Automatic bar processing equipment

Abstract

The invention discloses an automatic bar processing equipment, comprising: a machine tool stand, and a lathe spindle installed on the table of the machine tool stand and capable of automatically clamping the bar, a first processing unit, a workpiece transfer mechanism, and a groove drawing tool; a spindle servo motor is fixedly installed on the machine tool stand; the output end of the spindle servo motor is connected to the lathe spindle through a synchronous belt; the groove drawing tool and the lathe spindle are respectively located on both sides of the table of the machine tool stand; the first processing unit for completing the machining of the bar is also distributed on both sides of the clamping end of the lathe spindle; the workpiece transfer mechanism is provided with a gantry frame and a workpiece clamp; the gantry frame is correspondingly connected and fixed to the machine tool stand; the gantry frame is provided with a first translation mechanism; the workpiece clamp is installed on the first translation mechanism; the invention has the advantages of high efficiency, high processing accuracy and high degree of automation.

Description

Technical Field

[0001] The invention relates to automatic bar material processing equipment, belonging to the field of mechanical equipment. Background Art

[0002] There are many products that use bar materials as raw materials, such as the processing of lock cores. At present, the processing procedures of lock cores are bar cutting, key slot pulling, drilling, cutting, etc. Each process is completed on an independent machine, and there is even no assembly line between the processes. It needs to be processed in sections after throttling. This requires the workpiece to be clamped and positioned on several machines for multiple times. Such multiple clamping and positioning will inevitably affect the accuracy of the product, thereby affecting the assembly of the lock core and the lock body, as well as the sensitivity of the lock, and it cannot form automated production, affecting efficiency. In addition, during the processing of the lock core, the accuracy requirement of the pin hole is the highest. Today's processing uses the key slot as the positioning part to drill the pin hole. Since the key slot is designed to facilitate key entry, the accuracy requirement itself is not high, resulting in a greatly affected accuracy of the processed pin hole, causing jamming during the unlocking process. Summary of the invention

[0003] 1. Technical issues to be resolved

[0004] In order to solve the above problems, the present invention proposes an automatic bar processing device.

[0005] (II) Technical solution

[0006] The present invention provides an automatic bar processing equipment, comprising: a machine tool frame, a lathe spindle installed on the machine tool frame table and capable of automatically clamping the bar, a first processing unit, a workpiece transfer mechanism, and a slotting tool; a spindle servo motor is fixedly installed on the machine tool frame; the output end of the spindle servo motor is connected to the lathe spindle through a synchronous belt to drive the lathe spindle to rotate; the slotting tool and the lathe spindle are respectively located on both sides of the machine tool frame table; the first processing unit for completing the machining of the bar is also distributed on both sides of the clamping end of the lathe spindle; the workpiece transfer mechanism is provided with a gantry frame and a workpiece fixture; the gantry frame is correspondingly connected and fixed to the machine tool frame; the gantry frame is provided with a first translation mechanism; the workpiece fixture is installed on the first translation mechanism, and is driven by the first translation mechanism to reciprocate between the slotting tool and the lathe spindle.

[0007] Furthermore, the first processing unit includes: a three-axis moving mechanism, a first drilling and milling head, a turning tool, a first cutting head, and a second translation mechanism; the three-axis moving mechanism and the second translation mechanism are respectively distributed and installed on the table of the machine tool table on both sides of the lathe spindle; the three-axis moving mechanism is composed of three groups of servo modules connected to each other; a turning tool and at least one first drilling and milling head are installed in the middle of the three-axis moving mechanism; the second translation mechanism is installed with a first cutting head; the first cutting head is provided with a first manually adjustable slide; and it is correspondingly connected and fixed with the second translation mechanism.

[0008] Furthermore, a second processing unit is installed on the table top of the machine tool stand; the second processing unit includes: a third translation mechanism and a fourth translation mechanism, a second drilling and milling head, and a second cutting head correspondingly connected to the table top of the machine tool stand; the second drilling and milling head is installed on the third translation mechanism; the second cutting head is installed on the fourth translation mechanism; the second drilling and milling head is provided with a second manual adjustment slide, which is correspondingly connected and fixed to the third translation mechanism; the second cutting head is provided with a third manual adjustment slide; which is correspondingly connected and fixed to the fourth translation mechanism.

