PLC controls the SMC pneumatic finger to close, so that the workpiece is clamped in the radial direction, and at the same time, the output rod of the electric push rod is extended, the workpiece is pressed in the axial direction by the pressing plate 213, and double fixing is completed.

[0048] Polishing: the servo motor is started, and the polishing head 320 rotates; the electric push rod is started to push the sliding block 312 to move with the servo motor and the polishing head 320, the polishing head 320 passes through the positioning hole 411 to contact the workpiece port, and polishing is performed according to the set feed amount.

[0049] Discharging: after polishing is completed, the polishing head 320 stops rotating and retreats, the clamping unit 200 is loosened, the feeding mechanism moves the workpiece to a detection process, the device is reset, and the next workpiece is waited for.

[0050] Change operation: other diameters and other materials are replaced, for example, when an aluminum alloy shell is selected, the corresponding model is selected on the touch screen, the controller is automatically switched to the positioning hole 411 of the set diameter, the clamping force and the polishing speed are adjusted, mechanical adjustment is not required, and efficient change operation can be realized.

[0051] Abnormality treatment: if the workpiece is not in place alarm, check whether the feeding mechanism is blocked; if the polishing head 320 is stuck, the device automatically stops and displays the fault position, checks whether there is foreign matter in the positioning hole 411 or whether the polishing head 320 is worn, and resets and restarts through the touch screen after replacement.

[0052] The present application can limit and guide the polishing rod 315 through the positioning unit 400 arranged between the polishing unit 300 and the clamping unit 200, avoid the case that the polishing size is out of tolerance due to excessive axial jumping of the polishing rod 315, and greatly improve the production quality and production efficiency of the electronic detonator.

[0053] In addition, it should be noted that in the description of the present application, unless otherwise explicitly specified and limited, the terms "mounting", "connection" and "connection" should be understood broadly, for example, it can be fixed connection, or detachable connection, or integral connection; it can be mechanical connection, or electrical connection; it can be directly connected, or indirectly connected through an intermediate medium, or the communication inside two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0054] The above is the preferred embodiment of the present application, it should be pointed out that for ordinary skilled in the art, without departing from the principles of the present application, a number of improvements and refinements can also be made, these improvements and refinements should also be considered as the protection scope of the present application.

Claims

1. An electronic detonator assembly and production apparatus, comprising a frame (100), characterized in that, Also includes: A clamping unit (200) is mounted on the frame (100) and is used to clamp and fix the workpiece to be polished. The grinding unit (300) is mounted on the frame (100) and cooperates with the clamping unit (200) for grinding the workpiece to be ground. The positioning unit (400) is disposed between the clamping unit (200) and the polishing unit (300) and can guide and position the polishing unit (300); The positioning unit (400) includes a positioning disk (410), on which a positioning hole (411) is provided, and the axis of the positioning hole (411) coincides with the axis of the workpiece to be polished.

2. The electronic detonator assembly and production apparatus as described in claim 1, characterized in that: The positioning unit (400) further includes a driving mechanism (420), which can drive the positioning disk (410) to move to adjust the position of the positioning hole (411). During the grinding operation, the driving mechanism (420) can drive the positioning disk (410) to move to a position where the axis of the positioning hole (411) coincides with the axis of the workpiece to be ground.

3. The electronic detonator assembly and production apparatus as described in claim 2, characterized in that: The drive mechanism (420) includes a first drive member (421), the output shaft end of the first drive member (421) is disposed on a positioning disk (410), and the axis of the output shaft of the drive member coincides with the axis of the positioning disk (410).

4. The electronic detonator assembly and production apparatus as described in claim 3, characterized in that: There are multiple positioning holes (411) of varying sizes, which are evenly distributed on the positioning disk (410). The multiple positioning holes (411) are eccentrically positioned relative to the axis of the positioning disk (410).

5. The electronic detonator assembly and production apparatus as described in claim 1, characterized in that: The clamping unit (200) includes a clamping member (210) which can clamp and fix the workpiece to be polished.

6. The electronic detonator assembly and production apparatus as described in claim 5, characterized in that: The clamping component (210) is an angled pneumatic finger (211) or a vacuum suction cup mounted on the frame (100).

7. The electronic detonator assembly and production apparatus as described in claim 5, characterized in that: The clamping member (210) also includes a first telescopic push rod (212) disposed on the upper part of the mounting plate, and a pressure plate (213) is provided at the output rod end of the first telescopic push rod (212).

8. The electronic detonator assembly and production apparatus as described in claim 7, characterized in that: The pressure plate (213) is provided with a clamping groove (214) that is adapted to the outer side wall of the workpiece to be polished, and a protective pad is provided inside the clamping groove (214).

9. The electronic detonator assembly and production apparatus as described in claim 1, characterized in that: The grinding unit (300) includes a moving drive assembly (310) and a grinding head (320). The moving drive assembly (310) drives the grinding head (320) to move and rotate. The diameter of the positioning hole (411) is greater than the maximum outer diameter of the grinding head (320) and smaller than the inner diameter of the workpiece to be ground.

10. The electronic detonator assembly and production apparatus as described in claim 9, characterized in that: The mobile drive assembly (310) includes a slide rail (311) mounted on a frame (100), a slider (312) slidably mounted on the slide rail (311), a second telescopic push rod (313) mounted on the outer side of the slider (312), the fixed end of the second telescopic push rod (313) mounted on the frame (100), a second drive member (314) mounted on the upper part of the slider (312), a grinding rod (315) mounted on the output shaft end of the second drive member (314), and a grinding head (320) mounted on the output shaft end of the grinding rod (315).

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