[0009] Furthermore, the workpiece fixture consists of two parts: a rotating component and a clamping component; the rotating component includes: a mounting frame, a rotating shaft, and a pushing element corresponding to the first translation mechanism connected and fixed; the mounting frame is provided with a hollow portion, and the rotating shaft is connected to the rotating shaft through a bearing vertical axis; the top end surface of the rotating shaft is correspondingly connected to the clamping component; a gear is installed and fixed on the middle section of the rotating shaft, which is correspondingly located in the hollow portion of the mounting frame; the pushing element is installed and fixed on the mounting frame, and a rack is connected to its output end; the rack corresponds to the meshing gear; a supporting wheel is installed on the mounting frame, corresponding to the limiting supporting rack; two limiting supporting columns for limiting the rotation angle of the rotating shaft are also installed and fixed on the mounting frame; a limiting beam is installed horizontally through the upper half of the rotating shaft, corresponding to the supporting limiting column.

[0010] Furthermore, the clamping component includes: a connecting bracket, a clamping cylinder, and a clamping block; the connecting bracket is connected and fixed to the top end surface of the rotating shaft; the connecting bracket is provided with a workpiece cavity; the connecting bracket is also fixedly mounted with a clamping cylinder; the pushing end of the clamping cylinder is connected and fixed with a clamping block; the clamping block enters and exits the workpiece cavity to clamp the workpiece.

[0011] Furthermore, the side wall of the workpiece cavity is provided with an avoidance notch for facilitating the grooving process.

[0012] Furthermore, a plurality of positioning bosses for positioning the workpiece are provided on the workpiece pressing surface of the pressing block.

[0013] Furthermore, the first translation mechanism, the second translation mechanism, the third translation mechanism and the fourth translation mechanism have the same structure and principle, and all adopt servo modules.

[0014] Furthermore, a discharging mechanism and a control box are installed and connected on the machine tool frame; the discharging mechanism consists of a discharging bin rail and a material return rod; the discharging bin rail is directly connected and fixed to the machine tool frame; the material return rod is connected and fixed to the machine tool frame through a bracket; the material return rod is located directly above the discharging bin rail.

[0015] (III) Beneficial effects

[0016] The present invention has the following beneficial effects:

[0017] The present invention proposes an automatic bar processing equipment, which is used with an automatic bar feeder. It can produce finished products from raw materials at one time. There is only one clamping and positioning during the processing, and the positioning is performed using the most demanding pin holes, which greatly improves the processing accuracy and efficiency, thereby ensuring product quality and user experience. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the overall structure of the present invention.

[0019] Figure 2 It is the installation distribution and structural diagram of the processing unit in the present invention.

[0020] Figure 3 It is a structural schematic diagram of the workpiece transfer mechanism in the present invention.

[0021] Figure 4 It is a structural schematic diagram of the workpiece fixture in the present invention.

[0022] Figure 5 It is a structural schematic diagram of the clamping component in the present invention.

[0023] Figure 6 It is a schematic diagram of the connection between the present invention and a bar feeder.

[0024] Figure 7 It is a schematic diagram of the finished structure of the lock core. DETAILED DESCRIPTION

[0025] like Figure 1-7As shown, an automatic bar processing equipment is connected to a bar feeder 10 to form a fully automatic processing, which includes: a machine tool stand 1, and a lathe spindle 2 installed on the table of the machine tool stand 1 and capable of automatically clamping the bar, a first processing unit 3, a workpiece transfer mechanism 4, and a groove drawing tool 5; a spindle servo motor 6 is fixedly installed on the machine tool stand 1; the output end of the spindle servo motor 6 is connected to the lathe spindle 2 through a synchronous belt 7, and the lathe spindle 2 is driven to rotate, which is convenient for turning processing; the groove drawing tool 5 is separated from the lathe spindle 2 They are respectively located on both sides of the table top of the machine tool frame 1; the first processing unit 3 for completing the machining of the bar is also distributed on both sides of the clamping end of the lathe spindle 2; the workpiece transfer mechanism 4 is provided with a gantry body 41 and a workpiece fixture 42; the gantry body 41 is connected and fixed to the machine tool frame 1; the gantry body 41 is provided with a first translation mechanism 411; the workpiece fixture 42 is inverted on the first translation mechanism 411, and is driven by the first translation mechanism 411 to reciprocate between the grooving tool 5 and the lathe spindle 2.

[0026] Reference Figure 2 , 7 As shown, the first processing unit 3 includes: a three-axis moving mechanism 30, a first drilling and milling head 31, a turning tool 32, a first cutting head 33, and a second translation mechanism 34; the three-axis moving mechanism 30 and the second translation mechanism 34 are respectively distributed and installed on the table of the machine tool frame 1 on both sides of the lathe spindle 2; the three-axis moving mechanism 30 is composed of three groups of servo modules connected to each other, which is convenient for precise processing; a turning tool 32 and at least one first drilling and milling head 31 are installed in the upper part of the three-axis moving mechanism 30; the turning tool 32 is used to turn the bar material into the required outer diameter; the first drilling and milling head 31 is used to drill the pin hole 100; the first cutting head 33 is installed on the second translation mechanism 34, and a cutting blade is used to cut the material, mainly when the workpiece fixture 42 is clamping the bar material, the bar material cannot rotate, and the conventional turning method cannot be implemented; the first cutting head 33 is provided with a first manual adjustment slide 330; it is connected and fixed to the second translation mechanism 34.

[0027] Preferably, a second processing unit 8 is also installed on the table top of the machine tool stand 1; the second processing unit 8 includes: a third translation mechanism 81 and a fourth translation mechanism 82, a second drilling and milling head 83, and a second cutting head 84 corresponding to the table top of the machine tool stand 1; the third translation mechanism 81 is equipped with a second drilling and milling head 83 for processing the key groove 300 on the front end surface of the lock cylinder; the fourth translation mechanism 82 is equipped with a second cutting head 84 for processing the transmission tail 400 at the rear end of the lock cylinder; the second drilling and milling head 83 is provided with a second manual adjustment slide 830, which is correspondingly connected and fixed to the third translation mechanism 81; the second cutting head 84 is provided with a third manual adjustment slide 840; which is correspondingly connected and fixed to the fourth translation mechanism 82.

[0028] Reference Figure 1 , 4 As shown in Figure 5, the workpiece fixture 42 consists of a rotating component 421 and a clamping component 422; the rotating component 421 can drive the clamping component 422 to rotate, thereby driving the workpiece to rotate, so as to facilitate the second processing unit 8 to complete the processing of the transmission tail 400 and the key sink 300 on the lock core; the rotating component 421 includes: a mounting base 4211, a rotating shaft 4212, and a pushing element 4213 corresponding to the first translation mechanism 411; the mounting base 4211 is provided with a hollow portion, and the rotating shaft 4212 is vertically axially connected through a bearing 4214; the top surface of the rotating shaft 4212 is correspondingly connected with the clamping component 422; the middle section of the rotating shaft 4212 is fixedly installed with a gear 4215, which is correspondingly located in the hollow portion of the mounting base 4211; the pushing element 4213 It is installed and fixed on the installation base 4211, and its output end is connected with a rack 4216; the rack 4216 corresponds to the meshing gear 4215; a top wheel 4217 is installed on the installation base 4211, corresponding to the limit top rack 4216; two limit columns 4218 for limiting the rotation angle of the rotating shaft 4212 are also installed and fixed on the installation base 4211; the upper half of the rotating shaft 4212 is horizontally penetrated by the installation limit beam 4214, corresponding to the top limit column 4218; the two limit columns 4218 are distributed at 90 degrees, and in the initial state, one end of the limit beam 4214 is against one of the limit columns 4218; after the rotating shaft 4212 rotates, the other end of the limit beam 4214 is against the other limit column 4218, so that the workpiece completes a 90-degree rotation.

[0029] Preferably, the clamping component 422 includes: a connecting bracket 4221, a clamping cylinder 4222, and a clamping block 4223; the connecting bracket 4221 is connected and fixed to the top surface of the rotating shaft 4212; a workpiece cavity 4224 is installed on the connecting bracket 4221; a clamping cylinder 4222 is also fixedly installed on the connecting bracket 4221; the pushing end of the clamping cylinder 4222 is connected and fixed with a clamping block 4223; the clamping block 4223 enters and exits the workpiece cavity 4224 to clamp the workpiece.

[0030] Preferably, the side wall of the workpiece cavity 4224 is provided with an avoidance notch 4225 for facilitating the groove drawing process, and the avoidance notch 4225 needs to pass through the groove drawing tool 5 to draw out the key groove 200.

[0031] Preferably, a plurality of positioning bosses 4226 for positioning the workpiece are provided on the clamping workpiece surface of the clamping block 4223. After the bar is processed by the first drilling and milling head 31 and the turning tool 32, the clamping component 422 needs to clamp the bar to facilitate subsequent processing. In order to ensure the accuracy of subsequent processing, the positioning boss 4226 will be stuck in the lock core hole 100 when clamping the workpiece to prevent the workpiece from shifting and affecting the accuracy.

[0032] Preferably, the first translation mechanism 411 , the second translation mechanism 34 , the third translation mechanism 81 and the fourth translation mechanism 82 have the same structure and principle, and all adopt servo modules.

[0033] Preferably, a discharge mechanism 11 and a control box 12 are installed and connected to the machine tool frame 1; the discharge mechanism 11 consists of a discharge bin rail 111 and a return rod 112; the discharge bin rail 111 is directly connected and fixed to the machine tool frame 1; the return rod 112 is connected and fixed to the machine tool frame 1 through a bracket; the return rod 112 is located directly above the discharge bin rail 111, and when all processing is completed, the clamping component 422 will lean against the return rod 112, so that the return rod 112 enters the workpiece cavity 4224 to eject the product into the discharge bin rail 111.

[0034] Figure 7 The structure diagram of the finished lock core is shown in FIG. 1 , wherein the pin hole 100, the key slot 200, the key slot 300 and the transmission tail 400 are obtained by machining. Figure 1-6 , the following will describe in detail the process of using the processing equipment to process the lock core: first, the bar material is loaded, the bar feeder 10 automatically pushes the bar material according to the demand, the lathe spindle 2 is clamped, and then the three-axis moving mechanism 30 in the first processing unit 3 is actuated to drive the turning tool 32 to complete the external cylindrical turning, and then drive the first drilling and milling head 31 to complete the processing of the pin hole 100, then, the clamping part 421 of the workpiece clamp 42 clamps the workpiece, and at the same time, the first cutting head 33 in the first processing unit 3 completes the cutting and blanking under the drive of the second translation mechanism 34, and then the workpiece clamp 42 is driven by the first translation mechanism 411 It moves downward to the second processing unit 8, and the rotating part 421 rotates 90 degrees at the same time. Then the second drilling and milling head 83 and the second cutting head 84 on the second processing unit 8 respectively process the two ends of the workpiece to obtain the key groove 300 and the transmission tail 400. Then the workpiece clamp 42 continues to move forward driven by the first translation mechanism 411. During the process, the rotating part 421 rotates back to the initial position, and after passing the groove drawing tool 5, the key groove 200 is processed. Then the workpiece clamp 42 continues to move forward and loosens the workpiece before the ejector rod 112 enters the workpiece cavity 4224 to complete the unloading.

[0035] The present invention proposes an automatic bar processing equipment, which is used with an automatic bar feeder. It can produce finished products from raw materials at one time. There is only one clamping and positioning during the processing, and the positioning is performed using the most demanding pin holes, which greatly improves the processing accuracy and efficiency, thereby ensuring product quality and user experience.

[0036] It should be understood that the exemplary embodiments described herein are illustrative rather than restrictive; although embodiments of the present invention are described in conjunction with the accompanying drawings, those skilled in the art should understand that various changes in form and details may be made without departing from the spirit and scope of the present invention as defined by the appended claims.

Claims

1. An automatic bar processing device, comprising: A machine tool stand (1), a lathe spindle (2) installed on the table of the machine tool stand (1) and capable of automatically clamping a bar material, a first processing unit (3), a workpiece transfer mechanism (4), and a groove drawing tool (5); characterized in that: a spindle servo motor (6) is fixedly installed on the machine tool stand (1); the output end of the spindle servo motor (6) is connected to the lathe spindle (2) through a synchronous belt (7), thereby driving the lathe spindle (2) to rotate; the groove drawing tool (5) and the lathe spindle (2) are respectively located On both sides of the table of the machine tool stand (1); on both sides of the clamping end of the lathe spindle (2) are also distributed a first processing unit (3) for completing the machining of the bar material; the workpiece transfer mechanism (4) is provided with a gantry body (41) and a workpiece fixture (42); the gantry body (41) is connected and fixed to the machine tool stand (1); the gantry body (41) is provided with a first translation mechanism (411); the workpiece fixture (42) is installed on the first translation mechanism (411) and is The workpiece clamp (42) is driven by a translation mechanism (411) and reciprocates between the groove drawing tool (5) and the lathe spindle (2); the workpiece clamp (42) is composed of a rotating component (421) and a clamping component (422); the clamping component (422) comprises: a connecting bracket (4221), a clamping cylinder (4222), and a clamping block (4223); a workpiece cavity (4224) is installed on the connecting bracket (4221); a clamping cylinder is also fixedly installed on the connecting bracket (4221) (4222); the pushing end of the clamping cylinder (4222) is connected and fixed with a clamping block (4223); the clamping block (4223) enters and exits the workpiece cavity (4224) to clamp the workpiece; the side wall of the workpiece cavity (4224) is provided with a avoidance notch (4225) for facilitating grooving processing, and the clamping workpiece surface of the clamping block (4223) is provided with a plurality of positioning bosses (4226) for positioning the workpiece; when the workpiece is clamped, the positioning boss 4226 will be stuck in the lock core hole 100.

2. The automatic bar processing equipment according to claim 1, characterized in that: The first processing unit (3) comprises: a three-axis moving mechanism (30), a first drilling and milling head (31), a turning tool (32), a first cutting head (33), and a second translation mechanism (34); the three-axis moving mechanism (30) and the second translation mechanism (34) are respectively installed on the table of the machine tool frame (1) on both sides of the lathe spindle (2); the three-axis moving mechanism (30) is composed of three groups of servo modules connected to each other; the turning tool (32) and at least one first drilling and milling head (31) are installed in the middle of the three-axis moving mechanism (30); the first cutting head (33) is installed on the second translation mechanism (34); the first cutting head (33) is provided with a first manually adjustable slide (330); and is correspondingly connected and fixed to the second translation mechanism (34).

3. The automatic bar processing equipment according to claim 1 is characterized in that: A second processing unit (8) is also installed on the table top of the machine tool stand (1); the second processing unit (8) comprises: a third translation mechanism (81) and a fourth translation mechanism (82) correspondingly connected to the table top of the machine tool stand (1), a second drilling and milling head (83), and a second cutting head (84); the second drilling and milling head (83) is installed on the third translation mechanism (81); the second cutting head (84) is installed on the fourth translation mechanism (82); the second drilling and milling head (83) is provided with a second manually adjustable slide (830) correspondingly connected and fixed to the third translation mechanism (81); the second cutting head (84) is provided with a third manually adjustable slide (840) correspondingly connected and fixed to the fourth translation mechanism (82).

4. The automatic bar processing equipment according to claim 1 is characterized in that: The rotating component (421) comprises: a mounting base (4211) correspondingly connected and fixed to the first translation mechanism (411), a rotating shaft (4212), and a pushing element (4213); the mounting base (4211) is provided with a hollow portion, and is vertically connected to the rotating shaft (4212) via a bearing; the connecting bracket (4221) is correspondingly connected and fixed to the top surface of the rotating shaft (4212); the top surface of the rotating shaft (4212) is correspondingly connected to a clamping component (422); a gear (4215) is fixedly installed in the middle section of the rotating shaft (4212), corresponding to the hollow portion located at the mounting base (4211). The pushing element (4213) is installed and fixed on the mounting base (4211), and its output end is connected to a rack (4216); the rack (4216) corresponds to the meshing gear (4215); a supporting wheel (4217) is installed on the mounting base (4211), corresponding to the limiting supporting rack (4216); two limiting supporting columns (4218) for limiting the rotation angle of the rotating shaft (4212) are also installed and fixed on the mounting base (4211); a limiting beam (4214) is installed transversely through the upper half of the rotating shaft (4212), corresponding to the supporting limiting supporting column (4218).

5. The automatic bar processing equipment according to claim 1, 2 or 3, characterized in that: The first translation mechanism (411), the second translation mechanism (34), the third translation mechanism (81) and the fourth translation mechanism (82) have the same structure and principle, and all adopt servo modules.

6. The automatic bar processing equipment according to claim 1, characterized in that: A material discharging mechanism (11) and a control box (12) are installed and connected on the machine tool frame (1); the material discharging mechanism (11) is composed of a material discharging bin rail (111) and a material return rod (112); the material discharging bin rail (111) is directly connected and fixed to the machine tool frame (1); the material return rod (112) is connected and fixed to the machine tool frame (1) via a bracket; the material return rod (112) is located directly above the material discharging bin rail (111).

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